{"title":"SENVILLE : Climatisation, Ventilation \u0026 Chauffage | Montréal, Laval, Longueuil, Rive Sud et Rive Nord","description":null,"products":[{"product_id":"thermopompe-murale-senville-aura-de-24-000-btu-montreal","title":"Senville AURA 24,000 BTU Wall-Mounted Heat Pump Montreal (-30°C)","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eInstallation and distribution of the Senville AURA wall-mounted heat pump\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e24,000 BTU, throughout Greater Montreal.\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eFor over 10 years, Senville has been a leader in Canada and the United States in energy-efficient and environmentally friendly mini-split and air conditioning systems.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Senville AURA series is Energy Star certified, meaning this air conditioner meets the highest standards of efficiency and environmental awareness. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eEnjoy consistent cooling, heating, and low energy costs with Senville ductless air conditioners.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eSenville units have SEER ratings as high as 25!\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMain Features:\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTOSHIBA GMCC COMPRESSOR\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eENERGY STAR EFFICIENCY\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDC INVERTER 180° SINE WAVE\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eREFRIGERANT LEAK DETECTION\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAURA SERIES SEER 25, 22.5, 20.5, 20 !!!\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHSPF 11.2, 12, 10.3, 10.3 !!!\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e10-year warranty on EVERYTHING!\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":44556175835428,"sku":"SENA-24HF-Z","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/products\/SENVILLETHERMOPOMPEAURAMINISPLITMONTREAL.png?v=1696199521"},{"product_id":"thermopompe-murale-senville-aura-de-18-000-btu-montreal","title":"Senville AURA 18,000 BTU Wall-Mounted Heat Pump Montreal (-30°C)","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eInstallation and distribution of the Senville AURA wall-mounted heat pump\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e18,000 BTU, throughout Greater Montreal.\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eFor over 10 years, Senville has been a leader in Canada and the United States in energy-efficient and environmentally friendly mini-split and air conditioning systems.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Senville AURA series is Energy Star certified, meaning this air conditioner meets the highest standards of efficiency and environmental awareness. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eEnjoy consistent cooling, heating, and low energy costs with Senville ductless air conditioners.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eSenville units have SEER ratings as high as 25!\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eKey Features:\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTOSHIBA GMCC COMPRESSOR\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eENERGY STAR EFFICIENCY\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDC INVERTER 180° SINE WAVE\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eREFRIGERANT LEAK DETECTION\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAURA SERIES SEER 25, 22.5, 20.5, 20 !!!\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHSPF 11.2, 12, 10.3, 10.3 !!!\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e10-year warranty on EVERYTHING!\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":44556176032036,"sku":"SENA-18HF-Z","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/products\/SENVILLETHERMOPOMPEAURAMINISPLITMONTREAL_7352631e-378c-413a-9b2c-049b8b1e2978.png?v=1696199526"},{"product_id":"thermopompe-murale-senville-aura-de-12-000-btu-montreal","title":"Senville AURA 12,000 BTU Wall-Mounted Heat Pump Montreal (-30°C)","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eInstallation and distribution of the Senville AURA wall-mounted heat pump\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e12,000 BTU, throughout Greater Montreal.\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eFor over 10 years, Senville has been a leader in Canada and the United States in energy-efficient and eco-friendly mini split and air conditioning systems.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Senville AURA series is Energy Star certified, meaning this air conditioner meets the highest standards of efficiency and environmental responsibility. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eEnjoy consistent cooling, heating, and low energy costs with Senville ductless air conditioners.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eSenville units have SEER ratings as high as 25!\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eKey Features:\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003eTOSHIBA GMCC COMPRESSOR\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eENERGY STAR EFFICIENCY\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDC INVERTER 180° SINE WAVE\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eREFRIGERANT LEAK DETECTION\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAURA SERIES SEER 25, 22.5, 20.5, 20 !!!\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHSPF 11.2, 12, 10.3, 10.3 !!!\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e10-year warranty on EVERYTHING!\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":44556176326948,"sku":"SENA-12HF-Z","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/products\/SENVILLETHERMOPOMPEAURAMINISPLITMONTREAL_dcd5e976-39b7-4fbd-867a-b85687848377.png?v=1696199527"},{"product_id":"thermopompe-murale-senville-aura-de-9-000-btu-montreal","title":"Senville AURA 9,000 BTU Wall-Mounted Heat Pump Montreal (-30°C)","description":"\u003ch2 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eInstallation and distribution of the Senville AURA 9,000 BTU wall-mounted heat pump throughout Greater Montreal.\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eFor over 10 years, Senville has been a leader in Canada and the United States in energy-efficient and eco-friendly mini split and air conditioning systems.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Senville AURA series is Energy Star certified, meaning this air conditioner meets the highest standards of efficiency and environmental awareness. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eEnjoy consistent cooling, heating, and low energy costs with Senville ductless air conditioners.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eSenville units have SEER ratings as high as 25!\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eKey Features:\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli\u003eTOSHIBA GMCC COMPRESSOR\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eENERGY STAR EFFICIENCY\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eDC INVERTER 180° SINE WAVE\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eREFRIGERANT LEAK DETECTION\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eAURA SERIES SEER 25, 22.5, 20.5, 20 !!!\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003eHSPF 11.2, 12, 10.3, 10.3 !!!\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e10-year warranty on EVERYTHING!\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":44556176392484,"sku":"SENA-09HF-Z","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/products\/SENVILLETHERMOPOMPEAURAMINISPLITMONTREAL_47ba4883-f0f5-42d5-8081-7a4cc81d448a.png?v=1696199525"},{"product_id":"thermopompe-murale-senville-leto-de-24-000-btu-montreal","title":"Wall Mounted Heat Pump Senville LETO of 24 000 BTU Montreal","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003e\u003cmeta charset=\"utf-8\"\u003eDistribution and Installation of the 24 000 BTU\u0026nbsp;Senville LETO wall-mounted heat pump.\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWith SEER Ratings as high as 15, the Senville Leto surpasses many of the top name brands when it comes to efficiency.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eEnjoy the benefit of a cool climate controlled room, with a simple and easy to install air 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Control\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":44556502139172,"sku":"SENL-24CD","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/products\/SENVILLELETOTHERMOPOMPEMURALEMINISPLITMONTREAL.png?v=1696199518"},{"product_id":"thermopompe-murale-senville-leto-de-18-000-btu-montreal","title":"Wall Mounted Heat Pump Senville LETO of 18 000 BTU Montreal","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003ch2 data-mce-fragment=\"1\"\u003e\u003cmeta charset=\"utf-8\"\u003eDistribution and Installation of the 18 000 BTU\u0026nbsp;Senville LETO wall-mounted heat pump.\u003c\/h2\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWith SEER Ratings as high as 15, the Senville Leto surpasses many of the top name brands when it comes to efficiency.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eEnjoy the benefit of a cool climate 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Control\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":44556502401316,"sku":"SENL-12CD","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/products\/SENVILLELETOTHERMOPOMPEMURALEMINISPLITMONTREAL_344a596c-06f7-45db-9442-3c697b02bd8e.png?v=1696199519"},{"product_id":"thermopompe-murale-senville-leto-de-9-000-btu-montreal","title":"Wall Mounted Heat Pump Senville LETO of 9 000 BTU Montreal","description":"\u003ch2\u003e\u003cmeta charset=\"utf-8\"\u003eDistribution and Installation of the 9 000 BTU\u0026nbsp;Senville LETO wall-mounted heat pump.\u003c\/h2\u003e\n\u003cp\u003eWith SEER Ratings as high as 15, the Senville Leto surpasses many of the top name brands when it comes to efficiency.\u003c\/p\u003e\n\u003cp\u003eEnjoy the benefit of a cool climate controlled room, with a simple and easy to install air conditioner.\u003c\/p\u003e\n\u003cp\u003eAdditionally, the 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Title","offer_id":44556504695076,"sku":"SENL-09CD","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/products\/SENVILLELETOTHERMOPOMPEMURALEMINISPLITMONTREAL_2a70a242-e4ed-44d4-b2ed-025a666c4169.png?v=1696199519"},{"product_id":"thermopompe-murale-senville-aura-r454b-6000-btu-montreal-rive-sud-nord","title":"SENVILLE AURA R454B Wall-Mounted Heat Pump | 6000 BTU | Montréal, South Shore \u0026 North Shore","description":"\u003ch2\u003eA 6,000 BTU heat pump designed for small rooms, with no compromise on performance in Quebec's climate\u003c\/h2\u003e\n\u003cp\u003eA \u003cstrong\u003e6,000 BTU\u003c\/strong\u003e wall-mounted heat pump meets a very specific need: efficiently heating and cooling a small area without installing an unnecessarily oversized unit. The \u003cstrong\u003eSENVILLE AURA R454B 6,000 BTU\u003c\/strong\u003e stands out precisely for its ability to modulate well below and above its rated capacity, operate down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, provide high seasonal efficiency, offer WiFi connectivity, and run on a 208\/230 V power supply.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we place great importance on this category of heat pumps. In \u003cstrong\u003eMontréal, Laval, Longueuil, on the South Shore and the North Shore\u003c\/strong\u003e, many bedrooms, enclosed offices, small apartments, extensions, and targeted spaces do not need a 12,000 BTU heat pump. In these situations, a properly sized unit can provide better temperature control, more stable operation, and superior acoustic comfort.\u003c\/p\u003e\n\u003cp\u003eSenville's documentation identifies this unit as belonging to the \u003cstrong\u003eAURA SENA-06HF\u003c\/strong\u003e series, with a rated cooling capacity of 6,000 BTU. The manufacturer recommends it for rooms of approximately \u003cstrong\u003e100 to 250 sq. ft.\u003c\/strong\u003e and specifies that professional installation is required. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThe essential features of the 6,000 BTU SENVILLE AURA\u003c\/h3\u003e\n\u003cp\u003eOn our AirGreen page, the combination is identified as follows:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENA-06HF-OG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: SENA-06HF-IGG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735294\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated cooling capacity: 6,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR®: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR® Cold Climate: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMinimum heating temperature: -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWiFi: included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant piping: 1\/4 in – 3\/8 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 220 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 12 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum overcurrent protection: 15 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eVertical louvers: automatic\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHorizontal louvers: automatic\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor sound level: 22 to 44 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound level: 53 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe manufacturer's technical documentation specifically confirms a \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e power supply, a voltage range of 187 to 253 V, a \u003cstrong\u003eSEER2 of 25.5\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 18\u003c\/strong\u003e, a modulating cooling capacity of \u003cstrong\u003e2,300 to 12,600 BTU\/h\u003c\/strong\u003e, and a rated heating capacity of 7,000 BTU\/h with modulation from \u003cstrong\u003e3,000 to 11,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation range deserves particular attention. An inverter heat pump is not a unit that constantly operates at exactly 6,000 BTU. It adjusts its output according to demand. In a small bedroom that is gradually approaching the set temperature, the compressor can reduce its speed rather than simply stopping and restarting constantly.\u003c\/p\u003e\n\u003ch3\u003eSEER2 25.5: particularly impressive efficiency for a small wall-mounted heat pump\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE AURA 6,000 BTU\u003c\/strong\u003e has a \u003cstrong\u003eSEER2 of 25.5\u003c\/strong\u003e and an \u003cstrong\u003eEER2 of 18\u003c\/strong\u003e, according to the manufacturer's documentation. The same document indicates an \u003cstrong\u003eHSPF2-4 of 14.8\u003c\/strong\u003e, an \u003cstrong\u003eHSPF2-5 of 11.5\u003c\/strong\u003e, and a stated nominal COP of 4.2. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor homeowners, these figures are mainly useful for comparing units with similar capacities. SEER2 represents seasonal cooling efficiency, while HSPF2 concerns heating. The value of a heat pump like the AURA therefore lies not only in its ability to produce heat at low temperatures, but also in its ability to operate efficiently during the many hours when the outdoor temperature is much milder.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specifications also provide particularly useful data for our climate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e8,700 BTU\/h at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e7,700 BTU\/h at -15 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e3,200 BTU\/h maximum at -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese figures help illustrate an important reality. The statement “heating down to -30 °C” does not mean that the unit maintains its full rated heating capacity at -30 °C. As with virtually any heat pump, its available capacity decreases as the cold becomes extreme.\u003c\/p\u003e\n\u003cp\u003eThat is precisely why, at AirGreen, we never recommend a heat pump based solely on the minimum temperature listed on the specification sheet. \u003cstrong\u003eRoom sizing and heat loss remain essential.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eA 6,000 BTU capacity that must be used in the right place\u003c\/h3\u003e\n\u003cp\u003eAccording to Senville, this unit is suitable for spaces of approximately \u003cstrong\u003e100 to 250 sq. ft.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e However, square footage is only a starting point.\u003c\/p\u003e\n\u003cp\u003eFor an installation in \u003cstrong\u003eMontréal, Laval, Longueuil, Boucherville, Terrebonne, Repentigny, or elsewhere on the South Shore and North Shore\u003c\/strong\u003e, we must also consider:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003ethe number and area of the windows;\u003c\/li\u003e\n\u003cli\u003etheir orientation;\u003c\/li\u003e\n\u003cli\u003einsulation quality;\u003c\/li\u003e\n\u003cli\u003ethe floor where the room is located;\u003c\/li\u003e\n\u003cli\u003eexterior-facing walls;\u003c\/li\u003e\n\u003cli\u003eair infiltration;\u003c\/li\u003e\n\u003cli\u003eair circulation toward adjacent rooms;\u003c\/li\u003e\n\u003cli\u003eactual space usage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA well-insulated 180 sq. ft. bedroom in a recent construction does not necessarily have the same needs as a room of the same size located on the top floor of an older building with a large south-facing window.\u003c\/p\u003e\n\u003cp\u003eIt is also a mistake to consider a \u003cstrong\u003e6,000 BTU\u003c\/strong\u003e heat pump an automatic solution for an open-plan space simply because its maximum cooling capacity can temporarily rise far above 6,000 BTU.\u003c\/p\u003e\n\u003ch3\u003eAn inverter heat pump that modulates between 2,300 and 12,600 BTU in cooling mode\u003c\/h3\u003e\n\u003cp\u003eThe official cooling range is \u003cstrong\u003e2,300 to 12,600 BTU\/h\u003c\/strong\u003e, while the heating range is \u003cstrong\u003e3,000 to 11,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is an important advantage in a small room.\u003c\/p\u003e\n\u003cp\u003eConsider a typical example: a closed office quickly reaches 23 °C after the air conditioner starts. An improperly sized unit might stop its compressor, allow the temperature to rise, and then restart a few minutes later.\u003c\/p\u003e\n\u003cp\u003eAn inverter system capable of greatly reducing its output can instead operate at low capacity to maintain a more consistent temperature.\u003c\/p\u003e\n\u003cp\u003eFor the occupant, this may mean:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003efewer temperature fluctuations;\u003c\/li\u003e\n\u003cli\u003efewer abrupt starts;\u003c\/li\u003e\n\u003cli\u003egreater comfort stability;\u003c\/li\u003e\n\u003cli\u003ereduced noise at low speed;\u003c\/li\u003e\n\u003cli\u003emore gradual humidity management.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOnly 22 dB(A) at low indoor speed\u003c\/h3\u003e\n\u003cp\u003eFor a bedroom or office, indoor unit noise often becomes just as important as its capacity.\u003c\/p\u003e\n\u003cp\u003eThe documentation indicates four airflow levels:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eMode\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eIndoor airflow\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTurbo\u003c\/td\u003e\n\u003ctd\u003e382.6 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003e323.7 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedium\u003c\/td\u003e\n\u003ctd\u003e229.6 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003ctd\u003e176.6 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe corresponding sound pressure levels are \u003cstrong\u003e44.0 \/ 36.5 \/ 32.5 \/ 22.0 dB(A)\u003c\/strong\u003e. The outdoor unit is rated at \u003cstrong\u003e53 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e22 dB(A)\u003c\/strong\u003e level at low speed is particularly appealing when a wall-mounted unit needs to operate overnight.\u003c\/p\u003e\n\u003cp\u003eHowever, location remains decisive. Installing an indoor unit directly above the head of the bed or directing its main airflow toward a workstation can cause discomfort even with a quiet appliance. When planning an installation at AirGreen, we therefore seek, whenever possible, a location that allows good air distribution throughout the room.\u003c\/p\u003e\n\u003ch3\u003eCompact dimensions for the indoor and outdoor units\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e33.40 in. wide × 9.18 in. deep × 11.76 in. high\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e22.93 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e30.12 in × 11.93 in × 21.85 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003efor a weight of approximately \u003cstrong\u003e62.17 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese dimensions make it easier to integrate the system into several projects where available space is limited, particularly in condos, small duplexes, bedrooms, or offices.\u003c\/p\u003e\n\u003cp\u003eNevertheless, we must maintain the required technical clearances around the outdoor unit. A heat pump must not be enclosed in an overly confined space solely to make it less visible.\u003c\/p\u003e\n\u003ch3\u003eR-454B: the new generation of refrigerant used by this AURA\u003c\/h3\u003e\n\u003cp\u003eThis version uses \u003cstrong\u003eR-454B refrigerant\u003c\/strong\u003e. The manufacturer indicates a charge of \u003cstrong\u003e32.45 oz\u003c\/strong\u003e and a factory charge intended for piping up to \u003cstrong\u003e25 feet\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specifications indicate 1\/4 in – 3\/8 in piping.\u003c\/p\u003e\n\u003cp\u003eThis is essential information when replacing an existing heat pump. We never assume that old piping can automatically be reused because it “looks like” the new one. Its diameter, condition, routing, and compatibility must be verified.\u003c\/p\u003e\n\u003cp\u003eSenville's documentation also specifies that a 50-foot configuration requires an additional amount of refrigerant to be added on site by the installer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eA relatively light electrical supply: MCA 12 A and maximum protection of 15 A\u003c\/h3\u003e\n\u003cp\u003eFor this unit, the technical documentation provides:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e208\/230 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003esingle-phase\u003c\/li\u003e\n\u003cli\u003e60 Hz\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 12 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003emaximum fuse or circuit breaker: 15 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003especified connection wiring: \u003cstrong\u003e14\/4 AWG\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe relatively small capacity of this heat pump can therefore simplify certain electrical projects compared with much higher-capacity units.\u003c\/p\u003e\n\u003cp\u003eHowever, this does not eliminate the need to verify the existing electrical installation. At AirGreen, we want the protection, wiring, disconnect switch, and power supply to be suitable for the model actually installed.\u003c\/p\u003e\n\u003ch2\u003eInstallation, WiFi, and everyday use: what we check at AirGreen\u003c\/h2\u003e\n\u003ch3\u003eBuilt-in WiFi and Alexa compatibility\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE AURA 6,000 BTU\u003c\/strong\u003e has built-in WiFi and can be controlled from an iOS or Android device. The documentation also confirms its compatibility with \u003cstrong\u003eAmazon Alexa\u003c\/strong\u003e, particularly for adjusting the temperature remotely and creating certain routines. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis becomes particularly useful for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea secondary residence;\u003c\/li\u003e\n\u003cli\u003ean office used only on certain days;\u003c\/li\u003e\n\u003cli\u003ea guest bedroom;\u003c\/li\u003e\n\u003cli\u003ea dwelling where you want to adjust the temperature before arrival;\u003c\/li\u003e\n\u003cli\u003ea room located on another floor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe remote control also has the \u003cstrong\u003eFollow Me\u003c\/strong\u003e function, which uses the sensor built into the remote control as the temperature reference point. The manufacturer also mentions a dehumidification function, a silver-ion filter, and a refrigerant leak detection system. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eDehumidification, self-cleaning, and diagnostics\u003c\/h3\u003e\n\u003cp\u003eIn cooling mode, comfort depends not only on temperature. In Montreal and the greater metropolitan area, hot periods can also be very humid.\u003c\/p\u003e\n\u003cp\u003eThe technical specifications indicate a moisture-removal capacity of \u003cstrong\u003e0.3 L\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AURA series also includes several functions intended for operation and maintenance:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eself-cleaning mode;\u003c\/li\u003e\n\u003cli\u003eleak detection;\u003c\/li\u003e\n\u003cli\u003eself-diagnostic system;\u003c\/li\u003e\n\u003cli\u003ediagnostic display;\u003c\/li\u003e\n\u003cli\u003edehumidification function;\u003c\/li\u003e\n\u003cli\u003esilver-ion filter;\u003c\/li\u003e\n\u003cli\u003ePTC heating element for the outdoor area;\u003c\/li\u003e\n\u003cli\u003eoperation in low-temperature cooling mode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese functions are described in Senville’s documentation as tools for more quickly identifying certain operating problems and facilitating system maintenance. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, they do not replace physical maintenance of the unit. The filters must be cleaned, the evaporator must remain clean, the drain must properly remove condensate, and the outdoor unit must maintain adequate airflow.\u003c\/p\u003e\n\u003ch3\u003eThree mistakes we want to avoid with a 6,000 BTU heat pump\u003c\/h3\u003e\n\u003ch4\u003e1. Choosing 6,000 BTU for a room that is far too large\u003c\/h4\u003e\n\u003cp\u003eThe small capacity is an advantage when it genuinely matches the needs. It becomes a problem when attempting to cool a large open area, several rooms, or an entire floor with a single unit designed for a limited area.\u003c\/p\u003e\n\u003cp\u003eIn this case, the unit may operate continuously at high capacity without evenly reaching the desired temperature.\u003c\/p\u003e\n\u003ch4\u003e2. Installing the unit in the wrong location\u003c\/h4\u003e\n\u003cp\u003eA maximum airflow of \u003cstrong\u003e382.6 CFM\u003c\/strong\u003e can be very comfortable when the air is distributed properly, but much less pleasant when it blows directly onto the bed, sofa, or desk.\u003c\/p\u003e\n\u003cp\u003eWe therefore consider the room’s layout, not just where it is physically easiest to run the piping.\u003c\/p\u003e\n\u003ch4\u003e3. Neglecting drainage\u003c\/h4\u003e\n\u003cp\u003eIn cooling and dehumidification mode, the indoor unit produces condensate. The drain must be installed with an appropriate slope when gravity drainage is used.\u003c\/p\u003e\n\u003cp\u003eAn installation that works perfectly on the day it is commissioned can become problematic if the drainage was poorly planned.\u003c\/p\u003e\n\u003ch3\u003eAn example of a configuration in which this SENVILLE AURA truly makes sense\u003c\/h3\u003e\n\u003cp\u003eA common scenario in Greater Montreal is a bedroom or enclosed office of approximately 150 to 220 sq. ft. that becomes noticeably warmer in summer than the rest of the property.\u003c\/p\u003e\n\u003cp\u003eAutomatically installing a 12,000 BTU heat pump in this type of room may be excessive. The SENVILLE AURA 6,000 BTU, on the other hand, offers a particularly useful modulation range for maintaining a small area at a stable temperature.\u003c\/p\u003e\n\u003cp\u003eIn a bedroom, the minimum sound level of \u003cstrong\u003e22 dB(A)\u003c\/strong\u003e is also a practical advantage.\u003c\/p\u003e\n\u003cp\u003eIn an office, Wi-Fi, inverter modulation, and independent temperature control tend to become the priorities.\u003c\/p\u003e\n\u003cp\u003eThis type of analysis allows us at AirGreen to recommend capacity based on the room's actual use rather than relying solely on a BTU figure.\u003c\/p\u003e\n\u003ch3\u003eDown to -30 °C, but with capacity decreasing in extreme cold\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer's documentation confirms a minimum heating temperature of \u003cstrong\u003e-22 °F \/ -30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn our AirGreen product sheet, the capacity at very low temperatures is specified in greater detail:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e8,700 BTU\/h at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e7,700 BTU\/h at -15 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e3,200 BTU\/h maximum at -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is an essential distinction for a Quebec homeowner.\u003c\/p\u003e\n\u003cp\u003eA heat pump capable of operating at -30 °C may continue to produce heat, but that does not necessarily mean it will be able to cover 100% of a room's heat loss when the outdoor temperature reaches that level.\u003c\/p\u003e\n\u003cp\u003eFor this reason, we always evaluate the heat pump based on the building, rather than solely on its minimum operating temperature.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a discrepancy to verify between the AirGreen product sheet and Senville documentation\u003c\/h3\u003e\n\u003cp\u003eThe product sheet currently published by AirGreen indicates a warranty of \u003cstrong\u003e10 years on the compressor – 10 years on parts – 0 years on labor\u003c\/strong\u003e, with the possibility of additional coverage.\u003c\/p\u003e\n\u003cp\u003eThe Senville documentation supplied with the product, for its part, states \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBecause conditions may vary depending on the applicable program, registration, distribution channel, or commercial terms in effect, we recommend confirming the exact warranty that will appear on your AirGreen quote at the time of purchase.\u003c\/p\u003e\n\u003cp\u003eThis verification prevents comparing two heat pumps based on a warranty that would not actually apply to the project in question.\u003c\/p\u003e\n\u003ch3\u003eWho do we primarily recommend the SENVILLE AURA 6,000 BTU to?\u003c\/h3\u003e\n\u003cp\u003eThis heat pump deserves particular consideration for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea \u003cstrong\u003esmall bedroom\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea \u003cstrong\u003eclosed office\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea small room in a condo;\u003c\/li\u003e\n\u003cli\u003ea space of approximately \u003cstrong\u003e100 to 250 sq. ft.\u003c\/strong\u003e, subject to an actual load calculation;\u003c\/li\u003e\n\u003cli\u003ea room where quiet operation is a priority;\u003c\/li\u003e\n\u003cli\u003ea project where an \u003cstrong\u003eENERGY STAR® Cold Climate\u003c\/strong\u003e heat pump is desired;\u003c\/li\u003e\n\u003cli\u003ea homeowner wanting \u003cstrong\u003ebuilt-in WiFi\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea project requiring a small unit on a 208\/230 V power supply;\u003c\/li\u003e\n\u003cli\u003ean area where a 9,000 or 12,000 BTU heat pump would be unnecessarily large.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eConversely, if you want to condition a large open-concept area, several connected bedrooms, or an entire floor, we will compare this 6,000 BTU unit with higher-capacity AURA models before finalizing the selection.\u003c\/p\u003e\n\u003ch3\u003eWhy entrust the installation of your SENVILLE AURA to AirGreen?\u003c\/h3\u003e\n\u003cp\u003eA heat pump with a \u003cstrong\u003eSEER2 of 25.5\u003c\/strong\u003e will deliver the expected results only if the installation meets the system's requirements.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we can handle your project throughout \u003cstrong\u003eGreater Montréal, Laval, Longueuil, the South Shore, and the North Shore\u003c\/strong\u003e, from capacity assessment through installation and commissioning.\u003c\/p\u003e\n\u003cp\u003eWe specifically check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe actual room size;\u003c\/li\u003e\n\u003cli\u003eindoor unit location;\u003c\/li\u003e\n\u003cli\u003eair circulation;\u003c\/li\u003e\n\u003cli\u003eoutdoor unit placement;\u003c\/li\u003e\n\u003cli\u003ethe \u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e piping route;\u003c\/li\u003e\n\u003cli\u003econdensate drainage;\u003c\/li\u003e\n\u003cli\u003epiping length;\u003c\/li\u003e\n\u003cli\u003eelectrical requirements;\u003c\/li\u003e\n\u003cli\u003ethe required clearances;\u003c\/li\u003e\n\u003cli\u003efuture access for HVAC maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis step is particularly important with a small-capacity heat pump. The goal is not to sell more BTUs, but to install the capacity that truly matches the building.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre you considering the SENVILLE AURA R454B 6,000 BTU? Contact AirGreen for a quote and to confirm whether this capacity is truly suitable for your bedroom, office, or space in Montréal, Laval, Longueuil, the South Shore, or the North Shore. We can also compare it with the 9,000, 12,000, 15,000, 18,000, or 24,000 BTU versions according to your property's needs.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119541629220,"sku":"SENA-06HF-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_AURA_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789049505"},{"product_id":"thermopompe-murale-senville-aura-r454b-9000-btu-montreal-rive-sud-nord","title":"SENVILLE AURA R454B Wall-Mounted Heat Pump | 9000 BTU | Montréal, South Shore \u0026 North Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 9,000 BTU heat pump designed for spaces where sizing, quiet operation, and performance truly matter\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE AURA R454B 9,000 BTU\u003c\/strong\u003e falls into a particularly interesting category for homeowners looking to cool and heat a room, a compact floor, or a clearly defined area without installing an unnecessarily oversized wall-mounted heat pump. For a bedroom, home office, small condo, studio, addition, or certain rooms that are difficult to balance with the main heating system, its capacity may correspond much more accurately to the building's actual load.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, when we assess a \u003cstrong\u003ewall-mounted heat pump installation in Montreal, Laval, Longueuil, the North Shore, or the South Shore\u003c\/strong\u003e, we never choose a capacity based solely on square footage. Insulation, sun exposure, the number of windows, ceiling height, floor level, room location, and heat loss in winter all have a direct effect on sizing.\u003c\/p\u003e\n\u003cp\u003eFor the SENVILLE AURA, the manufacturer recommends the 9,000 BTU model for spaces of approximately \u003cstrong\u003e100 to 450 sq. ft.\u003c\/strong\u003e The brochure also specifies that it is a ductless heat pump certified by ENERGY STAR and designed to operate in heating mode down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis floor-area range is therefore a starting point, not an absolute rule. A 400 sq. ft. room with extensive glazing in Montreal does not necessarily have the same thermal load as a newer, well-insulated 400 sq. ft. room in Boucherville.\u003c\/p\u003e\n\u003ch3\u003eA modulating capacity that matters more than a simple “9,000 BTU”\u003c\/h3\u003e\n\u003cp\u003eThe figure of \u003cstrong\u003e9,000 BTU\u003c\/strong\u003e corresponds to the nominal cooling capacity. However, the heat pump does not operate continuously at this output.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer's technical table, on page 4 of the brochure, indicates a cooling range of \u003cstrong\u003e3,000 to 10,500 BTU\/h\u003c\/strong\u003e and a nominal heating capacity of \u003cstrong\u003e9,800 BTU\/h\u003c\/strong\u003e, with modulation of approximately \u003cstrong\u003e3,100 to 11,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation is important in a small room.\u003c\/p\u003e\n\u003cp\u003eA traditional heat pump that is too large for the space could quickly reach the desired temperature, shut off, restart, and then repeat the cycle. A properly sized inverter system can instead gradually reduce its output as the load decreases. This promotes a more consistent temperature and more stable operation.\u003c\/p\u003e\n\u003cp\u003eFor a condo owner in \u003cstrong\u003eMontreal\u003c\/strong\u003e, for example, a properly selected 9,000 BTU heat pump may be a better choice than a 12,000 or 18,000 BTU model selected simply with an excessively large safety margin.\u003c\/p\u003e\n\u003ch3\u003eSEER2 of 27.4: particularly impressive cooling efficiency\u003c\/h3\u003e\n\u003cp\u003eEfficiency is one of the strongest points of this SENVILLE AURA.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer's technical data indicate:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eFeature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSENVILLE AURA SENA-09HF\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated cooling capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e9,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3,000 to 10,500 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated heating capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e9,800 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3,100 to 11,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSEER2\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e27,4\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEER2\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e14,5\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2-4\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e13,9\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2-5\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e9,8\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCOP indicated by the manufacturer\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3,55\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eR-454B\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum outdoor temperature in heating mode\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e-30 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThese SEER2, EER2, and HSPF2 values appear directly in the technical table on page 4 of Senville's documentation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSEER2 of 27.4\u003c\/strong\u003e is particularly relevant for a wall-mounted heat pump used regularly during the summer. It measures seasonal cooling efficiency: the higher the value, the less electricity the unit should normally consume to produce a given amount of cooling, all other things being equal.\u003c\/p\u003e\n\u003cp\u003eSenville states in its documentation that savings of up to 58% on energy costs are possible. However, this type of data should be interpreted as a marketing comparison that depends heavily on the system being replaced, the building, the requested temperature, and usage habits. We prefer to focus on certified ratings such as \u003cstrong\u003eSEER2, EER2, and HSPF2\u003c\/strong\u003e, which allow for a much more useful comparison between equipment.\u003c\/p\u003e\n\u003ch3\u003eHeating at -30 °C: you need to look at the available capacity, not just the minimum temperature\u003c\/h3\u003e\n\u003cp\u003eA common mistake when shopping for a \u003cstrong\u003ecold-climate heat pump in Quebec\u003c\/strong\u003e is to consider only the minimum operating temperature.\u003c\/p\u003e\n\u003cp\u003eThe SENVILLE AURA SENA-09HF can operate in heating mode down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, which is also confirmed by the table on page 5 of the brochure. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, this does not mean that it provides 9,800 or 11,000 BTU\/h at -30 °C.\u003c\/p\u003e\n\u003cp\u003eThe technical data currently displayed on the AirGreen product page notably indicate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e12,000 BTU\/h at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e11,500 BTU\/h at -15 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eup to \u003cstrong\u003e5,100 BTU\/h at -30 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdvertised COP of \u003cstrong\u003e2.494 at -8 °C\u003c\/strong\u003e, \u003cstrong\u003e1.84 at -15 °C\u003c\/strong\u003e, and \u003cstrong\u003e1.114 at -30 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is precisely the type of information we analyze when a customer wants to use a heat pump as a significant source of heating in winter.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-15 °C\u003c\/strong\u003e, the available capacity remains significantly higher than at -30 °C. During extremely cold temperatures, the building's heating load increases while the heat pump's available capacity decreases. In many buildings in Greater Montreal, an additional heating source therefore remains relevant.\u003c\/p\u003e\n\u003cp\u003eThe right goal is not simply to buy a heat pump labeled “-30 °C.” You must check whether its \u003cstrong\u003eactual capacity at winter temperatures\u003c\/strong\u003e meets the needs of the room.\u003c\/p\u003e\n\u003ch3\u003eVery quiet at low speed: a real advantage for a bedroom or office\u003c\/h3\u003e\n\u003cp\u003eThe SENA-09HF has four indicated airflow levels of \u003cstrong\u003e425, 340, 260, and 200 CFM\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe indoor unit's sound pressure ranges from \u003cstrong\u003e23 dB(A)\u003c\/strong\u003e at low speed to \u003cstrong\u003e45 dB(A)\u003c\/strong\u003e in Turbo mode. The outdoor unit's stated sound level is \u003cstrong\u003e56 dB(A)\u003c\/strong\u003e. These values and the dimensions of both units are specified in the table on page 5 of the brochure. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe minimum level of \u003cstrong\u003e23 dB(A)\u003c\/strong\u003e explains why this capacity may be particularly suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea bedroom;\u003c\/li\u003e\n\u003cli\u003ea home office;\u003c\/li\u003e\n\u003cli\u003ea small living room;\u003c\/li\u003e\n\u003cli\u003ea rental unit;\u003c\/li\u003e\n\u003cli\u003ea condo;\u003c\/li\u003e\n\u003cli\u003ea finished basement;\u003c\/li\u003e\n\u003cli\u003ean area where you want to limit variations in fan noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe AirGreen product page also indicates \u003cstrong\u003eautomatic vertical and horizontal louver control\u003c\/strong\u003e. In a small room, this detail is more important than it may seem: the direction of the airflow directly affects the feeling of comfort and the ability to distribute air without creating an overly cold area in front of the unit.\u003c\/p\u003e\n\u003ch3\u003eDimensions: a relatively compact indoor unit\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately \u003cstrong\u003e33.40 in wide × 9.18 in deep × 11.76 in high\u003c\/strong\u003e and weighs approximately 22 lb.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures approximately \u003cstrong\u003e28.74 × 11.02 × 19.49 in\u003c\/strong\u003e and weighs approximately 66 lb.\u003c\/p\u003e\n\u003cp\u003eThese dimensions often make it possible to find a suitable location in installations where wall space is limited. However, we must still maintain the necessary clearances around the unit, account for the panel opening required for servicing, and avoid positioning the air outlet directly toward a bed, workstation, or area where the airflow could become uncomfortable.\u003c\/p\u003e\n\u003ch3\u003eWiFi, app, and Alexa compatibility\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWiFi is included\u003c\/strong\u003e in the configuration shown on the AirGreen product page. Senville documentation also mentions Alexa integration, allowing you to control the heat pump remotely, adjust the settings, and schedule operating times. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe kit contents indicated in the brochure include, among other things, the wireless remote control and an Alexa USB module. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a heat pump installed in an office, a rental unit, or an intermittently occupied residence, remote control can become much more than a simple accessory. In particular, it allows the setpoint to be lowered or restored before occupants arrive and prevents the room from being unnecessarily left at too low or too high a temperature.\u003c\/p\u003e\n\u003ch3\u003eThe switch to R-454B\u003c\/h3\u003e\n\u003cp\u003eThis new generation of SENVILLE AURA uses \u003cstrong\u003eR-454B refrigerant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer specifies a charge of \u003cstrong\u003e37.15 oz\u003c\/strong\u003e and a factory charge corresponding to a maximum piping length of \u003cstrong\u003e25 feet\u003c\/strong\u003e. For an installation with a 50-foot line, the brochure explicitly states that refrigerant must be added on site by the installer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn the AirGreen product sheet, the specified piping diameter for this combination is \u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eR-454B belongs to the new generation of refrigerants with reduced global warming potential compared with R-410A. Since it is an A2L-class refrigerant, its installation requires appropriate work methods, tools, and procedures. This is an additional reason to entrust commissioning to HVAC professionals rather than treating the unit as a do-it-yourself product.\u003c\/p\u003e\n\u003ch2\u003eWhat we check at AirGreen before installing a SENVILLE AURA 9,000 BTU\u003c\/h2\u003e\n\u003cp\u003eA good heat pump can deliver disappointing results when it is improperly sized or poorly positioned. At AirGreen, much of our work therefore involves looking at what surrounds the equipment, not just the figures listed on its technical specifications sheet.\u003c\/p\u003e\n\u003ch3\u003eA typical scenario: a small room with a significant heat load\u003c\/h3\u003e\n\u003cp\u003eWe regularly encounter rooms in \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e whose size seems to immediately indicate a 9,000 BTU heat pump, when the reality is more complex.\u003c\/p\u003e\n\u003cp\u003eConsider a 350 sq. ft. office on the top floor of a plex in Montreal. If it has large west-facing windows, a poorly insulated ceiling, and receives several hours of sunlight, its cooling load may be very different from that of a basement of the same size in \u003cstrong\u003eLongueuil\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eConversely, automatically installing a 12,000 or 18,000 BTU unit “just to be sure” is not necessarily better.\u003c\/p\u003e\n\u003cp\u003eThat is why we examine factors such as the building envelope, windows, solar exposure, room layout, existing heating system, and natural air circulation before recommending the capacity.\u003c\/p\u003e\n\u003ch3\u003eRefrigeration installation: the details that determine the quality of the result\u003c\/h3\u003e\n\u003cp\u003eSenville’s documentation specifies that \u003cstrong\u003eprofessional installation is required to maintain warranty coverage\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor us, this means properly carrying out the piping run, drainage, wall-penetration sealing, refrigerant-circuit evacuation, leak-tightness tests, and commissioning.\u003c\/p\u003e\n\u003cp\u003eThe drain route is particularly important. An indoor unit can cool a room perfectly while causing problems if the condensate does not drain properly. Insufficient slope, an improperly positioned drain, or an installation that unnecessarily requires adding a condensate pump can increase noise and future maintenance.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit’s location also matters. On the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e, in Laval, or in Montreal, we must plan for snow accumulation, drainage during defrost cycles, and future access for servicing.\u003c\/p\u003e\n\u003ch3\u003eElectrical supply: 208\/230 V, MCA 10 A, and maximum protection of 15 A\u003c\/h3\u003e\n\u003cp\u003eThe brochure specifies a \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e power supply, a minimum circuit ampacity of \u003cstrong\u003e10 A\u003c\/strong\u003e, and a maximum fuse of \u003cstrong\u003e15 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt also specifies connection wiring \u003cstrong\u003e14\/4 AWG\u003c\/strong\u003e between the components. This indication should not automatically be confused with the complete sizing of the electrical circuit supplying the equipment. The final wiring, circuit breaker, disconnect switch, and electrical compliance must always be determined according to the actual installation and applicable requirements.\u003c\/p\u003e\n\u003cp\u003eFor homeowners, the practical advantage of a wall-mounted heat pump with this capacity is that its electrical demand remains relatively modest compared with many higher-capacity systems.\u003c\/p\u003e\n\u003ch3\u003eA heat pump particularly suited to which applications?\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE AURA 9,000 BTU is particularly appealing when the area to be treated is relatively small and well defined.\u003c\/p\u003e\n\u003cp\u003eWe would consider it especially for a primary bedroom, office, small living area, studio, compact condo, or a room that remains too hot or too cold despite the main system.\u003c\/p\u003e\n\u003cp\u003eWe would be more cautious when a homeowner wants to heat several separate rooms with a single 9,000 BTU indoor unit. Even when a heat pump has sufficient theoretical capacity, air must be able to circulate physically from one room to another. A closed door or a long corridor can completely change the outcome.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a difference to be confirmed between the AirGreen product page and the Senville brochure\u003c\/h3\u003e\n\u003cp\u003eThere is currently a significant difference between the two sources provided.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product page states a warranty of \u003cstrong\u003e10 years on the compressor, 10 years on parts, and 0 years on labor\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure provided states \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference must be confirmed when requesting a quote or making the purchase, because warranty conditions may depend on the applicable program, the distribution channel, product registration, or the commercial terms in effect. We prefer to clarify this information before installation rather than leave a homeowner to assume that coverage applies automatically.\u003c\/p\u003e\n\u003ch3\u003eWhat about the LogisVert subsidy?\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen page provided with this product currently lists a \u003cstrong\u003e$0 provincial subsidy\u003c\/strong\u003e, with an update dated November 26, 2025.\u003c\/p\u003e\n\u003cp\u003eBecause financial assistance programs may change, we always recommend verifying eligibility when preparing the quote. A heat pump certified as ENERGY STAR or suitable for cold climates is not automatically eligible for all subsidies available in Quebec.\u003c\/p\u003e\n\u003ch3\u003eWhy have this SENVILLE AURA installed by AirGreen?\u003c\/h3\u003e\n\u003cp\u003eOur role is not limited to mounting two units on the wall and connecting the refrigerant lines.\u003c\/p\u003e\n\u003cp\u003eFor an \u003cstrong\u003eHVAC installation in Montreal, Laval, Longueuil, on the North Shore, or on the South Shore\u003c\/strong\u003e, we want the capacity to truly match the room, the indoor unit to be installed in a logical location, the outdoor unit to remain accessible, and the drainage to function properly throughout the cooling season.\u003c\/p\u003e\n\u003cp\u003eWith a model like the \u003cstrong\u003eSENVILLE AURA R454B 9,000 BTU\u003c\/strong\u003e, the technical specifications are already impressive: \u003cstrong\u003e27.4 SEER2\u003c\/strong\u003e, heating operation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, low indoor noise levels, WiFi, inverter modulation, and R-454B refrigerant.\u003c\/p\u003e\n\u003cp\u003eThe difference between a satisfactory installation and a truly successful one ultimately comes down to sizing, configuration, and the execution of the work.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre you thinking of installing a SENVILLE AURA 9,000 BTU in your home, condo, office, or apartment? Contact AirGreen for a quote and to verify whether this capacity is truly suitable for your space. We serve Montreal, Laval, Longueuil, the South Shore, and the North Shore for the sale, installation, and service of wall-mounted heat pumps.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119541661988,"sku":"SENA-09HF-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_AURA_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_cf54df66-8012-4f24-97a2-77d706feab9d.png?v=1789049511"},{"product_id":"thermopompe-murale-senville-aura-r454b-12000-btu-montreal-rive-sud-nord","title":"SENVILLE AURA R454B Wall-Mounted Heat Pump | 12000 BTU | Montréal, South Shore \u0026 North Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 12,000 BTU heat pump designed for Quebec’s climate, with high efficiency and genuine cold-weather heating capacity\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE AURA R454B 12,000 BTU Wall-Mounted Heat Pump\u003c\/strong\u003e is intended for homeowners who want to cool efficiently in the summer while using their heat pump as a heating source during a significant part of the Quebec winter. For a house, condo, duplex, triplex, addition, or open living area in \u003cstrong\u003eMontreal, Laval, Longueuil, on the South Shore or the North Shore\u003c\/strong\u003e, the choice should never be based solely on the “12,000 BTU” figure.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we mainly look at the actual capacity when temperatures drop, the modulation range, noise level, unit placement, drainage, refrigerant piping dimensions, electrical supply, and the quality of commissioning.\u003c\/p\u003e\n\u003cp\u003eThis new generation of the AURA line uses \u003cstrong\u003eR454B refrigerant\u003c\/strong\u003e. It is therefore important not to confuse it with the older Senville AURA 12,000 BTU models using R410A that still appear in some older technical sheets or web pages. For the wall-mounted configuration discussed here, the key references include \u003cstrong\u003eSENA-12HF-OG for the outdoor unit\u003c\/strong\u003e and \u003cstrong\u003eSENA-12HF-IGG for the indoor unit\u003c\/strong\u003e, with \u003cstrong\u003eAHRI reference 215735296\u003c\/strong\u003e. This combination is listed as a 12,000 BTU wall-mounted heat pump certified for cold climates. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThe technical specifications that really matter\u003c\/h3\u003e\n\u003cp\u003eSenville’s technical sheet for the SENA-12HF model lists a \u003cstrong\u003erated cooling capacity of 12,000 BTU\/h\u003c\/strong\u003e and a rated heating capacity of \u003cstrong\u003e13,000 BTU\/h\u003c\/strong\u003e. However, variable-speed technology allows the system to operate across a much wider range: approximately \u003cstrong\u003e3,500 to 13,500 BTU\/h in cooling mode\u003c\/strong\u003e and \u003cstrong\u003e4,000 to 14,500 BTU\/h in heating mode\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation is particularly valuable in Greater Montreal. A heat pump that can reduce its capacity when demand is low helps prevent repeated on-off cycles. In a properly sized room, this promotes a more stable temperature, better humidity control during the summer, and generally quieter operation.\u003c\/p\u003e\n\u003cp\u003eAmong the key data published by Senville:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCooling capacity: 12,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating capacity: 13,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling range: 3,500 to 13,500 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating range: 4,000 to 14,500 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 25.4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2 listed on the manufacturer’s data sheet: 13.5\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-4: 13.7\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-5: 9.6\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMinimum outdoor temperature specified for heating: -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMinimum circuit ampacity: 12 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum protection: 15 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant charge: 40.92 oz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant precharge: up to 25 ft\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSpecified interconnection wiring: 14\/4 AWG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant piping: 1\/4 in liquid line and 3\/8 in suction line\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSenville specifically confirms the \u003cstrong\u003e1\/4 in × 3\/8 in\u003c\/strong\u003e combination for the SENA-12HF-IGG indoor unit. This is an essential detail when replacing an existing heat pump and the owner wants to reuse piping already inside the walls: we always check the pipe diameters, condition, length, and compatibility before confirming that they can be retained. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e25.4 SEER2: what this figure means in a real installation\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003eSEER2 of 25.4\u003c\/strong\u003e places this Senville AURA among the highest-efficiency wall-mounted systems for cooling. The manufacturer’s brochure also presents it as \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e and as a heat pump suitable for heating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis does not mean that a heat pump will consume exactly the same amount of electricity in two different homes.\u003c\/p\u003e\n\u003cp\u003eIn Montreal, a unit installed in the open living room of a recently insulated bungalow will not operate the same way as the same unit installed in a century-old plex in Rosemont, Verdun, or Le Plateau, with less-insulated walls, large windows, and air infiltration.\u003c\/p\u003e\n\u003cp\u003eActual performance depends in particular on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe building’s heating load;\u003c\/li\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003eairtightness;\u003c\/li\u003e\n\u003cli\u003ethe amount of glazing;\u003c\/li\u003e\n\u003cli\u003esun exposure;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003ethe number of floors;\u003c\/li\u003e\n\u003cli\u003eair circulation between rooms;\u003c\/li\u003e\n\u003cli\u003ethe temperature requested by the occupants;\u003c\/li\u003e\n\u003cli\u003eand especially the \u003cstrong\u003esizing of the heat pump\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThat is why we consider BTUs a starting point, never the sole selection criterion.\u003c\/p\u003e\n\u003ch3\u003eIs it really a heat pump for -30 °C?\u003c\/h3\u003e\n\u003cp\u003eSenville specifies a minimum outdoor operating temperature in heating mode of \u003cstrong\u003e-30 °C\u003c\/strong\u003e, or -22 °F. The technical documentation also mentions cold-climate certification. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, it is important to understand the difference between “operating at -30 °C” and “maintaining its full rated capacity at -30 °C.”\u003c\/p\u003e\n\u003cp\u003eA heat pump generally loses some of its capacity and efficiency as the outdoor temperature drops. The owner must therefore consider not only the advertised minimum temperature, but also the \u003cstrong\u003eheating capacity available in cold weather\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor the \u003cstrong\u003eSENA-12HF-OG + SENA-12HF-IGG\u003c\/strong\u003e wall-mounted pairing, certification data indicates, among other things, a heating capacity of \u003cstrong\u003e11,500 BTU\/h at approximately -15 °C\u003c\/strong\u003e and a COP of approximately \u003cstrong\u003e1.8 under this test condition\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a Montreal, Laval, or Longueuil home, this means that a proper assessment must also consider the point at which the building’s heat loss exceeds what the heat pump can provide. Existing electric heating may then remain useful as supplemental heat during the coldest periods.\u003c\/p\u003e\n\u003ch3\u003eIs a 12,000 BTU heat pump suitable for 500 or 750 sq. ft.?\u003c\/h3\u003e\n\u003cp\u003eSenville describes the model as being suitable for spaces of approximately \u003cstrong\u003e500 to 750 sq. ft.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe use this information as a general guideline, but not as a sizing method.\u003c\/p\u003e\n\u003cp\u003eTwo 650 sq. ft. spaces can have completely different needs. Let’s consider two typical examples:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCase A:\u003c\/strong\u003e a recent condo in Brossard, with 8-ft ceilings, high-performance windows, good insulation, and an open-concept layout.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCase B:\u003c\/strong\u003e a 650 sq. ft. floor in an older Montreal duplex, with high ceilings, masonry walls, numerous windows, and an open staircase.\u003c\/p\u003e\n\u003cp\u003eThe Senville AURA 12,000 BTU could be very well suited to the first case, whereas further analysis would be needed for the second.\u003c\/p\u003e\n\u003cp\u003eAn oversized unit is not automatically better. In cooling mode, it can quickly reach the desired temperature without running long enough to dehumidify properly. Conversely, an undersized unit may run continuously during a cold snap without being able to maintain the setpoint.\u003c\/p\u003e\n\u003ch3\u003eTruly quiet indoor operation\u003c\/h3\u003e\n\u003cp\u003eSenville publishes four indoor sound levels corresponding to the different fan speeds:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e24 dB(A) at low speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e34 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e40 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e47 dB(A) in Turbo mode\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe corresponding airflow ranges from \u003cstrong\u003e240 to 530 CFM\u003c\/strong\u003e. The outdoor unit is rated at approximately \u003cstrong\u003e57 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese figures explain why this type of unit may be suitable for a bedroom, office, living room, or workspace. However, the installation has a major influence on how the noise is perceived.\u003c\/p\u003e\n\u003cp\u003eAn outdoor unit installed directly on a lightweight structure without vibration control can transmit more noise into the building than a properly supported unit. In a Montreal duplex or a Longueuil condo, we also pay attention to nearby neighbors’ windows, balconies and bedrooms.\u003c\/p\u003e\n\u003ch3\u003eDimensions: check the space before ordering\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately \u003cstrong\u003e33.4 in wide × 9.18 in deep × 11.76 in high\u003c\/strong\u003e and weighs approximately 24.25 lb.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures approximately \u003cstrong\u003e30.31 × 12.20 × 21.65 in\u003c\/strong\u003e and weighs approximately 82.67 lb. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese dimensions are important in installations where space is limited: above a door, in a stairwell, between two windows, under a balcony or in a narrow side passage.\u003c\/p\u003e\n\u003cp\u003eWe are not just looking for a place where the unit “fits.” We must preserve the clearances needed for airflow, maintenance and future access to the components.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi, app and Alexa control\u003c\/h3\u003e\n\u003cp\u003eThe Senville AURA is designed to integrate with a smart home. The manufacturer advertises control via an app and \u003cstrong\u003eAlexa\u003c\/strong\u003e, allowing users in particular to change settings and create schedules remotely. The product documentation also mentions an \u003cstrong\u003eAlexa USB kit\u003c\/strong\u003e among the included items. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a homeowner who leaves home for several hours a day, this feature may be more useful than a mere gimmick. For example, it can slightly reduce the temperature when the occupants are away and adjust the setpoint before they return.\u003c\/p\u003e\n\u003cp\u003eThe unit also includes \u003cstrong\u003eself-diagnostic and leak detection\u003c\/strong\u003e functions, designed to facilitate the identification of certain irregularities and system maintenance. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eAn AirGreen installation where every detail matters just as much as the heat pump itself\u003c\/h2\u003e\n\u003cp\u003eAn excellent heat pump that is poorly installed can deliver mediocre results. A properly sized heat pump commissioned under suitable conditions is much more likely to maintain its performance, acoustic comfort and reliability.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, our \u003cstrong\u003ewall-mounted heat pump installations in Montreal, Laval, Longueuil, the North Shore and the South Shore\u003c\/strong\u003e therefore begin with an analysis of the building rather than drilling into the wall.\u003c\/p\u003e\n\u003ch3\u003eWhat we check before choosing the indoor location\u003c\/h3\u003e\n\u003cp\u003eAir must be able to leave the unit and circulate toward the area we actually want to heat or cool.\u003c\/p\u003e\n\u003cp\u003eWe avoid whenever possible:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eobstacles directly in front of the air outlet;\u003c\/li\u003e\n\u003cli\u003elocations where a tall piece of furniture will block the airflow;\u003c\/li\u003e\n\u003cli\u003ewall sections incompatible with the required clearances;\u003c\/li\u003e\n\u003cli\u003edrains that are difficult to route properly;\u003c\/li\u003e\n\u003cli\u003einstallations where future access to the filters would become difficult.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn an open-plan area, a difference of a few feet in the evaporator’s positioning can significantly change how air reaches the hallway, kitchen, or staircase.\u003c\/p\u003e\n\u003ch3\u003eAn AirGreen experience on the South Shore that illustrates this point well\u003c\/h3\u003e\n\u003cp\u003eWe have already documented the installation of a \u003cstrong\u003eprevious-generation Senville AURA 12,000 BTU\u003c\/strong\u003e in a residence on the South Shore. At that time, it was an R410A model, not the current R454B generation; the two versions must therefore not be confused from a technical standpoint.\u003c\/p\u003e\n\u003cp\u003eThe challenge was nevertheless highly revealing of the installation work involved: the indoor unit had to be placed above a door leading to a narrow staircase. Our team secured access, used a laser level to position the unit, discreetly arranged the routing of the lines, and, above all, properly planned the condensate drainage.\u003c\/p\u003e\n\u003cp\u003eOnce the system was commissioned, the client noticed a significant improvement in comfort in this area, which had previously remained cold, with air spreading toward the staircase and adjacent spaces. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe lesson remains exactly the same with the new AURA R454B: \u003cstrong\u003ethe indoor unit’s location is part of the system sizing\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eOutdoor unit installation: Quebec snow changes the rules\u003c\/h3\u003e\n\u003cp\u003eIn Boucherville, Longueuil, Terrebonne, Laval, or Montreal, we need to think about January when installing a heat pump in July.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit must be protected against:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003esnow accumulation;\u003c\/li\u003e\n\u003cli\u003ewater from a roof;\u003c\/li\u003e\n\u003cli\u003eice;\u003c\/li\u003e\n\u003cli\u003eleaves and debris;\u003c\/li\u003e\n\u003cli\u003eobstructions around the heat exchanger;\u003c\/li\u003e\n\u003cli\u003evibrations transmitted to the building.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDuring another Senville project documented by AirGreen in Montreal’s Le Sud-Ouest borough, the outdoor unit’s placement had been planned with low windows, a balcony, runoff, vibrations, and the available yard space in mind. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is exactly the kind of detail we assess before deciding between a wall-mounted installation, a base-mounted installation, or another suitable structure.\u003c\/p\u003e\n\u003ch3\u003eR454B: why professional commissioning is particularly important\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eR454B\u003c\/strong\u003e is part of the new generation of refrigerants used in several recent HVAC systems. It is classified \u003cstrong\u003eA2L\u003c\/strong\u003e, which entails procedures and tools adapted to refrigeration work.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, our work on R454B systems places particular emphasis on circuit tightness, moisture removal, evacuation, connections, and compliance with the prescribed charge. We already apply these methods on our R454B installations in Greater Montreal and Montérégie. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Senville AURA 12,000 BTU is \u003cstrong\u003epre-charged for a length of up to 25 ft\u003c\/strong\u003e. Senville specifies that an installation with a 50 ft kit requires additional refrigerant to be added on site by the installer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSimply adding longer piping without adjusting the system when an adjustment is required may compromise its operation and efficiency.\u003c\/p\u003e\n\u003ch3\u003eElectrical supply: 230 V, MCA 12 A, and maximum protection 15 A\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer’s specifications indicate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epower supply \u003cstrong\u003e208\/230 V\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eminimum circuit ampacity of \u003cstrong\u003e12 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emaximum protection of \u003cstrong\u003e15 A\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis information is useful for planning the project, but it does not replace verification of the electrical panel and the requirements applicable to the actual installation. In particular, we check the available space in the panel, the planned circuit, and the wiring route before finalizing the work.\u003c\/p\u003e\n\u003ch3\u003eProfessional installation is tied to the warranty\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer clearly states that \u003cstrong\u003eprofessional installation is required to maintain warranty coverage\u003c\/strong\u003e. The documentation provided with the product states \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe warranty conditions applicable to the project should always be confirmed on the quote, since warranty programs, registration, and additional protections may change.\u003c\/p\u003e\n\u003cp\u003eThis is another reason to keep the model and serial numbers, the detailed invoice, and the commissioning documents.\u003c\/p\u003e\n\u003ch3\u003eSenville AURA 12,000 BTU Maintenance\u003c\/h3\u003e\n\u003cp\u003eA wall-mounted heat pump requires relatively little maintenance, but “little” does not mean “none.”\u003c\/p\u003e\n\u003cp\u003eWe particularly recommend:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eclean the indoor unit’s filters regularly;\u003c\/li\u003e\n\u003cli\u003ekeep the outdoor unit’s air inlet and outlet clear;\u003c\/li\u003e\n\u003cli\u003emonitor condensate drainage;\u003c\/li\u003e\n\u003cli\u003eavoid the accumulation of vegetation and debris around the condenser;\u003c\/li\u003e\n\u003cli\u003ehave the system inspected when an unusual noise, reduced capacity, or error appears;\u003c\/li\u003e\n\u003cli\u003ehave the evaporator cleaned more thoroughly when buildup is visible.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eA heavily loaded filter reduces airflow. A partially clogged drain can cause water problems. An outdoor unit surrounded by snow or leaves operates under poor conditions. These are often simple problems at first that become costly when ignored.\u003c\/p\u003e\n\u003ch3\u003eLogisVert: never automatically apply another model’s subsidy\u003c\/h3\u003e\n\u003cp\u003eFinancial incentives must be verified based on the \u003cstrong\u003eexact unit pairing\u003c\/strong\u003e, AHRI number, installation date, and the conditions of the program in effect.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENA-12HF-OG + SENA-12HF-IGG, AHRI 215735296\u003c\/strong\u003e pairing appeared on a Hydro-Québec list with a capacity used for the program calculation of \u003cstrong\u003e9,800 BTU\/h at -8 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe LogisVert program currently displays incentives calculated based on eligible capacity at -8 °C. Hydro-Québec indicates, among other things, an amount of up to \u003cstrong\u003e$140 per 1,000 BTU\/h\u003c\/strong\u003e under certain residential options when all requirements are met. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor certain \u003cstrong\u003eeligible multi-unit residential buildings\u003c\/strong\u003e, an enhancement available for installations completed as of June 15, 2026, may increase the incentive to \u003cstrong\u003e$220 per 1,000 BTU\/h at -8 °C\u003c\/strong\u003e for an ENERGY STAR-certified cold-climate mini-split heat pump, subject to all program criteria. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAs a mathematical example only, an eligible capacity of 9,800 BTU\/h would correspond to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 372 $\u003c\/strong\u003e at a rate of $140 per 1,000 BTU\/h;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 156 $\u003c\/strong\u003e at a rate of $220 per 1,000 BTU\/h.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese amounts should not be considered a subsidy promise. At AirGreen, we verify the applicable eligibility at the time of the project rather than automatically transferring the amount displayed for a different 9,000, 12,000, or 18,000 BTU unit.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for this Senville AURA?\u003c\/h3\u003e\n\u003cp\u003eThe product is only one part of the project.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we install and maintain HVAC systems throughout \u003cstrong\u003eGreater Montreal, Montreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e. For a Senville AURA 12,000 BTU, our work includes analyzing the building’s actual configuration, choosing the location, preparing the piping route, drainage, refrigerant connections, evacuation, electrical checks, and operational testing.\u003c\/p\u003e\n\u003cp\u003eWe also pay attention to what the owner will see after we leave: the line sets, the outdoor support, the wall sealing, the unit’s alignment, and access for maintenance.\u003c\/p\u003e\n\u003cp\u003eA heat pump is installed to operate for years. A few minutes saved during installation can become hours of additional work during future maintenance. We therefore prefer to consider mechanical access from day one.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions About the SENVILLE AURA R454B 12,000 BTU\u003c\/h3\u003e\n\u003ch4\u003eCan it heat down to -30 °C?\u003c\/h4\u003e\n\u003cp\u003eYes, Senville advertises heating operation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e. However, this does not mean that the unit delivers exactly 12,000 or 13,000 BTU at all temperatures. Available capacity decreases or varies according to conditions.\u003c\/p\u003e\n\u003ch4\u003eIs Wi-Fi available?\u003c\/h4\u003e\n\u003cp\u003eYes. Senville documentation provides smart control through an app and Alexa and mentions an Alexa USB kit included with the system.\u003c\/p\u003e\n\u003ch4\u003eWhat piping should be used?\u003c\/h4\u003e\n\u003cp\u003eFor the SENA-12HF-IGG wall-mounted combination, Senville specifies \u003cstrong\u003e1\/4 in. for the liquid line and 3\/8 in. for the suction line\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eWhat circuit breaker is required?\u003c\/h4\u003e\n\u003cp\u003eThe documentation specifies a \u003cstrong\u003eminimum ampacity of 12 A and maximum overcurrent protection of 15 A\u003c\/strong\u003e, on a 208\/230 V supply. However, the final electrical installation must be adapted to the building and carried out in accordance with applicable requirements.\u003c\/p\u003e\n\u003ch4\u003eIs it suitable for a bedroom?\u003c\/h4\u003e\n\u003cp\u003eIts indoor sound level drops to approximately \u003cstrong\u003e24 dB(A)\u003c\/strong\u003e at low speed. Unit placement and the selected fan speed remain important for nighttime comfort.\u003c\/p\u003e\n\u003ch4\u003eWhat area can it heat?\u003c\/h4\u003e\n\u003cp\u003eSenville provides a general indication of \u003cstrong\u003e500 to 750 sq. ft.\u003c\/strong\u003e, but we recommend sizing the heat pump according to actual heat losses and gains rather than using area alone.\u003c\/p\u003e\n\u003ch4\u003eIs it the same 12,000 BTU Senville AURA as the older R410A versions?\u003c\/h4\u003e\n\u003cp\u003eNo. The AURA line has been available for several years, and different generations are still on the market. This page concerns the \u003cstrong\u003enew R454B configuration\u003c\/strong\u003e. The exact indoor and outdoor unit numbers must be verified before comparing efficiency, warranty, or rebates.\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen quote for your Senville AURA R454B\u003c\/h3\u003e\n\u003cp\u003eAre you considering a \u003cstrong\u003eSENVILLE AURA R454B 12,000 BTU Wall-Mounted Heat Pump\u003c\/strong\u003e for a house, condo, plex, or commercial space in \u003cstrong\u003eMontréal, Laval, Longueuil, on the South Shore or North Shore\u003c\/strong\u003e?\u003c\/p\u003e\n\u003cp\u003eContact AirGreen. We can verify the appropriate capacity, indoor and outdoor placement, piping, electrical supply, installation requirements, and eligibility for financial incentives before finalizing your project.\u003c\/p\u003e\n\u003cp\u003eA good heat pump deserves an HVAC installation designed for the building in which it will actually operate.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119541727524,"sku":"SENA-12HF-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_AURA_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_567987cf-a764-4d5d-bfec-8a7314b0dbfc.png?v=1789049514"},{"product_id":"thermopompe-murale-senville-aura-r454b-15000-btu-montreal-rive-sud-nord","title":"SENVILLE AURA R454B Wall-Mounted Heat Pump | 15000 BTU | Montréal, South Shore \u0026 North Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 15,000 BTU wall-mounted heat pump that fits between the 12,000 and 18,000 BTU sizes\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e15,000 BTU SENVILLE AURA R454B\u003c\/strong\u003e occupies a particularly interesting position in the wall-mounted heat pump lineup. It is intended for homeowners who need more capacity than a 12,000 BTU unit without necessarily moving up to an 18,000 BTU unit that could be oversized for the room.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, this is exactly the kind of situation we encounter in Greater Montreal: a living room open to the dining room, a relatively open condo floor, a medium-sized commercial space, or a family area where the thermal load slightly exceeds what a small wall-mounted system can comfortably handle.\u003c\/p\u003e\n\u003cp\u003eFor this new-generation AURA, Senville combines a nominal capacity of \u003cstrong\u003e15,000 BTU\u003c\/strong\u003e, \u003cstrong\u003eR454B\u003c\/strong\u003e refrigerant, variable-speed technology, \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certification, Alexa compatibility, and a stated heating operating range down to \u003cstrong\u003e-25 °C\u003c\/strong\u003e. The supplied documentation also presents the unit as a cold-climate heat pump and recommends professional installation to preserve warranty coverage. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe certified combination consists of the \u003cstrong\u003eSENA-15HF-OG\u003c\/strong\u003e outdoor unit and the \u003cstrong\u003eSENA-15HF-IGG\u003c\/strong\u003e indoor unit, with AHRI reference number \u003cstrong\u003e217603532\u003c\/strong\u003e. The active AHRI certification confirms, among other things, a cooling capacity of 15,000 BTU\/h, a \u003cstrong\u003eSEER2 of 23.5\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 11.7\u003c\/strong\u003e, and an \u003cstrong\u003eHSPF2 Region IV of 9.9\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThe technical specifications that really matter\u003c\/h3\u003e\n\u003cp\u003eHere are the main technical specifications of the SENVILLE AURA 15,000 BTU:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eFeature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSENVILLE AURA 15,000 BTU\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor unit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSENA-15HF-OG\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndoor unit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSENA-15HF-IGG\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAHRI reference\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e217603532\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal cooling capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e15,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e8,000 to 15,200 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal heating capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e15,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3,600 to 16,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSEER2\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e23,5\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEER2\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e11,7\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2 Region IV\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e9,9\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2 Region V\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e7,5\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStated nominal COP\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3,3\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eR454B\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMCA\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e15 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum protection\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e15 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStated minimum heating temperature\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e-25 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndoor airflow\u003c\/td\u003e\n\u003ctd\u003eup to \u003cstrong\u003e450.3 CFM\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDehumidification\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1.7 L\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor sound level\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e57 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSmart control\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eApp \/ Alexa\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer’s stated warranty\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e10-year compressor \/ 5-year parts\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThese values are particularly important because they make it possible to assess the unit based on more than just the “15,000 BTU” printed on the box. Senville’s documentation confirms, in particular, modulation ranges of \u003cstrong\u003e8,000 to 15,200 BTU\/h in cooling\u003c\/strong\u003e and \u003cstrong\u003e3,600 to 16,000 BTU\/h in heating\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy modulation is important in a condo, plex, or house\u003c\/h3\u003e\n\u003cp\u003eA variable-speed heat pump is not designed to operate continuously at maximum capacity. It adjusts its operation according to demand.\u003c\/p\u003e\n\u003cp\u003eIn an open-concept area that requires substantial cooling at 4 p.m. on a hot July day, the SENVILLE AURA can increase its output. Later, when the indoor temperature stabilizes, it can reduce its operating rate.\u003c\/p\u003e\n\u003cp\u003eThis modulation helps limit:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003erepeated starts and stops;\u003c\/li\u003e\n\u003cli\u003esignificant temperature fluctuations;\u003c\/li\u003e\n\u003cli\u003eunnecessary noise;\u003c\/li\u003e\n\u003cli\u003econsumption peaks;\u003c\/li\u003e\n\u003cli\u003ethe comfort problems associated with a significantly oversized unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThat is one reason why, at \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we do not automatically choose an 18,000 or 24,000 BTU heat pump simply because higher capacity seems reassuring on paper.\u003c\/p\u003e\n\u003ch3\u003e15,000 BTU: what area does it cover?\u003c\/h3\u003e\n\u003cp\u003eSenville indicates a reference area of approximately \u003cstrong\u003e600 to 800 sq. ft.\u003c\/strong\u003e for this unit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis value is a good starting point, but we never recommend sizing a \u003cstrong\u003ewall-mounted heat pump in Montreal, Laval, Longueuil, on the North Shore, or on the South Shore\u003c\/strong\u003e based solely on the number of square feet.\u003c\/p\u003e\n\u003cp\u003eTwo 700 sq. ft. spaces can have completely different needs.\u003c\/p\u003e\n\u003cp\u003eA newer condo in Boucherville with good insulation, few sun-exposed windows, and a standard ceiling may require much less capacity than the top floor of a Montreal plex with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003elarge southwest-facing windows;\u003c\/li\u003e\n\u003cli\u003ea roof directly above the dwelling;\u003c\/li\u003e\n\u003cli\u003eolder insulation;\u003c\/li\u003e\n\u003cli\u003ea high ceiling;\u003c\/li\u003e\n\u003cli\u003ean open-concept kitchen;\u003c\/li\u003e\n\u003cli\u003eseveral occupants;\u003c\/li\u003e\n\u003cli\u003esignificant solar gains in the afternoon.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \u003cstrong\u003e15,000 BTU\u003c\/strong\u003e becomes particularly appealing when the analysis genuinely falls between the usual 12,000 and 18,000 BTU categories.\u003c\/p\u003e\n\u003ch3\u003eA typical scenario we encounter at AirGreen\u003c\/h3\u003e\n\u003cp\u003eLet’s take a common configuration in Greater Montreal: approximately 650 to 750 sq. ft. of relatively open space comprising the living room, kitchen, and dining room, with a hallway leading to the bedrooms.\u003c\/p\u003e\n\u003cp\u003eSimply installing a larger unit does not guarantee that air will reach the bedrooms more effectively. In this type of project, the \u003cstrong\u003epositioning of the indoor unit\u003c\/strong\u003e can be just as important as its capacity.\u003c\/p\u003e\n\u003cp\u003eWe are particularly looking to achieve:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eadequate clearance in front of the heat pump;\u003c\/li\u003e\n\u003cli\u003ean air stream that travels through as much of the space as possible;\u003c\/li\u003e\n\u003cli\u003eas few obstacles as possible in front of the unit;\u003c\/li\u003e\n\u003cli\u003ereliable condensate drainage;\u003c\/li\u003e\n\u003cli\u003ea logical piping route;\u003c\/li\u003e\n\u003cli\u003ean outdoor location that facilitates maintenance;\u003c\/li\u003e\n\u003cli\u003esufficient space around the outdoor unit to preserve its heat exchange.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA well-positioned 15,000 BTU SENVILLE can be much more suitable than an 18,000 BTU unit installed where air circulation is poor.\u003c\/p\u003e\n\u003ch3\u003eWinter performance: look at the available BTUs as the temperature drops\u003c\/h3\u003e\n\u003cp\u003eA statement such as “heating down to -25 °C” indicates an operating limit, but it does not necessarily mean that the heat pump delivers its \u003cstrong\u003e15,000 nominal BTU at -25 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis is an important distinction for Quebec’s climate.\u003c\/p\u003e\n\u003cp\u003eThe certification data available for the \u003cstrong\u003eSENA-15HF-OG \/ SENA-15HF-IGG\u003c\/strong\u003e combination indicates approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e15,000 BTU\/h at 47 °F\u003c\/strong\u003e, or approximately 8 °C;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12,000 BTU\/h at 17 °F\u003c\/strong\u003e, or approximately -8 °C;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e11,500 BTU\/h at 5 °F\u003c\/strong\u003e, or approximately -15 °C;\u003c\/li\u003e\n\u003cli\u003ea \u003cstrong\u003eCOP of 1.80 at 5 °F (-15 °C)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe system is classified as an \u003cstrong\u003eENERGY STAR model for cold climates\u003c\/strong\u003e in the corresponding certification data. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis provides a much more useful understanding of the appliance. At approximately \u003cstrong\u003e-15 °C\u003c\/strong\u003e, the heat pump still retains significant heating capacity, but this capacity is no longer identical to its nominal value of 15,000 BTU.\u003c\/p\u003e\n\u003cp\u003eIn a residence in Montreal or Laval, we must therefore consider the existing heating system, the building’s heat losses, and the outdoor design temperature before deciding what proportion of the heating can be entrusted to the heat pump.\u003c\/p\u003e\n\u003ch3\u003eSEER2 23.5: highly appealing cooling efficiency\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSEER2 of 23.5\u003c\/strong\u003e places this 15,000 BTU AURA in an efficient category for a wall-mounted heat pump.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSEER2\u003c\/strong\u003e represents seasonal cooling efficiency. The higher this figure, the less electricity the appliance generally needs to consume to provide a given amount of cooling under the test conditions specified by the standard.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eEER2 of 11.7\u003c\/strong\u003e complements this figure by indicating efficiency under a specific operating condition.\u003c\/p\u003e\n\u003cp\u003eFor the homeowner, actual savings will obviously depend on many factors: temperature setting, insulation, sun exposure, length of use, climate, the old appliance being replaced, and occupancy habits.\u003c\/p\u003e\n\u003ch3\u003eAn indoor unit capable of operating very quietly\u003c\/h3\u003e\n\u003cp\u003eFor an installation in a living room, office, or near a bedroom, the noise level deserves as much attention as the SEER2.\u003c\/p\u003e\n\u003cp\u003eAccording to the technical specifications, the indoor unit has advertised levels of:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e58.5 \/ 36.5 \/ 32.5 \/ 21 \/ 18 dB(A)\u003c\/strong\u003e according to the different fan speeds.\u003c\/p\u003e\n\u003cp\u003eThe stated minimum level reaches \u003cstrong\u003e18 dB(A)\u003c\/strong\u003e. The outdoor unit is rated at \u003cstrong\u003e57 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn practice, the location of the outdoor compressor remains important. On a balcony, near a bedroom, between two buildings, or near the neighboring property, we consider clearances, vibrations, and sound reflection before choosing the installation point.\u003c\/p\u003e\n\u003ch3\u003eDimensions to plan for before installation\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately \u003cstrong\u003e33.39 in wide × 9.17 in deep × 11.81 in high\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures approximately \u003cstrong\u003e30.12 × 11.93 × 21.85 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThese dimensions are useful when a homeowner wants to place the outdoor unit under a window, on a porch, or in a narrow side passage. They also make it possible to determine in advance whether a wall-mounted installation, a support bracket, or a ground base is the best solution.\u003c\/p\u003e\n\u003cp\u003eHowever, the appliance dimensions alone should not be used for planning: service clearances and airflow requirements must also be respected.\u003c\/p\u003e\n\u003ch3\u003eR454B and comes precharged with refrigerant\u003c\/h3\u003e\n\u003cp\u003eThis version of the SENVILLE AURA uses \u003cstrong\u003eR454B\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe documentation indicates a charge of \u003cstrong\u003e35.27 oz\u003c\/strong\u003e and a factory charge corresponding to approximately \u003cstrong\u003e24.6 ft or 7.5 m of piping\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville also specifies that an installation using a \u003cstrong\u003e50 ft\u003c\/strong\u003e kit requires an on-site adjustment to the refrigerant charge. Professional installation is required to achieve the expected operation and maintain the warranty. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, the length of the refrigerant line set is therefore not an administrative detail. We verify it before installation, especially when the indoor unit and outdoor unit need to be installed on different façades or several floors apart.\u003c\/p\u003e\n\u003ch3\u003eElectrical supply: 208\/230 V and a 15 A circuit according to the data sheet\u003c\/h3\u003e\n\u003cp\u003eThe SENA-15HF operates on a \u003cstrong\u003e208\/230 V single-phase, 60 Hz\u003c\/strong\u003e power supply.\u003c\/p\u003e\n\u003cp\u003eThe Senville data sheet states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVoltage range: \u003cstrong\u003e187 to 253 V\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eMinimum circuit ampacity: \u003cstrong\u003e15 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eMaximum protection: \u003cstrong\u003e15 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eSpecified connection wiring: \u003cstrong\u003e14# × 4\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDuring an installation, we still need to inspect the existing electrical panel, the circuit routing, and the regulatory requirements applicable to the project. A value listed on a technical data sheet does not replace an actual inspection of the electrical installation.\u003c\/p\u003e\n\u003ch3\u003eApp and Alexa control\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE AURA 15,000 BTU documentation indicates \u003cstrong\u003eAlexa\u003c\/strong\u003e compatibility and includes an \u003cstrong\u003eAlexa USB module\u003c\/strong\u003e, in addition to the wireless remote control. The app-based control allows, among other things, settings to be changed remotely and schedules to be programmed. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a primary residence, this makes daily scheduling easier. For a cottage, office, or intermittently used dwelling, remote control can be even more relevant.\u003c\/p\u003e\n\u003ch3\u003eDiagnostics and leak detection\u003c\/h3\u003e\n\u003cp\u003eThe AURA series also features an \u003cstrong\u003eintegrated diagnostic and leak detection system\u003c\/strong\u003e. The goal is to allow the system to report certain anomalies and facilitate intervention when the unit is no longer operating normally. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis function obviously does not replace maintenance. A clogged filter, a blocked outdoor coil, a poorly maintained drain, or a unit exposed to poor installation conditions can still reduce performance.\u003c\/p\u003e\n\u003ch2\u003eAirGreen installation: the difference between buying a heat pump and obtaining a coherent HVAC system\u003c\/h2\u003e\n\u003ch3\u003eThe location is chosen before drilling\u003c\/h3\u003e\n\u003cp\u003eFor us, installing a \u003cstrong\u003ewall-mounted heat pump\u003c\/strong\u003e starts with the building, not the drill.\u003c\/p\u003e\n\u003cp\u003eWe check in particular:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe area and layout of the zone;\u003c\/li\u003e\n\u003cli\u003eair circulation between rooms;\u003c\/li\u003e\n\u003cli\u003esun exposure;\u003c\/li\u003e\n\u003cli\u003ethe possible placement of the indoor unit;\u003c\/li\u003e\n\u003cli\u003econdensate drainage;\u003c\/li\u003e\n\u003cli\u003ethe refrigerant line route;\u003c\/li\u003e\n\u003cli\u003ethe outdoor unit location;\u003c\/li\u003e\n\u003cli\u003ethe electrical supply;\u003c\/li\u003e\n\u003cli\u003efuture access for cleaning and servicing.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis preparation reduces the risk of ending up with a technically functional heat pump that is poorly positioned or difficult to service.\u003c\/p\u003e\n\u003ch3\u003e12,000, 15,000, or 18,000 BTU: it should not be chosen at random\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e15,000 BTU\u003c\/strong\u003e size allows for more precise selection.\u003c\/p\u003e\n\u003cp\u003eA 12,000 BTU heat pump may be sufficient in a well-insulated space, whereas a slightly more demanding space may justify upgrading to 15,000 BTU. Conversely, choosing 18,000 BTU solely to have “some extra capacity” is not always desirable.\u003c\/p\u003e\n\u003cp\u003eAn oversized unit can reach its setpoint very quickly and reduce its periods of stable operation. In cooling mode, this can also affect dehumidification and comfort distribution.\u003c\/p\u003e\n\u003cp\u003eWe therefore prefer to select the capacity that matches the building rather than the highest capacity available.\u003c\/p\u003e\n\u003ch3\u003eWarranty: verify the exact terms of the installed version\u003c\/h3\u003e\n\u003cp\u003eThe Senville documentation provided for this \u003cstrong\u003eSENA-15HF\u003c\/strong\u003e indicates a warranty of \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSince warranty programs, registration requirements, and additional protections may vary, we confirm the applicable conditions when preparing the quote and supplying the equipment.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR, cold climate, and LogisVert\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENA-15HF-OG \/ SENA-15HF-IGG\u003c\/strong\u003e combination is ENERGY STAR certified and appears in the certification data as a cold-climate heat pump. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a \u003cstrong\u003eHydro-Québec LogisVert grant\u003c\/strong\u003e, however, you must always check the rules and current list at the time of installation. Hydro-Québec specifies that eligible models and financial assistance amounts may change and that, for installations completed since November 26, 2025, a heat pump must, among other requirements, be ENERGY STAR certified to qualify. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore prefer to confirm the actual eligibility of the AHRI number and exact combination rather than display an amount that may no longer correspond to the conditions applicable on the installation date.\u003c\/p\u003e\n\u003ch3\u003eWho would find this SENVILLE AURA 15,000 BTU particularly appealing?\u003c\/h3\u003e\n\u003cp\u003eWe consider this capacity when a project involves, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea medium-sized open-concept area;\u003c\/li\u003e\n\u003cli\u003ea need slightly greater than what a 12,000 BTU unit can comfortably cover;\u003c\/li\u003e\n\u003cli\u003ea goal of \u003cstrong\u003eheating and cooling with the same appliance\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea need for operation in low outdoor temperatures;\u003c\/li\u003e\n\u003cli\u003ea preference for a high-efficiency heat pump;\u003c\/li\u003e\n\u003cli\u003ean interest in remote control;\u003c\/li\u003e\n\u003cli\u003ea location where a low indoor noise level is important.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt may be suitable for various residential and light commercial projects in \u003cstrong\u003eMontréal, Laval, Longueuil, Boucherville, the South Shore, the North Shore, and the Montérégie\u003c\/strong\u003e, provided that its capacity truly matches the building’s heating and cooling loads.\u003c\/p\u003e\n\u003ch3\u003eHave the SENVILLE AURA 15,000 BTU installed by AirGreen\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Climatisation \u0026amp; Chauffage\u003c\/strong\u003e, we can help you determine whether the \u003cstrong\u003eSENVILLE AURA R454B 15,000 BTU Wall-Mounted Heat Pump\u003c\/strong\u003e is suitable for your space, determine the best locations for the units, plan the piping and drainage, and prepare a complete HVAC installation.\u003c\/p\u003e\n\u003cp\u003eTo obtain a price, check eligibility for available programs, or compare this unit with the 12,000 and 18,000 BTU models, contact us at \u003cstrong\u003e514-316-2973\u003c\/strong\u003e or \u003cstrong\u003e\u003ca class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003esales@airgreen.ca\u003c\/a\u003e\u003c\/strong\u003e. We serve \u003cstrong\u003eMontréal, Laval, Longueuil, the South Shore, and the North Shore\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119541760292,"sku":"SENA-15HF-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_AURA_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_595d2dfa-ff0e-43b8-86a9-e8f6d4047609.png?v=1789049523"},{"product_id":"thermopompe-murale-senville-aura-r454b-18000-btu-montreal-rive-sud-nord","title":"SENVILLE AURA R454B Wall-Mounted Heat Pump | 18000 BTU | Montréal, South Shore \u0026 North Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eAn 18,000 BTU wall-mounted heat pump designed for the Quebec climate, with genuine modulation capacity\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE AURA R454B 18,000 BTU\u003c\/strong\u003e stands out as an appealing wall-mounted heat pump for homeowners seeking good cooling capacity, low-temperature heating, modulation suited to variable loads, and integrated WiFi control. For a house, condo, open-concept floor, office, or medium-sized commercial space in \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e, this unit should primarily be evaluated based on three factors: the building’s actual heating load, its performance as outdoor temperatures drop, and the quality of its installation.\u003c\/p\u003e\n\u003cp\u003eThe configuration offered by AirGreen is identified by the models \u003cstrong\u003eSENA\/18HF\/OQ for the outdoor unit\u003c\/strong\u003e and \u003cstrong\u003eSENA\/18HF\/IQ for the indoor unit\u003c\/strong\u003e, with \u003cstrong\u003eAHRI 207657629\u003c\/strong\u003e and \u003cstrong\u003eENERGY STAR 2411855\u003c\/strong\u003e identifiers. It uses \u003cstrong\u003eR-454B refrigerant\u003c\/strong\u003e, includes \u003cstrong\u003eWiFi\u003c\/strong\u003e, is certified as \u003cstrong\u003eENERGY STAR and ENERGY STAR Cold Climate\u003c\/strong\u003e, and can operate in heating mode down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSenville’s documentation for the SENA-18HF lists a rated cooling capacity of \u003cstrong\u003e18,000 BTU\/h\u003c\/strong\u003e, a rated heating capacity of \u003cstrong\u003e21,000 BTU\/h\u003c\/strong\u003e, heating operation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, and the manufacturer’s recommendation for spaces of approximately \u003cstrong\u003e750 to 1,000 sq. ft.\u003c\/strong\u003e It also states that professional installation is required to maintain warranty coverage. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThe technical specifications that really matter\u003c\/h3\u003e\n\u003cp\u003eTo compare one 18,000 BTU wall-mounted heat pump with another, it is not enough to look at the number of BTUs displayed on the box. The SENVILLE AURA has a modulating operating range that allows the compressor to reduce or increase its output according to demand.\u003c\/p\u003e\n\u003cp\u003eAccording to the manufacturer’s technical documentation:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eRated cooling capacity: 18,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling range: 9,800 to 20,200 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating capacity: 21,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating range: 10,500 to 22,500 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 21.4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 12.5\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region 4: 13.4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region 5: 9.2\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated COP: 3.35\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMinimum circuit ampacity: 16 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum protection: 20 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese values provide a better understanding of the unit’s behavior over an entire season rather than focusing solely on its maximum output. The technical specifications also confirm the electrical power ranges in heating and cooling mode, which is useful when sizing the electrical circuit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eSEER2, EER2, and HSPF2: what they mean in Montreal\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSEER2 of 21.4\u003c\/strong\u003e indicates strong seasonal cooling efficiency. In an area such as \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, or the North Shore\u003c\/strong\u003e, this rating is particularly relevant during periods when the unit operates several hours a day at partial load.\u003c\/p\u003e\n\u003cp\u003eThis is precisely where variable-speed technology becomes valuable. A properly sized heat pump should not operate solely by alternating between completely off and maximum output. It must be able to adjust its capacity to maintain a stable temperature.\u003c\/p\u003e\n\u003cp\u003eFor heating, the manufacturer publishes two HSPF2 ratings:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHSPF2 Region 4: 13.4\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eHSPF2 Region 5: 9.2\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor a Quebec homeowner, the figure associated with a colder climate region is particularly useful when comparing units. It prevents choosing a heat pump solely on the basis of performance measured under milder conditions.\u003c\/p\u003e\n\u003cp\u003eIt is also important to distinguish the \u003cstrong\u003eCOP of 3.35 stated in the documentation\u003c\/strong\u003e from a COP measured at a specific outdoor temperature. A heat pump's performance changes with the outdoor temperature, compressor speed, and the building's actual demand.\u003c\/p\u003e\n\u003ch3\u003eAn 18,000 BTU heat pump for 750 to 1,000 sq. ft.: an indication, not a sizing rule\u003c\/h3\u003e\n\u003cp\u003eSenville recommends this unit for approximately \u003cstrong\u003e750 to 1,000 sq. ft.\u003c\/strong\u003e This figure is a good starting point, but at AirGreen, we do not recommend choosing a heat pump solely by dividing a home's area by a number of BTUs.\u003c\/p\u003e\n\u003cp\u003eTwo 900 sq. ft. apartments can have completely different requirements.\u003c\/p\u003e\n\u003cp\u003eA relatively recent 900 sq. ft. condo with few exterior walls may require much less heating than a Montreal duplex or triplex floor of the same size with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003elarge windows;\u003c\/li\u003e\n\u003cli\u003epoorly insulated walls;\u003c\/li\u003e\n\u003cli\u003ea high ceiling;\u003c\/li\u003e\n\u003cli\u003esignificant exposure to wind;\u003c\/li\u003e\n\u003cli\u003eseveral enclosed rooms;\u003c\/li\u003e\n\u003cli\u003ea top floor directly beneath the roof.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eConversely, installing an oversized unit is not automatically preferable. An oversized heat pump can quickly reach its setpoint without ensuring equally uniform air distribution in more distant areas.\u003c\/p\u003e\n\u003cp\u003eIn a common scenario we encounter when \u003cstrong\u003einstalling a wall-mounted heat pump in Montreal or on the South Shore\u003c\/strong\u003e, an open-concept space combining the living room, dining room, and kitchen generally allows better air circulation than a floor with four separate bedrooms. The layout of the home therefore becomes almost as important as its total area.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -30 °C: this figure must be understood correctly\u003c\/h3\u003e\n\u003cp\u003eThe ability to operate at \u003cstrong\u003e-30 °C\u003c\/strong\u003e is one of the important features of the AURA series for our market.\u003c\/p\u003e\n\u003cp\u003eHowever, two concepts must be distinguished:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eminimum operating temperature\u003c\/strong\u003e and \u003cstrong\u003eheating capacity available at that temperature\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSenville documentation confirms operation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, but the document provided does not give a precise BTU capacity at -30 °C. The AirGreen specifications, for their part, indicate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e15,000 BTU at -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18,000 BTU at -15 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eoperation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe therefore avoid presenting the simple figure “-30 °C” as a guarantee that the unit will produce its rated 18,000 or 21,000 BTUs at that temperature. To determine whether a heat pump can be used as the primary heating source in a given property, the building's heat loss must be compared with the capacity actually available when the outdoor temperature drops.\u003c\/p\u003e\n\u003cp\u003eThis distinction is particularly important in \u003cstrong\u003eLaval, Montréal, Longueuil, Boucherville, Terrebonne, Repentigny, and the North Shore\u003c\/strong\u003e, where periods of extreme cold can quickly reveal the limitations of an improperly sized unit.\u003c\/p\u003e\n\u003ch3\u003eIndoor operation as low as 27 dB(A)\u003c\/h3\u003e\n\u003cp\u003eFor a wall-mounted unit installed in a living room, bedroom, home office, or condo, the indoor noise level is genuinely important.\u003c\/p\u003e\n\u003cp\u003eThe SENVILLE AURA 18,000 BTU offers four airflow levels listed in the brochure:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e695 CFM in Turbo mode\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e550 CFM at high speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e410 CFM at medium speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e320 CFM at low speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe corresponding sound pressure levels are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e49 dB(A) in Turbo mode\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e43.5 dB(A) at high speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e38.5 dB(A) at medium speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e27 dB(A) at low speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe outdoor unit is rated at \u003cstrong\u003e59 dB(A)\u003c\/strong\u003e, with a maximum airflow of \u003cstrong\u003e1,800 CFM\u003c\/strong\u003e. This data appears in the manufacturer's technical table. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specifications also indicate \u003cstrong\u003eautomatic control of the vertical and horizontal louvers\u003c\/strong\u003e. This feature is particularly useful with an 18,000 BTU unit, since the positioning of the airflow directly affects its ability to reach more distant areas of the room.\u003c\/p\u003e\n\u003ch3\u003eIndoor unit dimensions: a detail to check before choosing its location\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e40.55 in wide × 8.46 in deep × 13.39 in high\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt weighs approximately \u003cstrong\u003e33.5 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eTherefore, a wall must provide enough space not only for the unit, but also for air circulation and maintenance access.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e33.27 × 14.29 × 27.64 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003efor a weight of approximately \u003cstrong\u003e101.4 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn an urban installation in Montréal, these dimensions may influence the choice of location: balcony, side wall, backyard, or ground mount. The location must also allow for future maintenance without unnecessarily dismantling architectural elements or piping protection.\u003c\/p\u003e\n\u003ch3\u003eDehumidification and comfort during humid summers\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer indicates a moisture removal capacity of \u003cstrong\u003e2.2 L\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis point is relevant in Greater Montreal, where an acceptable indoor temperature may still feel uncomfortable when humidity is high.\u003c\/p\u003e\n\u003cp\u003eA properly sized heat pump that runs for sufficiently long periods can help reduce humidity while maintaining a stable temperature. This is another reason why installing an excessively large unit simply to obtain “more BTUs” is not always the best strategy.\u003c\/p\u003e\n\u003ch3\u003eR-454B refrigerant and 1\/4 in – 1\/2 in piping\u003c\/h3\u003e\n\u003cp\u003eThis generation of the SENVILLE AURA operates with \u003cstrong\u003eR-454B\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product sheet indicates refrigerant piping of:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1\/4 in – 1\/2 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSenville documentation indicates a refrigerant charge of \u003cstrong\u003e50.91 oz\u003c\/strong\u003e and specifies that the unit is \u003cstrong\u003eprecharged for a length of up to 25 ft\u003c\/strong\u003e. For some installations with a greater length, additional refrigerant must be added according to the manufacturer’s instructions. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis detail quickly becomes important in a home where the indoor unit is installed on the second floor while the outdoor unit is at ground level.\u003c\/p\u003e\n\u003cp\u003eA professional installation must therefore take the actual piping length into account rather than simply connecting two units and assuming that the factory charge will automatically be sufficient.\u003c\/p\u003e\n\u003ch3\u003eElectrical supply: 208\/230 V, MCA 16 A, and maximum protection of 20 A\u003c\/h3\u003e\n\u003cp\u003eFor this heat pump, the published electrical data are relatively clear:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMCA: 16 A\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003emaximum protection: 20 A\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003especified communication wiring: 14\/4 AWG\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe machine’s operating current alone should not be used to select a circuit breaker. The \u003cstrong\u003eMCA\u003c\/strong\u003e and \u003cstrong\u003eMOP\u003c\/strong\u003e values provided by the manufacturer must guide circuit design along with the requirements applicable to the installation.\u003c\/p\u003e\n\u003cp\u003eBefore the work begins, we check the electrical route, the outdoor unit location, and the panel constraints, among other things, to avoid improvised modifications during commissioning.\u003c\/p\u003e\n\u003ch3\u003eWiFi, app, and Alexa control\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates \u003cstrong\u003eWiFi included\u003c\/strong\u003e, while Senville documentation also mentions \u003cstrong\u003eAlexa\u003c\/strong\u003e compatibility and an \u003cstrong\u003eAlexa USB Kit\u003c\/strong\u003e among the contents expected with the system.\u003c\/p\u003e\n\u003cp\u003eThe owner can therefore adjust the settings remotely, create operating schedules, and change the temperature from the compatible app.\u003c\/p\u003e\n\u003cp\u003eThis feature is particularly convenient in a home where the heat pump is used for heating over long periods. Rather than constantly changing the set temperature, consistent programming generally allows you to get more benefit from the compressor’s modulation.\u003c\/p\u003e\n\u003cp\u003eThe wireless remote control is also included.\u003c\/p\u003e\n\u003ch3\u003eWarranty: an important discrepancy between the AirGreen page and the Senville documentation\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen page for this configuration indicates a warranty of:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years compressor – 10 years parts – 0 years labor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Senville documentation provided for the SENA-18HF states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years on the compressor – 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference may depend on the applicable warranty program, product registration, or commercial terms associated with the unit sold. For this reason, at AirGreen, we always recommend referring to the warranty stated on the quote and the conditions applicable at the time of purchase.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer also states that \u003cstrong\u003eprofessional installation is required to maintain warranty coverage\u003c\/strong\u003e. This is a point that should not be overlooked when purchasing a mini-split unit sold with an installation kit.\u003c\/p\u003e\n\u003ch3\u003eA LogisVert rebate listed at $1,800\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product page currently lists a \u003cstrong\u003e$1,800 LogisVert provincial rebate\u003c\/strong\u003e, with an update dated \u003cstrong\u003eNovember 26, 2025\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSince programs, eligibility criteria, and amounts may change, we verify the applicable eligibility when preparing a quote.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, or the North Shore\u003c\/strong\u003e, this step can have a significant impact on the net cost of a new \u003cstrong\u003ewall-mounted heat pump installation\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003eWhy AirGreen installation matters as much as choosing the SENVILLE AURA\u003c\/h2\u003e\n\u003cp\u003eA heat pump with good technical specifications can deliver disappointing results if the choice of location, drainage, piping, or commissioning is poorly executed.\u003c\/p\u003e\n\u003ch3\u003eThe mistakes we seek to avoid from the outset of project preparation\u003c\/h3\u003e\n\u003cp\u003eIn our \u003cstrong\u003eHVAC work in Greater Montreal\u003c\/strong\u003e, several problems can be prevented before installation even begins.\u003c\/p\u003e\n\u003ch4\u003eChoose 18,000 BTU solely based on floor area\u003c\/h4\u003e\n\u003cp\u003eThe recommendation of 750 to 1,000 sq. ft. is useful, but it does not replace an analysis of the home’s layout.\u003c\/p\u003e\n\u003cp\u003eWe also assess the insulation, windows, exposure, number of rooms, and airflow.\u003c\/p\u003e\n\u003ch4\u003eInstall the indoor unit in a location that blocks air distribution\u003c\/h4\u003e\n\u003cp\u003eA heat pump can be powerful enough on paper and still leave part of the home uncomfortable if its airflow hits a wall immediately or remains trapped in a room.\u003c\/p\u003e\n\u003cp\u003eAutomatic control of the vertical and horizontal louvers is useful, but it cannot compensate for a poor location.\u003c\/p\u003e\n\u003ch4\u003eNeglecting condensate drainage\u003c\/h4\u003e\n\u003cp\u003eThe drainage must be planned with an adequate slope whenever the installation allows it.\u003c\/p\u003e\n\u003cp\u003eA poorly designed route can lead to drainage problems, unwanted noise or service calls that could have been avoided.\u003c\/p\u003e\n\u003ch4\u003eForgetting about winter conditions around the outdoor unit\u003c\/h4\u003e\n\u003cp\u003eIn our climate, the location of the outdoor unit must account for snow, ice, defrosting and the access required for maintenance.\u003c\/p\u003e\n\u003cp\u003eInstalling the unit too low or in an area where defrost water cannot drain properly can create problems precisely when the heat pump is under the greatest demand.\u003c\/p\u003e\n\u003ch4\u003eConfusing “operates at -30°C” with “maintains its full capacity at -30°C”\u003c\/h4\u003e\n\u003cp\u003eThis is probably one of the most common misinterpretations on heat pump specification sheets.\u003c\/p\u003e\n\u003cp\u003eThe minimum operating temperature is important information, but it must always be considered in relation to the available heating capacity at the outdoor temperature.\u003c\/p\u003e\n\u003ch3\u003eHow we prepare a SENVILLE AURA 18,000 BTU installation\u003c\/h3\u003e\n\u003cp\u003eA well-planned installation generally includes several checks before startup:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssessment of the area to be heated and cooled\u003c\/strong\u003e to confirm that 18,000 BTU actually meets the need.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoosing the indoor location\u003c\/strong\u003e to promote good air distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoosing the outdoor location\u003c\/strong\u003e while taking noise, access, snow and defrosting into account.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanning the routing of the refrigerant lines, drainage and wiring\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerification of the electrical supply\u003c\/strong\u003e according to the unit’s MCA and MOP ratings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation and preparation of the refrigerant circuit\u003c\/strong\u003e in accordance with professional practices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommissioning and verification of operation\u003c\/strong\u003e in cooling and heating modes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWi-Fi setup\u003c\/strong\u003e, when desired.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExplanation of the main controls to the owner\u003c\/strong\u003e, including the modes, fan, louvers and programming.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis method is particularly useful when an installation must be integrated neatly into a façade, balcony, townhouse or Montreal plex where options for routing the piping are limited.\u003c\/p\u003e\n\u003ch3\u003eWhat type of property is this heat pump particularly suited to?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE AURA 18,000 BTU R454B\u003c\/strong\u003e can be a suitable option for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ean open-plan floor of a house;\u003c\/li\u003e\n\u003cli\u003ea large living room combined with a kitchen and dining area;\u003c\/li\u003e\n\u003cli\u003ea medium- to large-sized condo;\u003c\/li\u003e\n\u003cli\u003ean apartment whose layout allows air to circulate;\u003c\/li\u003e\n\u003cli\u003ean office or small commercial space;\u003c\/li\u003e\n\u003cli\u003ea wall-mounted heat pump replacement requiring a capacity of around 18,000 BTU;\u003c\/li\u003e\n\u003cli\u003ea homeowner looking for an \u003cstrong\u003eENERGY STAR Cold Climate\u003c\/strong\u003e heat pump with WiFi control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a property consisting of several small rooms isolated from one another, a single 18,000 BTU wall-mounted unit is not necessarily the most efficient configuration. A different solution, sometimes involving multiple zones, may provide a better distribution of comfort.\u003c\/p\u003e\n\u003ch3\u003eShould another heating system be kept?\u003c\/h3\u003e\n\u003cp\u003eIt depends on the building and its heat load.\u003c\/p\u003e\n\u003cp\u003eAlthough the SENVILLE AURA can operate down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, the decision to use a heat pump as the primary heating source should be based on the power actually required by the home on the coldest days.\u003c\/p\u003e\n\u003cp\u003eIn some properties, the existing electric heating remains useful as a backup system. In others, the heat pump can handle a much larger proportion of the annual heating needs.\u003c\/p\u003e\n\u003cp\u003eOur goal is to size the system according to the building rather than present the minimum operating temperature as a universal heating guarantee.\u003c\/p\u003e\n\u003ch3\u003eIs this a heat pump suitable for a bedroom?\u003c\/h3\u003e\n\u003cp\u003eIts noise level can drop as low as \u003cstrong\u003e27 dB(A)\u003c\/strong\u003e at low speed, which is beneficial for installation in an environment where noise matters.\u003c\/p\u003e\n\u003cp\u003eHowever, its width of approximately \u003cstrong\u003e40.55 in.\u003c\/strong\u003e and its 18,000 BTU capacity must be taken into account. For a small individual bedroom, this capacity could be far too high. For a large suite, an open floor, or several connected areas, the assessment is different.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for installation in Montreal, Laval, or on the Shores?\u003c\/h3\u003e\n\u003cp\u003eWe install and maintain \u003cstrong\u003eHVAC heating and cooling\u003c\/strong\u003e systems throughout Greater Montreal. Our work involves more than simply mounting a unit on the wall: we aim to match the system’s capacity, location, and installation to the building’s actual constraints.\u003c\/p\u003e\n\u003cp\u003eWhether your property is located in \u003cstrong\u003eMontreal, Laval, Longueuil, Boucherville, on the South Shore, or on the North Shore\u003c\/strong\u003e, we can assess your space’s configuration, determine whether the SENVILLE AURA 18,000 BTU is suitable, and prepare a detailed installation proposal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen to get a quote, check eligibility for the applicable rebate, or compare the SENVILLE AURA 18,000 BTU with other wall-mounted heat pumps suited to Quebec’s climate. We can help you choose the right capacity before proceeding with the installation.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119541793060,"sku":"SENA\/18HF\/OQ","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_AURA_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_07d8bf21-f115-4466-910c-4e60237bdfde.png?v=1789049524"},{"product_id":"thermopompe-murale-senville-aura-r454b-24000-btu-montreal-rive-sud-nord","title":"SENVILLE AURA R454B Wall-Mounted Heat Pump | 24000 BTU | Montréal, South Shore \u0026 North Shore","description":"\u003ch2\u003e24,000 BTU, heating down to -30 °C, and genuine capacity for large spaces: what the SENVILLE AURA brings to a Quebec home\u003c\/h2\u003e\n\u003cp\u003eA \u003cstrong\u003e24,000 BTU\u003c\/strong\u003e wall-mounted heat pump is not simply a larger version of a 9,000- or 12,000-BTU model. At this capacity, the equipment choice, its location, air circulation, and building sizing become decisive. The \u003cstrong\u003eSENVILLE AURA R454B 24,000 BTU\u003c\/strong\u003e is specifically designed for large residential spaces, open areas, certain commercial premises, and zones where a small wall-mounted unit would quickly reach its limits.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, when we evaluate a \u003cstrong\u003ewall-mounted heat pump installation in Montreal, Laval, Longueuil, on the South Shore or the North Shore\u003c\/strong\u003e, we look beyond the “24,000 BTU” figure. A heat pump must be selected based on its actual capacity at different temperatures, its modulation range, airflow, electrical characteristics, and the physical configuration of the space.\u003c\/p\u003e\n\u003cp\u003eThe combination featured on our AirGreen page uses the \u003cstrong\u003eSENA-24HF-OG\u003c\/strong\u003e outdoor unit and the \u003cstrong\u003eSENA-24HF-IGG\u003c\/strong\u003e indoor unit, with reference \u003cstrong\u003eAHRI 215735298\u003c\/strong\u003e. It is certified \u003cstrong\u003eENERGY STAR®\u003c\/strong\u003e and \u003cstrong\u003eENERGY STAR® Cold Climate\u003c\/strong\u003e, uses \u003cstrong\u003eR-454B\u003c\/strong\u003e refrigerant, and includes WiFi control.\u003c\/p\u003e\n\u003cp\u003eSenville documentation presents the \u003cstrong\u003eSENA-24HF\u003c\/strong\u003e as a 24,000 BTU ductless mini-split heat pump designed for heating and cooling, with ENERGY STAR certification. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eCapacity that is truly suitable for large spaces\u003c\/h3\u003e\n\u003cp\u003eSenville recommends this version of the AURA series for spaces of approximately \u003cstrong\u003e1,150 to 1,350 sq. ft.\u003c\/strong\u003e, positioning it in particular for large rooms and open spaces. The brochure also specifies that professional installation is required. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, this area guideline is a reference, not a sizing method.\u003c\/p\u003e\n\u003cp\u003eTwo 1,200 sq. ft. properties can have completely different heating needs. At AirGreen, we consider, among other factors:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe quality of the insulation;\u003c\/li\u003e\n\u003cli\u003ethe number of exterior walls;\u003c\/li\u003e\n\u003cli\u003ethe type and area of the windows;\u003c\/li\u003e\n\u003cli\u003esun exposure;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003ethe year of construction;\u003c\/li\u003e\n\u003cli\u003eair leaks;\u003c\/li\u003e\n\u003cli\u003ethe layout of the rooms;\u003c\/li\u003e\n\u003cli\u003ethe floor where the heat pump will be installed;\u003c\/li\u003e\n\u003cli\u003ethe actual heating needs when the outdoor temperature drops below -15 °C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is particularly important in \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e, where a relatively recent bungalow on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e will not respond like an older home in Montreal with high ceilings and several exposed walls.\u003c\/p\u003e\n\u003ch3\u003e24,000 nominal BTU, but a much wider modulation range\u003c\/h3\u003e\n\u003cp\u003eSenville's technical specifications provide much more interesting information here than nominal capacity alone.\u003c\/p\u003e\n\u003cp\u003eIn cooling mode, the SENA-24HF offers:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e24,000 BTU\/h nominal capacity\u003c\/strong\u003e, with an operating range of \u003cstrong\u003e12,600 to 27,900 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn heating mode, the manufacturer's stated nominal capacity rises to \u003cstrong\u003e29,000 BTU\/h\u003c\/strong\u003e, with a range of \u003cstrong\u003e11,800 to 29,700 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation range is important.\u003c\/p\u003e\n\u003cp\u003eWhen a large open area is very hot at start-up, the heat pump can increase its output. Once the set temperature is nearly reached, inverter technology allows it to gradually reduce its capacity instead of operating only in on-off cycles.\u003c\/p\u003e\n\u003cp\u003eFor the homeowner, this promotes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emore stable temperature;\u003c\/li\u003e\n\u003cli\u003emore gradual operation;\u003c\/li\u003e\n\u003cli\u003ebetter adaptation to load variations;\u003c\/li\u003e\n\u003cli\u003efewer short cycles when the unit is properly sized;\u003c\/li\u003e\n\u003cli\u003ebetter comfort control during days when demand is moderate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis also explains why it would be incorrect to consider the SENVILLE AURA 24,000 BTU a unit that constantly produces exactly 24,000 BTU.\u003c\/p\u003e\n\u003ch3\u003eSEER2 21 and EER2 13: high efficiency despite the unit's capacity\u003c\/h3\u003e\n\u003cp\u003eAccording to the brochure's technical specifications, the \u003cstrong\u003eSENVILLE AURA 24,000 BTU has a SEER2 of 21 and an EER2 of 13\u003c\/strong\u003e. For heating, the manufacturer indicates an \u003cstrong\u003eHSPF2-4 of 13.5\u003c\/strong\u003e, an \u003cstrong\u003eHSPF2-5 of 9.5\u003c\/strong\u003e, and a nominal COP of 3.42. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese values are important for a unit of this capacity because a 24,000 BTU system can accumulate many operating hours over the course of a year when it serves as both the primary air conditioner and heating source.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSEER2\u003c\/strong\u003e is used to assess seasonal cooling efficiency. \u003cstrong\u003eEER2\u003c\/strong\u003e measures performance under certain standardized operating conditions. \u003cstrong\u003eHSPF2\u003c\/strong\u003e, meanwhile, is used to compare seasonal heating efficiency.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner comparing several \u003cstrong\u003e24,000 BTU wall-mounted heat pumps in Montreal or Laval\u003c\/strong\u003e, these indicators provide a much more useful picture than nominal capacity alone.\u003c\/p\u003e\n\u003ch3\u003eWhat really happens when the temperature drops to -8°C, -15°C, and -30°C\u003c\/h3\u003e\n\u003cp\u003eOur AirGreen specification sheet indicates heating capacities that are particularly relevant to Quebec's climate:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e22,200 BTU\/h at -8°C\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e24,200 BTU\/h at -15°C\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e11,900 BTU\/h maximum at -30°C\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Senville documentation, for its part, confirms a minimum outdoor operating temperature in heating mode of \u003cstrong\u003e-22 °F, or -30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe -30 °C data point should be understood correctly.\u003c\/p\u003e\n\u003cp\u003eThe fact that a heat pump can operate down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e does not mean that it retains its full nominal capacity when the thermometer reaches that temperature. Here, the AirGreen specification sheet indicates approximately \u003cstrong\u003e11,900 BTU\/h maximum at -30 °C\u003c\/strong\u003e, which is much less than the unit’s reference capacity of 24,000 BTU.\u003c\/p\u003e\n\u003cp\u003eIn a home where this unit is an important heating source, we must therefore check whether the building has adequate supplemental heating and when it might become necessary.\u003c\/p\u003e\n\u003cp\u003eThis is a point we regularly emphasize when explaining a \u003cstrong\u003eheat pump quote in Quebec\u003c\/strong\u003e: the minimum operating temperature and the capacity available at that temperature are two different data points.\u003c\/p\u003e\n\u003ch3\u003eAn interesting feature: 24,200 BTU at -15 °C\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates \u003cstrong\u003e24,200 BTU\/h at -15 °C\u003c\/strong\u003e, which is practically the full nominal capacity of 24,000 BTU.\u003c\/p\u003e\n\u003cp\u003eFor the climate of \u003cstrong\u003eMontreal, Longueuil, Laval, the North Shore and the South Shore\u003c\/strong\u003e, this data is highly relevant, because a heat pump is not evaluated solely based on a few hours of extreme cold. A large part of the heating season takes place at temperatures where the unit can still provide substantial capacity.\u003c\/p\u003e\n\u003cp\u003eThis is precisely where analyzing a Cold Climate heat pump becomes more useful than simply stating that it “works down to -30 °C.”\u003c\/p\u003e\n\u003ch3\u003e812 CFM: a unit capable of moving a lot of air\u003c\/h3\u003e\n\u003cp\u003eA 24,000 BTU unit must also distribute its energy throughout the room.\u003c\/p\u003e\n\u003cp\u003eThe documentation provides the following indoor airflow rates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTurbo: 812.3 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHigh speed: 618.0 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMedium speed: 412.0 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLow speed: 317.8 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe sound pressure level varies accordingly from \u003cstrong\u003e54.5 dB(A) in Turbo\u003c\/strong\u003e to just \u003cstrong\u003e27 dB(A) at low speed\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis range allows the indoor unit to move a significant volume of air when a large room needs to be heated or cooled quickly, then reduce its airflow when the temperature stabilizes.\u003c\/p\u003e\n\u003ch4\u003eWhy the indoor unit’s location matters so much with 812 CFM\u003c\/h4\u003e\n\u003cp\u003eWith a small room heat pump, incorrect positioning can create an unpleasant draft over a bed or desk. With a unit capable of reaching more than \u003cstrong\u003e800 CFM\u003c\/strong\u003e, positioning becomes even more important.\u003c\/p\u003e\n\u003cp\u003eWe generally look for a location that allows:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eto project air along the length of the room;\u003c\/li\u003e\n\u003cli\u003eto avoid an immediate obstruction;\u003c\/li\u003e\n\u003cli\u003eto promote circulation toward adjacent areas;\u003c\/li\u003e\n\u003cli\u003eto avoid blowing directly onto occupants;\u003c\/li\u003e\n\u003cli\u003eto maintain the necessary clearances around the unit;\u003c\/li\u003e\n\u003cli\u003eto provide convenient access for maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe AirGreen specifications also indicate that the \u003cstrong\u003evertical and horizontal louvers are automatic\u003c\/strong\u003e, which helps distribute airflow more effectively throughout a large space.\u003c\/p\u003e\n\u003ch3\u003eAn indoor unit significantly larger than a 9,000 or 12,000 BTU model\u003c\/h3\u003e\n\u003cp\u003eThe size of the unit must be taken into consideration before installation.\u003c\/p\u003e\n\u003cp\u003eThe indoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e46.85 in wide × 11.20 in deep × 14.59 in high\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e43.65 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e37.24 in × 16.14 in × 31.89 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e130.29 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore cannot choose the indoor location based solely on aesthetics. Sufficient wall space must be available to install the unit, maintain the required clearances, ensure secure mounting, and provide for the passage of the refrigerant piping and drain.\u003c\/p\u003e\n\u003cp\u003eOutside, a unit weighing more than \u003cstrong\u003e130 lb\u003c\/strong\u003e also requires appropriate support and installation adapted to Quebec conditions.\u003c\/p\u003e\n\u003ch3\u003e3\/8 in – 5\/8 in piping: a technical detail that should not be overlooked\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate piping of:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3\/8 in – 5\/8 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis information becomes particularly important in a replacement project.\u003c\/p\u003e\n\u003cp\u003eA situation we regularly encounter in \u003cstrong\u003eHVAC installation\u003c\/strong\u003e is replacing an old heat pump while wanting to keep the existing piping. We never consider it automatically compatible.\u003c\/p\u003e\n\u003cp\u003eThe following must be checked:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe diameter of both lines;\u003c\/li\u003e\n\u003cli\u003etheir condition;\u003c\/li\u003e\n\u003cli\u003ethe total length;\u003c\/li\u003e\n\u003cli\u003ethe possible presence of contaminants;\u003c\/li\u003e\n\u003cli\u003etheir route through the walls;\u003c\/li\u003e\n\u003cli\u003ethe requirements associated with the new refrigerant;\u003c\/li\u003e\n\u003cli\u003ethe manufacturer's requirements for the new installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eReusing an unsuitable line solely to reduce installation costs can jeopardize the entire project.\u003c\/p\u003e\n\u003ch3\u003eR-454B and precharge for up to 25 feet\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE AURA uses \u003cstrong\u003eR-454B\u003c\/strong\u003e. According to the documentation, the unit contains a charge of \u003cstrong\u003e63.49 oz\u003c\/strong\u003e and is precharged for a piping length of up to \u003cstrong\u003e25 feet\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville also specifies that the system is precharged with R-454B for an installation of up to 25 feet, and that a 50-foot kit requires refrigerant to be added on site by the installer. The manufacturer also emphasizes professional installation to ensure performance and comply with the warranty terms. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor us, this confirms the importance of measuring the route before installation rather than simply estimating the distance between the indoor and outdoor units.\u003c\/p\u003e\n\u003ch3\u003eElectrical requirements: 208\/230 V and a 25 A circuit\u003c\/h3\u003e\n\u003cp\u003eThe documentation specifies:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith a voltage range of \u003cstrong\u003e187 to 253 V\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe circuit’s minimum ampacity is \u003cstrong\u003e24.9 A\u003c\/strong\u003e, and the specified maximum protection is \u003cstrong\u003e25 A\u003c\/strong\u003e. The manufacturer also specifies \u003cstrong\u003e14\/4 AWG\u003c\/strong\u003e connection wiring between the units. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor an installation in \u003cstrong\u003eMontreal, Laval, or Longueuil\u003c\/strong\u003e, we must therefore consider the electrical component from the project assessment onward. A 24,000 BTU heat pump requires more than a simple outlet or an existing power supply selected approximately.\u003c\/p\u003e\n\u003cp\u003eThe panel, circuit breaker, disconnect switch, wiring, and installation must meet the system’s requirements and applicable standards.\u003c\/p\u003e\n\u003ch2\u003eWhat the SENVILLE AURA 24,000 BTU concretely changes in an AirGreen installation\u003c\/h2\u003e\n\u003ch3\u003eWiFi and Alexa: especially useful when the unit serves a large space\u003c\/h3\u003e\n\u003cp\u003eThe heat pump features smart control compatible with \u003cstrong\u003eAlexa\u003c\/strong\u003e. The documentation mentions app control, the ability to modify settings remotely, and the creation of schedules. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a large open-concept space, this feature may be more useful than a simple gimmick.\u003c\/p\u003e\n\u003cp\u003eFor example, a homeowner can lower the setpoint while away and request a different temperature before returning. For a small business or office, schedules can also facilitate the daily management of air conditioning and heating.\u003c\/p\u003e\n\u003cp\u003eThe documentation also indicates that the package includes, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe indoor unit;\u003c\/li\u003e\n\u003cli\u003ethe outdoor unit;\u003c\/li\u003e\n\u003cli\u003ea wireless remote control;\u003c\/li\u003e\n\u003cli\u003ean Alexa USB kit;\u003c\/li\u003e\n\u003cli\u003ethe wiring harness between the units;\u003c\/li\u003e\n\u003cli\u003ethe manuals;\u003c\/li\u003e\n\u003cli\u003ethe installation package according to the selected option. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDehumidification: up to 2.7 L\/h\u003c\/h3\u003e\n\u003cp\u003eThe specified moisture-removal capacity is \u003cstrong\u003e2.7 liters per hour\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis information is relevant during Quebec’s hot and humid periods.\u003c\/p\u003e\n\u003cp\u003eIn a large open-concept space, reaching the right temperature does not automatically guarantee comfort if humidity levels remain high. Modulation capacity and proper condensate drainage therefore become essential.\u003c\/p\u003e\n\u003cp\u003eThis is also why we pay particular attention to the drain during installation: slope, routing, outlet, risk of backflow, and accessibility for maintenance.\u003c\/p\u003e\n\u003ch3\u003eBuilt-in diagnostics and leak detection\u003c\/h3\u003e\n\u003cp\u003eThe AURA series includes a system for \u003cstrong\u003eself-diagnosis and leak detection\u003c\/strong\u003e. According to Senville, these functions are intended to signal certain problems and facilitate system maintenance. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis does not mean that a heat pump can maintain itself.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e remains important, particularly for a unit that moves several hundred cubic feet of air per minute.\u003c\/p\u003e\n\u003cp\u003eClogged filters or a very dirty evaporator can reduce airflow. An obstructed outdoor unit can lose heat-exchange capacity. A poorly maintained drain can eventually cause water problems.\u003c\/p\u003e\n\u003cp\u003eThe electronic functions are therefore a diagnostic aid, not a replacement for maintenance.\u003c\/p\u003e\n\u003ch3\u003eThree Situations in Which We Seriously Consider This Heat Pump\u003c\/h3\u003e\n\u003ch4\u003eLarge Open-Concept Main Floor\u003c\/h4\u003e\n\u003cp\u003eIn a home where the living room, dining room, and kitchen are largely connected, a high-capacity unit can often distribute air much better than a small heat pump located at one end of the building.\u003c\/p\u003e\n\u003cp\u003eThe airflow, which can reach \u003cstrong\u003e812.3 CFM\u003c\/strong\u003e, is particularly relevant in this scenario.\u003c\/p\u003e\n\u003ch4\u003eLarge Home or Condo With Good Air Circulation\u003c\/h4\u003e\n\u003cp\u003eA relatively large area can sometimes be conditioned by a single wall-mounted unit when the layout facilitates air movement.\u003c\/p\u003e\n\u003cp\u003eConversely, a property with many separate rooms may need several zones even if its total area is comparable.\u003c\/p\u003e\n\u003cp\u003eThat is why the manufacturer's recommendation of 1,150 to 1,350 sq. ft. must always be considered in the context of the building.\u003c\/p\u003e\n\u003ch4\u003eSmall Retail Store or Professional Space\u003c\/h4\u003e\n\u003cp\u003eThe SENA-24HF may also be a good option for certain retail stores, offices, or commercial spaces where a wall-mounted unit can cover a large area.\u003c\/p\u003e\n\u003cp\u003eIn these projects, we take a closer look at the heat gains from:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epeople;\u003c\/li\u003e\n\u003cli\u003elighting;\u003c\/li\u003e\n\u003cli\u003eelectronic equipment;\u003c\/li\u003e\n\u003cli\u003elarge display windows;\u003c\/li\u003e\n\u003cli\u003edoors that open frequently.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA 1,000 sq. ft. commercial space may require more cooling than a residence of the same size.\u003c\/p\u003e\n\u003ch3\u003eWhen 24,000 BTU Is Too Much\u003c\/h3\u003e\n\u003cp\u003eOversizing is just as real an error as undersizing.\u003c\/p\u003e\n\u003cp\u003eInstalling a \u003cstrong\u003e24,000 BTU\u003c\/strong\u003e heat pump in a space that would actually require 12,000 or 15,000 BTU does not guarantee better comfort.\u003c\/p\u003e\n\u003cp\u003eEven though the inverter can reduce its capacity to approximately \u003cstrong\u003e12,600 BTU\/h in cooling mode\u003c\/strong\u003e, there is a limit to modulation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a space that is far too small, the unit can quickly reach the set temperature, which can shorten cycle times and impair humidity control.\u003c\/p\u003e\n\u003cp\u003eWe therefore prefer choosing an appropriate capacity rather than adding BTUs “for safety.”\u003c\/p\u003e\n\u003ch3\u003eThe sound level must be interpreted according to the speed\u003c\/h3\u003e\n\u003cp\u003eThe technical sheet states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e27 dB(A) at low speed\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e38.5 dB(A) at medium speed\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e43.5 dB(A) at high speed\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e54.5 dB(A) in Turbo mode\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit is rated at \u003cstrong\u003e61.5 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt would therefore be inaccurate to simply describe this heat pump as “27 dB.”\u003c\/p\u003e\n\u003cp\u003eIt can be very quiet at low speed, but a \u003cstrong\u003e24,000 BTU\u003c\/strong\u003e unit operating in Turbo moves a great deal of air and necessarily becomes more audible.\u003c\/p\u003e\n\u003cp\u003eThis reality is important when choosing its location, especially in a large bedroom, a living room adjacent to a sleeping area, or a condo.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a point to confirm at the time of quotation\u003c\/h3\u003e\n\u003cp\u003eOur AirGreen product sheet currently displays a warranty of \u003cstrong\u003e10 years on the compressor, 10 years on parts, and no manufacturer’s labour warranty\u003c\/strong\u003e, with the possibility of additional protection.\u003c\/p\u003e\n\u003cp\u003eHowever, the provided Senville brochure states \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical sheet also repeats the wording \u003cstrong\u003e10 Years Compressor \/ 5 Years Parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference must therefore be verified according to the terms of sale and registration applicable at the time of purchase. At AirGreen, we prefer to clearly confirm the coverage that will actually accompany your installation rather than leave ambiguity on a product sheet.\u003c\/p\u003e\n\u003ch3\u003eLogisVert rebate: $2,664 shown on the AirGreen product sheet\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet provided for this heat pump indicates a \u003cstrong\u003e$2,664 LogisVert provincial rebate\u003c\/strong\u003e, with an update dated \u003cstrong\u003eNovember 26, 2025\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSince incentive programs, eligibility criteria, and amounts may change, we recommend confirming the applicable amount at the time of your project.\u003c\/p\u003e\n\u003cp\u003eAccurately identifying the system is particularly important during this verification:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSENA-24HF-OG + SENA-24HF-IGG\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAHRI 215735298\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR® Cold Climate\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR ID: 3630044\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis identification reduces the risk of comparing a rebate associated with another combination of units with a similar rated capacity.\u003c\/p\u003e\n\u003ch3\u003eWhat we verify before recommending this SENVILLE 24,000 BTU\u003c\/h3\u003e\n\u003cp\u003eAt AirGreen, a proper installation does not begin when technicians drill into the wall. It begins when we determine whether the unit is truly suitable.\u003c\/p\u003e\n\u003cp\u003eFor this \u003cstrong\u003eSENVILLE AURA R454B 24,000 BTU\u003c\/strong\u003e, we pay particular attention to:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe actual thermal load of the space;\u003c\/li\u003e\n\u003cli\u003ethe ability to properly distribute more than 800 CFM;\u003c\/li\u003e\n\u003cli\u003ethe location of the 46.85 in.-wide indoor unit;\u003c\/li\u003e\n\u003cli\u003ethe ability to properly secure the outdoor unit weighing more than 130 lb;\u003c\/li\u003e\n\u003cli\u003ethe \u003cstrong\u003e3\/8 in – 5\/8 in\u003c\/strong\u003e piping route;\u003c\/li\u003e\n\u003cli\u003ethe total line-set length;\u003c\/li\u003e\n\u003cli\u003econdensate management;\u003c\/li\u003e\n\u003cli\u003ethe 208\/230 V power supply;\u003c\/li\u003e\n\u003cli\u003ethe required 25 A circuit;\u003c\/li\u003e\n\u003cli\u003eclearances and future access for maintenance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis approach is particularly important for \u003cstrong\u003ewall-mounted heat pump installations in Montreal\u003c\/strong\u003e, where some buildings offer little flexibility for positioning the outdoor unit, as well as on the \u003cstrong\u003eSouth Shore, North Shore, in Laval, and in Longueuil\u003c\/strong\u003e, where residential configurations can vary greatly from one property to another.\u003c\/p\u003e\n\u003ch3\u003eWho is this SENVILLE AURA best suited for?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE AURA 24,000 BTU R454B\u003c\/strong\u003e is a particularly interesting option when looking for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea high-capacity wall-mounted heat pump;\u003c\/li\u003e\n\u003cli\u003ea solution for a large open-concept area;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR® Cold Climate\u003c\/strong\u003e certification;\u003c\/li\u003e\n\u003cli\u003eheating operation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea still-significant capacity at \u003cstrong\u003e-15 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWiFi\u003c\/strong\u003e and Alexa control;\u003c\/li\u003e\n\u003cli\u003ean inverter modulation range;\u003c\/li\u003e\n\u003cli\u003ea high airflow rate;\u003c\/li\u003e\n\u003cli\u003ethe new \u003cstrong\u003eR-454B\u003c\/strong\u003e refrigerant;\u003c\/li\u003e\n\u003cli\u003ea solution capable of providing heating and cooling with a single, well-positioned wall-mounted unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHowever, its suitability depends on the building. In some properties, an 18,000 BTU system will be better suited. In others, a multi-zone configuration will provide more even temperatures than a single 24,000 BTU unit.\u003c\/p\u003e\n\u003cp\u003eThe right decision therefore depends less on the number printed on the box than on how heat and air actually circulate throughout the property.\u003c\/p\u003e\n\u003ch3\u003eHave your project assessed before ordering a 24,000 BTU heat pump\u003c\/h3\u003e\n\u003cp\u003eA properly sized \u003cstrong\u003eSENVILLE AURA 24,000 BTU\u003c\/strong\u003e can become a central heating and cooling solution for a large space. If poorly selected or positioned, it will not automatically deliver better results simply because it offers greater capacity.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we can verify the required capacity, unit locations, piping, electrical supply, installation constraints, and eligibility for available programs for your property in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, or the South Shore\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen for a detailed quote for the SENVILLE AURA R454B 24,000 BTU, compare this capacity with other Senville models, and plan an HVAC installation suited to your building’s actual needs.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119541858596,"sku":"SENA-24HF-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_AURA_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_f3909a77-0916-4ccd-8b05-fb5356756a39.png?v=1789049530"},{"product_id":"thermopompe-murale-senville-aura-r454b-33000-btu-montreal-rive-sud-nord","title":"SENVILLE AURA R454B Wall-Mounted Heat Pump | 33000 BTU | Montréal, South Shore \u0026 North Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 33,000 BTU wall-mounted heat pump for large spaces where a smaller unit is no longer enough\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE AURA R454B 33,000 BTU\u003c\/strong\u003e immediately stands out from the 9,000, 12,000, or 18,000 BTU wall-mounted heat pumps found in many condos and homes throughout Greater Montréal. Here, we are dealing with a high-capacity single-zone unit designed to handle much larger air volumes and meet the needs of a large open-concept area, a spacious basement, a commercial space, a workshop, or certain residential layouts where a single wall-mounted head must cover a substantial area.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, when we assess a \u003cstrong\u003ewall-mounted heat pump in Montréal, Laval, Longueuil, on the North Shore or South Shore\u003c\/strong\u003e, we never stop at the 33,000 BTU figure. A high capacity may be exactly what is needed in a large open space, but it can also be excessive in a highly compartmentalized home. The real challenge is matching the unit's capacity to the building's heating and cooling load and, above all, to how air can actually circulate between areas.\u003c\/p\u003e\n\u003cp\u003eSenville documentation presents the SENA-33HF as a \u003cstrong\u003e33,000 BTU\u003c\/strong\u003e ductless heat pump, ENERGY STAR certified, capable of heating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, with smart app and Alexa control. The manufacturer recommends it for spaces of approximately \u003cstrong\u003e1,500 to 1,750 sq. ft.\u003c\/strong\u003e, particularly large rooms and open-concept areas. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, this area is only a general guideline. A very open 1,600 sq. ft. home in Boucherville will not respond at all like a Montréal duplex of the same size divided into several bedrooms and hallways.\u003c\/p\u003e\n\u003ch3\u003eSENA-33HF-OG and SENA-33HF-IGG: the models to be correctly identified\u003c\/h3\u003e\n\u003cp\u003eThe combination presented by AirGreen includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENA-33HF-OG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: SENA-33HF-IGG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI number: 215735299\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR ID: 3630046\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNominal cooling capacity: 33,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi: included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR certification: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR cold climate: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe manufacturer's brochure identifies the technical family as \u003cstrong\u003eSENA-33HF\u003c\/strong\u003e and confirms that it is a ductless wall-mounted heat pump operating on a \u003cstrong\u003e208\/230 V single-phase, 60 Hz\u003c\/strong\u003e power supply. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor us, accurately identifying the indoor and outdoor units is essential during an installation, warranty claim, diagnosis, or rebate verification. Two devices bearing the same brand and similar capacity may have different AHRI data, winter performance, or electrical requirements.\u003c\/p\u003e\n\u003ch3\u003eA nominal 33,000 BTU does not mean 33,000 BTU continuously\u003c\/h3\u003e\n\u003cp\u003eOne of the main advantages of a modern inverter heat pump is its ability to modulate.\u003c\/p\u003e\n\u003cp\u003eThe SENVILLE SENA-33HF offers a cooling range of approximately \u003cstrong\u003e12,000 to 36,000 BTU\/h\u003c\/strong\u003e. In heating mode, the manufacturer's stated nominal capacity is \u003cstrong\u003e34,500 BTU\/h\u003c\/strong\u003e, with a modulation range of approximately \u003cstrong\u003e13,000 to 38,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation is particularly important for a high-capacity wall-mounted heat pump. On a hot day in July, cooling demand may be high in the afternoon and then decrease considerably in the evening. The unit can then reduce its output instead of operating continuously at maximum capacity.\u003c\/p\u003e\n\u003cp\u003eIt should nevertheless be understood that a minimum of approximately 12,000 BTU in cooling mode remains high for a small room. That is why we avoid installing a \u003cstrong\u003e33,000 BTU heat pump\u003c\/strong\u003e in a space that is too small simply to obtain “more power.”\u003c\/p\u003e\n\u003ch3\u003eSEER2 of 19.5: how to interpret the performance of this large unit\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer's technical documentation indicates a \u003cstrong\u003eSEER2 of 19.5\u003c\/strong\u003e and an \u003cstrong\u003eEER2 of 11.5\u003c\/strong\u003e. In heating mode, it lists an \u003cstrong\u003eHSPF2-4 of 10.5\u003c\/strong\u003e, an \u003cstrong\u003eHSPF2-5 of 8.5\u003c\/strong\u003e, and a nominal COP of \u003cstrong\u003e3.3\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a unit of this capacity, a SEER2 of 19.5 represents an interesting efficiency level, particularly when comparing the use of an inverter heat pump with older air-conditioning solutions that operate with much more pronounced on-off cycles.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer also claims potential annual energy savings of up to 50%. However, we prefer to present this figure with caution: actual consumption always depends on the equipment being replaced, insulation, setpoint temperatures, climate, operating hours, and building configuration. The brochure confirms the \u003cstrong\u003eSEER2 of 19.5\u003c\/strong\u003e, ENERGY STAR certification, and this manufacturer estimate. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eGenuine heating capacity for the Quebec climate\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates heating operation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, which is also confirmed by Senville documentation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe information becomes much more useful when we look at the available capacity in cold temperatures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e32,000 BTU\/h at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e35,000 BTU\/h at -15 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eup to \u003cstrong\u003e20,700 BTU\/h at -30 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese figures show why a heat pump should never be summarized solely by the claim “operates down to -30 °C.”\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-15 °C\u003c\/strong\u003e, the stated capacity remains very high. At \u003cstrong\u003e-30 °C\u003c\/strong\u003e, it drops to approximately 20,700 BTU\/h. At the same time, the building's heat loss increases as the outdoor temperature decreases.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner in \u003cstrong\u003eLaval\u003c\/strong\u003e, Terrebonne, Longueuil, or on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, the essential question is therefore not just whether the machine continues to operate at -30 °C. We must determine whether the BTUs available at that temperature are still sufficient to meet the building's heating load.\u003c\/p\u003e\n\u003cp\u003eThis is exactly why we analyze heating needs before using a heat pump as the primary heat source.\u003c\/p\u003e\n\u003ch3\u003eAn indoor unit that moves a lot of air\u003c\/h3\u003e\n\u003cp\u003eAt this capacity, air circulation becomes a central factor in comfort.\u003c\/p\u003e\n\u003cp\u003eThe brochure indicates four indoor airflow rates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e890 CFM in Turbo mode\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e720 CFM at high speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e540 CFM at medium speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e410 CFM at low speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe indoor sound level ranges from \u003cstrong\u003e30 dB(A)\u003c\/strong\u003e at low speed to \u003cstrong\u003e53 dB(A)\u003c\/strong\u003e in Turbo mode. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis high airflow explains why this unit can be effective in a large open space. It also explains why its location must be chosen intelligently.\u003c\/p\u003e\n\u003cp\u003eInstalling a 33,000 BTU indoor unit directly above a sofa, work table, or bed can create an unpleasant draft. Instead, we seek to use the length of the room and the geometry of the space to allow the airflow to develop.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specifications also indicate \u003cstrong\u003eautomatic control of the vertical and horizontal louvers\u003c\/strong\u003e, which improves air distribution in large rooms.\u003c\/p\u003e\n\u003ch3\u003eDimensions must be planned before installation\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately \u003cstrong\u003e48.8 in wide × 11.2 in deep × 14.6 in high\u003c\/strong\u003e and weighs approximately \u003cstrong\u003e44.1 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit is even larger—approximately \u003cstrong\u003e38.6 × 16.1 × 33.1 in\u003c\/strong\u003e, with a weight of approximately \u003cstrong\u003e140 lb\u003c\/strong\u003e. The stated outdoor sound level is \u003cstrong\u003e63 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore do not treat this model like a standard small wall-mounted heat pump.\u003c\/p\u003e\n\u003cp\u003eBefore a \u003cstrong\u003eheat pump installation in Montreal or Greater Montreal\u003c\/strong\u003e, we must check:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe actual width available for the indoor unit;\u003c\/li\u003e\n\u003cli\u003erequired clearances;\u003c\/li\u003e\n\u003cli\u003ethe strength of the mounting surface;\u003c\/li\u003e\n\u003cli\u003ethe route of the refrigerant lines;\u003c\/li\u003e\n\u003cli\u003ethe location of the outdoor unit;\u003c\/li\u003e\n\u003cli\u003epossible snow accumulation;\u003c\/li\u003e\n\u003cli\u003edrainage of water from defrost cycles;\u003c\/li\u003e\n\u003cli\u003efuture accessibility for maintenance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eA 140-pound outdoor heat pump unit also requires a support suitable for the actual installation, whether it is a wall bracket, a base, or another approved solution.\u003c\/p\u003e\n\u003ch2\u003eWhat we check at AirGreen before installing a 33,000-BTU SENVILLE AURA\u003c\/h2\u003e\n\u003ch3\u003eA large area does not automatically mean a large heat pump\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer recommends this unit for approximately \u003cstrong\u003e1,500 to 1,750 square feet\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe use this information as a reference point, never as the sole sizing method.\u003c\/p\u003e\n\u003cp\u003eLet us consider two very different scenarios.\u003c\/p\u003e\n\u003cp\u003eIn a 1,500-square-foot open-plan area with a living room, kitchen, and dining room that are practically without partitions, a high-capacity ductless heat pump can benefit from good air distribution.\u003c\/p\u003e\n\u003cp\u003eIn a 1,500-square-foot home consisting of four bedrooms, two hallways, and several doors, installing a single 33,000-BTU head in the living room absolutely does not guarantee that every bedroom will reach the desired temperature.\u003c\/p\u003e\n\u003cp\u003eThe cooling capacity may be sufficient on paper, while the real problem is \u003cstrong\u003eair distribution\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis is a situation we regularly encounter in the \u003cstrong\u003eHVAC industry in Montreal and the North and South Shore suburbs\u003c\/strong\u003e: increasing BTUs does not replace a good air-distribution strategy.\u003c\/p\u003e\n\u003ch3\u003eA particularly interesting application for large open spaces\u003c\/h3\u003e\n\u003cp\u003eThis SENVILLE AURA may be suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea large open main floor;\u003c\/li\u003e\n\u003cli\u003ea large basement;\u003c\/li\u003e\n\u003cli\u003ea loft;\u003c\/li\u003e\n\u003cli\u003ea workshop;\u003c\/li\u003e\n\u003cli\u003ecertain commercial rooms;\u003c\/li\u003e\n\u003cli\u003ean open-plan office;\u003c\/li\u003e\n\u003cli\u003ea large multipurpose room;\u003c\/li\u003e\n\u003cli\u003ecertain homes where the staircase and openings naturally promote air movement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe recommend it much more cautiously in a home with many separate rooms.\u003c\/p\u003e\n\u003cp\u003eIn some cases, two smaller, well-placed units can provide better comfort than a single very large heat pump, even when their total capacity is similar.\u003c\/p\u003e\n\u003ch3\u003e3\/8-inch–3\/4-inch piping: a larger-diameter installation\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications sheet lists 3\/8-inch–3\/4-inch refrigerant piping.\u003c\/p\u003e\n\u003cp\u003eThe 3\/4-inch diameter on the gas side is significantly larger than that used on many small-capacity ductless heat pumps. It affects route planning, bends, wall penetrations, and the cost of an installation involving long piping runs.\u003c\/p\u003e\n\u003cp\u003eThe brochure also specifies that the system uses \u003cstrong\u003eR-454B\u003c\/strong\u003e, with a listed charge of \u003cstrong\u003e68.4 oz\u003c\/strong\u003e, and that it is precharged for a line length of up to \u003cstrong\u003e25 feet\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville specifies that an installation with a 50-foot line set requires additional refrigerant to be added on-site by the installer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eR-454B is an A2L refrigerant. The installation must therefore comply with the methods, equipment, and procedures applicable to this new generation of refrigerants.\u003c\/p\u003e\n\u003ch3\u003eWhy proper evacuation remains essential\u003c\/h3\u003e\n\u003cp\u003eA heat pump may operate after a poor installation without necessarily showing an obvious fault immediately.\u003c\/p\u003e\n\u003cp\u003eThis is precisely what makes certain errors costly.\u003c\/p\u003e\n\u003cp\u003eAn improperly prepared refrigerant line may contain moisture or contaminants. Improper evacuation, a leak at a connection, or an incorrect charge can affect performance, power consumption, and potentially compressor longevity.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, \u003cstrong\u003eHVAC commissioning\u003c\/strong\u003e is therefore an integral part of installation quality, on an equal footing with the physical securing of the units.\u003c\/p\u003e\n\u003ch3\u003eDrainage: 3.5 liters per hour must not be ignored\u003c\/h3\u003e\n\u003cp\u003eThe technical data sheet indicates a dehumidification capacity of approximately \u003cstrong\u003e3.5 L\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDuring Montreal's hot and humid season, a heat pump of this capacity can therefore produce a significant amount of condensate.\u003c\/p\u003e\n\u003cp\u003eThe drain must be:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eproperly sized;\u003c\/li\u003e\n\u003cli\u003einstalled with a sufficient slope when gravity drainage is used;\u003c\/li\u003e\n\u003cli\u003eprotected against backflow;\u003c\/li\u003e\n\u003cli\u003epositioned so as not to cause damage to the facade or around the foundation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA fully functional heat pump can become a source of water damage if drainage has been neglected.\u003c\/p\u003e\n\u003ch3\u003eElectrical requirements: 34 A MCA and maximum protection of 35 A\u003c\/h3\u003e\n\u003cp\u003eThis unit is much more electrically demanding than a small wall-mounted heat pump.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer's documentation states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epower supply \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003evoltage range \u003cstrong\u003e187 to 253 V\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMCA: 34 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emaximum protection: \u003cstrong\u003e35 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese values must be taken into account from the quotation stage.\u003c\/p\u003e\n\u003cp\u003eIn some older homes in \u003cstrong\u003eMontreal\u003c\/strong\u003e, especially when the electrical panel is already heavily loaded by electric heating, the water heater, the stove, and other equipment, we must verify whether the electrical installation can accommodate the addition of the heat pump under suitable conditions.\u003c\/p\u003e\n\u003cp\u003eThe connection wiring between the units is indicated in \u003cstrong\u003e14 × 4 AWG\u003c\/strong\u003e in the brochure. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis communication\/interconnection cable must not be confused with the complete sizing of the electrical power circuit. The latter must be carried out according to the nameplate data and the requirements applicable to the installation.\u003c\/p\u003e\n\u003ch3\u003eWiFi and Alexa: especially useful when the space has variable schedules\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE AURA is compatible with smart control via an app and Alexa.\u003c\/p\u003e\n\u003cp\u003eAccording to the brochure, it is possible to adjust the settings remotely and schedule operating times. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a commercial space, workshop, or office, this feature can be particularly practical. The setpoint can be lowered after business hours and a comfortable level restored before occupants arrive.\u003c\/p\u003e\n\u003cp\u003eThe brochure also indicates the presence of \u003cstrong\u003eself-diagnostic and leak-detection functions\u003c\/strong\u003e, intended to facilitate the identification of certain operating problems. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese features obviously do not replace a diagnosis by a refrigeration technician when the unit no longer heats properly, makes noise, frosts abnormally, or displays an error code.\u003c\/p\u003e\n\u003ch3\u003eWarranty: information to be confirmed at the time of purchase\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen sheet provided for this combination indicates a warranty of:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years compressor – 10 years parts – 0 years labor.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe attached Senville brochure nevertheless provides different information: \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference must be clarified before purchase.\u003c\/p\u003e\n\u003cp\u003eWarranty programs may depend on the seller, equipment registration, distribution channel, or specific conditions. We prefer to confirm the exact coverage applicable to the equipment sold by AirGreen rather than assume that a generic manufacturer’s warranty automatically applies.\u003c\/p\u003e\n\u003ch3\u003eDisplayed LogisVert subsidy: $3,840\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet provided with this model lists a \u003cstrong\u003e$3,840 LogisVert provincial subsidy\u003c\/strong\u003e, with an update dated \u003cstrong\u003eNovember 26, 2025\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis information is particularly relevant for a 33,000 BTU unit, since the financial assistance can have a major impact on the project’s net cost.\u003c\/p\u003e\n\u003cp\u003eHowever, a subsidy is never determined solely by the brand or nominal capacity. Eligibility may depend on the exact combination of equipment, the AHRI number, the building, and the program rules in effect at the time of installation.\u003c\/p\u003e\n\u003cp\u003eWe therefore always recommend confirming the applicable amount before making a final decision.\u003c\/p\u003e\n\u003ch3\u003eThe mistake we want to avoid: choosing 33,000 BTU solely to “be sure”\u003c\/h3\u003e\n\u003cp\u003eIn the field, oversizing a heat pump can sometimes seem reassuring.\u003c\/p\u003e\n\u003cp\u003eA homeowner may think that a larger unit will heat faster and will therefore necessarily be better. In reality, the goal of an efficient installation is to have the \u003cstrong\u003eright capacity\u003c\/strong\u003e, not simply the highest one.\u003c\/p\u003e\n\u003cp\u003eAn oversized heat pump can:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eshorten cycle times;\u003c\/li\u003e\n\u003cli\u003ereduce dehumidification quality under certain conditions;\u003c\/li\u003e\n\u003cli\u003ecreate stronger drafts;\u003c\/li\u003e\n\u003cli\u003ecost more to install;\u003c\/li\u003e\n\u003cli\u003erequire a higher power supply;\u003c\/li\u003e\n\u003cli\u003eprovide poor temperature distribution when the problem is architectural rather than related to BTUs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE AURA 33,000 BTU\u003c\/strong\u003e is therefore an excellent candidate when there is a genuinely significant heat load and enough space to use its airflow properly.\u003c\/p\u003e\n\u003ch3\u003eWhy entrust this installation to AirGreen\u003c\/h3\u003e\n\u003cp\u003eA 33,000 BTU heat pump requires more preparation than a small bedroom unit.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we analyze the project as a whole:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ecapacity actually required;\u003c\/li\u003e\n\u003cli\u003eindoor unit location;\u003c\/li\u003e\n\u003cli\u003eairflow reach;\u003c\/li\u003e\n\u003cli\u003eelectrical supply;\u003c\/li\u003e\n\u003cli\u003erefrigerant line lengths;\u003c\/li\u003e\n\u003cli\u003edrainage;\u003c\/li\u003e\n\u003cli\u003eclearances;\u003c\/li\u003e\n\u003cli\u003eoutdoor unit support;\u003c\/li\u003e\n\u003cli\u003efuture access for maintenance;\u003c\/li\u003e\n\u003cli\u003ewinter performance;\u003c\/li\u003e\n\u003cli\u003epotential eligibility for rebates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe perform \u003cstrong\u003eheat pump installations in Montreal, Laval, Longueuil, on the South Shore and the North Shore\u003c\/strong\u003e, using an approach focused equally on actual performance and the visual quality of the installation.\u003c\/p\u003e\n\u003cp\u003eIn a large open-concept area, a well-positioned unit can make a major difference. Conversely, an excellent heat pump installed in the wrong location can leave part of the building uncomfortable despite having more than sufficient rated capacity.\u003c\/p\u003e\n\u003ch3\u003eOur verdict on the SENVILLE AURA R454B 33,000 BTU\u003c\/h3\u003e\n\u003cp\u003eThis SENVILLE occupies a distinctive position in the wall-mounted heat pump range.\u003c\/p\u003e\n\u003cp\u003eIts appeal comes from the combination of several elements:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e33,000 BTU in cooling\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003erated heating capacity of \u003cstrong\u003e34,500 BTU\u003c\/strong\u003e according to the brochure;\u003c\/li\u003e\n\u003cli\u003ecapacity modulation up to \u003cstrong\u003e36,000 BTU in cooling\u003c\/strong\u003e and \u003cstrong\u003e38,000 BTU in heating\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSEER2 of 19.5\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eheating down to -30 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR Cold Climate\u003c\/strong\u003e certification;\u003c\/li\u003e\n\u003cli\u003eWiFi and Alexa;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eR-454B\u003c\/strong\u003e refrigerant;\u003c\/li\u003e\n\u003cli\u003eindoor airflow of up to \u003cstrong\u003e890 CFM\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eimpressive winter performance down to very low temperatures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHowever, it must be selected for the right reasons. The fact that a unit can technically cover a large area does not mean that it can distribute its air effectively throughout several closed rooms.\u003c\/p\u003e\n\u003cp\u003eFor a properly configured large open-concept area, this \u003cstrong\u003e33,000 BTU wall-mounted heat pump\u003c\/strong\u003e can be a highly suitable solution. For a more complex property, we can also determine whether a different capacity or configuration would provide greater comfort.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre you considering the SENVILLE AURA R454B 33,000 BTU for your home, business, basement, or large open-concept area? Contact AirGreen for a quote and a complete assessment of your project. We serve Montreal, Laval, Longueuil, the North Shore, and the South Shore for the sale, installation, maintenance, and servicing of wall-mounted heat pumps.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119541891364,"sku":"SENA-33HF-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_AURA_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_74c7c79d-5e10-49c1-a5b0-a1e30932ece2.png?v=1789049533"},{"product_id":"mini-split-senville-leto-9000-btu-115v-montreal-laval-rive-sud","title":"SENVILLE LETO Mini-Split | 9000 BTU 115V | Montréal, Laval, South Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 9,000 BTU mini-split that prioritizes the simplicity of 115 V without sacrificing efficiency\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE LETO 9,000 BTU 115 V\u003c\/strong\u003e occupies a unique place among the wall-mounted heat pumps we evaluate at AirGreen. It is primarily intended for small spaces where a 9,000 BTU capacity is genuinely appropriate: a bedroom, home office, small living area, insulated workshop, compact condo, or specific area of a home that remains uncomfortable despite the main heating system.\u003c\/p\u003e\n\u003cp\u003eFor homeowners in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, and the North Shore\u003c\/strong\u003e, its main technical advantage is easy to identify: this version operates on a \u003cstrong\u003e115 V\u003c\/strong\u003e power supply rather than the 208\/230 V commonly used by wall-mounted heat pumps. This may simplify some electrical projects, but “115 V” should absolutely not be interpreted as “an appliance that can simply be plugged into an existing wall outlet.” We will return to this later, because this is precisely the kind of detail that distinguishes a product sheet from genuine \u003cstrong\u003eHVAC installation\u003c\/strong\u003e planning.\u003c\/p\u003e\n\u003cp\u003eThe combination of interest consists of the \u003cstrong\u003eSENL-09CD-OL\u003c\/strong\u003e outdoor unit and the \u003cstrong\u003eSENL-09CD-ILL\u003c\/strong\u003e indoor unit, with reference number \u003cstrong\u003eAHRI 215735286\u003c\/strong\u003e. The AHRI certificate confirms a rated cooling capacity of \u003cstrong\u003e9,000 BTU\/h\u003c\/strong\u003e, a \u003cstrong\u003eSEER2 of 21.5\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 12.5\u003c\/strong\u003e, a rated heating capacity of \u003cstrong\u003e10,000 BTU\/h\u003c\/strong\u003e, and an \u003cstrong\u003eHSPF2 of 9.0 for Region IV\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eKey technical data to consider before comparing this model\u003c\/h3\u003e\n\u003cp\u003eThe Senville brochure provided with this product clearly identifies the LETO as a \u003cstrong\u003eheat pump mini-split\u003c\/strong\u003e, intended for small spaces and capable of heating down to approximately \u003cstrong\u003e-15 °C\u003c\/strong\u003e. The same documentation states a rating of \u003cstrong\u003e21.5 SEER2\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHere are the features we consider most important for a residential project:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModels:\u003c\/strong\u003e SENL-09CD-OL outdoor \/ SENL-09CD-ILL indoor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAHRI reference:\u003c\/strong\u003e 215735286\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated cooling capacity:\u003c\/strong\u003e 9,000 BTU\/h\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertified rated heating capacity:\u003c\/strong\u003e 10,000 BTU\/h\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSenville published cooling range:\u003c\/strong\u003e 2,650 to 10,300 BTU\/h\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating range:\u003c\/strong\u003e 2,700 to 10,500 BTU\/h\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSEER2:\u003c\/strong\u003e 21,5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEER2:\u003c\/strong\u003e 12,5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSPF2 AHRI, Region IV:\u003c\/strong\u003e 9,0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating:\u003c\/strong\u003e operation expected down to approximately -15 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating capacity at approximately -8 °C:\u003c\/strong\u003e 8,000 BTU\/h\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating capacity at -15 °C:\u003c\/strong\u003e approximately 6,500 BTU\/h\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerant:\u003c\/strong\u003e R454B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower supply:\u003c\/strong\u003e 115 V, single-phase, 60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum circuit ampacity:\u003c\/strong\u003e 20 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum specified protection:\u003c\/strong\u003e 30 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiping:\u003c\/strong\u003e 1\/4 in. – 3\/8 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWi-Fi and Alexa:\u003c\/strong\u003e compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndoor sound level:\u003c\/strong\u003e as low as 22 dB(A) at low speed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutdoor sound level:\u003c\/strong\u003e 55 dB(A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndoor dimensions:\u003c\/strong\u003e 28.43 × 7.36 × 11.42 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutdoor dimensions:\u003c\/strong\u003e 30.12 × 11.93 × 21.85 in.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe technical table on \u003cstrong\u003epage 4 of the brochure\u003c\/strong\u003e confirms, among other things, the 115 V power supply, the voltage range of 103.5 to 126.5 V, the SEER2 and EER2 ratings, the minimum circuit ampacity of 20 A, and the maximum overcurrent protection of 30 A. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eVariable capacity rather than simply “9,000 BTU”\u003c\/h3\u003e\n\u003cp\u003eOne point we often explain to our customers is that \u003cstrong\u003e9,000 BTU\u003c\/strong\u003e is not a fixed output that the unit produces continuously.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDC Inverter\u003c\/strong\u003e technology allows the compressor to modulate. Senville documentation specifies a range of \u003cstrong\u003e2,650 to 10,300 BTU\/h in cooling\u003c\/strong\u003e and \u003cstrong\u003e2,700 to 10,500 BTU\/h in heating\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation capacity is particularly useful in a small space. A traditional heat pump that constantly starts and stops can create temperature fluctuations and reduce dehumidification quality. A properly sized Inverter heat pump can instead run longer at a low speed and gradually adjust its output.\u003c\/p\u003e\n\u003cp\u003eIn a bedroom or office, this also contributes to acoustic comfort. The compressor does not need to operate at maximum capacity every time the temperature changes slightly.\u003c\/p\u003e\n\u003ch3\u003eWhat area can we realistically target?\u003c\/h3\u003e\n\u003cp\u003eSenville associates this model with small spaces and mentions a general range of up to approximately \u003cstrong\u003e400 to 450 sq. ft.\u003c\/strong\u003e, with a technical value of \u003cstrong\u003e400 sq. ft. for 8-foot ceilings\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we never turn this information into an automatic rule.\u003c\/p\u003e\n\u003cp\u003eA 300 sq. ft. room in the middle of a newer condo in \u003cstrong\u003eLaval\u003c\/strong\u003e may have a very low heating and cooling load. A space of the same size on the top floor of a triplex in \u003cstrong\u003eMontreal\u003c\/strong\u003e, with a large south-facing window and a roof directly above it, may require much more cooling during a July day.\u003c\/p\u003e\n\u003cp\u003eThe calculation depends in particular on insulation, windows, solar exposure, the number of exterior walls, ceiling height, and how air can circulate toward adjacent rooms.\u003c\/p\u003e\n\u003cp\u003eThat is why an experienced installer does not automatically recommend a 12,000 BTU unit when a customer says they want “a little more power.” In a space genuinely suited to 9,000 BTU, the LETO can operate more steadily and comfortably than an oversized unit.\u003c\/p\u003e\n\u003ch3\u003e21.5 SEER2: impressive efficiency for a unit in this category\u003c\/h3\u003e\n\u003cp\u003eWith a \u003cstrong\u003e21.5 SEER2\u003c\/strong\u003e, the SENVILLE LETO offers seasonal cooling efficiency that is significantly higher than that of many older-generation systems.\u003c\/p\u003e\n\u003cp\u003eSenville also attributes a consumption reduction of up to 48% under certain comparison conditions to its Inverter technology. This percentage should be treated as a manufacturer claim, not as a promise of an identical reduction on every property's Hydro-Québec bill. Actual consumption varies too greatly depending on the building, the requested temperature, the system being replaced, and usage habits. Nevertheless, the manufacturer explains that the Inverter compressor adjusts its output rather than operating solely in on-off mode. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor us, the most useful figure remains the certified rating \u003cstrong\u003eAHRI 215735286\u003c\/strong\u003e, because it makes it possible to compare this specific combination with other heat pumps on a common basis. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eHeating at -15 °C: understanding the LETO's limit precisely\u003c\/h3\u003e\n\u003cp\u003eThe 9,000 BTU 115 V LETO can provide heating in cold weather, but it should not be presented as equivalent to a heat pump designed for \u003cstrong\u003e-25 °C or -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSenville also classifies its standard models among the units that can operate down to approximately \u003cstrong\u003e-15 °C\u003c\/strong\u003e, while its product lines designed for more extreme temperatures are rated down to -30 °C. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe certification of the SENL-09CD-OL \/ SENL-09CD-ILL model shows what happens as the mercury drops: heating capacity falls from approximately \u003cstrong\u003e10,000 BTU\/h at 8.3 °C\u003c\/strong\u003e to \u003cstrong\u003e8,000 BTU\/h around -8 °C\u003c\/strong\u003e, then to approximately \u003cstrong\u003e6,500 BTU\/h at -15 °C\u003c\/strong\u003e. The model is ENERGY STAR certified, but it is not classified as \u003cstrong\u003eENERGY STAR – cold climate\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a property in \u003cstrong\u003eMontreal, Laval, Longueuil, or the South Shore\u003c\/strong\u003e, we therefore recommend retaining a supplemental heating source when this unit is used during the winter. Existing electric baseboards, for example, can take over when the temperature falls below the heat pump's practical operating range or when the building's heat losses exceed the available capacity.\u003c\/p\u003e\n\u003cp\u003eThis is an important distinction. A customer primarily looking for excellent air conditioning with supplemental heating in the fall and spring may find the LETO highly suitable. A homeowner who wants to maximize heat-pump heating during the coldest nights of January should instead compare this model with a cold-climate-certified heat pump.\u003c\/p\u003e\n\u003ch3\u003e115 V: an appealing advantage, but not an ordinary outlet\u003c\/h3\u003e\n\u003cp\u003eWe regularly see homeowners automatically associate 115 V with a very simple electrical installation.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE LETO 9,000 BTU 115 V\u003c\/strong\u003e nevertheless requires a \u003cstrong\u003eminimum circuit ampacity of 20 A\u003c\/strong\u003e, and Senville specifies a maximum protection of 30 A. The panel, conductor, disconnecting means, and appropriate protection must therefore all be checked as part of the project. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn other words, just because the equipment operates at a voltage comparable to that of ordinary household outlets does not mean we can install it on any existing circuit.\u003c\/p\u003e\n\u003cp\u003eThis 115 V version can nevertheless be very practical in certain buildings where adding a 230 V appliance would be less advantageous. We then assess the panel capacity and existing configuration before confirming the installation.\u003c\/p\u003e\n\u003ch3\u003eOne of the most appealing aspects: only 22 dB(A) at low speed\u003c\/h3\u003e\n\u003cp\u003eFor a bedroom or office mini-split, we place great importance on noise levels.\u003c\/p\u003e\n\u003cp\u003eThe LETO reaches \u003cstrong\u003e22 dB(A)\u003c\/strong\u003e at low speed. The stated levels are 22, 31, and 36.5 dB(A), depending on the indoor fan speed. Airflow ranges accordingly from approximately 129 to 247 CFM. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese features are particularly well suited to places where constant noise can quickly become bothersome: a primary bedroom, home office, studio, or small treatment room.\u003c\/p\u003e\n\u003cp\u003eSleep mode adds another interesting function. Senville provides for a gradual adjustment of the settings overnight to avoid unnecessarily maintaining an aggressive setpoint for several hours. The manufacturer also highlights \u003cstrong\u003edehumidification, fan, and Turbo modes\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWi-Fi and Alexa: smart control is included\u003c\/h3\u003e\n\u003cp\u003eThe documentation for the current LETO generation mentions \u003cstrong\u003eWi-Fi\u003c\/strong\u003e control, the Senville app, and compatibility with \u003cstrong\u003eAmazon Alexa\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe owner can modify the temperature, turn the system on or off, and schedule operating times remotely. The brochure also specifies that an \u003cstrong\u003eAlexa USB kit\u003c\/strong\u003e is one of the components listed with the product. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn an office, rental unit, or room used only a few hours a day, this scheduling may be more useful than having the heat pump maintain the same temperature 24 hours a day.\u003c\/p\u003e\n\u003ch3\u003eR454B: a new generation that requires proper installation\u003c\/h3\u003e\n\u003cp\u003eThe LETO presented here operates with \u003cstrong\u003eR454B refrigerant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe specified charge is \u003cstrong\u003e25.4 oz\u003c\/strong\u003e, and the system is precharged for a piping length of up to \u003cstrong\u003e25 ft\u003c\/strong\u003e. Senville also indicates that an installation using a 50 ft kit requires an on-site refrigerant charge adjustment. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is precisely where a \u003cstrong\u003eprofessional heat pump installation\u003c\/strong\u003e becomes so important. Refrigerant connections, leak testing, evacuation, line length, and refrigerant charge must not be improvised.\u003c\/p\u003e\n\u003cp\u003eR454B is an A2L-category refrigerant. It requires work methods, tools, and procedures compatible with this new generation of equipment. A proper installation therefore involves more than simply mounting two units and connecting two pipes.\u003c\/p\u003e\n\u003ch2\u003eLETO installation, use, and selection: our approach at AirGreen\u003c\/h2\u003e\n\u003ch3\u003eA real Senville LETO installation in Montréal reminds us of the importance of positioning\u003c\/h3\u003e\n\u003cp\u003eAirGreen has already completed and documented a \u003cstrong\u003eMontréal installation of an 18,000 BTU Senville LETO\u003c\/strong\u003e. It was not this new 9,000 BTU 115 V R454B version; the two configurations should therefore not be confused. However, the project remains highly relevant for understanding how we work with the LETO lineup.\u003c\/p\u003e\n\u003cp\u003eFor this installation, our team first determined the units’ positions to maintain good airflow. The outdoor unit was installed on brackets to limit vibrations, while the indoor unit was positioned to distribute air efficiently throughout the living space. The refrigerant lines were also carefully insulated. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis type of decision is even more important with a small 9,000 BTU unit. A moderate-capacity unit should not be installed in a corner simply because that location reduces the piping length. If the airflow immediately hits a wall or cannot reach the occupied area, the homeowner may ask for a much lower or higher temperature to compensate.\u003c\/p\u003e\n\u003ch3\u003eWhere does this 9,000 BTU unit make the most sense?\u003c\/h3\u003e\n\u003cp\u003eWe mainly consider it for a clearly defined room or zone rather than trying to condition an entire floor made up of several enclosed bedrooms.\u003c\/p\u003e\n\u003cp\u003eA 250 sq. ft. office in \u003cstrong\u003eBoucherville\u003c\/strong\u003e, a primary bedroom in a \u003cstrong\u003eLaval\u003c\/strong\u003e condo, a small studio in \u003cstrong\u003eMontréal\u003c\/strong\u003e, or a room added to a home on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e are much more realistic scenarios than a large, partitioned ground floor.\u003c\/p\u003e\n\u003cp\u003eIn older homes, we also check the insulation before relying on floor area. A small space can have a surprisingly high heating or cooling load if two walls are exposed, the windows are old, or the room is directly beneath the roof.\u003c\/p\u003e\n\u003ch3\u003eThe indoor unit is compact and makes certain challenging projects easier\u003c\/h3\u003e\n\u003cp\u003eWith a width of only \u003cstrong\u003e28.43 in\u003c\/strong\u003e, a depth of \u003cstrong\u003e7.36 in\u003c\/strong\u003e, and a height of \u003cstrong\u003e11.42 in\u003c\/strong\u003e, the indoor evaporator is relatively compact. The outdoor unit measures approximately \u003cstrong\u003e30.12 × 11.93 × 21.85 in\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese dimensions may give us more options above a door or between two architectural features. Nevertheless, we must maintain the clearances specified by the manufacturer and sufficient access for maintenance.\u003c\/p\u003e\n\u003cp\u003eA unit installed too close to the ceiling can become difficult to clean. An outdoor unit wedged against a wall may lack adequate airflow. We prefer to anticipate these issues when preparing the quote rather than turn them into a service call a few years later.\u003c\/p\u003e\n\u003ch3\u003eMaintenance: small habits that protect performance\u003c\/h3\u003e\n\u003cp\u003eFor this type of mini-split, we recommend keeping the filters clean, visually checking the evaporator’s condition, monitoring drainage, and keeping the outdoor unit free of leaves, dust, snow, and vegetation.\u003c\/p\u003e\n\u003cp\u003eIn the Montreal area, drainage requires particular attention. In cooling mode, the indoor unit produces condensation water. An insufficient slope, a clogged drain, or a poorly chosen route can eventually lead to indoor water leakage.\u003c\/p\u003e\n\u003cp\u003eWhen the evaporator becomes loaded with dust or organic matter, a \u003cstrong\u003edeep cleaning of a wall-mounted heat pump\u003c\/strong\u003e restores airflow and cleans surfaces that cannot be reached during simple filter maintenance.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR, but not “cold-climate”\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENL-09CD-OL \/ SENL-09CD-ILL\u003c\/strong\u003e combination is listed as \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e-certified equipment, while also being explicitly identified as \u003cstrong\u003enot cold-climate\u003c\/strong\u003e in the current certification data. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis clarification is particularly important in Quebec because the terms ENERGY STAR and LogisVert are sometimes used as though they automatically mean that a heat pump qualifies for a rebate.\u003c\/p\u003e\n\u003cp\u003eThat is not the case.\u003c\/p\u003e\n\u003cp\u003eFor residential installations covered by the current \u003cstrong\u003eLogisVert\u003c\/strong\u003e rules, Hydro-Québec requires, among other things, that a heat pump installed on or after November 26, 2025, be ENERGY STAR certified and that the outdoor unit have a rated cooling capacity of at least \u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e. Since this model has a rated capacity of \u003cstrong\u003e9,000 BTU\/h\u003c\/strong\u003e, it does not meet this threshold for the current residential measure, even though it is ENERGY STAR certified. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe always verify the terms at the time of quoting, because program rules, eligible equipment lists, and rebate amounts may change.\u003c\/p\u003e\n\u003ch3\u003eWarranty: something to verify on the final quote\u003c\/h3\u003e\n\u003cp\u003eThe Senville brochure currently provided with this model indicates a \u003cstrong\u003e5-year manufacturer’s warranty on the compressor and 5 years on parts\u003c\/strong\u003e. Senville’s technical page also publishes this coverage for the 115 V SENL-09CD-L. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSome product listings, distributor promotions, or additional coverage may display different terms. At AirGreen, we therefore recommend relying on the \u003cstrong\u003ewarranty stated on the final quote for the exact unit\u003c\/strong\u003e, rather than on information from an older generation of LETO.\u003c\/p\u003e\n\u003cp\u003eThis is particularly relevant with this product line, as several SENL-09CD versions have existed, including R410A, R454B, 115 V, and 208\/230 V models.\u003c\/p\u003e\n\u003ch3\u003eWhy we do not compare purchase prices alone\u003c\/h3\u003e\n\u003cp\u003eThe LETO is positioned as a relatively accessible solution. However, the project’s actual cost also depends on the electrical work, piping length, outdoor support, line routing, working height, drainage, and the building’s specific characteristics.\u003c\/p\u003e\n\u003cp\u003eA less expensive unit placed in the wrong location can become a poor investment. Conversely, this \u003cstrong\u003eSENVILLE LETO 9,000 BTU 115 V\u003c\/strong\u003e can be a very sensible choice when installed in the right room and when the homeowner clearly understands its heating limit at approximately -15 °C.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, our role is precisely to determine whether this configuration suits the building rather than simply confirming that a mini-split can physically be installed on the wall.\u003c\/p\u003e\n\u003ch3\u003eOur practical verdict on the SENVILLE LETO 9,000 BTU 115 V\u003c\/h3\u003e\n\u003cp\u003eWe focus mainly on four features: its \u003cstrong\u003ecompact size\u003c\/strong\u003e, \u003cstrong\u003e115 V\u003c\/strong\u003e power supply, excellent indoor quietness, and \u003cstrong\u003e21.5 SEER2\u003c\/strong\u003e efficiency rating.\u003c\/p\u003e\n\u003cp\u003eIt is not our first choice for a homeowner who wants to maximize heating with their heat pump during Montreal’s extreme cold. For that purpose, a cold-climate-certified heat pump capable of operating at -25 °C or -30 °C will generally be better suited.\u003c\/p\u003e\n\u003cp\u003eHowever, for \u003cstrong\u003eefficiently cooling a small space\u003c\/strong\u003e, enjoying economical heating in milder temperatures, controlling the unit via Wi-Fi, and maintaining very low noise levels, the LETO offers a well-balanced combination.\u003c\/p\u003e\n\u003cp\u003eThe outcome then depends on what we do around the unit: sizing, positioning, electrical circuit, outdoor support, drainage, and piping \u003cstrong\u003e1\/4 – 3\/8\u003c\/strong\u003e, vacuuming, and commissioning.\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen quote for your SENVILLE LETO 9,000 BTU\u003c\/h3\u003e\n\u003cp\u003eFor a \u003cstrong\u003eSENVILLE LETO 9,000 BTU 115 V mini-split installation in Montreal, Laval, Longueuil, the South Shore, or the North Shore\u003c\/strong\u003e, contact AirGreen. We can assess your space, electrical panel, unit locations, line-set length, and actual heating and cooling needs to confirm whether this model is the right choice for your property.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119908860196,"sku":"SENL-09CD-OL","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_LETO_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789049836"},{"product_id":"mini-split-senville-leto-12000-btu-115v-montreal-laval-rive-sud","title":"SENVILLE LETO Mini-Split | 12000 BTU 115V | Montréal, Laval, South Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 12,000 BTU wall-mounted heat pump at 115 V designed for projects where electrical simplicity, comfort, and budget must remain well balanced\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE LETO 12,000 BTU 115 V\u003c\/strong\u003e meets a very practical need we regularly encounter in Greater Montreal: efficiently cooling a bedroom, office, condo, apartment, or reasonably sized living area while adding supplemental heating capacity, without necessarily installing a 208\/230 V unit.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003e115 V\u003c\/strong\u003e configuration deserves emphasis. It does not mean that the heat pump can simply be plugged into an existing wall outlet. The technical specifications require a \u003cstrong\u003eminimum circuit ampacity of 19 A and maximum overcurrent protection of 20 A\u003c\/strong\u003e. A dedicated electrical circuit compliant with the unit’s requirements must therefore be provided. However, in some buildings where a 115 V solution integrates more easily with the electrical design, this configuration can simplify planning.\u003c\/p\u003e\n\u003cp\u003eThe combination offered by AirGreen consists of the outdoor unit \u003cstrong\u003eSENL-12CD-OL\u003c\/strong\u003e and the indoor unit \u003cstrong\u003eSENL-12CD-ILL\u003c\/strong\u003e. It uses \u003cstrong\u003eR454B\u003c\/strong\u003e refrigerant, provides \u003cstrong\u003e12,000 BTU\u003c\/strong\u003e of cooling, operates in heating mode down to \u003cstrong\u003e-15°C\u003c\/strong\u003e, includes \u003cstrong\u003eWiFi\u003c\/strong\u003e, and features Inverter modulation rather than simple on-off operation.\u003c\/p\u003e\n\u003cp\u003eThe AHRI certificate corresponding to this combination bears number \u003cstrong\u003e215735287\u003c\/strong\u003e and officially confirms a rated cooling capacity of \u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e, a \u003cstrong\u003eSEER2 of 21.2\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 10.1\u003c\/strong\u003e, a rated heating capacity of \u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e, and an \u003cstrong\u003eHSPF2 Region IV of 8.7\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eKey specifications of the SENVILLE LETO 12,000 BTU 115 V\u003c\/h3\u003e\n\u003cp\u003eHere are the specifications we consider most important when a customer compares this heat pump with other wall-mounted systems:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eFeature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSENVILLE LETO 12,000 BTU 115 V\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor model\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSENL-12CD-OL\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndoor model\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSENL-12CD-ILL\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAHRI reference\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e215735287\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e115 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated cooling capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e2,200 to 12,300 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated heating capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e2,400 to 12,200 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSEER2\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e21,2\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEER2\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e10,1\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2 Region IV\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e8,7\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2 Region V\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e6,7\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated COP\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3,3\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating down to\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e-15°C\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eR454B\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMCA\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e19 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOP\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e20 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiping\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum indoor airflow\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e341.4 CFM\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndoor sound level\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e17.5 to 45 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor sound level\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e54 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiFi \/ smart control\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eAlexa included \/ compatible\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVertical louvers\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eAutomatic\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHorizontal louvers\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eAutomatic\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eSenville documentation also confirms a voltage range of \u003cstrong\u003e103.5 to 126.5 V\u003c\/strong\u003e, variable power consumption in cooling mode from \u003cstrong\u003e230 to 800 W\u003c\/strong\u003e and in heating mode from \u003cstrong\u003e200 to 1,230 W\u003c\/strong\u003e, which clearly illustrates the modulating operation of Inverter technology. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e115 V is a genuine advantage in some projects, but it must not be misinterpreted\u003c\/h3\u003e\n\u003cp\u003eThe term \u003cstrong\u003e115 V\u003c\/strong\u003e often draws attention because it recalls the common electrical circuits in a residence. On an HVAC job, however, all electrical specifications must be considered together.\u003c\/p\u003e\n\u003cp\u003eThis SENVILLE requires:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea \u003cstrong\u003eminimum ampacity of 19 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea maximum protection of \u003cstrong\u003e20 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea 115 V single-phase power supply;\u003c\/li\u003e\n\u003cli\u003ea communication cable specified by the manufacturer at \u003cstrong\u003e14 × 4 AWG\u003c\/strong\u003e between the units. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe therefore always check the electrical panel, the available circuit, and the wiring route before installation.\u003c\/p\u003e\n\u003cp\u003eA common example involves a condo or apartment where the owner wants to replace a window air conditioner with a genuine \u003cstrong\u003ewall-mounted heat pump\u003c\/strong\u003e. The fact that the new system is 115 V may be advantageous, but it does not mean that just any existing outlet can be used automatically. The circuit must be properly sized and protected.\u003c\/p\u003e\n\u003cp\u003eThis is exactly the kind of detail that helps avoid an apparently simple installation that later causes circuit-breaker trips or a non-compliant electrical installation.\u003c\/p\u003e\n\u003ch3\u003eAn especially wide modulation range for maintaining a stable temperature\u003c\/h3\u003e\n\u003cp\u003eA frequently overlooked specification is the minimum capacity.\u003c\/p\u003e\n\u003cp\u003eIn cooling mode, the LETO can modulate approximately from \u003cstrong\u003e2,200 to 12,300 BTU\/h\u003c\/strong\u003e. In heating mode, the published range is \u003cstrong\u003e2,400 to 12,200 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis ability to reduce its output becomes useful as the room approaches its setpoint temperature.\u003c\/p\u003e\n\u003cp\u003eA traditional heat pump that could operate only at full capacity would have to stop the compressor, wait for the temperature to drift, and then restart. An Inverter system can instead reduce its operating speed.\u003c\/p\u003e\n\u003cp\u003eIn a bedroom, office, or condo, this promotes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emore consistent indoor temperature;\u003c\/li\u003e\n\u003cli\u003efewer start-stop cycles;\u003c\/li\u003e\n\u003cli\u003eenergy consumption better suited to demand;\u003c\/li\u003e\n\u003cli\u003eimproved acoustic comfort when the unit operates at low speed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSenville also states that its DC Inverter technology can reduce energy consumption by up to \u003cstrong\u003e48 %\u003c\/strong\u003e under certain conditions compared with the references used by the manufacturer. This percentage should be considered a commercial indication that depends heavily on usage and the system being replaced, not as guaranteed savings in every home. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eSEER2 of 21.2: good air-conditioning efficiency\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSEER2 of 21.2\u003c\/strong\u003e is one of the appealing features of the 12,000 BTU LETO.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner who uses air conditioning extensively in \u003cstrong\u003eMontreal, Laval, Longueuil, or the South Shore\u003c\/strong\u003e, this seasonal efficiency allows the unit to provide a significant amount of cooling for the electricity consumed.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eEER2 of 10.1\u003c\/strong\u003e complements this information by measuring performance under a standardized operating condition.\u003c\/p\u003e\n\u003cp\u003eHowever, we recommend never comparing two heat pumps based solely on SEER2. For a Quebec project, you should also consider:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eheating performance;\u003c\/li\u003e\n\u003cli\u003eavailable capacity as the outdoor temperature decreases;\u003c\/li\u003e\n\u003cli\u003eHSPF2;\u003c\/li\u003e\n\u003cli\u003enoise level;\u003c\/li\u003e\n\u003cli\u003eminimum modulation capacity;\u003c\/li\u003e\n\u003cli\u003eENERGY STAR certification;\u003c\/li\u003e\n\u003cli\u003ethe outdoor temperature range;\u003c\/li\u003e\n\u003cli\u003eelectrical requirements;\u003c\/li\u003e\n\u003cli\u003ethe total installed cost.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is particularly true for this LETO, whose positioning differs from that of a wall-mounted heat pump specifically designed to serve as a primary heating source in very cold weather.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -15 °C: what this figure really means\u003c\/h3\u003e\n\u003cp\u003eSenville advertises heating operation down to \u003cstrong\u003e-15 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn the AirGreen product page for this combination, the listed capacity drops to approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e9,000 BTU\/h at -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6,600 BTU\/h at -15 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe listed COP is approximately \u003cstrong\u003e2.094 at -8 °C\u003c\/strong\u003e and \u003cstrong\u003e1.844 at -15 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThese figures are much more informative than simply stating “heating down to -15 °C.”\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-15 °C\u003c\/strong\u003e, the unit can still produce heat, but it no longer provides its rated 12,000 BTU. For a building in Quebec, this difference must be factored into the equipment selection.\u003c\/p\u003e\n\u003cp\u003eWe often see two possible uses.\u003c\/p\u003e\n\u003cp\u003eIn a condo heated primarily with electricity, the LETO can provide a significant portion of the heating during milder temperatures, while the existing electric system remains available when demand increases.\u003c\/p\u003e\n\u003cp\u003eIn an addition, basement, office, or commercial space, it can also provide very practical localized heating without necessarily being expected to handle the entire heating load on its own during the coldest days.\u003c\/p\u003e\n\u003ch3\u003eThis model is not an ENERGY STAR cold-climate heat pump.\u003c\/h3\u003e\n\u003cp\u003eIt is important to distinguish \u003cstrong\u003elow-temperature operating capacity\u003c\/strong\u003e from \u003cstrong\u003eENERGY STAR – Cold Climate certification\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis SENL-12CD-OL \/ SENL-12CD-ILL combination is not listed as ENERGY STAR or ENERGY STAR Cold Climate on the AirGreen product page.\u003c\/p\u003e\n\u003cp\u003eThis directly affects rebates.\u003c\/p\u003e\n\u003cp\u003eThe current \u003cstrong\u003eHydro-Québec LogisVert\u003c\/strong\u003e criteria provide financial assistance for heat pumps meeting the applicable ENERGY STAR certifications, with a higher amount for ENERGY STAR – Cold Climate units. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis 12,000 BTU 115 V LETO should therefore not be chosen primarily to obtain a LogisVert rebate when it does not meet the required certification. In a project where the rebate is a determining factor, we can compare its installed cost with that of an eligible model before making a decision.\u003c\/p\u003e\n\u003cp\u003eThis comparison is often more useful than looking only at the equipment’s purchase price.\u003c\/p\u003e\n\u003ch3\u003eAn indicative range of 450 to 750 sq. ft., to be used with caution\u003c\/h3\u003e\n\u003cp\u003eSenville presents the model as suitable for approximately \u003cstrong\u003e450 to 750 sq. ft.\u003c\/strong\u003e, particularly for bedrooms, offices, and living spaces. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis range is not a substitute for proper sizing.\u003c\/p\u003e\n\u003cp\u003eA 600 sq. ft. ground-floor home in a well-insulated building does not have the same heating and cooling load as an apartment of the same size on the top floor of an old Montreal triplex.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we take into account, among other things:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe number and size of the windows;\u003c\/li\u003e\n\u003cli\u003etheir orientation;\u003c\/li\u003e\n\u003cli\u003ethe insulation;\u003c\/li\u003e\n\u003cli\u003ethe floor on which the home is located;\u003c\/li\u003e\n\u003cli\u003ethe ceiling height;\u003c\/li\u003e\n\u003cli\u003ethe layout of the rooms;\u003c\/li\u003e\n\u003cli\u003ethe number of occupants;\u003c\/li\u003e\n\u003cli\u003eheat-generating appliances;\u003c\/li\u003e\n\u003cli\u003ethe intended use for heating.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eA properly sized and correctly positioned 12,000 BTU unit generally delivers better results than an oversized unit installed simply “to be safe.”\u003c\/p\u003e\n\u003ch3\u003e17.5 dB(A) at low speed: interesting for a bedroom or office\u003c\/h3\u003e\n\u003cp\u003eThe specifications indicate indoor sound levels of up to \u003cstrong\u003e45 dB(A)\u003c\/strong\u003e at high speed, decreasing to \u003cstrong\u003e17.5 dB(A)\u003c\/strong\u003e in its quietest mode. The outdoor unit is rated at \u003cstrong\u003e54 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis feature makes the LETO well suited for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea bedroom;\u003c\/li\u003e\n\u003cli\u003ea home office;\u003c\/li\u003e\n\u003cli\u003ea small condo;\u003c\/li\u003e\n\u003cli\u003ea living room where the unit is relatively close to the occupants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSleep mode also allows the setpoint to change gradually during the night. Senville specifically highlights quiet operation and Sleep mode for nighttime use. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe final sound level nevertheless depends on the installation. An outdoor unit mounted on a structure that may transmit vibrations can be more noticeable than a condenser properly installed on a suitable base or support.\u003c\/p\u003e\n\u003ch3\u003eAirflow and automatic louvers: two details that affect comfort\u003c\/h3\u003e\n\u003cp\u003eThe indoor airflow reaches approximately \u003cstrong\u003e341.4 CFM\u003c\/strong\u003e at maximum speed, with several intermediate levels of \u003cstrong\u003e309.0, 206.0, and 176.6 CFM\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specifications also indicate \u003cstrong\u003eautomatic control of the vertical and horizontal louvers\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis helps distribute the air rather than creating a concentrated jet in the same location.\u003c\/p\u003e\n\u003cp\u003eBut even a unit with good louvers cannot compensate for poor placement.\u003c\/p\u003e\n\u003cp\u003eIf the indoor unit is placed facing a wall a few feet away, behind a beam, or in a corner that prevents the air from reaching the rest of the residence, distribution will be limited.\u003c\/p\u003e\n\u003cp\u003eIn our \u003cstrong\u003ewall-mounted air conditioning projects in Montreal and Laval\u003c\/strong\u003e, we therefore pay close attention to airflow direction before confirming the final location.\u003c\/p\u003e\n\u003ch3\u003eA dehumidification capacity of 1.4 liters per hour\u003c\/h3\u003e\n\u003cp\u003eThe documentation states a moisture removal rate of approximately \u003cstrong\u003e1.4 L\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis feature is particularly useful during Quebec’s hot, humid periods.\u003c\/p\u003e\n\u003cp\u003eSummer comfort is not determined solely by temperature. A room maintained at 23°C with high humidity can remain uncomfortable. A properly sized heat pump generally has sufficient run times to remove humidity while cooling.\u003c\/p\u003e\n\u003cp\u003eThis is another reason to avoid excessive oversizing.\u003c\/p\u003e\n\u003ch3\u003eWiFi, Alexa, and remote scheduling\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWiFi is included\u003c\/strong\u003e in the configuration offered by AirGreen, and Senville indicates compatibility with Alexa. The system allows the temperature, schedules, and certain settings to be changed through an app or voice command. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe manufacturer includes, among other items:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe indoor unit;\u003c\/li\u003e\n\u003cli\u003ethe outdoor unit;\u003c\/li\u003e\n\u003cli\u003ethe wireless remote control;\u003c\/li\u003e\n\u003cli\u003ethe indoor-outdoor wiring harness;\u003c\/li\u003e\n\u003cli\u003ethe Alexa USB module;\u003c\/li\u003e\n\u003cli\u003ethe installation and operating manuals. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a second home or a residence whose occupants are regularly away, this feature can, for example, adjust the setpoint before returning home instead of continuously maintaining the same temperature.\u003c\/p\u003e\n\u003ch3\u003eR454B and 25-foot precharge\u003c\/h3\u003e\n\u003cp\u003eThis generation uses \u003cstrong\u003eR454B refrigerant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe heat pump is precharged for a line length of up to \u003cstrong\u003e25 feet\u003c\/strong\u003e. Senville indicates that an installation with a 50-foot kit requires refrigerant to be added on site by the installer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical specifications also confirm a 25 ft precharge and an outdoor unit weight of approximately 61.29 lb. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor this combination, AirGreen specifies 1\/4 in – 3\/8 in piping.\u003c\/p\u003e\n\u003cp\u003eDuring an installation, we must measure the actual route rather than arbitrarily choosing the piping length. A shorter, clean route is generally preferable, but the goal is also to avoid unnecessary bends, maintain a neat exterior finish, and keep the equipment accessible for future maintenance.\u003c\/p\u003e\n\u003ch2\u003eAn AirGreen installation designed around the building, not just around the heat pump\u003c\/h2\u003e\n\u003ch3\u003eA common use case in Greater Montreal\u003c\/h3\u003e\n\u003cp\u003eThe 12,000 BTU 115 V LETO is a good fit for a scenario we encounter often: a homeowner wants to remove a noisy window air conditioner from a bedroom, living room, or small dwelling while also gaining a heating function.\u003c\/p\u003e\n\u003cp\u003eIn this context, we do not look only at the wall where the customer would like to see the indoor unit.\u003c\/p\u003e\n\u003cp\u003eWe check the entire route:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eindoor unit → drain → refrigerant lines → wiring → outdoor unit → electrical supply.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA highly aesthetic indoor position can sometimes require a problematic drain or an unnecessarily long outdoor route. Conversely, choosing the location solely to reduce piping length can result in poor air distribution.\u003c\/p\u003e\n\u003cp\u003eThe right compromise must be decided before drilling.\u003c\/p\u003e\n\u003ch3\u003eDimensions to allow for\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e31.57 in × 7.44 in × 11.69 in.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e30.12 in × 11.93 in × 21.85 in.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese relatively compact dimensions facilitate several balcony, wall-mounted, or ground-level installations, but the required clearances around the condenser must always be maintained.\u003c\/p\u003e\n\u003cp\u003eIn particular, we must avoid placing the outdoor unit where:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003esnow may bury it;\u003c\/li\u003e\n\u003cli\u003edischarged air is immediately recirculated;\u003c\/li\u003e\n\u003cli\u003eservice access becomes impossible;\u003c\/li\u003e\n\u003cli\u003evibrations are transmitted directly to a bedroom;\u003c\/li\u003e\n\u003cli\u003ewater draining from heating cycles creates a problem on a walkway.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe errors we aim to avoid from the estimating stage\u003c\/h3\u003e\n\u003cp\u003eWith a wall-mounted heat pump, some errors are much more expensive to correct after installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoosing capacity based solely on square footage.\u003c\/strong\u003e\u003cbr\u003eFloor area is an indicator, not a load calculation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreating 115 V as power supplied by a standard outlet.\u003c\/strong\u003e\u003cbr\u003eThis LETO requires a circuit capable of handling its \u003cstrong\u003e19 A MCA\u003c\/strong\u003e and \u003cstrong\u003e20 A MOP\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChoosing this model assuming it is a -30 °C heat pump.\u003c\/strong\u003e\u003cbr\u003eThe published heating range goes down to \u003cstrong\u003e-15 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAssuming it is automatically eligible for LogisVert.\u003c\/strong\u003e\u003cbr\u003eThe combination is not listed as ENERGY STAR or ENERGY STAR – Cold Climate.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstalling the indoor unit without considering air distribution.\u003c\/strong\u003e\u003cbr\u003eAvailable capacity is useless if the airflow remains confined to a small area.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNeglecting drainage.\u003c\/strong\u003e\u003cbr\u003eA heat pump produces water in cooling mode. The drain must have a proper slope and route.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a point to confirm based on the coverage provided at the time of purchase\u003c\/h3\u003e\n\u003cp\u003eThe Senville brochure attached to this version indicates \u003cstrong\u003e5 years of warranty on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product page currently lists \u003cstrong\u003e10-10-0 years\u003c\/strong\u003e, with the possibility of an additional warranty.\u003c\/p\u003e\n\u003cp\u003eSince the terms may vary depending on product registration, the distributor’s program, and the coverage provided with the installation, we confirm the \u003cstrong\u003eexact applicable warranty\u003c\/strong\u003e at the time of the quote rather than relying solely on a general statement.\u003c\/p\u003e\n\u003cp\u003eThis check is particularly important when a customer is comparing two units whose prices appear similar.\u003c\/p\u003e\n\u003ch3\u003eWho do we primarily recommend the SENVILLE LETO 12,000 BTU 115 V to?\u003c\/h3\u003e\n\u003cp\u003eThis heat pump deserves consideration when the project primarily requires:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea capacity of \u003cstrong\u003e12,000 BTU\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea \u003cstrong\u003e115 V\u003c\/strong\u003e power supply;\u003c\/li\u003e\n\u003cli\u003egood cooling efficiency with \u003cstrong\u003eSEER2 21.2\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003equiet operation;\u003c\/li\u003e\n\u003cli\u003eInverter modulation;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWiFi\u003c\/strong\u003e and remote control;\u003c\/li\u003e\n\u003cli\u003eheating used down to approximately \u003cstrong\u003e-15 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea unit for a bedroom, office, condo, or medium-sized living area;\u003c\/li\u003e\n\u003cli\u003ea budget where obtaining a cold-climate heat pump subsidy is not necessarily the priority.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a homeowner whose top priority is \u003cstrong\u003every-low-temperature heating\u003c\/strong\u003e, \u003cstrong\u003eENERGY STAR – Cold Climate\u003c\/strong\u003e certification, or LogisVert financial assistance, we can also compare the LETO with other wall-mounted heat pumps that are better suited to this goal.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for installation\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, our work involves more than simply mounting a unit on the wall.\u003c\/p\u003e\n\u003cp\u003eWe verify the capacity, positioning, piping, drain, outdoor routing, condenser clearances, and electrical requirements to ensure the unit is truly suitable for the building.\u003c\/p\u003e\n\u003cp\u003eWe serve \u003cstrong\u003eMontréal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e, for both \u003cstrong\u003ewall-mounted heat pump installation\u003c\/strong\u003e and \u003cstrong\u003eHVAC service and maintenance\u003c\/strong\u003e needs.\u003c\/p\u003e\n\u003cp\u003eTo get an installation quote for the \u003cstrong\u003eSENVILLE LETO 12,000 BTU 115 V SENL-12CD-OL \/ SENL-12CD-ILL\u003c\/strong\u003e, compare this model with an ENERGY STAR heat pump eligible for current programs, or determine whether 12,000 BTU is suitable for your space, contact \u003cstrong\u003eAirGreen at 514-316-2973\u003c\/strong\u003e or \u003cstrong\u003e\u003ca class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003esales@airgreen.ca\u003c\/a\u003e\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119909155108,"sku":"SENL-12CD-OL","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_LETO_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_554f46f4-a785-4a85-91d8-0fafc025ffe1.png?v=1789049843"},{"product_id":"mini-split-senville-leto-9000-btu-220v-montreal-laval-rive-sud","title":"SENVILLE LETO Mini-Split | 9000 BTU 220V | Montréal, Laval, South Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA particularly appealing 9,000 BTU mini split when efficiency, quiet operation, and modulation matter more than size\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eIn a bedroom, office, small condo, studio, or enclosed room, installing an oversized heat pump can be just as problematic as installing an undersized unit. This is precisely the type of project in which the \u003cstrong\u003eSENVILLE 9,000 BTU 220 V\u003c\/strong\u003e, consisting of the \u003cstrong\u003eSENA-09HF-OG\u003c\/strong\u003e outdoor unit and the \u003cstrong\u003eSENA-09HF-IGG\u003c\/strong\u003e indoor unit, becomes appealing.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, when we evaluate a \u003cstrong\u003emini split installation in Montreal, Laval, Longueuil, on the South Shore or the North Shore\u003c\/strong\u003e, we never stop at the 9,000 BTU figure. We primarily examine the minimum modulation capacity, the room configuration, heat losses, airflow, the desired noise level, and how the unit will perform during long periods of heating or cooling.\u003c\/p\u003e\n\u003cp\u003eThe model shown on our AirGreen listing is associated with \u003cstrong\u003eAHRI 215735295\u003c\/strong\u003e, \u003cstrong\u003eR-454B\u003c\/strong\u003e refrigerant, a \u003cstrong\u003e220 V\u003c\/strong\u003e power supply, \u003cstrong\u003eWiFi included\u003c\/strong\u003e, as well as \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e and \u003cstrong\u003eENERGY STAR Cold Climate\u003c\/strong\u003e certifications.\u003c\/p\u003e\n\u003cp\u003eHowever, one technical clarification is warranted: the Senville documentation provided for the \u003cstrong\u003eSENA-09HF\u003c\/strong\u003e presents the product under the name \u003cstrong\u003eAURA Series\u003c\/strong\u003e, whereas our commercial page uses the name \u003cstrong\u003eLETO\u003c\/strong\u003e. For the detailed specifications below, we therefore rely primarily on the model numbers and the technical data corresponding to the \u003cstrong\u003eSENA-09HF\u003c\/strong\u003e, rather than on the series name alone. In the brochure, the product is identified as a \u003cstrong\u003e9,000 BTU\u003c\/strong\u003e heat pump mini split, ENERGY STAR certified and designed for heating and cooling. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy 9,000 BTU may be preferable to 12,000 BTU\u003c\/h3\u003e\n\u003cp\u003eIn several residential projects we encounter, the initial instinct is to ask for a larger unit “to be sure.”\u003c\/p\u003e\n\u003cp\u003eThis is not always the right approach.\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure recommends the SENA-09HF for spaces of approximately \u003cstrong\u003e100 to 450 sq. ft.\u003c\/strong\u003e, including small rooms and studios. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis area remains a general guideline, not an absolute rule. A 350 sq. ft. bedroom on the top floor of an older building in Montreal may have greater needs than a similar space located in the center of a newer condo in Laval.\u003c\/p\u003e\n\u003cp\u003eWe consider, in particular:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe quality of the insulation;\u003c\/li\u003e\n\u003cli\u003ethe number and size of the windows;\u003c\/li\u003e\n\u003cli\u003esun exposure;\u003c\/li\u003e\n\u003cli\u003ethe number of exterior walls;\u003c\/li\u003e\n\u003cli\u003ethe floor on which the room is located;\u003c\/li\u003e\n\u003cli\u003ethe ceiling height;\u003c\/li\u003e\n\u003cli\u003ethe circulation between the different zones;\u003c\/li\u003e\n\u003cli\u003eactual heating needs in winter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \u003cstrong\u003eminimum capacity\u003c\/strong\u003e is particularly important in a small space.\u003c\/p\u003e\n\u003cp\u003eAccording to the documentation, the system can modulate in cooling mode from approximately \u003cstrong\u003e3,000 to 10,500 BTU\/h\u003c\/strong\u003e, and in heating mode from approximately \u003cstrong\u003e3,100 to 11,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis allows the compressor to slow down when demand is low instead of operating at full capacity all the time.\u003c\/p\u003e\n\u003cp\u003eIn a small office or bedroom, this modulation can contribute to a more stable temperature and longer operating cycles, which is generally preferable to an oversized unit that starts and stops frequently.\u003c\/p\u003e\n\u003ch3\u003eHigh seasonal efficiency: SEER2 27.4\u003c\/h3\u003e\n\u003cp\u003eOne of the figures that distinguishes this model is its \u003cstrong\u003eSEER2 of 27.4\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe brochure also states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 14.5\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region 4: 13.9\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region 5: 9.8\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP: 3.55\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese values appear in the official SENA-09HF technical table. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSEER2\u003c\/strong\u003e is used to compare seasonal cooling efficiency. The higher it is, the less electricity the unit generally needs to produce a given amount of cooling under the standardized conditions used for certification.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eHSPF2\u003c\/strong\u003e relates more specifically to seasonal heating efficiency.\u003c\/p\u003e\n\u003cp\u003eFor homeowners in \u003cstrong\u003eMontreal, Laval, Longueuil, Boucherville, Terrebonne, and the North Shore\u003c\/strong\u003e, this second figure is particularly important, since a wall-mounted heat pump often operates much longer in heating mode than in cooling mode over the course of a full year.\u003c\/p\u003e\n\u003ch3\u003e9,000 BTU for cooling, but a different heating capacity\u003c\/h3\u003e\n\u003cp\u003eThe rated cooling capacity is \u003cstrong\u003e9,000 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eHowever, the manufacturer's documentation indicates a rated heating capacity of \u003cstrong\u003e9,800 BTU\/h\u003c\/strong\u003e, with a modulating range of \u003cstrong\u003e3,100 to 11,000 BTU\/h\u003c\/strong\u003e under the reference conditions used for the technical specifications. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn the AirGreen product page for the \u003cstrong\u003eSENA-09HF-OG \/ SENA-09HF-IGG\u003c\/strong\u003e units, we also have the following heating data:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e12,000 BTU at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e11,500 BTU at -15 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e5,100 BTU at -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese figures illustrate an important reality that we regularly discuss with our customers: a heat pump can continue operating in extremely cold weather without retaining its maximum capacity.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-30 °C\u003c\/strong\u003e, a rated capacity of 5,100 BTU represents actual heat output, but it may be insufficient on its own to cover the heat loss of a room or home during a cold snap.\u003c\/p\u003e\n\u003cp\u003eThat is why we avoid presenting the statement “heating down to -30 °C” as if it meant “full capacity at -30 °C.”\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure does indeed confirm a \u003cstrong\u003eminimum outdoor heating temperature of -30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy this distinction matters in Montreal’s climate\u003c\/h3\u003e\n\u003cp\u003eLet’s take a typical example: a 400 sq. ft. room in a newer condo in Laval and a room of the same size on the top floor of a 1950s Montreal duplex.\u003c\/p\u003e\n\u003cp\u003eThe floor area is identical.\u003c\/p\u003e\n\u003cp\u003eThe heating load can nevertheless be very different.\u003c\/p\u003e\n\u003cp\u003eIn the second case, heat losses through the walls, roof, and windows can be significantly higher. When the outdoor temperature drops below -20 °C, this difference becomes important.\u003c\/p\u003e\n\u003cp\u003eOur role is therefore to determine whether the \u003cstrong\u003e9,000 BTU SENVILLE\u003c\/strong\u003e can cover most of the demand or whether supplemental heating should remain available.\u003c\/p\u003e\n\u003cp\u003eThis is especially important for a heat pump installed in a bedroom, office, or home where the existing electric heating remains in place.\u003c\/p\u003e\n\u003ch3\u003eA unit designed for spaces where silence matters\u003c\/h3\u003e\n\u003cp\u003eNoise is often secondary when comparing specification sheets. In practice, it quickly becomes a priority when an indoor unit is installed a few metres from a bed or workstation.\u003c\/p\u003e\n\u003cp\u003eThe SENA-09HF documentation indicates the following sound levels for the indoor unit:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e45 dB(A) in Turbo mode\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e37 dB(A) at high speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e31 dB(A) at medium speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e23 dB(A) at low speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe corresponding airflow ranges from:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e425 CFM in Turbo mode\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e340 CFM at high speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e260 CFM at medium speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e200 CFM at low speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese figures are particularly relevant for a \u003cstrong\u003ewall-mounted heat pump for a bedroom\u003c\/strong\u003e, small living room, or office. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt low speed, the \u003cstrong\u003e23 dB(A)\u003c\/strong\u003e level is one of the most appealing technical features of this format.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit’s sound level is listed at \u003cstrong\u003e56 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eEven for an installation on a balcony or near a bedroom, we pay particular attention to the condenser’s placement, vibrations, and the structure to which it is attached.\u003c\/p\u003e\n\u003ch3\u003eCompact dimensions, but they should be verified before installation\u003c\/h3\u003e\n\u003cp\u003eSenville documentation indicates the following for the indoor unit:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e33.40 in × 9.18 in × 11.76 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e22.05 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e28.74 in × 11.02 in × 19.49 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e66.14 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe sheet currently published by AirGreen shows a different indoor dimension, namely \u003cstrong\u003e28.43 × 7.36 × 11.42 in\u003c\/strong\u003e, as well as an outdoor dimension of \u003cstrong\u003e30.12 × 11.93 × 21.85 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSince these measurements do not correspond exactly to the supplied brochure, the \u003cstrong\u003efinal dimensions must be confirmed on the technical sheet corresponding precisely to the delivered SENA-09HF-OG and SENA-09HF-IGG units before preparing clearance or an opening to the nearest millimeter\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis is exactly the type of detail we check before an installation when available space is limited.\u003c\/p\u003e\n\u003ch3\u003eAutomatic horizontal and vertical louvers\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003evertical louver: automatic\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ehorizontal louver: automatic\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis feature is important on a low-capacity unit intended to cover a specific room.\u003c\/p\u003e\n\u003cp\u003eGood airflow can help distribute heating or cooling more evenly, particularly in a rectangular living room or a space with a work area far from the unit.\u003c\/p\u003e\n\u003cp\u003eHowever, motorized louvers cannot correct a poor location.\u003c\/p\u003e\n\u003cp\u003eInstalling the evaporator above a large cabinet, directly facing a nearby partition, or in a corner where air remains trapped reduces distribution quality.\u003c\/p\u003e\n\u003ch3\u003eWiFi and Alexa control\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWiFi is included\u003c\/strong\u003e in the configuration presented by AirGreen.\u003c\/p\u003e\n\u003cp\u003eSenville documentation also mentions the \u003cstrong\u003eAlexa\u003c\/strong\u003e-compatible smart control, as well as control through an app that allows users to adjust the temperature and create schedules, among other functions. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a homeowner who uses the heat pump as the main source of heating for a room, scheduling can be especially convenient.\u003c\/p\u003e\n\u003cp\u003eFor example, in an office used from Monday to Friday, operating periods can be adjusted rather than leaving the same setting in place 24 hours a day.\u003c\/p\u003e\n\u003ch3\u003eBuilt-in diagnostics and leak detection\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer's documentation also mentions a \u003cstrong\u003eself-diagnostic and leak-detection system\u003c\/strong\u003e designed to facilitate the identification of certain issues. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis feature obviously does not replace a diagnosis performed by a refrigeration technician when a problem occurs.\u003c\/p\u003e\n\u003cp\u003eA drop in performance can have many causes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea clogged filter;\u003c\/li\u003e\n\u003cli\u003ea dirty heat exchanger;\u003c\/li\u003e\n\u003cli\u003ea drainage problem;\u003c\/li\u003e\n\u003cli\u003erestricted airflow;\u003c\/li\u003e\n\u003cli\u003ean electrical fault;\u003c\/li\u003e\n\u003cli\u003ea communication problem;\u003c\/li\u003e\n\u003cli\u003ean inadequate amount of refrigerant;\u003c\/li\u003e\n\u003cli\u003ean actual leak in the refrigeration circuit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAn error code is therefore a starting point for \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e or a \u003cstrong\u003eservice call\u003c\/strong\u003e, not a complete diagnosis on its own.\u003c\/p\u003e\n\u003ch3\u003eR-454B refrigerant and 1\/4 in – 3\/8 in lines\u003c\/h3\u003e\n\u003cp\u003eThis generation uses \u003cstrong\u003eR-454B refrigerant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates piping of:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe brochure specifies a refrigerant charge of \u003cstrong\u003e37.15 oz\u003c\/strong\u003e and a \u003cstrong\u003efactory charge intended for 25 feet of piping\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe manufacturer also indicates that a 50-foot line set requires additional refrigerant to be added on-site by the installer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor us, this detail is important.\u003c\/p\u003e\n\u003cp\u003eIn a simple installation, the indoor unit is sometimes directly on the other side of the wall from the condenser. But in a condo, duplex, or row house, the route can become much longer.\u003c\/p\u003e\n\u003cp\u003eWe must then take into account:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe actual piping length;\u003c\/li\u003e\n\u003cli\u003echanges in elevation;\u003c\/li\u003e\n\u003cli\u003ethe outdoor route;\u003c\/li\u003e\n\u003cli\u003emechanical protection;\u003c\/li\u003e\n\u003cli\u003efuture access for servicing;\u003c\/li\u003e\n\u003cli\u003ethe manufacturer's load specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e220 V power supply: pay attention to MCA and MOP values\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eVoltage: 220 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 12 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 15 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Senville brochure gives the following for the SENA-09HF:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e208\/230 V, 1 phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003evoltage range: 187 to 253 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMinimum Circuit Ampacity: 10 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003emaximum fuse: 15 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003econnection wiring: 14\/4 AWG\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHere again, we observe a difference between the \u003cstrong\u003eMCA value of 12 A shown on the AirGreen specification sheet\u003c\/strong\u003e and the value of \u003cstrong\u003e10 A in the supplied brochure\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor an electrical installation, we never choose the protection based on an approximate value found on a commercial page. We check the nameplate of the equipment delivered and the documentation applicable to the exact model number.\u003c\/p\u003e\n\u003cp\u003eThe maximum protection of \u003cstrong\u003e15 A\u003c\/strong\u003e is consistent between the two sources.\u003c\/p\u003e\n\u003ch2\u003eWhat we check at AirGreen before installing this SENVILLE 9,000 BTU\u003c\/h2\u003e\n\u003ch3\u003eA successful installation starts with the right location\u003c\/h3\u003e\n\u003cp\u003eDuring our work in \u003cstrong\u003eMontréal, Laval, Longueuil, on the South Shore and the North Shore\u003c\/strong\u003e, we regularly encounter homes where the owner knows exactly which room they want a heat pump in, but not necessarily which wall.\u003c\/p\u003e\n\u003cp\u003eThis decision strongly influences the outcome.\u003c\/p\u003e\n\u003cp\u003eFor a \u003cstrong\u003e9,000 BTU\u003c\/strong\u003e unit, we look for a location that allows:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ean unobstructed air discharge;\u003c\/li\u003e\n\u003cli\u003egood airflow in the occupied area;\u003c\/li\u003e\n\u003cli\u003ea logical condensate drain;\u003c\/li\u003e\n\u003cli\u003ea reasonable refrigeration line route;\u003c\/li\u003e\n\u003cli\u003eproper accessibility for future cleaning;\u003c\/li\u003e\n\u003cli\u003ean outdoor location suitable for snow and defrosting.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eDrainage is just as important as the refrigeration circuit\u003c\/h3\u003e\n\u003cp\u003eIn air conditioning and dehumidification, the evaporator produces water.\u003c\/p\u003e\n\u003cp\u003eThe brochure indicates a moisture removal capacity of \u003cstrong\u003e1.0 L\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis water must be drained properly.\u003c\/p\u003e\n\u003cp\u003eAn improperly positioned drain or insufficient slope can lead to problems unrelated to compressor quality: drainage noise, water accumulation, indoor leaks, or more difficult maintenance.\u003c\/p\u003e\n\u003cp\u003eWhen gravity drainage is not possible, we sometimes need to plan a different solution, notably a condensate pump suited to the project.\u003c\/p\u003e\n\u003ch3\u003eThe outdoor support must be designed for Quebec winters.\u003c\/h3\u003e\n\u003cp\u003eAn outdoor unit should not be installed like a simple air conditioner intended to operate only in July.\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003ewall-mounted heat pump used for heating\u003c\/strong\u003e produces water during defrost cycles.\u003c\/p\u003e\n\u003cp\u003eWe therefore take into account:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eheight above the ground;\u003c\/li\u003e\n\u003cli\u003esnow accumulation;\u003c\/li\u003e\n\u003cli\u003ewinter drainage;\u003c\/li\u003e\n\u003cli\u003eproximity to an entrance or walkway;\u003c\/li\u003e\n\u003cli\u003evibrations;\u003c\/li\u003e\n\u003cli\u003eaccess for maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOn the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e or the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e, a unit installed too low may become surrounded by snow during a major storm. On a Montreal balcony, the available space and the drainage of defrost water sometimes determine the configuration.\u003c\/p\u003e\n\u003ch3\u003eMaintenance of a 9,000 BTU unit should not be neglected because the appliance is small.\u003c\/h3\u003e\n\u003cp\u003eThe performance of a heat pump depends directly on airflow.\u003c\/p\u003e\n\u003cp\u003eDust-laden filters progressively restrict airflow. A dirty coil or blower wheel can also reduce performance and increase noise.\u003c\/p\u003e\n\u003cp\u003eWe therefore recommend:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eclean the filters regularly;\u003c\/li\u003e\n\u003cli\u003emonitor the condition of the indoor coil;\u003c\/li\u003e\n\u003cli\u003ekeep the outdoor unit clear;\u003c\/li\u003e\n\u003cli\u003echeck that no excessive snow or ice is blocking the condenser;\u003c\/li\u003e\n\u003cli\u003ehave a \u003cstrong\u003eprofessional HVAC maintenance service\u003c\/strong\u003e performed when the unit shows reduced performance, a persistent odor, or unusual noise levels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat warranty applies?\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years compressor – 10 years parts – 0 years labor\u003c\/strong\u003e, with the possibility of an additional warranty.\u003c\/p\u003e\n\u003cp\u003eThe Senville documentation provided, for its part, indicates \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe brochure also specifies that \u003cstrong\u003eprofessional installation is required to maintain warranty coverage\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSince the conditions may depend on registration, the sales channel, and the applicable program, we confirm the exact terms associated with the equipment sold at the time of quotation.\u003c\/p\u003e\n\u003ch3\u003eWhat about the LogisVert rebate?\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing includes a \u003cstrong\u003eLogisVert Provincial Rebate\u003c\/strong\u003e section, but no amount is currently specified for this configuration.\u003c\/p\u003e\n\u003cp\u003eWe prefer not to announce an unconfirmed amount.\u003c\/p\u003e\n\u003cp\u003eEligibility for rebate programs depends on the exact model, applicable certifications, and the rules in effect at the time of installation. Before basing a purchase decision on financial assistance, we therefore recommend verifying the current eligibility of the \u003cstrong\u003eSENA-09HF-OG \/ SENA-09HF-IGG\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eFor which projects would we choose this format?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE 9,000 BTU\u003c\/strong\u003e is particularly suitable when we need to condition a limited area without installing an oversized unit.\u003c\/p\u003e\n\u003cp\u003eFor example:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea primary bedroom;\u003c\/li\u003e\n\u003cli\u003ea small condo;\u003c\/li\u003e\n\u003cli\u003ea studio;\u003c\/li\u003e\n\u003cli\u003ea home office;\u003c\/li\u003e\n\u003cli\u003ean enclosed family room;\u003c\/li\u003e\n\u003cli\u003ea residential extension;\u003c\/li\u003e\n\u003cli\u003ea small commercial space;\u003c\/li\u003e\n\u003cli\u003ea problem room located far from the central system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a highly compartmentalized home, however, we must be realistic. A single wall-mounted unit cannot effectively distribute its heat behind several closed doors.\u003c\/p\u003e\n\u003cp\u003eIn this type of situation, we may recommend a different location, multiple units, or another \u003cstrong\u003eHVAC system\u003c\/strong\u003e configuration.\u003c\/p\u003e\n\u003ch3\u003eWho is this model less suitable for?\u003c\/h3\u003e\n\u003cp\u003eWe would be cautious about this 9,000 BTU model for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea large open area with high heat loss;\u003c\/li\u003e\n\u003cli\u003eseveral enclosed rooms that must be maintained at the same temperature;\u003c\/li\u003e\n\u003cli\u003ea space where the actual load significantly exceeds the available capacity;\u003c\/li\u003e\n\u003cli\u003ea project where heating at very low temperatures must cover 100% of the heat loss without any backup heat source.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAt \u003cstrong\u003e-30 °C\u003c\/strong\u003e, the AirGreen specifications indicate a maximum capacity of \u003cstrong\u003e5,100 BTU\u003c\/strong\u003e. This figure must therefore be considered in any serious heating analysis.\u003c\/p\u003e\n\u003ch3\u003eOur assessment of the SENVILLE 9,000 BTU\u003c\/h3\u003e\n\u003cp\u003eWhat stands out to us is not only its rated capacity.\u003c\/p\u003e\n\u003cp\u003eIt is mainly the combination of several features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2 of 27.4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region 5 of 9.8\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ecooling modulation down to approximately \u003cstrong\u003e3,000 BTU\/h\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eheating operation specified down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eindoor sound level as low as \u003cstrong\u003e23 dB(A)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eAlexa-compatible control according to the brochure;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eR-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e piping\n\u003c\/li\u003e\n\u003cli\u003erelatively light electrical circuit with maximum protection of \u003cstrong\u003e15 A\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a properly sized small area, this combination can produce a very different result from a heat pump chosen simply because it is “big enough.”\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we prefer to choose a capacity that matches the building, then install the unit so that it can perform properly at that capacity.\u003c\/p\u003e\n\u003ch3\u003eA good 9,000 BTU heat pump starts with proper sizing\u003c\/h3\u003e\n\u003cp\u003eIf you are considering the \u003cstrong\u003eSENVILLE 9,000 BTU 220 V Mini Split\u003c\/strong\u003e for a property in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, or Montérégie\u003c\/strong\u003e, we can check whether this capacity is truly suitable for your space, determine the best location for the indoor unit, and prepare an installation suited to the building.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen to obtain a quote, check the specifications of the SENA-09HF-OG \/ SENA-09HF-IGG model, confirm eligibility for available rebates, and schedule a professional HVAC installation in Greater Montreal.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119909384484,"sku":"SENA-09HF-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_LETO_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_e5ed19ae-3dcc-4634-bddb-6ffb0af9a541.png?v=1789049849"},{"product_id":"mini-split-senville-leto-12000-btu-220v-montreal-laval-rive-sud","title":"SENVILLE LETO Mini-Split | 12000 BTU 220V | Montréal, Laval, South Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA highly efficient 12,000 BTU format for heating and cooling a specific area without oversizing the installation\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eIn the residential projects we assess at \u003cstrong\u003eAirGreen in Montreal, Laval, Longueuil, on the South Shore and the North Shore\u003c\/strong\u003e, the category of \u003cstrong\u003e12,000 BTU wall-mounted heat pumps\u003c\/strong\u003e comes up constantly. The reason is simple: this capacity suits many primary bedrooms, living rooms, offices, condos, basements, and medium-sized spaces where an 18,000 or 24,000 BTU unit would be unnecessarily large.\u003c\/p\u003e\n\u003cp\u003eThe system associated with this AirGreen product page consists of the \u003cstrong\u003eSENA-12HF-OG\u003c\/strong\u003e outdoor unit and the \u003cstrong\u003eSENA-12HF-IGG\u003c\/strong\u003e indoor unit, with \u003cstrong\u003eAHRI 215735296\u003c\/strong\u003e certification. It operates on a \u003cstrong\u003e208\/230 V\u003c\/strong\u003e power supply, uses \u003cstrong\u003eR-454B\u003c\/strong\u003e refrigerant, includes WiFi, and holds \u003cstrong\u003eENERGY STAR®\u003c\/strong\u003e and \u003cstrong\u003eENERGY STAR® Cold Climate\u003c\/strong\u003e certifications.\u003c\/p\u003e\n\u003cp\u003eHowever, an important clarification must be made regarding the product name: \u003cstrong\u003ethe attached manufacturer documentation identifies the SENA-12HF as a model in the SENVILLE AURA series, not LETO\u003c\/strong\u003e. The brochure clearly presents the product as a “12000 BTU Mini Split Air Conditioner – Heat Pump – AURA Series” and uses the model number SENA-12HF. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e The technical specifications presented below therefore correspond to the \u003cstrong\u003eSENA-12HF documented by Senville\u003c\/strong\u003e. This designation should be standardized on the product page before publication to avoid any confusion for the customer.\u003c\/p\u003e\n\u003ch3\u003eA 12,000 BTU unit that covers far more than basic air-conditioning needs\u003c\/h3\u003e\n\u003cp\u003eSenville recommends this model for an indicative area of approximately \u003cstrong\u003e500 to 750 sq. ft.\u003c\/strong\u003e, positioning it as a solution intended for medium-sized rooms. The documentation also states a \u003cstrong\u003eSEER2 of 25.4\u003c\/strong\u003e, heating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, Alexa integration, quiet operation, and the requirement for professional installation to preserve warranty coverage. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, however, we always use recommended square-footage ranges with caution.\u003c\/p\u003e\n\u003cp\u003eA 650 sq. ft. room in a newer \u003cstrong\u003eBoucherville\u003c\/strong\u003e construction with good insulation, few windows, and standard ceilings does not necessarily have the same thermal load as a 650 sq. ft. space in an older building in \u003cstrong\u003eMontreal\u003c\/strong\u003e, with large windows, several exterior walls, and air infiltration.\u003c\/p\u003e\n\u003cp\u003eBefore a \u003cstrong\u003ewall-mounted heat pump installation\u003c\/strong\u003e, we consider factors such as the floor area, ceiling height, insulation, solar exposure, windows, the number of walls facing outdoors, and how the air will circulate.\u003c\/p\u003e\n\u003cp\u003eThis analysis is precisely what helps avoid two common mistakes: choosing a heat pump that is too small and runs constantly at maximum capacity, or installing a unit that is too large and reaches its setpoint too quickly without properly using its modulation.\u003c\/p\u003e\n\u003ch3\u003eAn inverter range of 3,500 to 13,500 BTU in cooling mode\u003c\/h3\u003e\n\u003cp\u003eThe nominal cooling capacity is \u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e, but the inverter compressor can modulate between approximately \u003cstrong\u003e3,500 and 13,500 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor heating, Senville indicates a nominal capacity of \u003cstrong\u003e13,000 BTU\/h\u003c\/strong\u003e, with a modulation range from \u003cstrong\u003e4,000 to 14,500 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis information is far more revealing than the simple figure “12,000 BTU.”\u003c\/p\u003e\n\u003cp\u003eWhen a room is warm in the early afternoon, the heat pump can increase its output. Once the desired temperature is reached, it can gradually reduce its output instead of constantly alternating between completely off and maximum operation.\u003c\/p\u003e\n\u003cp\u003eIn a properly sized installation, this modulation helps provide:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emore stable indoor temperature;\u003c\/li\u003e\n\u003cli\u003efewer noticeable variations between cycles;\u003c\/li\u003e\n\u003cli\u003ebetter acoustic comfort at low output;\u003c\/li\u003e\n\u003cli\u003eenergy consumption better matched to actual demand;\u003c\/li\u003e\n\u003cli\u003emore consistent dehumidification during the summer season.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor us, this is one of the reasons why \u003cstrong\u003eproper sizing of a 12,000 BTU heat pump\u003c\/strong\u003e is just as important as its efficiency ratings.\u003c\/p\u003e\n\u003ch3\u003eSEER2 25.4: a figure that puts efficiency at the heart of the project\u003c\/h3\u003e\n\u003cp\u003eSenville documentation states a \u003cstrong\u003eSEER2 of 25.4\u003c\/strong\u003e and an \u003cstrong\u003eEER2 of 13.5\u003c\/strong\u003e. For heating, it lists an \u003cstrong\u003eHSPF2-4 of 13.7\u003c\/strong\u003e, an \u003cstrong\u003eHSPF2-5 of 9.6\u003c\/strong\u003e, and a nominal COP of \u003cstrong\u003e3.45\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese ratings make it possible to compare units with similar capacities.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSEER2\u003c\/strong\u003e represents seasonal cooling efficiency. A higher rating is especially valuable when the unit will operate frequently during the summer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHSPF2\u003c\/strong\u003e relates more to seasonal heating performance and is highly relevant in Quebec, where a heat pump may accumulate far more operating hours in heating mode than in cooling mode.\u003c\/p\u003e\n\u003cp\u003eSenville also presents this model as \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e, with a design intended for cold climates. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhat -8 °C, -15 °C, and -30 °C really mean\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet provided for the \u003cstrong\u003eSENA-12HF-OG + SENA-12HF-IGG\u003c\/strong\u003e system indicates:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eOutdoor temperature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eStated heating capacity\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-8 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-15 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e11,500 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-30 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e5,900 BTU\/h maximum\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThese figures tell us much more about the performance of a Quebec heat pump than the simple statement “heating down to -30 °C.”\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-15 °C\u003c\/strong\u003e, the unit remains very close to its nominal output of 12,000 BTU. At \u003cstrong\u003e-30 °C\u003c\/strong\u003e, it can still produce heat, but its available capacity drops to approximately \u003cstrong\u003e5,900 BTU\/h maximum\u003c\/strong\u003e according to the AirGreen specification sheet.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer’s brochure also confirms a minimum outdoor operating temperature in heating mode of \u003cstrong\u003e-22 °F, or -30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a distinction we regularly make during our assessments at AirGreen. \u003cstrong\u003eOperating at -30 °C does not mean providing 12,000 BTU at -30 °C.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn a \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e home, the heat pump can therefore provide a significant portion of the heating for much of the winter, but the building’s needs must be compared with the capacity actually available when temperatures drop sharply.\u003c\/p\u003e\n\u003ch3\u003eAn interesting model for bedrooms, offices, living rooms, and condos\u003c\/h3\u003e\n\u003cp\u003eSenville’s recommended range of \u003cstrong\u003e500 to 750 sq. ft.\u003c\/strong\u003e provides a good general indication, but air distribution remains essential. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn our \u003cstrong\u003eHVAC installation\u003c\/strong\u003e work, we often see spaces that look similar on paper but require different solutions.\u003c\/p\u003e\n\u003cp\u003eIn an open-concept condo, a single 12,000 BTU unit can sometimes distribute air effectively throughout the living room, dining room, and part of the kitchen.\u003c\/p\u003e\n\u003cp\u003eIn a home with many separate rooms, the same capacity will not guarantee that air reaches a bedroom located behind two doors and a hallway.\u003c\/p\u003e\n\u003cp\u003eThat is why we do not promise that a single unit will heat or cool multiple rooms simply because their total area falls within a theoretical range.\u003c\/p\u003e\n\u003ch3\u003eAn airflow rate of up to 530 CFM\u003c\/h3\u003e\n\u003cp\u003eThe SENA-12HF offers four indoor airflow levels according to the brochure:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e530 CFM in Turbo, 410 CFM at high speed, 320 CFM at medium speed, and 240 CFM at low speed.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe corresponding sound levels are \u003cstrong\u003e47, 40, 34 and 24 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis range is particularly useful in a 12,000 BTU unit.\u003c\/p\u003e\n\u003cp\u003eWhen a room needs to be cooled quickly after prolonged exposure to the sun, Turbo mode can move more air. At night or when the temperature has stabilized, low-speed operation considerably reduces noise.\u003c\/p\u003e\n\u003cp\u003eFor a bedroom, home office, or living room, a stated minimum level of \u003cstrong\u003e24 dB(A)\u003c\/strong\u003e is therefore a concrete feature, provided that the unit is properly installed and does not have to operate constantly at maximum speed to compensate for incorrect sizing.\u003c\/p\u003e\n\u003ch3\u003eThe location of the louvers matters as much as their automation\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate \u003cstrong\u003eautomatic control of the vertical and horizontal louvers\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis helps distribute the air more evenly, but it does not correct a poor initial location.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we avoid positioning an indoor unit whenever possible so that it sends its main airflow directly:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003edirectly over a bed;\u003c\/li\u003e\n\u003cli\u003etoward a sofa located very close by;\u003c\/li\u003e\n\u003cli\u003eat a fixed workstation;\u003c\/li\u003e\n\u003cli\u003eagainst a partition directly opposite;\u003c\/li\u003e\n\u003cli\u003ein a direction opposite the main areas to be treated.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA wall-mounted heat pump works best when it can project its air through the depth of the space. The natural circulation of this air often matters more than a minor difference between two specification sheets.\u003c\/p\u003e\n\u003ch3\u003eDimensions: allow space before choosing the location\u003c\/h3\u003e\n\u003cp\u003eThe Senville brochure indicates for the indoor unit:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e33.4 in wide × 9.18 in deep × 11.76 in high\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith a weight of \u003cstrong\u003e24.25 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor the outdoor unit:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e30.31 in × 12.20 in × 21.65 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith a weight of \u003cstrong\u003e82.67 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese dimensions are important when the installation must be carried out above a door, between a window and an adjacent wall, or in a room where wall space is limited.\u003c\/p\u003e\n\u003cp\u003eOutside, we must also maintain the necessary clearances around the unit to ensure adequate heat exchange and facilitate future \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAn installation that is too close to a wall, beneath a structure, or in a cluttered space can impair operation even if the heat pump itself is correctly sized.\u003c\/p\u003e\n\u003ch2\u003eR-454B, WiFi, 220 V power supply, and installation: the details that make a difference in the field\u003c\/h2\u003e\n\u003ch3\u003eR-454B and refrigerant charge for 25 feet\u003c\/h3\u003e\n\u003cp\u003eThis version of the SENA-12HF operates with \u003cstrong\u003eR-454B\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe brochure indicates a charge of \u003cstrong\u003e40.92 oz\u003c\/strong\u003e and a factory charge intended for a piping length of up to \u003cstrong\u003e25 feet\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville also specifies that a configuration with a 50-foot line set requires additional refrigerant to be charged on site by the installer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis information is important because the actual routing length is not always the visible distance between the two units.\u003c\/p\u003e\n\u003cp\u003eAn indoor unit may be installed on a living room wall while the piping must rise, go around a window, pass through a structure, and descend toward the outdoor unit. The actual amount of piping may therefore be considerably greater than the straight-line distance measured.\u003c\/p\u003e\n\u003ch3\u003e1\/4 in – 3\/8 in piping: to be checked during a replacement\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet specifies \u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e piping.\u003c\/p\u003e\n\u003cp\u003eWhen replacing an old heat pump, we never assume that the existing piping can automatically be kept.\u003c\/p\u003e\n\u003cp\u003eWe must check its diameter, condition, routing, and compatibility with the new system. An existing line may appear visually suitable for reuse while not meeting the new unit’s technical requirements.\u003c\/p\u003e\n\u003cp\u003eIn some projects in \u003cstrong\u003eMontreal or Laval\u003c\/strong\u003e, this verification can make a significant difference when the lines run through finished walls or difficult-to-access areas.\u003c\/p\u003e\n\u003ch3\u003e208\/230 V, MCA 12 A, and maximum protection of 15 A according to the brochure\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer specifies a power supply:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith a voltage range of \u003cstrong\u003e187 to 253 V\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe brochure also indicates a \u003cstrong\u003eminimum circuit ampacity of 12 A\u003c\/strong\u003e and \u003cstrong\u003emaximum protection of 15 A\u003c\/strong\u003e. It specifies \u003cstrong\u003e14\/4 AWG\u003c\/strong\u003e connection wiring. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis data must be used to plan the electrical supply correctly.\u003c\/p\u003e\n\u003cp\u003eThe provided AirGreen specification sheet currently mentions an MCA of 13 A, while the attached manufacturer’s brochure indicates 12 A. For an actual installation, the requirements shown on the \u003cstrong\u003enameplate of the delivered equipment and in the applicable documentation\u003c\/strong\u003e must always be confirmed before electrical work begins.\u003c\/p\u003e\n\u003cp\u003eThis check is particularly important when replacing an older heat pump and the owner wants to reuse an existing circuit.\u003c\/p\u003e\n\u003ch3\u003eWiFi and Alexa: more than simple remote control\u003c\/h3\u003e\n\u003cp\u003eThe SENA-12HF is compatible with \u003cstrong\u003eAlexa\u003c\/strong\u003e and can be controlled through an app. The brochure indicates that settings can be changed remotely and operating schedules can be created. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe manufacturer includes a wireless remote control and an \u003cstrong\u003eAlexa USB Kit\u003c\/strong\u003e with the system, along with the indoor unit, outdoor unit, wiring harness, and manuals. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn everyday use, this connectivity becomes particularly practical for a heat pump installed in:\u003c\/p\u003e\n\u003cp\u003ea basement used only in the evening, a home office, a rental unit, a secondary residence, or an area that one wants to bring back to temperature before arriving.\u003c\/p\u003e\n\u003cp\u003eThe goal is not simply to control the unit with a phone. Consistent programming can also prevent maintaining the same temperature unnecessarily throughout all hours when no one is present.\u003c\/p\u003e\n\u003ch3\u003eDehumidification: a factor not to overlook during the Montreal summer\u003c\/h3\u003e\n\u003cp\u003eThe documentation indicates a moisture-removal capacity of \u003cstrong\u003e1.4 L\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn the humid climate of \u003cstrong\u003eMontreal, Laval, Longueuil, and Montérégie\u003c\/strong\u003e, this function contributes to comfort during hot periods.\u003c\/p\u003e\n\u003cp\u003eBut for it to work properly, condensate drainage must be properly designed.\u003c\/p\u003e\n\u003cp\u003eIn the field, an installation may be technically functional while later creating problems if the drain has insufficient slope, an unsuitable route, or an outlet exposed to the risk of blockage.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, drain routing is therefore part of the planning from the outset, just like the refrigerant piping and wiring.\u003c\/p\u003e\n\u003ch3\u003eSelf-diagnostics and leak detection: useful, but not a replacement for maintenance\u003c\/h3\u003e\n\u003cp\u003eSenville indicates that this model has \u003cstrong\u003eself-diagnostic and leak-detection functions\u003c\/strong\u003e, designed to report certain problems and facilitate maintenance. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese features are useful, but a wall-mounted heat pump must always be maintained.\u003c\/p\u003e\n\u003cp\u003eThe filters must be cleaned regularly. The evaporator must remain clean. The drain must maintain free flow. The outdoor unit must be able to breathe properly.\u003c\/p\u003e\n\u003cp\u003eA high-efficiency appliance whose airflow is reduced by dirty filters cannot fully deliver its rated performance.\u003c\/p\u003e\n\u003ch3\u003eA customer review that clearly illustrates the importance of professional installation\u003c\/h3\u003e\n\u003cp\u003eThe attached brochure includes a comment from a verified buyer dated August 27, 2026. The customer explains that they completed part of the work themselves because of their experience as an electrician, but hired an HVAC contractor to evacuate and charge the lines, an operation they considered outside their expertise and necessary for the warranty. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis testimonial aligns exactly with a reality we observe in installations.\u003c\/p\u003e\n\u003cp\u003eMounting a unit on a wall represents only a small part of the work. The final quality also depends on the refrigerant connection, evacuation, leak-tightness, evacuation to vacuum, charging, drainage, and commissioning.\u003c\/p\u003e\n\u003cp\u003eThis is when the quality of a \u003cstrong\u003eprofessional HVAC installation\u003c\/strong\u003e truly matters.\u003c\/p\u003e\n\u003ch3\u003eWarranty: verify the exact terms before sale\u003c\/h3\u003e\n\u003cp\u003eThe provided AirGreen document currently displays a warranty of \u003cstrong\u003e10 years on the compressor – 10 years on parts – 0 years on labor\u003c\/strong\u003e, with the possibility of additional protection.\u003c\/p\u003e\n\u003cp\u003eThe attached Senville brochure, for its part, indicates \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. This information appears both in the product presentation and in the technical table. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference must be clarified before publication or before presenting warranty coverage to the customer. Some warranties may depend on registration, the distributor, the applicable program, or the terms of sale.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we always prefer to confirm precisely what covers \u003cstrong\u003ethe compressor, parts, and labor\u003c\/strong\u003e, rather than leaving the customer to interpret a generic “10-year warranty” statement.\u003c\/p\u003e\n\u003ch3\u003eLogisVert rebate: $1,440 indicated on the AirGreen document\u003c\/h3\u003e\n\u003cp\u003eThe submitted document indicates a \u003cstrong\u003e$1,440 LogisVert provincial rebate\u003c\/strong\u003e, with an update dated \u003cstrong\u003eNovember 26, 2025\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt also provides the identifiers:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAHRI 215735296\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR® Cold Climate: yes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR ID: 3630043\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBecause rebate programs and their criteria may change, the actual applicable amount must be confirmed at the time of submission.\u003c\/p\u003e\n\u003cp\u003eFor us, the exact model numbers are essential during this verification. A difference of one letter or one indoor\/outdoor combination may correspond to a different certification and therefore different eligibility.\u003c\/p\u003e\n\u003ch3\u003eThe type of project where we favor a 12,000 BTU unit like this one\u003c\/h3\u003e\n\u003cp\u003eA typical scenario we encounter in the \u003cstrong\u003eGreater Montreal Area\u003c\/strong\u003e is a medium-sized main living space that becomes uncomfortable in summer and expensive to heat with electric baseboards during winter.\u003c\/p\u003e\n\u003cp\u003eThe homeowner often hesitates between a 12,000 BTU unit and a larger model “just to be sure.”\u003c\/p\u003e\n\u003cp\u003eOur approach is to verify the needs before increasing capacity.\u003c\/p\u003e\n\u003cp\u003eIf the calculation and building configuration correspond to 12,000 BTU, the modulation range of \u003cstrong\u003e3,500 to 13,500 BTU in cooling\u003c\/strong\u003e and \u003cstrong\u003e4,000 to 14,500 BTU in heating\u003c\/strong\u003e already allows for significant adjustment. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAutomatically moving up to 18,000 BTU may therefore be unnecessary, especially in a space where the actual load is much lower most of the time.\u003c\/p\u003e\n\u003cp\u003eConversely, if the goal is to treat several rooms separated by hallways and doors, we may recommend a different configuration rather than asking a single wall-mounted head to do a job that natural air circulation will not allow.\u003c\/p\u003e\n\u003ch3\u003eWhy entrust this project to AirGreen\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we install wall-mounted systems in very different buildings throughout \u003cstrong\u003eMontreal, Laval, Longueuil, Boucherville, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a heat pump in this category, we pay particular attention to \u003cstrong\u003esizing\u003c\/strong\u003e, the location of the indoor head, the \u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e line set, drainage, the electrical supply, the outdoor unit’s mounting, and future accessibility for maintenance.\u003c\/p\u003e\n\u003cp\u003eThe goal is not simply to turn on a 12,000 BTU unit. The goal is for it to modulate properly, distribute air efficiently, drain its condensate without problems, and deliver the performance for which it was designed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTo get a quote for the SENVILLE SENA-12HF R454B 12,000 BTU, confirm its suitability for your property, or compare this model with other wall-mounted heat pumps, contact AirGreen. We serve Montreal, Laval, Longueuil, the South Shore, and the North Shore for HVAC installation, replacement, and service.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119909646628,"sku":"SENA-12HF-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_LETO_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_d94faca6-d863-425e-bacb-fbd567514be0.png?v=1789049852"},{"product_id":"mini-split-senville-leto-18000-btu-montreal-laval-rive-sud","title":"SENVILLE LETO Mini-Split | 18000 BTU | Montréal, Laval, South Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eAn 18,000 BTU mini split designed for summer comfort, supplemental heating, and medium- to large-sized spaces\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE LETO 18,000 BTU\u003c\/strong\u003e occupies an interesting position in the ductless wall-mounted heat pump category. With a nominal capacity of \u003cstrong\u003e18,000 BTU in cooling mode\u003c\/strong\u003e, inverter technology, WiFi, relatively quiet operation, and \u003cstrong\u003eR-454B\u003c\/strong\u003e refrigerant, it is aimed at homeowners who want a simple solution for efficiently cooling a large space while also obtaining usable heating capacity down to \u003cstrong\u003e-15 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we often encounter this type of need in \u003cstrong\u003eMontreal, Laval, Longueuil, and the South Shore\u003c\/strong\u003e: an open-plan ground floor becomes difficult to cool in July, a large basement remains uncomfortable, or a living area on the second floor accumulates a great deal of heat in the afternoon. In this kind of situation, a 9,000 or 12,000 BTU unit may be too limited, whereas a properly sized 18,000 BTU unit offers more capacity without necessarily requiring a very large unit.\u003c\/p\u003e\n\u003cp\u003eThe model presented here combines the \u003cstrong\u003eSENL\/18CD\/OY\u003c\/strong\u003e outdoor unit with the \u003cstrong\u003eSENL\/18CD\/IY\u003c\/strong\u003e indoor unit. The AirGreen specification sheet lists \u003cstrong\u003eAHRI 207613967\u003c\/strong\u003e and a 220 V power supply.\u003c\/p\u003e\n\u003cp\u003eSenville’s official documentation classifies the SENL-18CD as an \u003cstrong\u003e18,000 BTU mini split heat pump\u003c\/strong\u003e designed for residential or commercial heating and cooling. The manufacturer indicates that it is ideally suited to spaces of approximately \u003cstrong\u003e700 to 1,000 sq. ft.\u003c\/strong\u003e, with heating operation down to \u003cstrong\u003e-15 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e18,000 BTU does not mean continuous operation at full capacity\u003c\/h3\u003e\n\u003cp\u003eAn essential feature of this SENVILLE LETO is its modulation capacity.\u003c\/p\u003e\n\u003cp\u003eAccording to the official technical table, the unit offers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e18,000 BTU\/h of nominal cooling capacity\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ecooling modulation of approximately \u003cstrong\u003e4,100 to 19,000 BTU\/h\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e18,800 BTU\/h of nominal heating capacity\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eheating modulation of approximately \u003cstrong\u003e6,200 to 20,200 BTU\/h\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePower consumption also varies according to demand: approximately \u003cstrong\u003e365 to 1,720 W in cooling mode\u003c\/strong\u003e and \u003cstrong\u003e380 to 1,850 W in heating mode\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation is one of the major advantages of \u003cstrong\u003eDC Inverter\u003c\/strong\u003e technology.\u003c\/p\u003e\n\u003cp\u003eAs the room temperature approaches the setpoint, the compressor does not need to run continuously at maximum capacity. It can slow down to maintain comfort more precisely. Senville also indicates that its inverter technology can reduce energy consumption by up to 48% under certain conditions compared with the benchmarks used by the manufacturer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, we prefer to consider this percentage an estimate that depends heavily on the building, the system being replaced, and usage habits. To compare units objectively, SEER2, EER2, and HSPF2 ratings remain much more useful.\u003c\/p\u003e\n\u003ch3\u003eSEER2 of 19.2: efficient air conditioning without targeting the cold-climate category\u003c\/h3\u003e\n\u003cp\u003eThe official table lists the following performance figures:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eFeature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSENVILLE LETO SENL-18CD\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated cooling capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e18,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated heating capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e18,800 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSEER2\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e19,2\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEER2\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e10,8\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2-4\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e9,6\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2-5\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e7,5\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated COP\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3,06\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdvertised minimum heating temperature\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e-15 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eR-454B\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThese values come from the technical table in the official Senville brochure. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAn \u003cstrong\u003eSEER2 of 19.2\u003c\/strong\u003e places this unit in an interesting category for homeowners who primarily want good air-conditioning performance and supplementary heating.\u003c\/p\u003e\n\u003cp\u003eHere, an important distinction must be made from certain Senville AURA models intended for cold climates. The AirGreen product page clearly indicates that this 18,000 BTU LETO is \u003cstrong\u003eneither ENERGY STAR nor ENERGY STAR Cold Climate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis does not mean that the unit does not heat. It does heat, but its design and winter operating range are different.\u003c\/p\u003e\n\u003ch3\u003eDown to -15 °C: what this really means in Quebec\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product page indicates a heating capacity down to \u003cstrong\u003e-15 °C\u003c\/strong\u003e, which is also confirmed by the Senville brochure. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe data displayed on the AirGreen product page indicate approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e11,500 BTU\/h at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e10,100 BTU\/h at -15 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is an important point.\u003c\/p\u003e\n\u003cp\u003eA heat pump may be able to operate at -15 °C without maintaining its full rated heating capacity. As the outdoor temperature drops, the building's heat loss increases, while the capacity of some heat pumps decreases.\u003c\/p\u003e\n\u003cp\u003eFor this reason, we generally consider the SENVILLE LETO 18,000 BTU to be a particularly interesting solution for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe \u003cstrong\u003eprimary air conditioning\u003c\/strong\u003e of a large area;\u003c\/li\u003e\n\u003cli\u003eheating during the fall and spring;\u003c\/li\u003e\n\u003cli\u003eheating during mild winter days;\u003c\/li\u003e\n\u003cli\u003ereducing the use of electric baseboard heaters when conditions permit;\u003c\/li\u003e\n\u003cli\u003esupplementary heating in a property equipped with another heat source.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a climate like \u003cstrong\u003eMontréal or Laval\u003c\/strong\u003e, we would not automatically select this model as the sole source of heating for an entire property.\u003c\/p\u003e\n\u003ch3\u003e700 to 1,000 sq. ft.: a useful indication, but not a sizing rule\u003c\/h3\u003e\n\u003cp\u003eSenville recommends this model for approximately \u003cstrong\u003e700 to 1,000 sq. ft.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis information is useful for establishing a preliminary estimate, but it does not replace a building analysis.\u003c\/p\u003e\n\u003cp\u003eTwo 900 sq. ft. spaces can require very different capacities.\u003c\/p\u003e\n\u003cp\u003eA newer 900 sq. ft. basement in \u003cstrong\u003eBoucherville\u003c\/strong\u003e with few windows may require much less cooling than an upper floor of the same size in Montreal with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003elarge southwest-facing windows;\u003c\/li\u003e\n\u003cli\u003ea roof directly exposed to sunlight;\u003c\/li\u003e\n\u003cli\u003eolder insulation;\u003c\/li\u003e\n\u003cli\u003ehigh ceilings;\u003c\/li\u003e\n\u003cli\u003eseveral occupants;\u003c\/li\u003e\n\u003cli\u003ecooking appliances or electronic devices that generate heat.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe also encounter another common situation: the owner wants to cool 900 sq. ft., but this area is divided among three bedrooms, a hallway, and a living room.\u003c\/p\u003e\n\u003cp\u003eThe BTU calculation may be correct even though the air distribution is not.\u003c\/p\u003e\n\u003cp\u003eA wall-mounted indoor unit installed in the living room cannot effectively push cold air through several closed doors. In this case, increasing the capacity is not necessarily the right solution.\u003c\/p\u003e\n\u003ch3\u003eAn airflow rate suited to large rooms\u003c\/h3\u003e\n\u003cp\u003eThe documentation specifies four indoor airflow levels:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e429.7 CFM in Turbo mode\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e388.5 CFM at high speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e259 CFM at medium speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e217.8 CFM at low speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe sound level ranges from approximately \u003cstrong\u003e24 dB(A)\u003c\/strong\u003e at low speed to \u003cstrong\u003e50.5 dB(A)\u003c\/strong\u003e in Turbo mode. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe minimum level of 24 dB(A) is particularly appealing at night or when the heat load is low.\u003c\/p\u003e\n\u003cp\u003eHowever, an 18,000 BTU unit must be able to move enough air when a room accumulates a great deal of heat. Turbo mode and the higher fan speeds may therefore be noticeably louder.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product sheet also indicates that the \u003cstrong\u003evertical and horizontal louvers are controlled automatically\u003c\/strong\u003e. This helps distribute the airflow throughout a large open area and prevents all the air conditioning from being concentrated along a single axis.\u003c\/p\u003e\n\u003ch3\u003eWiFi and Alexa included: useful for scheduling the unit according to your schedule\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE LETO is WiFi- and Alexa-compatible.\u003c\/p\u003e\n\u003cp\u003eThe brochure specifies that the user can, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eturn the unit on or off;\u003c\/li\u003e\n\u003cli\u003eadjust the temperature;\u003c\/li\u003e\n\u003cli\u003eschedule times;\u003c\/li\u003e\n\u003cli\u003econtrol the system remotely through the compatible app.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis feature can be particularly useful in an office, a residence, a cottage, or a property with varying occupancy schedules.\u003c\/p\u003e\n\u003cp\u003eRather than keeping the system constantly at a fixed temperature, the homeowner can adjust operating periods to the times when the home is actually occupied.\u003c\/p\u003e\n\u003ch3\u003eDehumidification function: up to 2.5 litres per hour\u003c\/h3\u003e\n\u003cp\u003eThe brochure indicates a moisture-removal capacity of \u003cstrong\u003e2.5 L\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is particularly relevant during humid days in July and August in the Greater Montreal Area.\u003c\/p\u003e\n\u003cp\u003eA heat pump does more than reduce the temperature. When operating in cooling mode, it also condenses some of the moisture contained in the air.\u003c\/p\u003e\n\u003cp\u003eThis significantly improves the feeling of comfort.\u003c\/p\u003e\n\u003cp\u003eA room at 23°C with high humidity can feel much more uncomfortable than a room at the same temperature with better-controlled humidity.\u003c\/p\u003e\n\u003cp\u003eThe dehumidification mode can therefore be useful when it is humid without necessarily being extremely hot.\u003c\/p\u003e\n\u003ch3\u003eUnit dimensions: what to plan for on the wall and outdoors\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e37.99 in × 8.46 in × 12.56 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e24.47 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e31.69 in × 12.99 in × 21.81 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith an approximate weight of \u003cstrong\u003e72.31 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe stated outdoor sound level is \u003cstrong\u003e56 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBefore a \u003cstrong\u003ewall-mounted heat pump installation in Montreal, Laval, or the South Shore\u003c\/strong\u003e, we must therefore plan for sufficient space around both units.\u003c\/p\u003e\n\u003cp\u003eThe indoor location must allow for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eadequate clearance for the airflow;\u003c\/li\u003e\n\u003cli\u003eaccess to the filters;\u003c\/li\u003e\n\u003cli\u003ethe opening of the front panel;\u003c\/li\u003e\n\u003cli\u003ea logical route for the piping and drain;\u003c\/li\u003e\n\u003cli\u003ea position that does not blow directly onto occupants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOutdoors, we must plan for service access, snow accumulation, and water drainage.\u003c\/p\u003e\n\u003ch2\u003eThe technical points AirGreen checks before installing the SENVILLE LETO 18,000 BTU\u003c\/h2\u003e\n\u003ch3\u003e1\/4 in – 1\/2 in piping and 25-foot precharge\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate \u003cstrong\u003e1\/4 in – 1\/2 in\u003c\/strong\u003e refrigerant piping.\u003c\/p\u003e\n\u003cp\u003eThe brochure specifies that the system is precharged with \u003cstrong\u003eR-454B for a length of up to 25 feet\u003c\/strong\u003e. A 50-foot set requires refrigerant to be added on-site by the installer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis information directly affects installation preparation.\u003c\/p\u003e\n\u003cp\u003eThe refrigerant line route must be planned before drilling through the wall. A shorter, more direct installation is generally preferable when possible, but the priority remains finding an indoor location that distributes air properly and an outdoor location that is compliant and accessible.\u003c\/p\u003e\n\u003ch3\u003eWhy R-454B changes installation methods\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE LETO uses \u003cstrong\u003eR-454B\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis refrigerant belongs to the A2L category, with characteristics different from those of R-410A, which was used for many years in residential heat pumps.\u003c\/p\u003e\n\u003cp\u003eFor the owner, this primarily means that the installation must not be improvised. Handling procedures, tools used, leak testing, and commissioning must be adapted to the refrigerant.\u003c\/p\u003e\n\u003cp\u003eThe quality of a \u003cstrong\u003eprofessional HVAC installation\u003c\/strong\u003e remains crucial for achieving the performance specified by the manufacturer.\u003c\/p\u003e\n\u003ch3\u003eProper evacuation protects the refrigeration circuit\u003c\/h3\u003e\n\u003cp\u003eOne of the most problematic mistakes when installing a mini-split is assuming that the system is ready simply because it has been precharged.\u003c\/p\u003e\n\u003cp\u003eThe factory charge refers to the refrigerant already contained in the outdoor unit. The pipes installed between the two units initially contain air and moisture.\u003c\/p\u003e\n\u003cp\u003eBefore releasing the refrigerant into the lines, the circuit must be properly prepared and evacuated.\u003c\/p\u003e\n\u003cp\u003eAn improperly executed installation can result in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ereduced performance;\u003c\/li\u003e\n\u003cli\u003eincorrect pressures;\u003c\/li\u003e\n\u003cli\u003ehigher electricity consumption;\u003c\/li\u003e\n\u003cli\u003elong-term problems for the compressor;\u003c\/li\u003e\n\u003cli\u003eservice calls that could have been avoided.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThat is why the quality of the refrigeration work is just as important as the choice of model.\u003c\/p\u003e\n\u003ch3\u003eCondensate drain: a detail that becomes essential during the summer\u003c\/h3\u003e\n\u003cp\u003eWith moisture removal of up to \u003cstrong\u003e2.5 L\/h\u003c\/strong\u003e, the drain must be installed correctly.\u003c\/p\u003e\n\u003cp\u003eWe favor gravity drainage with a continuous slope whenever the building configuration allows it.\u003c\/p\u003e\n\u003cp\u003eWhen a condensate pump is required, it must be accessible for maintenance.\u003c\/p\u003e\n\u003cp\u003eAn improperly installed drain can cause odors, noise, water leaks, or backflow toward the indoor unit. These are problems that can be avoided by planning the route properly from the start.\u003c\/p\u003e\n\u003ch3\u003eElectrical requirements: 208\/230 V, MCA 15 A, and MOP 20 A\u003c\/h3\u003e\n\u003cp\u003eThe official brochure states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epower supply \u003cstrong\u003e208\/230 V\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003esingle-phase, 60 Hz\u003c\/li\u003e\n\u003cli\u003evoltage range of \u003cstrong\u003e187 to 253 V\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA of 15 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003emaximum protection of \u003cstrong\u003e20 A\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe AirGreen datasheet also lists an \u003cstrong\u003eMCA of 15 A\u003c\/strong\u003e and an \u003cstrong\u003eMOP of 20 A\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe interconnection wiring specified in the documentation is \u003cstrong\u003e14\/4 AWG\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAs always, these data must be interpreted in accordance with the electrical requirements applicable to the actual installation. The power circuit, circuit breaker, and disconnect switch must match the nameplate data and applicable standards.\u003c\/p\u003e\n\u003ch3\u003eA common example in our assessments: a large ground-floor unit or a small multifunctional unit\u003c\/h3\u003e\n\u003cp\u003eA typical configuration we encounter at AirGreen is a house or condo ground floor of approximately 800 to 1,000 sq. ft. with a largely open living room, kitchen, and dining room.\u003c\/p\u003e\n\u003cp\u003eIn this type of layout, an \u003cstrong\u003e18,000 BTU mini-split\u003c\/strong\u003e can benefit from favourable air circulation.\u003c\/p\u003e\n\u003cp\u003eConversely, if this same area consists of several completely separate bedrooms, we consider other options before recommending a single wall-mounted head.\u003c\/p\u003e\n\u003cp\u003eThis distinction helps avoid a common mistake: purchasing enough BTUs on paper while completely overlooking how the air will actually circulate throughout the building.\u003c\/p\u003e\n\u003ch3\u003eLETO or cold-climate heat pump: choose according to your objective\u003c\/h3\u003e\n\u003cp\u003eThe 18,000 BTU SENVILLE LETO should not be confused with a heat pump designed primarily to maintain high heating capacity during severe Quebec cold.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen listing indicates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR: no\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR Cold Climate: no\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eheating down to \u003cstrong\u003e-15 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLETO is therefore particularly suitable for customers whose priority is \u003cstrong\u003eair conditioning\u003c\/strong\u003e, with the added benefit of efficient heating during a large part of the year.\u003c\/p\u003e\n\u003cp\u003eIf the main priority is instead to maximize heating at \u003cstrong\u003e-20 °C, -25 °C, or -30 °C\u003c\/strong\u003e, we generally examine models specifically designed for these conditions.\u003c\/p\u003e\n\u003cp\u003eThis distinction is essential for properly comparing the prices of different heat pumps. Two 18,000 BTU units may have very different winter performance.\u003c\/p\u003e\n\u003ch3\u003eWarranty: an important difference between the AirGreen listing and the brochure\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product listing provided for this combination indicates a warranty of:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years on the compressor – 10 years on parts – 0 years on labour.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, the attached Senville documentation indicates a standard warranty of \u003cstrong\u003e5 years on the compressor and 5 years on parts\u003c\/strong\u003e. This information appears both in the product presentation and in the technical table. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference must be confirmed at the time of purchase.\u003c\/p\u003e\n\u003cp\u003eAn extended warranty may depend on the sales channel, registration, a specific program, or the retailer’s terms. We therefore recommend verifying the exact coverage applicable to the equipment delivered and installed by AirGreen rather than automatically assuming that a generic warranty applies.\u003c\/p\u003e\n\u003ch3\u003eSubsidy: do not confuse an efficient mini-split with an eligible unit\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing currently does not show any confirmed LogisVert subsidy amount for this model.\u003c\/p\u003e\n\u003cp\u003eCela correspond au fait que le produit est affiché comme \u003cstrong\u003enon ENERGY STAR Cold Climate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis reflects the fact that the product is listed as \u003cstrong\u003enot ENERGY STAR Cold Climate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner comparing several heat pumps solely based on purchase price, this point can completely change the project’s net cost. A more expensive unit that qualifies for financial assistance can sometimes cost less after the rebate.\u003c\/p\u003e\n\u003ch3\u003eEligibility must always be verified using the exact model combination, the AHRI number, and the rules in effect at the time of installation.\u003c\/h3\u003e\n\u003cp\u003eFor which homeowner does this SENVILLE LETO make the most sense?\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWe consider this model particularly relevant for a customer looking for:\u003c\/li\u003e\n\u003cli\u003ea \u003cstrong\u003e18,000 BTU wall-mounted heat pump\u003c\/strong\u003e primarily for cooling;\u003c\/li\u003e\n\u003cli\u003esupplementary heating capacity down to approximately \u003cstrong\u003e-15 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003einstallation in an area of \u003cstrong\u003e700 to 1,000 sq. ft.\u003c\/strong\u003e, depending on the layout;\u003c\/li\u003e\n\u003cli\u003ea unit with \u003cstrong\u003eWiFi and Alexa\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eindoor operation reaching approximately \u003cstrong\u003e24 dB(A)\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ean inverter system;\u003c\/li\u003e\n\u003cli\u003ea 208\/230 V power supply;\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ea solution using the new \u003cstrong\u003eR-454B\u003c\/strong\u003e refrigerant.\u003c\/p\u003e\n\u003ch3\u003eIt is less suitable when the main objective is to completely replace the primary heating system during the coldest periods of Quebec winters.\u003c\/h3\u003e\n\u003cp\u003eWhy AirGreen installation makes a difference\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we do not limit our work to choosing the nominal capacity.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor a \u003cstrong\u003emini-split installation in Montréal, Laval, Longueuil, Boucherville, on the South Shore, or on the North Shore\u003c\/strong\u003e, we check, among other things:\u003c\/li\u003e\n\u003cli\u003ethe space’s thermal load;\u003c\/li\u003e\n\u003cli\u003enatural air circulation;\u003c\/li\u003e\n\u003cli\u003ethe location of the indoor head;\u003c\/li\u003e\n\u003cli\u003ethe piping route;\u003c\/li\u003e\n\u003cli\u003ethe drain slope;\u003c\/li\u003e\n\u003cli\u003ethe electrical supply;\u003c\/li\u003e\n\u003cli\u003eaccess to the outdoor unit;\u003c\/li\u003e\n\u003cli\u003ethe potential snow depth;\u003c\/li\u003e\n\u003cli\u003ethe expected noise level;\u003c\/li\u003e\n\u003cli\u003ethe heating performance actually required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SENVILLE LETO 18,000 BTU can be an excellent choice when these parameters match the building. Its \u003cstrong\u003eSEER2 of 19.2\u003c\/strong\u003e, inverter modulation, WiFi, nominal capacity of 18,000 BTU, and operation down to -15 °C provide a consistent combination for homeowners who primarily want to improve their cooling comfort while also benefiting from a heat pump for a good part of the heating season.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre you considering the SENVILLE LETO 18,000 BTU for your house, condo, office, or business? Contact AirGreen for a quote and to determine whether this capacity is truly suitable for your space. We serve Montréal, Laval, Longueuil, the South Shore, and the North Shore for the sale, installation, maintenance, and servicing of wall-mounted heat pumps.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119909679396,"sku":"SENL\/18CD\/OY","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_LETO_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_46135dcd-cf94-4c09-bef3-8128685c2403.png?v=1789049858"},{"product_id":"mini-split-senville-leto-24000-btu-montreal-laval-rive-sud","title":"SENVILLE LETO Mini-Split | 24000 BTU | Montréal, Laval, South Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 24,000 BTU unit that truly makes sense in large open areas, provided you look well beyond the nominal capacity\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE LETO 24,000 BTU R454B Mini Split\u003c\/strong\u003e is intended for an entirely different type of project than a small bedroom heat pump. With a nominal capacity of \u003cstrong\u003e24,000 BTU\/h\u003c\/strong\u003e, an airflow rate approaching 730 CFM, and an indoor unit more than 42 inches wide, this is an appliance designed to move enough air to condition a large living area, an open floor, a loft, a small commercial space, or certain residential spaces that are difficult to cool with a smaller unit.\u003c\/p\u003e\n\u003cp\u003eFor our \u003cstrong\u003ewall-mounted heat pump installations in Montreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e, we nevertheless emphasize one point: buying a 24,000 BTU unit because a space “seems large” is not a sizing method. This model can be highly effective when installed in the right building, but it can also be oversized in a better-insulated property or in an area where air circulation is restricted by several partitions.\u003c\/p\u003e\n\u003cp\u003eThe model pairing in question is specific:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENL-24CD-OL\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: SENL-24CD-ILL\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI reference: 215735291\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNominal capacity: 24,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe current AHRI certificate confirms that this combination is active, is sold in Canada, and lists a nominal cooling capacity of 24,000 BTU\/h, an \u003cstrong\u003eSEER2 of 18.7\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 10.0\u003c\/strong\u003e, a nominal heating capacity of 24,000 BTU\/h, and an \u003cstrong\u003eHSPF2 of 9.3 for Region IV\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThe technical specifications that truly define the 24,000 BTU LETO\u003c\/h3\u003e\n\u003cp\u003eSenville’s official brochure presents the SENL-24CD as a mini-split air conditioner with heat pump, rated at \u003cstrong\u003e24,000 BTU\u003c\/strong\u003e, offering a seasonal efficiency rating of \u003cstrong\u003e18.7 SEER2\u003c\/strong\u003e and a heating capacity advertised down to approximately \u003cstrong\u003e-15 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical sheet on page 4 provides especially useful information: the system does not operate constantly at 24,000 BTU. Its Inverter technology allows it to modulate its capacity across a wide range. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn air conditioning:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003enominal capacity: \u003cstrong\u003e24,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emodulation range: \u003cstrong\u003e5,500 to 24,200 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003elisted power consumption: \u003cstrong\u003e480 to 2,590 W\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003epublished operating current: \u003cstrong\u003e2.1 to 11.3 A\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn heating mode:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003enominal capacity: \u003cstrong\u003e24,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emodulation range: \u003cstrong\u003e6,300 to 27,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003elisted power consumption: \u003cstrong\u003e410 to 2,690 W\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003epublished current: \u003cstrong\u003e2.2 to 11.8 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eManufacturer-stated nominal COP: \u003cstrong\u003e3,31\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis modulation range matters greatly in a real \u003cstrong\u003eHVAC installation\u003c\/strong\u003e. When a large room needs only a fraction of the maximum capacity, the compressor can slow down rather than continually cycling on and off. This promotes a more stable temperature and better energy management.\u003c\/p\u003e\n\u003ch3\u003e18.7 SEER2: solid efficiency, but it must be interpreted correctly\u003c\/h3\u003e\n\u003cp\u003eAn \u003cstrong\u003eSEER2 of 18.7\u003c\/strong\u003e represents good efficiency for a 24,000 BTU mini-split in this category.\u003c\/p\u003e\n\u003cp\u003eHowever, this does not mean that a homeowner will automatically achieve a specific percentage of savings on their Hydro-Québec bill. Senville states that its DC inverter technology can reduce consumption by up to 48% in certain comparison scenarios, but this figure necessarily depends on the system being replaced and the operating conditions. The brochure describes this technology as automatically modulating power according to demand. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we prefer to explain the mechanism rather than promise universal savings.\u003c\/p\u003e\n\u003cp\u003eAn inverter compressor can reduce its speed as the temperature approaches the setpoint. In a properly insulated home in \u003cstrong\u003eBoucherville\u003c\/strong\u003e, for example, the system can operate for much of a summer day without reaching its maximum capacity.\u003c\/p\u003e\n\u003cp\u003eIn an older house in Montreal with several large south-facing windows, the same heat pump might have to work much harder.\u003c\/p\u003e\n\u003cp\u003eThe unit’s efficiency is therefore important, but you must also consider:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003ethe building’s airtightness;\u003c\/li\u003e\n\u003cli\u003esolar exposure;\u003c\/li\u003e\n\u003cli\u003ethe window area;\u003c\/li\u003e\n\u003cli\u003ethe ceiling height;\u003c\/li\u003e\n\u003cli\u003ethe layout of the rooms;\u003c\/li\u003e\n\u003cli\u003ethe number of occupants;\u003c\/li\u003e\n\u003cli\u003ethe actual heat load;\u003c\/li\u003e\n\u003cli\u003ethe requested temperature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat maximum area can a 24,000 BTU unit serve?\u003c\/h3\u003e\n\u003cp\u003eThe Senville brochure presents this model as suitable for approximately \u003cstrong\u003e1,000 to 1,250 sq. ft.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis statement warrants an important nuance.\u003c\/p\u003e\n\u003cp\u003eA wall-mounted unit does not distribute air like a central system equipped with ductwork. Even if the cooling capacity is sufficient for 1,200 sq. ft., the cool or warm air must physically reach the different zones.\u003c\/p\u003e\n\u003cp\u003eWe can therefore have two very different situations.\u003c\/p\u003e\n\u003ch4\u003eExample 1: Open-concept area on the South Shore\u003c\/h4\u003e\n\u003cp\u003eA 1,050 sq. ft. open-concept ground floor with a kitchen, dining room, and living room may be suitable for a 24,000 BTU unit if the load calculation confirms it. The indoor unit can project air over a long distance and effectively condition a large volume.\u003c\/p\u003e\n\u003ch4\u003eExample 2: Partitioned floor in Montreal\u003c\/h4\u003e\n\u003cp\u003eA 1,000 sq. ft. floor comprising four closed bedrooms and a long corridor may be much less suitable for a single wall-mounted unit. Even with 24,000 BTU available, air cannot pass through doors and walls.\u003c\/p\u003e\n\u003cp\u003eThis is an error we strive to avoid at AirGreen: \u003cstrong\u003eincreasing the BTU capacity does not solve an air distribution problem\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eStill-solid heating capacity at -8 °C and -15 °C\u003c\/h3\u003e\n\u003cp\u003eThis is one of the most interesting features of the SENL-24CD-OL \/ SENL-24CD-ILL.\u003c\/p\u003e\n\u003cp\u003eThe certification data associated with this pairing indicate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e24,000 BTU\/h at approximately 8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20,800 BTU\/h at approximately -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e17,000 BTU\/h at approximately -15 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOP of 2.14 at approximately -15 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn other words, at -15 °C, the unit retains approximately \u003cstrong\u003e71% of its rated heating capacity\u003c\/strong\u003e. The ENERGY STAR data currently published for this pairing also lists it as an \u003cstrong\u003eENERGY STAR certified cold-climate model\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis latter figure should be distinguished from the commercial brochure, which only advertises heating down to -15 °C. The certification applies to the specific pairing \u003cstrong\u003eSENL-24CD-OL + SENL-24CD-ILL\u003c\/strong\u003e, not simply to the name “LETO”.\u003c\/p\u003e\n\u003cp\u003eFor homeowners in Greater Montreal, this means that this model can provide a significant amount of heating during a good part of the winter.\u003c\/p\u003e\n\u003cp\u003eHowever, we do not position it in the same way as a heat pump whose manufacturer explicitly advertises operation down to -25 °C or -30 °C. In a property that relies heavily on the heat pump as its primary heating source, we always verify the building’s balance point and whether supplemental heating is available.\u003c\/p\u003e\n\u003ch3\u003eThe $2,496 LogisVert rebate: how the calculation works\u003c\/h3\u003e\n\u003cp\u003eThe capacity at -8 °C is particularly important in Quebec because Hydro-Québec uses this data to calculate the Heat Pump measure of its \u003cstrong\u003eLogisVert\u003c\/strong\u003e program.\u003c\/p\u003e\n\u003cp\u003eFor an ENERGY STAR-certified cold-climate heat pump, Hydro-Québec currently offers \u003cstrong\u003e$120 per 1,000 BTU\/h at -8 °C\u003c\/strong\u003e when all program conditions are met. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe certified capacity of the Senville LETO in question is \u003cstrong\u003e20,800 BTU\/h at -8 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe calculation is therefore:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e20.8 × $120 = $2,496\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis explains the amount of \u003cstrong\u003e2 496 $\u003c\/strong\u003e indicated for this unit.\u003c\/p\u003e\n\u003cp\u003eFor some eligible multi-unit residential buildings, the situation can become even more attractive. Since June 15, 2026, a bonus may increase the assistance to \u003cstrong\u003e$220 per 1,000 BTU\/h at -8 °C\u003c\/strong\u003e when an ENERGY STAR – Cold Climate wall-mounted heat pump is installed in a building meeting Hydro-Québec’s specific criteria. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt 20,800 BTU\/h, this would theoretically represent:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e20.8 × $220 = $4,576\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis amount applies only if all conditions of the multi-unit residential building component are met. At AirGreen, we always verify the exact model, address, building type, and program criteria before presenting financial assistance as guaranteed.\u003c\/p\u003e\n\u003ch2\u003eWhat we look at on site before installing a 24,000-BTU LETO\u003c\/h2\u003e\n\u003ch3\u003eAirflow completely changes the unit’s behavior\u003c\/h3\u003e\n\u003cp\u003eThe Senville LETO 24,000 BTU can provide an indoor airflow of approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e329.6 CFM at low speed\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400.2 CFM\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e529.7 CFM\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eup to \u003cstrong\u003e729.9 CFM in Turbo mode\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSound level naturally follows airflow: approximately \u003cstrong\u003e27 dB(A) at low speed\u003c\/strong\u003e, then 41.5, 45, and up to 54 dB(A) in Turbo mode. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe 27 dB(A) figure is particularly interesting during moderate operation. But in a large room that constantly forces the unit to operate in Turbo mode, the acoustic experience will obviously not be the same.\u003c\/p\u003e\n\u003cp\u003eThis is another reason to size the heat pump properly.\u003c\/p\u003e\n\u003ch3\u003eAn indoor unit significantly larger than a 9,000- or 12,000-BTU unit\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e42.52 in. × 8.90 in. × 13.19 in.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e30.64 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe outdoor condenser measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e35.04 in. × 13.46 in. × 26.50 in.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003efor a weight of approximately \u003cstrong\u003e94.58 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese dimensions directly affect our site preparation.\u003c\/p\u003e\n\u003cp\u003eIn some Montréal duplexes, the available wall space between a window and a door simply does not allow an indoor unit larger than 42 in. to be installed properly while maintaining the necessary clearances.\u003c\/p\u003e\n\u003cp\u003eOn the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e or in \u003cstrong\u003eLaval\u003c\/strong\u003e, the outdoor unit may also need to be positioned between a window, a fence, and a side passage. We must then maintain sufficient clearance around the heat exchanger and preserve future access for servicing.\u003c\/p\u003e\n\u003ch3\u003e3\/8 in – 5\/8 in piping: an essential detail when replacing a system\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENL-24CD-ILL\u003c\/strong\u003e uses \u003cstrong\u003e3\/8 in piping for the liquid line and 5\/8 in for the suction line\u003c\/strong\u003e. Senville confirms this combination for its 24,000 BTU units. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is particularly important when replacing an older mini-split.\u003c\/p\u003e\n\u003cp\u003eWe regularly meet customers who wish to keep the existing piping because it runs through a finished ceiling, a renovated basement, or a difficult-to-access façade.\u003c\/p\u003e\n\u003cp\u003eThe answer cannot be determined solely by looking at the length.\u003c\/p\u003e\n\u003cp\u003eWe check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe actual diameter of both lines;\u003c\/li\u003e\n\u003cli\u003etheir condition;\u003c\/li\u003e\n\u003cli\u003ecompatibility with the new refrigerant;\u003c\/li\u003e\n\u003cli\u003ethe absence of contamination;\u003c\/li\u003e\n\u003cli\u003ethe quality of the insulation;\u003c\/li\u003e\n\u003cli\u003ethe route;\u003c\/li\u003e\n\u003cli\u003ethe connections;\u003c\/li\u003e\n\u003cli\u003ethe total length.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAn older line set of \u003cstrong\u003e1\/4 in × 1\/2 in\u003c\/strong\u003e, for example, is not equivalent to the \u003cstrong\u003e3\/8 in × 5\/8 in\u003c\/strong\u003e piping specified for this 24,000 BTU unit.\u003c\/p\u003e\n\u003ch3\u003e25 ft precharge: beware of long installations\u003c\/h3\u003e\n\u003cp\u003eThe system is precharged with R454B for a length of up to \u003cstrong\u003e25 ft\u003c\/strong\u003e. The brochure specifies that an installation with a 50 ft kit requires additional refrigerant to be added on site by the installer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville also confirms that single-zone systems are precharged for 25 ft and that adding refrigerant becomes necessary when the total length exceeds the specified charge. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a detail we take very seriously at AirGreen.\u003c\/p\u003e\n\u003cp\u003eAn installation where the outdoor unit is placed on a rear balcony while the indoor unit is located on the opposite façade can quickly exceed a short standard line length. The charge adjustment must then be calculated and carried out correctly.\u003c\/p\u003e\n\u003ch3\u003eR454B: a new generation of refrigerant\u003c\/h3\u003e\n\u003cp\u003eThis version uses \u003cstrong\u003eR454B\u003c\/strong\u003e rather than the R410A used in older generations of LETO. The brochure and manufacturer confirm this refrigerant for the current SENL-24CD-L. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis distinction is important when comparing products online.\u003c\/p\u003e\n\u003cp\u003eOlder Senville LETO 24,000 BTU product sheets can still be found online stating:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eR410A;\u003c\/li\u003e\n\u003cli\u003eapproximately 15 SEER;\u003c\/li\u003e\n\u003cli\u003eolder dimensions;\u003c\/li\u003e\n\u003cli\u003eolder model numbers;\u003c\/li\u003e\n\u003cli\u003edifferent warranty;\u003c\/li\u003e\n\u003cli\u003eOptional Wi-Fi.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis information concerns previous generations and must not be confused with the \u003cstrong\u003eSENL-24CD-OL \/ SENL-24CD-ILL R454B\u003c\/strong\u003e pairing.\u003c\/p\u003e\n\u003cp\u003eFor us, the exact model number is always more reliable than the simple series name.\u003c\/p\u003e\n\u003ch3\u003eElectrical supply: a circuit to be verified before the installation date\u003c\/h3\u003e\n\u003cp\u003eThe brochure specifies a \u003cstrong\u003e208\/230 V single-phase, 60 Hz\u003c\/strong\u003e power supply, with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003evoltage range: \u003cstrong\u003e187 to 253 V\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMCA: 19 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emaximum protection: \u003cstrong\u003e20 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eindicated interconnection wiring: \u003cstrong\u003e14\/4 AWG\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe fact that a 24,000 BTU unit can operate with maximum 20 A protection is useful for electrical planning, but we never consider these few figures authorization to automatically reuse an existing circuit.\u003c\/p\u003e\n\u003cp\u003eThe panel, wiring, run length, and applicable requirements must be verified for each installation.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi and Alexa: convenient for a large living area or commercial space\u003c\/h3\u003e\n\u003cp\u003eThe LETO is compatible with \u003cstrong\u003eAlexa\u003c\/strong\u003e, and its smart control allows users to adjust the temperature, create routines, and manage the system remotely. The brochure explicitly indicates this integration. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a small commercial space or a secondary residence, this feature becomes especially useful.\u003c\/p\u003e\n\u003cp\u003eFor example, a homeowner can adjust the setpoint before arriving or check the system’s operation without being physically in front of the remote control.\u003c\/p\u003e\n\u003ch3\u003eAn AirGreen project in Montreal that clearly illustrates the choice of location\u003c\/h3\u003e\n\u003cp\u003eWe have already completed a \u003cstrong\u003eSenville LETO installation in Montreal\u003c\/strong\u003e in which our team paid particular attention to the positioning of the condenser and indoor unit.\u003c\/p\u003e\n\u003cp\u003eThe condenser had been mounted on a bracket to limit vibrations and maintain sufficient clearance around the heat exchanger. The indoor unit had been positioned to distribute air toward the central part of the living space rather than toward a nearby wall. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAlthough this documented project involved another capacity in the LETO range, the lesson applies directly to the 24,000 BTU model: \u003cstrong\u003ethe greater the airflow, the more the unit’s orientation matters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWe have also worked with LETO units in apartments in \u003cstrong\u003eRosemont–La Petite-Patrie\u003c\/strong\u003e, where the challenge was not only capacity, but also the available space and the need to maintain a discreet installation in a Montreal plex. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eErrors we seek to avoid with a 24,000 BTU unit\u003c\/h3\u003e\n\u003ch4\u003eChoosing 24,000 BTU simply because “bigger heats better”\u003c\/h4\u003e\n\u003cp\u003eAn oversized heat pump can quickly reach the requested temperature and then reduce or stop operating too often. In cooling mode, this can also impair humidity control.\u003c\/p\u003e\n\u003ch4\u003eInstalling the indoor unit in an enclosed hallway\u003c\/h4\u003e\n\u003cp\u003eA high capacity cannot make up for poor placement. The airflow must reach the areas that need heating or cooling directly.\u003c\/p\u003e\n\u003ch4\u003eNeglecting pipe size\u003c\/h4\u003e\n\u003cp\u003eThe 24,000 BTU LETO requires \u003cstrong\u003e3\/8 in × 5\/8 in\u003c\/strong\u003e piping. An existing line of another size does not become compatible simply because it is already installed in the wall.\u003c\/p\u003e\n\u003ch4\u003eConfusing the older and newer LETO generations\u003c\/h4\u003e\n\u003cp\u003eR410A, R454B, 15 SEER, 18.7 SEER2, older warranties: several versions are still circulating online. We always verify \u003cstrong\u003eSENL-24CD-OL + SENL-24CD-ILL\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003ePlacing the condenser too low\u003c\/h4\u003e\n\u003cp\u003eIn the Montreal region, snow and ice must be taken into account from the design stage. A condenser surrounded by snow in mid-January no longer has the airflow conditions specified by the manufacturer.\u003c\/p\u003e\n\u003ch3\u003eWarranty: clearly distinguish the manufacturer’s documentation from the protection offered to the customer\u003c\/h3\u003e\n\u003cp\u003eThe current Senville brochure indicates a \u003cstrong\u003e5-year manufacturer’s warranty on the compressor and 5 years on parts\u003c\/strong\u003e. This same coverage appears on the manufacturer’s current page. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product information sheet provided for this product, for its part, mentions coverage \u003cstrong\u003e10-10-0\u003c\/strong\u003e with the possibility of additional warranty coverage. It is therefore important that the final quotation clearly specify which protection applies to the project: the basic manufacturer’s warranty, a promotional program, distributor protection, or additional AirGreen coverage.\u003c\/p\u003e\n\u003cp\u003eFor the customer, the contractual document provided with the installation remains the reference document to keep with the serial numbers and invoice.\u003c\/p\u003e\n\u003ch3\u003eLETO 24,000 BTU maintenance: airflow must remain unobstructed\u003c\/h3\u003e\n\u003cp\u003eA unit capable of moving nearly 730 CFM must have clean coils and filters.\u003c\/p\u003e\n\u003cp\u003eWe particularly recommend:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eto clean the filters regularly;\u003c\/li\u003e\n\u003cli\u003eto monitor dust buildup on the evaporator;\u003c\/li\u003e\n\u003cli\u003eto keep the outdoor condenser clear of leaves, snow, and vegetation;\u003c\/li\u003e\n\u003cli\u003eto verify that the drain is properly removing water;\u003c\/li\u003e\n\u003cli\u003eto have the system inspected if its capacity appears to be declining;\u003c\/li\u003e\n\u003cli\u003eto schedule a \u003cstrong\u003edeep cleaning of the wall-mounted heat pump\u003c\/strong\u003e when the indoor coil becomes visibly dirty.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eA dirty filter does not only reduce airflow. It can also alter the system’s internal operating temperatures and reduce the heat pump’s actual capacity.\u003c\/p\u003e\n\u003ch3\u003eWhich customer do we primarily recommend this model for?\u003c\/h3\u003e\n\u003cp\u003eThe 24,000 BTU SENVILLE LETO is particularly well suited to a homeowner looking for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ehigh cooling capacity;\u003c\/li\u003e\n\u003cli\u003ea relatively open area;\u003c\/li\u003e\n\u003cli\u003ean Inverter unit;\u003c\/li\u003e\n\u003cli\u003ean efficiency rating of \u003cstrong\u003e18.7 SEER2\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003esignificant heating capacity down to approximately -15 °C;\u003c\/li\u003e\n\u003cli\u003ea system \u003cstrong\u003eR454B\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eWi-Fi\/Alexa compatibility;\u003c\/li\u003e\n\u003cli\u003ea heat pump eligible for LogisVert assistance when the program conditions are met;\u003c\/li\u003e\n\u003cli\u003ea generally more accessible budget than a high-end unit designed to provide heating down to -30 °C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a property where the main goal is to replace nearly all electric baseboards, even during extreme cold, we can also compare the LETO with wall-mounted heat pump models designed for lower outdoor temperatures.\u003c\/p\u003e\n\u003ch3\u003eWhy have this Senville installed by AirGreen?\u003c\/h3\u003e\n\u003cp\u003eAt AirGreen, our work goes beyond simply supplying the \u003cstrong\u003eSENVILLE LETO 24,000 BTU\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWe check the required capacity, unit placement, air distribution, electrical circuit, and piping \u003cstrong\u003e3\/8 – 5\/8\u003c\/strong\u003e, drainage, the total length of the refrigerant line, the R454B charge, and service clearances.\u003c\/p\u003e\n\u003cp\u003eWe install wall-mounted heat pumps throughout \u003cstrong\u003eGreater Montreal, Montreal, Laval, Longueuil, Boucherville, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e, where buildings vary enormously: century-old plexes, newer condos, single-family homes, businesses, apartments, and complete renovations.\u003c\/p\u003e\n\u003cp\u003eIt is precisely this diversity that has taught us that choosing the right heat pump never depends on a single value in a table.\u003c\/p\u003e\n\u003ch3\u003eRequest a quote for your 24,000 BTU SENVILLE LETO\u003c\/h3\u003e\n\u003cp\u003eAre you considering the \u003cstrong\u003eSENVILLE LETO 24,000 BTU R454B Mini Split\u003c\/strong\u003e for a house, condo, plex, or commercial space in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, or the North Shore\u003c\/strong\u003e?\u003c\/p\u003e\n\u003cp\u003eContact AirGreen for a quote. We can confirm sizing, check your electrical installation and piping, plan the location of the units, and verify the LogisVert financial assistance applicable to your project.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119909908772,"sku":"SENL-24CD-OL","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_LETO_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_824d2b47-485c-4b92-a584-20abcafb3338.png?v=1789049863"},{"product_id":"mini-split-senville-leto-30000-btu-montreal-laval-rive-sud","title":"SENVILLE LETO Mini-Split | 30000 BTU | Montréal, Laval, South Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003e30,000 BTU in a single wall-mounted unit: a solution designed for large open areas, provided the project is properly sized\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE LETO 30,000 BTU\u003c\/strong\u003e falls into a very different category from the 9,000, 12,000, or 18,000 BTU wall-mounted heat pumps that we commonly install in a bedroom, condo, or small living room. With a rated capacity of \u003cstrong\u003e30,000 BTU\/h\u003c\/strong\u003e, this unit is intended instead for \u003cstrong\u003elarge open areas, basements, commercial spaces, large living rooms, workspaces, and large residential areas\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we mainly consider this type of heat pump when a homeowner wants to treat a large volume with a single wall-mounted head. However, the question is never simply whether “30,000 BTU is enough.” It is also necessary to determine whether air can actually circulate throughout the area, whether the unit is properly sized, whether the electrical installation can power it, and whether its winter performance meets the homeowner’s expectations.\u003c\/p\u003e\n\u003cp\u003eThe combination offered consists of the \u003cstrong\u003eSENL-30CD-OL\u003c\/strong\u003e outdoor unit and the \u003cstrong\u003eSENL-30CD-ILL\u003c\/strong\u003e indoor unit. The official AHRI certificate bears the number \u003cstrong\u003e215735292\u003c\/strong\u003e and confirms that this combination is active and marketed in Canada, with a rated cooling capacity of \u003cstrong\u003e30,000 BTU\/h\u003c\/strong\u003e, a \u003cstrong\u003eSEER2 of 20.00\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 11.00\u003c\/strong\u003e, a rated heating capacity of \u003cstrong\u003e30,000 BTU\/h\u003c\/strong\u003e, and an \u003cstrong\u003eHSPF2 Region IV of 9.20\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eKey technical features to remember\u003c\/h3\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eFeature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSENVILLE LETO 30,000 BTU\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor unit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSENL-30CD-OL\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndoor unit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSENL-30CD-ILL\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAHRI reference\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e215735292\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated cooling capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e30,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e6,200 to 33,700 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated heating capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e30,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e11,800 to 33,700 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSEER2\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e20,0\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEER2\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e11,0\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2 Region IV\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e9,2\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2 Region V\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e6,9\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated COP\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3,0\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eR454B\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMCA\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e28 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum protection\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e30 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiping\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3\/8 in – 5\/8 in\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum indoor airflow\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e853.5 CFM\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDehumidification\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3.6 L\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndoor sound level\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e34 to 57 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor sound level\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e60.5 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiFi \/ Alexa\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eYes\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVertical louvers\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eAutomatic\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHorizontal louvers\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eAutomatic\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe Senville technical data sheet confirms, among other things, a power supply of \u003cstrong\u003e208\/230 V\u003c\/strong\u003e, a voltage range of 187 to 253 V, an MCA of 28 A, and a maximum protection of 30 A. It also documents the modulation ranges in heating and cooling modes. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eTrue modulation capacity despite the 30,000 BTU format\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e30,000 BTU\u003c\/strong\u003e rating does not mean that the compressor operates constantly at full capacity.\u003c\/p\u003e\n\u003cp\u003eIn cooling mode, the published range is \u003cstrong\u003e6,200 to 33,700 BTU\/h\u003c\/strong\u003e. In heating mode, it is \u003cstrong\u003e11,800 to 33,700 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation is important in a large open-concept area.\u003c\/p\u003e\n\u003cp\u003eLet’s consider a situation we regularly encounter during our estimates in \u003cstrong\u003eMontreal, Laval, Longueuil, and the South Shore\u003c\/strong\u003e: a finished basement becomes very hot after several hours of sunlight and activity. The heat pump can increase its output to bring the temperature back to the setpoint. Once the zone has stabilized, the Inverter can reduce its output rather than operating continuously according to an on-off cycle.\u003c\/p\u003e\n\u003cp\u003eThis helps improve:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003etemperature stability;\u003c\/li\u003e\n\u003cli\u003eelectricity consumption;\u003c\/li\u003e\n\u003cli\u003eacoustic comfort;\u003c\/li\u003e\n\u003cli\u003ecycle duration;\u003c\/li\u003e\n\u003cli\u003ehumidity control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSenville states that its Inverter technology automatically adjusts output according to demand and indicates, for this series, a potential consumption reduction of up to 20% depending on the comparison conditions used by the manufacturer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e1,250 to 1,500 sq. ft.: useful as a reference, but insufficient for choosing the capacity on its own\u003c\/h3\u003e\n\u003cp\u003eThe documentation presents the SENVILLE LETO 30,000 BTU as suitable for approximately \u003cstrong\u003e1,250 to 1,500 sq. ft.\u003c\/strong\u003e, particularly for large rooms, offices, and basements. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis indication should be used as a starting point, not as a sizing formula.\u003c\/p\u003e\n\u003cp\u003eA 1,400 sq. ft. basement in Laval that is largely open and located beneath a well-insulated house does not have the same needs as a 1,400 sq. ft. commercial space in Montreal with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ean exterior door that is frequently opened;\u003c\/li\u003e\n\u003cli\u003elarge display windows;\u003c\/li\u003e\n\u003cli\u003eseveral occupants;\u003c\/li\u003e\n\u003cli\u003ecomputers or equipment generating heat;\u003c\/li\u003e\n\u003cli\u003ehigher ceilings;\u003c\/li\u003e\n\u003cli\u003esignificant solar gains.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eConversely, a large unit installed in a highly compartmentalized space can produce a great deal of air without properly conditioning distant rooms.\u003c\/p\u003e\n\u003ch3\u003eA common mistake: trying to cool several closed bedrooms with a single 30,000 BTU indoor unit\u003c\/h3\u003e\n\u003cp\u003eThis is a point we often explain during estimates.\u003c\/p\u003e\n\u003cp\u003eA wall-mounted heat pump does not distribute air like a central ducted system. Installing a \u003cstrong\u003e30,000 BTU\u003c\/strong\u003e unit in a hallway does not mean that four bedrooms behind closed doors will each receive their share of the capacity.\u003c\/p\u003e\n\u003cp\u003eIn this scenario, adding BTUs is not necessarily the solution.\u003c\/p\u003e\n\u003cp\u003eWe need to consider:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe indoor unit’s position;\u003c\/li\u003e\n\u003cli\u003ethe direction of the airflow;\u003c\/li\u003e\n\u003cli\u003ethe layout of the space;\u003c\/li\u003e\n\u003cli\u003edoors and partitions;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003ethe number of zones actually requiring conditioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a large open-concept area, this LETO can be highly suitable. In a heavily compartmentalized home, a multi-zone system or several units may sometimes offer better room-by-room control.\u003c\/p\u003e\n\u003ch3\u003eAn airflow rate of 853.5 CFM in Turbo mode\u003c\/h3\u003e\n\u003cp\u003eA 30,000 BTU heat pump must move a significant amount of air.\u003c\/p\u003e\n\u003cp\u003eThe technical brochure indicates the following airflow rates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e853.5 CFM in Turbo mode\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e732.8 CFM at high speed\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e470.9 CFM at medium speed\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e353.2 CFM at low speed\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis airflow is why the indoor unit’s location must be planned carefully.\u003c\/p\u003e\n\u003cp\u003eIn a large rectangular room, we generally aim to use the length of the room rather than immediately directing the air toward a nearby wall. The \u003cstrong\u003eautomatic vertical and horizontal louvers\u003c\/strong\u003e then help distribute the airflow more evenly throughout the area.\u003c\/p\u003e\n\u003ch3\u003eSound level: the high airflow is naturally more noticeable\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE LETO 30,000 BTU has indoor sound levels of approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e57 \/ 51 \/ 44.5 \/ 34 dB(A)\u003c\/strong\u003e depending on the speed.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit is rated at \u003cstrong\u003e60.5 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTherefore, this heat pump should not be compared directly with a small bedroom unit capable of dropping below 20 dB(A). This is an appliance capable of moving up to more than 850 CFM.\u003c\/p\u003e\n\u003cp\u003eFor an installation near a bedroom, on a balcony, or in a narrow passage between two properties, we must also consider the position of the outdoor unit, vibrations, and sound reflection from nearby walls.\u003c\/p\u003e\n\u003ch3\u003eAn interesting dehumidification capacity\u003c\/h3\u003e\n\u003cp\u003eThe technical specifications indicate moisture removal of approximately \u003cstrong\u003e3.6 liters per hour\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is particularly relevant in \u003cstrong\u003elarge basements in Greater Montreal\u003c\/strong\u003e, where summer discomfort is often caused as much by humidity as by temperature.\u003c\/p\u003e\n\u003cp\u003eA properly sized unit can run long enough to cool the space and remove some of the humidity from the air.\u003c\/p\u003e\n\u003cp\u003eConversely, installing an oversized unit for the space can shorten operating cycles and reduce dehumidification quality.\u003c\/p\u003e\n\u003ch3\u003eHeating: the rated capacity must be distinguished from performance in extreme cold\u003c\/h3\u003e\n\u003cp\u003eThe LETO provides a rated heating capacity of \u003cstrong\u003e30,000 BTU\/h\u003c\/strong\u003e, with an advertised range reaching up to 33,700 BTU\/h under certain conditions. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, the accompanying commercial documentation presents this series as capable of heating down to \u003cstrong\u003e-15 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specifications also indicate approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e19,000 BTU\/h at -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e19,700 BTU\/h at -15 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis decrease compared with the nominal 30,000 BTU is normal: a heat pump’s available capacity can vary with the outdoor temperature.\u003c\/p\u003e\n\u003cp\u003eThat is why we avoid presenting the rated capacity as though it were available under all winter conditions.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR, but not the “cold climate” classification\u003c\/h3\u003e\n\u003cp\u003eThe SENL-30CD-OL \/ SENL-30CD-ILL combination is listed on our product page as ENERGY STAR, with identifier 4479008, but not as ENERGY STAR – Cold Climate.\u003c\/p\u003e\n\u003cp\u003eThis distinction is important for a Quebec homeowner.\u003c\/p\u003e\n\u003cp\u003eA heat pump can be efficient and ENERGY STAR certified without necessarily meeting the specific criteria for the cold-climate classification.\u003c\/p\u003e\n\u003cp\u003eFor someone primarily looking to reduce the use of electric baseboard heaters during very cold periods, we can therefore compare this LETO with a heat pump specifically certified for cold climates before making a decision.\u003c\/p\u003e\n\u003ch3\u003eSEER2 20 and HSPF2 9.2: how to interpret these values\u003c\/h3\u003e\n\u003cp\u003eThe official AHRI certificate confirms:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSEER2: 20.00\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEER2: 11.00\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSPF2 Region IV: 9.20\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSEER2\u003c\/strong\u003e measures seasonal cooling efficiency. \u003cstrong\u003eHSPF2\u003c\/strong\u003e concerns seasonal heating efficiency.\u003c\/p\u003e\n\u003cp\u003eThese values are mainly useful for comparing several pieces of equipment using standardized methods.\u003c\/p\u003e\n\u003cp\u003eOn their own, they do not make it possible to predict the exact amount of a Hydro-Québec bill. Actual consumption will depend, among other things, on the requested temperature, the building, insulation, number of hours of use, and the heating system being replaced or supplemented.\u003c\/p\u003e\n\u003ch3\u003eR454B and 3\/8 in – 5\/8 in piping\u003c\/h3\u003e\n\u003cp\u003eThis new version uses \u003cstrong\u003eR454B refrigerant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe brochure indicates that the system is precharged for up to \u003cstrong\u003e25 feet of refrigerant lines\u003c\/strong\u003e. For an installation using a 50-foot kit, the manufacturer specifies that an additional charge must be added on site by the installer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the 30,000 BTU combination, the specified piping is \u003cstrong\u003e3\/8 in – 5\/8 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe actual length must always be measured before installation. A project in which the indoor unit is on the second floor and the condenser is at the back of the building may require much more material than a back-to-back installation.\u003c\/p\u003e\n\u003ch3\u003eRequired electrical installation: 208\/230 V, MCA 28 A, MOP 30 A\u003c\/h3\u003e\n\u003cp\u003eThis 30,000 BTU LETO operates on a \u003cstrong\u003e208\/230 V single-phase\u003c\/strong\u003e power supply.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer's data indicates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMCA: 28 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003emaximum protection: 30 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003especified communication wiring: \u003cstrong\u003e14 × 4 AWG\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor our HVAC installations in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, and the North Shore\u003c\/strong\u003e, we therefore check the electrical panel before the work begins.\u003c\/p\u003e\n\u003cp\u003eAn available breaker in the panel is not always sufficient. You must ensure that the circuit, wiring, outdoor disconnect, and the entire electrical installation are suitable for the selected model.\u003c\/p\u003e\n\u003ch3\u003eAn indoor unit much larger than a 12,000 BTU unit\u003c\/h3\u003e\n\u003cp\u003eThe dimensions should also be checked before choosing the wall.\u003c\/p\u003e\n\u003cp\u003eThe indoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e49.57 in wide × 11.10 in deep × 14.25 in high\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIts weight is approximately \u003cstrong\u003e40.34 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e37.24 × 16.14 × 31.89 in\u003c\/strong\u003e,\u003c\/p\u003e\n\u003cp\u003efor a weight of approximately \u003cstrong\u003e150.35 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe are therefore far from the very compact format of a small 9,000 BTU heat pump.\u003c\/p\u003e\n\u003cp\u003eThe available width above windows, doors, bookcases, or cabinets must be checked, along with the necessary clearances around the units.\u003c\/p\u003e\n\u003ch2\u003eAirGreen installation: making the most of 30,000 BTU without creating an oversized or poorly distributed system\u003c\/h2\u003e\n\u003ch3\u003eA typical scenario: a large open basement on the South Shore\u003c\/h3\u003e\n\u003cp\u003eLet’s consider a project representative of what we see in properties in \u003cstrong\u003eBoucherville, Longueuil, Saint-Hubert, or Saint-Bruno\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe homeowner has a large basement comprising a family room, a workout area, and a workspace, but very few permanent partitions. In summer, humidity is high and the existing small air-conditioning solutions are no longer sufficient.\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003e30,000 BTU\u003c\/strong\u003e heat pump may be suitable if the load calculation justifies it and if we can position the unit to project air along the length of the space.\u003c\/p\u003e\n\u003cp\u003eThe same unit would be much less suitable if this basement were divided into five rooms whose doors generally remain closed.\u003c\/p\u003e\n\u003cp\u003eThis is why we always consider \u003cstrong\u003ethe building’s layout before the capacity listed on the unit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi and Alexa integration\u003c\/h3\u003e\n\u003cp\u003eThe 30,000 BTU LETO can be controlled remotely, and the brochure indicates integration with \u003cstrong\u003eAlexa\u003c\/strong\u003e, allowing users in particular:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eto turn the system on or off;\u003c\/li\u003e\n\u003cli\u003eto adjust the setpoint;\u003c\/li\u003e\n\u003cli\u003eto change the settings;\u003c\/li\u003e\n\u003cli\u003eto create schedules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Alexa USB module is one of the items listed in the product documentation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a store, office, or cottage, this feature can be particularly useful because it prevents the unit from running unnecessarily at the same setpoint during an extended absence.\u003c\/p\u003e\n\u003ch3\u003eLogisVert rebate: $950 listed on the AirGreen page, but the installation date remains decisive\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product page currently lists a \u003cstrong\u003e$950 LogisVert provincial rebate\u003c\/strong\u003e, according to its update dated November 26, 2025.\u003c\/p\u003e\n\u003cp\u003eThis value corresponds to the declared heating capacity at low temperatures and the rules applicable to the model when the information sheet was updated.\u003c\/p\u003e\n\u003cp\u003eNevertheless, the situation must be verified at the time of installation. Hydro-Québec specifies that heat pumps installed since \u003cstrong\u003eNovember 26, 2025, must be ENERGY STAR certified\u003c\/strong\u003e to be eligible, and that the list of models and the amounts may change over time. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore prefer to confirm the \u003cstrong\u003eAHRI number 215735292\u003c\/strong\u003e, the two exact models, and the scheduled installation date before presenting the final amount of financial assistance as guaranteed.\u003c\/p\u003e\n\u003ch3\u003eWarranty: an important difference to understand between the brochure and the AirGreen offer\u003c\/h3\u003e\n\u003cp\u003eThe Senville brochure provided for this model indicates a warranty of \u003cstrong\u003e5 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen listing, for its part, shows \u003cstrong\u003e10-10-0 years\u003c\/strong\u003e of coverage and indicates that an additional warranty may be available.\u003c\/p\u003e\n\u003cp\u003eThese two pieces of information must not be mixed up. Applicable coverage may depend on the warranty program, registration, and commercial terms associated with the installation. We therefore always confirm with the customer the \u003cstrong\u003eexact warranty stated on the quote\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat type of project do we primarily recommend the LETO 30,000 BTU for?\u003c\/h3\u003e\n\u003cp\u003eThis heat pump is particularly worth considering for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea \u003cstrong\u003elarge residential open-concept area\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea \u003cstrong\u003elarge basement\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea loft;\u003c\/li\u003e\n\u003cli\u003ea workshop;\u003c\/li\u003e\n\u003cli\u003ean office;\u003c\/li\u003e\n\u003cli\u003ea commercial space;\u003c\/li\u003e\n\u003cli\u003ea large common area;\u003c\/li\u003e\n\u003cli\u003ea space where high airflow is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is less suitable when a homeowner is primarily looking for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eheating several isolated bedrooms behind closed doors;\u003c\/li\u003e\n\u003cli\u003ea heat pump intended for primary heating during extreme cold;\u003c\/li\u003e\n\u003cli\u003ea very compact indoor unit;\u003c\/li\u003e\n\u003cli\u003ea unit specifically designed according to ENERGY STAR – Cold Climate criteria.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy professional sizing is especially important at 30,000 BTU\u003c\/h3\u003e\n\u003cp\u003eWith a small heat pump, an error of a few thousand BTUs can already reduce comfort. With a \u003cstrong\u003e30,000 BTU\u003c\/strong\u003e unit, a sizing error becomes even more significant.\u003c\/p\u003e\n\u003cp\u003eWe check, among other things:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ecooling load;\u003c\/li\u003e\n\u003cli\u003eheat losses;\u003c\/li\u003e\n\u003cli\u003ethe actual open area;\u003c\/li\u003e\n\u003cli\u003eair circulation;\u003c\/li\u003e\n\u003cli\u003eelectrical capacity;\u003c\/li\u003e\n\u003cli\u003ethe drain position;\u003c\/li\u003e\n\u003cli\u003ethe refrigerant line route;\u003c\/li\u003e\n\u003cli\u003ethe outdoor unit support;\u003c\/li\u003e\n\u003cli\u003eclearances;\u003c\/li\u003e\n\u003cli\u003efuture access for maintenance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWe aim to install the capacity required, not simply the highest capacity that can fit in the building.\u003c\/p\u003e\n\u003ch3\u003eHave AirGreen install the SENVILLE LETO 30,000 BTU\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we can verify whether the \u003cstrong\u003eSENVILLE LETO 30,000 BTU R454B SENL-30CD-OL \/ SENL-30CD-ILL\u003c\/strong\u003e is truly suitable for your space and compare this model with other heat pumps of similar capacity.\u003c\/p\u003e\n\u003cp\u003eWe serve \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e for \u003cstrong\u003ewall-mounted heat pump installation\u003c\/strong\u003e, residential and commercial HVAC projects, and after-sales service.\u003c\/p\u003e\n\u003cp\u003eTo obtain a quote, confirm the \u003cstrong\u003eLogisVert subsidy\u003c\/strong\u003e, plan the electrical supply, or determine whether 30,000 BTU is suitable for your building, contact \u003cstrong\u003eAirGreen at 514-316-2973\u003c\/strong\u003e or \u003cstrong\u003e\u003ca class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003esales@airgreen.ca\u003c\/a\u003e\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119910170916,"sku":"SENL-30CD-OL","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_LETO_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_6e164e02-6e63-47bb-9840-7239f9f76e8a.png?v=1789049872"},{"product_id":"mini-split-senville-leto-36000-btu-montreal-laval-rive-sud","title":"SENVILLE LETO Mini-Split | 36000 BTU | Montréal, Laval, South Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003e36,000 BTU in a single wall-mounted unit: a solution that requires as much attention to sizing as to installation\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e36,000 BTU SENVILLE LETO\u003c\/strong\u003e is not a mini-split intended for a small bedroom or enclosed office. With a rated capacity of \u003cstrong\u003e36,000 BTU\/h\u003c\/strong\u003e, an indoor unit nearly 50 inches wide, a \u003cstrong\u003e208\/230 V\u003c\/strong\u003e power supply, and \u003cstrong\u003e3\/8 in – 5\/8 in\u003c\/strong\u003e refrigerant piping, this is a wall-mounted heat pump designed for much larger spaces.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, this type of capacity makes the most sense in a \u003cstrong\u003elarge open-concept area, business, workshop, large basement, loft, or residential space with a high heating or cooling load\u003c\/strong\u003e. In Greater Montreal, however, the question is never simply whether 36,000 BTU is “enough.” We must determine whether this capacity can be distributed properly throughout the building and whether the heating performance meets the homeowner’s expectations during Quebec winters.\u003c\/p\u003e\n\u003cp\u003eThe configuration offered on our site uses the \u003cstrong\u003eSENL-36CD-OL\u003c\/strong\u003e outdoor unit and the \u003cstrong\u003eSENL-36CD-ILL\u003c\/strong\u003e indoor unit, associated with \u003cstrong\u003eAHRI 215735293\u003c\/strong\u003e. Senville documentation identifies the technical family under model \u003cstrong\u003eSENL-36CD-L\u003c\/strong\u003e and confirms that it is a \u003cstrong\u003e36,000 BTU LETO mini-split air conditioner and heat pump\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis precision is useful when a homeowner compares several documents: the suffixes may distinguish the indoor and outdoor components, while the general documentation groups the system under a series designation.\u003c\/p\u003e\n\u003ch3\u003eThe essential features of the 36,000 BTU SENVILLE LETO\u003c\/h3\u003e\n\u003cp\u003eThe official technical table on page 4 of the brochure provides a much more precise overview of the unit:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eRated cooling capacity: 36,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling range: 2,900 to 36,200 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating capacity: 36,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating range: 3,600 to 36,600 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 18\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 9\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region 4: 8.5\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region 5: 6.8\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP listed: 2.82\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 33 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum protection: 35 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003erefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003erefrigerant precharge: 25 feet\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003econnection wiring: 14\/4 AWG\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese values come directly from the Senville technical table. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen listing currently displays certain efficiency values in a concatenated format, including “118.030” for SEER2 and “19.020” for EER2. To avoid any ambiguity, we use the figures clearly presented in the official technical documentation here: \u003cstrong\u003e18 SEER2 and 9 EER2\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eA surprisingly wide modulation range for a 36,000 BTU unit\u003c\/h3\u003e\n\u003cp\u003eMaximum capacity naturally draws attention, but minimum capacity is almost as interesting.\u003c\/p\u003e\n\u003cp\u003eIn cooling mode, the compressor can go down to approximately \u003cstrong\u003e2,900 BTU\/h\u003c\/strong\u003e, according to the documentation. In heating mode, the published range starts at approximately \u003cstrong\u003e3,600 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis feature is important.\u003c\/p\u003e\n\u003cp\u003eA heat pump with \u003cstrong\u003eDC Inverter\u003c\/strong\u003e technology does not operate constantly at 36,000 BTU. It adjusts its output according to demand. The manufacturer also explains that its Inverter system modulates its operation in real time to maintain the desired temperature without constantly using its maximum capacity. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a large room that requires substantial cooling during a July day but very little during a cool evening, this modulation significantly improves the unit’s operation.\u003c\/p\u003e\n\u003cp\u003eIt also helps avoid an unnecessary succession of starts and stops when the load decreases.\u003c\/p\u003e\n\u003ch3\u003e1,250 to 1,800 sq. ft.: why this recommendation should be interpreted with caution\u003c\/h3\u003e\n\u003cp\u003eSenville presents the LETO 36,000 BTU as suitable for spaces of approximately \u003cstrong\u003e1,250 to 1,800 sq. ft.\u003c\/strong\u003e, particularly large rooms and living areas. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we use this figure only as an initial guideline.\u003c\/p\u003e\n\u003cp\u003eA wall-mounted mini-split does not have a duct network. Even with a capacity of 36,000 BTU, it cannot efficiently move its air through multiple walls, hallways, and closed doors.\u003c\/p\u003e\n\u003cp\u003eLet’s consider two 1,500-square-foot properties.\u003c\/p\u003e\n\u003cp\u003eThe first is a loft with the kitchen, living room, and dining room combined into a single space. A high-capacity wall-mounted unit may have access to much of the space.\u003c\/p\u003e\n\u003cp\u003eThe second is a bungalow with four bedrooms, several hallways, and doors that are regularly closed. Even if the total square footage is identical, a single 36,000 BTU wall-mounted heat pump does not automatically distribute its 36,000 BTU to each room.\u003c\/p\u003e\n\u003cp\u003eThis is a situation we regularly explain during our assessments of \u003cstrong\u003ewall-mounted heat pumps in Montreal, Laval, Longueuil, and the South Shore\u003c\/strong\u003e: \u003cstrong\u003eheating capacity and air distribution are two different problems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eA nearly 50-inch-wide unit: its location must be decided before installation\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e49.57 in wide × 11.10 in deep × 14.25 in high\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e40.34 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e37.24 in × 16.14 in × 31.89 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith a weight of \u003cstrong\u003e142.86 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese dimensions significantly change the installation planning compared with a 9,000 or 12,000 BTU mini-split.\u003c\/p\u003e\n\u003cp\u003eA wall that seems large enough in a photograph can become much more restrictive when we need to plan:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe actual width of the evaporator;\u003c\/li\u003e\n\u003cli\u003ethe required clearances;\u003c\/li\u003e\n\u003cli\u003ethe piping outlet;\u003c\/li\u003e\n\u003cli\u003eaccess for maintenance;\u003c\/li\u003e\n\u003cli\u003ethe direction of the airflow;\u003c\/li\u003e\n\u003cli\u003ethe aesthetics of the installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe outdoor unit's weight is also significant. At nearly \u003cstrong\u003e143 lb\u003c\/strong\u003e, the choice of a wall bracket or ground stand must be suitable for this equipment category.\u003c\/p\u003e\n\u003cp\u003eA verified buyer quoted in the Senville brochure specifically points out that the unit is bulky, requires considerable space, and that the lines are relatively difficult to bend, while also noting that the unit performs as expected. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is practical feedback that reflects an installation reality: \u003cstrong\u003ea 36,000 BTU heat pump is not handled like a small wall-mounted unit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e3\/8-inch – 5\/8-inch piping: a major detail on the job site\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen configuration indicates 3\/8-inch – 5\/8-inch piping.\u003c\/p\u003e\n\u003cp\u003eWith a 5\/8-inch gas line, bends, changes in direction, and tight passages require more planning. This becomes especially important in Montreal plexes, South Shore townhouses, condominiums, or projects where the refrigerant line must go around a door, window, or balcony.\u003c\/p\u003e\n\u003cp\u003eThe documentation also indicates that the unit is \u003cstrong\u003eprecharged for 25 feet of piping\u003c\/strong\u003e. For a 50-foot set, Senville specifies that an additional R-454B charge must be added on site by the installer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore need to know the actual line-set length before commissioning.\u003c\/p\u003e\n\u003cp\u003eThis is not merely a matter of the amount of copper. A professional installation requires proper work on the connections, circuit preparation, leak testing, and commissioning according to the manufacturer's specifications.\u003c\/p\u003e\n\u003ch3\u003eR-454B: the refrigerant generation used by this LETO\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE LETO 36,000 BTU uses R-454B\u003c\/strong\u003e. The technical table also confirms a factory charge intended for 25 feet. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis information must be taken into consideration during installation and service, particularly because the equipment, work procedures, and handling of the refrigeration circuit must correspond to the refrigerant used by the system.\u003c\/p\u003e\n\u003cp\u003eFor a customer, the key point is simpler: this is not an older model that uses a previous-generation refrigerant. The technician must therefore use the appropriate methods and tools.\u003c\/p\u003e\n\u003ch3\u003e33 A MCA and 35 A maximum protection: check the electrical system before the project begins\u003c\/h3\u003e\n\u003cp\u003eA 36,000 BTU mini-split requires a significantly larger electrical circuit than a lower-capacity wall-mounted unit.\u003c\/p\u003e\n\u003cp\u003eFor the LETO:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMCA: 33 A\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMaximum protection: 35 A\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe documentation and the AirGreen listing agree on these values. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore check the available power supply before installation.\u003c\/p\u003e\n\u003cp\u003eA common mistake is to order a heat pump assuming that the circuit from an older, smaller unit can be reused directly. If the old unit was 12,000 or 18,000 BTU, the existing circuit may not meet the new system’s electrical requirements.\u003c\/p\u003e\n\u003cp\u003eThis preliminary check prevents us from arriving on-site with a heat pump ready to be installed when the electrical circuit needs to be modified.\u003c\/p\u003e\n\u003ch3\u003e882.9 CFM in Turbo: why airflow matters on a unit this large\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer’s table provides four indoor airflow rates:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e882.9 CFM in Turbo\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e732.8 CFM at high speed\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e518.0 CFM at medium speed\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e400.2 CFM at low speed\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe associated sound pressure levels are:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e56.5 dB(A) in Turbo\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e50.5 dB(A) at high speed\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e44.5 dB(A) at medium speed\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e34 dB(A) at low speed\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen listing currently displays a CFM field as “1883,” which does not match the indoor airflow detailed in the brochure. For a technical comparison, we therefore use the four airflow rates published in the official table.\u003c\/p\u003e\n\u003cp\u003eAn airflow of nearly \u003cstrong\u003e883 CFM\u003c\/strong\u003e also explains why positioning the indoor unit is so important. At high speed, the air movement is considerable.\u003c\/p\u003e\n\u003cp\u003eInstalling such a unit too close to a living area or directly facing an occupied zone can create a draft-like sensation. The goal is to use the airflow to distribute the temperature throughout the room, not to direct the flow constantly toward occupants.\u003c\/p\u003e\n\u003ch3\u003e34 dB(A) minimum, but 56.5 dB(A) in Turbo\u003c\/h3\u003e\n\u003cp\u003eSenville describes the system as capable of operating at up to \u003cstrong\u003e34 dB(A)\u003c\/strong\u003e on the quietest indoor setting. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis figure is useful, but it should be presented alongside the full sound range.\u003c\/p\u003e\n\u003cp\u003eAt full fan speed, the unit reaches \u003cstrong\u003e56.5 dB(A)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a 36,000 BTU heat pump intended for a large open area, this behavior is consistent with the required airflow. A room that requires substantial capacity needs a great deal of air to be moved.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit is rated at \u003cstrong\u003e61.4 dB(A)\u003c\/strong\u003e with a maximum outdoor airflow of \u003cstrong\u003e2,235.3 CFM\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a dense environment in Montreal or a narrow yard in Longueuil, we therefore take into account the condenser’s location, reflective surfaces, nearby windows, and potential vibrations.\u003c\/p\u003e\n\u003ch3\u003eA dehumidification capacity of 4.9 L\/h\u003c\/h3\u003e\n\u003cp\u003eThe documentation indicates moisture removal of up to \u003cstrong\u003e4.9 liters per hour\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor large open areas, this feature can make a significant contribution to comfort during hot and humid periods.\u003c\/p\u003e\n\u003cp\u003eThe temperature shown on the thermostat does not tell the whole story. A space at 23 °C with high indoor humidity can remain uncomfortable.\u003c\/p\u003e\n\u003cp\u003eThe compressor’s modulation capability is useful here: when properly sized, the system can maintain more stable operation and help control humidity rather than operating only in very short cycles.\u003c\/p\u003e\n\u003ch2\u003eHeating in Quebec: what the LETO 36,000 BTU can actually deliver\u003c\/h2\u003e\n\u003ch3\u003eHeating advertised down to -15 °C\u003c\/h3\u003e\n\u003cp\u003eSenville’s official documentation clearly presents this model as a unit offering \u003cstrong\u003eheating down to -15 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis information should be emphasized because the LETO 36,000 BTU is not presented as an \u003cstrong\u003eENERGY STAR Cold Climate\u003c\/strong\u003e heat pump.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specifications confirm:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR: No\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eENERGY STAR Cold Climate: No\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis does not mean that the unit cannot heat efficiently during a large portion of the winter. Rather, it means that it should not be compared directly with a model specifically designed to maintain high capacity during extreme temperatures.\u003c\/p\u003e\n\u003ch3\u003eAirGreen’s published low-temperature capacities\u003c\/h3\u003e\n\u003cp\u003eOur product page provides several particularly useful performance points:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e24,600 BTU\/h at -8 °C\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e21,400 BTU\/h at -15 °C\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e11,200 BTU\/h at -25 °C\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese figures clearly show the decrease in capacity as the outdoor temperature drops.\u003c\/p\u003e\n\u003cp\u003eAt -15 °C, for example, the available \u003cstrong\u003e21,400 BTU\/h\u003c\/strong\u003e represents approximately 59% of the 36,000 BTU rated capacity.\u003c\/p\u003e\n\u003cp\u003eAt -25 °C, the indicated \u003cstrong\u003e11,200 BTU\/h\u003c\/strong\u003e represents approximately 31% of the rated capacity.\u003c\/p\u003e\n\u003cp\u003eThis is probably the most important information to understand before using this system as the primary heating source.\u003c\/p\u003e\n\u003cp\u003eA homeowner may see “36,000 BTU” and assume that this capacity is available regardless of the outdoor temperature. In practice, a heat pump’s capacity changes with conditions.\u003c\/p\u003e\n\u003ch3\u003eWhy a supplementary heating system may still be necessary\u003c\/h3\u003e\n\u003cp\u003eIn a large commercial room or residential space that genuinely requires 30,000 to 36,000 BTUs on the coldest days, a capacity of \u003cstrong\u003e21,400 BTU at -15 °C\u003c\/strong\u003e may not be sufficient on its own.\u003c\/p\u003e\n\u003cp\u003eThe existing electric heating can then supplement the heat pump.\u003c\/p\u003e\n\u003cp\u003eThis combination can make perfect sense if the LETO meets a large portion of the heating needs during the fall, spring, and milder winter periods, while a supplementary source comes into play during the coldest temperatures.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we prefer to explain this reality before installation rather than promise that a 36,000 BTU unit will automatically replace all existing heating systems.\u003c\/p\u003e\n\u003ch3\u003eIs the 36,000 BTU LETO suitable for Montreal, Laval, and the South Shore?\u003c\/h3\u003e\n\u003cp\u003eYes, for the right project.\u003c\/p\u003e\n\u003cp\u003eWe would consider it especially for a \u003cstrong\u003elarge open area\u003c\/strong\u003e, a business, a workshop, a substantial basement, or an area where 36,000 BTU cooling capacity is the priority.\u003c\/p\u003e\n\u003cp\u003eWe would be more cautious if the owner is primarily looking for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eprimary heating at very low temperatures;\u003c\/li\u003e\n\u003cli\u003ean ENERGY STAR Cold Climate certification;\u003c\/li\u003e\n\u003cli\u003eeligibility for a subsidy linked to this certification;\u003c\/li\u003e\n\u003cli\u003ehigh capacity maintained during extreme cold spells.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe AirGreen product sheet currently shows \u003cstrong\u003eno LogisVert subsidy amount\u003c\/strong\u003e for this combination and indicates that the unit is not ENERGY STAR certified. We therefore recommend \u003cstrong\u003enot including a subsidy in the net-price calculation until eligibility applicable at the time of purchase has been confirmed\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWiFi, Alexa, and remote control\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates that \u003cstrong\u003eWiFi is included\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe Senville documentation also confirms \u003cstrong\u003eAlexa\u003c\/strong\u003e compatibility and the ability to use an app to change settings and schedule temperatures remotely. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a large commercial space or workshop, this feature can be particularly convenient.\u003c\/p\u003e\n\u003cp\u003eThe manager can adjust the temperature before occupants arrive, change schedules, or check settings without having to be physically in front of the remote control.\u003c\/p\u003e\n\u003ch3\u003eAutomatic vertical and horizontal louvers\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet confirms \u003cstrong\u003eautomatic vertical and horizontal louver control\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOn a unit with such a high airflow rate, this is not merely a comfort feature.\u003c\/p\u003e\n\u003cp\u003eAirflow direction directly affects how the 36,000 BTUs are distributed throughout the room. We therefore use louver movement in addition to proper indoor-unit placement.\u003c\/p\u003e\n\u003cp\u003eHowever, even the best air-sweeping system cannot effectively get around several partitions. That is why the building layout remains central when choosing a single-zone mini-split.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a difference to verify before purchase\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet shows:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10-year compressor – 10-year parts – 0-year labor\u003c\/strong\u003e, with additional warranty coverage possibly available.\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure provided states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5-year compressor – 5-year parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe same documentation specifies that installation by an authorized technician is required and that professional installation is necessary to maintain coverage and ensure compliant operation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference between the manufacturer's basic warranty and the warranty advertised by AirGreen must be confirmed according to the applicable program, product registration, and sales terms at the time of ordering.\u003c\/p\u003e\n\u003cp\u003eWe always recommend that the customer keep:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe invoice;\u003c\/li\u003e\n\u003cli\u003eserial numbers;\u003c\/li\u003e\n\u003cli\u003eproof of installation;\u003c\/li\u003e\n\u003cli\u003ewarranty registration information;\u003c\/li\u003e\n\u003cli\u003ethe documents associated with any additional warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat we verify before installing a 36,000 BTU LETO\u003c\/h3\u003e\n\u003cp\u003eWith a heat pump of this capacity, our preparation focuses on several elements that can completely change the final result.\u003c\/p\u003e\n\u003cp\u003eWe first validate the \u003cstrong\u003ethermal load and space configuration\u003c\/strong\u003e. Next come the evaporator location, airflow path, and the possibility of running the \u003cstrong\u003e3\/8 in – 5\/8 in\u003c\/strong\u003e lines to the condenser.\u003c\/p\u003e\n\u003cp\u003eWe also confirm the electrical circuit corresponding to the \u003cstrong\u003e33 A MCA and 35 A MOP\u003c\/strong\u003e, then determine an outdoor location sturdy enough for a unit weighing nearly \u003cstrong\u003e143 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn winter, we also plan the space around the condenser so that snow, ice, and water from defrosting do not interfere with its operation.\u003c\/p\u003e\n\u003cp\u003eThese are less visible elements than a SEER2 rating or a Wi-Fi function, but they are often what determines whether an installation will remain practical for many years.\u003c\/p\u003e\n\u003ch3\u003eThe SENVILLE LETO 36,000 BTU in brief\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE LETO SENL-36CD-OL \/ SENL-36CD-ILL\u003c\/strong\u003e is clearly intended for projects where high cooling capacity and strong airflow are required in a single zone.\u003c\/p\u003e\n\u003cp\u003eIts main technical specifications are solid and easy to identify: \u003cstrong\u003e36,000 BTU\u003c\/strong\u003e, \u003cstrong\u003e18 SEER2\u003c\/strong\u003e, \u003cstrong\u003eDC Inverter\u003c\/strong\u003e technology, \u003cstrong\u003eR-454B\u003c\/strong\u003e, Wi-Fi, Alexa compatibility, substantial modulation, \u003cstrong\u003e3\/8 in – 5\/8 in\u003c\/strong\u003e piping, and a 208\/230 V power supply.\u003c\/p\u003e\n\u003cp\u003eIts main limitation for the Quebec market is also clear: it is not an \u003cstrong\u003eENERGY STAR Cold Climate\u003c\/strong\u003e model, and its heating capacity decreases considerably at very low temperatures.\u003c\/p\u003e\n\u003cp\u003eFor some projects, this compromise is perfectly reasonable. For others, particularly when winter heating is the absolute priority, we may recommend a heat pump with higher low-temperature capacity.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, our job is precisely to make this distinction before the equipment is installed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor a SENVILLE LETO 36,000 BTU installation in Montreal, Laval, Longueuil, on the South Shore, the North Shore, or elsewhere in Greater Montreal, contact AirGreen. We can verify the sizing, electrical supply, unit locations, and building configuration to prepare a quote tailored to the project.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119910400292,"sku":"SENL-36CD-OL","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_LETO_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_f2db75ca-9675-4843-b719-d4025b9e9aae.png?v=1789049878"},{"product_id":"thermopompe-murale-senville-elite-9000-btu-montreal-laval-rive-sud","title":"SENVILLE ELITE Wall-Mounted Heat Pump | 9000 BTU | Montréal, Laval, South Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 9,000 BTU heat pump designed for small areas where winter performance truly matters\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eIn a bedroom, enclosed office, studio, or small living area, installing more BTUs does not automatically improve comfort. A properly sized \u003cstrong\u003e9,000 BTU wall-mounted heat pump\u003c\/strong\u003e can instead maintain a more stable temperature, run for longer periods at low output, and reduce temperature fluctuations.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE ELITE 9,000 BTU\u003c\/strong\u003e, combination \u003cstrong\u003eSENE-09EL-OH \/ SENE-09EL-IHH\u003c\/strong\u003e, is particularly interesting because it combines a small nominal capacity with a very wide modulation range, a \u003cstrong\u003eSEER2 of 33.3\u003c\/strong\u003e, \u003cstrong\u003eENERGY STAR®\u003c\/strong\u003e certification, heating operation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, \u003cstrong\u003eR-454B\u003c\/strong\u003e refrigerant, WiFi, and an advertised 10-year warranty on the compressor and parts.\u003c\/p\u003e\n\u003cp\u003eSenville documentation clearly identifies the \u003cstrong\u003eSENE-09EL\u003c\/strong\u003e as belonging to the \u003cstrong\u003eELITE\u003c\/strong\u003e series, with a nominal cooling capacity of 9,000 BTU. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, this format stands out to us for projects in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e where the homeowner is looking for a compact unit without sacrificing performance when outdoor temperatures drop.\u003c\/p\u003e\n\u003ch3\u003eKey technical data for the SENVILLE ELITE 9,000 BTU\u003c\/h3\u003e\n\u003cp\u003eThe combination listed on the AirGreen data sheet is as follows:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENE-09EL-OH\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: SENE-09EL-IHH\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 217607367\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNominal cooling capacity: 9,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR®: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR® Cold Climate: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWiFi: included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePiping: 1\/4 in – 3\/8 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 220 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 3 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum protection: 20 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor sound level: 23 to 41.5 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound level: 57 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating down to -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Senville technical data sheet specifies a \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e power supply, with an allowable range of 187 to 253 V. It indicates a \u003cstrong\u003eSEER2 of 33.3\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 17.0\u003c\/strong\u003e, a nominal cooling capacity of 9,000 BTU, and a nominal heating capacity of 12,000 BTU. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eSEER2 33.3: exceptionally high seasonal efficiency\u003c\/h3\u003e\n\u003cp\u003eThe figure that immediately draws attention is the \u003cstrong\u003eSEER2 of 33.3\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner comparing several \u003cstrong\u003e9,000 BTU wall-mounted heat pumps in Montréal or Laval\u003c\/strong\u003e, SEER2 indicates seasonal cooling efficiency. The higher it is, the more efficiently the unit can produce cooling under the test conditions specified by the standard.\u003c\/p\u003e\n\u003cp\u003eSenville specifically highlights this \u003cstrong\u003eSEER2 of 33.3\u003c\/strong\u003e in its documentation and presents the model as ENERGY STAR certified. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn heating mode, the technical specifications are also noteworthy:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-4: 22.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-5: 16.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated COP: 3.60\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese data appear in the official technical table for the SENE-09EL. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHSPF2\u003c\/strong\u003e is used to compare seasonal heating efficiency, while COP represents the ratio between the thermal energy produced and the electrical energy consumed under a given condition.\u003c\/p\u003e\n\u003cp\u003eFor Quebec’s climate, we place considerable importance on these values, but they must always be considered in relation to the capacity actually available when the temperature drops.\u003c\/p\u003e\n\u003ch3\u003e9,000 BTU in cooling mode, but up to 16,500 BTU depending on demand\u003c\/h3\u003e\n\u003cp\u003eThe “9,000 BTU” figure is the rated cooling capacity. It does not describe the unit’s entire operating range.\u003c\/p\u003e\n\u003cp\u003eAccording to Senville, the cooling modulation range extends from:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3,100 to 16,500 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn heating mode, the rated capacity is \u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e, with a range of:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4,100 to 17,200 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis range is important.\u003c\/p\u003e\n\u003cp\u003eIn a small room, when the indoor temperature approaches the setpoint, the inverter compressor can reduce its output instead of constantly running at full capacity. When demand increases, it has considerable capacity available above its rated capacity.\u003c\/p\u003e\n\u003cp\u003eFor the user, this may promote:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea more stable temperature;\u003c\/li\u003e\n\u003cli\u003elonger, more consistent cycles;\u003c\/li\u003e\n\u003cli\u003efewer sudden fluctuations;\u003c\/li\u003e\n\u003cli\u003equieter operation at low output;\u003c\/li\u003e\n\u003cli\u003ebetter adaptation to changes in thermal load.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThat is also why we do not automatically recommend a 12,000 BTU heat pump when a high-performance 9,000 BTU unit can properly handle a space.\u003c\/p\u003e\n\u003ch3\u003e100 to 450 sq. ft. according to Senville: an indication, not a load calculation\u003c\/h3\u003e\n\u003cp\u003eThe brochure recommends the model for spaces of approximately \u003cstrong\u003e100 to 450 sq. ft.\u003c\/strong\u003e, including small rooms and studios. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, this range should not be applied mechanically.\u003c\/p\u003e\n\u003cp\u003eA 350 sq. ft. room in a recent construction in \u003cstrong\u003eBoucherville\u003c\/strong\u003e may require less heating than a 250 sq. ft. space in an older building in \u003cstrong\u003eMontréal\u003c\/strong\u003e, depending on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewall insulation;\u003c\/li\u003e\n\u003cli\u003ewindows;\u003c\/li\u003e\n\u003cli\u003eairtightness;\u003c\/li\u003e\n\u003cli\u003efloor;\u003c\/li\u003e\n\u003cli\u003eorientation;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003ethe presence of exterior walls;\u003c\/li\u003e\n\u003cli\u003esun exposure;\u003c\/li\u003e\n\u003cli\u003ethe room’s usage habits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAt AirGreen, the number of square feet is therefore a starting point. \u003cstrong\u003eSizing a wall-mounted heat pump\u003c\/strong\u003e must take the actual heat load into account.\u003c\/p\u003e\n\u003ch3\u003eA noteworthy figure at -15 °C\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications sheet indicates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e11,000 BTU\/h at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e13,500 BTU\/h at -15 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e7,500 BTU\/h maximum at -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe capacity listed at \u003cstrong\u003e-15 °C\u003c\/strong\u003e is particularly interesting, reaching \u003cstrong\u003e13,500 BTU\/h\u003c\/strong\u003e, which is higher than the 9,000 BTUs associated with the nominal cooling capacity.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer’s brochure confirms that the system can operate in heating mode down to \u003cstrong\u003e-30 °C \/ -22 °F\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis helps clarify an important nuance.\u003c\/p\u003e\n\u003cp\u003eA wall-mounted heat pump may carry a “9,000 BTU” label while offering significantly different heating capacity depending on outdoor conditions and how the manufacturer defines its rated capacity.\u003c\/p\u003e\n\u003ch3\u003eAt -30 °C, the heat pump continues to heat, but at a reduced capacity\u003c\/h3\u003e\n\u003cp\u003eOn the AirGreen specifications sheet, the maximum capacity listed at \u003cstrong\u003e-30 °C is 7,500 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt would therefore be inaccurate to interpret “heating down to -30 °C” as “12,000 or 13,500 BTUs available down to -30 °C.”\u003c\/p\u003e\n\u003cp\u003eWhen the outdoor temperature becomes extremely low, a heat pump’s capacity decreases. This point is particularly important for homes in \u003cstrong\u003eGreater Montreal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIf the room loses more heat than the heat pump can provide at that temperature, a supplementary heating source may become necessary.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we prefer to explain this reality before installation rather than summarize winter performance solely by the minimum operating temperature.\u003c\/p\u003e\n\u003ch3\u003eOnly 23 dB(A) at low speed\u003c\/h3\u003e\n\u003cp\u003eA heat pump intended for a bedroom or office should be acoustically comfortable.\u003c\/p\u003e\n\u003cp\u003eThe documentation indicates the following levels:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTurbo: 41.5 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHigh speed: 41.5 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMedium speed: 33 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLow speed: 23 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe corresponding airflow ranges from \u003cstrong\u003e153 CFM at low speed to 559.2 CFM in Turbo mode\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis range is interesting because it allows a small heat pump to adjust not only its cooling capacity, but also the amount of air sent into the room.\u003c\/p\u003e\n\u003cp\u003eAt low speed, \u003cstrong\u003e23 dB(A)\u003c\/strong\u003e is particularly suitable for applications where noise is a priority.\u003c\/p\u003e\n\u003cp\u003eAt full speed, the unit moves more than 559 CFM. However, this makes its location important: even a quiet unit can become uncomfortable when it blows directly onto the bed, desk, or sofa.\u003c\/p\u003e\n\u003ch3\u003eAutomatic vertical and horizontal louvers: an advantage for air distribution\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates that the vertical and horizontal louvers are controlled automatically.\u003c\/p\u003e\n\u003cp\u003eThis function helps distribute the air, but it does not replace proper indoor unit placement.\u003c\/p\u003e\n\u003cp\u003eDuring an \u003cstrong\u003eHVAC installation\u003c\/strong\u003e, we ideally seek to position the wall-mounted head so as to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003edirect the air along the length of the room;\u003c\/li\u003e\n\u003cli\u003eavoid immediate obstacles;\u003c\/li\u003e\n\u003cli\u003ereduce direct drafts on occupants;\u003c\/li\u003e\n\u003cli\u003efacilitate movement toward the farthest part of the space;\u003c\/li\u003e\n\u003cli\u003ekeep the unit accessible for maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTherefore, the best location is not necessarily the one with the shortest piping.\u003c\/p\u003e\n\u003ch3\u003eA relatively wide indoor unit for a 9,000 BTU model\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE ELITE also stands out for its size.\u003c\/p\u003e\n\u003cp\u003eThe indoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e40.04 in × 9.53 in × 12.56 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e28.22 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e35.04 in × 13.46 in × 26.50 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eweighing approximately \u003cstrong\u003e99.65 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSo this is not a small 9,000 BTU head in physical terms.\u003c\/p\u003e\n\u003cp\u003eBefore installation, it is necessary to verify that there is sufficient space above windows, doors, or furniture. The clearances specified by the manufacturer must also be respected.\u003c\/p\u003e\n\u003cp\u003eOutdoors, a unit weighing nearly 100 lb requires suitable fastening or support.\u003c\/p\u003e\n\u003ch2\u003eInstallation, R-454B, connectivity, and maintenance: what we look at before recommending the SENVILLE ELITE\u003c\/h2\u003e\n\u003ch3\u003eR-454B and a factory charge intended for 25 feet\u003c\/h3\u003e\n\u003cp\u003eThe SENE-09EL uses \u003cstrong\u003eR-454B refrigerant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe documentation indicates a charge of \u003cstrong\u003e44.09 oz\u003c\/strong\u003e and a factory charge intended for piping up to \u003cstrong\u003e25 feet\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville also specifies that with a 50-foot line set, additional refrigerant must be added on site by the installer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis information is particularly important when a homeowner wants to move the outdoor unit farther away for aesthetic or acoustic reasons.\u003c\/p\u003e\n\u003cp\u003eThe actual refrigerant line length must be calculated before work begins.\u003c\/p\u003e\n\u003ch3\u003e1\/4 in – 3\/8 in piping: essential to verify when replacing the unit\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates 1\/4 in – 3\/8 in piping.\u003c\/p\u003e\n\u003cp\u003eIn a replacement project, keeping the old piping may seem appealing to avoid opening walls or redoing line-hide covers.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, however, we must first check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe existing diameter;\u003c\/li\u003e\n\u003cli\u003ethe condition of the copper;\u003c\/li\u003e\n\u003cli\u003ethe length;\u003c\/li\u003e\n\u003cli\u003ethe refrigerant type of the previous system;\u003c\/li\u003e\n\u003cli\u003ethe route;\u003c\/li\u003e\n\u003cli\u003ethe cleaning or replacement requirements;\u003c\/li\u003e\n\u003cli\u003ethe specifications applicable to the new system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA high-performance heat pump also depends on the quality of its refrigeration circuit.\u003c\/p\u003e\n\u003ch3\u003eMCA of only 3 A, but maximum protection of 20 A\u003c\/h3\u003e\n\u003cp\u003eThe documentation indicates a \u003cstrong\u003eminimum circuit ampacity of 3.0 A\u003c\/strong\u003e and a \u003cstrong\u003emaximum fuse of 20 A\u003c\/strong\u003e. The specified connection wiring is \u003cstrong\u003e14\/4 AWG\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe required voltage is \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese data must be interpreted correctly during electrical work.\u003c\/p\u003e\n\u003cp\u003eThe MCA does not mean that it is sufficient to connect the unit to just any circuit. The protection, wiring, disconnect switch, and installation method must comply with the specifications of the equipment actually delivered and the applicable requirements.\u003c\/p\u003e\n\u003ch3\u003eWiFi and Alexa for remote temperature control\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE ELITE is compatible with \u003cstrong\u003eAlexa\u003c\/strong\u003e and app control.\u003c\/p\u003e\n\u003cp\u003eThe documentation indicates that it is possible to change the setpoint, schedule operating times, and manage the system remotely. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe manufacturer includes, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe indoor unit;\u003c\/li\u003e\n\u003cli\u003ethe outdoor unit;\u003c\/li\u003e\n\u003cli\u003ea wireless remote control;\u003c\/li\u003e\n\u003cli\u003ethe \u003cstrong\u003eAlexa USB kit\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ethe indoor-outdoor connection harness;\u003c\/li\u003e\n\u003cli\u003ethe manuals;\u003c\/li\u003e\n\u003cli\u003ethe installation package according to the selected option. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a secondary residence, office, or room used only at certain times, this connectivity can be used to lower the setpoint while away and then bring the space back to temperature before arrival.\u003c\/p\u003e\n\u003ch3\u003eDehumidification: 0.5 L\/h\u003c\/h3\u003e\n\u003cp\u003eThe specification sheet indicates a moisture removal capacity of \u003cstrong\u003e0.5 liters per hour\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis capacity is relevant during Montreal’s hot and humid summer periods.\u003c\/p\u003e\n\u003cp\u003eHowever, the condensate drain must be installed properly for it to work correctly.\u003c\/p\u003e\n\u003cp\u003eAn improper slope, a pinched drain, or a poorly planned route can eventually cause an overflow even if the refrigeration system is working perfectly.\u003c\/p\u003e\n\u003cp\u003eDrainage is therefore one of the elements we consider from the planning stage of a \u003cstrong\u003ewall-mounted heat pump installation\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eIntegrated self-diagnostics and leak detection\u003c\/h3\u003e\n\u003cp\u003eSenville documentation mentions a \u003cstrong\u003eself-diagnostic and leak-detection system\u003c\/strong\u003e designed to facilitate the detection of certain problems. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese functions do not replace \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe filters must remain clean, the evaporator must not accumulate excessive dust, the drain must be able to discharge condensate freely, and the outdoor unit must maintain sufficient clearance.\u003c\/p\u003e\n\u003cp\u003eOver time, a poorly maintained unit may lose airflow even if its compressor and electronic controls are functioning normally.\u003c\/p\u003e\n\u003ch3\u003eA user review emphasizing two points: quiet operation and professional installation\u003c\/h3\u003e\n\u003cp\u003eThe accompanying documentation presents the review of a verified Canadian buyer. They describe the heat pump as very quiet and emphasize that an HVAC installer is still required to commission it properly. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis type of comment reflects an important aspect of a ductless heat pump: equipment quality alone is not enough.\u003c\/p\u003e\n\u003cp\u003eThe vacuuming, refrigerant connections, leak testing, drainage, and commissioning must be carried out properly to achieve the expected performance.\u003c\/p\u003e\n\u003ch3\u003e10-year compressor and 10-year parts warranty\u003c\/h3\u003e\n\u003cp\u003eUnlike some other product lines where warranty conditions may differ between the retailer's product sheet and the manufacturer's documentation, the information provided here is consistent.\u003c\/p\u003e\n\u003cp\u003eSenville announces:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years on the compressor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical table also includes the wording \u003cstrong\u003e10 Years Compressor \/ 10 Years Parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product sheet, for its part, indicates coverage \u003cstrong\u003e10-10-0\u003c\/strong\u003e, meaning 10 years for the compressor, 10 years for parts, and no labor included in this basic warranty, with the possibility of an additional warranty.\u003c\/p\u003e\n\u003cp\u003eAs always, the registration conditions and applicable terms must be confirmed with the quote.\u003c\/p\u003e\n\u003ch3\u003eA scenario in which the 9,000-BTU ELITE makes particularly good sense\u003c\/h3\u003e\n\u003cp\u003eConsider a modestly sized space that serves as both an office and a resting room. It has good windows, adequate insulation, and a strong need for quiet.\u003c\/p\u003e\n\u003cp\u003eA 12,000- or 18,000-BTU heat pump could work, but more capacity does not necessarily mean greater comfort.\u003c\/p\u003e\n\u003cp\u003eWith a modulation range that can go as low as \u003cstrong\u003e3,100 BTU\/h in cooling\u003c\/strong\u003e and \u003cstrong\u003e4,100 BTU\/h in heating\u003c\/strong\u003e, the SENVILLE ELITE can significantly reduce its output when demand becomes low. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn this type of project, the features that interest us are therefore less about maximum capacity than:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emodulation;\u003c\/li\u003e\n\u003cli\u003ethe 23 dB(A) sound level;\u003c\/li\u003e\n\u003cli\u003eseasonal efficiency;\u003c\/li\u003e\n\u003cli\u003elow-temperature performance;\u003c\/li\u003e\n\u003cli\u003ethe ability to control the unit remotely.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eConversely, if the goal is to condition several rooms separated by doors and a hallway simultaneously, a single 9,000 BTU wall-mounted head may not provide the desired distribution, even if the total area appears compatible.\u003c\/p\u003e\n\u003ch3\u003eThree mistakes to avoid with a heat pump in this category\u003c\/h3\u003e\n\u003ch4\u003eChoosing based solely on square footage\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003e100 to 450 sq. ft.\u003c\/strong\u003e range is useful, but it does not replace a thermal load assessment.\u003c\/p\u003e\n\u003ch4\u003eChoosing 12,000 or 18,000 BTU simply “to be safe”\u003c\/h4\u003e\n\u003cp\u003eAn oversized unit can reduce modulation quality and reach its setpoint too quickly. In a small room, this is not necessarily an advantage.\u003c\/p\u003e\n\u003ch4\u003eChoosing the location solely to shorten the piping\u003c\/h4\u003e\n\u003cp\u003eA poorly oriented indoor head can create a direct draft or distribute temperature unevenly, even with an excellent heat pump.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for SENVILLE ELITE installation\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, our role goes beyond simply mounting the unit on the wall.\u003c\/p\u003e\n\u003cp\u003eFor a \u003cstrong\u003eSENVILLE ELITE 9,000 BTU heat pump\u003c\/strong\u003e, we assess in particular:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe capacity actually required;\u003c\/li\u003e\n\u003cli\u003ethe optimal location for the indoor head;\u003c\/li\u003e\n\u003cli\u003eair circulation in the room;\u003c\/li\u003e\n\u003cli\u003ethe \u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e piping route;\u003c\/li\u003e\n\u003cli\u003econdensate drainage;\u003c\/li\u003e\n\u003cli\u003ethe location and support for the outdoor unit;\u003c\/li\u003e\n\u003cli\u003ethe 208\/230 V power supply;\u003c\/li\u003e\n\u003cli\u003ethe clearances required for maintenance;\u003c\/li\u003e\n\u003cli\u003ethe line length and refrigerant requirements;\u003c\/li\u003e\n\u003cli\u003ethe building-specific constraints.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis approach is particularly useful in \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e, where an installation in a Montreal duplex can present very different constraints from those of a detached home in \u003cstrong\u003eLaval, Longueuil, Boucherville, Terrebonne, or on the North Shore\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE ELITE 9,000 BTU\u003c\/strong\u003e is particularly appealing when you want to heat and cool a relatively small area efficiently with a unit that maintains notable low-temperature capacity, can operate down to -30 °C, and offers high efficiency ratings.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen for a quote, to determine whether the SENVILLE ELITE SENE-09EL 9,000 BTU is suitable for your space, and to schedule a professional HVAC installation in Montreal, Laval, Longueuil, on the South Shore, or on the North Shore.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119949361444,"sku":"SENE-09EL-OH","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_ELITE_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789051005"},{"product_id":"thermopompe-murale-senville-elite-12000-btu-montreal-laval-rive-sud","title":"SENVILLE ELITE Wall-Mounted Heat Pump | 12000 BTU | Montréal, Laval, South Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 12,000 BTU heat pump designed for the Quebec climate, with particularly high seasonal efficiency\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE ELITE 12,000 BTU\u003c\/strong\u003e is intended for a very specific type of project: a homeowner who does not want to simply cool a room in the summer, but also wants to use the heat pump during a significant part of the Quebec winter. With its \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certification, cold-climate qualification, advertised operation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, \u003cstrong\u003eR-454B\u003c\/strong\u003e refrigerant, and \u003cstrong\u003eSEER2 rating of 29.4\u003c\/strong\u003e, it is clearly above an entry-level mini-split intended primarily for air conditioning.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, when we evaluate a \u003cstrong\u003ewall-mounted heat pump installation in Montreal, Laval, Longueuil, or on the South Shore\u003c\/strong\u003e, we first consider the actual purpose the homeowner wants the unit to serve. A heat pump used primarily to cool a living room does not need the same features as one that is also expected to provide heating in January.\u003c\/p\u003e\n\u003cp\u003eThe SENVILLE ELITE SENE-12EL belongs precisely to this second category. In its documentation, Senville presents this model as a new-generation \u003cstrong\u003e12,000 BTU\u003c\/strong\u003e wall-mounted heat pump designed for quiet operation, high efficiency, and advanced cold-climate heating. The brochure also confirms its ENERGY STAR certification, its SEER2 rating of 29.4, and its ability to operate in heating mode down to -30 °C. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe same documentation recommends this capacity for spaces of approximately \u003cstrong\u003e500 to 750 sq. ft.\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e This floor area is useful as a guideline, but it should never replace sizing based on the actual building.\u003c\/p\u003e\n\u003ch3\u003eSENE-12EL-OH and SENE-12EL-IHH: the combination presented by AirGreen\u003c\/h3\u003e\n\u003cp\u003eThe configuration shown on the AirGreen product page includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENE-12EL-OH\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: SENE-12EL-IHH\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 217607368\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR ID: 4480154\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNominal capacity: 12,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi: included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR Cold Climate: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAdvertised minimum heating temperature: -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe official brochure identifies the family as \u003cstrong\u003eSENE-12EL\u003c\/strong\u003e and describes it as a ductless wall-mounted heat pump system powered by \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor an HVAC installation, this precise identification is important. The nominal capacity listed in the commercial name is not sufficient to confirm a rebate, parts compatibility, a warranty, or winter performance data. The combination number and AHRI number must match the equipment actually installed.\u003c\/p\u003e\n\u003ch3\u003e12,000 BTU nominal, but a much wider modulation range\u003c\/h3\u003e\n\u003cp\u003eAn inverter heat pump does not operate constantly at 12,000 BTU.\u003c\/p\u003e\n\u003cp\u003ePage 4 of the brochure provides particularly useful data: the SENE-12EL can modulate in cooling mode from approximately \u003cstrong\u003e3,100 to 16,500 BTU\/h\u003c\/strong\u003e. In heating mode, its listed range is approximately \u003cstrong\u003e4,100 to 17,200 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis means the machine can significantly reduce its output when the thermal demand becomes low, then increase its capacity when the load rises.\u003c\/p\u003e\n\u003cp\u003eThis feature matters greatly in a condo, primary bedroom, office, or medium-sized living area. A heat pump that can modulate low enough can maintain a stable temperature with fewer on-off cycles, which generally promotes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emore uniform comfort;\u003c\/li\u003e\n\u003cli\u003equieter operation;\u003c\/li\u003e\n\u003cli\u003egreater temperature stability;\u003c\/li\u003e\n\u003cli\u003emore efficient use of the inverter compressor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is also why we avoid automatically choosing a larger model “for safety.” An 18,000 BTU unit installed in an area that actually requires 9,000 or 12,000 BTU may be less suitable than a properly sized unit.\u003c\/p\u003e\n\u003ch3\u003eSEER2 of 29.4: one of the main technical selling points of this SENVILLE ELITE\u003c\/h3\u003e\n\u003cp\u003eThe brochure's technical table indicates:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eFeature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSENVILLE ELITE SENE-12EL\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal cooling capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3,100 to 16,500 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal heating capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e4,100 to 17,200 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSEER2\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e29,4\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEER2\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e14,2\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2-4\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e14,5\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal COP\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3,60\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum outdoor temperature in heating mode\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e-30 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eR-454B\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThese data appear on pages 4 and 5 of the official documentation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003eSEER2 of 29.4\u003c\/strong\u003e represents very high seasonal cooling efficiency for a 12,000 BTU wall-mounted heat pump.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer also advertises savings of up to 58% per year in certain comparisons. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e However, we prefer to treat this type of percentage as a commercial estimate rather than a promise regarding the electricity bill.\u003c\/p\u003e\n\u003cp\u003eActual consumption depends in particular on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eof the insulation;\u003c\/li\u003e\n\u003cli\u003eof the windows;\u003c\/li\u003e\n\u003cli\u003eof solar exposure;\u003c\/li\u003e\n\u003cli\u003eof the requested temperature;\u003c\/li\u003e\n\u003cli\u003eof the replaced appliance;\u003c\/li\u003e\n\u003cli\u003eof the daily operating time;\u003c\/li\u003e\n\u003cli\u003eof the outdoor temperature;\u003c\/li\u003e\n\u003cli\u003eof the dwelling's configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \u003cstrong\u003eSEER2, EER2, and HSPF2\u003c\/strong\u003e ratings are therefore more useful for comparing two systems on a technical basis.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -30 °C: the minimum temperature tells only part of the story\u003c\/h3\u003e\n\u003cp\u003eThe brochure confirms a minimum outdoor heating temperature of \u003cstrong\u003e-30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specifications also provide capacities at different temperatures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eapproximately \u003cstrong\u003e11,000 BTU\/h at -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eapproximately \u003cstrong\u003e13,500 BTU\/h at -15 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eup to \u003cstrong\u003e7,500 BTU\/h at -30 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis data provides a much more useful picture than simply stating “-30 °C.”\u003c\/p\u003e\n\u003cp\u003eAs the outdoor temperature drops, the building loses more heat. At the same time, the heat pump’s available capacity may decrease. At -30 °C, this SENVILLE therefore continues to operate according to the data provided, but it does not necessarily deliver the same amount of heating as it does at a milder temperature.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner in \u003cstrong\u003eMontreal, Laval, or Longueuil\u003c\/strong\u003e, the available capacity of the unit must therefore be compared with the room’s actual heat loss.\u003c\/p\u003e\n\u003cp\u003eThis is exactly the type of assessment we carry out at AirGreen before presenting a heat pump as a significant heating solution.\u003c\/p\u003e\n\u003ch3\u003eA typical application: 600 open sq. ft. does not perform like 600 divided sq. ft.\u003c\/h3\u003e\n\u003cp\u003eThe documentation recommends the model for approximately \u003cstrong\u003e500 to 750 sq. ft.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eLet’s consider two realistic cases.\u003c\/p\u003e\n\u003cp\u003eIn a 600 sq. ft. condo with a largely open living room and kitchen area, a properly positioned wall-mounted heat pump can distribute its air effectively across much of the space.\u003c\/p\u003e\n\u003cp\u003eIn a 600 sq. ft. home with two enclosed bedrooms, a separate kitchen, and a narrow hallway, the same unit may have enough BTUs on paper without successfully balancing all the rooms.\u003c\/p\u003e\n\u003cp\u003eThis is an error we constantly strive to avoid in \u003cstrong\u003eHVAC installation\u003c\/strong\u003e: confusing heating and cooling capacity with air distribution.\u003c\/p\u003e\n\u003cp\u003eA heat pump cannot cool a bedroom effectively if air almost never reaches it. In some configurations, a different capacity, another wall-head position, or a multi-zone solution may deliver better results.\u003c\/p\u003e\n\u003ch3\u003e23 dB(A) at low speed: a strong point for bedrooms and offices\u003c\/h3\u003e\n\u003cp\u003eThe SENE-12EL’s indoor sound level drops to \u003cstrong\u003e23 dB(A)\u003c\/strong\u003e at low speed. The documentation indicates a range reaching approximately \u003cstrong\u003e41.5 dB(A)\u003c\/strong\u003e at higher speeds. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIndoor airflow varies by mode:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e559.2 CFM in Turbo mode\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e423.8 CFM at high speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e211.9 CFM at medium speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e153 CFM at low speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis range allows the unit to operate very gently when the load is low, then significantly increase the airflow when the room needs to be brought back to the requested temperature quickly.\u003c\/p\u003e\n\u003cp\u003eFor a home office or bedroom, low-speed operation can make a big difference. For a more open area, the ability to increase the airflow improves the reach of the air stream.\u003c\/p\u003e\n\u003ch3\u003eAutomatic louver control and real comfort in the room\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate automatic \u003cstrong\u003evertical and horizontal\u003c\/strong\u003e louver control.\u003c\/p\u003e\n\u003cp\u003eThis detail is far from secondary.\u003c\/p\u003e\n\u003cp\u003eOn a wall-mounted heat pump, the direction of the airflow directly affects:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ecooling range;\u003c\/li\u003e\n\u003cli\u003eheat distribution;\u003c\/li\u003e\n\u003cli\u003ethe sensation of a draft;\u003c\/li\u003e\n\u003cli\u003etemperature uniformity;\u003c\/li\u003e\n\u003cli\u003ecomfort near the unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen choosing the location of the indoor unit, we avoid directing airflow straight at a bed, sofa, or workstation whenever possible.\u003c\/p\u003e\n\u003cp\u003eA properly sized unit installed in the wrong location can be uncomfortable despite very good technical performance.\u003c\/p\u003e\n\u003ch3\u003eWiFi and Alexa: a useful feature when it is actually used\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE ELITE includes Alexa integration and app-based control. The brochure indicates that it is possible to schedule operating times, modify settings, and control the system remotely. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe kit described by Senville also includes a \u003cstrong\u003ewireless remote control\u003c\/strong\u003e and an \u003cstrong\u003eAlexa USB module\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a homeowner who leaves the house for several hours, this function can help avoid unnecessarily maintaining a very low temperature in cooling mode or a very high temperature in heating mode.\u003c\/p\u003e\n\u003cp\u003eIt is also practical in an office, rental property, or secondary residence.\u003c\/p\u003e\n\u003ch3\u003eSelf-diagnosis and leak detection\u003c\/h3\u003e\n\u003cp\u003eSenville mentions an integrated \u003cstrong\u003eself-diagnosis and leak detection\u003c\/strong\u003e system, designed to help flag certain problems and facilitate maintenance. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis does not replace a professional diagnosis.\u003c\/p\u003e\n\u003cp\u003eWhen a heat pump loses capacity, frosts abnormally, produces an unusual noise, or displays an error code, the actual cause must be determined. A problem with a sensor, motor, refrigerant charge, drainage, or electronic control board can sometimes produce similar symptoms.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, an \u003cstrong\u003eHVAC service call\u003c\/strong\u003e therefore involves interpreting symptoms using actual measurements rather than simply resetting the unit.\u003c\/p\u003e\n\u003ch2\u003eWhat determines the quality of a SENVILLE ELITE 12,000 BTU installation\u003c\/h2\u003e\n\u003ch3\u003eR-454B: an important change from R-410A\u003c\/h3\u003e\n\u003cp\u003eThe SENE-12EL uses \u003cstrong\u003eR-454B\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003ePage 5 of the brochure indicates a charge of approximately \u003cstrong\u003e44.09 oz\u003c\/strong\u003e and a precharge corresponding to approximately \u003cstrong\u003e24.67 feet\u003c\/strong\u003e of piping. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville also specifies that a 50-foot installation requires refrigerant to be added on site by the installer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAirGreen’s documentation specifies refrigerant line diameters of \u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eR-454B belongs to the A2L refrigerant category. This requires appropriate procedures during installation and service.\u003c\/p\u003e\n\u003cp\u003eFor us, this change makes the quality of commissioning even more important:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eproperly executed connections;\u003c\/li\u003e\n\u003cli\u003eleak testing;\u003c\/li\u003e\n\u003cli\u003eevacuation;\u003c\/li\u003e\n\u003cli\u003ea charge suited to the actual length;\u003c\/li\u003e\n\u003cli\u003echecking operation after startup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe precharge never replaces evacuation\u003c\/h3\u003e\n\u003cp\u003eA common idea with mini-splits is that a precharged system can simply be connected and then opened.\u003c\/p\u003e\n\u003cp\u003eThis is not how a professional installation should be carried out.\u003c\/p\u003e\n\u003cp\u003eThe refrigerant lines initially contain air and moisture. Before releasing the refrigerant charge into the circuit, proper evacuation is necessary.\u003c\/p\u003e\n\u003cp\u003eA careless installation can cause the following over the medium or long term:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea drop in performance;\u003c\/li\u003e\n\u003cli\u003eabnormally high consumption;\u003c\/li\u003e\n\u003cli\u003eunstable pressures;\u003c\/li\u003e\n\u003cli\u003ecompressor problems;\u003c\/li\u003e\n\u003cli\u003eavoidable service calls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe quality of the installation therefore directly affects the performance of a heat pump that is highly efficient on paper.\u003c\/p\u003e\n\u003ch3\u003eDimensions: an indoor head wider than a 9,000 BTU model\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately \u003cstrong\u003e40.04 in wide × 9.53 in deep × 12.56 in high\u003c\/strong\u003e and weighs approximately \u003cstrong\u003e28.22 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures approximately \u003cstrong\u003e35.04 × 13.46 × 26.50 in\u003c\/strong\u003e, with a weight of approximately \u003cstrong\u003e99.65 lb\u003c\/strong\u003e. The stated outdoor sound level is \u003cstrong\u003e57 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTherefore, before installation, we must check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe available wall width;\u003c\/li\u003e\n\u003cli\u003ethe necessary clearances;\u003c\/li\u003e\n\u003cli\u003ethe position of the windows;\u003c\/li\u003e\n\u003cli\u003ethe presence of molding;\u003c\/li\u003e\n\u003cli\u003ethe ceiling height;\u003c\/li\u003e\n\u003cli\u003ethe piping route;\u003c\/li\u003e\n\u003cli\u003efuture access to the filters;\u003c\/li\u003e\n\u003cli\u003ethe actually available outdoor space.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eParticularly in Montreal, a location that appears ideal indoors can be difficult to replicate outdoors because of a balcony, a narrow passage, or neighboring-property constraints.\u003c\/p\u003e\n\u003ch3\u003eElectrical requirements: relatively modest demand for a cold-climate heat pump\u003c\/h3\u003e\n\u003cp\u003eThe brochure indicates a \u003cstrong\u003e208\/230 V single-phase\u003c\/strong\u003e power supply, an \u003cstrong\u003eMCA of 3.0 A\u003c\/strong\u003e, and a maximum protection of \u003cstrong\u003e15 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe indicated connection wiring is \u003cstrong\u003e14\/4 AWG\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe final circuit must, of course, comply with the nameplate data and the electrical requirements applicable to the job site.\u003c\/p\u003e\n\u003cp\u003eThis relatively modest demand is an advantage when we compare this unit with much larger heat pumps that may require significantly larger circuits.\u003c\/p\u003e\n\u003ch3\u003eDrainage and dehumidification: an often-overlooked aspect\u003c\/h3\u003e\n\u003cp\u003eThe documentation indicates a dehumidification capacity of approximately \u003cstrong\u003e0.5 L\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eEven though this value is lower than that of some higher-capacity models, condensate must be discharged continuously during humid periods.\u003c\/p\u003e\n\u003cp\u003eWe favor a properly sloped gravity drain whenever it is feasible. A condensate pump can be used when no suitable gravity route is available, but it adds a mechanical component that will eventually require maintenance.\u003c\/p\u003e\n\u003cp\u003eAn improperly installed drain can cause:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eindoor leaks;\u003c\/li\u003e\n\u003cli\u003eodors;\u003c\/li\u003e\n\u003cli\u003enoise;\u003c\/li\u003e\n\u003cli\u003efinish damage;\u003c\/li\u003e\n\u003cli\u003eunnecessary service calls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eLogisVert rebate displayed at $1,320\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen fact sheet provided for this model displays a \u003cstrong\u003e$1,320 LogisVert provincial rebate\u003c\/strong\u003e, with an update dated November 26, 2025.\u003c\/p\u003e\n\u003cp\u003eThis information is consistent with the presence of the \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e and \u003cstrong\u003eCold Climate\u003c\/strong\u003e certifications indicated for the combination.\u003c\/p\u003e\n\u003cp\u003eHowever, rebate programs must always be verified when the quote is prepared. The final amount may depend on the exact AHRI number, the building, and the conditions of the program in effect.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner comparing the SENVILLE ELITE with a less expensive but ineligible unit, this difference can significantly change the project’s net cost.\u003c\/p\u003e\n\u003ch3\u003eWarranty: here, the brochure and the AirGreen fact sheet agree on the compressor and parts\u003c\/h3\u003e\n\u003cp\u003eSenville’s documentation indicates a warranty of \u003cstrong\u003e10 years on the compressor and 10 years on the parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe table on page 5 also confirms \u003cstrong\u003e10-year compressor \/ 10-year parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specifications sheet states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10-year compressor – 10-year parts – 0-year labor\u003c\/strong\u003e, with the possibility of an additional warranty.\u003c\/p\u003e\n\u003cp\u003eIt therefore remains important to distinguish the equipment warranty from labor coverage. These are two different forms of protection.\u003c\/p\u003e\n\u003ch3\u003eA selection error we seek to avoid\u003c\/h3\u003e\n\u003cp\u003eA homeowner can easily compare two 12,000 BTU heat pumps and conclude that they are equivalent because their rated capacity is identical.\u003c\/p\u003e\n\u003cp\u003eThat is not the case.\u003c\/p\u003e\n\u003cp\u003eBetween two 12,000 BTU models, the differences may involve:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe SEER2;\u003c\/li\u003e\n\u003cli\u003ethe HSPF2;\u003c\/li\u003e\n\u003cli\u003ethe capacity at -15°C;\u003c\/li\u003e\n\u003cli\u003ethe capacity at -30°C;\u003c\/li\u003e\n\u003cli\u003ethe modulation range;\u003c\/li\u003e\n\u003cli\u003ethe noise level;\u003c\/li\u003e\n\u003cli\u003ethe airflow;\u003c\/li\u003e\n\u003cli\u003ethe refrigerant;\u003c\/li\u003e\n\u003cli\u003ethe warranty;\u003c\/li\u003e\n\u003cli\u003erebates;\u003c\/li\u003e\n\u003cli\u003ethe quality of the WiFi control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE ELITE 12,000 BTU\u003c\/strong\u003e is particularly appealing when winter heating genuinely matters in the decision.\u003c\/p\u003e\n\u003cp\u003eFor a customer who only wants to cool their home for a few weeks a year, another solution may sometimes be sufficient. For a homeowner who wants to reduce the use of electric baseboard heaters during much of the winter, cold-climate performance becomes much more important.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for installation\u003c\/h3\u003e\n\u003cp\u003eAt AirGreen, we do not want a homeowner to choose a heat pump solely because it has a high SEER2 rating or a spectacular minimum operating temperature.\u003c\/p\u003e\n\u003cp\u003eWe review the entire project:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003esizing;\u003c\/li\u003e\n\u003cli\u003eindoor unit location;\u003c\/li\u003e\n\u003cli\u003eair distribution;\u003c\/li\u003e\n\u003cli\u003eoutdoor unit location;\u003c\/li\u003e\n\u003cli\u003eline-set length;\u003c\/li\u003e\n\u003cli\u003edrainage;\u003c\/li\u003e\n\u003cli\u003eelectrical supply;\u003c\/li\u003e\n\u003cli\u003eclearances;\u003c\/li\u003e\n\u003cli\u003eaccessibility for maintenance;\u003c\/li\u003e\n\u003cli\u003eactual performance in cold temperatures;\u003c\/li\u003e\n\u003cli\u003epotential eligibility for rebates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe serve \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e for ductless heat pump projects and HVAC services.\u003c\/p\u003e\n\u003cp\u003eThe SENVILLE ELITE 12,000 BTU offers a particularly well-balanced technical combination for the region’s climate: \u003cstrong\u003eSEER2 of 29.4, operation down to -30°C, cold-climate certification, WiFi, low noise level, and R-454B refrigerant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIts actual value, however, depends on the building in which it will be installed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTo obtain a quote, validate the sizing, or confirm whether the SENVILLE ELITE 12,000 BTU is suitable for your home, condo, or office, contact AirGreen. We can verify the required capacity, installation, electrical requirements, and applicable rebates before the work begins.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119949394212,"sku":"SENE-12EL-OH","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_ELITE_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_95a26739-2a5e-4d59-b90b-75cf32fb4480.png?v=1789051013"},{"product_id":"thermopompe-murale-senville-elite-18000-btu-montreal-laval-rive-sud","title":"SENVILLE ELITE Wall-Mounted Heat Pump | 18000 BTU | Montréal, Laval, South Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eAn 18,000 BTU heat pump that stands out most when the Quebec winter begins to put other appliances to the test\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE ELITE 18,000 BTU R454B Wall-Mounted Heat Pump\u003c\/strong\u003e should not be viewed as simply a larger version of a standard residential mini-split. Its technical specifications instead show an appliance designed around three very concrete priorities: particularly high seasonal efficiency, heating capacity maintained at low temperatures, and a sufficiently broad modulation range to adapt to the load variations of a Quebec home.\u003c\/p\u003e\n\u003cp\u003eFor an installation in \u003cstrong\u003eMontreal, Laval, Longueuil, Boucherville, on the South Shore, the North Shore, or elsewhere in Greater Montreal\u003c\/strong\u003e, these are precisely the features that matter to us at AirGreen.\u003c\/p\u003e\n\u003cp\u003eThe certified match is listed under reference \u003cstrong\u003eAHRI 217607369\u003c\/strong\u003e, with models \u003cstrong\u003eSENE-18EL-IHH and SENE-18EL-OH\u003c\/strong\u003e. The AHRI certificate confirms a rated cooling capacity of \u003cstrong\u003e18,000 BTU\/h\u003c\/strong\u003e, a \u003cstrong\u003eSEER2 of 25.6\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 15.0\u003c\/strong\u003e, a rated heating capacity of \u003cstrong\u003e20,000 BTU\/h\u003c\/strong\u003e, and an \u003cstrong\u003eHSPF2 of 16.2 for Region IV\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese figures place this Senville ELITE in a category quite different from an entry-level heat pump intended primarily for summer cooling.\u003c\/p\u003e\n\u003ch3\u003eThe essential technical figures for the 18,000 BTU SENVILLE ELITE\u003c\/h3\u003e\n\u003cp\u003eThe official brochure describes the SENE-18EL as an \u003cstrong\u003e18,000 BTU\u003c\/strong\u003e wall-mounted heat pump, ENERGY STAR certified, designed for cold-climate heating and covered by a ten-year manufacturer’s warranty on the compressor. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe main features are as follows:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eRated cooling capacity: 18,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling range: 12,600 to 27,900 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating capacity: 20,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating range: 9,700 to 29,700 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 25.6\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 15.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-4: 16.2\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-5: 10.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated COP: 4.40\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMinimum outdoor heating temperature: -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant charge: 63.45 oz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePrecharge: 25 ft\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMinimum circuit ampacity: 24.9 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum protection: 25 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant piping: 1\/4 in – 1\/2 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi and Alexa: included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWarranty: 10-year compressor \/ 10-year parts\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI reference: 217607369\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePage 4 of the brochure mainly highlights the true extent of the modulation range. In heating mode, capacity can vary from \u003cstrong\u003e9,700 to 29,700 BTU\/h\u003c\/strong\u003e, while in cooling mode it can reach up to \u003cstrong\u003e27,900 BTU\/h\u003c\/strong\u003e under certain conditions. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e18,000 BTU on the label, up to 29,700 BTU under certain conditions\u003c\/h3\u003e\n\u003cp\u003eThis is a point we always take the time to explain during a \u003cstrong\u003ewall-mounted heat pump estimate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe 18,000 BTU figure does not mean that the unit constantly operates at 18,000 BTU. The Inverter compressor adjusts its speed according to the building’s needs.\u003c\/p\u003e\n\u003cp\u003eThis Senville ELITE can therefore reduce its output when heating demand is low, then increase it when conditions become more demanding.\u003c\/p\u003e\n\u003cp\u003eIn an open-concept area in \u003cstrong\u003eBrossard\u003c\/strong\u003e or \u003cstrong\u003eLongueuil\u003c\/strong\u003e, for example, a heat pump may need only a fraction of its capacity on a mild October day. On a much colder January morning, the same unit can significantly increase its output.\u003c\/p\u003e\n\u003cp\u003eThis modulation improves several aspects of comfort:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emore consistent indoor temperature;\u003c\/li\u003e\n\u003cli\u003efewer abrupt starts and stops;\u003c\/li\u003e\n\u003cli\u003ereduced temperature fluctuations;\u003c\/li\u003e\n\u003cli\u003egenerally quieter operation at partial load;\u003c\/li\u003e\n\u003cli\u003ebetter adaptation to the shoulder seasons.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA properly sized unit does not need to operate at full capacity continuously to be efficient.\u003c\/p\u003e\n\u003ch3\u003e25.6 SEER2: very high cooling efficiency\u003c\/h3\u003e\n\u003cp\u003eWith a \u003cstrong\u003eSEER2 of 25.6\u003c\/strong\u003e, the SENVILLE ELITE 18,000 BTU achieves remarkable efficiency for a wall-mounted heat pump of this capacity.\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure itself highlights the \u003cstrong\u003e25.6 SEER2\u003c\/strong\u003e, ENERGY STAR certification, and significant potential energy savings compared with less efficient systems. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, however, we avoid automatically converting SEER2 into an annual savings amount.\u003c\/p\u003e\n\u003cp\u003eThe actual bill depends on many factors:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003equality of the insulation;\u003c\/li\u003e\n\u003cli\u003eprogrammed indoor temperature;\u003c\/li\u003e\n\u003cli\u003esolar exposure;\u003c\/li\u003e\n\u003cli\u003euse of air conditioning;\u003c\/li\u003e\n\u003cli\u003esize of the space;\u003c\/li\u003e\n\u003cli\u003ereplaced system;\u003c\/li\u003e\n\u003cli\u003econdition of the windows;\u003c\/li\u003e\n\u003cli\u003eair infiltration;\u003c\/li\u003e\n\u003cli\u003eoccupant habits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSEER2 remains an excellent tool for comparing equipment tested using the same methods.\u003c\/p\u003e\n\u003ch3\u003eEER2 of 15.0: a figure that also deserves attention\u003c\/h3\u003e\n\u003cp\u003eSEER2 indicates seasonal efficiency. The \u003cstrong\u003eEER2 of 15.0\u003c\/strong\u003e, for its part, indicates cooling performance under a defined test condition.\u003c\/p\u003e\n\u003cp\u003eFor an 18,000 BTU unit, a high EER2 becomes relevant on hot days when the heat pump operates for long periods.\u003c\/p\u003e\n\u003cp\u003eIn areas such as \u003cstrong\u003eMontreal, Laval, or the South Shore\u003c\/strong\u003e, where episodes of heat accompanied by humidity are common in summer, an efficient, properly sized heat pump can operate for long periods at a modulated output instead of constantly alternating between completely off and full capacity.\u003c\/p\u003e\n\u003ch3\u003eThe real advantage of this ELITE: heating down to -30 °C\u003c\/h3\u003e\n\u003cp\u003eThe brochure explicitly states a minimum operating temperature for heating of \u003cstrong\u003e-30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis does not mean that the heat pump maintains exactly the same efficiency or capacity at all temperatures. That is precisely why performance must be examined at low-temperature points.\u003c\/p\u003e\n\u003cp\u003eThe data associated with the unit indicate, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eapproximately \u003cstrong\u003e19,300 BTU\/h at -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eapproximately \u003cstrong\u003e22,600 BTU\/h at -15 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eapproximately \u003cstrong\u003e11,900 BTU\/h at -30 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe fact that some certified values may appear to increase between two temperatures sometimes surprises homeowners. With an Inverter heat pump, certification data correspond to specific operating points and test conditions; they do not necessarily represent a simple linear curve in which every temperature decrease automatically results in lower capacity than at the previous point.\u003c\/p\u003e\n\u003cp\u003eWhat is particularly significant for a Quebec homeowner is the capacity of \u003cstrong\u003e11,900 BTU\/h still specified at -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt this temperature, many standard heat pumps are simply no longer designed to operate.\u003c\/p\u003e\n\u003ch3\u003eA COP still above 1 at -30 °C\u003c\/h3\u003e\n\u003cp\u003eCOP, or coefficient of performance, helps explain how much heat the heat pump delivers compared with the electricity it consumes.\u003c\/p\u003e\n\u003cp\u003eThe data provided for this Senville indicate, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOP of approximately 3.01 at -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOP of approximately 2.34 at -15 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOP of approximately 1.45 at -30 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA COP of 1 corresponds approximately to resistive electric heating, which directly transforms electricity into heat.\u003c\/p\u003e\n\u003cp\u003eA COP above 1 means that the heat pump provides more thermal energy than the electricity directly consumed by its compressor.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-30 °C\u003c\/strong\u003e, a COP of 1.45 therefore indicates that the heat pump still retains a theoretical advantage over electric resistance heating under the relevant test conditions, even though its performance is obviously much lower than that observed in mild weather.\u003c\/p\u003e\n\u003cp\u003eThis is exactly the nuance we find important at AirGreen: a heat pump is not absolutely “efficient” or “inefficient.” Its performance constantly changes with the outdoor temperature and the building’s load.\u003c\/p\u003e\n\u003ch3\u003eUp to 20,000 BTU of nominal heating capacity for a unit sold as 18,000 BTU\u003c\/h3\u003e\n\u003cp\u003eThe brochure lists a \u003cstrong\u003enominal heating capacity of 20,000 BTU\/h\u003c\/strong\u003e, despite a nominal cooling capacity of 18,000 BTU\/h. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis distinction is normal for certain high-performance heat pumps and particularly relevant in Quebec, where heating often accounts for a much larger share of annual use than in other markets.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner who wants to reduce the use of electric baseboard heaters, we always look at the heating capacity rather than relying solely on the number of BTUs printed in the product's commercial name.\u003c\/p\u003e\n\u003ch3\u003eA heat pump for 750 to 1,000 sq. ft.?\u003c\/h3\u003e\n\u003cp\u003eSenville recommends this unit for approximately \u003cstrong\u003e750 to 1,000 sq. ft.\u003c\/strong\u003e, depending on the layout. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe consider this indication a guideline, not a rule.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, when we assess an 850- or 900-sq.-ft. home, we specifically check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eopen or partitioned layout;\u003c\/li\u003e\n\u003cli\u003enumber of windows;\u003c\/li\u003e\n\u003cli\u003etheir orientation;\u003c\/li\u003e\n\u003cli\u003einsulation level;\u003c\/li\u003e\n\u003cli\u003ethe floor where the space is located;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003eexposed walls;\u003c\/li\u003e\n\u003cli\u003eair circulation toward adjacent rooms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOur own installation experience in Greater Montreal also shows that a home of approximately \u003cstrong\u003e800 to 900 sq. ft.\u003c\/strong\u003e can often fall within a range of \u003cstrong\u003e12,000 to 18,000 BTU\u003c\/strong\u003e, but the correct capacity cannot be determined solely from the floor area. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eA typical case in Montreal\u003c\/h4\u003e\n\u003cp\u003eLet’s consider an approximately 850 sq. ft. duplex floor in Montreal.\u003c\/p\u003e\n\u003cp\u003eIf the living room, dining room, and kitchen are largely connected, an 18,000 BTU unit installed in a central location can distribute its air effectively.\u003c\/p\u003e\n\u003cp\u003eNow let’s consider the same floor area with three closed bedrooms, a narrow hallway, and a separate kitchen.\u003c\/p\u003e\n\u003cp\u003eEven with a high-capacity heat pump, air cannot pass through walls.\u003c\/p\u003e\n\u003cp\u003eIn this second scenario, increasing the capacity even further would rarely be the solution. A different system configuration may be more appropriate.\u003c\/p\u003e\n\u003cp\u003eThis is a mistake we regularly encounter in the HVAC field: \u003cstrong\u003econfusing insufficient capacity with poor air distribution\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003eSENVILLE ELITE installation: the details that determine its actual performance\u003c\/h2\u003e\n\u003ch3\u003eAn airflow rate of up to 812 CFM\u003c\/h3\u003e\n\u003cp\u003eThis heat pump can move a lot of air.\u003c\/p\u003e\n\u003cp\u003eThe brochure states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e318 CFM at low speed\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e412 CFM\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e618 CFM\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eup to \u003cstrong\u003e812 CFM in Turbo mode\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe indoor sound level similarly ranges from \u003cstrong\u003e27 dB(A)\u003c\/strong\u003e to approximately \u003cstrong\u003e54.5 dB(A)\u003c\/strong\u003e in Turbo mode. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt low speed, 27 dB(A) allows for very quiet operation.\u003c\/p\u003e\n\u003cp\u003eBut 812 CFM represents considerable airflow for a wall-mounted unit. The evaporator's orientation then becomes essential.\u003c\/p\u003e\n\u003cp\u003eIf the unit blows directly toward a wall a few feet in front of it, some of its air-distribution capacity is wasted. In a large open area, we instead look for an orientation that allows the airflow to travel across the room and mix naturally with the surrounding air.\u003c\/p\u003e\n\u003ch3\u003eAn indoor unit nearly four feet wide\u003c\/h3\u003e\n\u003cp\u003eThe indoor module measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e46.85 in. wide × 11.02 in. deep × 13.46 in. high\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt weighs approximately \u003cstrong\u003e43.65 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e37.24 × 16.14 × 31.89 in.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e130.29 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese dimensions genuinely change the installation preparation.\u003c\/p\u003e\n\u003cp\u003eIn a recent condo in \u003cstrong\u003eLaval\u003c\/strong\u003e, we may have a large, unobstructed wall available. In an older plex in \u003cstrong\u003eMontréal\u003c\/strong\u003e, we sometimes have to work around a window, a door, trim, a load-bearing wall, or a stairwell.\u003c\/p\u003e\n\u003cp\u003eWe therefore check the dimensions before even bringing the unit to the worksite.\u003c\/p\u003e\n\u003ch3\u003eThe outdoor unit requires a proper support structure\u003c\/h3\u003e\n\u003cp\u003eAt more than 130 lb, the condenser is not a small, lightweight outdoor unit.\u003c\/p\u003e\n\u003cp\u003eIts support must be suitable for the weight, vibrations, and especially Québec's winter conditions.\u003c\/p\u003e\n\u003cp\u003eWe must plan for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003esufficient height above accumulated snow;\u003c\/li\u003e\n\u003cli\u003eadequate airflow;\u003c\/li\u003e\n\u003cli\u003eaccess for servicing;\u003c\/li\u003e\n\u003cli\u003ea location that limits vibration transmission;\u003c\/li\u003e\n\u003cli\u003ereasonable protection from water and ice coming from a roof;\u003c\/li\u003e\n\u003cli\u003ecompliance with applicable municipal requirements and clearance specifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn \u003cstrong\u003eLongueuil, Boucherville, Laval, or Montréal\u003c\/strong\u003e, the outdoor location is often just as important as the indoor location.\u003c\/p\u003e\n\u003ch3\u003e1\/4 in.–1\/2 in. piping: what to watch for during a replacement\u003c\/h3\u003e\n\u003cp\u003eThe unit uses a combination of \u003cstrong\u003e1\/4 in. and 1\/2 in.\u003c\/strong\u003e refrigerant piping.\u003c\/p\u003e\n\u003cp\u003eWhen a homeowner replaces an old heat pump, we never automatically confirm that the existing piping can be retained.\u003c\/p\u003e\n\u003cp\u003eWe check in particular:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe actual diameters;\u003c\/li\u003e\n\u003cli\u003ethe length;\u003c\/li\u003e\n\u003cli\u003ethe condition of the copper;\u003c\/li\u003e\n\u003cli\u003ethe condition of the insulation;\u003c\/li\u003e\n\u003cli\u003ecompatibility with the new equipment;\u003c\/li\u003e\n\u003cli\u003ethe absence of contamination;\u003c\/li\u003e\n\u003cli\u003ethe route through the building.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eReusing a poor line set simply because it is already concealed in a wall can cancel out all the benefits of a high-efficiency heat pump.\u003c\/p\u003e\n\u003ch3\u003eR454B and 25-foot precharge\u003c\/h3\u003e\n\u003cp\u003eThe Senville ELITE uses \u003cstrong\u003eR454B refrigerant\u003c\/strong\u003e and contains a specified charge of \u003cstrong\u003e63.45 oz\u003c\/strong\u003e. The system is precharged for a piping length of up to \u003cstrong\u003e25 ft\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe brochure also specifies that with a 50-foot line set, additional refrigerant must be added on site by the installer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eR454B belongs to the A2L refrigerant category. The Senville manual specifically provides for a leak-detection system on the affected units and explains that, if a leak is detected, the compressor stops and the indoor fan is activated according to a safety sequence. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor us, this reinforces the importance of a \u003cstrong\u003eprofessional HVAC installation\u003c\/strong\u003e, using tools and procedures suited to the refrigerant being used.\u003c\/p\u003e\n\u003ch3\u003e208\/230 V, MCA of 24.9 A, and maximum protection of 25 A\u003c\/h3\u003e\n\u003cp\u003eThe system operates on \u003cstrong\u003e208\/230 V single-phase, 60 Hz\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe technical specifications state:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMCA: 24.9 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003emaximum protection: 25 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003epower supply range: \u003cstrong\u003e187 to 253 V\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003especified interconnection cable: \u003cstrong\u003e14\/4 AWG\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe use these values to plan the project, but the electrical installation must always be validated based on the panel and the building’s actual conditions.\u003c\/p\u003e\n\u003cp\u003eA high-efficiency heat pump installed on an inadequate circuit remains a poor installation.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi, Alexa, and integrated diagnostics\u003c\/h3\u003e\n\u003cp\u003eSmart control is one of the model’s useful features.\u003c\/p\u003e\n\u003cp\u003eThe brochure mentions compatibility with \u003cstrong\u003eAlexa\u003c\/strong\u003e, app control, the ability to set schedules, and the option to change settings remotely. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt also mentions \u003cstrong\u003eself-diagnostic and leak-detection\u003c\/strong\u003e features.\u003c\/p\u003e\n\u003cp\u003eIn a primary residence, Wi-Fi makes daily management easier. In a cottage, rental unit, or intermittently occupied property, remote control becomes even more relevant.\u003c\/p\u003e\n\u003ch3\u003eLogisVert: why the $2,316 amount corresponds precisely to this model\u003c\/h3\u003e\n\u003cp\u003eThe heating capacity indicated at \u003cstrong\u003e-8°C is 19,300 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eHydro-Québec currently offers, when all program conditions are met, \u003cstrong\u003e$120 per 1,000 BTU\/h at -8°C\u003c\/strong\u003e for a cold-climate ENERGY STAR-certified heat pump. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe calculation for this Senville is therefore:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e19.3 × $120 = $2,316\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is the \u003cstrong\u003e$2,316 LogisVert grant\u003c\/strong\u003e amount displayed for this model.\u003c\/p\u003e\n\u003cp\u003eThe unit is ENERGY STAR certified and presented as a cold-climate heat pump. AHRI certification 217607369 is active and concerns the exact pairing targeted here. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor owners of multi-unit residential buildings meeting Hydro-Québec’s specific criteria, a bonus of \u003cstrong\u003e$100 per 1,000 BTU\/h at -8 °C\u003c\/strong\u003e can bring the total assistance to \u003cstrong\u003e$220 per 1,000 BTU\/h\u003c\/strong\u003e, for installations eligible since June 15, 2026. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt 19,300 BTU\/h, this would theoretically represent:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e19.3 × $220 = $4,246\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis bonus is not automatic. The building must meet the specific conditions of the multi-unit residential program.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we always verify the criteria applicable to the address and installation date rather than assuming a subsidy is available solely because the model is eligible.\u003c\/p\u003e\n\u003ch3\u003eA 10-year warranty on the compressor and parts\u003c\/h3\u003e\n\u003cp\u003eThe Senville brochure indicates a warranty of:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years on the compressor and 10 years on the parts.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt also specifies that professional installation is required to maintain warranty coverage. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen information sheet therefore presents the configuration as \u003cstrong\u003e10-10-0 years\u003c\/strong\u003e, with the option of additional protection.\u003c\/p\u003e\n\u003cp\u003eAs always, the exact registration and warranty conditions stated in the final quotation must be kept with the invoice and serial numbers.\u003c\/p\u003e\n\u003ch3\u003eThe classic problem we want to avoid: buying an ELITE and installing it like an ordinary heat pump\u003c\/h3\u003e\n\u003cp\u003eA heat pump with \u003cstrong\u003e25.6 SEER2\u003c\/strong\u003e, a high HSPF2, and heating capacity at -30 °C may lose some of its appeal if several details are overlooked.\u003c\/p\u003e\n\u003cp\u003eIn our profession, we encounter errors such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eindoor unit positioned solely to shorten the piping;\u003c\/li\u003e\n\u003cli\u003econdenser too close to the ground;\u003c\/li\u003e\n\u003cli\u003epoorly insulated pipes;\u003c\/li\u003e\n\u003cli\u003edrainage line without adequate slope;\u003c\/li\u003e\n\u003cli\u003eelectrical circuit selected without checking the nameplate data;\u003c\/li\u003e\n\u003cli\u003eunit oversized for the room;\u003c\/li\u003e\n\u003cli\u003eold copper reused without validation;\u003c\/li\u003e\n\u003cli\u003econdenser installed beneath a roof drainage outlet;\u003c\/li\u003e\n\u003cli\u003eservice access almost impossible after the work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProduct quality does not make up for these errors.\u003c\/p\u003e\n\u003ch3\u003eMaintenance that preserves performance\u003c\/h3\u003e\n\u003cp\u003eThe owner can directly contribute to the proper operation of their system.\u003c\/p\u003e\n\u003cp\u003eWe particularly recommend:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eclean the filters regularly;\u003c\/li\u003e\n\u003cli\u003ekeep the outdoor unit clear of leaves and snow;\u003c\/li\u003e\n\u003cli\u003edo not block the indoor airflow with furniture;\u003c\/li\u003e\n\u003cli\u003emonitor the drain discharge;\u003c\/li\u003e\n\u003cli\u003ehave the unit inspected if its capacity decreases;\u003c\/li\u003e\n\u003cli\u003eplan for a \u003cstrong\u003edeep cleaning of the wall-mounted heat pump\u003c\/strong\u003e when the indoor heat exchanger is dirty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWith a unit capable of moving up to \u003cstrong\u003e812 CFM\u003c\/strong\u003e, keeping the heat exchanger and filters clean is especially important. Reduced airflow can affect comfort, energy consumption, and the unit’s operation.\u003c\/p\u003e\n\u003ch3\u003eWhich homeowners do we primarily recommend the 18,000 BTU SENVILLE ELITE to?\u003c\/h3\u003e\n\u003cp\u003eThis heat pump becomes particularly appealing when the homeowner is looking to combine:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ewinter heating down to -30 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ehigh cooling efficiency;\u003c\/li\u003e\n\u003cli\u003ehigh capacity without immediately moving up to a 24,000 BTU model;\u003c\/li\u003e\n\u003cli\u003equiet operation at low speed;\u003c\/li\u003e\n\u003cli\u003eENERGY STAR cold-climate certification;\u003c\/li\u003e\n\u003cli\u003eWi-Fi control;\u003c\/li\u003e\n\u003cli\u003eR454B refrigerant;\u003c\/li\u003e\n\u003cli\u003elong-term warranty;\u003c\/li\u003e\n\u003cli\u003eattractive LogisVert rebate;\u003c\/li\u003e\n\u003cli\u003eheating capable of continuing well beyond the range of a standard mini-split.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor someone whose only priority is affordable summer cooling, some simpler product lines may be sufficient.\u003c\/p\u003e\n\u003cp\u003eFor someone who wants to use their heat pump as a true tool for reducing electric heating during Quebec winters, the ELITE becomes much more relevant.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for this installation?\u003c\/h3\u003e\n\u003cp\u003eAt AirGreen, our job is to match the heat pump to the building, not simply sell a number of BTUs.\u003c\/p\u003e\n\u003cp\u003eFor an \u003cstrong\u003e18,000 BTU SENVILLE ELITE in Montreal, Laval, Longueuil, on the South Shore, or the North Shore\u003c\/strong\u003e, we check the heating load, airflow, indoor location, outdoor support, piping, refrigerant-circuit length, drainage, and electrical supply before commissioning.\u003c\/p\u003e\n\u003cp\u003eOur installation process in Greater Montreal is based in part on an assessment of the floor area, room layout, insulation, windows, and the actual volume to be heated and cooled. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is particularly important with a high-performance model like this: we want the features customers pay for on paper to genuinely translate into comfort and savings in their home.\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen quote for your 18,000 BTU SENVILLE ELITE\u003c\/h3\u003e\n\u003cp\u003eFor a \u003cstrong\u003eSENVILLE ELITE 18,000 BTU R454B wall-mounted heat pump installation in Montreal, Laval, Longueuil, on the South Shore, North Shore, or in Montérégie\u003c\/strong\u003e, contact AirGreen.\u003c\/p\u003e\n\u003cp\u003eWe can verify the sizing, location, electrical installation, piping, the \u003cstrong\u003e$2,316 LogisVert rebate\u003c\/strong\u003e applicable under the current conditions, and the various warranty options for your project.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119949426980,"sku":"SENE-18EL-IHH","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_ELITE_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_a195dc07-5909-47a0-852e-a13dab3449fc.png?v=1789051016"},{"product_id":"thermopompe-murale-senville-elite-24000-btu-montreal-laval-rive-sud","title":"SENVILLE ELITE Wall-Mounted Heat Pump | 24000 BTU | Montréal, Laval, South Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 24,000 BTU heat pump for Quebec’s climate: the figures that really matter\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE ELITE 24,000 BTU\u003c\/strong\u003e targets a very specific market segment: large residential spaces, open-concept areas, certain commercial properties, and homes where a wall-mounted heat pump must provide a significant portion of the heating during Quebec winters. For an installation in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, the South Shore, or elsewhere in Montérégie\u003c\/strong\u003e, however, its rated capacity of 24,000 BTU is only a starting point.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we focus primarily on what happens when the temperature drops. A heat pump may carry a “heats down to -30 °C” label without actually producing 24,000 BTU at -30 °C. This distinction completely changes how the system should be sized.\u003c\/p\u003e\n\u003cp\u003eThe proposed combination consists of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENE-24EL-OH\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: SENE-24EL-IHH\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI reference: 218069801\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated capacity: 24,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR – cold climate: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi: included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAlexa smart control: compatible\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAdvertised minimum heating temperature: -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe AHRI certificate dated May 22, 2026, precisely confirms the \u003cstrong\u003eSENE-24EL-OH + SENE-24EL-IHH\u003c\/strong\u003e combination, with a rated cooling capacity of 24,000 BTU\/h, a \u003cstrong\u003eSEER2 of 25.00\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 14.00\u003c\/strong\u003e, and an \u003cstrong\u003eHSPF2 Region IV of 11.00\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eAn important clarification regarding efficiency data\u003c\/h3\u003e\n\u003cp\u003eThere is currently a discrepancy between some commercial data published by Senville and the AHRI certificate corresponding to this exact combination.\u003c\/p\u003e\n\u003cp\u003eThe Senville documentation provided with this product lists, among other specifications, \u003cstrong\u003eSEER2 24.0\u003c\/strong\u003e, \u003cstrong\u003eEER2 11.0\u003c\/strong\u003e, HSPF2-4 of 15, and HSPF2-5 of 12.4. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e The official Senville page also includes these figures in its technical table. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the \u003cstrong\u003eSENE-24EL-OH \/ SENE-24EL-IHH\u003c\/strong\u003e system, however, we prioritize the specific reference from \u003cstrong\u003eAHRI certificate 218069801\u003c\/strong\u003e, particularly when confirming a model combination for a subsidy application or comparing certified performance.\u003c\/p\u003e\n\u003cp\u003eThis verification may seem very technical, but it prevents a common mistake when purchasing a heat pump: comparing two units based on their series name rather than on their \u003cstrong\u003eactual certified indoor\/outdoor combination\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat “heating down to -30 °C” really means\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE ELITE can operate in heating mode at outdoor temperatures as low as \u003cstrong\u003e-30 °C\u003c\/strong\u003e. The manufacturer's documentation confirms this operating limit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eNevertheless, the available capacity at different temperatures must be considered:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eOutdoor temperature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eIndicated heating capacity\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eCOP indicated\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-8 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e17,100 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e2,724\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-15 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e20,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e2,24\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-30 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e10,200 BTU\/h maximum\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1,354\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThis information is much more useful than simply stating “-30 °C.”\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-30 °C\u003c\/strong\u003e, 10,200 BTU\/h represents approximately 43% of the nominal 24,000 BTU capacity. In a house whose heat losses exceed this capacity, supplemental heating is therefore still necessary.\u003c\/p\u003e\n\u003cp\u003eThis is not a particular weakness of this heat pump. It is the normal behavior of an air-source heat pump: the more extreme the outdoor temperature becomes, the less heat is available in the outdoor air, and the harder the system must work to transfer it indoors.\u003c\/p\u003e\n\u003cp\u003eFor a property in \u003cstrong\u003eMontreal or Laval\u003c\/strong\u003e, where a few very cold days can significantly increase the heating load, we therefore need to know:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewhich part of the house the heat pump serves;\u003c\/li\u003e\n\u003cli\u003ewhat the actual heat losses are;\u003c\/li\u003e\n\u003cli\u003ewhich heating system remains available as backup;\u003c\/li\u003e\n\u003cli\u003ehow warm air will circulate between the rooms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy 24,000 BTU does not automatically mean “1,500 sq. ft.”\u003c\/h3\u003e\n\u003cp\u003eSenville presents this capacity as suitable, for guidance purposes, for spaces of approximately \u003cstrong\u003e1,000 to 1,500 sq. ft.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe never select a heat pump based on this rule alone.\u003c\/p\u003e\n\u003cp\u003eA well-insulated 1,200 sq. ft. floor in \u003cstrong\u003eLongueuil\u003c\/strong\u003e, with an open-plan layout and a reasonable amount of glazing, can be very different from a floor of the same size in a century-old duplex in \u003cstrong\u003eMontreal\u003c\/strong\u003e with high ceilings, poorly insulated walls, and large windows.\u003c\/p\u003e\n\u003cp\u003eAmong the factors we check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eactual area served;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003elevel of insulation;\u003c\/li\u003e\n\u003cli\u003eorientation and solar exposure;\u003c\/li\u003e\n\u003cli\u003ewindow dimensions and quality;\u003c\/li\u003e\n\u003cli\u003enumber of exterior walls;\u003c\/li\u003e\n\u003cli\u003eproperty floor;\u003c\/li\u003e\n\u003cli\u003eopen-plan or partitioned layout;\u003c\/li\u003e\n\u003cli\u003epresence of an open staircase;\u003c\/li\u003e\n\u003cli\u003eheating needs in extremely cold weather;\u003c\/li\u003e\n\u003cli\u003eair-conditioning needs during periods of high humidity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAn \u003cstrong\u003eoversized 24,000 BTU unit\u003c\/strong\u003e can quickly reach the requested temperature and reduce its operating cycles under certain conditions. Conversely, an undersized unit may run continuously without maintaining the temperature during winter peaks.\u003c\/p\u003e\n\u003cp\u003eThe right choice therefore depends on the building’s actual load, not simply on dividing the square footage by an approximate factor.\u003c\/p\u003e\n\u003ch3\u003eInteresting modulation for less demanding periods\u003c\/h3\u003e\n\u003cp\u003eThe Senville technical specifications indicate a cooling range of \u003cstrong\u003e7,300 to 26,000 BTU\/h\u003c\/strong\u003e and a heating range of \u003cstrong\u003e7,300 to 25,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation capacity is important in spring and fall.\u003c\/p\u003e\n\u003cp\u003eAn inverter heat pump does not have to operate constantly at 24,000 BTU. It can reduce its output when demand decreases, which generally allows for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emore stable indoor temperatures;\u003c\/li\u003e\n\u003cli\u003efewer abrupt starts and stops;\u003c\/li\u003e\n\u003cli\u003ebetter comfort control;\u003c\/li\u003e\n\u003cli\u003econsumption better suited to the load;\u003c\/li\u003e\n\u003cli\u003equieter operation at low output.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eA substantial indoor unit: the location must be planned\u003c\/h3\u003e\n\u003cp\u003eA 24,000 BTU heat pump has a significantly larger indoor head than many 9,000- or 12,000-BTU units.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENE-24EL-IHH\u003c\/strong\u003e measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e46.85 in wide × 11.20 in deep × 14.59 in high.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt weighs approximately \u003cstrong\u003e64.2 lb\u003c\/strong\u003e. The outdoor unit measures \u003cstrong\u003e37.24 × 16.14 × 31.89 in\u003c\/strong\u003e and weighs approximately \u003cstrong\u003e130.29 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBefore installation, we therefore physically verify the available wall width.\u003c\/p\u003e\n\u003cp\u003eThis is particularly important in condos and homes in \u003cstrong\u003eMontréal\u003c\/strong\u003e, where possible locations are often limited by windows, trim, kitchen cabinets, or facade constraints.\u003c\/p\u003e\n\u003ch3\u003eUp to 912 CFM indoors\u003c\/h3\u003e\n\u003cp\u003eAccording to the manufacturer’s technical table, the indoor airflow reaches approximately \u003cstrong\u003e912.3 CFM in Turbo mode\u003c\/strong\u003e, with other levels of 618, 412, and 317.8 CFM. Indoor sound levels drop to approximately \u003cstrong\u003e30 dB(A)\u003c\/strong\u003e and reach 56 dB(A) at the highest setting. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis high airflow is consistent with the purpose of a 24,000 BTU wall-mounted heat pump: projecting air far enough into a large room or open-concept area.\u003c\/p\u003e\n\u003cp\u003eThe louvers can be adjusted vertically and horizontally, which helps direct the airflow according to the room’s layout.\u003c\/p\u003e\n\u003cp\u003ePositioning nevertheless remains essential. A high-capacity heat pump installed in a narrow corridor or directly facing a nearby wall will not be able to distribute its airflow as efficiently as a unit placed in an open area.\u003c\/p\u003e\n\u003ch3\u003e62 dB(A) outdoors: placement also matters for the neighbors\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit is rated at \u003cstrong\u003e62 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a densely populated residential area of \u003cstrong\u003eMontréal, Laval, or Longueuil\u003c\/strong\u003e, we take into account the distance from:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ebedroom windows;\u003c\/li\u003e\n\u003cli\u003ethe balcony;\u003c\/li\u003e\n\u003cli\u003ethe patio;\u003c\/li\u003e\n\u003cli\u003eneighboring properties;\u003c\/li\u003e\n\u003cli\u003ewalls likely to reflect sound.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA mechanical installation is therefore not simply a matter of finding a place where the unit “fits.” Future access for maintenance, the clearance required for airflow, and snow accumulation during the winter must also be taken into account.\u003c\/p\u003e\n\u003ch3\u003eWiFi, Alexa, and remote control\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWiFi is included\u003c\/strong\u003e, and the ELITE series allows app control as well as integration with \u003cstrong\u003eAmazon Alexa\u003c\/strong\u003e. The manufacturer indicates that schedules, temperatures, and certain settings can be adjusted remotely. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a primary residence, this notably makes it possible to lower the setpoint during an absence and gradually bring the home back to temperature before returning.\u003c\/p\u003e\n\u003cp\u003eIn a condo, office, or secondary residence, remote control can also make it possible to confirm that the system is still operating without being physically on-site.\u003c\/p\u003e\n\u003cp\u003eThe heat pump also incorporates \u003cstrong\u003ediagnostic and leak-detection\u003c\/strong\u003e functions announced by Senville. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eR-454B: a new generation of refrigerant\u003c\/h3\u003e\n\u003cp\u003eThis version of the SENVILLE ELITE operates with \u003cstrong\u003eR-454B\u003c\/strong\u003e. The charge specified in the technical documentation is \u003cstrong\u003e63.49 oz\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe piping specified on the AirGreen data sheet is \u003cstrong\u003e3\/8 in – 5\/8 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOne detail nevertheless deserves particular attention: the Senville documentation provided is not perfectly consistent regarding the factory refrigerant charge length.\u003c\/p\u003e\n\u003cp\u003eOne section indicates that the system is precharged for an installation of up to \u003cstrong\u003e25 ft\u003c\/strong\u003e, and that a 50 ft line requires an additional charge. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e The technical table, for its part, mentions a \u003cstrong\u003e30 ft\u003c\/strong\u003e precharge. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, this kind of documentation discrepancy is precisely why we do not determine a refrigerant charge solely from a commercial product page. During installation, you must follow the instructions corresponding to the \u003cstrong\u003eexact model, nameplate, and applicable installation manual\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAn incorrect charge can reduce performance, increase consumption, and impair compressor operation.\u003c\/p\u003e\n\u003ch3\u003ePower supply: 208\/230 V and maximum protection of 25 A\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE ELITE 24,000 BTU operates on a \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e power supply. The published voltage range is 187 to 253 V.\u003c\/p\u003e\n\u003cp\u003eThe documentation states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 24 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003emaximum protection: 25 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003especified interconnection cable: 14\/4 AWG\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt is important not to confuse the interconnection cable between the units with the power wiring for the electrical circuit. The final circuit sizing must comply with the unit’s specifications, the site configuration, and the applicable electrical requirements.\u003c\/p\u003e\n\u003ch2\u003eAirGreen installation: turning a good technical specification into a properly functioning system\u003c\/h2\u003e\n\u003cp\u003eThe certified performance of a heat pump can only be reproduced in a home if the \u003cstrong\u003eHVAC installation\u003c\/strong\u003e is carried out correctly.\u003c\/p\u003e\n\u003cp\u003eThe Senville documentation also specifies that a \u003cstrong\u003eprofessional installation is required to maintain warranty coverage and ensure the expected performance\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eOur first check: where should the indoor head be installed?\u003c\/h3\u003e\n\u003cp\u003eIn a large open-concept area, we generally look for a location capable of distributing air along the greatest possible length of the room.\u003c\/p\u003e\n\u003cp\u003eA typical example on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e is a ground floor combining the living room, dining room, and kitchen. A wall-mounted heat pump installed at one end of the space can sometimes cover this area very effectively, provided that the airflow is not blocked by a wall, a dropped ceiling, or a large cabinet.\u003c\/p\u003e\n\u003cp\u003eIn a more compartmentalized home, a single 24,000 BTU unit may have more difficulty delivering heat to bedrooms whose doors remain closed.\u003c\/p\u003e\n\u003cp\u003eAdding BTUs does not fix an airflow problem.\u003c\/p\u003e\n\u003ch3\u003eThe second critical point: condensate drainage\u003c\/h3\u003e\n\u003cp\u003eIn air conditioning, the moisture extracted from the air must be drained properly.\u003c\/p\u003e\n\u003cp\u003eWhen the configuration allows, we favor gravity drainage with an appropriate slope. An improperly installed drain can cause:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewater leaking indoors;\u003c\/li\u003e\n\u003cli\u003eodors;\u003c\/li\u003e\n\u003cli\u003edirt buildup;\u003c\/li\u003e\n\u003cli\u003ebackflow;\u003c\/li\u003e\n\u003cli\u003edamage around the wall or floor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe routing of the refrigerant lines, cable, and drain must therefore be planned before drilling the wall.\u003c\/p\u003e\n\u003ch3\u003eThe outdoor unit must be prepared for a real winter\u003c\/h3\u003e\n\u003cp\u003eIn \u003cstrong\u003eLaval, Montreal, Longueuil, the North Shore, and the South Shore\u003c\/strong\u003e, a heat pump installed too close to the ground can quickly become surrounded by snow.\u003c\/p\u003e\n\u003cp\u003eDuring heating, the unit also periodically performs defrost cycles. The water produced must be able to drain away and freeze without blocking the underside of the unit.\u003c\/p\u003e\n\u003cp\u003eWe therefore plan the outdoor installation by considering:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eheight above the ground;\u003c\/li\u003e\n\u003cli\u003eanticipated snow accumulation;\u003c\/li\u003e\n\u003cli\u003edrainage of defrost water;\u003c\/li\u003e\n\u003cli\u003eair circulation;\u003c\/li\u003e\n\u003cli\u003evibrations;\u003c\/li\u003e\n\u003cli\u003eaccess for maintenance;\u003c\/li\u003e\n\u003cli\u003edistance from windows and occupied areas.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEvacuation, connections, and commissioning\u003c\/h3\u003e\n\u003cp\u003eA professional installation includes much more than mounting the two units.\u003c\/p\u003e\n\u003cp\u003eThe quality of the refrigerant connections, tightness, circuit evacuation, and final validation have a direct impact on long-term reliability.\u003c\/p\u003e\n\u003cp\u003eDuring commissioning, we also check heating and cooling operation, drainage, controls, louver movement, and communication between the units.\u003c\/p\u003e\n\u003ch3\u003eThe mistake to avoid: believing that -30°C means 24,000 BTU at -30°C\u003c\/h3\u003e\n\u003cp\u003eThis is probably the most important information to remember about this \u003cstrong\u003eSENVILLE ELITE 24,000 BTU heat pump\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe rated capacity is 24,000 BTU, but the AirGreen product sheet indicates approximately \u003cstrong\u003e10,200 BTU maximum at -30°C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a home with high heat losses, this difference must be factored into the choice of backup system.\u003c\/p\u003e\n\u003cp\u003eA homeowner replacing electric baseboard heaters therefore does not necessarily need to remove them simply because their new heat pump is advertised as operating at -30°C.\u003c\/p\u003e\n\u003cp\u003eThe heat pump can provide a very large portion of the annual heating while retaining supplementary heating for the coldest days.\u003c\/p\u003e\n\u003ch3\u003eLogisVert: Why capacity at -8°C is particularly important\u003c\/h3\u003e\n\u003cp\u003eThe published capacity at \u003cstrong\u003e-8°C is 17,100 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis value is particularly relevant in Quebec because Hydro-Québec currently calculates LogisVert financial assistance for an \u003cstrong\u003eENERGY STAR – cold climate\u003c\/strong\u003e heat pump at \u003cstrong\u003e$120 per 1,000 BTU\/h of heating capacity at -8°C\u003c\/strong\u003e when all program conditions are met. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe calculation for this combination is therefore:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e17.1 × $120 = $2,052\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is the amount of \u003cstrong\u003e2 052 $\u003c\/strong\u003e indicated on the AirGreen product sheet.\u003c\/p\u003e\n\u003cp\u003eHydro-Québec also specifies that heat pumps installed since November 26, 2025 must be \u003cstrong\u003eENERGY STAR certified\u003c\/strong\u003e to be eligible. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor certain \u003cstrong\u003eeligible multi-unit residential buildings\u003c\/strong\u003e, an additional bonus may increase the assistance to \u003cstrong\u003e$220 per 1,000 BTU\/h at -8 °C\u003c\/strong\u003e when all specific criteria are met. In this case, 17.1 × $220 would theoretically give \u003cstrong\u003e$3,762\u003c\/strong\u003e for this system. This bonus does not automatically apply to every duplex, triplex, or building; eligibility must be verified according to the program rules at the time of installation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWarranty: 10 years compressor and 10 years parts\u003c\/h3\u003e\n\u003cp\u003eSenville announces a warranty of \u003cstrong\u003e10 years on the compressor and 10 years on parts\u003c\/strong\u003e for this series. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAirGreen’s product sheet therefore presents the standard warranty as follows:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years compressor – 10 years parts – 0 years labour\u003c\/strong\u003e, with the possibility of additional coverage.\u003c\/p\u003e\n\u003cp\u003eIt is important to distinguish these three elements. A warranty on one part does not necessarily mean that all diagnostic, travel, and labour costs are included for the same period.\u003c\/p\u003e\n\u003ch3\u003eWho do we primarily recommend this SENVILLE ELITE 24,000 BTU to\u003c\/h3\u003e\n\u003cp\u003eThis heat pump deserves particular attention for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea \u003cstrong\u003elarge open-concept area\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea main floor with a connected living room, dining room, and kitchen;\u003c\/li\u003e\n\u003cli\u003esome large lofts and condos;\u003c\/li\u003e\n\u003cli\u003eopen commercial spaces;\u003c\/li\u003e\n\u003cli\u003ehomeowners looking for a \u003cstrong\u003ecold-climate wall-mounted heat pump\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eprojects where \u003cstrong\u003eWiFi\u003c\/strong\u003e and remote control are useful;\u003c\/li\u003e\n\u003cli\u003ecustomers who want a \u003cstrong\u003ecold-climate ENERGY STAR\u003c\/strong\u003e combination eligible for LogisVert when the other conditions are met.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is less suitable when a homeowner tries to heat several closed-off bedrooms simply by increasing the capacity of the unit installed in the living room.\u003c\/p\u003e\n\u003cp\u003eIn these situations, we may recommend a different HVAC configuration based on the building’s layout.\u003c\/p\u003e\n\u003ch3\u003eWhy entrust the selection and installation to AirGreen\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we work with very different properties in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, the South Shore, and Montérégie\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOur role is not limited to supplying a heat pump. We must confirm that the selected capacity matches the building, that the indoor unit is properly positioned, that the outdoor unit is suited to winter conditions, and that the refrigeration, electrical, and drainage work is properly planned.\u003c\/p\u003e\n\u003cp\u003eOn a model such as the \u003cstrong\u003eSENVILLE ELITE SENE-24EL\u003c\/strong\u003e, this also means checking the technical specifications rather than relying solely on the prominent commercial claims of 24,000 BTU capacity or operation at -30 °C.\u003c\/p\u003e\n\u003cp\u003eThis attention to detail is what makes it possible to achieve the expected comfort after installation.\u003c\/p\u003e\n\u003ch3\u003eMaintenance to preserve airflow and performance\u003c\/h3\u003e\n\u003cp\u003eEven a high-efficiency heat pump will lose efficiency if the indoor heat exchanger is obstructed or if the outdoor airflow is blocked.\u003c\/p\u003e\n\u003cp\u003eWe particularly recommend monitoring:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe condition of the filters;\u003c\/li\u003e\n\u003cli\u003ethe cleanliness of the indoor evaporator;\u003c\/li\u003e\n\u003cli\u003ethe blower wheel;\u003c\/li\u003e\n\u003cli\u003ethe condensate drain;\u003c\/li\u003e\n\u003cli\u003ethe outdoor heat exchanger;\u003c\/li\u003e\n\u003cli\u003ethe clearance around the outdoor unit;\u003c\/li\u003e\n\u003cli\u003ethe accumulation of snow and ice in winter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAn indoor unit capable of moving more than \u003cstrong\u003e900 CFM\u003c\/strong\u003e at maximum speed must be able to breathe freely to maintain its airflow.\u003c\/p\u003e\n\u003cp\u003eMaintenance becomes particularly important in homes with pets, dusty environments, and installations operating almost continuously in heating mode.\u003c\/p\u003e\n\u003ch3\u003eA properly selected SENVILLE ELITE 24,000 BTU can replace a large portion of annual electric heating.\u003c\/h3\u003e\n\u003cp\u003eWith its \u003cstrong\u003eENERGY STAR Cold Climate\u003c\/strong\u003e certification, AHRI combination \u003cstrong\u003e218069801\u003c\/strong\u003e, operation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, \u003cstrong\u003eR-454B\u003c\/strong\u003e refrigerant, WiFi control, and 24,000 BTU capacity, this heat pump has very interesting features for the Quebec market.\u003c\/p\u003e\n\u003cp\u003eIts true value becomes apparent, however, when the figures are analyzed in context: \u003cstrong\u003e17,100 BTU at -8 °C, 20,000 BTU at -15 °C, and approximately 10,200 BTU maximum at -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThese values make it possible to design a heating system much more intelligently than by relying solely on the nominal capacity listed on the box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen to obtain a quote and have the sizing of the SENVILLE ELITE 24,000 BTU verified for your property in Montreal, Laval, Longueuil, the North Shore, or the South Shore. We can confirm the placement, required capacity, installation conditions, and the LogisVert financial assistance applicable to your project.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119949459748,"sku":"SENE-24EL-OH","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_MURALE_SENVILLE_ELITE_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_b9663445-59e2-4ccb-98b0-c498acab17c7.png?v=1789051021"},{"product_id":"thermopompe-centrale-senville-r454b-2-tonnes-24000-btu","title":"SENVILLE R454B Central Heat Pump | 2 Tons - 24000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 24,000 BTU central heat pump designed for Quebec heating, not just air conditioning\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eWhen a homeowner is looking for a \u003cstrong\u003e2-ton central heat pump\u003c\/strong\u003e for a home in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, or the South Shore\u003c\/strong\u003e, the nominal capacity of 24,000 BTUs is only a starting point. What really matters is how the unit modulates its output, how much heat it can still produce when the outdoor temperature drops, its seasonal efficiency, its sound level, and its compatibility with the existing ductwork.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENDC-24HF\u003c\/strong\u003e is a ducted central system combining air conditioning and heat-pump heating. The Senville documentation provided for this model identifies it as a \u003cstrong\u003e24,000 BTU\u003c\/strong\u003e central system from the SENDC-24HF series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor this configuration, the model numbers used are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENDC-24HF-OG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: SENDC-24HF-IG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735326\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR reference: 3649595\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated cooling capacity: 24,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 18.3\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 11.7\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2: 10.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAdvertised minimum heating temperature: -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Senville technical sheet also confirms a \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e power supply, an SEER2 of 18.3, and an EER2 of 11.7. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eModulating capacity matters more than a simple “24,000 BTU”\u003c\/h3\u003e\n\u003cp\u003eAn inverter heat pump does not operate constantly at maximum power. That is precisely one of its advantages.\u003c\/p\u003e\n\u003cp\u003eFor the SENDC-24HF, the published operating range is:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e7,200 to 27,000 BTU\/h in cooling mode\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e7,100 to 30,000 BTU\/h in heating mode\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese values are particularly interesting for a central residential installation. Instead of operating solely in on-off mode at full capacity, the system can adapt its output to the building’s actual needs. The brochure explicitly mentions the use of \u003cstrong\u003einverter technology\u003c\/strong\u003e, designed to adjust energy consumption and maintain a more stable indoor temperature. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation becomes important during the mild days of spring and fall. A house that needs only 8,000 or 10,000 BTUs of heating at a given time has no reason to continuously receive 24,000 or 30,000 BTUs followed by a complete shutdown.\u003c\/p\u003e\n\u003cp\u003eModulating operation can help:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emaintain a more constant temperature;\u003c\/li\u003e\n\u003cli\u003ereduce perceived variations between cycles;\u003c\/li\u003e\n\u003cli\u003eimprove comfort in different rooms;\u003c\/li\u003e\n\u003cli\u003elimit repeated starts;\u003c\/li\u003e\n\u003cli\u003emake better use of long periods of operation at reduced capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat performance really delivers when the temperature drops\u003c\/h3\u003e\n\u003cp\u003eFor the Greater Montreal climate, we always look beyond the nominal capacity.\u003c\/p\u003e\n\u003cp\u003eAccording to the data provided for this configuration, the SENDC-24HF produces approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAt -8 °C:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eheating capacity: \u003cstrong\u003e20,800 BTU\/h\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCOP: \u003cstrong\u003e2,42\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAt -15 °C:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eheating capacity: \u003cstrong\u003e21,600 BTU\/h\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAt the indicated maximum operating outdoor temperature, namely -30 °C:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ecapacity: \u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCOP: \u003cstrong\u003e1,43\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis information is essential when comparing several \u003cstrong\u003ecentral heat pumps in Montreal\u003c\/strong\u003e. Two models both bearing the “24,000 BTU” label can behave very differently at -8 °C, -15 °C, or -25 °C.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-30 °C\u003c\/strong\u003e, the fact that the unit can still operate does not necessarily mean that it can cover all of a home’s heat losses on its own. With a stated capacity of \u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e at this temperature, sizing the electric backup heating and analyzing heat losses become particularly important.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, this is exactly why we do not select a central heat pump based solely on a home’s floor area.\u003c\/p\u003e\n\u003ch3\u003eCOP 2.42 at -8 °C: how to interpret this value\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003eCOP of 2.42\u003c\/strong\u003e means that under the test condition in question, the heat pump produces approximately 2.42 units of thermal energy for every unit of electrical energy used by the compressor.\u003c\/p\u003e\n\u003cp\u003eThis figure helps explain why a heat pump can be an attractive solution compared with electric resistance heating used on its own.\u003c\/p\u003e\n\u003cp\u003eHowever, COP is not fixed.\u003c\/p\u003e\n\u003cp\u003eIt varies in particular according to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eoutdoor temperature;\u003c\/li\u003e\n\u003cli\u003esetpoint temperature;\u003c\/li\u003e\n\u003cli\u003ethe building’s actual load;\u003c\/li\u003e\n\u003cli\u003ecompressor speed;\u003c\/li\u003e\n\u003cli\u003eairflow;\u003c\/li\u003e\n\u003cli\u003edefrost cycles;\u003c\/li\u003e\n\u003cli\u003efilter condition;\u003c\/li\u003e\n\u003cli\u003ecoil cleanliness;\u003c\/li\u003e\n\u003cli\u003eductwork balancing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe brochure also provides a \u003cstrong\u003enominal COP of 3.33 W\/W\u003c\/strong\u003e, which corresponds to a different test condition and therefore should not be confused with the COP of 2.42 provided at -8 °C. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eSEER2 18.3, EER2 11.7, and HSPF2 10.0\u003c\/h3\u003e\n\u003cp\u003eFor homeowners comparing several models, three ratings deserve particular attention.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSEER2 of 18.3\u003c\/strong\u003e indicates the heat pump’s seasonal cooling efficiency.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eEER2 of 11.7\u003c\/strong\u003e measures its efficiency under a defined operating condition and allows for more targeted comparisons between units.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eHSPF2 of 10.0\u003c\/strong\u003e provided in the product data reflects its seasonal heating performance according to the corresponding calculation region. Senville’s documentation also indicates \u003cstrong\u003eHSPF2-4: 10\u003c\/strong\u003e and \u003cstrong\u003eHSPF2-5: 8\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese indicators are useful, but they never replace proper sizing. A highly efficient heat pump installed on an overly restrictive duct system may deliver a much less satisfactory result than its nominal data suggests.\u003c\/p\u003e\n\u003ch3\u003eR-454B: an important element of this new generation\u003c\/h3\u003e\n\u003cp\u003eThe SENDC-24HF uses \u003cstrong\u003eR-454B refrigerant\u003c\/strong\u003e, with a specified charge of \u003cstrong\u003e74.08 oz, or 2.1 kg\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the customer, the main point is that the installation must be carried out according to the methods and requirements specific to new equipment using this refrigerant.\u003c\/p\u003e\n\u003cp\u003eWhen replacing an old central heat pump, we therefore systematically check the existing configuration before assuming that the piping can simply be reused.\u003c\/p\u003e\n\u003cp\u003eFor this model, the supplied configuration specifies \u003cstrong\u003e3\/8 in – 3\/4 in piping\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis is a particularly important detail. During a central replacement, we regularly encounter homes where the old equipment uses different dimensions. We must not assume that existing piping is automatically suitable for the new unit simply because the old heat pump was also a “2-ton” model.\u003c\/p\u003e\n\u003ch3\u003e824 CFM: airflow must match the ductwork\u003c\/h3\u003e\n\u003cp\u003eThe SENDC-24HF-IG indoor unit delivers up to \u003cstrong\u003e824 CFM\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe documentation specifies three airflow rates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e824 CFM at high speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e759 CFM at medium speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e695 CFM at low speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt also indicates indoor sound levels of \u003cstrong\u003e44 \/ 42 \/ 28 dB\u003c\/strong\u003e, depending on the selected speed. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe figure of 824 CFM is consistent with what we typically look for around a 2-ton central installation, but the airflow available at the unit is not the only factor.\u003c\/p\u003e\n\u003cp\u003eThe system must also be capable of carrying that air.\u003c\/p\u003e\n\u003ch3\u003eWhy we inspect the ductwork before replacing a heat pump\u003c\/h3\u003e\n\u003cp\u003eLet's consider a scenario we regularly encounter when replacing central systems in Greater Montreal.\u003c\/p\u003e\n\u003cp\u003eA home has an old 2-ton heat pump. The owner simply wants to replace the outdoor unit and indoor unit with a new central heat pump of the same capacity.\u003c\/p\u003e\n\u003cp\u003eOn paper, this seems simple.\u003c\/p\u003e\n\u003cp\u003eOn site, however, we may find:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ean undersized return-air duct;\u003c\/li\u003e\n\u003cli\u003eseveral compressed flexible ducts;\u003c\/li\u003e\n\u003cli\u003ea highly restrictive filter;\u003c\/li\u003e\n\u003cli\u003epartially closed registers;\u003c\/li\u003e\n\u003cli\u003ean old, poorly matched coil;\u003c\/li\u003e\n\u003cli\u003einsufficient airflow to the second floor;\u003c\/li\u003e\n\u003cli\u003eexcessive static pressure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInstalling a modern heat pump without correcting these issues would amount to asking the new equipment to operate under the same poor conditions as the old one.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we prefer to identify these limitations before installation.\u003c\/p\u003e\n\u003ch3\u003eIndoor unit: dimensions to check before ordering\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e21.02 in wide × 17.52 in deep × 45.00 in high.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIts net weight is approximately \u003cstrong\u003e46.4 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese dimensions are important when the unit must be installed:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ein a basement with a low ceiling;\u003c\/li\u003e\n\u003cli\u003ein a tight mechanical space;\u003c\/li\u003e\n\u003cli\u003ein a closet;\u003c\/li\u003e\n\u003cli\u003enear a water heater;\u003c\/li\u003e\n\u003cli\u003eunder an existing duct network;\u003c\/li\u003e\n\u003cli\u003ein a location where service clearance is limited.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe must retain sufficient space for future maintenance. An installation that fits to the nearest centimeter may seem acceptable on the day of the work, but can become problematic when a technician needs to access the coil, drain, or an internal component a few years later.\u003c\/p\u003e\n\u003ch3\u003eCompact outdoor unit, but its location remains strategic\u003c\/h3\u003e\n\u003cp\u003eThe SENDC-24HF-OG measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e35.04 in × 13.46 in × 26.50 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e102.29 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIts stated outdoor sound level is \u003cstrong\u003e60 dB\u003c\/strong\u003e, with a maximum outdoor airflow of \u003cstrong\u003e3,000 CFM\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIts location must account for several typical constraints of properties in \u003cstrong\u003eMontreal, Laval, Longueuil, and Montérégie\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWe examine, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eclearance around the unit;\u003c\/li\u003e\n\u003cli\u003epossible snow accumulation;\u003c\/li\u003e\n\u003cli\u003ewater drainage during defrost cycles;\u003c\/li\u003e\n\u003cli\u003eproximity to a window;\u003c\/li\u003e\n\u003cli\u003epedestrian walkways;\u003c\/li\u003e\n\u003cli\u003ethe distance from neighbors;\u003c\/li\u003e\n\u003cli\u003ethe piping length;\u003c\/li\u003e\n\u003cli\u003eaccessibility for maintenance;\u003c\/li\u003e\n\u003cli\u003ethe stability of the base.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA heat pump capable of operating at low temperatures must also remain sufficiently clear during the winter. Installing the unit too close to the ground in an area where snow accumulates can seriously reduce its operating efficiency.\u003c\/p\u003e\n\u003ch2\u003eInstallation, sizing, and selection of a SENVILLE SENDC-24HF with AirGreen\u003c\/h2\u003e\n\u003ch3\u003e24,000 BTU is not automatically the right choice for every house\u003c\/h3\u003e\n\u003cp\u003eA rule based solely on square footage can lead to improper sizing.\u003c\/p\u003e\n\u003cp\u003eTwo 1,500-square-foot houses can have completely different needs depending on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe year of construction;\u003c\/li\u003e\n\u003cli\u003ethe insulation level;\u003c\/li\u003e\n\u003cli\u003ethe number of windows;\u003c\/li\u003e\n\u003cli\u003eorientation;\u003c\/li\u003e\n\u003cli\u003eair infiltration;\u003c\/li\u003e\n\u003cli\u003ethe basement area;\u003c\/li\u003e\n\u003cli\u003ethe number of floors;\u003c\/li\u003e\n\u003cli\u003ethe type of ductwork;\u003c\/li\u003e\n\u003cli\u003ethe desired indoor temperature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA very well-insulated house could be oversized with 24,000 BTU, while another property of similar size with significant heat loss could require more capacity or greater auxiliary heating.\u003c\/p\u003e\n\u003cp\u003eThis is especially true when considering capacity at very low temperatures.\u003c\/p\u003e\n\u003ch3\u003eAuxiliary heating: why planning for 5 kW or 10 kW can be worthwhile\u003c\/h3\u003e\n\u003cp\u003eThe SENDC-24HF commercial documentation presents \u003cstrong\u003e5 kW or 10 kW\u003c\/strong\u003e auxiliary heating options. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eElectric auxiliary heat can serve several functions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003esupplement the heat pump during periods of extreme cold;\u003c\/li\u003e\n\u003cli\u003ehelp when the heating demand exceeds the available capacity;\u003c\/li\u003e\n\u003cli\u003eoperate according to the thermostat and system configuration;\u003c\/li\u003e\n\u003cli\u003eprovide support during certain operating sequences.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe choice between \u003cstrong\u003eno element, 5 kW, and 10 kW\u003c\/strong\u003e must not be made at random. In particular, the electrical panel capacity must be verified and the building’s requirements calculated.\u003c\/p\u003e\n\u003ch3\u003eOutdoor unit electrical requirements\u003c\/h3\u003e\n\u003cp\u003eFor the outdoor unit, the provided data indicate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e208\/230 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1 phase\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 19 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003emaximum protection: 20 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Senville data sheet confirms a minimum circuit ampacity of \u003cstrong\u003e19 A\u003c\/strong\u003e and a maximum fuse of \u003cstrong\u003e20 A\u003c\/strong\u003e for the outdoor unit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe circuit rating, disconnect switch, wiring, and requirements related to auxiliary heating must be verified in the actual installation context.\u003c\/p\u003e\n\u003ch3\u003eA common mistake: replacing the equipment without analyzing the entire system\u003c\/h3\u003e\n\u003cp\u003eThe compressor often receives all the attention because it is the most visible and expensive component. However, many comfort problems are instead caused by air distribution.\u003c\/p\u003e\n\u003cp\u003eFor example, when a customer tells us:\u003c\/p\u003e\n\u003cp\u003e“The main floor is comfortable, but the bedrooms are always too hot in summer,”\u003c\/p\u003e\n\u003cp\u003echanging only the outdoor unit absolutely does not guarantee that the problem will disappear.\u003c\/p\u003e\n\u003cp\u003eWe must check:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe total airflow;\u003c\/li\u003e\n\u003cli\u003ethe static pressure;\u003c\/li\u003e\n\u003cli\u003ethe return size;\u003c\/li\u003e\n\u003cli\u003ethe airflow to the different zones;\u003c\/li\u003e\n\u003cli\u003ethe condition of the ducts;\u003c\/li\u003e\n\u003cli\u003ethe position of the registers;\u003c\/li\u003e\n\u003cli\u003ethe thermostat location.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis approach is what allows a \u003cstrong\u003ecentral heat pump installation\u003c\/strong\u003e to deliver the expected performance in the actual home, not just on a technical data sheet.\u003c\/p\u003e\n\u003ch3\u003eAir conditioning: up to 27,000 BTU of modulating capacity\u003c\/h3\u003e\n\u003cp\u003eThe nominal capacity is 24,000 BTU, but the published range reaches \u003cstrong\u003e27,000 BTU\/h in cooling\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis does not mean that the unit should be selected as a 27,000 BTU system. The nominal capacity and certification conditions remain the primary references for sizing.\u003c\/p\u003e\n\u003cp\u003eThis modulation reserve can nevertheless be useful during certain periods of high demand.\u003c\/p\u003e\n\u003cp\u003eIn Montréal, central air conditioning must also manage humidity. An oversized unit that reaches the setpoint too quickly may run in cycles that are too short and remove less humidity than a properly sized system operating for longer periods.\u003c\/p\u003e\n\u003ch3\u003eIndoor sound level: only up to 28 dB at low speed\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit's sound level is listed as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e28 dB at low speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e42 dB at medium speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e44 dB at high speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a central system installed near a living area, this factor may be important. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, the noise produced by the appliance must be distinguished from aerodynamic noise coming from the ducts.\u003c\/p\u003e\n\u003cp\u003eA return grille that is too small or an air velocity that is too high in a duct can create a whistling sound even with a relatively quiet indoor unit.\u003c\/p\u003e\n\u003cp\u003eThat is why we consider the entire system when carrying out an HVAC installation.\u003c\/p\u003e\n\u003ch3\u003eOptional Wi-Fi\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen configuration for this model indicates \u003cstrong\u003eoptional Wi-Fi\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor many customers, this is not a primary selection criterion, but this feature can be useful for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eadjust the temperature remotely;\u003c\/li\u003e\n\u003cli\u003echange a schedule;\u003c\/li\u003e\n\u003cli\u003emonitor operation while away;\u003c\/li\u003e\n\u003cli\u003etake control of the system again before returning home.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe always verify the exact compatibility of the selected control with the proposed installation rather than assuming that an existing thermostat or module can be kept.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR and eligibility for financial assistance\u003c\/h3\u003e\n\u003cp\u003eThis heat pump is listed as \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e and \u003cstrong\u003ecold climate\u003c\/strong\u003e, with ENERGY STAR reference \u003cstrong\u003e3649595\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen data sheet also indicates a \u003cstrong\u003eprovincial rebate of up to $2,496\u003c\/strong\u003e for this configuration.\u003c\/p\u003e\n\u003cp\u003eFinal eligibility nevertheless depends on the program in effect, the property, the installed configuration, and the applicable criteria at the time of the project. We therefore verify the relevant requirements before presenting an amount as guaranteed.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, or the South Shore\u003c\/strong\u003e, this step can significantly change the net cost of replacing a central heat pump.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a point to confirm precisely when preparing the quote\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen data sheet provided for this configuration indicates a \u003cstrong\u003e10-10-0 manufacturer’s warranty\u003c\/strong\u003e, with the possibility of additional coverage.\u003c\/p\u003e\n\u003cp\u003eThe attached Senville brochure, for its part, mentions \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSince these two pieces of information are not identical, the applicable coverage must be confirmed based on the product actually sold, the registration conditions, and the manufacturer's terms at the time of purchase.\u003c\/p\u003e\n\u003cp\u003eWe prefer to clarify this point before installation rather than let a customer assume that a generic statement automatically corresponds to their exact warranty.\u003c\/p\u003e\n\u003ch3\u003eWho is this 2-ton central heat pump particularly suitable for?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e24,000 BTU SENVILLE SENDC-24HF R-454B\u003c\/strong\u003e can be an interesting option for a residence equipped with central ductwork when the load calculation confirms that a capacity of approximately two tons is appropriate.\u003c\/p\u003e\n\u003cp\u003eIt stands out in particular for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eits \u003cstrong\u003e18.3 SEER2\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eits inverter operation;\u003c\/li\u003e\n\u003cli\u003eits \u003cstrong\u003e10.0 HSPF2\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eits advertised heating capacity down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eits \u003cstrong\u003eR-454B\u003c\/strong\u003e refrigerant;\u003c\/li\u003e\n\u003cli\u003eits maximum indoor airflow of \u003cstrong\u003e824 CFM\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eits modulating capacity of up to \u003cstrong\u003e30,000 BTU\/h in heating\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eits central format, suited to homes already equipped with ductwork;\u003c\/li\u003e\n\u003cli\u003eits \u003cstrong\u003eENERGY STAR Cold Climate\u003c\/strong\u003e certification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Senville brochure also describes this model as an inverter central heat pump for year-round heating and cooling using R-454B. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy have AirGreen install the SENDC-24HF\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, our work does not simply involve connecting an outdoor unit to an indoor unit.\u003c\/p\u003e\n\u003cp\u003eBefore a \u003cstrong\u003ecentral heat pump installation in Montréal, Laval, Longueuil, the North Shore, or the South Shore\u003c\/strong\u003e, we examine the factors that determine the actual result:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003erequired capacity;\u003c\/li\u003e\n\u003cli\u003eductwork;\u003c\/li\u003e\n\u003cli\u003eairflow;\u003c\/li\u003e\n\u003cli\u003eelectrical supply;\u003c\/li\u003e\n\u003cli\u003erefrigerant piping;\u003c\/li\u003e\n\u003cli\u003edrainage;\u003c\/li\u003e\n\u003cli\u003eoutdoor unit location;\u003c\/li\u003e\n\u003cli\u003econtrol compatibility;\u003c\/li\u003e\n\u003cli\u003eauxiliary heating;\u003c\/li\u003e\n\u003cli\u003efuture accessibility for maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis analysis is particularly important when replacing an existing system. The \u003cstrong\u003e3\/8 in. – 3\/4 in.\u003c\/strong\u003e pipe sizes, the \u003cstrong\u003e824 CFM\u003c\/strong\u003e airflow, the maximum electrical protection of \u003cstrong\u003e20 A\u003c\/strong\u003e for the outdoor unit, and any need for an auxiliary heating element must all be incorporated into the project design.\u003c\/p\u003e\n\u003cp\u003eA good heat pump installed on an unsuitable infrastructure will deliver mediocre results. A properly sized and adjusted installation, on the other hand, makes it possible to take much better advantage of the features for which the equipment was designed.\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen quote for your SENVILLE central heat pump\u003c\/h3\u003e\n\u003cp\u003eAre you considering replacing an existing central heat pump or installing a \u003cstrong\u003e24,000 BTU SENVILLE SENDC-24HF\u003c\/strong\u003e?\u003c\/p\u003e\n\u003cp\u003eContact \u003cstrong\u003eAirGreen Climatisation \u0026amp; Chauffage\u003c\/strong\u003e. We can inspect your existing installation, ductwork, heating needs, electrical supply, available financial assistance, and the configuration best suited to your property.\u003c\/p\u003e\n\u003cp\u003eWe serve \u003cstrong\u003eMontréal, Laval, Longueuil, the North Shore, the South Shore, and the greater metropolitan area\u003c\/strong\u003e for the installation, replacement, and servicing of central HVAC systems.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119967449380,"sku":"SENDC-24HF-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/01_THERMOPOMPE_CENTRALE_SENVILLE_R454B_2_TONNES_24000BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789056253"},{"product_id":"thermopompe-centrale-senville-r454b-3-tonnes-36000-btu","title":"SENVILLE R454B Central Heat Pump | 3 Tons - 36000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 3-ton central heat pump designed to replace the old system without sacrificing comfort during Quebec's cold spells\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eWhen a homeowner already has a duct network, replacing an old central air conditioner or an aging heat pump must be evaluated differently from a wall-mounted project. The question is not simply whether to choose “3 tons because the old unit was 3 tons.” The heat load, available airflow, duct dimensions, electrical capacity, low-temperature heating requirements, and compatibility with the existing installation must all be verified.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e3-ton, 36,000 BTU SENVILLE SENDC-36HF R454B central heat pump\u003c\/strong\u003e is designed precisely for this type of project. The manufacturer's documentation identifies the system as the \u003cstrong\u003eSENDC-36HF\u003c\/strong\u003e, a 36,000 BTU central air conditioning and heat pump system. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we view this model as a particularly relevant solution for certain homes in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e where a duct network is already present and the owner wants to switch to a more modern inverter technology operating with \u003cstrong\u003eR-454B\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe combination listed on our AirGreen product sheet is:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENDC-36HF-OG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: SENDC-36HF-IG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNominal capacity: 3 tons \/ 36,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735328\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR®: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR® Cold Climate: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR ID: 3649597\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 17.4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 11.7\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-4: 10.3\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating down to -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWiFi: optional\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eVoltage: 220 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePiping: 3\/8 in – 3\/4 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 41 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 50 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum indoor airflow: 1,188 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e3 tons means 36,000 BTU, but the inverter completely changes how that capacity is used\u003c\/h3\u003e\n\u003cp\u003eOne ton of cooling corresponds to approximately 12,000 BTU\/h. A \u003cstrong\u003e3-ton\u003c\/strong\u003e unit therefore corresponds to a nominal capacity of approximately \u003cstrong\u003e36,000 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWith an inverter heat pump, however, this value is not a fixed capacity.\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure indicates a cooling range from \u003cstrong\u003e13,000 to 47,400 BTU\/h\u003c\/strong\u003e and a heating range from \u003cstrong\u003e11,000 to 57,200 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation is particularly useful in a central system.\u003c\/p\u003e\n\u003cp\u003eAt the beginning of a hot summer day, demand may be high. As the indoor temperature then approaches the setpoint, the compressor can reduce its speed instead of operating only in on-off cycles.\u003c\/p\u003e\n\u003cp\u003eIn heating mode, the principle is similar. A November day a few degrees above freezing does not impose the same load as a January night at -20 °C. The inverter allows the system to adjust its output more closely to the actual load.\u003c\/p\u003e\n\u003cp\u003eThis is something we examine carefully when \u003cstrong\u003ereplacing a central heat pump in Montreal or Laval\u003c\/strong\u003e, because the comfort provided by a central system depends greatly on the unit's ability to maintain a stable temperature without unnecessarily increasing the number of start-ups.\u003c\/p\u003e\n\u003ch3\u003eUp to 1,400 sq. ft. according to Senville: why we never size a system based on square footage alone\u003c\/h3\u003e\n\u003cp\u003eSenville presents this 36,000 BTU unit as suitable for spaces of up to approximately \u003cstrong\u003e1,400 sq. ft.\u003c\/strong\u003e, for residential or commercial applications. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis indication is useful for positioning the product, but it should never replace a load calculation.\u003c\/p\u003e\n\u003cp\u003eWe regularly see two homes of comparable size with very different requirements. A well-insulated property in \u003cstrong\u003eBoucherville\u003c\/strong\u003e with newer windows may require much less energy than an older building of the same size in \u003cstrong\u003eMontreal\u003c\/strong\u003e, even if both have a central system.\u003c\/p\u003e\n\u003cp\u003eWe must consider factors including insulation, air infiltration, windows, ceiling height, solar exposure, number of floors, basement heat loss, and ductwork configuration.\u003c\/p\u003e\n\u003cp\u003eThe presence of an old 36,000 BTU unit is not proof that 36,000 BTU is still the right capacity. Renovations, window replacements, or improved insulation may have changed the building's requirements.\u003c\/p\u003e\n\u003ch3\u003eThe performance at -8 °C, -15 °C, and -30 °C is more informative than the statement “operates at -30 °C”\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen data sheet provides three particularly interesting figures for our climate.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-8 °C\u003c\/strong\u003e, the listed capacity is \u003cstrong\u003e31,800 BTU\/h\u003c\/strong\u003e, with a COP of approximately \u003cstrong\u003e2.56\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-15 °C\u003c\/strong\u003e, the listed capacity reaches \u003cstrong\u003e39,000 BTU\/h\u003c\/strong\u003e, with a COP of approximately \u003cstrong\u003e1.9\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-30 °C\u003c\/strong\u003e, the listed maximum capacity is still \u003cstrong\u003e27,800 BTU\/h\u003c\/strong\u003e, with a COP of approximately \u003cstrong\u003e1.59\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer's documentation confirms that the system is designed to provide heating down to \u003cstrong\u003e-22 °F, or -30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese figures illustrate an important distinction we often explain to homeowners: \u003cstrong\u003ea heat pump that can operate at -30 °C does not necessarily retain its maximum capacity or its best efficiency at -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor this Senville unit, a maximum capacity of 27,800 BTU at -30 °C remains significant for a central heat pump in this category, but it must be compared with the home's actual heat loss.\u003c\/p\u003e\n\u003cp\u003eIf the property requires, for example, more heat than the heat pump can provide during an extreme cold spell, auxiliary heating will need to take over or operate in conjunction with it.\u003c\/p\u003e\n\u003ch3\u003eAuxiliary heating: an element to plan from the quotation stage\u003c\/h3\u003e\n\u003cp\u003eSenville documentation shows that the system can be configured with \u003cstrong\u003e10 kW, 15 kW, or 20 kW\u003c\/strong\u003e auxiliary heating elements. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis detail is particularly relevant in Quebec.\u003c\/p\u003e\n\u003cp\u003eAuxiliary electric heating should not be selected arbitrarily. Its capacity must match the building’s needs and the available electrical capacity.\u003c\/p\u003e\n\u003cp\u003eIn a home where the central heat pump replaces an old electric furnace, we therefore check all of the following simultaneously:\u003c\/p\u003e\n\u003cp\u003ethe heat pump’s capacity, the existing or planned supplemental heating, the electrical panel, available capacity, and the operating strategy during periods of extreme cold.\u003c\/p\u003e\n\u003cp\u003eSystematically installing the largest available component is not always the best decision. A larger component also requires greater electrical capacity.\u003c\/p\u003e\n\u003ch3\u003eSEER2 17.4, EER2 11.7, and HSPF2-4 10.3\u003c\/h3\u003e\n\u003cp\u003eThe official technical documentation lists a \u003cstrong\u003eSEER2 of 17.4\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 11.7\u003c\/strong\u003e, an \u003cstrong\u003eHSPF2-4 of 10.3\u003c\/strong\u003e, and a nominal COP of \u003cstrong\u003e3.36\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn some sales materials, we still see only the terms “SEER,” “EER,” or “HSPF.” For this combination, the brochure correctly uses the ratings \u003cstrong\u003eSEER2, EER2, and HSPF2\u003c\/strong\u003e, which correspond to current testing methods.\u003c\/p\u003e\n\u003cp\u003eFor homeowners, these values are mainly useful for comparing central systems in the same category.\u003c\/p\u003e\n\u003cp\u003eAn attractive SEER2 rating helps reduce the amount of electricity required for cooling during the summer season. HSPF2 is more representative of seasonal heating efficiency.\u003c\/p\u003e\n\u003cp\u003eIn the \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e climate, heating obviously plays a major role in the economic analysis of a central heat pump.\u003c\/p\u003e\n\u003ch3\u003e1,188 CFM: why the ductwork must be checked before installation\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit offers three airflow levels:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1,188 CFM at high speed, 1,082 CFM at medium speed, and 970 CFM at low speed\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese data are essential in a central-system project.\u003c\/p\u003e\n\u003cp\u003eA heat pump can deliver excellent performance on paper yet produce disappointing results if the ductwork is too restrictive, poorly balanced, or partially obstructed.\u003c\/p\u003e\n\u003cp\u003eIn our assessments at AirGreen, we pay attention to symptoms that may reveal a distribution problem:\u003c\/p\u003e\n\u003cp\u003ebedrooms receiving almost no air, an overly restrictive return grille, crushed ducts, one floor heating much less than the other, or excessive blowing noise at certain outlets.\u003c\/p\u003e\n\u003cp\u003eReplacing the equipment does not automatically correct these deficiencies.\u003c\/p\u003e\n\u003cp\u003eTo properly handle an airflow of up to \u003cstrong\u003e1,188 CFM\u003c\/strong\u003e, we must ensure that the existing installation allows the indoor unit to circulate air properly.\u003c\/p\u003e\n\u003ch3\u003eA 49-inch-high central indoor unit\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e21.02 in wide × 21.02 in deep × 49.02 in high\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e129.19 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e38.58 in × 16.34 in × 38.39 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith a stated weight of \u003cstrong\u003e227 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese dimensions must be verified before ordering the equipment.\u003c\/p\u003e\n\u003cp\u003eIn some mechanical rooms in older Montreal homes, the space between the wall, water heater, pipes, and ventilation system may be limited. Replacing an old furnace with a different indoor unit may require sheet-metal transitions, a plenum modification, or an adjustment to the return air.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we prefer to assess these constraints before installation rather than treat them as a surprise on the morning of the work.\u003c\/p\u003e\n\u003ch3\u003eIndoor sound level: 41 to 45 dB(A)\u003c\/h3\u003e\n\u003cp\u003eThe stated sound level of the indoor unit is:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e41 dB(A) at low speed, 43 dB(A) at medium speed, and 45 dB(A) at high speed\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a central system, these figures must be interpreted together with the duct system.\u003c\/p\u003e\n\u003cp\u003eThe noise perceived in the rooms depends as much on the unit’s operation as on the duct diameter, grilles, air speed, and proximity to the mechanical room.\u003c\/p\u003e\n\u003cp\u003eAn undersized duct system can produce more turbulence and noise, even when the equipment itself is operating normally.\u003c\/p\u003e\n\u003ch3\u003e64 dB(A) for the outdoor unit: location matters\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit is rated at \u003cstrong\u003e64 dB(A)\u003c\/strong\u003e and can move up to \u003cstrong\u003e4,500 CFM\u003c\/strong\u003e of air. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis detail deserves particular attention in neighborhoods where properties are close together.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit should not be installed solely where the refrigerant line route is easiest. We must also consider bedrooms, windows, neighbors, property lines, and applicable municipal regulations.\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure also contains a verified buyer review reporting an \u003cstrong\u003eannoying whistling sound coming from the outdoor unit\u003c\/strong\u003e, to the point that the neighbors complained about it. The total sample consists of only three reviews, and this comment does not establish that the model has a widespread problem, but it does serve as a reminder that the actual noise produced by an installation deserves to be taken seriously. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn the field, when an unusual noise appears after an installation, we do not automatically consider the sound level “normal.” An inspection may be necessary to distinguish normal aerodynamic noise from hissing, vibration, support resonance, or a problem requiring diagnosis.\u003c\/p\u003e\n\u003ch2\u003eSENVILLE SENDC-36HF installation: the technical details that determine long-term performance\u003c\/h2\u003e\n\u003ch3\u003e208\/230 V power supply, 41 A MCA, and 50 A maximum protection\u003c\/h3\u003e\n\u003cp\u003eSenville documentation indicates a power supply:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith an operating range of 187 to 253 V. The \u003cstrong\u003eMCA is 41 A\u003c\/strong\u003e, and the indicated maximum fuse or circuit breaker is \u003cstrong\u003e50 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is not a heat pump that can simply be added to an electrical panel without verification.\u003c\/p\u003e\n\u003cp\u003eDuring a \u003cstrong\u003ecentral heat pump installation in Laval, Montreal, or Longueuil\u003c\/strong\u003e, we must check the panel’s available capacity and consider the installation as a whole, especially when electric auxiliary heating is added.\u003c\/p\u003e\n\u003cp\u003eA 10, 15, or 20 kW heating element represents a significant additional electrical load.\u003c\/p\u003e\n\u003ch3\u003eR-454B: 165.79 oz and precharge for 25 feet\u003c\/h3\u003e\n\u003cp\u003eThe brochure indicates an \u003cstrong\u003eR-454B charge of 165.79 oz\u003c\/strong\u003e with a precharge intended for \u003cstrong\u003e25 feet of piping\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates piping of \u003cstrong\u003e3\/8 in – 3\/4 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eDuring a replacement, we must therefore inspect the existing piping very carefully.\u003c\/p\u003e\n\u003cp\u003eThe fact that a house already has two copper lines between the mechanical room and the outdoor unit does not mean they are automatically suitable for the new system.\u003c\/p\u003e\n\u003cp\u003eWe check their diameter, length, condition, accessibility, and compatibility with the requirements of the new equipment.\u003c\/p\u003e\n\u003cp\u003eThis is one of the points that can make a major difference in the cost and quality of a \u003cstrong\u003ecentral heat pump\u003c\/strong\u003e replacement.\u003c\/p\u003e\n\u003ch3\u003eWall-mounted thermostat and optional WiFi\u003c\/h3\u003e\n\u003cp\u003eThe brochure specifies that the control type is a \u003cstrong\u003ewall-mounted control\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates that \u003cstrong\u003eWiFi is available as an option\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis detail must be clarified when preparing the quote if the owner absolutely wants to control the heat pump with their phone.\u003c\/p\u003e\n\u003cp\u003eIn a central system, the choice of thermostat is also more important than it may seem. An inverter heat pump uses specific control logic, and we must ensure that the thermostat or control provided allows the system to operate as designed.\u003c\/p\u003e\n\u003ch3\u003eAdvertised provincial rebate: $3,816\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates a \u003cstrong\u003e$3,816 provincial rebate\u003c\/strong\u003e for this combination, associated in particular with:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSENDC-36HF-OG + SENDC-36HF-IG\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAHRI 215735328\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR® 3649597\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCold Climate: yes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor a homeowner comparing the price of a central heat pump with that of a basic central air conditioner, this financial assistance can significantly change the project's economics.\u003c\/p\u003e\n\u003cp\u003eHowever, we always recommend confirming the eligibility criteria and available amount at the time of quoting, since a rebate program may be changed.\u003c\/p\u003e\n\u003cp\u003eThe exact AHRI identification is particularly important: two commercially similar 36,000 BTU systems are not necessarily associated with the same certificate or the same amount.\u003c\/p\u003e\n\u003ch3\u003eA warranty that deserves verification before publication\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet provided indicates a warranty of:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years compressor – 10 years parts – 0 years labour\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith the possibility of additional warranty coverage.\u003c\/p\u003e\n\u003cp\u003eHowever, the attached manufacturer's brochure states \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville also mentions this 10-year compressor and 5-year parts coverage in the product description. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference must be confirmed before presenting the final warranty to the customer. There may be a specific warranty program associated with the distributor, registration, or AirGreen sales channel, but the brochure provided is not sufficient to confirm the 10-year parts coverage shown on the product sheet.\u003c\/p\u003e\n\u003cp\u003eFor us, this transparency is important: the warranty that actually applies must be clearly shown on the quote.\u003c\/p\u003e\n\u003ch3\u003eA typical replacement scenario we encounter\u003c\/h3\u003e\n\u003cp\u003eA representative project is a home equipped with an older central system that still provides cooling, but whose compressor is beginning to show signs of wear.\u003c\/p\u003e\n\u003cp\u003eThe homeowner is hesitating between reinstalling a basic central air conditioner and converting the system to a \u003cstrong\u003eCold Climate central heat pump\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWith the SENDC-36HF, several factors must therefore be verified before even discussing installation:\u003c\/p\u003e\n\u003cp\u003eCan the old system properly handle approximately 1,188 CFM? Can the electrical panel accommodate the outdoor unit and auxiliary heating? Are the existing refrigerant lines compatible? Does the mechanical room provide the required 49 inches of clearance? Do the home's heat losses allow the heat pump to cover a significant portion of the heating load even when the temperature drops below -15 °C?\u003c\/p\u003e\n\u003cp\u003eThese are the questions that distinguish a simple equipment replacement from a \u003cstrong\u003eproperly planned HVAC installation\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eThe mistakes we strive to avoid\u003c\/h3\u003e\n\u003ch4\u003eAutomatically replacing an old 3-ton unit with a new 3-ton unit\u003c\/h4\u003e\n\u003cp\u003eThe previous capacity is useful information, but it does not replace verifying the building’s current heating load.\u003c\/p\u003e\n\u003ch4\u003eIgnoring the ductwork system\u003c\/h4\u003e\n\u003cp\u003eA high-performance central unit cannot compensate for a ductwork system that does not distribute air properly.\u003c\/p\u003e\n\u003ch4\u003eLooking only at the minimum temperature of -30 °C\u003c\/h4\u003e\n\u003cp\u003eThe actual capacity at -30 °C is much more relevant. In this configuration, the AirGreen specifications indicate a \u003cstrong\u003emaximum of 27,800 BTU\/h at -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eNeglecting auxiliary heating\u003c\/h4\u003e\n\u003cp\u003eThe choice between 10, 15, or 20 kW must be incorporated into the building’s electrical and thermal analysis.\u003c\/p\u003e\n\u003ch4\u003eReusing the refrigerant lines without validation\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003e3\/8 in – 3\/4 in\u003c\/strong\u003e diameter, length, and condition of the copper lines must meet the needs of the new unit.\u003c\/p\u003e\n\u003ch4\u003eInstalling the outdoor unit near a bedroom or neighbour solely to shorten the lines\u003c\/h4\u003e\n\u003cp\u003eWith a stated sound level of \u003cstrong\u003e64 dB(A)\u003c\/strong\u003e, the location deserves serious consideration.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for a 3-ton SENVILLE central heat pump\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we approach a central installation as a complete system: the heat pump, indoor unit, ductwork, electrical system, thermostat, drainage, refrigerant lines, and supplemental heating must all work together.\u003c\/p\u003e\n\u003cp\u003eFor a project involving the \u003cstrong\u003eSENVILLE SENDC-36HF R454B 36,000 BTU\u003c\/strong\u003e, we can verify sizing, airflow through the existing ductwork, the condition of the ducts, the electrical panel, auxiliary heating, the \u003cstrong\u003e3\/8 in – 3\/4 in\u003c\/strong\u003e refrigerant line routing, the outdoor unit location, and eligibility for financial assistance programs.\u003c\/p\u003e\n\u003cp\u003eThis approach is relevant both for replacing a system in a \u003cstrong\u003eLaval\u003c\/strong\u003e bungalow and for a major renovation in \u003cstrong\u003eMontreal\u003c\/strong\u003e, a home in \u003cstrong\u003eLongueuil\u003c\/strong\u003e, a property on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, or a project on the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe SENVILLE SENDC-36HF has features that are well suited to Quebec: \u003cstrong\u003einverter technology, 36,000 nominal BTU, heating down to -30 °C, a stated maximum capacity of 27,800 BTU at that temperature, SEER2 of 17.4, Cold Climate certification, and R-454B refrigerant\u003c\/strong\u003e. However, the quality of the result will depend directly on proper sizing and integration with the building.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen for a quote on the 3-ton SENVILLE SENDC-36HF R454B central heat pump, to check compatibility with your ductwork and plan a complete HVAC installation in Montreal, Laval, Longueuil, the South Shore, or the North Shore.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119967514916,"sku":"SENDC-36HF-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/01_THERMOPOMPE_CENTRALE_SENVILLE_R454B_3_TONNES_36000BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789056260"},{"product_id":"thermopompe-centrale-senville-r454b-4-tonnes-48000-btu","title":"SENVILLE R454B Central Heat Pump | 4 Tons - 48000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 4-ton inverter central heat pump designed to replace a traditional system without sacrificing winter heating\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e4-ton SENVILLE SENDC-48HF central heat pump\u003c\/strong\u003e, with a nominal cooling capacity of \u003cstrong\u003e48,000 BTU\u003c\/strong\u003e, is intended for homeowners who want to preserve the even comfort of a ducted system while switching to inverter technology capable of modulating its output according to the building's actual demand.\u003c\/p\u003e\n\u003cp\u003eFor us at AirGreen, this is precisely where this type of system becomes interesting. In many homes in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/strong\u003e, the owner already has functional ductwork, but the old central air conditioner or fixed-speed heat pump is nearing the end of its service life. In this context, replacing the entire air distribution system would make no sense. The priority is instead to integrate new equipment capable of using the existing network efficiently.\u003c\/p\u003e\n\u003cp\u003eThe combination presented includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe \u003cstrong\u003eSENDC-48HF-OG\u003c\/strong\u003e outdoor unit;\u003c\/li\u003e\n\u003cli\u003ethe \u003cstrong\u003eSENDC-48HF-IG\u003c\/strong\u003e indoor unit;\u003c\/li\u003e\n\u003cli\u003ea nominal cooling capacity of \u003cstrong\u003e48,000 BTU\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea \u003cstrong\u003e208\/230 V single-phase\u003c\/strong\u003e system;\u003c\/li\u003e\n\u003cli\u003ean inverter-technology compressor;\u003c\/li\u003e\n\u003cli\u003ethe \u003cstrong\u003eR-454B\u003c\/strong\u003e refrigerant;\u003c\/li\u003e\n\u003cli\u003ea heating capacity rated down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea maximum indoor airflow of approximately \u003cstrong\u003e1,601 CFM\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ean \u003cstrong\u003eAHRI 215735329\u003c\/strong\u003e number.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn its documentation, Senville presents the SENDC-48HF as a 48,000 BTU central heat pump system designed to cool large spaces and maintain heating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e. The manufacturer refers to an application covering approximately \u003cstrong\u003e1,800 sq. ft.\u003c\/strong\u003e, while requiring professional installation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis area remains a general guideline. At AirGreen, we never size a \u003cstrong\u003e4-ton central heat pump\u003c\/strong\u003e based solely on square footage. A recently built 1,800-square-foot home does not have the same heat loss as a building of the same size that is several decades old.\u003c\/p\u003e\n\u003ch3\u003e4 tons: what this capacity really means\u003c\/h3\u003e\n\u003cp\u003eOne ton of air conditioning corresponds to approximately \u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e. A four-ton heat pump therefore has a cooling capacity of around \u003cstrong\u003e48,000 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eHowever, the technical documentation for the SENDC-48HF goes well beyond this nominal figure. It indicates a cooling modulation range of approximately \u003cstrong\u003e15,600 to 51,000 BTU\/h\u003c\/strong\u003e. In heating mode, the manufacturer lists a nominal capacity of \u003cstrong\u003e50,000 BTU\/h\u003c\/strong\u003e, with a modulation range of approximately \u003cstrong\u003e15,500 to 57,300 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a fundamental difference from an older central system operating essentially in on\/off mode.\u003c\/p\u003e\n\u003cp\u003eWhen the building needs only part of the available capacity, the inverter compressor can reduce its output. When the outdoor temperature rises sharply in summer or falls in winter, the system can increase its output.\u003c\/p\u003e\n\u003cp\u003eThis modulation notably makes it possible to pursue:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emore stable indoor temperatures;\u003c\/li\u003e\n\u003cli\u003elonger, more regular operating cycles;\u003c\/li\u003e\n\u003cli\u003ebetter adaptation to the actual load;\u003c\/li\u003e\n\u003cli\u003efewer full compressor starts;\u003c\/li\u003e\n\u003cli\u003emore consistent air distribution through the ductwork.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSizing nevertheless remains essential. An inverter system does not eliminate the consequences of a significantly oversized unit.\u003c\/p\u003e\n\u003ch3\u003e1,601 CFM: an airflow consistent with a four-ton heat pump\u003c\/h3\u003e\n\u003cp\u003eAirflow is one of the most interesting specifications of this model.\u003c\/p\u003e\n\u003cp\u003eSenville indicates four indoor levels capable of reaching:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1,601 CFM\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1,471.5 CFM\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1,283.1 CFM\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1,094.8 CFM\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eTo put this value into context, central systems are often designed around a figure close to \u003cstrong\u003e400 CFM per ton\u003c\/strong\u003e, although the final airflow depends on the system design, humidity, load, and manufacturer settings.\u003c\/p\u003e\n\u003cp\u003eFour tons multiplied by approximately 400 CFM gives around \u003cstrong\u003e1,600 CFM\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis means that the existing ductwork must be capable of carrying that airflow.\u003c\/p\u003e\n\u003cp\u003eThis is something we systematically check at AirGreen. Installing an excellent 48,000 BTU heat pump on ductwork that is too restrictive can cause excessive static pressure, increased noise, poor distribution, and performance below expectations.\u003c\/p\u003e\n\u003ch3\u003eThe classic trap: automatically replacing an old 4-ton unit with a new 4-ton unit\u003c\/h3\u003e\n\u003cp\u003eIn the field of \u003cstrong\u003eresidential HVAC in Montreal\u003c\/strong\u003e, we regularly encounter systems installed 15, 20, or 25 years ago.\u003c\/p\u003e\n\u003cp\u003eWhen an old unit is rated at four tons, it is tempting to order exactly the same capacity.\u003c\/p\u003e\n\u003cp\u003eIt is not always the right decision.\u003c\/p\u003e\n\u003cp\u003eSince the old system was installed, the property may have received:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003enew windows;\u003c\/li\u003e\n\u003cli\u003emore insulation;\u003c\/li\u003e\n\u003cli\u003eair-sealing improvements;\u003c\/li\u003e\n\u003cli\u003ea new roof;\u003c\/li\u003e\n\u003cli\u003ea finished basement;\u003c\/li\u003e\n\u003cli\u003emodifications to the ductwork.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe current heating load may therefore be different.\u003c\/p\u003e\n\u003cp\u003eConversely, an addition, a sunroom converted into a habitable room, or a poorly insulated floor can increase demand.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we prefer to verify the actual configuration before confirming that \u003cstrong\u003e48,000 BTU\u003c\/strong\u003e remains the appropriate capacity.\u003c\/p\u003e\n\u003ch3\u003eSEER2 of 16.5 and EER2 of 10.5\u003c\/h3\u003e\n\u003cp\u003eThe official documentation states:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer TyagGW_tableContainerWithTableOfContents\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eData\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSENDC-48HF\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal cooling capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e48,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e15,600 to 51,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal heating capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e50,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e15,500 to 57,300 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSEER2\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e16,5\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEER2\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e10,5\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2-4\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e9,5\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2-5\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e8,0\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal COP\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3,4\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum outdoor heating temperature\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e-30 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum indoor airflow\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1,601 CFM\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThese data come from the manufacturer’s technical table. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003eSEER2 of 16.5\u003c\/strong\u003e should not be compared directly with that of a small, high-end wall-mounted heat pump, which may sometimes display ratings above 25 or 30.\u003c\/p\u003e\n\u003cp\u003eWe are referring here to a four-ton central system that must supply a duct network, move up to approximately 1,600 CFM, and heat an entire home or a large area.\u003c\/p\u003e\n\u003cp\u003eThe central system offers another major advantage: the temperature is distributed across multiple rooms through the existing ducts, rather than from a single wall-mounted head.\u003c\/p\u003e\n\u003ch3\u003eHeating at -8 °C, -15 °C, and -30 °C: the figures that really matter\u003c\/h3\u003e\n\u003cp\u003eThe statement “heating down to -30 °C” is useful, but it is not enough to evaluate a heat pump intended for Quebec.\u003c\/p\u003e\n\u003cp\u003eThe data provided with this combination indicate approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e39,500 BTU\/h at -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e46,000 BTU\/h at -15 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eup to \u003cstrong\u003e25,900 BTU\/h at -30 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe stated COP is approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.6 at -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.9 at -15 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.33 at -30 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese values clearly show why we never look only at the minimum temperature.\u003c\/p\u003e\n\u003cp\u003eAt -30 °C, the heat pump continues to produce heat, but its available capacity is significantly lower than its nominal capacity of 48,000 BTU.\u003c\/p\u003e\n\u003cp\u003eMeanwhile, the building requires more heating.\u003c\/p\u003e\n\u003cp\u003eThe question therefore becomes: \u003cstrong\u003ewhat is the home’s heat loss at that temperature?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is what determines whether an auxiliary heat source will be necessary.\u003c\/p\u003e\n\u003ch3\u003eAuxiliary heating: 10 kW, 15 kW, or 20 kW depending on the project\u003c\/h3\u003e\n\u003cp\u003eThe Senville product page shown in the brochure features auxiliary heating options of \u003cstrong\u003e10 kW, 15 kW, or 20 kW\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis possibility is particularly relevant in our climate.\u003c\/p\u003e\n\u003cp\u003eA central heat pump does not necessarily have to cover 100% of the home’s heating load during the coldest few hours of the year. A properly sized auxiliary electric element can take over or supplement the heat pump when necessary.\u003c\/p\u003e\n\u003cp\u003eHowever, the choice between 10, 15, and 20 kW should not be arbitrary.\u003c\/p\u003e\n\u003cp\u003eIt affects:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ebackup heating capacity;\u003c\/li\u003e\n\u003cli\u003ethe building’s electrical load;\u003c\/li\u003e\n\u003cli\u003erequired circuit size;\u003c\/li\u003e\n\u003cli\u003eelectrical panel capacity;\u003c\/li\u003e\n\u003cli\u003ethe system control strategy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn certain Montreal properties equipped with a limited-capacity electrical service, this check becomes decisive even before the equipment is ordered.\u003c\/p\u003e\n\u003ch2\u003eAirGreen installation: what really makes the difference with a 48,000 BTU central heat pump\u003c\/h2\u003e\n\u003ch3\u003eA central unit cannot compensate for inadequate ductwork\u003c\/h3\u003e\n\u003cp\u003eOne of the advantages of a central heat pump is also one of its main constraints: \u003cstrong\u003eit depends entirely on the ductwork\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a replacement project, we check in particular:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe size of the return-air duct;\u003c\/li\u003e\n\u003cli\u003ethe size of the main ducts;\u003c\/li\u003e\n\u003cli\u003ebranches;\u003c\/li\u003e\n\u003cli\u003edampers;\u003c\/li\u003e\n\u003cli\u003ethe condition of the ducts;\u003c\/li\u003e\n\u003cli\u003eavailable airflow;\u003c\/li\u003e\n\u003cli\u003erestrictions;\u003c\/li\u003e\n\u003cli\u003ethe filter;\u003c\/li\u003e\n\u003cli\u003estatic pressure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAn indoor unit capable of moving \u003cstrong\u003e1,601 CFM\u003c\/strong\u003e will not deliver its expected performance if the existing installation cannot allow this air to circulate properly.\u003c\/p\u003e\n\u003cp\u003eAn undersized return-air duct, for example, can create grille noise and reduce the actual airflow through the evaporator.\u003c\/p\u003e\n\u003ch3\u003eAn indoor vertical unit more than 52 inches tall\u003c\/h3\u003e\n\u003cp\u003eThe documentation specifies the following for the indoor unit:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e21.02 in wide × 24.49 in deep × 52.99 in high\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt weighs approximately \u003cstrong\u003e162.92 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese dimensions must be compared with the existing mechanical space.\u003c\/p\u003e\n\u003cp\u003eIn many properties in Greater Montreal, central installations are located:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ein the basement;\u003c\/li\u003e\n\u003cli\u003ein a mechanical room;\u003c\/li\u003e\n\u003cli\u003ein a closet;\u003c\/li\u003e\n\u003cli\u003ein a relatively narrow space near the water heater.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBefore replacement, we check not only whether the unit physically fits in the space, but also whether it can be properly serviced after installation.\u003c\/p\u003e\n\u003cp\u003eAccess to the filter, service panels, drain, and internal components must be provided.\u003c\/p\u003e\n\u003ch3\u003eAn outdoor unit weighing more than 200 lb\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit measures approximately \u003cstrong\u003e38.58 × 16.34 × 38.39 in\u003c\/strong\u003e and weighs approximately \u003cstrong\u003e201.06 lb\u003c\/strong\u003e. The stated outdoor sound level is \u003cstrong\u003e65 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt is therefore a genuine high-capacity central unit.\u003c\/p\u003e\n\u003cp\u003eIts location must take into account:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003esnow;\u003c\/li\u003e\n\u003cli\u003edefrost cycles;\u003c\/li\u003e\n\u003cli\u003edrainage;\u003c\/li\u003e\n\u003cli\u003erequired clearances;\u003c\/li\u003e\n\u003cli\u003ethe surroundings;\u003c\/li\u003e\n\u003cli\u003eaccess for maintenance;\u003c\/li\u003e\n\u003cli\u003ethe strength of the support or base;\u003c\/li\u003e\n\u003cli\u003ethe manufacturer's clearances.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOn the \u003cstrong\u003eNorth Shore and South Shore\u003c\/strong\u003e, snow accumulation can make poor placement particularly problematic in winter.\u003c\/p\u003e\n\u003ch3\u003e3\/8 in – 3\/4 in piping\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate refrigerant connections of \u003cstrong\u003e3\/8 in – 3\/4 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt this capacity, the gas line diameter is important and directly affects the installation work.\u003c\/p\u003e\n\u003cp\u003eWhen replacing an old central system, we therefore always check whether the existing refrigerant lines can be reused in accordance with the applicable requirements or whether they must be replaced.\u003c\/p\u003e\n\u003cp\u003eThe fact that an old heat pump is also advertised as “four tons” does not automatically guarantee piping compatibility.\u003c\/p\u003e\n\u003ch3\u003eR-454B: a new generation of refrigerant\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer's documentation indicates a charge of approximately \u003cstrong\u003e134.04 oz of R-454B\u003c\/strong\u003e for this system. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eR-454B is one of the A2L refrigerants used in new generations of HVAC equipment.\u003c\/p\u003e\n\u003cp\u003eFor us, this means that commissioning must follow procedures appropriate to the product:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eproper refrigerant handling;\u003c\/li\u003e\n\u003cli\u003ecompatible tools;\u003c\/li\u003e\n\u003cli\u003eleak testing;\u003c\/li\u003e\n\u003cli\u003evacuum evacuation;\u003c\/li\u003e\n\u003cli\u003econnection inspection;\u003c\/li\u003e\n\u003cli\u003eload verification based on the installation;\u003c\/li\u003e\n\u003cli\u003evalidation of operating temperatures and pressures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA central system of this capacity should never be treated as a simple mechanical replacement where the lines are quickly connected and the job is considered done.\u003c\/p\u003e\n\u003ch3\u003eMCA of 38 A and maximum protection of 40 A\u003c\/h3\u003e\n\u003cp\u003eThe SENDC-48HF requires a \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e power supply.\u003c\/p\u003e\n\u003cp\u003eThe technical data indicates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 38 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003emaximum protection: 40 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese values concern the main equipment and must be incorporated into the project's complete electrical analysis.\u003c\/p\u003e\n\u003cp\u003eWhen auxiliary heating is added, its electrical demand must also be taken into account.\u003c\/p\u003e\n\u003cp\u003eThis is particularly important in a fully electric home with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewater heater;\u003c\/li\u003e\n\u003cli\u003estove;\u003c\/li\u003e\n\u003cli\u003edryer;\u003c\/li\u003e\n\u003cli\u003echarging station;\u003c\/li\u003e\n\u003cli\u003eauxiliary heating;\u003c\/li\u003e\n\u003cli\u003eother major loads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDehumidification: approximately 3.85 L\/h\u003c\/h3\u003e\n\u003cp\u003eThe documentation indicates a moisture removal capacity of \u003cstrong\u003e3.85 L\/h\u003c\/strong\u003e, or approximately \u003cstrong\u003e8.14 pints per hour\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a central home, this point is particularly relevant during the hot and humid periods of July and August.\u003c\/p\u003e\n\u003cp\u003eA properly sized system must run long enough to remove moisture from the air.\u003c\/p\u003e\n\u003cp\u003eThis is another reason why oversized equipment is undesirable: if it cools too quickly and then stops frequently, humidity control may be less effective.\u003c\/p\u003e\n\u003ch3\u003eWall-mounted thermostat and optional WiFi\u003c\/h3\u003e\n\u003cp\u003eThe documentation specifies that the system uses a \u003cstrong\u003ewall-mounted thermostat\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specification, for its part, indicates that \u003cstrong\u003eWiFi is available as an option\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a central installation, the thermostat becomes an important part of daily operation. It should be installed in a location representative of the home's overall temperature, away from a direct heat source, an exterior door, or a draft.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR: a detail that must be confirmed for the exact combination\u003c\/h3\u003e\n\u003cp\u003eThe information provided reveals a particular inconsistency here.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen sheet indicates \u003cstrong\u003eEnergy Star: No\u003c\/strong\u003e, while also displaying an Energy Star number, \u003cstrong\u003e3649598\u003c\/strong\u003e, and the designation “Cold Climate: Yes.”\u003c\/p\u003e\n\u003cp\u003eMeanwhile, page 2 of the brochure visually displays an \u003cstrong\u003eENERGY STAR Certified\u003c\/strong\u003e badge in the product overview section, while the brochure's “Documentation and Certifications” section mainly cites the AHRI certification and the EnergyGuide label. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTo avoid any confusion, we recommend confirming the certification applicable to the exact combination \u003cstrong\u003eSENDC-48HF-OG + SENDC-48HF-IG, AHRI 215735329\u003c\/strong\u003e at the time of quotation.\u003c\/p\u003e\n\u003cp\u003eFor rebates, it is always the specific combination and its official eligibility that must be verified.\u003c\/p\u003e\n\u003ch3\u003eDisplayed rebate of $4,740\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet provided for this heat pump indicates a \u003cstrong\u003e$4,740 provincial rebate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAn amount of this significance can completely transform the net cost of a central-system project.\u003c\/p\u003e\n\u003cp\u003eHowever, we never recommend making a purchase decision based solely on an amount shown. Financial assistance programs may change, and eligibility must be confirmed with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe indoor and outdoor models;\u003c\/li\u003e\n\u003cli\u003ethe AHRI number;\u003c\/li\u003e\n\u003cli\u003ethe property;\u003c\/li\u003e\n\u003cli\u003ethe rules in effect at the time of installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty: a difference to clarify before purchase\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet provided with the product indicates a warranty of:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years compressor – 10 years parts – 0 years labor.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure currently attached instead indicates:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years on the compressor and 5 years on the parts.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical table repeats the same \u003cstrong\u003e10-year compressor \/ 5-year parts\u003c\/strong\u003e coverage. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe applicable warranty terms for the system sold by AirGreen must therefore be confirmed. Extended coverage may depend on the distributor, the warranty program, appliance registration, or other commercial conditions.\u003c\/p\u003e\n\u003cp\u003eLabor also remains separate coverage from the manufacturer's parts warranty.\u003c\/p\u003e\n\u003ch3\u003eA typical scenario: replacing an old central heat pump without redoing the entire house\u003c\/h3\u003e\n\u003cp\u003eA common scenario in our central-system projects is a house that already has a duct network in good condition, but whose outdoor condenser and indoor equipment are aging.\u003c\/p\u003e\n\u003cp\u003eThe owner does not want to install multiple wall-mounted heads in the different rooms. They prefer to continue using:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe same grilles;\u003c\/li\u003e\n\u003cli\u003ethe same ducts;\u003c\/li\u003e\n\u003cli\u003ethe same central thermostat principle;\u003c\/li\u003e\n\u003cli\u003ea single outdoor unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn this configuration, an inverter heat pump such as the \u003cstrong\u003eSENVILLE SENDC-48HF\u003c\/strong\u003e can be very appealing.\u003c\/p\u003e\n\u003cp\u003eBut before confirming the replacement, we must always check the airflow, system capacity, available electrical power, and the building’s heat loss.\u003c\/p\u003e\n\u003cp\u003eWe have seen enough central systems to know that a successful installation rarely depends on a single number printed on the box.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for a 4-ton SENVILLE central heat pump\u003c\/h3\u003e\n\u003cp\u003eA central installation requires more coordination than a simple wall-mounted unit.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we examine the project as a whole:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ecapacity sizing;\u003c\/li\u003e\n\u003cli\u003eductwork condition;\u003c\/li\u003e\n\u003cli\u003eairflow;\u003c\/li\u003e\n\u003cli\u003estatic pressure;\u003c\/li\u003e\n\u003cli\u003eair return;\u003c\/li\u003e\n\u003cli\u003eplenum connection;\u003c\/li\u003e\n\u003cli\u003eelectrical supply;\u003c\/li\u003e\n\u003cli\u003eauxiliary heating sizing;\u003c\/li\u003e\n\u003cli\u003erefrigerant piping;\u003c\/li\u003e\n\u003cli\u003edrainage;\u003c\/li\u003e\n\u003cli\u003econdenser location;\u003c\/li\u003e\n\u003cli\u003ethermostat;\u003c\/li\u003e\n\u003cli\u003ecommissioning;\u003c\/li\u003e\n\u003cli\u003ewinter performance;\u003c\/li\u003e\n\u003cli\u003eeligibility for rebates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a property in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, the South Shore, or Montérégie\u003c\/strong\u003e, this approach helps avoid a costly mistake: installing technically high-performing equipment on infrastructure that is not suitable.\u003c\/p\u003e\n\u003ch3\u003eOur assessment of the SENVILLE SENDC-48HF\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE 4-ton central system – 48,000 BTU\u003c\/strong\u003e offers an interesting technical combination for a replacement or modernization project:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e48,000 BTU of nominal cooling capacity\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eup to \u003cstrong\u003e50,000 BTU of nominal heating capacity\u003c\/strong\u003e according to the brochure;\u003c\/li\u003e\n\u003cli\u003eoperation advertised down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ecapacity of \u003cstrong\u003e46,000 BTU\/h at -15 °C\u003c\/strong\u003e according to the data provided;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSEER2 of 16.5\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSPF2 of 9.5\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003einverter technology;\u003c\/li\u003e\n\u003cli\u003eup to \u003cstrong\u003e1,601 CFM\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003erefrigerant \u003cstrong\u003eR-454B\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eauxiliary heating available;\u003c\/li\u003e\n\u003cli\u003epiping \u003cstrong\u003e3\/8 in. – 3\/4 in.\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eWi-Fi available as an option.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIts value is particularly clear when a home already has a well-designed ductwork system and the owner wants to maintain consistent whole-home comfort while replacing an older installation.\u003c\/p\u003e\n\u003cp\u003eThe correct capacity must nevertheless be confirmed before the work begins. A four-ton heat pump is not automatically the right solution just because the old unit was also four tons.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor a quote, an inspection of your ductwork, or the replacement of your existing central system, contact AirGreen. We install and service central heat pumps in Montreal, Laval, Longueuil, on the North Shore and South Shore, with a complete assessment of the heating, air conditioning, electrical, and air distribution systems before installation.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119967547684,"sku":"SENDC-48HF-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/01_THERMOPOMPE_CENTRALE_SENVILLE_R454B_4_TONNES_48000BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789056269"},{"product_id":"thermopompe-centrale-senville-r454b-5-tonnes-60000-btu","title":"SENVILLE R454B Central Heat Pump | 5 Tons - 60000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA high-capacity SENVILLE central system that combines Inverter modulation, heating down to -30 °C, and whole-home air distribution\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE R454B Central Heat Pump | 5 Tons - 60000 BTU\u003c\/strong\u003e is intended for projects where a simple wall-mounted unit no longer meets the desired objective. Here, we are talking about a central system designed to work with a \u003cstrong\u003educt network\u003c\/strong\u003e, move up to approximately \u003cstrong\u003e1,807 CFM\u003c\/strong\u003e indoors, and provide heating and cooling to multiple rooms from a single system.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we are particularly interested in this type of equipment for large homes in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e, as well as for certain commercial projects. A central heat pump in this category can replace an old central air conditioner, an aging heat pump, or be part of a complete upgrade that includes a new air handler.\u003c\/p\u003e\n\u003cp\u003eThe exact combination is:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSENVILLE SENDC-60HF-OG outdoors and SENDC-60HF-IG indoors\u003c\/strong\u003e, certified under \u003cstrong\u003eAHRI number 215735330\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOne technical detail needs to be clarified immediately. The system is commercially classified as \u003cstrong\u003e60,000 BTU \/ 5 tons\u003c\/strong\u003e, but the AHRI-certified combination is rated at \u003cstrong\u003e54,000 BTU\/h of rated cooling capacity\u003c\/strong\u003e and \u003cstrong\u003e56,000 BTU\/h of heating capacity\u003c\/strong\u003e. The AHRI certificate also confirms \u003cstrong\u003e16.0 SEER2\u003c\/strong\u003e and \u003cstrong\u003e10.0 EER2\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure lists these values and indicates a cooling range of \u003cstrong\u003e11,400 to 56,300 BTU\/h\u003c\/strong\u003e, as well as a particularly broad heating range of \u003cstrong\u003e8,100 to 64,500 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference between the “60,000 BTU” designation and the certified rated capacity of 54,000 BTU is not unusual. In the \u003cstrong\u003eHVAC\u003c\/strong\u003e field, a tonnage class does not always correspond exactly to the certified capacity of the indoor-outdoor combination. To compare two systems properly, we therefore use the \u003cstrong\u003eAHRI number and certified capacities\u003c\/strong\u003e, not just the commercial name.\u003c\/p\u003e\n\u003ch3\u003eA technical overview that immediately shows what type of system we are dealing with\u003c\/h3\u003e\n\u003cp\u003eThe main features of this SENVILLE central system are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCapacity class: 5 tons \/ 60,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCertified rated cooling capacity: 54,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling range: 11,400 to 56,300 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating capacity: 56,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating range: 8,100 to 64,500 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating capacity at -8 °C: 45,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating capacity at -15 °C: 52,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum capacity indicated at -30 °C: 30,900 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP at -8 °C: approximately 2.4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP at -15 °C: approximately 1.8\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP at -30 °C: approximately 1.46\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 16.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 10.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2: 9.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMinimum heating temperature: -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum indoor airflow: 1,807 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V, single-phase\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 40 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 40 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePiping: 3\/8 in – 3\/4 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENDC-60HF-OG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: SENDC-60HF-IG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735330\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi: available as an option\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe brochure also confirms a \u003cstrong\u003enominal COP of 3.1\u003c\/strong\u003e, an HSPF2 of 9.0 for Region IV, and a maximum electrical protection of 40 A. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThe most important point: an Inverter compressor that does not operate like an old central heat pump\u003c\/h3\u003e\n\u003cp\u003eAn older conventional central system often operates according to a much simpler logic: start at full capacity, run, stop, then restart when the temperature again moves away from the setpoint.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENDC-60HF\u003c\/strong\u003e instead uses variable-speed technology. The compressor can adjust its output to the building's actual load.\u003c\/p\u003e\n\u003cp\u003eIn heating mode, the published range is approximately \u003cstrong\u003e8,100 to 64,500 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis significantly changes the system's behavior during the shoulder seasons.\u003c\/p\u003e\n\u003cp\u003eA home that requires 50,000 BTU\/h during a very cold January night may need only 15,000 or 20,000 BTU\/h during an October day. A variable-capacity heat pump can reduce its output instead of multiplying short cycles.\u003c\/p\u003e\n\u003cp\u003eIn a properly designed central installation, this can promote:\u003c\/p\u003e\n\u003cp\u003emore consistent temperatures between cycles, quieter operation at partial load, longer cycle times, fewer abrupt starts, and energy consumption better suited to actual demand.\u003c\/p\u003e\n\u003cp\u003eHowever, modulation does not correct poor ductwork design. A quality central heat pump installed on undersized ducts remains a system limited by its ductwork.\u003c\/p\u003e\n\u003ch3\u003e1,807 CFM: why the ductwork becomes an integral part of the heat pump\u003c\/h3\u003e\n\u003cp\u003eThe air handler can reach approximately \u003cstrong\u003e1,807 CFM\u003c\/strong\u003e at maximum speed. The other published values are approximately 1,583, 1,360, and 1,136 CFM, depending on the ventilation setting. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn the field, this factor matters enormously.\u003c\/p\u003e\n\u003cp\u003eWhen we replace an old central system in a residence in \u003cstrong\u003eMontréal, Laval, or Longueuil\u003c\/strong\u003e, we do not look only at whether the new unit physically fits where the old one was.\u003c\/p\u003e\n\u003cp\u003eWe also check whether:\u003c\/p\u003e\n\u003cp\u003ethe return-air openings are large enough, the main duct can carry the required airflow, the branches properly supply the more distant rooms, the registers do not create too much restriction, and the static pressure remains compatible with the air handler.\u003c\/p\u003e\n\u003cp\u003eA 5-ton capacity requires a significant volume of air.\u003c\/p\u003e\n\u003cp\u003eInstalling a large heat pump on a network that was originally designed for a much smaller unit can cause insufficient airflow, noise at the registers, poor heat exchange, or uneven distribution between floors.\u003c\/p\u003e\n\u003cp\u003eThis is one of the reasons why, at AirGreen, we never consider replacing a central system to be a simple “box-for-box” exchange.\u003c\/p\u003e\n\u003ch3\u003eAn AirGreen example in Westmount: when existing ductwork determines much of the work\u003c\/h3\u003e\n\u003cp\u003eDuring an installation of a \u003cstrong\u003eMidea EVOX G3 central heat pump in Westmount\u003c\/strong\u003e, our team was working in an older house with a cramped mechanical room and an existing duct network that had evolved through years of renovations.\u003c\/p\u003e\n\u003cp\u003eThe work involved more than simply connecting an indoor unit. We had to account for the plenum, the tightness of the connections, the refrigerant lines, condensate drainage, and accessibility for future servicing. On this type of project, a high-performance central system can genuinely improve temperature stability between rooms, but only if the air distribution is addressed with the same care as the heat pump itself. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe same logic applies directly to this \u003cstrong\u003eSENVILLE 5-ton central system\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e16 SEER2: interesting efficiency for a central system of this capacity\u003c\/h3\u003e\n\u003cp\u003eThe AHRI certificate and brochure list a \u003cstrong\u003eSEER2 of 16.0\u003c\/strong\u003e and an \u003cstrong\u003eEER2 of 10.0\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis efficiency should not be compared directly with the SEER2 ratings of 25 or 30 that can be found on some small wall-mounted heat pumps.\u003c\/p\u003e\n\u003cp\u003eA 5-ton central system must circulate air through a duct network, handle different pressure losses, and supply multiple areas of the building. These are two different types of systems.\u003c\/p\u003e\n\u003cp\u003eThe advantage of a central system lies elsewhere: \u003cstrong\u003ea single system distributes heating and cooling throughout the rooms already connected to the ductwork\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner who does not want multiple visible wall-mounted units in the house or who already has functional central infrastructure, this configuration may make much more sense.\u003c\/p\u003e\n\u003ch3\u003eHeating at -30 °C: the figure that changes this unit's role in winter\u003c\/h3\u003e\n\u003cp\u003eThe Senville brochure states that it operates in heating mode down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance at different temperatures is even more interesting than the simple operating limit.\u003c\/p\u003e\n\u003cp\u003eAt approximately \u003cstrong\u003e-8 °C\u003c\/strong\u003e, the capacity used for this configuration is \u003cstrong\u003e45,000 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-15 °C\u003c\/strong\u003e, it reaches approximately \u003cstrong\u003e52,000 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-30 °C\u003c\/strong\u003e, the indicated maximum capacity remains approximately \u003cstrong\u003e30,900 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe ENERGY STAR database associated with the model also confirms a \u003cstrong\u003econtinuously variable\u003c\/strong\u003e compressor unit operating with R454B, providing 45,000 BTU\/h of heating at 17 °F, or approximately -8 °C, and 52,000 BTU\/h at 5 °F, or approximately -15 °C. It also identifies it as a \u003cstrong\u003ecold-climate\u003c\/strong\u003e system. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is important information for Quebec's climate.\u003c\/p\u003e\n\u003cp\u003eHowever, this does not necessarily mean that 30,900 BTU\/h is enough to heat an entire house when the outdoor temperature reaches -30 °C.\u003c\/p\u003e\n\u003cp\u003eIf the house loses 55,000 BTU\/h at this temperature, the system will need supplemental heating to cover the difference.\u003c\/p\u003e\n\u003ch3\u003eWhy an electric supplemental heating element may still be necessary\u003c\/h3\u003e\n\u003cp\u003eSenville also offers this system with an auxiliary heating element option of up to \u003cstrong\u003e20 kW\u003c\/strong\u003e, as indicated by the product configuration in the brochure. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a properly designed installation, auxiliary heating is not intended to operate constantly.\u003c\/p\u003e\n\u003cp\u003eInstead, we aim to keep the heat pump operating for as long as it remains economically and thermally appropriate, then use supplemental heat when the home's heat loss exceeds its available capacity.\u003c\/p\u003e\n\u003cp\u003eThe thermostat setting then plays a major role. Incorrect settings can cause the resistance heaters to start far too early and significantly reduce the expected savings from a heat pump.\u003c\/p\u003e\n\u003ch3\u003eCOP of 1.46 at -30 °C: a figure that helps explain the economic rationale\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eCOP\u003c\/strong\u003e, or coefficient of performance, compares the thermal energy produced with the electricity consumed.\u003c\/p\u003e\n\u003cp\u003eA conventional electric resistance heater operates essentially at a COP of 1.\u003c\/p\u003e\n\u003cp\u003eThis Senville shows approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2.4 at -8 °C\u003c\/strong\u003e, \u003cstrong\u003e1.8 at -15 °C\u003c\/strong\u003e, and approximately \u003cstrong\u003e1.46 at -30 °C\u003c\/strong\u003e in the data associated with the model.\u003c\/p\u003e\n\u003cp\u003eThis means that efficiency decreases at very low temperatures, which is normal, but that the unit theoretically continues to transfer more heat than the electrical energy directly consumed by its compressor.\u003c\/p\u003e\n\u003cp\u003eThat is precisely why we consider COP together with capacity.\u003c\/p\u003e\n\u003cp\u003eAn impressive COP is useless if the heat pump no longer produces enough BTUs to meet the home’s needs. Conversely, high capacity with a low COP can cost more to operate.\u003c\/p\u003e\n\u003cp\u003eThe right system is the one that offers the best compromise within the temperature range in which it will actually operate.\u003c\/p\u003e\n\u003ch2\u003eAirGreen installation: with a 5-ton central system, sizing, ductwork, and commissioning matter just as much as the equipment\u003c\/h2\u003e\n\u003ch3\u003eA 5-ton heat pump is not automatically intended for a “large house”\u003c\/h3\u003e\n\u003cp\u003eSenville mentions in its commercial documentation a capacity suitable for spaces of up to approximately \u003cstrong\u003e2,000 sq. ft.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we avoid converting this information into a “square feet = tons” rule.\u003c\/p\u003e\n\u003cp\u003eA recently built 2,000 sq. ft. home with a high-performance envelope may require much less heating and cooling than a home of the same size built several decades ago with significant air infiltration.\u003c\/p\u003e\n\u003cp\u003eConversely, a home with high ceilings, large window areas, and a partially above-grade basement may have a much higher load.\u003c\/p\u003e\n\u003cp\u003eFor a \u003cstrong\u003ecentral heat pump installation in Montreal, Laval, Longueuil, on the South Shore or the North Shore\u003c\/strong\u003e, we therefore examine the building’s actual load.\u003c\/p\u003e\n\u003cp\u003eAn oversized system may create cycles that are too short and impair dehumidification.\u003c\/p\u003e\n\u003cp\u003eAn undersized system may constantly operate at maximum capacity and call on auxiliary heating too often.\u003c\/p\u003e\n\u003ch3\u003eDehumidification: approximately 12.4 pints per hour under the published conditions\u003c\/h3\u003e\n\u003cp\u003eThe brochure lists a moisture-removal capacity of \u003cstrong\u003e5.87 L\/h\u003c\/strong\u003e, which corresponds approximately to the \u003cstrong\u003e12.4 pints per hour\u003c\/strong\u003e indicated in the product data. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis information becomes important on humid days in July and August.\u003c\/p\u003e\n\u003cp\u003eA properly sized central heat pump should not simply lower the temperature quickly. It must also run long enough to remove moisture from the air.\u003c\/p\u003e\n\u003cp\u003eThat is why oversizing a central system “to be safe” can produce the opposite of what the homeowner wants: a cold but still humid house.\u003c\/p\u003e\n\u003ch3\u003eAn AirGreen project in Brossard: central comfort is not just about BTUs\u003c\/h3\u003e\n\u003cp\u003eFor a central heat pump installation in \u003cstrong\u003eBrossard\u003c\/strong\u003e, our team replaced an aging system in a single-family home. The client’s objective was clear: maintain consistent comfort throughout the home, reduce noise, and limit dependence on supplemental electric heating.\u003c\/p\u003e\n\u003cp\u003eAfter analyzing the building and existing ductwork, we integrated an inverter-based central system. The desired and observed result on this type of project is a more stable temperature from room to room and quieter operation than with the previous configuration. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe lesson applies directly to Senville: \u003cstrong\u003ethe right capacity must work with the right ductwork\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eDimensions and weight: the mechanical room must be checked before delivery\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e21.02 in × 24.49 in × 52.99 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e162.92 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e37.48 in × 16.34 in × 52.48 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003efor approximately \u003cstrong\u003e242.95 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese dimensions make planning particularly important when replacing a system in a finished basement.\u003c\/p\u003e\n\u003cp\u003eWe specifically check door widths, stair access, clearance in front of service panels, the location of the lines, and the transition between the indoor unit and the existing plenum.\u003c\/p\u003e\n\u003cp\u003eA unit that fits into the mechanical room but no longer leaves enough space to replace a motor or access the drain is not properly installed.\u003c\/p\u003e\n\u003ch3\u003eR454B: replacing an old central system requires new methods\u003c\/h3\u003e\n\u003cp\u003eThe SENDC-60HF operates with \u003cstrong\u003eR454B\u003c\/strong\u003e, with a charge listed by Senville of approximately \u003cstrong\u003e183.42 oz\u003c\/strong\u003e for the published configuration. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eR454B is a low-flammability A2L refrigerant.\u003c\/p\u003e\n\u003cp\u003eThe product line manual specifies a \u003cstrong\u003eleak detection system\u003c\/strong\u003e: if the sensor detects refrigerant, the outdoor compressor stops and the indoor fan is activated according to the system’s safety logic. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor our R454B central installations, we therefore apply adapted procedures: A2L-compatible equipment, careful connections, leak testing, proper circuit evacuation, drainage inspection, and documented commissioning.\u003c\/p\u003e\n\u003cp\u003eWe have already encountered this reality in our \u003cstrong\u003eR454B central heat pump projects in Montérégie\u003c\/strong\u003e. In Mont-Saint-Grégoire, for example, the outdoor unit had to be integrated into a limited space while maintaining clearances, service access, and protection against snow and moisture. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e3\/8 in – 3\/4 in piping: a critical consideration during replacement\u003c\/h3\u003e\n\u003cp\u003eThe planned configuration uses \u003cstrong\u003e3\/8 in – 3\/4 in\u003c\/strong\u003e piping.\u003c\/p\u003e\n\u003cp\u003eWhen an old central heat pump is replaced, we systematically check the existing dimensions rather than assuming they are compatible.\u003c\/p\u003e\n\u003cp\u003eWe also examine the condition of the copper, its insulation, length, routing, and compatibility with the new R454B system.\u003c\/p\u003e\n\u003cp\u003eReusing an inaccessible conduit inside a wall may make sense, but only when its compliance has been confirmed. Convenience must never replace the manufacturer’s requirements.\u003c\/p\u003e\n\u003ch3\u003eThe electrical circuit: 40 A MCA and 40 A maximum protection\u003c\/h3\u003e\n\u003cp\u003eThe technical documentation indicates a \u003cstrong\u003e208\/230 V single-phase\u003c\/strong\u003e power supply, a minimum ampacity of \u003cstrong\u003e40 A\u003c\/strong\u003e, and maximum protection of \u003cstrong\u003e40 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis concerns the heat pump itself.\u003c\/p\u003e\n\u003cp\u003eIf an auxiliary electric heating element is added, the system’s overall electrical requirements may become significantly greater. The property’s electrical panel must therefore be evaluated based on the complete configuration.\u003c\/p\u003e\n\u003cp\u003eFor a central-system conversion, this check must be completed before ordering the electrical work, especially in homes where an older gas- or oil-fired system was previously installed.\u003c\/p\u003e\n\u003ch3\u003e65 dB(A) outdoors: the condenser location deserves serious consideration\u003c\/h3\u003e\n\u003cp\u003eSenville indicates approximately \u003cstrong\u003e65 dB(A)\u003c\/strong\u003e for the outdoor unit. Indoors, the published levels range from approximately \u003cstrong\u003e34.5 to 54.5 dB(A)\u003c\/strong\u003e, depending on the airflow. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore avoid placing the condenser directly beneath a bedroom window when the property allows for a better solution.\u003c\/p\u003e\n\u003cp\u003eWe also take the surrounding properties into account. In several \u003cstrong\u003eMontreal\u003c\/strong\u003e boroughs or more densely built-up areas of \u003cstrong\u003eLongueuil and Laval\u003c\/strong\u003e, the distance between two buildings is limited.\u003c\/p\u003e\n\u003cp\u003eA good location must balance performance, clearances, snow, vibration, service access, and acoustic comfort.\u003c\/p\u003e\n\u003ch3\u003eThe $5,400 LogisVert rebate: where exactly does this amount come from?\u003c\/h3\u003e\n\u003cp\u003eThe capacity used for the calculation is \u003cstrong\u003e45,000 BTU\/h at -8°C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eHydro-Québec currently indicates that a certified \u003cstrong\u003eENERGY STAR – Cold Climate\u003c\/strong\u003e heat pump may qualify for \u003cstrong\u003e$120 per 1,000 BTU\/h at -8°C\u003c\/strong\u003e when all program requirements are met. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor this Senville:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e45 × $120 = $5,400\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe displayed amount of \u003cstrong\u003e5 400 $\u003c\/strong\u003e therefore corresponds exactly to this formula.\u003c\/p\u003e\n\u003cp\u003eThe ENERGY STAR database associated with identifier \u003cstrong\u003e3649599\u003c\/strong\u003e does list the \u003cstrong\u003eSENDC-60HF-OG \/ SENDC-60HF-IG\u003c\/strong\u003e combination, AHRI number 215735330, R454B, and the \u003cstrong\u003ecold climate\u003c\/strong\u003e classification. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTo determine a project’s actual eligibility, we always verify the lists and conditions in effect on the \u003cstrong\u003einstallation date\u003c\/strong\u003e, because Hydro-Québec specifies that the amount and eligibility are determined according to that date. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eAn important nuance about ENERGY STAR\u003c\/h3\u003e\n\u003cp\u003eSome product information sheets may display data that has not yet been harmonized following a certification update.\u003c\/p\u003e\n\u003cp\u003eIn this specific case, the number \u003cstrong\u003eAHRI 215735330\u003c\/strong\u003e is active, and the ENERGY STAR database associated with the model identifies it as \u003cstrong\u003ecold climate\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a LogisVert application, we therefore rely on the exact match and the official lists applicable at the time of the work, rather than on a simple isolated “yes” or “no” on a product page.\u003c\/p\u003e\n\u003ch3\u003eWarranty: verify which contractual coverage applies to the AirGreen project\u003c\/h3\u003e\n\u003cp\u003eThe current Senville brochure indicates a manufacturer’s warranty of \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product information sheet may, for its part, present coverage \u003cstrong\u003e10-10-0\u003c\/strong\u003e as well as the possibility of an additional warranty.\u003c\/p\u003e\n\u003cp\u003eThe difference may result from the warranty program applicable to the sales channel or from additional coverage. We therefore specify the exact coverage directly on the quote and in the documents provided to the customer.\u003c\/p\u003e\n\u003cp\u003eFor the homeowner, these are the documents, along with the model and serial numbers, that must be kept.\u003c\/p\u003e\n\u003ch3\u003eSymptoms indicating that a central system does not simply have a “heat pump problem”\u003c\/h3\u003e\n\u003cp\u003eOn a system of this size, several comfort problems may originate in the ductwork rather than the compressor.\u003c\/p\u003e\n\u003cp\u003eIf some bedrooms remain much colder than others, we check the balancing and ductwork.\u003c\/p\u003e\n\u003cp\u003eIf the unit seems to be blowing very forcefully and noisily, we check the static pressure, return-air paths, and restrictions.\u003c\/p\u003e\n\u003cp\u003eIf the air conditioning reaches the setpoint quickly but leaves high humidity, we look at the sizing and cycle duration.\u003c\/p\u003e\n\u003cp\u003eIf the auxiliary heating elements start too often, we check the thermostat, supplemental heating settings, the heat pump’s actual capacity, and the building’s heat losses.\u003c\/p\u003e\n\u003cp\u003eIf water appears around the indoor unit, we inspect the drain, pan, slope, and condensation management.\u003c\/p\u003e\n\u003cp\u003eThat is precisely why a \u003cstrong\u003ecentral heat pump\u003c\/strong\u003e must be diagnosed as a complete system.\u003c\/p\u003e\n\u003ch3\u003eFor which project is the SENVILLE SENDC-60HF particularly appealing?\u003c\/h3\u003e\n\u003cp\u003eThis central system becomes a suitable option for a property that already has a duct network capable of supporting the required airflow, needs substantial capacity, and whose owner wants to use the heat pump for a significant portion of winter heating.\u003c\/p\u003e\n\u003cp\u003eIt is also appealing for a project seeking a central system \u003cstrong\u003eR454B\u003c\/strong\u003e, inverter technology, heating capacity down to -30 °C, and even distribution across several rooms without installing multiple wall-mounted units.\u003c\/p\u003e\n\u003cp\u003eWe would be more cautious if the building had insufficient ductwork, if its actual load were much lower than 5 tons, or if the mechanical space did not allow for proper installation and maintenance.\u003c\/p\u003e\n\u003ch3\u003eWhy entrust this installation to AirGreen\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003eSENVILLE 5-ton central heat pump\u003c\/strong\u003e is an important piece of equipment, but the final result depends on the complete system surrounding it.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we work on central systems in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e, assessing both the equipment and its surroundings: ductwork, return air, electrical supply, plenums, drainage, outdoor unit location, refrigerant piping, and auxiliary heating strategy.\u003c\/p\u003e\n\u003cp\u003eOur recent experience with \u003cstrong\u003eR454B central systems in Mont-Saint-Grégoire, Saint-Valentin, Hemmingford, Brossard, and Greater Montreal\u003c\/strong\u003e regularly reminds us of the same thing: a properly selected central system must also be correctly integrated into the building. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen quote for the SENVILLE 5-Ton Central Heat Pump\u003c\/h3\u003e\n\u003cp\u003eFor a \u003cstrong\u003eSENVILLE R454B 5-Ton Central Heat Pump – 60,000 BTU\u003c\/strong\u003e in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, or Montérégie\u003c\/strong\u003e, contact AirGreen.\u003c\/p\u003e\n\u003cp\u003eWe can check the heat load, ductwork, electrical panel, piping, auxiliary heating capacity, equipment location, and eligibility for the \u003cstrong\u003e$5,400 LogisVert rebate\u003c\/strong\u003e before finalizing the configuration.\u003c\/p\u003e\n\u003cp\u003eA system of this capacity must be selected as a complete system, not as a simple replacement based on the number of tons listed on the old unit.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119967613220,"sku":"SENDC-60HF-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/01_THERMOPOMPE_CENTRALE_SENVILLE_R454B_5_TONNES_60000BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789056276"},{"product_id":"thermopompe-centrale-senville-r32-top-discharge-2-tonnes-24000-btu","title":"SENVILLE R32 Top Discharge Central Heat Pump | 2 Tons - 24000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA compact 2-ton central system that must be evaluated based on its actual performance, airflow, and winter behavior\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e2-ton SENVILLE R32 Top Discharge central heat pump\u003c\/strong\u003e, combination \u003cstrong\u003eSENTC-24TD-OG \/ SENTC-24TD-IG\u003c\/strong\u003e, is primarily intended for homeowners who want to replace or modernize a central system while retaining ducted distribution. With a rated capacity of \u003cstrong\u003e24,000 BTU\/h\u003c\/strong\u003e, an inverter compressor, indoor airflow of up to \u003cstrong\u003e830 CFM\u003c\/strong\u003e, and announced heating operation down to \u003cstrong\u003e-20°C\u003c\/strong\u003e, it offers an interesting configuration for certain homes, condominiums, and small buildings in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, however, we never evaluate a central heat pump solely based on the number of tons listed on its technical sheet. With a central system, the quality of the results depends just as much on its \u003cstrong\u003eactual low-temperature capacity\u003c\/strong\u003e, the ductwork, available airflow, static pressure, return air, outdoor unit location, and electrical sizing.\u003c\/p\u003e\n\u003cp\u003eThe Senville documentation presents this system as a solution for small to medium-sized homes, with an indicative coverage area of up to approximately \u003cstrong\u003e1,200 sq. ft.\u003c\/strong\u003e. It also confirms inverter technology and a rated cooling capacity of 24,000 BTU\/h. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThe exact combination we are analyzing\u003c\/h3\u003e\n\u003cp\u003eFor this AirGreen product page, the key references are as follows:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eFeature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eData\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutdoor unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSENTC-24TD-OG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIndoor unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSENTC-24TD-IG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24,000 BTU\/h – 2 tons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAHRI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e218338223\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRefrigerant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eR-32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eENERGY STAR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCold Climate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnnounced minimum heating temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-20°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum indoor airflow\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e830 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/8 in. liquid – 3\/4 in. gas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e208\/230 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWiFi\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOptional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10-year compressor, 10-year parts, 0-year labor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdditional warranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePossible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eOne detail about the efficiency ratings deserves clarification. The AirGreen product page states \u003cstrong\u003eSEER 19.7\u003c\/strong\u003e, \u003cstrong\u003eEER 12.5\u003c\/strong\u003e, and \u003cstrong\u003eHSPF 8.5\u003c\/strong\u003e, while the Senville technical brochure provided for this series lists \u003cstrong\u003eSEER2 20.0\u003c\/strong\u003e, \u003cstrong\u003eEER2 13.3\u003c\/strong\u003e, and \u003cstrong\u003eHSPF2 Region 4 of 9.4\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe avoid arbitrarily combining these figures. The SEER and SEER2 designations, or HSPF and HSPF2, correspond to different evaluation methods. For a technical comparison, a quotation, or an eligibility check for a program, we always recommend working with \u003cstrong\u003ethe exact combination of units and the corresponding AHRI reference\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e24,000 BTU does not mean constant operation at 24,000 BTU\u003c\/h3\u003e\n\u003cp\u003eThe main advantage of an inverter system is its ability to modulate.\u003c\/p\u003e\n\u003cp\u003eThe brochure indicates a cooling range of approximately \u003cstrong\u003e6,800 to 25,000 BTU\/h\u003c\/strong\u003e. In heating mode, the published range is \u003cstrong\u003e9,000 to 28,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation is particularly relevant during the shoulder-season days of September, October, April, or May in \u003cstrong\u003eMontreal and Greater Montreal\u003c\/strong\u003e. A properly sized heat pump can reduce its output instead of operating only in full-capacity on-off cycles.\u003c\/p\u003e\n\u003cp\u003eIn a home where the heating load is relatively low for much of the season, this can promote more stable operation that is better suited to the actual demand.\u003c\/p\u003e\n\u003cp\u003eIn cooling mode, the published rated electrical power is \u003cstrong\u003e1,805 W\u003c\/strong\u003e, with an approximate range of 750 to 2,700 W. In heating mode, the rated electrical input is listed as \u003cstrong\u003e2,150 W\u003c\/strong\u003e, with modulation of approximately 660 to 2,600 W. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese values clearly illustrate why we prefer to analyze an inverter system as a modulating unit rather than as a simple “2-ton” machine.\u003c\/p\u003e\n\u003ch3\u003eAt -15 °C, heating capacity remains an essential figure\u003c\/h3\u003e\n\u003cp\u003eFor a heat pump intended for Quebec, the rated capacity at mild temperatures is less informative than its capacity when temperatures drop.\u003c\/p\u003e\n\u003cp\u003eThe technical documentation indicates, among other things:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eOutdoor temperature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003ePublished heating capacity\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e8.3 °C \/ 47 °F\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24,000 BTU\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-8.3 °C \/ 17 °F\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13,000 BTU\/h in the brochure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-15 °C \/ 5 °F\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e23,000 BTU\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-20 °C \/ -4 °F\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e19,000 BTU\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe brochure also indicates a heating operating range down to \u003cstrong\u003e-4 °F, or approximately -20 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor its part, the AirGreen specification sheet lists \u003cstrong\u003e21,000 BTU at -15 °C\u003c\/strong\u003e and approximately \u003cstrong\u003e17,000 BTU at -8 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThese values should not be read as though they all came from the same test point. Certification conditions, operating speed, and measurement points may differ. That is precisely why, at AirGreen, we look at the \u003cstrong\u003eperformance curve and documentation for the exact combination\u003c\/strong\u003e rather than a single isolated number.\u003c\/p\u003e\n\u003ch3\u003eOperation at -20 °C does not mean “cold-climate” certification\u003c\/h3\u003e\n\u003cp\u003eThis is one of the most important distinctions of this SENVILLE.\u003c\/p\u003e\n\u003cp\u003eThe heat pump can operate in heating mode down to approximately \u003cstrong\u003e-20 °C\u003c\/strong\u003e, but the AirGreen specification sheet identifies it as:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCold Climate: no\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eENERGY STAR: no\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIts winter operating range must therefore not be interpreted as ENERGY STAR cold-climate certification.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner in \u003cstrong\u003eLaval, Boucherville, Longueuil, Terrebonne, Blainville, or Montreal\u003c\/strong\u003e who selects a system based on a subsidy, this difference is important. A heat pump that still produces heat at low temperatures is not automatically eligible for the same programs as a combination officially recognized as \u003cstrong\u003eENERGY STAR cold climate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWe therefore recommend checking whether a specific model qualifies before signing a contract, rather than including an assumed subsidy in the project budget.\u003c\/p\u003e\n\u003ch3\u003e830 CFM: very important information for the ductwork\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE indoor unit provides \u003cstrong\u003e830 CFM at high speed and 420 CFM at low speed\u003c\/strong\u003e. The airflow and sound-level table appears clearly on page 4 of the technical documentation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a 2-ton central unit, 830 CFM corresponds to approximately \u003cstrong\u003e415 CFM per ton\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis value falls within a very common range for a residential central system and mainly shows why the ductwork must be checked before replacing an old unit.\u003c\/p\u003e\n\u003cp\u003eWe regularly encounter homes where the equipment can theoretically move 800 CFM or more, but where the existing network creates too much restriction: undersized return air, an overly restrictive filter, crushed ducts, a closed damper, or a poorly designed transition.\u003c\/p\u003e\n\u003cp\u003eUnder these conditions, installing a new heat pump without examining the ductwork can lead to air noise, insufficient airflow in certain rooms, and operation that does not reflect the performance indicated in the documentation.\u003c\/p\u003e\n\u003ch3\u003eThe 1,200 sq. ft. area is only an indication\u003c\/h3\u003e\n\u003cp\u003eSenville presents this system as being suitable for a house, condo, or apartment of up to approximately \u003cstrong\u003e1,200 sq. ft.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we never turn this marketing indication into a sizing rule.\u003c\/p\u003e\n\u003cp\u003eTwo 1,200 sq. ft. properties can have radically different heating loads.\u003c\/p\u003e\n\u003cp\u003eA well-insulated bungalow on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, built recently and equipped with high-performance windows, may require much less heating than a duplex of comparable size in \u003cstrong\u003eMontréal\u003c\/strong\u003e with older walls, numerous windows, and significant air infiltration.\u003c\/p\u003e\n\u003cp\u003eA central heat pump must be selected according to several factors:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ebuilding heat losses\u003c\/strong\u003e, insulation quality, and airtightness;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ewindow area and orientation\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003educt configuration and return-air dimensions;\u003c\/li\u003e\n\u003cli\u003eserved floor and ceiling height;\u003c\/li\u003e\n\u003cli\u003esummer cooling load;\u003c\/li\u003e\n\u003cli\u003eauxiliary heating capacity;\u003c\/li\u003e\n\u003cli\u003eavailable electrical capacity;\u003c\/li\u003e\n\u003cli\u003eapplicable outdoor design temperature for the area.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is the only list you really need to keep in mind before automatically converting square footage into tons of air conditioning.\u003c\/p\u003e\n\u003ch3\u003eWhy oversizing remains a mistake even with an inverter\u003c\/h3\u003e\n\u003cp\u003eThis SENVILLE’s compressor is a \u003cstrong\u003eTwin-Rotary DC Inverter\u003c\/strong\u003e, model KTM240D57UMT from GMCC. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe inverter provides more flexibility than a traditional single-speed compressor, but it does not make sizing unimportant.\u003c\/p\u003e\n\u003cp\u003eA system that is too large for the actual load can still have periods when it quickly reaches the requested temperature. In summer, this can reduce the time available for dehumidification. Conversely, a system undersized relative to the heat losses may require significant auxiliary heating during cold periods.\u003c\/p\u003e\n\u003cp\u003eWe therefore seek the best balance among \u003cstrong\u003ecapacity, modulation, comfort, and use of backup heating\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eTop Discharge: why the outdoor unit’s design changes the installation\u003c\/h3\u003e\n\u003cp\u003eThe term \u003cstrong\u003eTop Discharge\u003c\/strong\u003e means that the outdoor fan primarily discharges air upward.\u003c\/p\u003e\n\u003cp\u003eThis format is familiar in the world of North American central systems and makes it possible to have a relatively compact outdoor unit at ground level.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures approximately \u003cstrong\u003e29.14 × 29.14 × 25 in\u003c\/strong\u003e and weighs approximately \u003cstrong\u003e143 lb net\u003c\/strong\u003e. Its maximum published outdoor airflow is \u003cstrong\u003e2,800 CFM\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAn airflow of 2,800 CFM must not be blocked by a structure placed too close above the unit.\u003c\/p\u003e\n\u003cp\u003eDuring our installations in \u003cstrong\u003eMontréal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/strong\u003e, we must therefore consider an element that product photos do not always show: the actual airflow around the condenser.\u003c\/p\u003e\n\u003cp\u003eA unit wedged between three walls, beneath a very low balcony, or in a location where snow accumulates heavily does not benefit from the same conditions as a properly clear installation.\u003c\/p\u003e\n\u003ch3\u003eAn outdoor unit rated at 58 dB(A)\u003c\/h3\u003e\n\u003cp\u003eThe published outdoor sound level is \u003cstrong\u003e58 dB(A)\u003c\/strong\u003e. The indoor unit is rated at approximately \u003cstrong\u003e38 dB(A) at low speed and 42 dB(A) at high speed\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a central system, however, the noise perceived in the home depends on much more than the equipment’s sound level.\u003c\/p\u003e\n\u003cp\u003eDuct sizing, air speed, the return grille, the proximity of the furnace or fan coil to occupied rooms, and vibrations transmitted to the structure can considerably alter the actual experience.\u003c\/p\u003e\n\u003cp\u003eQuiet equipment connected to an undersized return-air duct can become noisy at the register. That is why we consider the \u003cstrong\u003edistribution network as part of the system\u003c\/strong\u003e, rather than as a secondary element.\u003c\/p\u003e\n\u003ch3\u003eA tall, narrow indoor unit\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately \u003cstrong\u003e21.03 in × 21.03 in × 49.22 in\u003c\/strong\u003e and weighs \u003cstrong\u003e125 lb net\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis format can facilitate certain replacements in a relatively narrow mechanical room, but the available space must be measured precisely.\u003c\/p\u003e\n\u003cp\u003eIn the basements of homes in \u003cstrong\u003eMontreal or Longueuil\u003c\/strong\u003e, we often have to work around low plumbing, limited ceiling height, a nearby water heater, or ductwork built around the old unit.\u003c\/p\u003e\n\u003cp\u003eA few inches can make the difference between a clean installation and an unnecessarily complex duct transition.\u003c\/p\u003e\n\u003ch2\u003eWhat we check at AirGreen before installing this SENVILLE R-32 central system\u003c\/h2\u003e\n\u003ch3\u003eThe ductwork comes before the final equipment selection\u003c\/h3\u003e\n\u003cp\u003eWhen replacing a central system, a common mistake is to take the capacity of the old unit and automatically order the same capacity.\u003c\/p\u003e\n\u003cp\u003eWe prefer to check whether that previous capacity was actually suitable for the building.\u003c\/p\u003e\n\u003cp\u003eA representative scenario we frequently encounter is a house that has been equipped with a 2.5- or 3-ton air conditioner for fifteen or twenty years. The homeowner then assumes that a new heat pump must necessarily have the same capacity.\u003c\/p\u003e\n\u003cp\u003eAfter inspection, it sometimes turns out that the ducts were not designed to move the airflow corresponding to that capacity properly. In that case, repeating the same sizing may simply reproduce the existing problems.\u003c\/p\u003e\n\u003cp\u003eWith the \u003cstrong\u003eSENVILLE 2-ton unit and its 830 CFM\u003c\/strong\u003e, we therefore check the power supply, returns, and distribution before confirming that this capacity is suitable.\u003c\/p\u003e\n\u003ch3\u003eThe electrical data are relatively precise\u003c\/h3\u003e\n\u003cp\u003eThe brochure specifies a \u003cstrong\u003e208\/230 V, 60 Hz, single-phase\u003c\/strong\u003e power supply.\u003c\/p\u003e\n\u003cp\u003eFor the outdoor unit:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMCA: 19 A\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMOP: 20 A\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor the indoor unit:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMCA: 5 A\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMOP: 15 A\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese data are published in the electrical table in the Senville documentation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe final circuit must naturally be established according to the actual installation and applicable electrical requirements. For a central replacement, we also check the auxiliary heating, since it can represent a much greater electrical load than the heat pump itself.\u003c\/p\u003e\n\u003ch3\u003eAuxiliary heating must not be overlooked\u003c\/h3\u003e\n\u003cp\u003eSince this combination is advertised for operation down to approximately \u003cstrong\u003e-20 °C\u003c\/strong\u003e, the heating strategy for temperatures below this limit must be planned.\u003c\/p\u003e\n\u003cp\u003eEven before reaching -20 °C, the home's actual heating needs may also exceed the heat pump's available instantaneous capacity.\u003c\/p\u003e\n\u003cp\u003eIn a Quebec central installation, the role of the electric element or another backup heating system must therefore be incorporated into the sizing and controls.\u003c\/p\u003e\n\u003cp\u003eThe goal is not necessarily to prevent auxiliary heating from operating completely. The goal is to avoid calling on it unnecessarily when the heat pump can still efficiently provide most of the required heat.\u003c\/p\u003e\n\u003ch3\u003eR-32 and 3\/8 in. – 3\/4 in. piping\u003c\/h3\u003e\n\u003cp\u003eSENVILLE uses \u003cstrong\u003eR-32\u003c\/strong\u003e and a refrigerant line measuring \u003cstrong\u003e3\/8 in. for liquid and 3\/4 in. for gas\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe brochure also specifies:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003emaximum piping length: 164 ft \/ 50 m\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003emaximum height difference: 82 ft \/ 25 m\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003efactory refrigerant charge: 2.9 kg \/ 102.3 oz\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003epublished additional charge: 0.52 oz per foot \/ 48 g per metre\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese figures are particularly useful in installations where the mechanical unit is located in the basement and the outdoor unit must be positioned far from the mechanical room.\u003c\/p\u003e\n\u003cp\u003eHowever, an authorized maximum length does not mean that every 150 ft installation is automatically desirable. The more complex the route, the more important planning the piping, oil, charge, and commissioning becomes.\u003c\/p\u003e\n\u003ch3\u003eVacuuming and refrigerant charge remain critical\u003c\/h3\u003e\n\u003cp\u003eAn inverter system can adjust its capacity, but it cannot correct poor refrigeration installation.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, installing a central heat pump requires, among other things, rigorous attention to connections, leak-tightness, evacuation, and the proper refrigerant charge.\u003c\/p\u003e\n\u003cp\u003eAn incorrect charge can affect capacity, efficiency, pressures, and compressor reliability.\u003c\/p\u003e\n\u003cp\u003eWith \u003cstrong\u003eR-32\u003c\/strong\u003e, it is also necessary to use procedures and tools compatible with the refrigerant installed and comply with the requirements applicable to the product.\u003c\/p\u003e\n\u003ch3\u003eThe indoor unit’s drainage deserves as much attention as the refrigerant\u003c\/h3\u003e\n\u003cp\u003eIn air conditioning, a central coil can remove a significant amount of moisture from the air.\u003c\/p\u003e\n\u003cp\u003eThe condensate pan, drain, and slope of the line must therefore be properly arranged. In a basement installation, a drainage problem may remain unnoticed until water reaches the floor or nearby materials.\u003c\/p\u003e\n\u003cp\u003eWe verify this element during the planning stage rather than after commissioning.\u003c\/p\u003e\n\u003ch3\u003eA heat pump best suited to projects where the ductwork already exists\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003eSENVILLE 24,000 BTU central system\u003c\/strong\u003e is particularly well suited to a home that already has a functional central distribution system.\u003c\/p\u003e\n\u003cp\u003eIt can then serve as the basis for replacing an old central air conditioner or an old heat pump, provided that:\u003c\/p\u003e\n\u003cp\u003ethe ductwork is suitable, the return air can provide the required airflow, the electrical supply is sufficient, and the building load genuinely corresponds to a 2-ton central system.\u003c\/p\u003e\n\u003cp\u003eFor a home with no ductwork at all, the project becomes very different. It is then necessary to compare the cost and impact of installing a complete duct network with other HVAC solutions, such as a wall-mounted heat pump, a multi-zone system, or a ducted system designed specifically for the property.\u003c\/p\u003e\n\u003ch3\u003eThe mistakes we seek to avoid\u003c\/h3\u003e\n\u003cp\u003eFor this type of project, the choice of brand is only one part of the decision. A properly installed SENVILLE can deliver a very different result from the same model installed without checking the ductwork, load, or outdoor clearances.\u003c\/p\u003e\n\u003cp\u003eWe therefore pay particular attention to compatibility between \u003cstrong\u003ethe heat pump, the house, and the existing distribution system\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThat is also why we prefer explaining to a homeowner that a 2-ton system is not appropriate for their building rather than simply installing the requested capacity without analysis.\u003c\/p\u003e\n\u003ch3\u003e10-10-0 warranty and additional coverage\u003c\/h3\u003e\n\u003cp\u003eThe warranty indicated by AirGreen is:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years on the compressor\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e10 years on parts\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e0 years of manufacturer labor coverage\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAn \u003cstrong\u003eadditional warranty\u003c\/strong\u003e may be available according to the terms applicable to the project.\u003c\/p\u003e\n\u003cp\u003eThis distinction is important. A part covered by the manufacturer does not automatically mean that the costs of travel, diagnosis, and replacing that part are included for ten years.\u003c\/p\u003e\n\u003cp\u003eWe clarify these elements before installation so the homeowner knows exactly what is covered.\u003c\/p\u003e\n\u003ch3\u003eOur technical opinion on this SENVILLE Top Discharge 2-ton system\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENTC-24TD\u003c\/strong\u003e has several features of interest for a central replacement: inverter modulation, a compact outdoor format, \u003cstrong\u003e830 CFM\u003c\/strong\u003e, heating operation down to approximately \u003cstrong\u003e-20 °C\u003c\/strong\u003e, piping that allows relatively long runs, and a published outdoor sound level of \u003cstrong\u003e58 dB(A)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIts profile must nevertheless be properly understood.\u003c\/p\u003e\n\u003cp\u003eThis is not a heat pump identified as \u003cstrong\u003eCold Climate\u003c\/strong\u003e, and it is not listed as \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e in the provided specifications. It should therefore not be chosen solely because it can operate at -20 °C.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner in \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e, the real question is whether this 24,000 BTU combination matches the building’s heat loss, ductwork, and auxiliary heating strategy.\u003c\/p\u003e\n\u003cp\u003eThis analysis determines whether the system will actually be suitable for the home.\u003c\/p\u003e\n\u003ch3\u003eSENVILLE central heat pump installation in Montreal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we can inspect the existing configuration, ductwork dimensions, mechanical space, return air, electrical capacity, and outdoor unit location on-site before confirming the selection.\u003c\/p\u003e\n\u003cp\u003eFor a \u003cstrong\u003eSENVILLE R32 Top Discharge 2-ton central heat pump\u003c\/strong\u003e, this step helps prevent the most costly post-installation problems: improper airflow, an incorrectly sized system, an improperly positioned outdoor unit, or poorly integrated auxiliary heating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen for a quote, to confirm whether the 24,000 BTU SENVILLE SENTC-24TD is suitable for your property, and to schedule professional installation in Montreal, Laval, Longueuil, the North Shore, or the South Shore.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119984193828,"sku":"SENTC-24TD-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/01_THERMOPOMPE_CENTRALE_SENVILLE_R32_TOP_DISCHARGE_2_TONNES_24000BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789056291"},{"product_id":"thermopompe-centrale-senville-r32-top-discharge-3-tonnes-36000-btu","title":"SENVILLE R32 Top Discharge Central Heat Pump | 3 Tons - 36000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 3-ton Top Discharge central unit: a configuration that deserves to be evaluated as a complete system\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENTC-36TD\u003c\/strong\u003e is a \u003cstrong\u003e3-ton\u003c\/strong\u003e central heat pump designed for properties equipped with a ductwork system. Its outdoor unit features a \u003cstrong\u003eTop Discharge\u003c\/strong\u003e configuration, with air discharged from the top rather than the sides. Senville documentation specifically identifies this product as a 3-ton central heat pump with top discharge, under the reference \u003cstrong\u003eSENTC-36TD\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor an installation in \u003cstrong\u003eMontreal, Laval, Longueuil, on the North Shore or the South Shore\u003c\/strong\u003e, this outdoor configuration deserves particular attention. The Top Discharge format can facilitate certain layouts when side clearance is limited, but the final quality of a project depends much more on sizing, airflow, piping, the ductwork system, and the supplemental-heating strategy than on the shape of the outdoor unit.\u003c\/p\u003e\n\u003cp\u003eThe configuration presented by AirGreen includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eoutdoor unit: SENTC-36TD-OG\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eindoor unit: SENTC-36TD-IG\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003enominal capacity: 36,000 BTU\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAHRI: 218338224\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eR-32 refrigerant\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003emaximum indoor airflow: 1,110 CFM\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e220 V power supply\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003erefrigerant piping: 3\/8 in – 3\/4 in\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional Wi-Fi\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eheating operation indicated down to \u003cstrong\u003e-20 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eENERGY STAR: no\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCold-climate classification: no\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis last point is important. A heat pump capable of operating at \u003cstrong\u003e-20 °C\u003c\/strong\u003e is not automatically a heat pump certified as a “cold-climate” model. For a Quebec homeowner, it is therefore necessary to distinguish the minimum operating temperature from the energy certification and, above all, from the actual heating capacity available when temperatures drop.\u003c\/p\u003e\n\u003ch3\u003eEfficiency data to be read carefully: SEER, SEER2, HSPF, and HSPF2\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen technical sheet provided for this model indicates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSEER: 19.3\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER: 11.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF: 8.1\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe attached Senville documentation, for its part, presents slightly different values for the SENTC-36TD:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 18.6\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 11.7\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region 4: 9.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating COP: 3.20 W\/W\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is important not to automatically mix up SEER and SEER2 ratings, or HSPF and HSPF2. Testing methods have evolved, and the figures are not necessarily directly interchangeable.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, when we prepare a quote or verify equipment eligibility for a specific project, we rely on the \u003cstrong\u003eexact matching of the units and their AHRI number\u003c\/strong\u003e, here \u003cstrong\u003e218338224\u003c\/strong\u003e, rather than on an isolated figure from a commercial page.\u003c\/p\u003e\n\u003cp\u003eThis method avoids a common mistake: comparing two heat pumps simply because one displays a higher number, when the rating standards, unit combinations, or test conditions are not identical.\u003c\/p\u003e\n\u003ch3\u003e36,000 BTU does not mean that the compressor always operates at 36,000 BTU\u003c\/h3\u003e\n\u003cp\u003eThe technical documentation indicates a \u003cstrong\u003enominal heating capacity of 36,000 BTU\/h\u003c\/strong\u003e, with a modulating range from \u003cstrong\u003e11,000 to 39,000 BTU\/h\u003c\/strong\u003e. In cooling mode, it indicates a nominal capacity of 34,000 BTU\/h and a range of \u003cstrong\u003e13,000 to 38,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe compressor is identified as a \u003cstrong\u003eTwin-Rotary DC Inverter\u003c\/strong\u003e, model KTM240D57UMT from GMCC. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation is important in a home.\u003c\/p\u003e\n\u003cp\u003eA conventional heat pump with more pronounced on-off operation can quickly reach its setpoint, shut down, and then restart when the temperature deviates sufficiently. With inverter technology, the system can adjust its output more closely to the building's thermal load.\u003c\/p\u003e\n\u003cp\u003eFor the homeowner, this can help provide:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emore consistent temperatures;\u003c\/li\u003e\n\u003cli\u003elonger operating periods at reduced capacity;\u003c\/li\u003e\n\u003cli\u003ebetter comfort management between cycles;\u003c\/li\u003e\n\u003cli\u003efewer sudden temperature fluctuations;\u003c\/li\u003e\n\u003cli\u003ebetter suited to days when the house needs only a fraction of the maximum capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHowever, the actual benefit depends on the \u003cstrong\u003esizing of the central heat pump\u003c\/strong\u003e. A 3-ton system installed in a house that only requires two tons does not automatically become a better solution simply because it has an inverter compressor.\u003c\/p\u003e\n\u003ch3\u003eWinter performance must be analyzed before removing an old furnace or reducing supplemental heating.\u003c\/h3\u003e\n\u003cp\u003eThis is probably the most important point for a homeowner in Greater Montreal.\u003c\/p\u003e\n\u003cp\u003eIn the AirGreen information provided for this configuration, we have:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e21,000 BTU\/h at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e22,000 BTU\/h at -15 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eoperating range down to \u003cstrong\u003e-20 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHowever, the attached brochure presents another set of values. It indicates a heating capacity of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e36,000 BTU\/h at 47 °F\u003c\/strong\u003e, or approximately 8.3 °C;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e17,500 BTU\/h at 17 °F\u003c\/strong\u003e, or approximately -8.3 °C;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e27,000 BTU\/h at 5 °F\u003c\/strong\u003e, or approximately -15 °C;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25,000 BTU\/h at -4 °F\u003c\/strong\u003e, or approximately -20 °C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt also gives a heating operating range down to \u003cstrong\u003e-4 °F\u003c\/strong\u003e, or approximately \u003cstrong\u003e-20 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese values therefore do not correspond perfectly to the figures already shown on the AirGreen product page.\u003c\/p\u003e\n\u003cp\u003eRather than conceal this difference, we consider it a precise illustration of why a professional should never size a central system based on a single line found in commercial documentation. Before installation, we verify the exact equipment combination, the applicable technical documentation, and the AHRI data used for the project.\u003c\/p\u003e\n\u003cp\u003eA difference of several thousand BTUs at -8 °C or -15 °C can change the calculation of the auxiliary heating required during the winter.\u003c\/p\u003e\n\u003ch3\u003eThis model is not classified as “cold climate”\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen data clearly indicate:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCOLD CLIMATE: No\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR: No\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt is therefore important not to present this SENTC-36TD as the direct equivalent of a cold-climate-certified central heat pump simply because it operates down to -20 °C.\u003c\/p\u003e\n\u003cp\u003eA unit may continue operating at a low outdoor temperature while providing capacity that is significantly lower than its rated capacity.\u003c\/p\u003e\n\u003cp\u003eIn a Quebec home, the right question is therefore not simply: “Down to what temperature does it operate?”\u003c\/p\u003e\n\u003cp\u003eWe focus mainly on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003elow-temperature capacity;\u003c\/li\u003e\n\u003cli\u003ethe home's heat loss;\u003c\/li\u003e\n\u003cli\u003ebackup-heating capacity;\u003c\/li\u003e\n\u003cli\u003econtrol logic;\u003c\/li\u003e\n\u003cli\u003eoperating cost;\u003c\/li\u003e\n\u003cli\u003eavailable electrical capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis combination determines whether the home will remain comfortable during a cold spell in \u003cstrong\u003eMontréal, Laval, or Longueuil\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e1,110 CFM: airflow suitable for a 3-ton central system, provided the ductwork can carry it\u003c\/h3\u003e\n\u003cp\u003eThe SENTC-36TD-IG indoor unit provides:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e1,110 CFM at high speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e520 CFM at low speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe documentation also indicates an indoor sound level of \u003cstrong\u003e50 dB(A) at high speed\u003c\/strong\u003e and \u003cstrong\u003e38 dB(A) at low speed\u003c\/strong\u003e. For the outdoor unit, the maximum airflow is \u003cstrong\u003e2,800 CFM\u003c\/strong\u003e, with a stated sound level of \u003cstrong\u003e58 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1,110 CFM figure deserves particular attention during a replacement.\u003c\/p\u003e\n\u003cp\u003eIn several central-system installations we assess at AirGreen, the issue is not necessarily the capacity of the new heat pump. The existing ductwork may be the actual limiting factor.\u003c\/p\u003e\n\u003cp\u003eA unit designed to move approximately 1,100 CFM will not perform at its best if the house has:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ean undersized return-air system;\u003c\/li\u003e\n\u003cli\u003ea filter that is too restrictive;\u003c\/li\u003e\n\u003cli\u003ecrushed flexible ducts;\u003c\/li\u003e\n\u003cli\u003eseveral closed registers;\u003c\/li\u003e\n\u003cli\u003ea system designed for a much smaller capacity;\u003c\/li\u003e\n\u003cli\u003ea major restriction at the coil or plenum.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDuct noise is not always heat pump noise\u003c\/h3\u003e\n\u003cp\u003eA homeowner can choose a relatively quiet indoor unit and still hear significant airflow from certain grilles.\u003c\/p\u003e\n\u003cp\u003eThe reason is often related to the \u003cstrong\u003eair velocity in the ducts\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSuppose an old system moved significantly less air and a new 3-ton central unit now has to deliver up to 1,110 CFM. If the ducts are not the necessary size, air velocity increases. Noise may then occur at the supply or return grilles.\u003c\/p\u003e\n\u003cp\u003eWe therefore check the distribution system before concluding that a \u003cstrong\u003e36,000 BTU\u003c\/strong\u003e unit is automatically compatible with a home simply because the old unit was advertised as a three-ton system.\u003c\/p\u003e\n\u003ch3\u003eThe Top Discharge format really changes how the outdoor location is selected\u003c\/h3\u003e\n\u003cp\u003eThe SENTC-36TD-OG outdoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e29.14 in × 29.14 in × 25 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand its listed net weight is \u003cstrong\u003e143 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe indoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e21.03 in × 21.03 in × 49.22 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith a net weight of \u003cstrong\u003e137 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe nearly square shape of the outdoor unit is very different from that of a conventional wall-mounted heat pump with a side-discharge fan.\u003c\/p\u003e\n\u003cp\u003eThe fan expels air through the top. This can be an advantage in some spaces where you want to avoid directing a strong airflow horizontally toward a patio, fence, or walkway.\u003c\/p\u003e\n\u003cp\u003eSenville also indicates that this top-discharge design is particularly well suited to installations where available space is more limited. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBut “more compact” does not mean that the unit can be enclosed.\u003c\/p\u003e\n\u003cp\u003eThe top fan must remain unobstructed. Outside a Quebec home, we must also account for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003esnow accumulation;\u003c\/li\u003e\n\u003cli\u003erequired clearances;\u003c\/li\u003e\n\u003cli\u003ewater produced during defrosting;\u003c\/li\u003e\n\u003cli\u003ethe location of downspouts;\u003c\/li\u003e\n\u003cli\u003ethe proximity of walls;\u003c\/li\u003e\n\u003cli\u003ethe access required for maintenance;\u003c\/li\u003e\n\u003cli\u003emunicipal or condominium restrictions;\u003c\/li\u003e\n\u003cli\u003ethe distance from bedrooms and windows.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAn installation that is too low or in an area where snow accumulates quickly can become problematic during the winter.\u003c\/p\u003e\n\u003ch2\u003eWhat we check at AirGreen before installing a SENVILLE SENTC-36TD in Montreal, Laval, or on either shore\u003c\/h2\u003e\n\u003ch3\u003eA 3\/8 in–3\/4 in line set that must be checked before replacement\u003c\/h3\u003e\n\u003cp\u003eThe configuration requires refrigerant connections of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e3\/8 in for liquid\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e3\/4 in for gas\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSenville documentation confirms these dimensions and indicates a maximum piping length of up to \u003cstrong\u003e246 ft (75 m)\u003c\/strong\u003e, as well as a maximum elevation difference of \u003cstrong\u003e98.4 ft (30 m)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt also indicates a factory refrigerant charge of \u003cstrong\u003e2.9 kg, or 102.3 oz of R-32\u003c\/strong\u003e, as well as a specified additional charge of \u003cstrong\u003e0.52 oz\/ft (48 g\/m)\u003c\/strong\u003e when installation conditions require it. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor us, these figures have a very concrete consequence.\u003c\/p\u003e\n\u003cp\u003eWhen replacing an old \u003cstrong\u003ecentral heat pump\u003c\/strong\u003e, we never assume that an existing line can be reused merely because it appears to be in good condition.\u003c\/p\u003e\n\u003cp\u003eWe check:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eits diameter;\u003c\/li\u003e\n\u003cli\u003eits length;\u003c\/li\u003e\n\u003cli\u003eits condition;\u003c\/li\u003e\n\u003cli\u003eits routing;\u003c\/li\u003e\n\u003cli\u003ethe new equipment requirements;\u003c\/li\u003e\n\u003cli\u003eits compatibility with the refrigerant and the planned installation procedure.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eAn incorrectly sized line can compromise compressor operation, capacity, and long-term reliability.\u003c\/p\u003e\n\u003ch3\u003eR-32 requires installation in accordance with the manufacturer’s requirements\u003c\/h3\u003e\n\u003cp\u003eThe SENTC-36TD uses \u003cstrong\u003eR-32\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eRefrigerant must never be treated as a secondary detail during an HVAC replacement. The refrigerant type affects handling, commissioning, charging, and servicing procedures.\u003c\/p\u003e\n\u003cp\u003eThe documentation also specifies a flared refrigerant connection and identifies an expansion system with \u003cstrong\u003eoutdoor-side EXV \/ indoor-side piston\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we place as much importance on the quality of commissioning as on the choice of the equipment itself. A properly selected heat pump can be compromised by a poor evacuation procedure, an incorrect charge, or an unbalanced duct network.\u003c\/p\u003e\n\u003ch3\u003eElectrical: MCA of 24 A and MOP of 30 A for the outdoor unit\u003c\/h3\u003e\n\u003cp\u003eFor the outdoor unit, the data indicates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epower supply: \u003cstrong\u003e208\/230 V, 60 Hz, single-phase\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMCA: 24 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMOP: 30 A\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor the indoor unit:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMCA: 5 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMOP: 15 A\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe documentation also specifies a compressor RLA of \u003cstrong\u003e9.45 A\u003c\/strong\u003e, an outdoor motor of \u003cstrong\u003e2.3 A \/ 200 W\u003c\/strong\u003e, and an indoor motor of \u003cstrong\u003e3.6 A \/ 375 W\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eMCA\u003c\/strong\u003e, or minimum circuit ampacity, helps determine the required electrical sizing. The \u003cstrong\u003eMOP\u003c\/strong\u003e represents the maximum allowable protection specified for the equipment.\u003c\/p\u003e\n\u003cp\u003eThese data do not automatically include the full potential load of auxiliary heating added to the system. In a property with a heavily loaded electrical panel, this assessment must be completed before finalizing the configuration.\u003c\/p\u003e\n\u003ch3\u003eA scenario we regularly encounter during a central replacement\u003c\/h3\u003e\n\u003cp\u003eLet’s consider a typical situation encountered during our assessments on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA home has an old 3-ton central heat pump. The owner wants to replace it with a new 3-ton unit and assumes the project will be a direct swap.\u003c\/p\u003e\n\u003cp\u003eDuring the inspection, several factors may nevertheless emerge:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe existing gas line is not 3\/4 in.;\u003c\/li\u003e\n\u003cli\u003ethe return air is too small for approximately 1,100 CFM;\u003c\/li\u003e\n\u003cli\u003ethe old indoor unit is shorter;\u003c\/li\u003e\n\u003cli\u003ethe electrical panel is already heavily loaded;\u003c\/li\u003e\n\u003cli\u003ethe outdoor unit is located beneath a downspout;\u003c\/li\u003e\n\u003cli\u003ethe overhead clearance is not suitable for a new Top Discharge unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn this context, ordering the heat pump before measuring the installation could create several problems on the job site.\u003c\/p\u003e\n\u003cp\u003eWe therefore prefer to treat the system as a whole: \u003cstrong\u003eheat pump, ductwork, electrical, piping, drainage, thermostat, and outdoor unit location\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eAn indoor unit nearly 50 inches high: a detail that can change the project\u003c\/h3\u003e\n\u003cp\u003eAt approximately \u003cstrong\u003e49.22 inches in height\u003c\/strong\u003e, the indoor unit must be compared with the available mechanical-room space.\u003c\/p\u003e\n\u003cp\u003eIn some basements in \u003cstrong\u003eMontreal or Longueuil\u003c\/strong\u003e, a few inches can make all the difference when it is necessary to maintain:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea properly constructed plenum;\u003c\/li\u003e\n\u003cli\u003eaccess to the filter;\u003c\/li\u003e\n\u003cli\u003ethe space required for the drain;\u003c\/li\u003e\n\u003cli\u003eservice clearances;\u003c\/li\u003e\n\u003cli\u003ethe transition to the existing ductwork.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInstalling a central unit therefore involves more than simply checking its width.\u003c\/p\u003e\n\u003cp\u003eThe complete assembly must be considered once the unit is connected to the return and supply air.\u003c\/p\u003e\n\u003ch3\u003eWhy a 3-ton unit may be too large for some homes\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e36,000 BTU\u003c\/strong\u003e figure should never be chosen based solely on living area.\u003c\/p\u003e\n\u003cp\u003eA newer, well-insulated home may have a significantly lower heating and cooling load than an older home of comparable size.\u003c\/p\u003e\n\u003cp\u003eAmong the factors we analyze:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003eairtightness;\u003c\/li\u003e\n\u003cli\u003ethe number of floors;\u003c\/li\u003e\n\u003cli\u003ewindows;\u003c\/li\u003e\n\u003cli\u003esolar exposure;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003ethe basement;\u003c\/li\u003e\n\u003cli\u003einternal gains;\u003c\/li\u003e\n\u003cli\u003ethe ductwork;\u003c\/li\u003e\n\u003cli\u003ethe calculated heat losses.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOversizing can result in cycles that are too short under certain conditions, reduce summer dehumidification, and make balancing more difficult.\u003c\/p\u003e\n\u003cp\u003eConversely, an undersized unit may require auxiliary heating too frequently.\u003c\/p\u003e\n\u003ch3\u003eIn air conditioning, modulation is also important\u003c\/h3\u003e\n\u003cp\u003eThe brochure indicates a cooling range of \u003cstrong\u003e13,000 to 38,000 BTU\/h\u003c\/strong\u003e, with a rated capacity of \u003cstrong\u003e34,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt also lists a rated cooling consumption of \u003cstrong\u003e2,906 W\u003c\/strong\u003e, adjustable between \u003cstrong\u003e460 and 3,600 W\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis variable capacity allows the compressor to operate at different levels as needed.\u003c\/p\u003e\n\u003cp\u003eIn Montreal, dehumidification is an important aspect of summer comfort. A home at 23 °C can still feel uncomfortable if indoor humidity remains high. Sizing and airflow settings therefore play a role just as important as the temperature displayed on the thermostat.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi as an option: useful, but secondary to the installation\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENTC-36TD\u003c\/strong\u003e offers \u003cstrong\u003eoptional Wi-Fi\u003c\/strong\u003e according to the AirGreen data.\u003c\/p\u003e\n\u003cp\u003eA connected control can facilitate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eremote adjustment;\u003c\/li\u003e\n\u003cli\u003eprogramming;\u003c\/li\u003e\n\u003cli\u003emanaging a secondary residence;\u003c\/li\u003e\n\u003cli\u003eadjusting the settings while away.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHowever, we believe connectivity should remain a secondary criterion compared with sizing, airflow, and installation quality. No smart thermostat can correct an undersized return duct or a poorly selected heat pump.\u003c\/p\u003e\n\u003ch3\u003eNo ENERGY STAR certification indicated: an important consideration for subsidies\u003c\/h3\u003e\n\u003cp\u003eThe information provided for this model indicates \u003cstrong\u003eENERGY STAR: No\u003c\/strong\u003e and \u003cstrong\u003eCOLD CLIMATE: No\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eNo specific subsidy is indicated in the data provided for this configuration.\u003c\/p\u003e\n\u003cp\u003eFor a customer comparing several \u003cstrong\u003ecentral heat pumps in Laval, Montreal, Longueuil, on the North Shore or the South Shore\u003c\/strong\u003e, this factor can be decisive. A system with an attractive initial price does not necessarily represent the lowest net cost if another configuration qualifies for significant financial assistance.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore prefer to compare projects based on their overall cost and performance rather than simply on the equipment price.\u003c\/p\u003e\n\u003ch3\u003eManufacturer’s Warranty and Additional Warranty\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing indicates a \u003cstrong\u003e10-10-0 manufacturer’s warranty\u003c\/strong\u003e for this configuration and specifies that an \u003cstrong\u003eadditional warranty is available\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAs with any central heat pump, it is important to confirm the exact applicable terms at the time of purchase:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eparts coverage;\u003c\/li\u003e\n\u003cli\u003ecompressor coverage;\u003c\/li\u003e\n\u003cli\u003eregistration required;\u003c\/li\u003e\n\u003cli\u003eexclusions;\u003c\/li\u003e\n\u003cli\u003elabor;\u003c\/li\u003e\n\u003cli\u003eduration and terms of an additional warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA product warranty and an installation labor warranty should not be confused.\u003c\/p\u003e\n\u003ch3\u003eMaintenance: what really helps a 3-ton central system maintain its performance\u003c\/h3\u003e\n\u003cp\u003eA properly installed \u003cstrong\u003eR-32 central heat pump\u003c\/strong\u003e nevertheless requires regular maintenance.\u003c\/p\u003e\n\u003cp\u003eThe most useful checks include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ereplace or clean the filter according to its type;\u003c\/li\u003e\n\u003cli\u003ekeep air returns clear;\u003c\/li\u003e\n\u003cli\u003eavoid unnecessarily blocking multiple registers;\u003c\/li\u003e\n\u003cli\u003ekeep the outdoor unit free of leaves and debris;\u003c\/li\u003e\n\u003cli\u003emonitor for excessive ice buildup;\u003c\/li\u003e\n\u003cli\u003ekeep the top of the Top Discharge unit clear;\u003c\/li\u003e\n\u003cli\u003ehave the drainage checked;\u003c\/li\u003e\n\u003cli\u003ehave the coil and operating parameters inspected when necessary.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAn extremely dirty filter can reduce airflow. In a system capable of delivering \u003cstrong\u003e1,110 CFM\u003c\/strong\u003e, this restriction can have a tangible impact on comfort, noise, and system operation.\u003c\/p\u003e\n\u003ch3\u003eFor what type of project should the SENVILLE SENTC-36TD be considered?\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003e36,000 BTU SENVILLE R32 central heat pump\u003c\/strong\u003e may be suitable when:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea capacity of approximately three tons genuinely meets the building's needs;\u003c\/li\u003e\n\u003cli\u003ethe ductwork can accommodate the required airflow;\u003c\/li\u003e\n\u003cli\u003ea \u003cstrong\u003eTop Discharge\u003c\/strong\u003e configuration suits the available space;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e3\/8 in. – 3\/4 in.\u003c\/strong\u003e piping can be installed correctly;\u003c\/li\u003e\n\u003cli\u003ea heat pump operating down to approximately \u003cstrong\u003e-20 °C\u003c\/strong\u003e suits the chosen heating strategy;\u003c\/li\u003e\n\u003cli\u003ethe property has the necessary electrical supply;\u003c\/li\u003e\n\u003cli\u003ecold-climate or ENERGY STAR certification is not a project requirement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHowever, it should be compared with other solutions if the property owner's main goal is to obtain the highest possible capacity during extreme cold or to benefit from a program requiring a specific certification.\u003c\/p\u003e\n\u003ch3\u003eWhy entrust the installation to AirGreen\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heating \u0026amp; Air Conditioning\u003c\/strong\u003e, we approach a central installation by evaluating everything surrounding the heat pump.\u003c\/p\u003e\n\u003cp\u003eFor the SENVILLE SENTC-36TD, we pay particular attention to its \u003cstrong\u003e1,110 CFM\u003c\/strong\u003e, its \u003cstrong\u003e3\/8 in. – 3\/4 in.\u003c\/strong\u003e piping, its \u003cstrong\u003e24 A MCA\u003c\/strong\u003e, its \u003cstrong\u003e30 A MOP\u003c\/strong\u003e, the dimensions of the indoor unit, and the clearance required around the top-mounted fan.\u003c\/p\u003e\n\u003cp\u003eThis is particularly important during a replacement.\u003c\/p\u003e\n\u003cp\u003eA central system can operate for fifteen or twenty years with defects that no one has actually corrected: improperly sized ductwork, insufficient return air, restrictive transitions, or an unsuitable outdoor location. Installing a new unit while leaving these same problems in place is not a complete improvement.\u003c\/p\u003e\n\u003cp\u003eOur goal is for the \u003cstrong\u003ecentral heat pump\u003c\/strong\u003e installed in \u003cstrong\u003eMontréal, Laval, Longueuil, on the North Shore, the South Shore, or in Montérégie\u003c\/strong\u003e to operate under the conditions for which it was selected.\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen quote for your SENVILLE SENTC-36TD\u003c\/h3\u003e\n\u003cp\u003eAre you planning to replace an old central heat pump, or are you evaluating the \u003cstrong\u003eSENVILLE R32 Top Discharge 3 tons – 36,000 BTU\u003c\/strong\u003e for your property?\u003c\/p\u003e\n\u003cp\u003eContact \u003cstrong\u003eAirGreen\u003c\/strong\u003e for an assessment of your installation. We can check the required capacity, ductwork, existing piping, electrical supply, outdoor location, and other configurations that may better match your priorities.\u003c\/p\u003e\n\u003cp\u003eWe serve \u003cstrong\u003eMontréal, Laval, Longueuil, the North Shore, the South Shore, and the Greater Metropolitan Area\u003c\/strong\u003e for the installation, replacement, and servicing of central heating and air conditioning systems.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119984226596,"sku":"SENTC-36TD-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/01_THERMOPOMPE_CENTRALE_SENVILLE_R32_TOP_DISCHARGE_3_TONNES_36000BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789056300"},{"product_id":"thermopompe-centrale-senville-r32-top-discharge-4-tonnes-48000-btu","title":"SENVILLE R32 Top Discharge Central Heat Pump | 4 Tons - 48000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 4-ton central heat pump with vertical air discharge: a particularly interesting format when outdoor space and airflow become genuine concerns\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE R32 Top Discharge 4-ton – 48,000 BTU central heat pump\u003c\/strong\u003e meets a very different need from that of a small wall-mounted heat pump. Here, we are talking about a central system capable of supplying a complete ductwork network, with indoor airflow of up to \u003cstrong\u003e1,690 CFM\u003c\/strong\u003e, an outdoor unit with vertical air discharge, an inverter compressor, and \u003cstrong\u003eR-32\u003c\/strong\u003e refrigerant.\u003c\/p\u003e\n\u003cp\u003eSenville documentation identifies this system as the \u003cstrong\u003eSENTC-48TD\u003c\/strong\u003e, a 4-ton central heat pump with a \u003cstrong\u003eTop Discharge\u003c\/strong\u003e configuration. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we are particularly interested in this type of equipment for central system replacements in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, and the North Shore\u003c\/strong\u003e, especially when a property already has a ductwork system and the available space around the outdoor unit creates certain constraints.\u003c\/p\u003e\n\u003cp\u003eThe combination provided for the AirGreen specification sheet includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENTC-48TD-OG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: SENTC-48TD-IG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNominal capacity: 4 tons \/ 48,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 218338225\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-32\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi: optional\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 220 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor MCA: 36 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor MOP: 40 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePiping: 3\/8 in – 3\/4 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum indoor airflow: 1,690 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound level: 60 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor sound level: approximately 44 to 51 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR®: no, according to the AirGreen specification sheet\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCold Climate: no, according to the AirGreen specification sheet\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eStated minimum heating temperature: approximately -20 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAn important technical clarification regarding efficiency ratings\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet provided for this combination indicates, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSEER: 18.5\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER: 9.7\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF: 8.1\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e27,000 BTU\/h at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e29,000 BTU\/h at -15 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHowever, the attached Senville brochure presents slightly different data for the SENTC-48TD system: \u003cstrong\u003eSEER2 17.6, EER2 11.3, HSPF2 Region 4 of 9.1, and a heating COP of 3.39\u003c\/strong\u003e. It also indicates a nominal cooling capacity of \u003cstrong\u003e47,000 BTU\/h\u003c\/strong\u003e, with modulation from \u003cstrong\u003e15,000 to 49,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference deserves to be mentioned rather than concealed. It may result from a particular certified combination, a documentation revision, or a change in the method used to present performance data. For an AirGreen submission, we recommend relying on \u003cstrong\u003ethe exact SENTC-48TD-OG + SENTC-48TD-IG combination and its AHRI certificate 218338225\u003c\/strong\u003e, then confirming the applicable values at the time of sale.\u003c\/p\u003e\n\u003ch3\u003e48,000 BTU does not mean that the compressor constantly operates at 48,000 BTU\u003c\/h3\u003e\n\u003cp\u003eInverter technology completely changes how a 4-ton heat pump should be understood.\u003c\/p\u003e\n\u003cp\u003eThe brochure indicates a modulating cooling capacity of \u003cstrong\u003e15,000 to 49,000 BTU\/h\u003c\/strong\u003e and a heating capacity of \u003cstrong\u003e11,000 to 52,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis means that when the home requires less heating or cooling, the system can reduce its output instead of operating solely according to an on-off logic.\u003c\/p\u003e\n\u003cp\u003eIn a properly sized home, this modulation can help:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ereduce temperature variations;\u003c\/li\u003e\n\u003cli\u003eextend periods of operation at partial load;\u003c\/li\u003e\n\u003cli\u003elimit certain short cycles;\u003c\/li\u003e\n\u003cli\u003eimprove comfort stability;\u003c\/li\u003e\n\u003cli\u003ebetter match consumption to actual demand.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is particularly important in a central installation, where comfort depends as much on production capacity as on air distribution.\u003c\/p\u003e\n\u003ch3\u003eWhy the Top Discharge format can be useful in Montreal and denser areas\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit is visually distinguished by its fan located on top.\u003c\/p\u003e\n\u003cp\u003eInstead of discharging air horizontally toward a fence, driveway, or neighboring building, the heat pump expels a large portion of its airflow upward.\u003c\/p\u003e\n\u003cp\u003eFor certain projects in \u003cstrong\u003eMontreal, Longueuil, or Laval\u003c\/strong\u003e, this configuration can make it easier to choose a location, especially when side passages are narrow.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e29 9\/64 in. × 29 9\/64 in. × 32 7\/8 in.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e187 lb net\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis relatively compact footprint is appealing for a 4-ton heat pump, but it does not mean that we can install it in an enclosed space.\u003c\/p\u003e\n\u003cp\u003eA Top Discharge unit always requires:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eadequate vertical clearance;\u003c\/li\u003e\n\u003cli\u003esufficient airflow around the coil;\u003c\/li\u003e\n\u003cli\u003ea stable base;\u003c\/li\u003e\n\u003cli\u003eservice clearance;\u003c\/li\u003e\n\u003cli\u003ea layout that takes snow accumulation into account;\u003c\/li\u003e\n\u003cli\u003ea location that complies with municipal requirements and property-line setbacks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAn indoor unit nearly 53 inches high\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e24 31\/64 in. wide × 21 1\/32 in. deep × 52 63\/64 in. high\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIts net weight is approximately \u003cstrong\u003e164 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a central system replacement, this data can become just as important as capacity.\u003c\/p\u003e\n\u003cp\u003eWe regularly encounter mechanical rooms where the old furnace was installed very close to the water heater, wall, or main plenum. A difference of a few inches may require:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea sheet-metal transition;\u003c\/li\u003e\n\u003cli\u003ea plenum modification;\u003c\/li\u003e\n\u003cli\u003efilter repositioning;\u003c\/li\u003e\n\u003cli\u003ean adjustment to the air return;\u003c\/li\u003e\n\u003cli\u003ea drain modification;\u003c\/li\u003e\n\u003cli\u003epartial relocation of piping or wiring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAt AirGreen, we prefer to measure these elements during the assessment rather than treat them as an unexpected modification during installation.\u003c\/p\u003e\n\u003ch3\u003e1 690 CFM: a figure that makes it essential to take a close look at the duct network\u003c\/h3\u003e\n\u003cp\u003eThe Senville brochure provides two indoor airflow values:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1 690 CFM at high speed\u003c\/strong\u003e and \u003cstrong\u003e750 CFM at low airflow\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA 4-ton system capable of moving \u003cstrong\u003e1,690 cubic feet of air per minute\u003c\/strong\u003e requires a properly sized duct network.\u003c\/p\u003e\n\u003cp\u003eThis is where many central systems can lose some of their potential.\u003c\/p\u003e\n\u003cp\u003eA customer may replace an old heat pump with a much newer unit, but still have:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ean undersized air return;\u003c\/li\u003e\n\u003cli\u003ecrushed ducts;\u003c\/li\u003e\n\u003cli\u003ehighly restrictive transitions;\u003c\/li\u003e\n\u003cli\u003eclosed registers;\u003c\/li\u003e\n\u003cli\u003eunbalanced distribution between floors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe result can be disappointing even with new equipment.\u003c\/p\u003e\n\u003ch3\u003eA scenario we regularly see in Greater Montreal\u003c\/h3\u003e\n\u003cp\u003eA homeowner calls us because the second floor remains hot in the summer while the ground floor is comfortable.\u003c\/p\u003e\n\u003cp\u003eThe old system is 4 tons. The natural assumption is that even more capacity is needed.\u003c\/p\u003e\n\u003cp\u003eIn the field, however, the problem may be completely different: the second floor receives too little airflow, the main return is restrictive, or several branches are unbalanced.\u003c\/p\u003e\n\u003cp\u003eIn this case, moving to a higher capacity would not correct the cause.\u003c\/p\u003e\n\u003cp\u003eFor a \u003cstrong\u003eSENVILLE SENTC-48TD\u003c\/strong\u003e, we therefore check not only the number of BTUs, but also how the \u003cstrong\u003e1 690 CFM\u003c\/strong\u003e can actually circulate through the building.\u003c\/p\u003e\n\u003ch3\u003eOutdoor unit with 3 050 CFM airflow and a sound level of 60 dB(A)\u003c\/h3\u003e\n\u003cp\u003eThe brochure indicates a maximum outdoor airflow of \u003cstrong\u003e3 050 CFM\u003c\/strong\u003e and a sound level of \u003cstrong\u003e60 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIndoors, the stated sound level ranges from \u003cstrong\u003e44 to 51 dB(A)\u003c\/strong\u003e depending on the airflow.\u003c\/p\u003e\n\u003cp\u003eThese values are encouraging for a unit of this capacity, but the actual acoustics of a central system depend on several other factors:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eunit installation;\u003c\/li\u003e\n\u003cli\u003emetal transitions;\u003c\/li\u003e\n\u003cli\u003estatic pressure;\u003c\/li\u003e\n\u003cli\u003ereturn dimensions;\u003c\/li\u003e\n\u003cli\u003espeed at the grilles;\u003c\/li\u003e\n\u003cli\u003emechanical room location;\u003c\/li\u003e\n\u003cli\u003educt acoustic insulation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA whooshing sound in a bedroom is therefore not necessarily caused by the compressor or the heat pump itself.\u003c\/p\u003e\n\u003ch3\u003eA Twin-Rotary DC Inverter compressor\u003c\/h3\u003e\n\u003cp\u003eThe brochure identifies the compressor as a \u003cstrong\u003eTwin-Rotary DC Inverter\u003c\/strong\u003e, model KTQ420D41SN5A1 from GMCC. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis design allows capacity modulation rather than operation solely at fixed power.\u003c\/p\u003e\n\u003cp\u003eFor the homeowner, the interest is not the compressor's name itself. What matters is the system's ability to respond to a variable load throughout the day.\u003c\/p\u003e\n\u003cp\u003eA house may require a great deal of air conditioning at 4 p.m. on a hot day and significantly less at 10 p.m. The inverter allows it to better follow this variation.\u003c\/p\u003e\n\u003ch2\u003eHeating in Quebec, R-32, and installation: the points we verify before recommending this 4-ton SENVILLE\u003c\/h2\u003e\n\u003ch3\u003eThis is not a Cold Climate heat pump according to the AirGreen product sheet\u003c\/h3\u003e\n\u003cp\u003eThe provided product sheet classifies the system as:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCold Climate: no\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEnergy Star: no\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis is important information for a Quebec homeowner.\u003c\/p\u003e\n\u003cp\u003eThis does not mean that the unit does not heat in cold weather. The brochure indicates an official heating range down to \u003cstrong\u003e-4 °F, or approximately -20 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe difference lies mainly in the usage strategy.\u003c\/p\u003e\n\u003cp\u003eWe see this heat pump more as a solution for a property where:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCentral air conditioning represents an important need;\u003c\/li\u003e\n\u003cli\u003eThe heat pump provides a large portion of the seasonal heating;\u003c\/li\u003e\n\u003cli\u003eA backup system remains available when the cold becomes severe;\u003c\/li\u003e\n\u003cli\u003eCold Climate certification down to -30 °C is not a central requirement of the project.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe brochure's heating capacities provide a much more precise picture\u003c\/h3\u003e\n\u003cp\u003eSenville documentation provides several operating points:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e50,000 BTU\/h at 47 °F, or approximately 8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e30,000 BTU\/h at 17 °F, or approximately -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e36,000 BTU\/h at 5 °F, or approximately -15 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e32,000 BTU\/h at -4 °F, or approximately -20 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe nominal heating range is between \u003cstrong\u003e11,000 and 52,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese figures differ slightly from the \u003cstrong\u003e27,000 BTU at -8 °C\u003c\/strong\u003e and \u003cstrong\u003e29,000 BTU at -15 °C\u003c\/strong\u003e currently provided on the AirGreen product sheet.\u003c\/p\u003e\n\u003cp\u003eIn a technical publication, this difference must be checked against the exact AHRI certificate rather than being arbitrarily combined.\u003c\/p\u003e\n\u003cp\u003eWhat remains certain is that \u003cstrong\u003eavailable capacity decreases in cold weather and must not be equated with the nominal capacity of 48,000 BTU\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhy this distinction matters in Laval, Montreal, and on both shores\u003c\/h3\u003e\n\u003cp\u003eA property may require 45,000 BTU\/h of heating on an extremely cold day.\u003c\/p\u003e\n\u003cp\u003eIf the heat pump provides only 30,000 to 36,000 BTU\/h under these conditions, the difference must be covered by another source.\u003c\/p\u003e\n\u003cp\u003eIn a central system, this may include a \u003cstrong\u003esupplemental electric heating element\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe right strategy is not necessarily to require the heat pump to cover 100% of the load at every temperature. Instead, it is necessary to determine at what temperature supplemental heating becomes necessary and how much energy it must provide.\u003c\/p\u003e\n\u003ch3\u003eR-32: 119.9 oz factory charge\u003c\/h3\u003e\n\u003cp\u003eThe SENTC-48TD operates with \u003cstrong\u003eR-32\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe brochure states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003efactory charge: 3.4 kg \/ 119.9 oz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eadditional charge: 0.52 oz per foot\u003c\/strong\u003e when required;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eliquid line: 3\/8 in.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003egas line: 3\/4 in.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003emaximum piping length: 246 ft\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003emaximum height difference: 98.4 ft\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eflared refrigerant connections. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis information is particularly useful for certain complex projects where the outdoor unit must be installed far from the indoor air handler.\u003c\/p\u003e\n\u003ch3\u003eWhy an old 3\/8 – 3\/4 line set should not be reused automatically\u003c\/h3\u003e\n\u003cp\u003eThe correct diameter alone does not guarantee that the lines can be reused.\u003c\/p\u003e\n\u003cp\u003eFor a replacement, we must consider:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe refrigerant used by the old system;\u003c\/li\u003e\n\u003cli\u003ethe cleanliness of the lines’ interiors;\u003c\/li\u003e\n\u003cli\u003etheir condition;\u003c\/li\u003e\n\u003cli\u003etheir thickness;\u003c\/li\u003e\n\u003cli\u003ethe length;\u003c\/li\u003e\n\u003cli\u003ethe number of connections;\u003c\/li\u003e\n\u003cli\u003ethe height differences;\u003c\/li\u003e\n\u003cli\u003ethe instructions applicable to the new equipment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAt AirGreen, this verification is particularly important when piping passes through multiple floors or finished areas.\u003c\/p\u003e\n\u003ch3\u003e208\/230 V and outdoor circuit: MCA 36 A, MOP 40 A\u003c\/h3\u003e\n\u003cp\u003eThe documentation specifies a \u003cstrong\u003e208\/230 V, 60 Hz, single-phase\u003c\/strong\u003e power supply.\u003c\/p\u003e\n\u003cp\u003eIt provides the electrical requirements separately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eindoor unit: MCA 7 A \/ MOP 15 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eoutdoor unit: MCA 36 A \/ MOP 40 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis distinction is important when planning the site’s electrical installation.\u003c\/p\u003e\n\u003cp\u003eThe owner should not only check for the presence of a 40 A circuit breaker. The panel’s overall capacity, wiring, disconnect switch, and, when auxiliary heating is installed, its additional electrical load must also be considered.\u003c\/p\u003e\n\u003ch3\u003eAuxiliary heating must be included in the calculations from the outset\u003c\/h3\u003e\n\u003cp\u003eSince the heat pump is not identified as Cold Climate and its heating range drops to approximately \u003cstrong\u003e-20 °C\u003c\/strong\u003e, planning for supplemental heating becomes particularly important in Quebec.\u003c\/p\u003e\n\u003cp\u003eIn an AirGreen installation, we want to know:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ewhat the building’s actual heating load is;\u003c\/li\u003e\n\u003cli\u003ehow many BTUs the heat pump can provide at -8, -15, and -20 °C;\u003c\/li\u003e\n\u003cli\u003ewhen supplemental heating becomes necessary;\u003c\/li\u003e\n\u003cli\u003ewhat electrical capacity is available.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis analysis helps avoid two extremes: auxiliary heating that is too small to cover the home or an unnecessarily large element that imposes excessive electrical demand.\u003c\/p\u003e\n\u003ch3\u003eSizing: 4 tons are not automatically better than 3 tons\u003c\/h3\u003e\n\u003cp\u003eA 48,000 BTU unit may be necessary in a large property, but the mere fact that a 4-ton system can be installed does not mean it should be.\u003c\/p\u003e\n\u003cp\u003eOversizing can cause:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eless favorable cycles;\u003c\/li\u003e\n\u003cli\u003eless consistent humidity control;\u003c\/li\u003e\n\u003cli\u003eexcessive airflow;\u003c\/li\u003e\n\u003cli\u003emore noise at the grilles;\u003c\/li\u003e\n\u003cli\u003eless even temperatures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe always prefer to validate the capacity before replacing “4 tons with 4 tons.”\u003c\/p\u003e\n\u003cp\u003eA home that has received new windows, better insulation, and air-sealing work may have a much lower load than when its old system was installed.\u003c\/p\u003e\n\u003ch3\u003eAnother mistake: judging only the outdoor unit\u003c\/h3\u003e\n\u003cp\u003eThe heat pump photo naturally draws attention, but in a central system, \u003cstrong\u003ethe indoor unit and the ducts are equally important\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA SENTC-48TD with an improperly balanced duct network will not deliver the same results as a properly integrated system.\u003c\/p\u003e\n\u003cp\u003eThat is why our team considers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe return;\u003c\/li\u003e\n\u003cli\u003ethe filter;\u003c\/li\u003e\n\u003cli\u003ethe static pressure;\u003c\/li\u003e\n\u003cli\u003ethe main ducts;\u003c\/li\u003e\n\u003cli\u003ethe branches;\u003c\/li\u003e\n\u003cli\u003ethe registers;\u003c\/li\u003e\n\u003cli\u003ethe position of the indoor central unit;\u003c\/li\u003e\n\u003cli\u003ethe drainage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHVAC maintenance: high airflow requires a clean filter and coil\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003e1,690 CFM\u003c\/strong\u003e, an airflow restriction can quickly become problematic.\u003c\/p\u003e\n\u003cp\u003eA neglected filter increases system resistance. A dirty indoor coil can reduce heat exchange. Blocked ducts or closed registers can alter static pressure.\u003c\/p\u003e\n\u003cp\u003eRegular \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e therefore does more than simply keep the equipment clean: it helps maintain the airflow for which the central system was designed.\u003c\/p\u003e\n\u003ch3\u003eWarranty and pre-order verification\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates a manufacturer’s warranty:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10-year compressor – 10-year parts – 0-year labor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eas well as possible additional coverage.\u003c\/p\u003e\n\u003cp\u003eFor any central heat pump, we recommend confirming the exact registration conditions and the coverage applicable to the installed combination.\u003c\/p\u003e\n\u003cp\u003eIt is also important to distinguish between:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ecompressor warranty;\u003c\/li\u003e\n\u003cli\u003eparts warranty;\u003c\/li\u003e\n\u003cli\u003elabor;\u003c\/li\u003e\n\u003cli\u003etravel;\u003c\/li\u003e\n\u003cli\u003erefrigerant;\u003c\/li\u003e\n\u003cli\u003ediagnosis.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA “10-year” statement does not necessarily mean that all costs associated with a potential repair are covered during that period.\u003c\/p\u003e\n\u003ch3\u003eWhich projects is this SENVILLE Top Discharge best suited for?\u003c\/h3\u003e\n\u003cp\u003eWe would particularly consider it for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea home with an existing \u003cstrong\u003ecentral ductwork network\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea 4-ton system replacement after sizing has been validated;\u003c\/li\u003e\n\u003cli\u003ea property where outdoor ground space is limited;\u003c\/li\u003e\n\u003cli\u003ea location where vertical discharge offers an advantage;\u003c\/li\u003e\n\u003cli\u003ean installation where airflow of up to \u003cstrong\u003e1,690 CFM\u003c\/strong\u003e is required;\u003c\/li\u003e\n\u003cli\u003ea project seeking an \u003cstrong\u003eR-32\u003c\/strong\u003e central system;\u003c\/li\u003e\n\u003cli\u003ea property that already has suitable auxiliary heating;\u003c\/li\u003e\n\u003cli\u003ea project where Cold Climate certification is not essential.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt would be less logical if the primary goal is to maintain very high capacity at \u003cstrong\u003e-25 °C or -30 °C\u003c\/strong\u003e. In that case, we would instead compare this system with a true Cold Climate central heat pump.\u003c\/p\u003e\n\u003ch3\u003eWhy entrust this project to AirGreen\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003e48,000 BTU\u003c\/strong\u003e central heat pump should never be treated as a simple equipment replacement.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we assess the installation as a whole:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eheat load;\u003c\/li\u003e\n\u003cli\u003eheat pump capacity;\u003c\/li\u003e\n\u003cli\u003eventilation network;\u003c\/li\u003e\n\u003cli\u003estatic pressure;\u003c\/li\u003e\n\u003cli\u003eairflow;\u003c\/li\u003e\n\u003cli\u003eelectrical power supply;\u003c\/li\u003e\n\u003cli\u003eauxiliary heating;\u003c\/li\u003e\n\u003cli\u003erefrigerant piping;\u003c\/li\u003e\n\u003cli\u003edrainage;\u003c\/li\u003e\n\u003cli\u003ethermostat;\u003c\/li\u003e\n\u003cli\u003eoutdoor location;\u003c\/li\u003e\n\u003cli\u003eservice access.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe serve \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e for central-system replacements and installations.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENTC-48TD R32 Top Discharge 4-ton\u003c\/strong\u003e offers an interesting technical package: a Twin-Rotary DC Inverter compressor, significant modulation, an indoor airflow range of \u003cstrong\u003e750 to 1,690 CFM\u003c\/strong\u003e, a compact top-discharge outdoor unit, an advertised outdoor sound level of \u003cstrong\u003e60 dB(A)\u003c\/strong\u003e, and \u003cstrong\u003e3\/8 in – 3\/4 in\u003c\/strong\u003e piping. These specifications are directly confirmed by the Senville documentation provided. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen for a quote on the SENVILLE R32 Top Discharge 4-ton central heat pump – 48,000 BTU. We can check the sizing, ductwork, electrical panel, auxiliary heating, and complete installation for your property in Montreal, Laval, Longueuil, the South Shore, or the North Shore.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119984292132,"sku":"SENTC-48TD-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/01_THERMOPOMPE_CENTRALE_SENVILLE_R32_TOP_DISCHARGE_4_TONNES_48000BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789056308"},{"product_id":"thermopompe-centrale-senville-r32-top-discharge-5-tonnes-60000-btu","title":"SENVILLE R32 Top Discharge Central Heat Pump | 5 Tons - 60000 BTU","description":"\u003ch2\u003eA high-capacity central system built around inverter technology, R-32, and a vertically discharging outdoor unit\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE R32 Top Discharge 5-ton – 60,000 BTU central heat pump\u003c\/strong\u003e addresses a very different need from that of a small wall-mounted heat pump. It is intended for large homes, certain ducted multi-zone properties, and light commercial applications where the system must move a large volume of air while maintaining a relatively uniform temperature across multiple rooms.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, when we evaluate a \u003cstrong\u003ecentral system replacement in Montreal, Laval, Longueuil, on the North Shore, or the South Shore\u003c\/strong\u003e, our first question is not simply whether the old unit was five tons. We must verify whether the ductwork, air returns, electrical supply, and the building’s heat losses still genuinely correspond to this capacity.\u003c\/p\u003e\n\u003cp\u003eThe combination presented on the AirGreen product sheet includes the \u003cstrong\u003eSENTC-60TD-OG\u003c\/strong\u003e outdoor unit and the \u003cstrong\u003eSENTC-60TD-IG\u003c\/strong\u003e indoor unit, associated with \u003cstrong\u003eAHRI 218338226\u003c\/strong\u003e. It operates with \u003cstrong\u003eR-32\u003c\/strong\u003e, uses a 220 V power supply, and offers optional WiFi.\u003c\/p\u003e\n\u003cp\u003eSenville’s documentation describes this system as a \u003cstrong\u003e5-ton \/ 60,000 BTU\u003c\/strong\u003e central heat pump intended for large homes and light commercial applications. The brochure emphasizes its high airflow, its ability to maintain stable temperatures, and its variable-capacity operation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e60,000 BTU in the name, but 55,000 BTU\/h in the technical table: an important distinction\u003c\/h3\u003e\n\u003cp\u003eThe commercial designation refers to a \u003cstrong\u003e5-ton – 60,000 BTU\u003c\/strong\u003e system. However, it is important to look beyond the title.\u003c\/p\u003e\n\u003cp\u003eIn the brochure’s technical table, Senville lists a \u003cstrong\u003enominal cooling capacity of 55,000 BTU\/h\u003c\/strong\u003e, with a modulation range of approximately \u003cstrong\u003e14,000 to 55,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis distinction deserves to be clearly explained.\u003c\/p\u003e\n\u003cp\u003eIn the HVAC industry, a system may be marketed in a five-ton capacity class while having a slightly different certified or nominal capacity depending on the exact combination of units and test conditions.\u003c\/p\u003e\n\u003cp\u003eFor the homeowner, the most useful information is therefore not simply “five tons.” Instead, we examine:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe certified capacity of the exact combination;\u003c\/li\u003e\n\u003cli\u003eits modulation range;\u003c\/li\u003e\n\u003cli\u003ethe airflow;\u003c\/li\u003e\n\u003cli\u003ethe low-temperature heating capacity;\u003c\/li\u003e\n\u003cli\u003ethe existing ductwork;\u003c\/li\u003e\n\u003cli\u003ethe actual load of the building.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe AirGreen product sheet currently provided indicates a cooling capacity of \u003cstrong\u003e60,000 BTU\u003c\/strong\u003e. The attached technical brochure, for its part, indicates \u003cstrong\u003e55,000 BTU\/h nominal\u003c\/strong\u003e. For a final quote, we therefore recommend referring to the exact combination \u003cstrong\u003eSENTC-60TD-OG + SENTC-60TD-IG, AHRI 218338226\u003c\/strong\u003e, rather than inferring performance solely from the category name.\u003c\/p\u003e\n\u003ch3\u003eAn inverter modulation that changes how a five-ton central system operates\u003c\/h3\u003e\n\u003cp\u003eThe brochure specifies that the compressor is a \u003cstrong\u003eTwin-Rotary DC Inverter\u003c\/strong\u003e, model KTQ420D41SN5A1 by GMCC. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis detail is central.\u003c\/p\u003e\n\u003cp\u003eAn older central air conditioner or heat pump could operate essentially at full capacity, then shut off when the setpoint was reached.\u003c\/p\u003e\n\u003cp\u003eHere, the capacity can vary much more widely.\u003c\/p\u003e\n\u003cp\u003eIn cooling mode, the brochure shows a range of \u003cstrong\u003e14,000 to 55,000 BTU\/h\u003c\/strong\u003e. In heating mode, the stated range is \u003cstrong\u003e13,400 to 55,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a large home on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e or in \u003cstrong\u003eLaval\u003c\/strong\u003e, this means the unit does not need to continuously produce the equivalent of five tons when demand is moderate.\u003c\/p\u003e\n\u003cp\u003eThis modulation can promote:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003elonger cycles;\u003c\/li\u003e\n\u003cli\u003efewer abrupt temperature changes;\u003c\/li\u003e\n\u003cli\u003emore consistent airflow;\u003c\/li\u003e\n\u003cli\u003ebetter adaptation to intermediate loads;\u003c\/li\u003e\n\u003cli\u003efewer full compressor starts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHowever, it does not replace proper sizing. A five-ton heat pump remains a high-capacity piece of equipment, even when it can slow down.\u003c\/p\u003e\n\u003ch3\u003ePerformance data: two sets of values that should not be mixed\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet provided with the product shows:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSEER: 17.7\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF: 8.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER: 8.6\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe attached technical brochure, meanwhile, shows:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 17.1\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 10.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region 4: 8.7\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNominal heating COP: 3.31\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIt would not be rigorous to arbitrarily choose one of these values and present the other as an error. The ratings may come from different certification versions, presentation methods, or combinations.\u003c\/p\u003e\n\u003cp\u003eFor a technical comparison with another central system, we recommend always using the data corresponding exactly to the \u003cstrong\u003eAHRI number of the installed combination\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe key point remains that this is a high-capacity central inverter system, not a wall-mounted heat pump with a very high SEER2. The performance of a ducted system should be compared with other central systems in the same category.\u003c\/p\u003e\n\u003ch3\u003eHeating down to approximately -20 °C: what the brochure confirms\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates heating operation down to \u003cstrong\u003e-20 °C\u003c\/strong\u003e and classifies this model as \u003cstrong\u003enon-Cold Climate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe brochure confirms an outdoor heating range down to \u003cstrong\u003e-4 °F\u003c\/strong\u003e, or approximately \u003cstrong\u003e-20 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is an important difference compared with central heat pumps specifically designed and certified to maintain performance at \u003cstrong\u003e-25 °C or -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis SENVILLE can therefore play an important role in winter heating, but we do not present it as a -30 °C cold-climate heat pump.\u003c\/p\u003e\n\u003cp\u003eAccording to the data on the AirGreen data sheet:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ecapacity at \u003cstrong\u003e-8 °C: approximately 30,400 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ecapacity at \u003cstrong\u003e-15 °C: approximately 30,000 BTU\/h\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe brochure, for its part, provides several performance points:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e57,000 BTU\/h at 47 °F\u003c\/strong\u003e, or approximately 8 °C;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e34,500 BTU\/h at 17 °F\u003c\/strong\u003e, or approximately -8 °C;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e40,000 BTU\/h at 5 °F\u003c\/strong\u003e, or approximately -15 °C;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e33,000 BTU\/h at -4 °F\u003c\/strong\u003e, or approximately -20 °C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese figures do not perfectly match the values currently displayed on the AirGreen data sheet. For us, this reinforces an important rule: before determining the heating capacity available at a specific temperature, the performance data for the \u003cstrong\u003eactual AHRI combination being sold\u003c\/strong\u003e must be confirmed.\u003c\/p\u003e\n\u003ch3\u003eWhy 30,000 to 40,000 BTU\/h in extreme cold changes the sizing\u003c\/h3\u003e\n\u003cp\u003eSuppose a house has heat losses of 55,000 BTU\/h at the design temperature.\u003c\/p\u003e\n\u003cp\u003eA heat pump that still produces 30,000 or 35,000 BTU\/h at that temperature will not cover the entire load on its own.\u003c\/p\u003e\n\u003cp\u003eThis does not mean it becomes useless.\u003c\/p\u003e\n\u003cp\u003eOn the contrary, it can continue to provide a significant portion of the heating while an auxiliary system makes up the difference.\u003c\/p\u003e\n\u003cp\u003eIn many central projects in Quebec, the goal is not necessarily to force the heat pump to cover 100% of the needs during the coldest hour of winter. The goal may be to maximize its operation during most of the season, then use supplemental heat when necessary.\u003c\/p\u003e\n\u003ch3\u003eAn airflow of 1,740 CFM: the duct network must keep up\u003c\/h3\u003e\n\u003cp\u003eThe documentation indicates an indoor airflow of up to \u003cstrong\u003e1,740 CFM\u003c\/strong\u003e, with an advertised minimum of approximately \u003cstrong\u003e750 CFM\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is essential information for a five-ton installation.\u003c\/p\u003e\n\u003cp\u003eA central system can function properly only if the duct network can actually carry its airflow.\u003c\/p\u003e\n\u003cp\u003eDuring an AirGreen inspection, we pay particular attention to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emain return size;\u003c\/li\u003e\n\u003cli\u003eplenum size;\u003c\/li\u003e\n\u003cli\u003esupply ducts;\u003c\/li\u003e\n\u003cli\u003ebranches;\u003c\/li\u003e\n\u003cli\u003efilter cleanliness;\u003c\/li\u003e\n\u003cli\u003erestrictions;\u003c\/li\u003e\n\u003cli\u003estatic pressure;\u003c\/li\u003e\n\u003cli\u003ethe balancing of the grilles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA high-capacity heat pump connected to undersized ductwork can be noisier, move less air than expected, and operate under unfavorable conditions.\u003c\/p\u003e\n\u003ch3\u003eA common example in Greater Montreal: the old system is five tons, but the ducts are not actually sized for five tons.\u003c\/h3\u003e\n\u003cp\u003eOn central replacements, we sometimes encounter a paradoxical situation.\u003c\/p\u003e\n\u003cp\u003eA house has had a five-ton air conditioner or heat pump for a long time, but the return air and some ducts look more like what would be expected from a smaller system.\u003c\/p\u003e\n\u003cp\u003eThe fact that the old unit operated for years does not prove that the installation was properly designed.\u003c\/p\u003e\n\u003cp\u003eBefore directly replacing five tons with five tons, we therefore analyze the existing distribution system.\u003c\/p\u003e\n\u003cp\u003eThis can help us avoid:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eexcessively noisy airflow;\u003c\/li\u003e\n\u003cli\u003ehigh static pressure;\u003c\/li\u003e\n\u003cli\u003epoorly supplied rooms;\u003c\/li\u003e\n\u003cli\u003euneven temperatures;\u003c\/li\u003e\n\u003cli\u003elower efficiency than advertised performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTop Discharge: why the outdoor unit’s shape matters\u003c\/h3\u003e\n\u003cp\u003eThe term \u003cstrong\u003eTop Discharge\u003c\/strong\u003e means that the hot or cold air discharged by the condenser is expelled primarily upward.\u003c\/p\u003e\n\u003cp\u003eThis is a very common design on North American central systems.\u003c\/p\u003e\n\u003cp\u003eIt can be a good option when the unit is installed near a house or in a space where you want to avoid air being projected directly horizontally toward a patio, walkway, or neighboring wall.\u003c\/p\u003e\n\u003cp\u003eHowever, this does not mean that the unit can be installed without clearance.\u003c\/p\u003e\n\u003cp\u003eSufficient space must be maintained around and above the unit to allow proper airflow and service access.\u003c\/p\u003e\n\u003ch3\u003eCompact outdoor dimensions for a five-ton capacity\u003c\/h3\u003e\n\u003cp\u003eThe brochure gives the outdoor unit dimensions as approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e29 9\/64 in × 29 9\/64 in × 32 7\/8 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003emeasuring approximately \u003cstrong\u003e29.14 × 29.14 × 32.88 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIts net weight is approximately \u003cstrong\u003e187 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe square Top Discharge design is therefore quite different from some large, elongated side-discharge condensers.\u003c\/p\u003e\n\u003cp\u003eFor the installation, we check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe base;\u003c\/li\u003e\n\u003cli\u003eclearance around the machine;\u003c\/li\u003e\n\u003cli\u003esnow;\u003c\/li\u003e\n\u003cli\u003edisposal of defrost water;\u003c\/li\u003e\n\u003cli\u003edistance from windows;\u003c\/li\u003e\n\u003cli\u003eproximity to neighbors;\u003c\/li\u003e\n\u003cli\u003etechnician access.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e60 dB(A) outdoors\u003c\/h3\u003e\n\u003cp\u003eThe documentation lists an outdoor sound level of \u003cstrong\u003e60 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a five-ton central system, this value deserves consideration from the planning stage.\u003c\/p\u003e\n\u003cp\u003eIn Montreal and Longueuil, some properties have relatively narrow side spaces. Placing a unit directly beneath a bedroom window or a few feet from a patio can make its operation much more noticeable.\u003c\/p\u003e\n\u003cp\u003eWe therefore seek a balance between:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epiping length;\u003c\/li\u003e\n\u003cli\u003eaccessibility;\u003c\/li\u003e\n\u003cli\u003eaesthetics;\u003c\/li\u003e\n\u003cli\u003eclearance;\u003c\/li\u003e\n\u003cli\u003enoise;\u003c\/li\u003e\n\u003cli\u003emunicipal regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAn indoor unit nearly 53 inches tall\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e24.48 in × 21.03 in × 52.98 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e164 lb\u003c\/strong\u003e net. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis size is important when replacing a unit in a mechanical room already occupied by a water heater, electrical panel, or other equipment.\u003c\/p\u003e\n\u003cp\u003eWe must allow enough space not only to bring the unit in, but also to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003econnect the ducts;\u003c\/li\u003e\n\u003cli\u003einstall or adapt the plenum;\u003c\/li\u003e\n\u003cli\u003eaccess the filter;\u003c\/li\u003e\n\u003cli\u003eservice the fan;\u003c\/li\u003e\n\u003cli\u003eaccess the drain;\u003c\/li\u003e\n\u003cli\u003eopen the service panels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIndoor sound level of 44 to 52.5 dB(A)\u003c\/h3\u003e\n\u003cp\u003eThe indoor fan produces approximately \u003cstrong\u003e44 dB(A) at low speed\u003c\/strong\u003e and \u003cstrong\u003e52.5 dB(A) at high speed\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a properly installed central system, the indoor unit is generally located in a mechanical room, so this noise is less noticeable than with a wall-mounted unit located directly in the room.\u003c\/p\u003e\n\u003cp\u003eHowever, poor duct design can transmit fan noise through the grilles. Once again, the system itself is only part of the final result.\u003c\/p\u003e\n\u003ch2\u003eThe installation details that determine whether this 5-ton SENVILLE will actually deliver the expected performance\u003c\/h2\u003e\n\u003ch3\u003eR-32: an important element of this new platform\u003c\/h3\u003e\n\u003cp\u003eThe system uses \u003cstrong\u003eR-32\u003c\/strong\u003e, with a stated factory charge of \u003cstrong\u003e3.4 kg\u003c\/strong\u003e, or approximately \u003cstrong\u003e119.9 oz\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe documentation also specifies an additional charge of approximately \u003cstrong\u003e0.52 oz per foot\u003c\/strong\u003e when necessary. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eR-32 is an A2L refrigerant. Its handling therefore requires appropriate procedures and tools.\u003c\/p\u003e\n\u003cp\u003eFor AirGreen, a professional installation includes, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eproper piping preparation;\u003c\/li\u003e\n\u003cli\u003ethe leak test;\u003c\/li\u003e\n\u003cli\u003eevacuation;\u003c\/li\u003e\n\u003cli\u003ethe charge corresponding to the actual length;\u003c\/li\u003e\n\u003cli\u003ethe inspection after commissioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e3\/8 in – 3\/4 in piping\u003c\/h3\u003e\n\u003cp\u003eThe brochure confirms a liquid line of \u003cstrong\u003e3\/8 po\u003c\/strong\u003e and a gas line of \u003cstrong\u003e3\/4 po\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt also indicates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emaximum piping length: \u003cstrong\u003e246 feet \/ 75 m\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emaximum height difference: \u003cstrong\u003e98.4 feet \/ 30 m\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eflare fittings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese limits offer good installation flexibility, but we always seek to avoid unnecessary lengths. A simple, accessible, and well-planned installation remains preferable to a complex route simply because the manufacturer allows a long maximum length.\u003c\/p\u003e\n\u003ch3\u003eMCA 39 A and MOP 40 A outdoors\u003c\/h3\u003e\n\u003cp\u003eThe brochure specifies for the outdoor unit:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 39 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 40 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eand for the indoor unit:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 7 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 15 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe AirGreen specification sheet lists an \u003cstrong\u003eoutdoor MCA of 39 A\u003c\/strong\u003e and an \u003cstrong\u003eMOP of 40 A\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis information must be incorporated into the home's electrical analysis.\u003c\/p\u003e\n\u003cp\u003eA large property may already have:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eelectric heating;\u003c\/li\u003e\n\u003cli\u003ewater heater;\u003c\/li\u003e\n\u003cli\u003edryer;\u003c\/li\u003e\n\u003cli\u003estove;\u003c\/li\u003e\n\u003cli\u003echarging station;\u003c\/li\u003e\n\u003cli\u003espa;\u003c\/li\u003e\n\u003cli\u003eother significant loads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe therefore never treat electricity as a mere formality added after choosing the equipment.\u003c\/p\u003e\n\u003ch3\u003eConsumption that varies with modulation\u003c\/h3\u003e\n\u003cp\u003eIn cooling mode, the brochure shows power consumption of approximately \u003cstrong\u003e900 to 6,800 W\u003c\/strong\u003e, with a nominal value of \u003cstrong\u003e5,500 W\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn heating mode, it also indicates a range of approximately \u003cstrong\u003e900 to 6,800 W\u003c\/strong\u003e, with \u003cstrong\u003e5,050 W\u003c\/strong\u003e as the reference value. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese ranges directly show the effect of inverter technology.\u003c\/p\u003e\n\u003cp\u003eElectricity consumption does not remain constant. It varies according to the load, outdoor temperature, and operating conditions.\u003c\/p\u003e\n\u003ch3\u003eNot ENERGY STAR and not Cold Climate: this is not a minor detail\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product page classifies this combination as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR: no\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCold Climate: no\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis point should be clearly stated when comparing it with other central heat pumps.\u003c\/p\u003e\n\u003cp\u003eA system can perform well without being ENERGY STAR or cold-climate certified under the criteria of a given program.\u003c\/p\u003e\n\u003cp\u003eThis distinction can influence:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003erebates;\u003c\/li\u003e\n\u003cli\u003eeligibility for certain programs;\u003c\/li\u003e\n\u003cli\u003ecomparison with -25 °C or -30 °C models;\u003c\/li\u003e\n\u003cli\u003ethe net cost of the project.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe brochure provides no information allowing us to confirm ENERGY STAR certification for this combination. It mainly indicates its performance and operating range.\u003c\/p\u003e\n\u003ch3\u003eWarranty: verify the exact coverage sold by AirGreen\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product page indicates a manufacturer’s warranty of:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10-year compressor – 10-year parts – 0-year labor\u003c\/strong\u003e, with the possibility of an additional warranty.\u003c\/p\u003e\n\u003cp\u003eThe attached brochure does not clearly provide a warranty table in the technical pages supplied.\u003c\/p\u003e\n\u003cp\u003eWe therefore recommend considering the warranty terms displayed on the AirGreen product page as the commercial reference for the product being sold, while confirming the registration requirements and applicable terms at the time of ordering.\u003c\/p\u003e\n\u003ch3\u003eWhen this 5-ton SENVILLE becomes a logical choice\u003c\/h3\u003e\n\u003cp\u003eWe would look particularly closely at this model for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea large home equipped with existing ductwork;\u003c\/li\u003e\n\u003cli\u003ea home requiring high airflow;\u003c\/li\u003e\n\u003cli\u003ea replacement for a high-capacity central system;\u003c\/li\u003e\n\u003cli\u003ea light commercial space;\u003c\/li\u003e\n\u003cli\u003ean installation where the \u003cstrong\u003eTop Discharge\u003c\/strong\u003e design makes outdoor placement easier;\u003c\/li\u003e\n\u003cli\u003ea homeowner who wants inverter technology but does not need cold-climate certification down to -30 °C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe would be more cautious if the owner’s primary goal is a heat pump capable of meeting a large portion of the heating load at the coldest temperatures of a Quebec winter.\u003c\/p\u003e\n\u003cp\u003eIn this case, the capacities at -15 °C and -20 °C should be compared with those of other cold-climate models.\u003c\/p\u003e\n\u003ch3\u003eThe biggest mistake to avoid with a five-ton heat pump\u003c\/h3\u003e\n\u003cp\u003eThe main mistake would be to assume that “bigger” automatically means “better.”\u003c\/p\u003e\n\u003cp\u003eA five-ton system installed in a house that actually needs only three or four tons can create several problems:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eimproper cycling;\u003c\/li\u003e\n\u003cli\u003eexcessive airflow;\u003c\/li\u003e\n\u003cli\u003enoise at the grilles;\u003c\/li\u003e\n\u003cli\u003eless effective dehumidification under certain conditions;\u003c\/li\u003e\n\u003cli\u003eunnecessary consumption;\u003c\/li\u003e\n\u003cli\u003euneven comfort.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eConversely, a large house with an actual load close to five tons should not be equipped with a smaller system simply to reduce the initial price.\u003c\/p\u003e\n\u003cp\u003eThe right choice comes from consistent sizing.\u003c\/p\u003e\n\u003ch3\u003eWhat we review at AirGreen before confirming the SENTC-60TD\u003c\/h3\u003e\n\u003cp\u003eFor a \u003cstrong\u003ecentral heat pump installation in Montreal, Laval, Longueuil, on the South Shore, or on the North Shore\u003c\/strong\u003e, we analyze the entire system:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe required heating and cooling capacity;\u003c\/li\u003e\n\u003cli\u003ethe airflow the ducts can actually support;\u003c\/li\u003e\n\u003cli\u003ethe return-air size;\u003c\/li\u003e\n\u003cli\u003ethe condition of the plenum;\u003c\/li\u003e\n\u003cli\u003ethe electrical panel capacity;\u003c\/li\u003e\n\u003cli\u003ethe outdoor unit location;\u003c\/li\u003e\n\u003cli\u003ethe piping length;\u003c\/li\u003e\n\u003cli\u003ethe auxiliary heating strategy;\u003c\/li\u003e\n\u003cli\u003ethe thermostat and controls;\u003c\/li\u003e\n\u003cli\u003efuture access for maintenance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis approach is what turns a good specification sheet into a truly comfortable installation.\u003c\/p\u003e\n\u003ch3\u003eOur assessment of the SENVILLE R32 Top Discharge 5-ton system\u003c\/h3\u003e\n\u003cp\u003eThis SENVILLE has several noteworthy features for a high-capacity central system project:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e5-ton \/ 60,000 BTU\u003c\/strong\u003e category;\u003c\/li\u003e\n\u003cli\u003erated cooling capacity of \u003cstrong\u003e55,000 BTU\/h according to the brochure\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003erated heating capacity of \u003cstrong\u003e57,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTwin-Rotary DC Inverter\u003c\/strong\u003e technology;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eR-32\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eairflow of up to \u003cstrong\u003e1,740 CFM\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eheating operation down to approximately \u003cstrong\u003e-20°C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e3\/8 in – 3\/4 in\u003c\/strong\u003e piping;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTop Discharge\u003c\/strong\u003e outdoor unit;\u003c\/li\u003e\n\u003cli\u003eannounced outdoor sound level of \u003cstrong\u003e60 dB(A)\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eWiFi available as an option according to the AirGreen specification sheet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is particularly suitable when the building already has a properly sized duct network and the capacity requirement is genuinely high.\u003c\/p\u003e\n\u003cp\u003eThe most important point, however, remains validating the data for the exact combination. The figures in the AirGreen specification sheet and those in the brochure do not match perfectly for certain performance ratings and capacities at low temperatures. We therefore prefer to verify \u003cstrong\u003eAHRI number 218338226\u003c\/strong\u003e before basing a final decision on a single value.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre you considering the SENVILLE R32 Top Discharge 5-ton system to replace your old central system? Contact AirGreen for a quote and a complete assessment of your ductwork, electrical supply, and heating needs. We serve Montreal, Laval, Longueuil, the North Shore, the South Shore, and Montérégie for the installation, maintenance, and servicing of central HVAC systems.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119984324900,"sku":"SENTC-60TD-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/01_THERMOPOMPE_CENTRALE_SENVILLE_R32_TOP_DISCHARGE_5_TONNES_60000BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789056315"},{"product_id":"thermopompe-2-zones-senville-r454b-18000-btu","title":"SENVILLE R454B 2-Zone Heat Pump | 18000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eTwo zones, two 9,000 BTU indoor units, and a single condenser: a particularly interesting configuration for Quebec's climate\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE R454B 2-Zone Heat Pump | 18,000 BTU\u003c\/strong\u003e addresses a need we regularly encounter at AirGreen: heating and cooling two separate spaces without installing two condensers on the façade, balcony, or side of the house. For properties in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e, this configuration can be particularly relevant when a single wall-mounted unit cannot properly distribute air to two bedrooms, two floors, or two separate zones.\u003c\/p\u003e\n\u003cp\u003eThe configuration presented here is based on the \u003cstrong\u003eSENA-18HF-MOA\u003c\/strong\u003e condenser, paired in the dual-zone product with \u003cstrong\u003etwo indoor units of 9,000 BTU each\u003c\/strong\u003e. The Senville brochure confirms the 9,000 + 9,000 BTU combination, as well as the inclusion of two 16 ft. installation kits in the configuration shown. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical reference to remember is \u003cstrong\u003eAHRI 215735311\u003c\/strong\u003e. This heat pump operates with \u003cstrong\u003eR454B\u003c\/strong\u003e, is designed for \u003cstrong\u003eheating down to -30 °C\u003c\/strong\u003e, offers \u003cstrong\u003e25 SEER2\u003c\/strong\u003e efficiency, is \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certified, and belongs to the category of systems suited to cold climates.\u003c\/p\u003e\n\u003cp\u003eOn paper, these figures are already impressive. In practice, it is primarily the distribution of capacity between the two zones, the length of the lines, the positioning of the indoor units, and the heat load of each room that determine whether the system will actually be comfortable.\u003c\/p\u003e\n\u003ch3\u003eWhat the 2-zone configuration actually includes\u003c\/h3\u003e\n\u003cp\u003ePage 4 of the brochure specifies that the package includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 indoor units of 9,000 BTU each\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 outdoor unit\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ethe wireless remote controls;\u003c\/li\u003e\n\u003cli\u003ea USB Wi-Fi kit;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 16 ft. installation kits\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ethe wiring between the units;\u003c\/li\u003e\n\u003cli\u003ethe installation manual. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is therefore indeed a \u003cstrong\u003eDual-Zone 9,000 + 9,000 BTU system\u003c\/strong\u003e, even though the SENA-18HF-MOA outdoor platform is listed in the technical documentation as compatible with \u003cstrong\u003e2 to 3 zones\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis distinction is important when comparing products online. The fact that a condenser can accommodate different configurations does not mean that the product sold here includes three indoor units. The configuration we are interested in consists of \u003cstrong\u003etwo wall-mounted units\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e18,000 BTU in the name, but 19,000 BTU of cooling capacity in the technical specifications\u003c\/h3\u003e\n\u003cp\u003eThe commercial nomenclature refers to an \u003cstrong\u003e18,000 BTU\u003c\/strong\u003e system, but Senville states in its technical documentation:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003erated cooling capacity: 19,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ecooling range: \u003cstrong\u003e5,400 to 28,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003enominal heating capacity: \u003cstrong\u003e20,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eheating range: \u003cstrong\u003e5,700 to 27,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis detail is particularly revealing of Inverter technology.\u003c\/p\u003e\n\u003cp\u003eA multizone system does not constantly produce exactly 9,000 BTU at each head. The condenser modulates its capacity and distributes it according to the zones’ active demands.\u003c\/p\u003e\n\u003cp\u003eIf one room requires substantial heating while the other is already at temperature, the compressor load is not necessarily divided into exactly two equal shares.\u003c\/p\u003e\n\u003cp\u003eThis is precisely what makes the design of a \u003cstrong\u003e2-zone heat pump\u003c\/strong\u003e more interesting than a simple “9,000 + 9,000 = 18,000” calculation.\u003c\/p\u003e\n\u003ch3\u003eA very wide modulation range for two rooms with different needs\u003c\/h3\u003e\n\u003cp\u003eThe published heating range, from \u003cstrong\u003e5,700 to 27,000 BTU\/h\u003c\/strong\u003e, gives the compressor considerable leeway to adjust its output. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eLet’s take a typical example in a duplex in \u003cstrong\u003eMontreal\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA 9,000 BTU head is installed in the ground-floor living room, which has several windows and an exterior door. The second is installed in a large bedroom upstairs.\u003c\/p\u003e\n\u003cp\u003eOn an autumn day, the bedroom may require very little heat while the living room receives more cold air when the door is opened. The Inverter system can adjust its operation instead of constantly producing its maximum capacity.\u003c\/p\u003e\n\u003cp\u003eThis modulation generally makes it possible:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eto limit unnecessary on-off cycles;\u003c\/li\u003e\n\u003cli\u003eto maintain more stable temperatures;\u003c\/li\u003e\n\u003cli\u003eto operate longer at low capacity;\u003c\/li\u003e\n\u003cli\u003eto reduce noise fluctuations;\u003c\/li\u003e\n\u003cli\u003eto better match output to two different thermal loads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNevertheless, it is important to keep in mind that the two indoor units share the \u003cstrong\u003esame condenser\u003c\/strong\u003e. A multizone heat pump should therefore not be considered two completely independent systems capable of simultaneously handling any conflicting heating and cooling demand.\u003c\/p\u003e\n\u003cp\u003eEach zone can have its own setpoint temperature and airflow, but the system remains a shared system overall.\u003c\/p\u003e\n\u003ch3\u003e25 SEER2 and 15 EER2: particularly high efficiency for a multi-split system\u003c\/h3\u003e\n\u003cp\u003eSENVILLE lists:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 25.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 15.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region IV: 10.4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region V: 8.5\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal COP: 4.0\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe figure of 25 should be interpreted as a \u003cstrong\u003eSEER2\u003c\/strong\u003e, which is the value published in the current brochure.\u003c\/p\u003e\n\u003cp\u003eFor an 18,000 BTU multizone heat pump, this efficiency level is one of the model’s main selling points. Senville also presents the system as ENERGY STAR certified and claims reduced consumption compared with less efficient systems. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, however, we avoid directly converting a SEER2 rating into a dollar amount saved.\u003c\/p\u003e\n\u003cp\u003eA highly efficient heat pump installed in a poorly insulated building may consume more than a less efficient heat pump installed in a property with a low heat load.\u003c\/p\u003e\n\u003cp\u003eActual performance also depends on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe requested temperature;\u003c\/li\u003e\n\u003cli\u003ethe level of insulation;\u003c\/li\u003e\n\u003cli\u003ewindows;\u003c\/li\u003e\n\u003cli\u003esun exposure;\u003c\/li\u003e\n\u003cli\u003ethe number of operating hours;\u003c\/li\u003e\n\u003cli\u003ethe load of each of the two zones;\u003c\/li\u003e\n\u003cli\u003esizing;\u003c\/li\u003e\n\u003cli\u003eand the quality of the refrigeration installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eA true cold-climate heat pump down to -30 °C\u003c\/h3\u003e\n\u003cp\u003eThe brochure indicates a minimum outdoor heating temperature of \u003cstrong\u003e-30 °C\u003c\/strong\u003e, or -22 °F. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product sheet associated with pairing \u003cstrong\u003eAHRI 215735311\u003c\/strong\u003e provides particularly useful capacities for understanding what this represents during a Montreal winter:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20,000 BTU\/h at -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e19,000 BTU\/h at -15 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eapproximately \u003cstrong\u003e10,000 BTU\/h at -30 °C\u003c\/strong\u003e under the maximum published condition;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOP of approximately 2.53 at -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCOP of approximately 1.3 at -30 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese values show why the simple statement “operates at -30 °C” is insufficient for comparing heat pumps.\u003c\/p\u003e\n\u003cp\u003eAt -30 °C, the unit can still operate, but its available capacity is lower than at -8 °C.\u003c\/p\u003e\n\u003cp\u003eTo determine whether electric baseboard heaters or another supplemental heat source will be necessary, we must compare this capacity with the building’s \u003cstrong\u003eheat loss\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn a very well-insulated condo in \u003cstrong\u003eLaval\u003c\/strong\u003e, 10,000 BTU\/h at very low temperatures can represent a significant contribution. In an old Montreal duplex with substantial air leaks, the requirements may be much higher.\u003c\/p\u003e\n\u003ch3\u003eCapacity almost maintained at -15 °C\u003c\/h3\u003e\n\u003cp\u003eThe drop from \u003cstrong\u003e20,000 BTU\/h at -8 °C\u003c\/strong\u003e to approximately \u003cstrong\u003e19,000 BTU\/h at -15 °C\u003c\/strong\u003e deserves particular attention.\u003c\/p\u003e\n\u003cp\u003eThis means that the heat pump maintains substantial heating capacity across a temperature range that is very common in Quebec.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner who wants to reduce the use of electric baseboard heaters, capacity at moderate winter temperatures is often more important than performance at an extreme temperature reached only during certain periods.\u003c\/p\u003e\n\u003cp\u003eThis is exactly the type of data we use at AirGreen to compare two models that both display “-30 °C” on their marketing specifications.\u003c\/p\u003e\n\u003ch3\u003eWhy two 9,000 BTU heads can be more effective than a single large unit\u003c\/h3\u003e\n\u003cp\u003eOne of the most common scenarios involves two physically separate spaces.\u003c\/p\u003e\n\u003cp\u003eImagine a floor consisting of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea large primary bedroom;\u003c\/li\u003e\n\u003cli\u003ean office or a second bedroom on the other side of the corridor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA single 18,000 BTU heat pump in the hallway might have sufficient total capacity, but that does not guarantee that the air will reach both rooms properly, especially when the doors are closed.\u003c\/p\u003e\n\u003cp\u003eWith two 9,000 BTU units, each space receives its own direct airflow.\u003c\/p\u003e\n\u003cp\u003eThis allows us to distribute air more precisely without needing two outdoor condensers.\u003c\/p\u003e\n\u003ch3\u003eOne condenser: a concrete advantage in dense neighborhoods\u003c\/h3\u003e\n\u003cp\u003eIn \u003cstrong\u003eMontreal\u003c\/strong\u003e, the number of outdoor units is not just an aesthetic issue.\u003c\/p\u003e\n\u003cp\u003eIn plexes and closely spaced homes, we often have to work around:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003enarrow side passages;\u003c\/li\u003e\n\u003cli\u003ebalconies;\u003c\/li\u003e\n\u003cli\u003ebrick walls;\u003c\/li\u003e\n\u003cli\u003eclosely spaced windows;\u003c\/li\u003e\n\u003cli\u003eproperty-line limitations;\u003c\/li\u003e\n\u003cli\u003emunicipal restrictions;\u003c\/li\u003e\n\u003cli\u003eareas where noise must be controlled;\u003c\/li\u003e\n\u003cli\u003every little space for the piping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe recently completed a DoubleZone installation in \u003cstrong\u003eVilleray–Saint-Michel–Parc-Extension\u003c\/strong\u003e on a brick Montreal building where the available space, windows, and piping route required particularly precise planning. Although this project involved another brand, the design logic is exactly what we apply to Senville systems: \u003cstrong\u003etwo indoor zones while limiting the outdoor installation to a single condenser\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is often what makes a Dual Zone heat pump more appealing in an urban environment.\u003c\/p\u003e\n\u003ch2\u003eWhat we check at AirGreen before installing an SENVILLE 2-Zone 18,000 BTU\u003c\/h2\u003e\n\u003ch3\u003eTwo 9,000 BTU units do not mean that every room is suitable for 9,000 BTU\u003c\/h3\u003e\n\u003cp\u003eWe assess each zone separately.\u003c\/p\u003e\n\u003cp\u003eA 250 sq. ft. room with full southern exposure and a large picture window may have a greater load than a 400 sq. ft. room facing north and surrounded by heated rooms.\u003c\/p\u003e\n\u003cp\u003eWe specifically check:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003efloor area;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003ewindows;\u003c\/li\u003e\n\u003cli\u003esun exposure;\u003c\/li\u003e\n\u003cli\u003eexterior-facing walls;\u003c\/li\u003e\n\u003cli\u003eair infiltration;\u003c\/li\u003e\n\u003cli\u003ehow the room is used;\u003c\/li\u003e\n\u003cli\u003ecommunication with the other spaces.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe brochure suggests this range for applications covering approximately \u003cstrong\u003e750 to 1,250 sq. ft.\u003c\/strong\u003e, but this figure refers to a general scenario, not a guarantee for every property. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA 1,000 sq. ft. home with two large open areas can be an excellent candidate. A home of the same size with five enclosed rooms may require a different configuration.\u003c\/p\u003e\n\u003ch3\u003eThe published 2,131 CFM is not the airflow of the two indoor units\u003c\/h3\u003e\n\u003cp\u003eThe technical sheet mentions \u003cstrong\u003e2,130.7 CFM\u003c\/strong\u003e. It is important to read the table carefully: this value corresponds to the \u003cstrong\u003emaximum airflow of the outdoor unit\u003c\/strong\u003e, not the airflow delivered into the rooms by the two wall-mounted evaporators. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is an important detail because an isolated figure of “CFM 2,131” on a commercial specification sheet can easily be misinterpreted.\u003c\/p\u003e\n\u003cp\u003eComfort in both rooms depends on the airflow of each 9,000 BTU indoor unit, its fan speed, and above all its orientation.\u003c\/p\u003e\n\u003ch3\u003ePositioning the two units is more complex than with a single-split system.\u003c\/h3\u003e\n\u003cp\u003eOn a Dual Zone system, we seek to achieve good air distribution in \u003cstrong\u003etwo different spaces while maintaining a logical outdoor installation\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWe therefore need to find a compromise between:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe best position for the first unit;\u003c\/li\u003e\n\u003cli\u003ethe best position for the second one;\u003c\/li\u003e\n\u003cli\u003ethe total length of the lines;\u003c\/li\u003e\n\u003cli\u003eease of drainage;\u003c\/li\u003e\n\u003cli\u003ethe appearance of the line covers;\u003c\/li\u003e\n\u003cli\u003eaccess to the condenser;\u003c\/li\u003e\n\u003cli\u003ethe building’s drilling options.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA poor decision at the outset may save a few feet of piping while compromising comfort for the next ten years.\u003c\/p\u003e\n\u003cp\u003eWe therefore prioritize air distribution over ease of installation.\u003c\/p\u003e\n\u003ch3\u003e1\/4 in – 3\/8 in piping: each branch must be properly prepared\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates \u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e piping.\u003c\/p\u003e\n\u003cp\u003eThe system contains two refrigerant circuits running from the condenser to the indoor units. This means more connections than with a single-zone installation and, consequently, more points where workmanship quality matters.\u003c\/p\u003e\n\u003cp\u003eWe pay particular attention to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eflaring;\u003c\/li\u003e\n\u003cli\u003etightening;\u003c\/li\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003ebend radii;\u003c\/li\u003e\n\u003cli\u003ebranch lengths;\u003c\/li\u003e\n\u003cli\u003eleak tightness;\u003c\/li\u003e\n\u003cli\u003evacuum evacuation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOn a multizone system, a problem on a single branch can affect the operation of one zone and complicate troubleshooting.\u003c\/p\u003e\n\u003ch3\u003eR454B and a precharge covering up to 75 ft\u003c\/h3\u003e\n\u003cp\u003eThe brochure specifies a charge of \u003cstrong\u003e78.31 oz of R454B\u003c\/strong\u003e and a precharge advertised for up to \u003cstrong\u003e75 ft\u003c\/strong\u003e of piping. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis feature is particularly practical on a Dual Zone system because the two indoor units can be located in different areas of the building.\u003c\/p\u003e\n\u003cp\u003eHowever, the “75 ft” specification does not mean that we can improvise two routes of any length. The total limits, the lengths of each branch, and the height differences must comply with the manufacturer’s requirements.\u003c\/p\u003e\n\u003cp\u003eThe configuration sold in the brochure also includes \u003cstrong\u003etwo 16 ft assemblies\u003c\/strong\u003e, meaning an initial physical length well below the system’s maximum precharge capacity. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eR454B: professional installation is particularly important\u003c\/h3\u003e\n\u003cp\u003eR454B belongs to the A2L refrigerant category.\u003c\/p\u003e\n\u003cp\u003eThe brochure specifically highlights a \u003cstrong\u003eleak detection and diagnostic system\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor our HVAC work, this means using methods and equipment compatible with the refrigerant installed.\u003c\/p\u003e\n\u003cp\u003eA professional installation involves much more than mounting the units:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eline-set preparation;\u003c\/li\u003e\n\u003cli\u003eleak testing;\u003c\/li\u003e\n\u003cli\u003evacuuming;\u003c\/li\u003e\n\u003cli\u003eelectrical connections;\u003c\/li\u003e\n\u003cli\u003edrain management;\u003c\/li\u003e\n\u003cli\u003ecommissioning;\u003c\/li\u003e\n\u003cli\u003etesting of both zones;\u003c\/li\u003e\n\u003cli\u003everification of communication between the units.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is also a requirement specified by Senville to maintain the warranty conditions. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eElectrical circuit: 17.5 A MCA and 20 A maximum protection\u003c\/h3\u003e\n\u003cp\u003eThe official brochure states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epower supply: \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003evoltage range: 187 to 253 V;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eminimum circuit ampacity: 17.5 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003emaximum protection: 20 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe AirGreen listing rounds the MCA to \u003cstrong\u003e18 A\u003c\/strong\u003e, but the detailed manufacturer data is 17.5 A.\u003c\/p\u003e\n\u003cp\u003eWe always check the nameplate and applicable documentation at the time of installation before finalizing the electrical circuit.\u003c\/p\u003e\n\u003ch3\u003eA 137 lb condenser: the outdoor support must be designed for winter\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e37.24 in × 16.14 in × 31.89 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e137.35 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIts published outdoor sound level is \u003cstrong\u003e61.5 dB(A)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eMontreal, Laval, Longueuil, or on the South Shore\u003c\/strong\u003e, we think about winter from the day of installation.\u003c\/p\u003e\n\u003cp\u003eThe condenser must be positioned to limit:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003esnow accumulation;\u003c\/li\u003e\n\u003cli\u003eice from a roof;\u003c\/li\u003e\n\u003cli\u003evibrations;\u003c\/li\u003e\n\u003cli\u003eobstructions;\u003c\/li\u003e\n\u003cli\u003edefrosting difficulties;\u003c\/li\u003e\n\u003cli\u003eaccess problems during a service call.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOn a two-zone system where a single condenser serves two rooms, its location deserves even more attention: an outdoor failure or obstruction affects both zones.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi included: convenient when there are two zones\u003c\/h3\u003e\n\u003cp\u003eThe system includes a \u003cstrong\u003eUSB Wi-Fi kit\u003c\/strong\u003e and remote control through an app. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a Dual Zone system, this feature is especially useful.\u003c\/p\u003e\n\u003cp\u003eThe owner can adjust the temperatures in different rooms, create schedules, and manage the system without having to go find each remote control.\u003c\/p\u003e\n\u003cp\u003eIn a residence where one zone serves as an office during the day and the other as a bedroom at night, the schedules allow usage to be adapted to the occupants’ actual routine.\u003c\/p\u003e\n\u003ch3\u003eLogisVert subsidy: why the AirGreen listing says $2,400\u003c\/h3\u003e\n\u003cp\u003eThe heating capacity listed for this Senville is \u003cstrong\u003e20,000 BTU\/h at -8 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eHydro-Québec currently provides assistance of \u003cstrong\u003e$120 per 1,000 BTU\/h at -8 °C\u003c\/strong\u003e for an ENERGY STAR–certified cold-climate heat pump, subject to compliance with all program conditions. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe calculation is therefore:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e20 × $120 = $2,400\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis corresponds exactly to the \u003cstrong\u003e$2,400 LogisVert grant\u003c\/strong\u003e displayed for the model.\u003c\/p\u003e\n\u003cp\u003eHydro-Québec also specifies that the amount is determined according to the \u003cstrong\u003einstallation date\u003c\/strong\u003e, which means that the assistance must always be verified when the project is carried out. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eAnd in some multi-unit residential buildings?\u003c\/h3\u003e\n\u003cp\u003eSince June 15, 2026, certain eligible multi-unit residential buildings may benefit from an enhancement that increases the assistance to \u003cstrong\u003e$220 per 1,000 BTU\/h at -8 °C\u003c\/strong\u003e for an ENERGY STAR cold-climate wall-mounted heat pump, when all program criteria are met. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWith a capacity of 20,000 BTU\/h at -8 °C, this would theoretically represent:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e20 × $220 = $4,400\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis enhanced assistance is not automatic. The requirements include, in particular, the type of building and its eligibility for the multi-unit residential component.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore verify the program applicable to the address rather than presenting an amount as guaranteed.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a difference between the AirGreen product sheet and the brochure should be clarified\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet provided for this model indicates a warranty \u003cstrong\u003e10-10-0\u003c\/strong\u003e, namely ten years on the compressor, ten years on parts, and no manufacturer labor coverage, with the possibility of additional warranty coverage.\u003c\/p\u003e\n\u003cp\u003eThe attached Senville brochure indicates \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese two pieces of information are therefore not identical.\u003c\/p\u003e\n\u003cp\u003eThe coverage actually offered on an AirGreen installation must be confirmed on the \u003cstrong\u003efinal quote\u003c\/strong\u003e, according to the applicable program, product registration, and any additional protections included or purchased.\u003c\/p\u003e\n\u003cp\u003eWe consider this verification important, particularly when a customer compares two quotes solely based on the number of years displayed on a website.\u003c\/p\u003e\n\u003ch3\u003eThe most common mistakes to avoid with a 2-zone heat pump\u003c\/h3\u003e\n\u003ch4\u003eChoosing two identical heads simply because the total is 18,000 BTU\u003c\/h4\u003e\n\u003cp\u003eTwo rooms can have very different needs. The 9,000 + 9,000 combination should match the actual loads.\u003c\/p\u003e\n\u003ch4\u003ePositioning the units according to the shortest piping route\u003c\/h4\u003e\n\u003cp\u003eAn installation can be mechanically very clean while still blowing in the wrong direction. Comfort must remain the priority.\u003c\/p\u003e\n\u003ch4\u003eConfusing two zones with two independent systems\u003c\/h4\u003e\n\u003cp\u003eThe two units share a condenser and a common available capacity.\u003c\/p\u003e\n\u003ch4\u003eNeglecting the total length of the lines\u003c\/h4\u003e\n\u003cp\u003eA multi-split system requires more rigorous management of line lengths, elevation differences, and refrigerant charge.\u003c\/p\u003e\n\u003ch4\u003eInstall the condenser too close to the ground\u003c\/h4\u003e\n\u003cp\u003eA system advertised for temperatures down to -30 °C must be able to breathe when it snows. The outdoor installation must be adapted to Quebec’s climate.\u003c\/p\u003e\n\u003ch4\u003eComparing price alone\u003c\/h4\u003e\n\u003cp\u003eTwo quotes for “an 18,000 BTU Dual-Zone heat pump” can conceal significant differences: exact models, efficiency, capacity at -15 °C, warranty, brackets, electrical work, line length, and quality of commissioning.\u003c\/p\u003e\n\u003ch3\u003eWho do we primarily recommend this SENVILLE 2-Zone system to?\u003c\/h3\u003e\n\u003cp\u003eWe consider this configuration particularly suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003etwo bedrooms located in different areas;\u003c\/li\u003e\n\u003cli\u003ea ground floor and an enclosed room that does not receive enough air;\u003c\/li\u003e\n\u003cli\u003ean office and a bedroom;\u003c\/li\u003e\n\u003cli\u003ea small duplex or apartment where two zones need to be treated separately;\u003c\/li\u003e\n\u003cli\u003ea home where the available outdoor space does not allow for two outdoor units;\u003c\/li\u003e\n\u003cli\u003ea homeowner who wants to benefit from an \u003cstrong\u003eENERGY STAR cold-climate\u003c\/strong\u003e system down to -30 °C;\u003c\/li\u003e\n\u003cli\u003ea property where the LogisVert rebate significantly improves the project’s cost.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe would be more cautious if one of the two zones had a very high heating load or if several other enclosed rooms also needed to be heated and cooled.\u003c\/p\u003e\n\u003ch3\u003eWhy entrust a Dual-Zone installation to AirGreen?\u003c\/h3\u003e\n\u003cp\u003eA multi-split heat pump requires more planning than a single-split system.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we must consider the \u003cstrong\u003etwo indoor units\u003c\/strong\u003e, their drains, the two piping routes, the shared outdoor unit, the electrical circuit, and how the two zones behave when needs change.\u003c\/p\u003e\n\u003cp\u003eWe carry out this type of \u003cstrong\u003eHVAC installation in Montreal, Laval, Longueuil, on the South Shore, the North Shore, and in Montérégie\u003c\/strong\u003e, in single-family homes as well as in plexes and condos where physical constraints are much tighter.\u003c\/p\u003e\n\u003cp\u003eOur goal is not simply to manage to fit two 9,000 BTU units in the building. We want their location, capacity, and operation to truly match the two spaces the customer wants to control.\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen quote for the SENVILLE 2-Zone 18,000 BTU R454B\u003c\/h3\u003e\n\u003cp\u003eFor an \u003cstrong\u003eSENVILLE R454B 18,000 BTU 2-Zone Heat Pump\u003c\/strong\u003e in \u003cstrong\u003eMontreal, Laval, Longueuil, on the South Shore or the North Shore\u003c\/strong\u003e, contact AirGreen.\u003c\/p\u003e\n\u003cp\u003eWe can assess the load of each room, confirm the \u003cstrong\u003e9,000 + 9,000 BTU\u003c\/strong\u003e configuration, plan the routing of the two refrigerant lines, validate the electrical installation, and check eligibility for the \u003cstrong\u003e$2,400 LogisVert rebate\u003c\/strong\u003e under the current conditions.\u003c\/p\u003e\n\u003cp\u003eWith a Dual-Zone heat pump, the quality of the result depends just as much on choosing the two locations as on the performance listed on the technical data sheet.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"6 + 6","offer_id":56200888844580,"sku":"SENA-18HF-MOA","price":0.0,"currency_code":"CAD","in_stock":true},{"title":"6 + 12","offer_id":56200888877348,"sku":"SENA-18HF-MOA","price":0.0,"currency_code":"CAD","in_stock":true},{"title":"9 + 9","offer_id":56200888910116,"sku":"SENA-18HF-MOA","price":0.0,"currency_code":"CAD","in_stock":true},{"title":"9 + 12","offer_id":56200888942884,"sku":"SENA-18HF-MOA","price":0.0,"currency_code":"CAD","in_stock":true},{"title":"12 + 12","offer_id":56200888975652,"sku":"SENA-18HF-MOA","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_2_ZONES_SENVILLE_R454B_18000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789057698"},{"product_id":"thermopompe-2-zones-senville-r454b-27000-btu","title":"SENVILLE R454B 2-Zone Heat Pump | 27000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eTwo zones, one outdoor unit: why this SENVILLE is particularly interesting for Quebec homes that are difficult to cool with a single head\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eA multistory house, a condo with a living area separate from the bedrooms, or a bungalow whose living room and basement require different temperatures presents a problem we regularly encounter at AirGreen: \u003cstrong\u003ea single wall-mounted heat pump may have enough BTUs but be unable to distribute the air properly everywhere comfort is needed\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis is precisely where a \u003cstrong\u003eSENVILLE R454B two-zone heat pump\u003c\/strong\u003e, based on the \u003cstrong\u003eSENA-28HF-MOA\u003c\/strong\u003e outdoor unit, becomes relevant. Rather than installing two independent compressors on the exterior wall, we can connect several indoor units to a single outdoor unit and create two distinct comfort zones.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product sheet presents this configuration as a \u003cstrong\u003e27,000-BTU two-zone heat pump\u003c\/strong\u003e, while Senville documentation identifies the SENA-28HF-MOA outdoor unit as a nominal \u003cstrong\u003e28,000-BTU\u003c\/strong\u003e platform that can serve two to four zones, depending on the selected combination. The brochure confirms a nominal cooling capacity of 28,000 BTUs and a modulation range of approximately 9,838 to 30,438 BTU\/h. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the homeowner, this small nomenclature discrepancy does not change the essentials: before purchasing, what must be verified is \u003cstrong\u003ethe exact combination of indoor units, the corresponding AHRI reference, and the certified capacity of that combination\u003c\/strong\u003e, not just the commercial name shown on the box.\u003c\/p\u003e\n\u003cp\u003eFor the configuration published by AirGreen, the important data includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENA-28HF-MOA\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI reference: 215735314\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePublished cooling capacity: 27,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCold-climate certification: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR number: 3630061\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER: 23.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER: 12.5\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF: 10.5\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating down to: -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWiFi: included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 30 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 35 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound level: 61 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum outdoor airflow: approximately 2,130 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor dimensions: 37.24 × 16.14 × 31.89 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePiping: 1\/4 in – 3\/8 in for applicable connections\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eProvincial rebate indicated on the AirGreen product sheet: $3,600\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTwo zones do not simply mean “two times 13,500 BTUs”\u003c\/h3\u003e\n\u003cp\u003eThis is probably the most important point to understand about a multi-zone heat pump.\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003etwo-zone heat pump\u003c\/strong\u003e does not necessarily divide its 27,000 or 28,000 BTUs into two fixed and equal portions.\u003c\/p\u003e\n\u003cp\u003eThe inverter compressor adjusts its output according to the simultaneous demand from the indoor units. If one zone has a high heating demand while the second is nearly satisfied, a larger portion of the available capacity can be directed to the active zone, within the limits of the operating conditions and the installed combination.\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure confirms a heating range of \u003cstrong\u003e8,218 to 31,000 BTU\/h\u003c\/strong\u003e, with an advertised nominal capacity of 28,000 BTU. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation explains why a multi-zone system must be designed according to the \u003cstrong\u003eroom loads\u003c\/strong\u003e, rather than simply adding the numbers listed on the indoor units.\u003c\/p\u003e\n\u003cp\u003eA combination including, for example, two 12,000 BTU units does not necessarily mean that the compressor will constantly provide 12,000 BTU to each one. Demand varies continuously.\u003c\/p\u003e\n\u003ch3\u003eA practical advantage for a two-story home\u003c\/h3\u003e\n\u003cp\u003eLet’s consider a scenario we frequently encounter in \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe ground floor of a \u003cstrong\u003eSouth Shore\u003c\/strong\u003e home is open, with a living room, dining room, and kitchen. The upper floor contains three bedrooms connected by a hallway.\u003c\/p\u003e\n\u003cp\u003eInstalling a single very high-capacity unit in the living room could cool the ground floor effectively, but the cool air would not naturally rise to the bedrooms evenly. In heating mode, the behavior will be different again, since warm air tends to rise, sometimes at the expense of comfort on the ground floor.\u003c\/p\u003e\n\u003cp\u003eWith two zones, we can instead position:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ean indoor unit in the main living area;\u003c\/li\u003e\n\u003cli\u003ea second unit in a strategic area upstairs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe result is not simply an increase in capacity. Above all, it is \u003cstrong\u003ebetter distribution of heating and cooling\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eTwo thermostats, two truly independent temperatures\u003c\/h3\u003e\n\u003cp\u003eEach indoor unit has its own control.\u003c\/p\u003e\n\u003cp\u003eThis means that a homeowner could request, for example:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e21 °C on the ground floor\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e19 °C in the bedrooms\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAt night, the needs may be reversed. The living room zone may require very little heating while the bedroom zone remains active.\u003c\/p\u003e\n\u003cp\u003eThis independence is one of the main advantages of a \u003cstrong\u003emulti-zone heat pump\u003c\/strong\u003e compared with a single large wall-mounted unit.\u003c\/p\u003e\n\u003cp\u003eHowever, it is important to understand a fundamental limitation of multi-zone systems: indoor units connected to the same outdoor unit must normally operate in compatible modes. With a conventional reversible compressor, you cannot continuously request cooling in one zone and heating in another.\u003c\/p\u003e\n\u003cp\u003eThis is a detail we always explain before installation, particularly in buildings where some rooms receive a great deal of sunlight while others remain cold.\u003c\/p\u003e\n\u003ch3\u003e-30 °C: the SENVILLE continues to heat, but the available capacity changes\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate heating operation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, and the Senville brochure also confirms a minimum outdoor operating temperature of \u003cstrong\u003e-22 °F \/ -30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe “-30 °C” designation must nevertheless be interpreted correctly.\u003c\/p\u003e\n\u003cp\u003eIt does not mean that the system produces its full nominal capacity of 27,000 or 28,000 BTU at that temperature.\u003c\/p\u003e\n\u003cp\u003eThe data published by AirGreen notably indicates:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eOutdoor temperature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eHeating capacity\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-8 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e30,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-15 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e27,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-30 °C maximum\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e14,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe stated COP is approximately \u003cstrong\u003e2.36 at -8 °C\u003c\/strong\u003e and \u003cstrong\u003e1.26 at -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis information is extremely useful for a Quebec home.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-8 °C\u003c\/strong\u003e, the published heating capacity is even higher than the machine's nominal capacity. At \u003cstrong\u003e-15 °C\u003c\/strong\u003e, it remains substantial. But when we reach \u003cstrong\u003e-30 °C\u003c\/strong\u003e, the maximum capacity drops to approximately 14,000 BTU\/h.\u003c\/p\u003e\n\u003cp\u003eThis heat pump can therefore continue heating during a period of intense cold, but it may need the support of supplemental heating if the property's heat loss exceeds the heat it can produce at that point.\u003c\/p\u003e\n\u003ch3\u003eWhy the COP at -30 °C must be understood before evaluating savings\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003eCOP of 1.26\u003c\/strong\u003e means approximately that for each unit of electrical energy consumed, the heat pump transfers 1.26 units of heat.\u003c\/p\u003e\n\u003cp\u003eAt more moderate temperatures, a COP of \u003cstrong\u003e2.36 at -8 °C\u003c\/strong\u003e is considerably more advantageous.\u003c\/p\u003e\n\u003cp\u003eThat is why the annual savings from a heat pump should never be judged solely by its performance on the coldest day in January.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eMontreal, Laval, Longueuil, on the North Shore or South Shore\u003c\/strong\u003e, much of the heating season takes place at temperatures far milder than -30 °C. During these hundreds of operating hours, the heat pump can significantly reduce the use of electric baseboard heaters or another backup heating system.\u003c\/p\u003e\n\u003ch3\u003eCold-climate and ENERGY STAR certification\u003c\/h3\u003e\n\u003cp\u003eFor this AirGreen configuration, the SENVILLE is identified as:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR: yes\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eCold Climate: yes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSenville documentation also confirms that the SENA-28HF-MOA is marketed as an \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e system and as a cold-climate heat pump capable of operating down to -30 °C. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis distinction is important in Quebec, particularly when the heat pump is selected as part of a financial assistance application.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product sheet indicates a \u003cstrong\u003e$3,600 provincial rebate\u003c\/strong\u003e for the combination in question. As with any financial assistance, we recommend confirming the eligibility of the exact combination installed and the applicable conditions at the time of the project.\u003c\/p\u003e\n\u003cp\u003eWith a multi-zone system, this verification is all the more important because the same outdoor unit can support different combinations of indoor units.\u003c\/p\u003e\n\u003ch3\u003eThe AHRI number matters more than the series name\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENA-28HF-MOA\u003c\/strong\u003e unit is a multi-zone platform. The brochure states that it can be configured for \u003cstrong\u003e2 to 4 zones\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe product sheet shown in the brochure presents, for example, a combination with \u003cstrong\u003etwo 12,000 BTU indoor units each\u003c\/strong\u003e and two 16 ft installation kits. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis does not mean that all possible combinations have exactly the same certified performance.\u003c\/p\u003e\n\u003cp\u003eFor AirGreen, the \u003cstrong\u003eAHRI 215735314\u003c\/strong\u003e reference associated with the product is therefore essential. When a homeowner compares quotes, they should always verify:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe outdoor unit model number;\u003c\/li\u003e\n\u003cli\u003ethe indoor unit models;\u003c\/li\u003e\n\u003cli\u003ethe AHRI combination;\u003c\/li\u003e\n\u003cli\u003elow-temperature heating capacity;\u003c\/li\u003e\n\u003cli\u003eENERGY STAR status;\u003c\/li\u003e\n\u003cli\u003eeligibility for the subsidy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSimply comparing “Senville 28,000 BTU” with another 28,000 BTU heat pump is not enough.\u003c\/p\u003e\n\u003ch2\u003eInstallation, energy consumption, and technical details: what we verify before recommending this SENVILLE 2-zone system\u003c\/h2\u003e\n\u003ch3\u003e23 SEER2: high cooling efficiency\u003c\/h3\u003e\n\u003cp\u003eThe Senville brochure displays \u003cstrong\u003e23 SEER2 ENERGY STAR\u003c\/strong\u003e for the system, and its technical table indicates a SEER of 23.8 and an \u003cstrong\u003eEER of 12.5\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen data sheet lists \u003cstrong\u003eSEER 23.0\u003c\/strong\u003e and EER 12.5.\u003c\/p\u003e\n\u003cp\u003eThese differences may result from the type of data displayed, the combination of indoor units, or the certification method. We therefore avoid using a single figure to compare two multi-zone systems without verifying their exact configuration.\u003c\/p\u003e\n\u003cp\u003eIn practice, the important point for the homeowner is that this is a high-efficiency multi-zone heat pump designed to modulate rather than operate constantly at maximum capacity.\u003c\/p\u003e\n\u003ch3\u003eR-454B: an important consideration for a new installation\u003c\/h3\u003e\n\u003cp\u003eThis generation uses \u003cstrong\u003eR-454B refrigerant\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe brochure indicates a charge of \u003cstrong\u003e120.61 oz\u003c\/strong\u003e and a precharge allowing up to \u003cstrong\u003e100 ft of piping\u003c\/strong\u003e, depending on the configuration specified by the manufacturer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a multi-zone system, the total piping length is particularly important, because each indoor unit has its own route to the outdoor unit.\u003c\/p\u003e\n\u003cp\u003eIn a two-story home in \u003cstrong\u003eLaval\u003c\/strong\u003e, for example, a ground-floor head may be 15 ft from the compressor, while a head located upstairs may require 35 or 40 ft of piping.\u003c\/p\u003e\n\u003cp\u003eWe therefore calculate the piping routes before confirming the location of the outdoor unit.\u003c\/p\u003e\n\u003cp\u003eAn installation where the piping unnecessarily runs throughout the entire building increases costs, multiplies the areas that need to be covered, and complicates future maintenance.\u003c\/p\u003e\n\u003ch3\u003ePiping: do not extrapolate a single size to every configuration\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates \u003cstrong\u003e1\/4 in. – 3\/8 in.\u003c\/strong\u003e for the piping.\u003c\/p\u003e\n\u003cp\u003eFor a multi-zone heat pump, however, the diameters must always be confirmed according to the \u003cstrong\u003eactual connected indoor units\u003c\/strong\u003e. The requirements of a small-capacity head may differ from those of a larger head.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore do not order the piping simply based on the total tonnage of the outdoor unit.\u003c\/p\u003e\n\u003ch3\u003eMCA 30 A and MOP 35 A\u003c\/h3\u003e\n\u003cp\u003eThe technical documentation states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 30 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 35 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003epower supply: \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003evoltage range: \u003cstrong\u003e187 to 253 V\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eMCA\u003c\/strong\u003e represents the minimum circuit ampacity required based on the equipment specifications, while the \u003cstrong\u003eMOP\u003c\/strong\u003e indicates the maximum overcurrent protection permitted for the unit.\u003c\/p\u003e\n\u003cp\u003eThese are essential data for planning the electrical circuit correctly.\u003c\/p\u003e\n\u003cp\u003eA common mistake is choosing the circuit breaker solely based on the nominal BTU capacity. Instead, the electrical specifications listed in the documentation and on the nameplate should guide the installation.\u003c\/p\u003e\n\u003ch3\u003eA 168 lb outdoor unit: the support deserves serious consideration\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit measures \u003cstrong\u003e37.24 in. wide × 16.14 in. deep × 31.89 in. high\u003c\/strong\u003e and weighs approximately \u003cstrong\u003e168.43 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is not a small 9,000 BTU unit.\u003c\/p\u003e\n\u003cp\u003eWe must provide a support suited to its weight, height, and winter conditions.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eMontreal and on the South Shore\u003c\/strong\u003e, we regularly see older installations where an outdoor unit is almost at ground level. After a heavy snowfall, the lower heat exchanger may be partially blocked.\u003c\/p\u003e\n\u003cp\u003eFor a heat pump designed to operate down to -30 °C, this mistake is particularly counterproductive.\u003c\/p\u003e\n\u003cp\u003eWe look for a location where:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003esnow does not block the heat exchanger;\u003c\/li\u003e\n\u003cli\u003edefrost water can drain away;\u003c\/li\u003e\n\u003cli\u003eair circulates freely;\u003c\/li\u003e\n\u003cli\u003ethe unit remains accessible for maintenance;\u003c\/li\u003e\n\u003cli\u003evibrations are not unnecessarily transmitted to the building.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApproximately 2,130 CFM through the outdoor unit\u003c\/h3\u003e\n\u003cp\u003eThe published maximum outdoor airflow is \u003cstrong\u003e2,129.41 CFM\u003c\/strong\u003e, or approximately 2,130 CFM. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis figure explains why clearance around the outdoor unit is essential.\u003c\/p\u003e\n\u003cp\u003eA heat pump installed too close to a wall, enclosed under a deck, or surrounded by objects may draw back in some of the air it has just discharged and operate under less favorable conditions.\u003c\/p\u003e\n\u003cp\u003eWe therefore plan the location before even determining the pipe route.\u003c\/p\u003e\n\u003ch3\u003e61 dB(A) outdoors: choosing the right wall\u003c\/h3\u003e\n\u003cp\u003eThe stated outdoor sound level is \u003cstrong\u003e61 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a detached house with plenty of side space, this value is rarely the only decisive factor.\u003c\/p\u003e\n\u003cp\u003eIn a \u003cstrong\u003eMontreal\u003c\/strong\u003e plex or a \u003cstrong\u003eLaval\u003c\/strong\u003e condo, or on a property where the houses are close together, placement deserves more attention.\u003c\/p\u003e\n\u003cp\u003eWe avoid placing the outdoor unit directly near, whenever possible:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea bedroom window;\u003c\/li\u003e\n\u003cli\u003ea patio;\u003c\/li\u003e\n\u003cli\u003ea frequently used balcony;\u003c\/li\u003e\n\u003cli\u003ea nearby window;\u003c\/li\u003e\n\u003cli\u003ea corner formed by several walls that may reflect noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAn acoustically acceptable system on paper may seem more noticeable when installed in a location that amplifies vibrations or sound reflections.\u003c\/p\u003e\n\u003ch3\u003eWiFi included and smart control\u003c\/h3\u003e\n\u003cp\u003eSENVILLE enables smart control, and the brochure confirms integration with \u003cstrong\u003eAlexa as well as control through the app\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a two-zone installation, WiFi is more useful than it may seem.\u003c\/p\u003e\n\u003cp\u003eThe homeowner can manage both zones without walking through the house to adjust each remote control. For a second home or rental property, they can also adjust the temperatures remotely.\u003c\/p\u003e\n\u003cp\u003eWe consider this feature a complement to the control system, not a substitute for proper sizing. An app cannot compensate for a poorly placed indoor unit.\u003c\/p\u003e\n\u003ch3\u003eAutomatic louvers improve air distribution\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate \u003cstrong\u003eautomatic vertical and automatic horizontal louvers\u003c\/strong\u003e for the units concerned.\u003c\/p\u003e\n\u003cp\u003eIn a large room, this movement allows the air to be distributed over a wider area.\u003c\/p\u003e\n\u003cp\u003ePositioning remains much more important than oscillation, however.\u003c\/p\u003e\n\u003cp\u003eA unit installed above a tall cabinet, facing a wall a few feet away, or in an enclosed corridor may remain limited, even with motorized louvers.\u003c\/p\u003e\n\u003ch3\u003eHow we choose the two indoor locations\u003c\/h3\u003e\n\u003cp\u003eFor a \u003cstrong\u003emulti-zone HVAC installation\u003c\/strong\u003e, we want to achieve the best possible airflow with each unit.\u003c\/p\u003e\n\u003cp\u003eWe look at, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe shape of the rooms;\u003c\/li\u003e\n\u003cli\u003edoors that generally remain open or closed;\u003c\/li\u003e\n\u003cli\u003estairs;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003eexterior walls;\u003c\/li\u003e\n\u003cli\u003ewindow placement;\u003c\/li\u003e\n\u003cli\u003emajor heat sources;\u003c\/li\u003e\n\u003cli\u003ethe possible drain route;\u003c\/li\u003e\n\u003cli\u003ethe refrigerant line route;\u003c\/li\u003e\n\u003cli\u003efuture access for \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a bedroom, we also avoid directing the airflow straight toward the bed when the layout allows for a better location.\u003c\/p\u003e\n\u003ch3\u003eWhy two smaller zones can be better than a single large head\u003c\/h3\u003e\n\u003cp\u003eWe often have homeowners who think only in terms of total capacity: “If I need 24,000 BTU, why not install a single 24,000 BTU unit?”\u003c\/p\u003e\n\u003cp\u003eBecause a heat pump heats and cools with \u003cstrong\u003eair\u003c\/strong\u003e, and air does not travel effectively through several closed walls.\u003c\/p\u003e\n\u003cp\u003eA 24,000 BTU unit in the living room will not necessarily provide better comfort in a bedroom at the other end of the building than a much smaller unit installed directly in that zone.\u003c\/p\u003e\n\u003cp\u003eIn this type of situation, \u003cstrong\u003edistribution may be more important than raw capacity\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis is one of the key advantages of the SENVILLE 2-zone system.\u003c\/p\u003e\n\u003ch3\u003eBeware of oversizing indoor units\u003c\/h3\u003e\n\u003cp\u003eThe opposite mistake also exists.\u003c\/p\u003e\n\u003cp\u003eSince two heads are available, it may be tempting to choose the largest possible capacity for each one.\u003c\/p\u003e\n\u003cp\u003eWe prefer to match each head to the load of its zone. A well-insulated bedroom or small floor does not necessarily need 12,000 BTU simply because the outdoor unit can accommodate it.\u003c\/p\u003e\n\u003cp\u003eAn indoor unit that is too large can quickly reach its setpoint and provide less favorable modulation in a small room.\u003c\/p\u003e\n\u003ch3\u003eLeak detection and self-diagnosis\u003c\/h3\u003e\n\u003cp\u003eSenville also highlights \u003cstrong\u003eself-diagnosis and leak detection\u003c\/strong\u003e functions, designed to facilitate the identification of certain operating problems. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese functions can assist with diagnosis, but they obviously do not replace a professional inspection when a system loses capacity, makes noise, produces abnormal ice buildup, or displays an error code.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a difference to verify between the AirGreen sheet and the brochure\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen sheet indicates a manufacturer’s warranty of \u003cstrong\u003e10-10-0\u003c\/strong\u003e, namely:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years compressor – 10 years parts – 0 years labor\u003c\/strong\u003e, with the possibility of additional coverage.\u003c\/p\u003e\n\u003cp\u003eHowever, the Senville brochure provided with the product states \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. This information appears both in the sales presentation and in the brochure’s technical table. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference should be confirmed at the time of purchase based on \u003cstrong\u003ethe exact combination, purchase date, and applicable registration conditions\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we prefer to verify the coverage that actually applies rather than automatically presenting the longest warranty when contradictory documentation exists.\u003c\/p\u003e\n\u003ch3\u003eMaintaining a multi-zone heat pump: two indoor units to monitor\u003c\/h3\u003e\n\u003cp\u003eA 2-zone system also means two filters, two indoor heat exchangers, two fans, and two drains.\u003c\/p\u003e\n\u003cp\u003eBoth zones therefore need to be maintained.\u003c\/p\u003e\n\u003cp\u003eAmong the signs that warrant an inspection or cleaning:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ereduced airflow;\u003c\/li\u003e\n\u003cli\u003eodor at startup;\u003c\/li\u003e\n\u003cli\u003evisible dust on the fan wheel;\u003c\/li\u003e\n\u003cli\u003ewater flowing inside;\u003c\/li\u003e\n\u003cli\u003esignificant difference in output between zones;\u003c\/li\u003e\n\u003cli\u003eunusual noise;\u003c\/li\u003e\n\u003cli\u003eabnormal frost or ice;\u003c\/li\u003e\n\u003cli\u003eunusual increase in consumption.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA head that operates very frequently in a busy living room can become dirty more quickly than a unit installed in a bedroom used only at night.\u003c\/p\u003e\n\u003ch3\u003eWho do we recommend this SENVILLE R454B 2-zone system for?\u003c\/h3\u003e\n\u003cp\u003eThis solution is particularly well suited for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea \u003cstrong\u003etwo-story home\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea ground floor and basement requiring independent controls;\u003c\/li\u003e\n\u003cli\u003etwo large separate rooms;\u003c\/li\u003e\n\u003cli\u003ea condo with a main living area and a separate bedroom zone;\u003c\/li\u003e\n\u003cli\u003ea property where avoiding two outdoor units is desired;\u003c\/li\u003e\n\u003cli\u003ea project seeking a \u003cstrong\u003ecold-climate ENERGY STAR heat pump\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea residence where low-temperature heating is a priority;\u003c\/li\u003e\n\u003cli\u003ea homeowner seeking \u003cstrong\u003ebuilt-in WiFi\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is less advantageous when two zones have completely opposite needs for extended periods, or when the indoor units would be installed in rooms that are too small for their minimum capacity.\u003c\/p\u003e\n\u003ch3\u003eA strong technical specification sheet is not enough: the result depends on the installation\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE SENA-28HF-MOA combines several features that are particularly relevant in Québec: \u003cstrong\u003eR-454B, operation down to -30 °C, cold-climate certification, ENERGY STAR, high seasonal efficiency, and multi-zone management\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eBut the numbers do not replace design work.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we assess the building, the loads of the different rooms, the locations of the two heads, piping routes, drainage, electrical installation, and outdoor unit placement before confirming the configuration.\u003c\/p\u003e\n\u003cp\u003eThis approach is particularly important with a multi-zone heat pump because the outdoor unit, indoor units, and line lengths must operate as a single system.\u003c\/p\u003e\n\u003ch3\u003eSENVILLE 2-zone installation in Montréal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/h3\u003e\n\u003cp\u003eFor a property in \u003cstrong\u003eMontréal, Laval, Longueuil, Boucherville, Terrebonne, Blainville, or elsewhere on the North Shore and South Shore\u003c\/strong\u003e, we can verify whether a \u003cstrong\u003eSENVILLE 2-zone 27,000 BTU configuration with a SENA-28HF-MOA outdoor unit\u003c\/strong\u003e truly meets the building’s needs.\u003c\/p\u003e\n\u003cp\u003eWe can also validate the AHRI combination, low-temperature capacities, electrical requirements, indoor and outdoor locations, as well as the subsidy applicable to the project.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen for a quote and to have your SENVILLE 2-zone heat pump properly sized. Proper configuration is not simply a matter of BTU count: it starts with choosing the right two zones and ends with an HVAC installation designed to operate efficiently during Montréal’s humid summers and winters.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"12 + 12","offer_id":56200890908964,"sku":"SENA-28HF-MOA","price":0.0,"currency_code":"CAD","in_stock":true},{"title":"12 + 18","offer_id":56200890941732,"sku":"SENA-28HF-MOA","price":0.0,"currency_code":"CAD","in_stock":true},{"title":"9 + 18","offer_id":56200890974500,"sku":"SENA-28HF-MOA","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_2_ZONES_SENVILLE_R454B_27000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789057708"},{"product_id":"thermopompe-2-zones-senville-r454b-36000-btu","title":"SENVILLE R454B 2-Zone Heat Pump | 36000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eTwo zones, a single outdoor compressor, and capacity designed for a true Québec winter\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eA \u003cstrong\u003e36,000 BTU 2-zone heat pump\u003c\/strong\u003e meets a very different need from a single-zone wall-mounted heat pump. It can heat and cool two distinct areas of a property from a single outdoor unit, while giving each zone its own indoor unit and temperature control.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA-36HF-MOA R454B\u003c\/strong\u003e is particularly interesting in this category because it combines a nominal capacity of \u003cstrong\u003e36,000 BTU\u003c\/strong\u003e, an efficiency rating of \u003cstrong\u003e23 SEER2\u003c\/strong\u003e, \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certification, heating operation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, included Wi-Fi, and a multi-zone architecture that can be configured according to the building's needs. Senville documentation presents the SENA-36HF\/D system as a 36,000 BTU ductless heat pump designed for multi-zone applications and ENERGY STAR certified. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the \u003cstrong\u003e2-zone\u003c\/strong\u003e configuration, the manufacturer's page illustrates, among other options, an \u003cstrong\u003e18,000 BTU + 18,000 BTU\u003c\/strong\u003e pairing, with two indoor units powered by a single outdoor unit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, this type of system is particularly relevant in Greater Montréal when a homeowner wants to replace two old air conditioners, heat two floors without installing ductwork, or better control two large zones with different heating and cooling loads.\u003c\/p\u003e\n\u003cp\u003eThe configuration shown includes, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENA-36HF-MOA\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNominal cooling capacity: 36,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735317\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR reference: 3630064\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 23.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 13.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region 4: 10.7\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating down to -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 37 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 40 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound level: 65 dB\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum outdoor airflow: approximately 3,038 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSpecified piping: 1\/4 in – 1\/2 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAdditional warranty available\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndicated provincial financial assistance: up to $4,560\u003c\/strong\u003e, subject to applicable eligibility conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy the 2-zone format may make more sense than two independent heat pumps\u003c\/h3\u003e\n\u003cp\u003eIn many properties in \u003cstrong\u003eMontréal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/strong\u003e, installing two independent outdoor units is not always desirable.\u003c\/p\u003e\n\u003cp\u003eOutdoor space may be limited. A condominium association may impose certain restrictions. A side façade may already contain an electrical meter, a gas line, a basement window, or a narrow passage.\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003emulti-zone heat pump\u003c\/strong\u003e can then connect two indoor units to a single outdoor unit.\u003c\/p\u003e\n\u003cp\u003eThis notably simplifies:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe use of the outdoor space;\u003c\/li\u003e\n\u003cli\u003ethe appearance of the installation;\u003c\/li\u003e\n\u003cli\u003ethe number of visible mechanical units;\u003c\/li\u003e\n\u003cli\u003ecertain portions of the electrical connection;\u003c\/li\u003e\n\u003cli\u003emanaging two separate spaces with a single outdoor platform.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHowever, it is important to understand that a multi-zone system is not simply “two heat pumps combined in one box.” The two indoor units share the available capacity of the same outdoor compressor.\u003c\/p\u003e\n\u003cp\u003eThis is precisely where sizing becomes important.\u003c\/p\u003e\n\u003ch3\u003e36,000 BTU outdoors does not necessarily mean a constant 18,000 BTU in each room\u003c\/h3\u003e\n\u003cp\u003eSenville documentation indicates a \u003cstrong\u003enominal heating capacity of 36,000 BTU\/h\u003c\/strong\u003e, with a modulating range from \u003cstrong\u003e10,000 to 44,000 BTU\/h\u003c\/strong\u003e. In cooling mode, the stated range extends from \u003cstrong\u003e9,000 to 43,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation is one of the important features of an inverter system.\u003c\/p\u003e\n\u003cp\u003eConsider a configuration with two 18,000 BTU indoor units. This does not mean that each one constantly receives exactly 18,000 BTU.\u003c\/p\u003e\n\u003cp\u003eIf a single zone requires a great deal of heating while the second is already close to its setpoint, the compressor can adjust its output. Conversely, when both zones simultaneously require substantial capacity, the outdoor unit must distribute what it can produce between the two indoor units.\u003c\/p\u003e\n\u003cp\u003eThis distinction is essential for a successful installation.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore seek to understand not only the total area, but also \u003cstrong\u003ethe load of each zone\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eA very common layout: open ground floor and upper floor with bedrooms\u003c\/h3\u003e\n\u003cp\u003eIn a \u003cstrong\u003eSouth Shore\u003c\/strong\u003e home, for example, the ground floor may include the living room, dining room, and kitchen in one large open area, while the upper floor contains several bedrooms accessible from a hallway.\u003c\/p\u003e\n\u003cp\u003eInstalling an identical indoor unit on each floor may seem simple, but the needs may differ.\u003c\/p\u003e\n\u003cp\u003eThe ground floor may experience greater solar gains in the afternoon. The upper floor may accumulate heat in the summer. An open stairwell can allow warm air to rise and alter the balance between the two zones.\u003c\/p\u003e\n\u003cp\u003eWe must then take into account:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe location of each indoor unit;\u003c\/li\u003e\n\u003cli\u003enatural air circulation;\u003c\/li\u003e\n\u003cli\u003edoor layout;\u003c\/li\u003e\n\u003cli\u003esun exposure;\u003c\/li\u003e\n\u003cli\u003eattic insulation;\u003c\/li\u003e\n\u003cli\u003ethe area actually open to the unit;\u003c\/li\u003e\n\u003cli\u003ethe heat loss from each floor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is often this design work that determines whether a \u003cstrong\u003e2-zone heat pump\u003c\/strong\u003e will be comfortable in every room.\u003c\/p\u003e\n\u003ch3\u003eA 23 SEER2 rating that puts summer efficiency first\u003c\/h3\u003e\n\u003cp\u003eThe technical documentation confirms a rating of \u003cstrong\u003e23 SEER2\u003c\/strong\u003e and an \u003cstrong\u003eEER2 of 13\u003c\/strong\u003e for the SENA-36HF-MOA. It also indicates an HSPF2 of \u003cstrong\u003e10.7 for Region 4\u003c\/strong\u003e and \u003cstrong\u003e8.5 for Region 5\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSEER2 represents seasonal cooling efficiency according to a standardized testing methodology.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner who uses air conditioning extensively in \u003cstrong\u003eMontreal or Laval\u003c\/strong\u003e, a SEER2 rating of 23 is therefore highly relevant.\u003c\/p\u003e\n\u003cp\u003eHowever, we advise against selecting a heat pump based solely on its SEER2 rating.\u003c\/p\u003e\n\u003cp\u003eAn extremely efficient system on paper can lose some of its advantage if:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe indoor units are poorly positioned;\u003c\/li\u003e\n\u003cli\u003ethe refrigerant lines are improperly installed;\u003c\/li\u003e\n\u003cli\u003ethe system is oversized;\u003c\/li\u003e\n\u003cli\u003ethe filters are neglected;\u003c\/li\u003e\n\u003cli\u003ea unit blows directly toward a staircase rather than toward the occupied area;\u003c\/li\u003e\n\u003cli\u003ethe drains are poorly designed;\u003c\/li\u003e\n\u003cli\u003ethe refrigerant is not managed properly during commissioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA heat pump’s efficiency is therefore the result of two elements: \u003cstrong\u003ethe equipment and the installation\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e38,000 BTU at -8 °C: a particularly interesting figure for Montreal\u003c\/h3\u003e\n\u003cp\u003eThe available data for this configuration indicate a heating capacity of approximately \u003cstrong\u003e38,000 BTU\/h at -8 °C\u003c\/strong\u003e, with a \u003cstrong\u003eCOP of 2.12\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-15 °C\u003c\/strong\u003e, the listed capacity is still approximately \u003cstrong\u003e36,000 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis data is particularly relevant in Quebec, since a heat pump is not evaluated only during the mild temperatures of fall. Its performance at -8 °C and -15 °C provides a much more useful indication of what it can deliver during a significant portion of the heating season.\u003c\/p\u003e\n\u003cp\u003eA system capable of maintaining a large portion of its rated capacity at these temperatures can further reduce reliance on backup heating, provided it has been properly sized for the building.\u003c\/p\u003e\n\u003ch3\u003eAt -30 °C, capacity decreases: this must be taken into account\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE is advertised as continuing to provide heating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, which is also confirmed in the manufacturer’s documentation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt this extreme temperature, the data provided for the configuration indicate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eheating capacity: approximately 22,400 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP: approximately 1.47\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis figure deserves more attention than the simple statement “heating down to -30 °C.”\u003c\/p\u003e\n\u003cp\u003eA 36,000 BTU heat pump therefore does not necessarily produce 36,000 BTU when the outdoor temperature reaches -30 °C.\u003c\/p\u003e\n\u003cp\u003eIf a home loses, for example, 35,000 BTU\/h at this temperature and the heat pump provides approximately 22,400, the difference must be supplied by another heating source.\u003c\/p\u003e\n\u003cp\u003eDepending on the property, this may include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eelectric baseboard heaters;\u003c\/li\u003e\n\u003cli\u003ean existing furnace;\u003c\/li\u003e\n\u003cli\u003econvector heaters;\u003c\/li\u003e\n\u003cli\u003eanother backup system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAt AirGreen, we prefer to explain this reality when selecting the system rather than creating the impression that a minimum operating temperature automatically represents full rated capacity.\u003c\/p\u003e\n\u003ch3\u003eCOP of 2.12 at -8°C: what this means in simple terms\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003eCOP of 2.12\u003c\/strong\u003e means that, at the corresponding temperature condition, the heat pump can provide approximately 2.12 units of heat for each unit of electricity consumed by the heat-pumping process.\u003c\/p\u003e\n\u003cp\u003eAt -30°C, the indicated COP drops to \u003cstrong\u003e1,47\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis is normal: the lower the outdoor temperature drops, the more difficult it becomes to extract heat from outside and transfer it indoors.\u003c\/p\u003e\n\u003cp\u003eActual performance may also vary depending on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003edefrost cycles;\u003c\/li\u003e\n\u003cli\u003ethe requested indoor temperature;\u003c\/li\u003e\n\u003cli\u003ethe number of active zones;\u003c\/li\u003e\n\u003cli\u003ethe length of the lines;\u003c\/li\u003e\n\u003cli\u003ecompressor modulation;\u003c\/li\u003e\n\u003cli\u003eoutdoor conditions;\u003c\/li\u003e\n\u003cli\u003ethe condition of the filters and coils.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eA true cold-climate heat pump\u003c\/h3\u003e\n\u003cp\u003eThe configuration is listed as \u003cstrong\u003eCOLD CLIMATE: Yes\u003c\/strong\u003e, and Senville’s documentation also presents the system as optimized for cold climates, with heating maintained down to \u003cstrong\u003e-22°F, or -30°C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis clearly distinguishes it from a model that can operate only down to -15°C or -20°C.\u003c\/p\u003e\n\u003cp\u003eFor a property in \u003cstrong\u003eLongueuil, Terrebonne, Laval, Boucherville, Repentigny, or Montréal\u003c\/strong\u003e, this operating range corresponds much better to the use we expect from a heat pump used as the primary heating source for a large part of the winter.\u003c\/p\u003e\n\u003ch3\u003eAn ENERGY STAR certification and a specific AHRI number\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENA-36HF-MOA\u003c\/strong\u003e is listed as \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e, with reference \u003cstrong\u003e3630064\u003c\/strong\u003e and AHRI number \u003cstrong\u003e215735317\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe brochure also explicitly mentions the system’s ENERGY STAR certification and AHRI certification. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AHRI number is important because it identifies a certified combination rather than merely a product family.\u003c\/p\u003e\n\u003cp\u003eWhen we prepare an installation involving financial assistance, we must ensure that the installed equipment matches the eligible pairing.\u003c\/p\u003e\n\u003ch3\u003eUp to $4,560 in indicated provincial grants\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen sheet indicates a \u003cstrong\u003e$4,560 provincial grant\u003c\/strong\u003e for this configuration.\u003c\/p\u003e\n\u003cp\u003eThis amount can make comparison with less efficient systems particularly worthwhile.\u003c\/p\u003e\n\u003cp\u003eHowever, a grant amount should never be considered automatically guaranteed. Programs may impose conditions related in particular to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe building;\u003c\/li\u003e\n\u003cli\u003ethe system type;\u003c\/li\u003e\n\u003cli\u003ethe AHRI number;\u003c\/li\u003e\n\u003cli\u003ethe certification;\u003c\/li\u003e\n\u003cli\u003ethe installation date;\u003c\/li\u003e\n\u003cli\u003ethe contractor;\u003c\/li\u003e\n\u003cli\u003ethe required documentation;\u003c\/li\u003e\n\u003cli\u003ethe criteria in effect at the time of the application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe therefore always recommend confirming actual eligibility before calculating a project’s net cost.\u003c\/p\u003e\n\u003ch3\u003eAn outdoor unit weighing more than 200 lb: the location must be properly prepared\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit measures \u003cstrong\u003e38.58 in × 16.34 in × 38.39 in\u003c\/strong\u003e and weighs approximately \u003cstrong\u003e211.86 lb\u003c\/strong\u003e. The manufacturer also specifies a maximum outdoor airflow of \u003cstrong\u003e3,037.2 CFM\u003c\/strong\u003e and a sound level of \u003cstrong\u003e65 dB\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is therefore not a small outdoor unit.\u003c\/p\u003e\n\u003cp\u003eFor an installation in \u003cstrong\u003eMontreal or Longueuil\u003c\/strong\u003e, where side passages can be narrow, we must measure the location before delivery.\u003c\/p\u003e\n\u003cp\u003eOn the \u003cstrong\u003eNorth Shore or South Shore\u003c\/strong\u003e, space is often more generous, but other constraints arise: snow accumulation, terrain slope, terrace, bedroom windows, or neighboring properties.\u003c\/p\u003e\n\u003cp\u003eA proper outdoor installation must include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea stable base;\u003c\/li\u003e\n\u003cli\u003esufficient height above the snow;\u003c\/li\u003e\n\u003cli\u003eadequate clearance around the heat exchanger;\u003c\/li\u003e\n\u003cli\u003eaccess for maintenance;\u003c\/li\u003e\n\u003cli\u003ea logical route for both piping sets;\u003c\/li\u003e\n\u003cli\u003eproper drain management;\u003c\/li\u003e\n\u003cli\u003ea location that avoids unnecessarily directing noise toward a bedroom or neighboring terrace.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e65 dB outdoors: how to interpret the sound level\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer specifies \u003cstrong\u003e65 dB\u003c\/strong\u003e for the outdoor unit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis value must be considered when choosing the location.\u003c\/p\u003e\n\u003cp\u003eA unit installed against a bedroom wall, beneath a window, or in a narrow passage between two buildings may be perceived differently from a unit placed in an open area.\u003c\/p\u003e\n\u003cp\u003eReflective surfaces can also affect how sound is perceived.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, choosing the outdoor location is therefore part of the design, not just a matter of aesthetics.\u003c\/p\u003e\n\u003ch3\u003eMCA 37 A and maximum protection of 40 A\u003c\/h3\u003e\n\u003cp\u003eThe technical data sheet states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003epower supply: 208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003evoltage range: \u003cstrong\u003e187 to 253 V\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 37 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003emaximum protection: 40 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis information must be verified before installation.\u003c\/p\u003e\n\u003cp\u003eIn an older Montreal home equipped with a 100 A panel, for example, we do not assume that a new heat pump circuit can simply be added without analysis.\u003c\/p\u003e\n\u003cp\u003eThe available capacity at the electrical panel, existing loads, and the project’s electrical requirements must be verified.\u003c\/p\u003e\n\u003ch3\u003eR-454B: another generation of refrigerant\u003c\/h3\u003e\n\u003cp\u003eThe system uses \u003cstrong\u003eR-454B\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe documentation indicates a charge of \u003cstrong\u003e134.04 oz\u003c\/strong\u003e and specifies that the unit is \u003cstrong\u003eprecharged for up to 125 ft of refrigerant line\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis substantial precharge is particularly relevant for a multi-zone heat pump, since two indoor units may require separate piping runs.\u003c\/p\u003e\n\u003cp\u003eHowever, “precharged for 125 ft” should not be interpreted as authorization to install any length or configuration without respecting the manufacturer’s specified limits.\u003c\/p\u003e\n\u003cp\u003eEach branch must be properly designed, with the appropriate diameters and a compliant installation.\u003c\/p\u003e\n\u003ch3\u003eWhy piping matters even more on a two-zone system\u003c\/h3\u003e\n\u003cp\u003eThe configuration specifies \u003cstrong\u003e1\/4 in – 1\/2 in\u003c\/strong\u003e piping.\u003c\/p\u003e\n\u003cp\u003eOn a two-zone system, we must manage two separate refrigerant lines from the outdoor unit.\u003c\/p\u003e\n\u003cp\u003eIn a duplex, a two-story house, or a property with one indoor unit at the front and the other at the back, the lengths can become substantial.\u003c\/p\u003e\n\u003cp\u003eA clean installation notably requires:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ea well-planned route before drilling;\u003c\/li\u003e\n\u003cli\u003ean appropriate slope for gravity drains;\u003c\/li\u003e\n\u003cli\u003emechanical protection for the lines;\u003c\/li\u003e\n\u003cli\u003eproperly executed refrigerant connections;\u003c\/li\u003e\n\u003cli\u003ea proper vacuum before commissioning;\u003c\/li\u003e\n\u003cli\u003ea leak-tightness check;\u003c\/li\u003e\n\u003cli\u003ean exterior finish that remains accessible for servicing.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eAn error on a single branch can affect the comfort of one zone and complicate future troubleshooting.\u003c\/p\u003e\n\u003ch3\u003eTwo zones do not mean simultaneous heating and cooling\u003c\/h3\u003e\n\u003cp\u003eThis is a common question with multi-zone heat pumps.\u003c\/p\u003e\n\u003cp\u003eIndoor units connected to the same outdoor unit generally need to operate in a compatible mode. In other words, you should not expect to heat one zone significantly while the other is simultaneously providing cooling.\u003c\/p\u003e\n\u003cp\u003eIn a typical residence, this is generally not a problem.\u003c\/p\u003e\n\u003cp\u003eHowever, in a property with very different orientations, a large sun-exposed sunroom, and a cold north-facing room, this point can become important during the shoulder seasons.\u003c\/p\u003e\n\u003cp\u003eWe take this into account before recommending a multi-zone configuration.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi included and Alexa integration\u003c\/h3\u003e\n\u003cp\u003eThe SENA-36HF-MOA includes smart control features.\u003c\/p\u003e\n\u003cp\u003eThe documentation indicates \u003cstrong\u003eapp control\u003c\/strong\u003e, \u003cstrong\u003eAlexa\u003c\/strong\u003e compatibility, and the ability to schedule the system and manage comfort remotely. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe manufacturer also lists an \u003cstrong\u003eAlexa USB kit\u003c\/strong\u003e, wireless remote controls, and communication wiring among the included components. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a two-zone installation, this feature is more useful than in multiple single-zone systems, because the homeowner can manage the two spaces separately without having to go to each unit.\u003c\/p\u003e\n\u003ch3\u003eAutomatic vertical and horizontal louvers\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen configuration indicates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003evertical louvers: automatic\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ehorizontal louvers: automatic\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis allows the airflow to be directed more effectively in a large room.\u003c\/p\u003e\n\u003cp\u003eHowever, the unit’s location remains crucial. Even with motorized oscillation, a unit installed too close to a wall, directly in front of a staircase, or in a poorly chosen corner will not distribute air as effectively as a unit positioned after analyzing the room.\u003c\/p\u003e\n\u003ch3\u003eIntegrated diagnostics and leak detection\u003c\/h3\u003e\n\u003cp\u003eSenville documentation mentions an integrated \u003cstrong\u003ediagnostic and leak-detection system\u003c\/strong\u003e, with monitoring capable of alerting the user to a problem, particularly one related to refrigerant. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese functions can speed up the identification of certain anomalies, but they do not replace a technical diagnosis.\u003c\/p\u003e\n\u003cp\u003eAn error code often helps identify a group of problems; it does not necessarily indicate which part needs to be replaced.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we use diagnostic information as a starting point, then verify the system’s actual conditions.\u003c\/p\u003e\n\u003ch3\u003e“Up to 1,800 sq. ft.”: a marketing indication, not a sizing method\u003c\/h3\u003e\n\u003cp\u003eSenville documentation indicates that the system can cover \u003cstrong\u003eup to 1,800 sq. ft.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe recommend treating this figure with caution.\u003c\/p\u003e\n\u003cp\u003eA recently built 1,800 sq. ft. home on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e and a century-old 1,800 sq. ft. home in Montreal can have completely different heat losses.\u003c\/p\u003e\n\u003cp\u003eEven the distribution of the 1,800 sq. ft. changes the result.\u003c\/p\u003e\n\u003cp\u003eAn open bungalow does not perform the same way as a three-story house with several enclosed bedrooms.\u003c\/p\u003e\n\u003cp\u003eWe therefore use area as one piece of data among several others, never as the sole sizing criterion.\u003c\/p\u003e\n\u003ch2\u003eAirGreen Installation: how to turn a good specification sheet into true comfort in two zones\u003c\/h2\u003e\n\u003ch3\u003eThe choice of the two indoor units is just as important as that of the outdoor compressor\u003c\/h3\u003e\n\u003cp\u003eThe system documentation indicates that it can support \u003cstrong\u003e2 to 5 zones\u003c\/strong\u003e, depending on the configuration. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn the application discussed here, we are referring to a \u003cstrong\u003etwo-zone configuration\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer offers, among other options, an \u003cstrong\u003e18,000 + 18,000 BTU\u003c\/strong\u003e combination, but the right combination must be adapted to the building. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTwo zones of similar area do not always require the same indoor unit.\u003c\/p\u003e\n\u003cp\u003eA large open room with a cathedral ceiling may have a higher load than a floor of comparable area with several well-insulated bedrooms.\u003c\/p\u003e\n\u003cp\u003eThe distribution must therefore be decided before ordering.\u003c\/p\u003e\n\u003ch3\u003eThe mistake we want to avoid: choosing the heads based solely on square footage\u003c\/h3\u003e\n\u003cp\u003eSuppose that two zones are each 800 sq. ft.\u003c\/p\u003e\n\u003cp\u003eIt would be tempting to conclude that they require the same capacity.\u003c\/p\u003e\n\u003cp\u003eBut the first may have:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003elarge patio doors;\u003c\/li\u003e\n\u003cli\u003ea 12-foot ceiling;\u003c\/li\u003e\n\u003cli\u003ea southwest-facing orientation;\u003c\/li\u003e\n\u003cli\u003ean open kitchen;\u003c\/li\u003e\n\u003cli\u003emore air infiltration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe second may include rooms with small windows and standard-height ceilings.\u003c\/p\u003e\n\u003cp\u003eThe number of square feet is the same, but the load is not.\u003c\/p\u003e\n\u003cp\u003eThat is why we assess the building’s actual conditions before choosing the distribution of the indoor units.\u003c\/p\u003e\n\u003ch3\u003eThe drains can be more complicated than the refrigerant lines\u003c\/h3\u003e\n\u003cp\u003eOn a wall-mounted heat pump, each indoor unit produces condensation in cooling mode.\u003c\/p\u003e\n\u003cp\u003eWith two zones, we therefore have two drains to manage.\u003c\/p\u003e\n\u003cp\u003eWhen a natural slope toward the outside is available, drainage remains relatively simple. When the unit must be installed on an interior wall or in a configuration where gravity is insufficient, a condensate pump may be required.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we try to account for this aspect during the estimate because poor drainage can lead to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewater leaks;\u003c\/li\u003e\n\u003cli\u003epump noise;\u003c\/li\u003e\n\u003cli\u003emarks on the wall;\u003c\/li\u003e\n\u003cli\u003eadditional maintenance;\u003c\/li\u003e\n\u003cli\u003esystem shutdowns if a safety device is triggered.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe warranty deserves careful verification\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing indicates a \u003cstrong\u003e10-10-0 manufacturer’s warranty\u003c\/strong\u003e, with the possibility of an additional warranty.\u003c\/p\u003e\n\u003cp\u003eHowever, the Senville documentation provided specifies \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt also states that \u003cstrong\u003eprofessional installation is required\u003c\/strong\u003e to maintain full warranty coverage and the expected performance. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWhen preparing a quote, we therefore always recommend confirming the exact coverage corresponding to the system combination sold, the registration conditions, and the terms in effect.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer’s warranty and a labor warranty are two different protections.\u003c\/p\u003e\n\u003ch3\u003eSimple maintenance, but two indoor units to monitor\u003c\/h3\u003e\n\u003cp\u003eOne of the advantages of a ductless heat pump is the absence of a central network to maintain.\u003c\/p\u003e\n\u003cp\u003eHowever, this does not mean “zero maintenance.”\u003c\/p\u003e\n\u003cp\u003eEach indoor unit has its own filters and heat exchanger.\u003c\/p\u003e\n\u003cp\u003eTo maintain good performance, we particularly recommend:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eto clean the filters regularly;\u003c\/li\u003e\n\u003cli\u003eto monitor dust buildup in the blower wheels;\u003c\/li\u003e\n\u003cli\u003eto keep the air inlets and outlets clear;\u003c\/li\u003e\n\u003cli\u003eto check the drains;\u003c\/li\u003e\n\u003cli\u003eto avoid blocking the outdoor unit with objects or vegetation;\u003c\/li\u003e\n\u003cli\u003eto keep the outdoor unit clear of snow;\u003c\/li\u003e\n\u003cli\u003eto have the indoor units thoroughly cleaned when dirt buildup warrants it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a two-zone system, a very dirty unit may operate less efficiently than the other and give the impression that the system is distributing its capacity poorly.\u003c\/p\u003e\n\u003ch3\u003eWhen this SENVILLE 36,000 BTU 2-zone system is an excellent candidate\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA-36HF-MOA R454B\u003c\/strong\u003e is particularly worth considering when a homeowner wants to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eheat and cool two large zones with a single outdoor unit;\u003c\/li\u003e\n\u003cli\u003eget a heat pump that operates down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003etake advantage of a \u003cstrong\u003e23 SEER2\u003c\/strong\u003e rating;\u003c\/li\u003e\n\u003cli\u003emaintain strong heating capacity at -8 °C and -15 °C;\u003c\/li\u003e\n\u003cli\u003ebenefit from an \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e system;\u003c\/li\u003e\n\u003cli\u003eget the included Wi-Fi control;\u003c\/li\u003e\n\u003cli\u003ereduce the number of outdoor units;\u003c\/li\u003e\n\u003cli\u003etake advantage, if eligible, of financial assistance of up to \u003cstrong\u003e4 560 $\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is particularly well suited to projects where the two zones can operate in a complementary manner and where the placement of the indoor units allows for good air distribution.\u003c\/p\u003e\n\u003ch3\u003eWhen we would consider another configuration\u003c\/h3\u003e\n\u003cp\u003eWe might recommend a different approach if:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe two zones have extremely different needs;\u003c\/li\u003e\n\u003cli\u003ethey frequently need to operate in opposite modes;\u003c\/li\u003e\n\u003cli\u003ea single indoor unit cannot properly distribute air throughout a divided zone;\u003c\/li\u003e\n\u003cli\u003ethe actual total load exceeds what the system can provide during extreme cold;\u003c\/li\u003e\n\u003cli\u003ethe distance or line-set configuration makes the installation excessively complicated;\u003c\/li\u003e\n\u003cli\u003etwo independent outdoor units would provide greater flexibility for the project.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe best system is therefore not necessarily the one with the highest BTU rating. It is the one whose design matches the building.\u003c\/p\u003e\n\u003ch3\u003eWhy have AirGreen install this 2-zone heat pump\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Climatisation \u0026amp; Chauffage\u003c\/strong\u003e, we do not reduce a multi-zone installation to choosing a location for two wall-mounted units.\u003c\/p\u003e\n\u003cp\u003eWe analyze the entire project:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ecapacity of each zone;\u003c\/li\u003e\n\u003cli\u003esolar exposure;\u003c\/li\u003e\n\u003cli\u003eair circulation;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003eindoor unit placement;\u003c\/li\u003e\n\u003cli\u003eline-set length;\u003c\/li\u003e\n\u003cli\u003edrainage;\u003c\/li\u003e\n\u003cli\u003eelectrical supply;\u003c\/li\u003e\n\u003cli\u003eoutdoor location;\u003c\/li\u003e\n\u003cli\u003esnow management;\u003c\/li\u003e\n\u003cli\u003enoise level;\u003c\/li\u003e\n\u003cli\u003efuture accessibility for servicing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis approach is especially important with a \u003cstrong\u003e36,000 BTU 2-zone heat pump\u003c\/strong\u003e, since both spaces depend on the same outdoor unit.\u003c\/p\u003e\n\u003cp\u003eA well-designed configuration lets you take advantage of inverter modulation, heating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, \u003cstrong\u003e23 SEER2\u003c\/strong\u003e, and individual zone control. Conversely, poor placement of the indoor units can reduce comfort despite very appealing technical specifications.\u003c\/p\u003e\n\u003ch3\u003eGet an AirGreen quote for the SENVILLE 2-Zone R454B 36,000 BTU\u003c\/h3\u003e\n\u003cp\u003eAre you considering a \u003cstrong\u003eSENVILLE 2-zone 36,000 BTU heat pump\u003c\/strong\u003e for a house, condo, duplex, or business?\u003c\/p\u003e\n\u003cp\u003eContact \u003cstrong\u003eAirGreen\u003c\/strong\u003e for an assessment of your project. We can verify the required capacity for each zone, the location of the units, the line-set routing, drainage, electrical supply, and eligibility for applicable financial assistance programs.\u003c\/p\u003e\n\u003cp\u003eWe install and service \u003cstrong\u003emulti-zone heat pumps in Montreal, Laval, Longueuil, the North Shore, the South Shore, and Montérégie\u003c\/strong\u003e, with particular attention to sizing and commissioning quality.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"18  + 18","offer_id":56200893956388,"sku":"SENA-36HF-MOA","price":0.0,"currency_code":"CAD","in_stock":true},{"title":"12 + 24","offer_id":56200893989156,"sku":"SENA-36HF-MOA","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_2_ZONES_SENVILLE_R454B_36000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789057723"},{"product_id":"thermopompe-2-zones-senville-r454b-48000-btu","title":"SENVILLE R454B 2-Zone Heat Pump | 48000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eTwo 24,000 BTU zones, one outdoor unit: a configuration designed for large spaces that require true independent control\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eA \u003cstrong\u003e48,000 BTU 2-zone heat pump\u003c\/strong\u003e meets a very different need from a single-zone wall-mounted heat pump. Here, a single outdoor unit powers two separate indoor units, making it possible to condition two major zones of a building while retaining a single outdoor refrigeration system.\u003c\/p\u003e\n\u003cp\u003eThe SENVILLE configuration associated with this listing uses the \u003cstrong\u003eSENA-48HF-MOA\u003c\/strong\u003e outdoor unit and, in the 2-zone version documented by Senville, two indoor units of \u003cstrong\u003e24,000 BTU each\u003c\/strong\u003e. The brochure specifically identifies the product as the \u003cstrong\u003eSENA-48HF\/D\u003c\/strong\u003e, with the commercial combination \u003cstrong\u003eSENA-48HF-D2424\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor us at \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, this type of system becomes particularly relevant when a homeowner in \u003cstrong\u003eMontreal, Laval, Longueuil, on the South Shore or the North Shore\u003c\/strong\u003e wants to cool and heat two large zones without installing two separate outdoor units.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen combination is associated with the following specifications:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENA-48HF-MOA\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCommercial capacity: 48,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eConfiguration shown: 2 zones\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTwo 24,000 BTU indoor units\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735320\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR®: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR® Cold Climate: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR ID: 3630067\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 23\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 12\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-4: 11\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWiFi: included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMinimum heating temperature: -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 37 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 40 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound level: 65 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSenville documentation confirms the \u003cstrong\u003eSEER2 of 23\u003c\/strong\u003e, the use of R-454B, 208\/230 V power supply, and a multi-zone design capable of managing \u003cstrong\u003e2 to 6 zones\u003c\/strong\u003e depending on the configuration. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eOne essential clarification: the outdoor unit can support several configurations, but this article focuses on two zones.\u003c\/h3\u003e\n\u003cp\u003eThe brochure states that the \u003cstrong\u003eSENA-48HF-MOA\u003c\/strong\u003e can support \u003cstrong\u003e2 to 6 zones\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis does not mean that the configuration presented here includes six indoor units. The version documented on the first page does include \u003cstrong\u003etwo 24,000 BTU units each\u003c\/strong\u003e, for a 24,000 + 24,000 BTU combination. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a homeowner, this distinction is important.\u003c\/p\u003e\n\u003cp\u003eA multi-zone outdoor unit is a platform capable of supporting different combinations. However, the final performance depends on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eof the number of installed heads;\u003c\/li\u003e\n\u003cli\u003eof their individual capacity;\u003c\/li\u003e\n\u003cli\u003eof the line-set length;\u003c\/li\u003e\n\u003cli\u003eof the zones’ simultaneous needs;\u003c\/li\u003e\n\u003cli\u003eof the certified combination.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is therefore essential to always compare the \u003cstrong\u003ecomplete combination\u003c\/strong\u003e, not just the outdoor unit number.\u003c\/p\u003e\n\u003ch3\u003eTwo 24,000 BTU heads: for what type of building is this configuration suitable?\u003c\/h3\u003e\n\u003cp\u003eTwo \u003cstrong\u003e24,000 BTU\u003c\/strong\u003e wall-mounted units represent substantial capacity.\u003c\/p\u003e\n\u003cp\u003eThis combination may be interesting, for example, for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003etwo relatively open large floors;\u003c\/li\u003e\n\u003cli\u003ea large ground floor and basement;\u003c\/li\u003e\n\u003cli\u003etwo large commercial zones;\u003c\/li\u003e\n\u003cli\u003etwo independent residences or sections when the technical configuration allows it;\u003c\/li\u003e\n\u003cli\u003ea large residential space divided into two thermal zones.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSenville generally recommends this 48,000 BTU version for approximately \u003cstrong\u003e2,000 to 2,500 sq. ft.\u003c\/strong\u003e, while presenting it as a solution for multiple zones or large spaces. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe consider this area only a general indication.\u003c\/p\u003e\n\u003cp\u003eA 2,200 sq. ft. property in \u003cstrong\u003eBoucherville\u003c\/strong\u003e with recent insulation and an open layout may have a completely different load from an older duplex in \u003cstrong\u003eMontreal\u003c\/strong\u003e of a similar size.\u003c\/p\u003e\n\u003cp\u003eFor a \u003cstrong\u003emulti-zone HVAC installation\u003c\/strong\u003e, we must consider, among other factors:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003ewindows;\u003c\/li\u003e\n\u003cli\u003esolar exposure;\u003c\/li\u003e\n\u003cli\u003eceilings;\u003c\/li\u003e\n\u003cli\u003eexterior walls;\u003c\/li\u003e\n\u003cli\u003enatural air circulation;\u003c\/li\u003e\n\u003cli\u003ethe actual separation between the zones;\u003c\/li\u003e\n\u003cli\u003ewinter heating needs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eA common mistake is to simply add 24,000 + 24,000 and assume that each head will always have 24,000 BTU\u003c\/h3\u003e\n\u003cp\u003eA multi-zone system operates differently from two independent heat pumps.\u003c\/p\u003e\n\u003cp\u003eThe two indoor units share the same outdoor unit and compressor. When both zones require substantial capacity simultaneously, the outdoor unit must distribute its output.\u003c\/p\u003e\n\u003cp\u003eThe brochure lists a nominal cooling capacity of \u003cstrong\u003e47,000 BTU\/h\u003c\/strong\u003e for the system, with an operating range of \u003cstrong\u003e12,000 to 57,000 BTU\/h\u003c\/strong\u003e. In heating mode, the nominal capacity is \u003cstrong\u003e49,000 BTU\/h\u003c\/strong\u003e, with modulation from \u003cstrong\u003e13,000 to 57,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThat is precisely why we do not present a multi-zone system as two completely independent single units from a refrigeration standpoint.\u003c\/p\u003e\n\u003cp\u003eThe temperatures can be adjusted separately in the two spaces, but the units share the available outdoor capacity.\u003c\/p\u003e\n\u003ch3\u003eSEER2 23: outstanding efficiency for a system of this capacity\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSEER2 of 23\u003c\/strong\u003e is particularly noteworthy for a 48,000 BTU multi-zone system.\u003c\/p\u003e\n\u003cp\u003eThe brochure also confirms:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 12\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-4: 11\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-5: 9\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal COP: 3.7\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a property that frequently uses both zones during the summer, seasonal efficiency becomes important because a high-capacity system can accumulate many operating hours.\u003c\/p\u003e\n\u003cp\u003eThe inverter also allows modulation. It is therefore not a unit doomed to constantly produce 48,000 BTU.\u003c\/p\u003e\n\u003cp\u003eThe cooling range, which can go down to \u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e, allows the system to adjust its output when only one zone requires little energy or when overall needs decrease.\u003c\/p\u003e\n\u003ch3\u003eWhy modulation is even more important in a 2-zone heat pump\u003c\/h3\u003e\n\u003cp\u003eLet’s consider a simple configuration.\u003c\/p\u003e\n\u003cp\u003eThe first head serves a large living room-kitchen where several people are present. The second serves a floor that has become almost unused for a few hours.\u003c\/p\u003e\n\u003cp\u003eThe needs are not identical.\u003c\/p\u003e\n\u003cp\u003eThe inverter compressor adjusts its output to meet the overall load rather than operating solely in on-off mode.\u003c\/p\u003e\n\u003cp\u003eIn a properly sized installation, this can improve:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003etemperature stability;\u003c\/li\u003e\n\u003cli\u003epartial-load consumption;\u003c\/li\u003e\n\u003cli\u003ethe comfort of both zones;\u003c\/li\u003e\n\u003cli\u003ethe acoustic performance of the indoor units;\u003c\/li\u003e\n\u003cli\u003ethe efficiency during periods when a single zone demands a lot of energy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHeating down to -30 °C: low-temperature capacities must be considered separately\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications provide three particularly useful operating points:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e45,000 BTU\/h at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e47,000 BTU\/h at -15 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum 24,600 BTU\/h at -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe stated COP is approximately \u003cstrong\u003e2.6 at -8 °C\u003c\/strong\u003e and \u003cstrong\u003e1.27 at the maximum operating point at -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSenville’s documentation confirms a minimum heating temperature of \u003cstrong\u003e-22 °F, or -30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical conclusion is important: \u003cstrong\u003eoperating down to -30 °C does not mean maintaining 48,000 BTU of heating capacity down to -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt this extreme temperature, the AirGreen specifications indicate a maximum capacity of approximately \u003cstrong\u003e24,600 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a large home in \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e, this difference must be incorporated into the heating calculation.\u003c\/p\u003e\n\u003ch3\u003eAt -15 °C, the capacity remains very high\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e47,000 BTU at -15 °C\u003c\/strong\u003e listed on the AirGreen specifications sheet is particularly interesting.\u003c\/p\u003e\n\u003cp\u003eAt this temperature, the available capacity remains close to the system’s overall rated capacity.\u003c\/p\u003e\n\u003cp\u003eThis is precisely the type of data we examine at AirGreen when a customer wants to use their heat pump as the primary heating source for a large portion of the winter.\u003c\/p\u003e\n\u003cp\u003eThe relevant question is not merely: “Down to what temperature does it operate?”\u003c\/p\u003e\n\u003cp\u003eWe look instead at:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many BTUs does the system produce at the temperature when the house actually needs them?\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eCold Climate and ENERGY STAR®\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCold Climate: yes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR®: yes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand the brochure also presents the series as ENERGY STAR certified and designed to provide heating down to -30 °C. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a Quebec homeowner, this certification may be relevant both to the technical choice and to certain financial assistance programs.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen listing associates this combination with reference \u003cstrong\u003eAHRI 215735320\u003c\/strong\u003e and identifier \u003cstrong\u003eENERGY STAR 3630067\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eAdvertised provincial rebate: $5,400\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing currently indicates a \u003cstrong\u003e$5,400 provincial rebate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a multi-zone project, an amount of this magnitude can obviously significantly change the installation’s net cost.\u003c\/p\u003e\n\u003cp\u003eEligibility must nevertheless be confirmed when the quote is prepared, as programs, amounts, and criteria may be revised.\u003c\/p\u003e\n\u003cp\u003eWe specifically verify:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe exact models;\u003c\/li\u003e\n\u003cli\u003eAHRI;\u003c\/li\u003e\n\u003cli\u003eCold Climate certification;\u003c\/li\u003e\n\u003cli\u003ethe type of building;\u003c\/li\u003e\n\u003cli\u003ethe rules in effect at the time of the project.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA system commercially called “Senville 48,000 BTU” is not sufficient to validate a rebate. \u003cstrong\u003eThe specific certified combination is decisive.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eTwo-zone installation: what we check before recommending the SENVILLE SENA-48HF-MOA\u003c\/h2\u003e\n\u003ch3\u003eA substantial outdoor unit weighing nearly 250 lb\u003c\/h3\u003e\n\u003cp\u003eThe brochure lists the following dimensions for the outdoor unit:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e37.48 in × 16.34 in × 52.48 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eweighing approximately \u003cstrong\u003e246.47 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe are therefore not talking about a small conventional wall-mounted unit.\u003c\/p\u003e\n\u003cp\u003eIts installation requires:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea suitable support;\u003c\/li\u003e\n\u003cli\u003ean accessible location;\u003c\/li\u003e\n\u003cli\u003eadequate clearances;\u003c\/li\u003e\n\u003cli\u003especial attention to snow accumulation;\u003c\/li\u003e\n\u003cli\u003ea well-planned refrigerant line route.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAt several \u003cstrong\u003eMontreal\u003c\/strong\u003e properties, outdoor space may be limited. On the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e or \u003cstrong\u003eNorth Shore\u003c\/strong\u003e, we may sometimes have more flexibility, but the unit must always remain accessible for servicing.\u003c\/p\u003e\n\u003ch3\u003e4,503 CFM outdoors: do not enclose the condenser\u003c\/h3\u003e\n\u003cp\u003eThe documentation indicates a maximum outdoor airflow of \u003cstrong\u003e4,502.8 CFM\u003c\/strong\u003e and a sound level of \u003cstrong\u003e65 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA unit capable of moving more than 4,500 cubic feet of air per minute should not be enclosed behind overly tight decorative panels or placed in a corner where discharged air immediately returns toward the coil.\u003c\/p\u003e\n\u003cp\u003ePoor airflow around the outdoor unit can affect its heat exchange and operation.\u003c\/p\u003e\n\u003ch3\u003eAn outdoor sound level of 65 dB(A) warrants careful consideration of the location\u003c\/h3\u003e\n\u003cp\u003eThe stated value is \u003cstrong\u003e65 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a large multi-zone unit, the following must therefore be taken into account:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003efrom the primary bedroom;\u003c\/li\u003e\n\u003cli\u003efrom the windows;\u003c\/li\u003e\n\u003cli\u003efrom the terrace;\u003c\/li\u003e\n\u003cli\u003eneighbors;\u003c\/li\u003e\n\u003cli\u003ewalls that may reflect sound;\u003c\/li\u003e\n\u003cli\u003emunicipal regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA very short piping run is not necessarily the best installation if it positions the condenser directly beneath a bedroom window.\u003c\/p\u003e\n\u003ch3\u003eR-454B: 151.68 oz charge and impressive 150-foot precharge\u003c\/h3\u003e\n\u003cp\u003eSenville documentation indicates a charge of \u003cstrong\u003e151.68 oz of R-454B\u003c\/strong\u003e as well as a \u003cstrong\u003especified precharge for up to 150 feet\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville also specifies that the system is precharged for a total of up to \u003cstrong\u003e150 feet of piping\u003c\/strong\u003e and that professional installation is required. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis capacity is particularly interesting in a multi-zone project because the two indoor units may be far from the outdoor unit.\u003c\/p\u003e\n\u003cp\u003eHowever, this does not mean that we should unnecessarily use all of that length.\u003c\/p\u003e\n\u003cp\u003eThe more complex the route, the more we need to consider:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epressure losses;\u003c\/li\u003e\n\u003cli\u003ethe total amount of copper;\u003c\/li\u003e\n\u003cli\u003eheight differences;\u003c\/li\u003e\n\u003cli\u003epassages through the walls;\u003c\/li\u003e\n\u003cli\u003efuture access;\u003c\/li\u003e\n\u003cli\u003ethe aesthetics of the line-hide covers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e3\/8 in – 5\/8 in piping: pay attention to the exact branch configuration\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate a main pipe size of \u003cstrong\u003e3\/8 in – 5\/8 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eHowever, on a multi-zone system, we must always consult the exact combination diagram to determine the applicable diameters for each indoor unit and any distribution fittings.\u003c\/p\u003e\n\u003cp\u003eWe avoid treating the diameter shown on the outdoor unit’s specifications as complete installation instructions for both branches.\u003c\/p\u003e\n\u003ch3\u003eInstalling two indoor units: drainage can become more complex than the refrigerant piping\u003c\/h3\u003e\n\u003cp\u003eA 2-zone heat pump also means \u003cstrong\u003etwo indoor units producing condensate\u003c\/strong\u003e in cooling mode.\u003c\/p\u003e\n\u003cp\u003eEach one requires adequate drainage.\u003c\/p\u003e\n\u003cp\u003eIn one project, we may sometimes route both drains by gravity. In other configurations, one indoor unit is located where the natural slope is insufficient, and an additional solution must be planned.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore evaluate for each zone:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe available wall;\u003c\/li\u003e\n\u003cli\u003ethe refrigerant line route;\u003c\/li\u003e\n\u003cli\u003ethe drain;\u003c\/li\u003e\n\u003cli\u003eelectrical access;\u003c\/li\u003e\n\u003cli\u003ethe direction of airflow;\u003c\/li\u003e\n\u003cli\u003efuture maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAutomatic vertical and horizontal louvers\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate \u003cstrong\u003eautomatic vertical and horizontal louvers\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOn a 24,000 BTU indoor unit, this feature is useful for distributing air throughout a large area.\u003c\/p\u003e\n\u003cp\u003eBut it cannot correct poor placement.\u003c\/p\u003e\n\u003cp\u003eIdeally, we aim to orient each unit toward the depth of its space, without blowing directly onto a table, sofa, or bed.\u003c\/p\u003e\n\u003cp\u003eIn a multi-zone system, each indoor unit must be considered a complete installation in its own right.\u003c\/p\u003e\n\u003ch3\u003eWiFi included: particularly relevant for two zones\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWiFi is included\u003c\/strong\u003e according to the AirGreen product sheet, and the brochure confirms smart app-based control. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a 2-zone installation, this feature becomes genuinely practical.\u003c\/p\u003e\n\u003cp\u003eFor example, an owner can keep a main zone at a comfortable temperature while lowering the setpoint in a space used less often.\u003c\/p\u003e\n\u003cp\u003eThe brochure indicates that the package includes, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e2 indoor units of 24,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eone outdoor unit;\u003c\/li\u003e\n\u003cli\u003ethe wireless remote controls;\u003c\/li\u003e\n\u003cli\u003ea USB WiFi kit;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003etwo 16-foot installation kits\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ethe connection harnesses;\u003c\/li\u003e\n\u003cli\u003ethe installation manual. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical requirements: MCA 37 A and MOP 40 A\u003c\/h3\u003e\n\u003cp\u003eThe documentation specifies:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMCA: 37 A\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003emaximum protection: 40 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe power supply is \u003cstrong\u003e208\/230 V single-phase, 60 Hz\u003c\/strong\u003e, with a voltage range of 187 to 253 V. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBefore installation, we must therefore confirm:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe electrical panel;\u003c\/li\u003e\n\u003cli\u003ethe available capacity;\u003c\/li\u003e\n\u003cli\u003ethe circuit breaker;\u003c\/li\u003e\n\u003cli\u003ethe conductor size;\u003c\/li\u003e\n\u003cli\u003ethe outdoor disconnect switch.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a 48,000 BTU heat pump, this verification must be completed before finalizing the project, not on the day of installation.\u003c\/p\u003e\n\u003ch3\u003eA practical example: two large floors with different usage patterns\u003c\/h3\u003e\n\u003cp\u003eLet’s take an example configuration, solely to illustrate how the system works.\u003c\/p\u003e\n\u003cp\u003eA property has a large open-plan ground floor and a finished basement of a similar size.\u003c\/p\u003e\n\u003cp\u003eThe ground floor is occupied all day, while the basement is mainly used in the evening.\u003c\/p\u003e\n\u003cp\u003eWith a single heat pump and one indoor head, distributing air evenly between the two levels would be difficult.\u003c\/p\u003e\n\u003cp\u003eWith two independent indoor units:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eeach floor receives its own air distribution;\u003c\/li\u003e\n\u003cli\u003ethe settings can be adjusted separately;\u003c\/li\u003e\n\u003cli\u003ethe unused zone can operate at a lower intensity;\u003c\/li\u003e\n\u003cli\u003ethe outdoor unit remains single.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is precisely the type of situation in which the \u003cstrong\u003e2-zone\u003c\/strong\u003e approach becomes attractive.\u003c\/p\u003e\n\u003ch3\u003eAnother scenario in which two outdoor units might be preferable\u003c\/h3\u003e\n\u003cp\u003eA multi-zone system is not automatically the best solution.\u003c\/p\u003e\n\u003cp\u003eIf the two spaces are very far apart or the owner wants complete redundancy, two independent heat pumps may sometimes be preferable.\u003c\/p\u003e\n\u003cp\u003eWith two separate units, a failure of one outdoor unit does not disable both zones.\u003c\/p\u003e\n\u003cp\u003eA multi-zone system instead offers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea single outdoor unit;\u003c\/li\u003e\n\u003cli\u003ea simpler outdoor appearance;\u003c\/li\u003e\n\u003cli\u003ea centralized system power supply;\u003c\/li\u003e\n\u003cli\u003emultiple indoor zones.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe choice therefore depends on the building and the owner’s priorities.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a discrepancy that needs to be clarified\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates a manufacturer’s warranty:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10-year compressor – 10-year parts – 0-year labor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith an additional warranty available.\u003c\/p\u003e\n\u003cp\u003eHowever, the attached Senville brochure mentions \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical table also repeats \u003cstrong\u003e10 Years Compressor \/ 5 Years Parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference should be verified before final publication or before the sale. There may be an extension associated with registration or AirGreen’s commercial terms, but the brochure alone does not confirm 10-year parts coverage.\u003c\/p\u003e\n\u003cp\u003eFor us, the exact terms must be specified in the quote.\u003c\/p\u003e\n\u003ch3\u003eSelf-diagnostics and leak detection\u003c\/h3\u003e\n\u003cp\u003eThe documentation mentions \u003cstrong\u003ebuilt-in diagnostics and leak detection\u003c\/strong\u003e functions designed to facilitate the identification of certain problems. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn a multi-zone system, this feature is useful, but it obviously does not replace \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eTwo indoor units also mean:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003etwo filter assemblies;\u003c\/li\u003e\n\u003cli\u003etwo evaporators;\u003c\/li\u003e\n\u003cli\u003etwo drains;\u003c\/li\u003e\n\u003cli\u003etwo zones to inspect.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe owner must therefore plan maintenance suited to the complete configuration.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for a 48,000 BTU SENVILLE 2-zone heat pump\u003c\/h3\u003e\n\u003cp\u003eA multi-zone installation of this capacity must be planned as a complete system, not as “two heads connected to one machine.”\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we specifically check:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe heat load of each zone;\u003c\/li\u003e\n\u003cli\u003ethe proper capacity of each indoor unit;\u003c\/li\u003e\n\u003cli\u003ethe compatibility of the combination with the outdoor unit;\u003c\/li\u003e\n\u003cli\u003ethe routing of each refrigerant line;\u003c\/li\u003e\n\u003cli\u003etotal lengths;\u003c\/li\u003e\n\u003cli\u003eheight differences;\u003c\/li\u003e\n\u003cli\u003edrainage for each unit;\u003c\/li\u003e\n\u003cli\u003ethe 208\/230 V power supply;\u003c\/li\u003e\n\u003cli\u003ethe outdoor location;\u003c\/li\u003e\n\u003cli\u003eclearances and noise;\u003c\/li\u003e\n\u003cli\u003eeligibility for available programs;\u003c\/li\u003e\n\u003cli\u003efuture access for maintenance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWe serve \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e for single-zone and multi-zone heat pump projects.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA-48HF-MOA R454B\u003c\/strong\u003e offers a particularly interesting technical package: \u003cstrong\u003e23 SEER2, Cold Climate operation down to -30 °C, modulation from 12,000 to 57,000 BTU in cooling, up to 57,000 BTU in heating, WiFi, ENERGY STAR, and the ability to manage multiple zones with a single outdoor unit\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the configuration presented here, the main advantage is clear: \u003cstrong\u003etwo large 24,000 BTU zones each, with a single 48,000 BTU outdoor unit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen to get a quote for the SENVILLE R454B 48,000 BTU 2-zone heat pump, check whether the 24,000 + 24,000 BTU combination is suitable for your building, and schedule a complete HVAC installation in Montreal, Laval, Longueuil, the South Shore, or the North Shore.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"24 + 24","offer_id":56200896217380,"sku":"SENA-48HF-MOA","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_2_ZONES_SENVILLE_R454B_48000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789057736"},{"product_id":"thermopompe-3-zones-senville-r454b-18000-btu","title":"SENVILLE R454B 3-Zone Heat Pump | 18000 BTU","description":"\u003ch2\u003eA compact multi-zone platform for cooling and heating several rooms with a single outdoor unit\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE R454B 18,000 BTU 3-Zone Heat Pump\u003c\/strong\u003e addresses a common problem in homes, condos, and small buildings in Greater Montreal: several rooms need independent temperature control, but the owner does not want to multiply outdoor units on the façade, balcony, or side of the building.\u003c\/p\u003e\n\u003cp\u003eWith outdoor unit \u003cstrong\u003eSENA-18HF-MOA\u003c\/strong\u003e, Senville offers a multi-zone platform that can support \u003cstrong\u003etwo to three zones\u003c\/strong\u003e, depending on the configuration selected. The attached technical documentation precisely confirms this “2-3 zone” connection capacity, a single-phase 208\/230 V power supply, and ductless heat pump technology. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, this type of system is particularly relevant for certain projects in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, and the North Shore\u003c\/strong\u003e, where the rooms are sufficiently separated that a single wall-mounted unit cannot distribute air properly. A second-floor bedroom, an enclosed office, and a living area on the ground floor may have very different needs at the same time.\u003c\/p\u003e\n\u003cp\u003eRather than trying to circulate cold or warm air through multiple hallways and doors, a multi-zone configuration places an indoor unit directly in the areas that need it.\u003c\/p\u003e\n\u003cp\u003eThe combination presented by AirGreen uses:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENA-18HF-MOA\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735311\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eClass capacity: 18,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 25.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 15.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region 4: 10.4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eR-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCold Climate: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eheating advertised down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWiFi included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e220 V\u003c\/strong\u003e power supply\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: approximately 18 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 20 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe brochure also confirms an SEER2 of \u003cstrong\u003e25\u003c\/strong\u003e, an EER2 of \u003cstrong\u003e15\u003c\/strong\u003e and an HSPF2-4 of \u003cstrong\u003e10,4\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eOne essential clarification: the brochure illustrates two zones, but the outdoor unit supports up to three zones\u003c\/h3\u003e\n\u003cp\u003eThe attached documentation presents a commercial configuration on the first page, \u003cstrong\u003eDual Zone SENA-18HF\/D\u003c\/strong\u003e, with two 9,000 BTU indoor units. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003ePage 4 is nevertheless more important for understanding the outdoor unit itself: model \u003cstrong\u003eSENA-18HF-MOA\u003c\/strong\u003e is listed as compatible with \u003cstrong\u003e2 to 3 zones\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis means that the brochure shows a particular combination, but the outdoor unit can be used in a three-zone configuration when the selected indoor units are compatible.\u003c\/p\u003e\n\u003cp\u003eFor an AirGreen installation, we therefore always verify the exact combination before ordering:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emodels of the three indoor units;\u003c\/li\u003e\n\u003cli\u003erated capacities of each;\u003c\/li\u003e\n\u003cli\u003ecompatibility with the SENA-18HF-MOA;\u003c\/li\u003e\n\u003cli\u003emanufacturer’s combination limitations;\u003c\/li\u003e\n\u003cli\u003etotal capacity actually available;\u003c\/li\u003e\n\u003cli\u003eAHRI number applicable to the selected configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is particularly important in a multi-zone system, because three indoor units do not mean that each one can produce its maximum rated capacity simultaneously without limitation.\u003c\/p\u003e\n\u003ch3\u003eWhy 18,000 BTUs can serve three zones\u003c\/h3\u003e\n\u003cp\u003eA multi-zone system should be understood as \u003cstrong\u003eshared outdoor capacity\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe brochure lists the following for the SENA-18HF-MOA:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003erated cooling capacity: \u003cstrong\u003e19,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ecooling range: \u003cstrong\u003e5,400 to 28,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003erated heating capacity: \u003cstrong\u003e20,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eheating range: \u003cstrong\u003e5,700 to 27,000 BTU\/h\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis modulation explains why an 18,000-BTU-class outdoor unit can supply several small zones.\u003c\/p\u003e\n\u003cp\u003eLet’s take a residential configuration as an example: three bedrooms or small spaces do not necessarily require their full capacity at the same time. A bedroom exposed to the sun may require substantial cooling in the late afternoon, while another north-facing zone requires very little.\u003c\/p\u003e\n\u003cp\u003eThe inverter compressor then distributes the available capacity according to the system’s demands.\u003c\/p\u003e\n\u003cp\u003eThe right question is therefore not simply “how many BTUs do the indoor heads provide in total?” We must also consider \u003cstrong\u003ehow the zones will actually be used\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhen three zones make more sense than a single large head\u003c\/h3\u003e\n\u003cp\u003eIn our \u003cstrong\u003emulti-zone heat pump projects in Montreal and Greater Montreal\u003c\/strong\u003e, we often encounter buildings where the total area does not seem particularly large, but where the layout makes a single head ineffective.\u003c\/p\u003e\n\u003cp\u003eA typical example is a floor comprising:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003etwo closed bedrooms;\u003c\/li\u003e\n\u003cli\u003ea small office;\u003c\/li\u003e\n\u003cli\u003ea central hallway.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eInstalling a single high-capacity heat pump in the hallway does not guarantee comfort in all three rooms. As soon as the doors are closed, air circulation becomes limited.\u003c\/p\u003e\n\u003cp\u003eIn this type of configuration, three small indoor units connected to a single outdoor unit can provide much more precise control.\u003c\/p\u003e\n\u003ch3\u003eOne important advantage: each zone can have its own setpoint\u003c\/h3\u003e\n\u003cp\u003eThe main benefit of a \u003cstrong\u003e3-zone heat pump\u003c\/strong\u003e is not simply having three air handlers.\u003c\/p\u003e\n\u003cp\u003eIt is the ability to adapt comfort to each room.\u003c\/p\u003e\n\u003cp\u003eA bedroom can be set to a different temperature than the office. An unoccupied room can operate at a more economical setpoint. The area used in the evening can receive more heating or cooling.\u003c\/p\u003e\n\u003cp\u003eThis avoids treating the entire house as a single thermal zone when the needs differ.\u003c\/p\u003e\n\u003cp\u003eHowever, an important characteristic of multizone systems must be respected: indoor units connected to the same outdoor unit generally have to operate in a compatible mode. With a conventional residential multizone system, one should not expect to heat one room while another simultaneously requests cooling.\u003c\/p\u003e\n\u003ch3\u003eSEER2 of 25: high seasonal efficiency\u003c\/h3\u003e\n\u003cp\u003eThe brochure gives the SENA-18HF-MOA a \u003cstrong\u003eSEER2 of 25\u003c\/strong\u003e and an \u003cstrong\u003eEER2 of 15\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese values are particularly interesting in a multizone system, where the compressor must constantly adjust its speed to meet the needs of several spaces.\u003c\/p\u003e\n\u003cp\u003eSenville also presents this product as ENERGY STAR certified and advertises up to 50% energy savings under certain comparison conditions. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we prefer never to turn this type of percentage into a promise about the electricity bill. Actual consumption depends greatly on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe previous system;\u003c\/li\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003ethe requested temperatures;\u003c\/li\u003e\n\u003cli\u003eschedules;\u003c\/li\u003e\n\u003cli\u003ethe number of active zones;\u003c\/li\u003e\n\u003cli\u003eoutdoor temperatures;\u003c\/li\u003e\n\u003cli\u003ethe use of supplemental electric heating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCertified ratings such as \u003cstrong\u003eSEER2, EER2, and HSPF2\u003c\/strong\u003e remain the best tools for objectively comparing several systems.\u003c\/p\u003e\n\u003ch3\u003eHSPF2 of 10.4 and operation down to -30 °C\u003c\/h3\u003e\n\u003cp\u003eThe SENA-18HF-MOA is presented as a \u003cstrong\u003ecold-climate heat pump\u003c\/strong\u003e, with heating operation advertised down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e. The brochure confirms this minimum outdoor temperature limit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAirGreen’s data indicate approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20,000 BTU\/h at -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e19,000 BTU\/h at -15 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eup to \u003cstrong\u003e10,000 BTU\/h at -30 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe COP listed in the specifications is approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.53 at -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eapproximately \u003cstrong\u003e1.3 at -30 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis shows why it is necessary to analyze more than just the “-30 °C” mention.\u003c\/p\u003e\n\u003cp\u003eAt -30 °C, the unit can still produce heat, but its available capacity is significantly lower than at milder temperatures.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner in \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, \u003cstrong\u003eMontréal\u003c\/strong\u003e, or the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e, this means that supplemental heating may still be necessary during periods of extreme cold, depending on the building’s heat loss.\u003c\/p\u003e\n\u003ch3\u003eMultizone heating adds another dimension to the calculation\u003c\/h3\u003e\n\u003cp\u003eWith a single-zone system, we mainly compare the unit’s capacity with the heating load of a space.\u003c\/p\u003e\n\u003cp\u003eIn a three-zone system, simultaneous demand must also be considered.\u003c\/p\u003e\n\u003cp\u003eSuppose three rooms that each require several thousand BTUs on a very cold day. The sum of their needs may exceed the capacity the outdoor unit can provide at that specific moment.\u003c\/p\u003e\n\u003cp\u003eThat is why a serious multi-zone selection does not simply consist of adding three indoor units until reaching a number that seems acceptable.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we instead examine:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe needs of each zone;\u003c\/li\u003e\n\u003cli\u003esimultaneous demand;\u003c\/li\u003e\n\u003cli\u003ethe outdoor unit's low-temperature capacity;\u003c\/li\u003e\n\u003cli\u003ehow occupants use each room;\u003c\/li\u003e\n\u003cli\u003ethe presence of supplemental heating.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eWiFi included: particularly useful with multiple zones\u003c\/h3\u003e\n\u003cp\u003eSenville indicates smart app control and Alexa integration. The system allows users to create schedules and change settings remotely. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a three-zone system, this feature is more useful than on a simple single-zone system.\u003c\/p\u003e\n\u003cp\u003eFor example, a homeowner can:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003elower a bedroom's temperature during the day;\u003c\/li\u003e\n\u003cli\u003ekeep an office at a different setpoint;\u003c\/li\u003e\n\u003cli\u003eschedule the main living area according to occupancy hours;\u003c\/li\u003e\n\u003cli\u003eadjust a zone without going to the remote control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe brochure also mentions a \u003cstrong\u003eUSB WiFi kit\u003c\/strong\u003e in the configuration shown. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eSelf-diagnostic and leak detection\u003c\/h3\u003e\n\u003cp\u003eThe documentation mentions an integrated \u003cstrong\u003eself-diagnostic and leak detection\u003c\/strong\u003e system. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn a multi-zone system, this feature is useful because the circuit is more complex than with a single-zone system.\u003c\/p\u003e\n\u003cp\u003eIt includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emultiple refrigerant lines;\u003c\/li\u003e\n\u003cli\u003emultiple indoor units;\u003c\/li\u003e\n\u003cli\u003emore connections;\u003c\/li\u003e\n\u003cli\u003emultiple condensate drains;\u003c\/li\u003e\n\u003cli\u003emultiple electronic controls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA diagnostic code can help guide service, but it does not replace a refrigeration technician's measurements when capacity becomes insufficient or one zone behaves differently from the others.\u003c\/p\u003e\n\u003ch2\u003eWhy installing a three-zone system requires much more planning than a simple mini-split\u003c\/h2\u003e\n\u003ch3\u003eR-454B and precharge up to 75 feet according to the brochure\u003c\/h3\u003e\n\u003cp\u003eThe documentation indicates a charge of \u003cstrong\u003e78.31 oz of R-454B\u003c\/strong\u003e and a total precharge for up to \u003cstrong\u003e75 feet\u003c\/strong\u003e for the outdoor unit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a multi-zone system, the total line length quickly becomes substantial.\u003c\/p\u003e\n\u003cp\u003eThree indoor units can be installed on three different walls, or even on different floors. We therefore need to plan:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe length of each circuit;\u003c\/li\u003e\n\u003cli\u003etotal length;\u003c\/li\u003e\n\u003cli\u003eheight differences;\u003c\/li\u003e\n\u003cli\u003edrain routing;\u003c\/li\u003e\n\u003cli\u003ecable routing;\u003c\/li\u003e\n\u003cli\u003eoutdoor line sets;\u003c\/li\u003e\n\u003cli\u003eaccess for servicing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe fact that the system is precharged does not mean that every installation can automatically be completed without adjustment. The final charge must correspond to the actual lengths and the manufacturer's requirements.\u003c\/p\u003e\n\u003ch3\u003e1\/4 in – 3\/8 in piping\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing indicates 1\/4 in – 3\/8 in piping.\u003c\/p\u003e\n\u003cp\u003eThese relatively compact dimensions make it easier to route the lines than with large central systems.\u003c\/p\u003e\n\u003cp\u003eBut in a three-zone installation, aesthetics must be considered.\u003c\/p\u003e\n\u003cp\u003eThree pairs of lines running up a façade can become much more visible than a single-zone installation. At AirGreen, we therefore try to group and organize the runs to limit the visual impact.\u003c\/p\u003e\n\u003cp\u003eOn the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, in Laval, or in Montreal's residential neighborhoods, this detail often makes a major difference in the perceived quality of the installation.\u003c\/p\u003e\n\u003ch3\u003e137 lb outdoor unit: the location must be properly prepared\u003c\/h3\u003e\n\u003cp\u003eThe brochure gives the outdoor unit's approximate dimensions as:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e37.24 × 16.14 × 31.89 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e137.35 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe outdoor airflow can reach approximately \u003cstrong\u003e2,130.7 CFM\u003c\/strong\u003e, while the stated sound level is \u003cstrong\u003e61.5 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe must therefore select a location that takes into account:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003esnow accumulation;\u003c\/li\u003e\n\u003cli\u003edrainage during defrost;\u003c\/li\u003e\n\u003cli\u003enoise;\u003c\/li\u003e\n\u003cli\u003eclearances;\u003c\/li\u003e\n\u003cli\u003eneighboring properties;\u003c\/li\u003e\n\u003cli\u003ethe length of the three refrigerant line runs;\u003c\/li\u003e\n\u003cli\u003efuture access to the compressor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAn outdoor location that seems convenient for the first indoor unit may make the other two runs unnecessarily long. That is why the overall routing must be planned before the first hole is drilled.\u003c\/p\u003e\n\u003ch3\u003eMCA 17.5 A and maximum protection 20 A\u003c\/h3\u003e\n\u003cp\u003eThe brochure states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 17.5 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003emaximum fuse: 20 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e power supply.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe AirGreen data sheet rounds the MCA up to \u003cstrong\u003e18 A\u003c\/strong\u003e and also indicates an MOP of \u003cstrong\u003e20 A\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a system capable of supplying up to three zones, this electrical demand remains relatively modest.\u003c\/p\u003e\n\u003cp\u003eNevertheless, the circuit must be sized according to the nameplate data and the requirements applicable to the job site.\u003c\/p\u003e\n\u003ch3\u003eThree drains, three potential problems if the route is poorly designed\u003c\/h3\u003e\n\u003cp\u003eWith three indoor units, up to three condensate drains must also be managed.\u003c\/p\u003e\n\u003cp\u003eOn site, this is just as important as the refrigerant piping.\u003c\/p\u003e\n\u003cp\u003eWhenever possible, we aim for gravity drainage with a continuous slope.\u003c\/p\u003e\n\u003cp\u003ePoor planning can lead to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eunnecessary condensate pumps;\u003c\/li\u003e\n\u003cli\u003enoise;\u003c\/li\u003e\n\u003cli\u003ebackflow;\u003c\/li\u003e\n\u003cli\u003eleaks;\u003c\/li\u003e\n\u003cli\u003eadditional maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a bedroom, a small condensate pump that starts regularly can become much more disruptive than anticipated when the quote was prepared.\u003c\/p\u003e\n\u003ch3\u003eAutomatic louver control\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen data sheet indicates automatic louver control:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evertical: automatic\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ehorizontal: automatic\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis function facilitates air distribution in each room.\u003c\/p\u003e\n\u003cp\u003eHowever, it does not replace the proper placement of the indoor unit.\u003c\/p\u003e\n\u003cp\u003eIn a bedroom, we avoid having the airflow point directly at the bed whenever possible. In an office, we avoid blowing directly onto the workstation. In a living room, we instead try to use the length of the room to promote better distribution.\u003c\/p\u003e\n\u003ch3\u003eThree small zones should not be treated as one 18,000-BTU zone.\u003c\/h3\u003e\n\u003cp\u003eA common mistake when choosing a multi-zone system is to reason as if it were a single-zone system.\u003c\/p\u003e\n\u003cp\u003eThe homeowner sees “18,000 BTU” and assumes they automatically have 6,000 BTU available at all times in each of the three rooms.\u003c\/p\u003e\n\u003cp\u003eThe reality is more dynamic.\u003c\/p\u003e\n\u003cp\u003eThe compressor shares its capacity according to demand. If only one zone is operating, the system may reduce its output. If all three zones demand significant heating simultaneously, the total capacity is distributed.\u003c\/p\u003e\n\u003cp\u003eThat is why we analyze \u003cstrong\u003esimultaneous loads\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat area can this system heat and cool?\u003c\/h3\u003e\n\u003cp\u003eThe brochure associated with the SENA-18HF\/D mentions an indicative range of approximately \u003cstrong\u003e750 to 1,250 sq. ft.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis information must be interpreted cautiously in a three-zone configuration.\u003c\/p\u003e\n\u003cp\u003eA very well-insulated 1,000 sq. ft. dwelling does not have the same load as an older 1,000 sq. ft. floor with several windows and exposed walls.\u003c\/p\u003e\n\u003cp\u003eFloor area alone does not determine the right choice.\u003c\/p\u003e\n\u003cp\u003eWe consider:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewindow orientation;\u003c\/li\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003enumber of floors;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003esun exposure;\u003c\/li\u003e\n\u003cli\u003enumber of occupants;\u003c\/li\u003e\n\u003cli\u003ecurrent heating system;\u003c\/li\u003e\n\u003cli\u003eparts distribution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDisplayed provincial rebate: $2,400\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet provided with the product indicates a \u003cstrong\u003e$2,400 provincial rebate\u003c\/strong\u003e for this combination.\u003c\/p\u003e\n\u003cp\u003eIt also mentions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eENERGY STAR: yes\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold Climate: yes\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eENERGY STAR number \u003cstrong\u003e3630058\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe brochure confirms ENERGY STAR certification and positions the system as a cold-climate heat pump. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, all financial assistance must be confirmed when the quote is prepared, especially for a multi-zone system where eligibility may depend on the exact combination of the outdoor unit and indoor units.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a difference between the AirGreen product sheet and the brochure\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years compressor – 10 years parts – 0 years labor.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe attached brochure instead indicates a standard warranty of \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical table on page 5 also states \u003cstrong\u003e10 years compressor \/ 5 years parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference must be confirmed before purchase. Coverage may depend on the retailer’s program, product registration, or applicable commercial terms.\u003c\/p\u003e\n\u003ch3\u003eWhy three zones may be more attractive than three separate systems\u003c\/h3\u003e\n\u003cp\u003eThree single-zone systems would have three outdoor units.\u003c\/p\u003e\n\u003cp\u003eA multi-zone system uses only one.\u003c\/p\u003e\n\u003cp\u003eThis can reduce:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe outdoor space occupied;\u003c\/li\u003e\n\u003cli\u003ethe number of supports;\u003c\/li\u003e\n\u003cli\u003ethe visual impact;\u003c\/li\u003e\n\u003cli\u003ethe number of outdoor electrical circuits;\u003c\/li\u003e\n\u003cli\u003ethe space occupied on a balcony or along a house.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn Montreal, where outdoor space can be very limited, this advantage can sometimes be decisive.\u003c\/p\u003e\n\u003cp\u003eOn the other hand, a multi-zone system shares a single outdoor unit. A major failure of this unit can therefore affect all zones simultaneously.\u003c\/p\u003e\n\u003cp\u003eIt is a compromise to consider when making your choice.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for a three-zone heat pump\u003c\/h3\u003e\n\u003cp\u003eA properly executed multi-zone installation requires more preparation than a single-zone system.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we analyze:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe load of each room;\u003c\/li\u003e\n\u003cli\u003eindoor unit combinations;\u003c\/li\u003e\n\u003cli\u003esimultaneous capacity;\u003c\/li\u003e\n\u003cli\u003elow-temperature performance;\u003c\/li\u003e\n\u003cli\u003erefrigerant line lengths;\u003c\/li\u003e\n\u003cli\u003ethe three drains;\u003c\/li\u003e\n\u003cli\u003eoutdoor routing;\u003c\/li\u003e\n\u003cli\u003eclearances;\u003c\/li\u003e\n\u003cli\u003eelectrical supply;\u003c\/li\u003e\n\u003cli\u003erebates;\u003c\/li\u003e\n\u003cli\u003efuture access for servicing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe serve \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e for the installation, replacement, and maintenance of multi-zone HVAC systems.\u003c\/p\u003e\n\u003ch3\u003eOur assessment of the SENVILLE SENA-18HF-MOA\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA-18HF-MOA\u003c\/strong\u003e platform brings together several features that are particularly relevant for a small multi-zone system:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ecompatibility with \u003cstrong\u003e2 to 3 zones\u003c\/strong\u003e according to the brochure;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e18,000 BTU\u003c\/strong\u003e capacity class;\u003c\/li\u003e\n\u003cli\u003eannounced technical cooling capacity of up to \u003cstrong\u003e28,000 BTU\/h\u003c\/strong\u003e in modulation;\u003c\/li\u003e\n\u003cli\u003emodulating heating capacity up to \u003cstrong\u003e27,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSEER2 25\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEER2 15\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSPF2-4 10.4\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eheating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eR-454B\u003c\/strong\u003e refrigerant;\u003c\/li\u003e\n\u003cli\u003eENERGY STAR;\u003c\/li\u003e\n\u003cli\u003eCold Climate;\u003c\/li\u003e\n\u003cli\u003eWiFi;\u003c\/li\u003e\n\u003cli\u003emaximum electrical protection of \u003cstrong\u003e20 A\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is particularly useful when several small rooms need to be controlled while limiting the number of outdoor units.\u003c\/p\u003e\n\u003cp\u003eHowever, the most important point remains selecting the actual combination. The attached brochure shows two 9,000 BTU indoor units, even though the SENA-18HF-MOA technical sheet confirms compatibility with up to three zones. A three-zone configuration must therefore be validated with the exact indoor models before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTo get a quote for a SENVILLE 3-zone heat pump, contact AirGreen. We can check the capacity of each room, the combination of indoor units, piping lengths, and applicable financial assistance before confirming the equipment for your property in Montreal, Laval, Longueuil, the North Shore, or the South Shore.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56120039964964,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_3_ZONES_SENVILLE_R454B_18000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789057749"},{"product_id":"thermopompe-3-zones-senville-r454b-27000-btu","title":"SENVILLE R454B 3-Zone Heat Pump | 27000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eThree independent zones, one condenser and heating capacity that remains relevant even during Quebec’s coldest weather\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE R454B 3-Zone Heat Pump | 27000 BTU\u003c\/strong\u003e is intended for properties where a single wall-mounted unit cannot provide satisfactory air distribution, but installing three outdoor condensers would be unnecessarily cumbersome. For a home in \u003cstrong\u003eMontreal\u003c\/strong\u003e, a duplex in \u003cstrong\u003eLaval\u003c\/strong\u003e, a condo on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, a floor with several bedrooms in \u003cstrong\u003eLongueuil\u003c\/strong\u003e or a residence on the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e, the principle is simple: three indoor zones can be controlled from a single outdoor unit.\u003c\/p\u003e\n\u003cp\u003eThe core of this configuration is the \u003cstrong\u003eSENVILLE SENA-28HF-MOA\u003c\/strong\u003e condenser, using \u003cstrong\u003eR454B refrigerant\u003c\/strong\u003e and capable of operating in heating mode down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e. For the TripleZone match that interests us here, the certified reference is \u003cstrong\u003eAHRI 215735314\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis AHRI number is particularly important because the same SENA-28HF-MOA condenser can be used in several multi-zone configurations. The AHRI certificate for the TripleZone match specifically indicates \u003cstrong\u003e27,000 BTU\/h for cooling, 23.0 SEER2, 12.5 EER2, 27,000 BTU\/h nominal heating capacity and 10.5 HSPF2 for Region IV\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we consider this distinction essential. A customer searching only for “SENA-28HF-MOA” online can easily come across a DoubleZone, TripleZone or QuadZone listing and find slightly different figures. These are not necessarily errors: \u003cstrong\u003ethe certified efficiency depends on the exact match between the outdoor unit and the indoor units\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eAn important clarification about the attached brochure: same condenser, different configuration\u003c\/h3\u003e\n\u003cp\u003eThe documentation provided with this listing clearly illustrates why you need to look beyond the condenser number.\u003c\/p\u003e\n\u003cp\u003eThe attached brochure shows the \u003cstrong\u003eSENA-28HF-MOA in a DoubleZone configuration\u003c\/strong\u003e, with two 12,000 BTU indoor units. It also indicates that this outdoor platform can support \u003cstrong\u003e2 to 4 zones\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor this DoubleZone configuration, the brochure lists 28,000 BTU and an efficiency rating of 23.8. For the \u003cstrong\u003eTripleZone configuration covered in this article\u003c\/strong\u003e, AHRI match 215735314 is instead certified at \u003cstrong\u003e27,000 BTU and 23.0 SEER2\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville also officially markets this platform in a \u003cstrong\u003eTri-Zone\u003c\/strong\u003e configuration, with three indoor units, a nominal capacity of 27,000 BTU and an efficiency rating of 23 SEER2. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis distinction helps avoid a common error when comparing multi-zone heat pumps: mixing data from the same condenser used with different combinations of indoor units.\u003c\/p\u003e\n\u003ch3\u003eThe main features of the TripleZone configuration\u003c\/h3\u003e\n\u003cp\u003eFor the pairing presented here, we are focusing in particular on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e3 indoor zones\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENA-28HF-MOA\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735314\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCertified cooling capacity: 27,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 23.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 12.5\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2: 10.5\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating: 27,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCapacity at -8 °C: 30,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCapacity at -15 °C: 27,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum capacity indicated at -30 °C: 14,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP at -8 °C: approximately 2.36\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP at -30 °C: approximately 1.26\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMinimum heating temperature: -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR Cold Climate: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR ID: 3630061\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 30 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum protection: 35 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound level: approximately 61 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor dimensions: 37.24 × 16.14 × 31.89 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi: included\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSenville’s platform documentation also confirms a minimum operating temperature of \u003cstrong\u003e-30 °C\u003c\/strong\u003e, a 120.61 oz R454B charge, a 208\/230 V power supply, an MCA of 30 A, and a maximum protection of 35 A. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThree zones do not mean three completely independent heat pumps\u003c\/h3\u003e\n\u003cp\u003eA TripleZone heat pump has three indoor units, but they all share the same outdoor compressor.\u003c\/p\u003e\n\u003cp\u003eEach zone can have:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eits own setpoint temperature;\u003c\/li\u003e\n\u003cli\u003eits own fan speed;\u003c\/li\u003e\n\u003cli\u003eits own schedule;\u003c\/li\u003e\n\u003cli\u003eits own location;\u003c\/li\u003e\n\u003cli\u003eits own airflow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis makes it possible, for example, to install one head in the primary bedroom, a second in an office, and a third in the living area.\u003c\/p\u003e\n\u003cp\u003eHowever, all available capacity comes from the \u003cstrong\u003esame SENA-28HF-MOA condenser\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis is an important distinction in our sizing work at AirGreen. We do not calculate three rooms separately and then simply add three BTU figures without considering how the system performs as a whole.\u003c\/p\u003e\n\u003cp\u003eSimultaneous needs matter.\u003c\/p\u003e\n\u003cp\u003eA heavily glazed south-facing living room may require substantial cooling at 4 p.m., while a north-facing bedroom may require very little. Conversely, a winter night can create high demand in several zones at the same time.\u003c\/p\u003e\n\u003cp\u003eThe Inverter technology then adjusts the compressor’s operation and distributes its available capacity among the units that need it.\u003c\/p\u003e\n\u003ch3\u003eA modulation range suited to multi-zone systems\u003c\/h3\u003e\n\u003cp\u003eSenville’s current TripleZone page indicates an approximate cooling range of \u003cstrong\u003e7,200 to 37,000 BTU\/h\u003c\/strong\u003e and a heating range of approximately \u003cstrong\u003e8,400 to 36,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation is particularly useful in a three-zone installation.\u003c\/p\u003e\n\u003cp\u003eA multi-zone heat pump almost never operates with exactly the same demand in all three rooms.\u003c\/p\u003e\n\u003cp\u003eIn a home in \u003cstrong\u003eBoucherville\u003c\/strong\u003e, for example, the ground floor may receive plenty of sunlight during the day while two upstairs bedrooms are already comfortable. The system can adjust its operation rather than treating all three zones identically.\u003c\/p\u003e\n\u003cp\u003eThis is one of the main advantages of a properly sized multi-zone system: \u003cstrong\u003ewe bring heating and cooling output closer to the actual needs of each space\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e23 SEER2: high efficiency for a three-zone configuration\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e23.0 SEER2\u003c\/strong\u003e rating deserves particular attention.\u003c\/p\u003e\n\u003cp\u003eA multi-split system involves more piping and must distribute its capacity among several indoor units. Achieving seasonal efficiency of this magnitude on a TripleZone system is therefore a notable advantage.\u003c\/p\u003e\n\u003cp\u003eThe AHRI certificate precisely confirms this \u003cstrong\u003e23.0 SEER2\u003c\/strong\u003e for pairing 215735314. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville also presents its Tri-Zone system as \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e-certified, with smart control and heating down to -30 °C. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eNevertheless, we avoid turning this figure into a promise of annual savings.\u003c\/p\u003e\n\u003cp\u003eTwo installations using exactly the same heat pump can show very different energy consumption.\u003c\/p\u003e\n\u003cp\u003eThe most important factors remain:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003esolar exposure;\u003c\/li\u003e\n\u003cli\u003ethe requested temperature;\u003c\/li\u003e\n\u003cli\u003eactual use of the three zones;\u003c\/li\u003e\n\u003cli\u003ewindow quality;\u003c\/li\u003e\n\u003cli\u003eair infiltration;\u003c\/li\u003e\n\u003cli\u003ethe length of the lines;\u003c\/li\u003e\n\u003cli\u003ethe sizing of each indoor unit;\u003c\/li\u003e\n\u003cli\u003ethe quality of the commissioning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e30,000 BTU at -8 °C: why this figure is particularly interesting in Quebec\u003c\/h3\u003e\n\u003cp\u003eThe system’s nominal capacity is 27,000 BTU, but the model data indicate approximately \u003cstrong\u003e30,000 BTU\/h of heating at -8 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis may seem counterintuitive, but an inverter compressor can be certified at different operating points with capacities that do not necessarily follow a simple downward line.\u003c\/p\u003e\n\u003cp\u003eAt -15 °C, the indicated capacity remains approximately \u003cstrong\u003e27,000 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a TripleZone heat pump, maintaining this capacity is particularly interesting, since several zones may call for heating simultaneously.\u003c\/p\u003e\n\u003cp\u003eIt is precisely at these temperatures of -8 °C to -15 °C that we can truly assess a heat pump’s potential to reduce the operation of electric baseboard heaters in a Greater Montreal home.\u003c\/p\u003e\n\u003ch3\u003eAt -30 °C, the unit still operates, but its capacity is different\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE is designed for heating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e. The platform brochure confirms this outdoor limit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, the maximum published capacity at this temperature is approximately \u003cstrong\u003e14,000 BTU\/h\u003c\/strong\u003e, with a COP of around \u003cstrong\u003e1.26\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis means two things.\u003c\/p\u003e\n\u003cp\u003eFirst, the system remains capable of producing heat under conditions in which many standard heat pumps are no longer designed to operate.\u003c\/p\u003e\n\u003cp\u003eSecond, you must never confuse “operates at -30 °C” with “provides 27,000 or 30,000 BTUs at -30 °C.”\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we compare this available capacity with the building’s heat loss.\u003c\/p\u003e\n\u003cp\u003eIf the property loses 25,000 BTU\/h at -30 °C and the heat pump provides only 14,000, supplemental heating is still needed to cover the difference.\u003c\/p\u003e\n\u003ch3\u003eCOP of 2.36 at -8 °C: understanding this figure simply\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eCOP\u003c\/strong\u003e compares delivered heat with electricity consumed.\u003c\/p\u003e\n\u003cp\u003eA system with a COP of 2.36 theoretically provides approximately 2.36 units of heat for each unit of electrical energy consumed by the heat pump under the corresponding test conditions.\u003c\/p\u003e\n\u003cp\u003eAt -30 °C, the COP drops to around 1.26.\u003c\/p\u003e\n\u003cp\u003eThis decrease is normal.\u003c\/p\u003e\n\u003cp\u003eThe compressor has to work harder when the difference between the outdoor and indoor temperatures becomes very large.\u003c\/p\u003e\n\u003cp\u003eWe therefore consider performance at multiple temperatures rather than relying on a single annual figure.\u003c\/p\u003e\n\u003ch2\u003eAirGreen installation: with three zones, route design becomes just as important as choosing the heat pump\u003c\/h2\u003e\n\u003ch3\u003eThree heads solve a real air-distribution problem\u003c\/h3\u003e\n\u003cp\u003eOne of the best use cases for a \u003cstrong\u003eTripleZone\u003c\/strong\u003e heat pump is a condo or house with several rooms that do not communicate well with one another.\u003c\/p\u003e\n\u003cp\u003eConsider a property with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea living room;\u003c\/li\u003e\n\u003cli\u003ea primary bedroom;\u003c\/li\u003e\n\u003cli\u003ea closed office.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEven a very large wall-mounted unit installed in the living room will not be able to properly control the other two rooms when their doors are closed.\u003c\/p\u003e\n\u003cp\u003eAdding more BTUs to the living room does not solve this problem.\u003c\/p\u003e\n\u003cp\u003eWith three indoor units, each zone receives its own heated or cooled air directly.\u003c\/p\u003e\n\u003cp\u003eThis is one of the main reasons we sometimes recommend a multizone system rather than a higher-capacity single-split system.\u003c\/p\u003e\n\u003ch3\u003eAn AirGreen experience in Ahuntsic-Cartierville: three zones and a flat roof\u003c\/h3\u003e\n\u003cp\u003eIn July 2026, our AirGreen team completed a \u003cstrong\u003eTripleZone installation in Ahuntsic-Cartierville, Montreal\u003c\/strong\u003e, with three indoor units and a single condenser installed on a flat roof.\u003c\/p\u003e\n\u003cp\u003eThis project clearly illustrates the constraints of a real three-zone system: the condenser had to be securely installed on a support suitable for the roof, the refrigerant line runs had to serve several areas of the building, and future access for maintenance had to remain possible.\u003c\/p\u003e\n\u003cp\u003eThe evacuation and commissioning equipment was still visible in the site photos, illustrating a step the client generally does not see after the work is completed but that directly affects system reliability: \u003cstrong\u003erefrigeration preparation before startup\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe project involved a GREE heat pump rather than a Senville, but the installation challenge is directly comparable: three zones mean more piping, more connections, and more decisions about routing.\u003c\/p\u003e\n\u003ch3\u003eThe same outdoor unit can serve 2 to 4 zones\u003c\/h3\u003e\n\u003cp\u003eThe Senville brochure clearly states that the \u003cstrong\u003eSENA-28HF-MOA supports 2 to 4 zones\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a homeowner, this flexibility can be appealing.\u003c\/p\u003e\n\u003cp\u003eHowever, this does not mean that a fourth head can always be added without reevaluating the system.\u003c\/p\u003e\n\u003cp\u003eWe must verify:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe allowable capacities of the indoor units;\u003c\/li\u003e\n\u003cli\u003ethe combination authorized by Senville;\u003c\/li\u003e\n\u003cli\u003ethe total connected BTUs;\u003c\/li\u003e\n\u003cli\u003ethe number of available ports;\u003c\/li\u003e\n\u003cli\u003ethe length limits;\u003c\/li\u003e\n\u003cli\u003ethe applicable AHRI match;\u003c\/li\u003e\n\u003cli\u003ethe impact on the rebate and certified efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe TripleZone configuration in this article must therefore be considered its own certified system, even though it uses the same condenser as other Senville products.\u003c\/p\u003e\n\u003ch3\u003e100 feet of R454B precharge: a real advantage for three refrigerant line runs\u003c\/h3\u003e\n\u003cp\u003eThe brochure indicates a \u003cstrong\u003erefrigerant precharge capable of covering up to 100 ft\u003c\/strong\u003e on the SENA-28HF-MOA platform. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville specifies the same precharge for the Tri-Zone version currently on the market. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis feature becomes especially significant when there are three indoor units.\u003c\/p\u003e\n\u003cp\u003eOne head may be close to the condenser, while another may be located on the opposite floor of the property.\u003c\/p\u003e\n\u003cp\u003eNevertheless, we must distinguish between \u003cstrong\u003eavailable refrigerant charge\u003c\/strong\u003e and \u003cstrong\u003emaximum permitted lengths\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe limits for each branch, the combined length, and the height differences must always comply with the installation manual.\u003c\/p\u003e\n\u003ch3\u003e1\/4 in – 3\/8 in piping: check each indoor unit\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate \u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e connections for the wall-mounted units concerned.\u003c\/p\u003e\n\u003cp\u003eIn a three-zone system, this means three pairs of pipes to route between the indoor units and the condenser.\u003c\/p\u003e\n\u003cp\u003eOn a brick property in Montreal, we can sometimes group part of the piping in the same exterior line set cover.\u003c\/p\u003e\n\u003cp\u003eIn a home on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, two units may be installed on one side of the building and a third on another wall.\u003c\/p\u003e\n\u003cp\u003eEvery project therefore completely changes the refrigerant piping route.\u003c\/p\u003e\n\u003cp\u003eThat is also why the price of a TripleZone installation depends on more than just the price of the heat pump. Line length, height, penetrations, drains, line covers, and access affect the actual work.\u003c\/p\u003e\n\u003ch3\u003eR454B: more connections mean more reasons to take care during commissioning\u003c\/h3\u003e\n\u003cp\u003eThe system contains approximately \u003cstrong\u003e120.61 oz of R454B\u003c\/strong\u003e in the platform configuration presented in the brochure. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eR454B belongs to the A2L category.\u003c\/p\u003e\n\u003cp\u003eSenville also highlights \u003cstrong\u003eself-diagnostics and leak detection\u003c\/strong\u003e features in this generation of systems. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a TripleZone installation, we have more refrigerant connections than with a single-split system.\u003c\/p\u003e\n\u003cp\u003eEach connection must therefore be prepared carefully.\u003c\/p\u003e\n\u003cp\u003eOur commissioning includes checking the connections, leak testing, evacuation, and operational testing of each zone.\u003c\/p\u003e\n\u003ch3\u003eAn outdoor unit weighing nearly 170 lb\u003c\/h3\u003e\n\u003cp\u003eThe condenser measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e37.24 in × 16.14 in × 31.89 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e168.43 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIts published sound level is approximately \u003cstrong\u003e61 dB(A)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis weight changes how we prepare the support.\u003c\/p\u003e\n\u003cp\u003eFor a ground installation, we must maintain adequate clearance above the snow.\u003c\/p\u003e\n\u003cp\u003eOn a flat roof, stability, access, load distribution, and membrane protection become priorities.\u003c\/p\u003e\n\u003cp\u003eFor a wall-mounted installation, we check the structure and the possible transmission of vibrations.\u003c\/p\u003e\n\u003ch3\u003e30 A MCA and 35 A MOP: plan the electrical work from the time of the quote\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epower supply \u003cstrong\u003e208\/230 V\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e30 A MCA\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emaximum protection of \u003cstrong\u003e35 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe therefore inspect the electrical panel before finalizing the project.\u003c\/p\u003e\n\u003cp\u003eThis step prevents discovering on the morning of installation that the panel lacks the required space, circuit, or configuration.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi included: especially convenient with three zones\u003c\/h3\u003e\n\u003cp\u003eSenville provides smart app control and Alexa compatibility across its current TripleZone lineup. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWith a three-indoor-unit system, the benefit is obvious.\u003c\/p\u003e\n\u003cp\u003eA homeowner can create different schedules for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe bedroom;\u003c\/li\u003e\n\u003cli\u003ethe office;\u003c\/li\u003e\n\u003cli\u003ethe living room.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is not necessary to keep all three zones at the same temperature all day.\u003c\/p\u003e\n\u003cp\u003eThis room-by-room control is one of the main advantages of a \u003cstrong\u003emulti-zone system\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eLogisVert: why the displayed amount is $3,600\u003c\/h3\u003e\n\u003cp\u003eThe important data point for the LogisVert program is the heating capacity at \u003cstrong\u003e-8 °C\u003c\/strong\u003e, namely \u003cstrong\u003e30,000 BTU\/h\u003c\/strong\u003e for the pairing presented.\u003c\/p\u003e\n\u003cp\u003eHydro-Québec currently indicates assistance of \u003cstrong\u003e$120 per 1,000 BTU\/h at -8 °C\u003c\/strong\u003e for an ENERGY STAR cold-climate-rated heat pump when all conditions are met. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe calculation is therefore:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e30 × $120 = $3,600\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis corresponds to the \u003cstrong\u003e$3,600 LogisVert provincial rebate\u003c\/strong\u003e indicated for this system.\u003c\/p\u003e\n\u003cp\u003eThe installation date remains important, since Hydro-Québec specifies that the applicable amount is determined according to the rules in effect on that date. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eSome multi-unit residential buildings could theoretically receive $6,600\u003c\/h3\u003e\n\u003cp\u003eFor certain \u003cstrong\u003eeligible multi-unit residential buildings\u003c\/strong\u003e, an additional bonus of $100 per 1,000 BTU\/h at -8 °C is offered for eligible installations completed since June 15, 2026, bringing the total rate to \u003cstrong\u003e$220 per 1,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWith 30,000 BTU\/h:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e30 × $220 = $6,600\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis amount is not automatic. The building must meet the program’s specific criteria.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore verify the address, building type, installation date, and exact pairing before presenting financial assistance as eligible.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a difference that must be clarified before the sale\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet provided for this configuration indicates a warranty \u003cstrong\u003e10-10-0\u003c\/strong\u003e, with the possibility of additional warranty coverage.\u003c\/p\u003e\n\u003cp\u003eHowever, the attached Senville brochure indicates \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e for the SENA-28HF-MOA platform. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe current Senville TripleZone page also displays a ten-year manufacturer’s warranty on the compressor and five years on parts. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe documents therefore do not present exactly the same coverage.\u003c\/p\u003e\n\u003cp\u003eThe warranty applicable to the customer must be the one specified on the \u003cstrong\u003efinal AirGreen quote\u003c\/strong\u003e, taking into account the warranty program, registration, and any additional protection offered.\u003c\/p\u003e\n\u003ch3\u003eMistakes we avoid on a TripleZone installation\u003c\/h3\u003e\n\u003ch4\u003eChoosing three units solely by adding up their BTUs\u003c\/h4\u003e\n\u003cp\u003eEach room has its own heating load. Three zones with equal floor areas do not necessarily require three identical capacities.\u003c\/p\u003e\n\u003ch4\u003eInstalling the heads where the piping is easiest to route\u003c\/h4\u003e\n\u003cp\u003eThe airflow should first be directed toward the space we want to treat. An attractive duct cover does not compensate for poor indoor-unit placement.\u003c\/p\u003e\n\u003ch4\u003eForgetting that the three zones share the condenser\u003c\/h4\u003e\n\u003cp\u003eA TripleZone offers three indoor controls, but the outdoor capacity remains shared.\u003c\/p\u003e\n\u003ch4\u003eMixing up DoubleZone and TripleZone data\u003c\/h4\u003e\n\u003cp\u003eThe SENA-28HF-MOA can display 23.8 in one configuration and \u003cstrong\u003e23.0 SEER2 in the AHRI TripleZone pairing 215735314\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eNeglecting the outdoor unit's location\u003c\/h4\u003e\n\u003cp\u003eWith three zones relying on a single condenser, snow, defrost drainage, vibrations, and service access must be anticipated from the outset.\u003c\/p\u003e\n\u003ch3\u003eWhich projects do we particularly recommend this SENVILLE TripleZone for?\u003c\/h3\u003e\n\u003cp\u003eThis configuration is particularly suitable when a homeowner wants to serve \u003cstrong\u003ethree truly distinct spaces\u003c\/strong\u003e with a single condenser.\u003c\/p\u003e\n\u003cp\u003eFor example:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethree bedrooms;\u003c\/li\u003e\n\u003cli\u003etwo bedrooms and a living room;\u003c\/li\u003e\n\u003cli\u003ea ground floor and two upstairs rooms;\u003c\/li\u003e\n\u003cli\u003ean office, a bedroom, and a living area;\u003c\/li\u003e\n\u003cli\u003ethree zones in a plex or a large condo;\u003c\/li\u003e\n\u003cli\u003ea property with limited outdoor space;\u003c\/li\u003e\n\u003cli\u003ea home where the goal is to significantly reduce electric heating through a cold-climate heat pump.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a completely open area, a single properly sized unit may sometimes make more sense.\u003c\/p\u003e\n\u003cp\u003eFor five or six small enclosed rooms, a different configuration may also be preferable.\u003c\/p\u003e\n\u003cp\u003eOur role at AirGreen is precisely to determine how many zones are truly necessary.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for a SENVILLE 3-Zone heat pump\u003c\/h3\u003e\n\u003cp\u003eA TripleZone installation involves three times as many indoor decisions as a single-zone system.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we plan the locations, piping routes, drains, electrical supply, line-hide covers, outdoor support, and commissioning as one cohesive system.\u003c\/p\u003e\n\u003cp\u003eWe carry out multi-zone installations in \u003cstrong\u003eMontréal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e, in many different types of buildings: single-family homes, condos, plexes, older brick buildings, and newer properties.\u003c\/p\u003e\n\u003cp\u003eThe goal is not simply to achieve three temperatures using three remote controls. We want \u003cstrong\u003eeach zone to receive the appropriate capacity, the condenser to operate properly in winter, and the installation to remain accessible for maintenance throughout its service life\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen quote for your SENVILLE 3-Zone 27,000 BTU\u003c\/h3\u003e\n\u003cp\u003eFor a \u003cstrong\u003eSENVILLE R454B 3-Zone Heat Pump | 27000 BTU\u003c\/strong\u003e in \u003cstrong\u003eMontréal, Laval, Longueuil, on the South Shore or the North Shore\u003c\/strong\u003e, contact AirGreen.\u003c\/p\u003e\n\u003cp\u003eWe can determine the capacity of each of the three zones, check the piping route, confirm the electrical supply, plan the condenser support, and verify eligibility for the \u003cstrong\u003e$3,600 LogisVert rebate\u003c\/strong\u003e according to the rules applicable at the time of installation.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"9 + 9 + 9","offer_id":56201142272292,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true},{"title":"9 + 9 + 12","offer_id":56201142305060,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true},{"title":"12 + 12 + 12","offer_id":56201142337828,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_3_ZONES_SENVILLE_R454B_27000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789057758"},{"product_id":"thermopompe-3-zones-senville-r454b-36000-btu","title":"SENVILLE R454B 3-Zone Heat Pump | 36000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eThree truly independent zones in the home: where the SENVILLE 36,000 BTU becomes more appealing than a single large wall-mounted unit\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eA \u003cstrong\u003e36,000 BTU\u003c\/strong\u003e heat pump may initially seem to be simply a larger heat pump. With the \u003cstrong\u003eSENVILLE SENA-36HF-MOA\u003c\/strong\u003e, maximum capacity is not the most interesting feature: it is the ability to distribute that capacity among \u003cstrong\u003ethree distinct zones\u003c\/strong\u003e of a property while using a single outdoor unit.\u003c\/p\u003e\n\u003cp\u003eFor a home in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, or the South Shore\u003c\/strong\u003e, this design addresses a problem we regularly encounter at AirGreen. A home may have sufficient total heating and cooling capacity while remaining uncomfortable because the air simply does not reach where it is needed.\u003c\/p\u003e\n\u003cp\u003eA typical example is a property with an open-plan living room and kitchen on the main floor, several bedrooms upstairs, and a finished basement. A single wall-mounted unit installed in the living room cannot properly control all three areas. The \u003cstrong\u003eSENVILLE 36,000 BTU 3-zone heat pump\u003c\/strong\u003e instead makes it possible to assign one indoor unit to each area and adjust their temperatures separately.\u003c\/p\u003e\n\u003cp\u003eThe platform used is the \u003cstrong\u003eSENA-36HF-MOA\u003c\/strong\u003e outdoor unit, operating with \u003cstrong\u003eR-454B\u003c\/strong\u003e, providing heating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, with a stated efficiency of \u003cstrong\u003e23 SEER2\u003c\/strong\u003e, an EER2 of \u003cstrong\u003e13\u003c\/strong\u003e, and a Region 4 HSPF2 of \u003cstrong\u003e10.7\u003c\/strong\u003e. The technical documentation also confirms a nominal capacity of 36,000 BTU, a cooling range of \u003cstrong\u003e9,000 to 43,000 BTU\/h\u003c\/strong\u003e, and a heating range of \u003cstrong\u003e10,000 to 44,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThe SENA-36HF-MOA outdoor model is a multi-zone platform, not merely a fixed configuration\u003c\/h3\u003e\n\u003cp\u003eOne point deserves clarification from the outset.\u003c\/p\u003e\n\u003cp\u003eThe first page of the supplied brochure illustrates a \u003cstrong\u003e36,000 BTU two-zone configuration with two 18,000 BTU units\u003c\/strong\u003e, under the commercial reference SENA-36HF-D1818. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e However, the technical table in the same document identifies the \u003cstrong\u003eSENA-36HF-MOA\u003c\/strong\u003e system as a multi-zone outdoor unit capable of serving multiple indoor units. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville also officially markets this platform in a \u003cstrong\u003ethree-zone configuration\u003c\/strong\u003e, with three indoor units, three remote controls, and three installation kits. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis explains why the outdoor unit number remains \u003cstrong\u003eSENA-36HF-MOA\u003c\/strong\u003e, even when the indoor combinations change.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner, the consequence is important: the outdoor model alone should not be compared. The \u003cstrong\u003eexact combination of the three indoor units\u003c\/strong\u003e, the corresponding AHRI listing, and their respective capacities must also be verified.\u003c\/p\u003e\n\u003ch3\u003eThe main characteristics of the AirGreen configuration\u003c\/h3\u003e\n\u003cp\u003eFor this product sheet, the reported data are as follows:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eFeature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e36,000 BTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutdoor unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSENA-36HF-MOA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAHRI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e215735317\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRefrigerant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eR-454B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eENERGY STAR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCold climate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eENERGY STAR number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3630064\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSEER2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e23,0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEER2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13,0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHSPF2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10,7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum outdoor heating temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-30 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacity at -8 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e38,000 BTU\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacity at -15 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e36,000 BTU\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum capacity at -30 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e22,400 BTU\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCOP at -8 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2,12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCOP at -30 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1,47\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMCA\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e37 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMOP\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum outdoor airflow\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eapproximately 3,038 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutdoor sound level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e65 dB(A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutdoor dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e38.58 × 16.34 × 38.39 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWiFi\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eSenville’s documentation confirms several of these characteristics, including \u003cstrong\u003e23 SEER2, EER2 13, HSPF2-4 10.7, MCA 37 A, and maximum fuse 40 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThree zones do not mean fixed 12,000 BTU in each room\u003c\/h3\u003e\n\u003cp\u003eThis is one of the most common mistakes when we explain a multi-zone installation.\u003c\/p\u003e\n\u003cp\u003eAn outdoor unit rated at \u003cstrong\u003e36,000 BTU\u003c\/strong\u003e connected to three heads does not automatically and continuously distribute 12,000 BTU to each one.\u003c\/p\u003e\n\u003cp\u003eThe inverter compressor modulates its output according to demand. The three units can have different capacities, and the available power is distributed according to their operation, within the limits specified by the manufacturer.\u003c\/p\u003e\n\u003cp\u003eSenville’s stated heating range extends from \u003cstrong\u003e10,000 to 44,000 BTU\/h\u003c\/strong\u003e. The cooling range is from \u003cstrong\u003e9,000 to 43,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation capability becomes particularly useful in the fall and spring.\u003c\/p\u003e\n\u003cp\u003eImagine a home in \u003cstrong\u003eLongueuil\u003c\/strong\u003e comprising:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea large open area requiring substantial heating;\u003c\/li\u003e\n\u003cli\u003etwo bedrooms exposed to the sun;\u003c\/li\u003e\n\u003cli\u003ea basement that naturally stays cooler.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAt a given moment, a single zone may demand a lot of energy while the other two require very little adjustment. The inverter allows the outdoor unit to adapt its operation rather than treating all three zones as if their needs were identical.\u003c\/p\u003e\n\u003ch3\u003eThe real advantage of three zones is distribution, not just capacity\u003c\/h3\u003e\n\u003cp\u003eIn our HVAC assessments, we regularly see properties where the owner wants to increase the number of BTUs to solve the problem of an uncomfortable room.\u003c\/p\u003e\n\u003cp\u003eHowever, the problem is not always a lack of BTUs.\u003c\/p\u003e\n\u003cp\u003eSuppose a large heat pump is installed in the living room of a two-story house. It can quickly reach 22 °C in the living room, while a bedroom upstairs remains at 18 °C.\u003c\/p\u003e\n\u003cp\u003eInstalling an even larger head in the living room will not necessarily solve the problem. This unit's thermostat will quickly detect that its own zone has reached the setpoint and reduce its output before enough heat reaches the bedroom.\u003c\/p\u003e\n\u003cp\u003eWith three zones, we can work differently:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eZone 1: open-concept main-floor area\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eZone 2: upper floor and bedroom area\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eZone 3: basement, office, or another separate space\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe result is often much more logical from a comfort standpoint.\u003c\/p\u003e\n\u003ch3\u003eEach zone can have its own temperature\u003c\/h3\u003e\n\u003cp\u003eThe multi-zone heat pump allows the indoor units to be adjusted individually.\u003c\/p\u003e\n\u003cp\u003eFor example, a family could maintain:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e21 °C on the main floor\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e19 °C in the bedrooms at night\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18 °C in a rarely used basement\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen the basement becomes a family room in the evening, its setpoint can be increased independently of the other two areas.\u003c\/p\u003e\n\u003cp\u003eThis is one of the most concrete advantages of a \u003cstrong\u003e3-zone heat pump in Montreal\u003c\/strong\u003e: you do not have to condition every room in exactly the same way.\u003c\/p\u003e\n\u003cp\u003eHowever, an important limitation must be kept in mind. Units connected to the same outdoor unit generally need to operate in compatible modes. One unit cannot continuously call for heating while another requests cooling from the same conventional compressor.\u003c\/p\u003e\n\u003ch3\u003eDown to -30 °C, but with capacity that varies with temperature\u003c\/h3\u003e\n\u003cp\u003eThe Senville brochure indicates that the unit can continue operating in heating mode down to \u003cstrong\u003e-22 °F, or approximately -30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specification sheet provides even more important information: the capacity available at different temperatures.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-8 °C\u003c\/strong\u003e, approximately \u003cstrong\u003e38,000 BTU\/h\u003c\/strong\u003e is indicated.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-15 °C\u003c\/strong\u003e, the published capacity is \u003cstrong\u003e36,000 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-30 °C\u003c\/strong\u003e, the listed maximum capacity drops to approximately \u003cstrong\u003e22,400 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis behavior must be understood before deciding whether the heat pump can become the home's sole heating system.\u003c\/p\u003e\n\u003cp\u003eEven though the unit continues to operate at -30 °C, it does not necessarily provide the nominal 36,000 BTU. If the house loses 30,000 BTU\/h at that temperature, a supplementary heating source will still be necessary.\u003c\/p\u003e\n\u003ch3\u003e22,400 BTU at -30 °C remains a significant capacity\u003c\/h3\u003e\n\u003cp\u003eThe difference from a unit that stops operating completely in extreme cold is significant.\u003c\/p\u003e\n\u003cp\u003eWith approximately \u003cstrong\u003e22,400 BTU\/h available at -30 °C\u003c\/strong\u003e, the heat pump can continue reducing the workload required of electric baseboard heaters or another backup system.\u003c\/p\u003e\n\u003cp\u003eIts \u003cstrong\u003emaximum COP published at -30 °C is 1.47\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis means that under this test condition, the heat pump still transfers more heat than electric resistance heating can produce using the same amount of electricity, even though its advantage is much smaller than at milder temperatures.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-8 °C\u003c\/strong\u003e, its indicated COP of \u003cstrong\u003e2.12\u003c\/strong\u003e is significantly more favorable.\u003c\/p\u003e\n\u003cp\u003eThis distinction makes a major difference to the annual bill: most heating hours during a winter in \u003cstrong\u003eMontreal, Laval, or Longueuil\u003c\/strong\u003e do not occur at -30 °C.\u003c\/p\u003e\n\u003ch3\u003e38,000 BTU at -8 °C and an indicated LogisVert incentive of $4,560\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates a heating capacity of \u003cstrong\u003e38,000 BTU\/h at -8 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eHydro-Québec currently provides, when all program conditions are met, assistance of \u003cstrong\u003e$120 per 1,000 BTU\/h at -8 °C\u003c\/strong\u003e for a \u003cstrong\u003ecold-climate ENERGY STAR\u003c\/strong\u003e-certified heat pump. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe calculation is therefore:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e38 × $120 = $4,560\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is the amount of \u003cstrong\u003e4 560 $\u003c\/strong\u003e indicated on the AirGreen product sheet.\u003c\/p\u003e\n\u003cp\u003eHowever, this financial assistance should never be considered automatic simply because a model carries ENERGY STAR certification. The installed combination, the date of the work, and compliance with all program requirements must be confirmed at the time of application.\u003c\/p\u003e\n\u003ch3\u003e23 SEER2 and EER2 13: suitable ratings for an efficient multizone system\u003c\/h3\u003e\n\u003cp\u003eThe technical table provided by Senville indicates a \u003cstrong\u003eSEER2 of 23\u003c\/strong\u003e and an \u003cstrong\u003eEER2 of 13\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a 36,000 BTU multizone system, this efficiency level is particularly appealing because three spaces can be controlled without having to install three separate outdoor units.\u003c\/p\u003e\n\u003cp\u003eHowever, actual consumption will depend on several factors:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003esetpoint temperature;\u003c\/li\u003e\n\u003cli\u003ebuilding insulation;\u003c\/li\u003e\n\u003cli\u003esolar exposure;\u003c\/li\u003e\n\u003cli\u003eair infiltration;\u003c\/li\u003e\n\u003cli\u003enumber of active zones;\u003c\/li\u003e\n\u003cli\u003esizing of the indoor units;\u003c\/li\u003e\n\u003cli\u003efrequency of door opening;\u003c\/li\u003e\n\u003cli\u003eoutdoor temperature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe therefore advise against calculating annual savings based solely on SEER2.\u003c\/p\u003e\n\u003ch3\u003eA heating range of up to 44,000 BTU\u003c\/h3\u003e\n\u003cp\u003eThe nominal heating capacity is \u003cstrong\u003e36,000 BTU\u003c\/strong\u003e, but the system can modulate up to approximately \u003cstrong\u003e44,000 BTU\/h\u003c\/strong\u003e under certain conditions. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis reserve can be useful when high demand temporarily occurs in several zones.\u003c\/p\u003e\n\u003cp\u003eConversely, capacity can drop to approximately \u003cstrong\u003e10,000 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis range allows the compressor to avoid operating continuously at maximum output on a mild day.\u003c\/p\u003e\n\u003ch2\u003eAirGreen installation of a SENVILLE 3-zone system: the details that truly change the outcome\u003c\/h2\u003e\n\u003ch3\u003eThe first task is to choose the three right zones\u003c\/h3\u003e\n\u003cp\u003eWith three indoor units, it would be easy to think that all you need to do is select three rooms.\u003c\/p\u003e\n\u003cp\u003eInstead, we analyze the property's thermal zones.\u003c\/p\u003e\n\u003cp\u003eAn open area containing the kitchen and living room can constitute a single zone even if it contains several rooms. Conversely, two bedrooms located on opposite sides of a long corridor may have very different thermal behavior.\u003c\/p\u003e\n\u003cp\u003eWe specifically check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe location of the stairs;\u003c\/li\u003e\n\u003cli\u003ethe orientation of the windows;\u003c\/li\u003e\n\u003cli\u003ethe ceiling height;\u003c\/li\u003e\n\u003cli\u003ethe insulation;\u003c\/li\u003e\n\u003cli\u003ethe area that is actually open;\u003c\/li\u003e\n\u003cli\u003ethe doors that are usually closed;\u003c\/li\u003e\n\u003cli\u003ethe pipe route;\u003c\/li\u003e\n\u003cli\u003ethe possible drainage location;\u003c\/li\u003e\n\u003cli\u003ethe comfort desired in each area.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eA typical configuration we encounter in Greater Montreal\u003c\/h3\u003e\n\u003cp\u003eFor a family home with a finished basement, a logical distribution might be:\u003c\/p\u003e\n\u003ch4\u003eMain zone: 18,000 BTU\u003c\/h4\u003e\n\u003cp\u003eLarge open area combining the kitchen, dining room, and living room.\u003c\/p\u003e\n\u003ch4\u003eSecondary zone: 9,000 BTU\u003c\/h4\u003e\n\u003cp\u003eFloor containing bedrooms or an office.\u003c\/p\u003e\n\u003ch4\u003eSecondary zone: 9,000 BTU\u003c\/h4\u003e\n\u003cp\u003eBasement or family room.\u003c\/p\u003e\n\u003cp\u003eThis is only a design example. Another house might require 12,000 + 12,000 + 12,000 BTU or a different combination.\u003c\/p\u003e\n\u003cp\u003eWhat matters is the \u003cstrong\u003eheating load of each zone\u003c\/strong\u003e, not achieving a perfectly symmetrical distribution.\u003c\/p\u003e\n\u003ch3\u003eThe attached brochure should not be used to automatically select the three indoor units\u003c\/h3\u003e\n\u003cp\u003eThe brochure provided illustrates a version with \u003cstrong\u003etwo 18,000 BTU units\u003c\/strong\u003e, because it is a dual-zone commercial page based on the same SENA-36HF-MOA. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a \u003cstrong\u003e3-zone\u003c\/strong\u003e installation, Senville officially confirms that a three-zone configuration includes three indoor units and three 16 ft line sets when this option is ordered. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore verify the compatibility of the exact combination before ordering the equipment.\u003c\/p\u003e\n\u003ch3\u003eR-454B and precharge capable of covering up to 125 ft\u003c\/h3\u003e\n\u003cp\u003eThe system uses \u003cstrong\u003eR-454B\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe accompanying documentation states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003erefrigerant charge: \u003cstrong\u003e134.04 oz\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003estated precharge: \u003cstrong\u003e125 ft\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eminimum outdoor temperature in heating mode: \u003cstrong\u003e-30 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOn a three-zone installation, this available length becomes particularly relevant because the lines from all three units must reach the same outdoor unit.\u003c\/p\u003e\n\u003cp\u003eA two-story house can easily require:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e20 ft for the first head;\u003c\/li\u003e\n\u003cli\u003e35 ft for the second;\u003c\/li\u003e\n\u003cli\u003e45 ft for the third.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe plan the routes before deciding where to place the compressor. An outdoor location chosen solely for its appearance may require several additional dozen feet of unnecessary piping.\u003c\/p\u003e\n\u003ch3\u003e1\/4–1\/2 piping: the diameter must be validated for each zone\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen data sheet specifies \u003cstrong\u003e1\/4 in – 1\/2 in\u003c\/strong\u003e piping.\u003c\/p\u003e\n\u003cp\u003eHowever, for a multi-zone system, we always confirm the diameters based on the capacity and model of each indoor unit. A 9,000 BTU head and a higher-capacity unit may not use exactly the same connections.\u003c\/p\u003e\n\u003cp\u003eThis is another reason to order the lines after validating the complete combination.\u003c\/p\u003e\n\u003ch3\u003eAn outdoor unit weighing more than 200 lb\u003c\/h3\u003e\n\u003cp\u003eThe SENA-36HF-MOA measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e38.58 × 16.34 × 38.39 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs \u003cstrong\u003e211.86 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis weight affects the choice of bracket.\u003c\/p\u003e\n\u003cp\u003eFor a heat pump of this size, we want a stable installation that can withstand vibrations, snow, and defrost cycles.\u003c\/p\u003e\n\u003cp\u003eA small, lightweight bracket used for a 9,000 BTU heat pump is not automatically suitable for an outdoor unit weighing more than 200 lb.\u003c\/p\u003e\n\u003ch3\u003e3,038 CFM: this is the outdoor airflow\u003c\/h3\u003e\n\u003cp\u003eThe technical data sheet indicates approximately \u003cstrong\u003e3,037.2 CFM\u003c\/strong\u003e and an outdoor sound level of \u003cstrong\u003e65 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt is important to clarify that this figure corresponds to the \u003cstrong\u003emaximum airflow of the outdoor unit\u003c\/strong\u003e, not the combined airflow of the indoor heads.\u003c\/p\u003e\n\u003cp\u003eAn outdoor airflow of more than 3,000 CFM requires adequate clearances.\u003c\/p\u003e\n\u003cp\u003eWe therefore avoid enclosing the unit in a space that is too narrow, beneath a low structure, or against several walls that could encourage recirculation of the discharged air.\u003c\/p\u003e\n\u003ch3\u003e65 dB(A): the outdoor location deserves careful consideration\u003c\/h3\u003e\n\u003cp\u003eAt the advertised \u003cstrong\u003e65 dB(A)\u003c\/strong\u003e, the outdoor unit is not something we want to place thoughtlessly directly beneath a bedroom window.\u003c\/p\u003e\n\u003cp\u003eIn dense areas of \u003cstrong\u003eMontreal, Laval, and Longueuil\u003c\/strong\u003e, we also consider proximity to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe neighboring property;\u003c\/li\u003e\n\u003cli\u003ea patio;\u003c\/li\u003e\n\u003cli\u003ea balcony;\u003c\/li\u003e\n\u003cli\u003ebedrooms;\u003c\/li\u003e\n\u003cli\u003ea narrow passage between two buildings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWalls can reflect noise and make an installation more audible than a figure measured under standardized conditions might suggest.\u003c\/p\u003e\n\u003ch3\u003eA -30 °C heat pump must be installed to operate in snow\u003c\/h3\u003e\n\u003cp\u003eBuying a heat pump capable of heating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e makes little sense if the outdoor unit ends up partially buried after a storm.\u003c\/p\u003e\n\u003cp\u003eWe therefore allow sufficient clearance to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eprotect the heat exchanger from snow accumulation;\u003c\/li\u003e\n\u003cli\u003eallow for defrosting;\u003c\/li\u003e\n\u003cli\u003eprevent ice from blocking the bottom of the unit;\u003c\/li\u003e\n\u003cli\u003efacilitate future maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDefrosting produces water, and that water quickly freezes on an outdoor surface in January. The space beneath and around the compressor must accommodate this accumulation without compromising operation.\u003c\/p\u003e\n\u003ch3\u003eMCA 37 A, MOP 40 A, and 208\/230 V power supply\u003c\/h3\u003e\n\u003cp\u003eThe documentation specifies a \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e power supply, with a voltage range of 187 to 253 V.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eMCA is 37 A\u003c\/strong\u003e, and the indicated maximum protection is \u003cstrong\u003e40 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese values should be used for electrical planning for the outdoor unit.\u003c\/p\u003e\n\u003cp\u003eWe never size a circuit based solely on the advertised 36,000 BTUs.\u003c\/p\u003e\n\u003ch3\u003eWiFi, Alexa, and three zones: a much more useful feature than with a single head\u003c\/h3\u003e\n\u003cp\u003eSenville highlights app-based control as well as \u003cstrong\u003eAlexa\u003c\/strong\u003e integration for this series. The manufacturer also confirms remote scheduling features on its official three-zone configuration. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWith three zones, this feature truly shows its value.\u003c\/p\u003e\n\u003cp\u003eRather than searching for three different remote controls, the owner can adjust several zones directly from their phone.\u003c\/p\u003e\n\u003cp\u003eFor a secondary residence, it is also possible to adjust the settings before arrival.\u003c\/p\u003e\n\u003ch3\u003eSelf-diagnostics and leak detection\u003c\/h3\u003e\n\u003cp\u003eThe Senville documentation mentions a monitoring system capable of reporting certain problems, including refrigerant-related anomalies. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese functions facilitate diagnosis, but they do not replace an inspection when a zone stops heating properly.\u003c\/p\u003e\n\u003cp\u003eAn apparent problem with just one head may stem from several factors:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eclogged filter;\u003c\/li\u003e\n\u003cli\u003edirty indoor fan;\u003c\/li\u003e\n\u003cli\u003esensor;\u003c\/li\u003e\n\u003cli\u003edrainage;\u003c\/li\u003e\n\u003cli\u003ecommunication;\u003c\/li\u003e\n\u003cli\u003erefrigerant;\u003c\/li\u003e\n\u003cli\u003eincorrect configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA multi-zone system must therefore be diagnosed as a whole.\u003c\/p\u003e\n\u003ch3\u003eMaintenance is tripled indoors\u003c\/h3\u003e\n\u003cp\u003eA three-zone heat pump has three indoor units.\u003c\/p\u003e\n\u003cp\u003eThis also means:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethree sets of filters;\u003c\/li\u003e\n\u003cli\u003ethree heat exchangers;\u003c\/li\u003e\n\u003cli\u003ethree fans;\u003c\/li\u003e\n\u003cli\u003ethree condensate drains;\u003c\/li\u003e\n\u003cli\u003ethree points to check during maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA head installed in an open kitchen can become dirty much faster than a bedroom head. Therefore, the three units do not always need to have exactly the same level of dirt.\u003c\/p\u003e\n\u003cp\u003eWe recommend checking each filter regularly rather than treating the system as a single appliance.\u003c\/p\u003e\n\u003ch3\u003eBeware of oversizing small rooms\u003c\/h3\u003e\n\u003cp\u003eA common mistake with multi-zone systems is thinking that the more BTUs a head has, the better it will perform.\u003c\/p\u003e\n\u003cp\u003eIn a small bedroom, an oversized unit can reach its setpoint very quickly and run for less time at low speed.\u003c\/p\u003e\n\u003cp\u003eThe goal is therefore to select the appropriate capacity for each zone, even if the outdoor unit could accept a larger total combination.\u003c\/p\u003e\n\u003ch3\u003eWarranty: information to confirm before purchase\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates a manufacturer’s warranty \u003cstrong\u003e10-10-0\u003c\/strong\u003e, namely ten years on the compressor, ten years on parts, and no manufacturer labor coverage, with the possibility of an additional warranty.\u003c\/p\u003e\n\u003cp\u003eThe Senville documentation provided indicates \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e The official tri-zone page currently published by Senville also presents this coverage of 10 years on the compressor and 5 years on parts. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore recommend confirming the \u003cstrong\u003ewarranty conditions applicable in Quebec for the purchased combination, as well as the registration requirements\u003c\/strong\u003e, at the time of ordering.\u003c\/p\u003e\n\u003ch3\u003eWhich properties do we primarily recommend this 3-zone SENVILLE for?\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE 36,000 BTU is particularly suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea \u003cstrong\u003etwo-story house with a basement\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ethree physically distant areas;\u003c\/li\u003e\n\u003cli\u003ea large open-concept area combined with enclosed rooms;\u003c\/li\u003e\n\u003cli\u003ea condo or dwelling with several distinct thermal zones;\u003c\/li\u003e\n\u003cli\u003ea property where the goal is to limit the number of outdoor units;\u003c\/li\u003e\n\u003cli\u003ea project seeking a \u003cstrong\u003ecold-climate ENERGY STAR heat pump\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea homeowner who wants to continue using their heat pump down to \u003cstrong\u003e-30°C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ean installation where each zone must be able to have its own setpoint.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is less logical when a single large open area needs to be treated. In that case, a properly sized single-zone heat pump may be simpler and more economical.\u003c\/p\u003e\n\u003ch3\u003eWhy AirGreen sizing matters more for a multizone system\u003c\/h3\u003e\n\u003cp\u003eA three-zone system involves far more variables than a single-zone unit.\u003c\/p\u003e\n\u003cp\u003eWe need to match:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ethe outdoor unit capacity\u003c\/strong\u003e,\u003cbr\u003e\u003cstrong\u003ethe three heating loads\u003c\/strong\u003e,\u003cbr\u003e\u003cstrong\u003ethe indoor unit models\u003c\/strong\u003e,\u003cbr\u003e\u003cstrong\u003ethe refrigerant line lengths\u003c\/strong\u003e,\u003cbr\u003e\u003cstrong\u003ethe electrical requirements\u003c\/strong\u003e,\u003cbr\u003e\u003cstrong\u003ethe drains\u003c\/strong\u003e,\u003cbr\u003e\u003cstrong\u003ethe locations\u003c\/strong\u003e,\u003cbr\u003e\u003cstrong\u003ethe AHRI certification\u003c\/strong\u003e,\u003cbr\u003e\u003cstrong\u003ethe applicable rebate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThat is why we pay particular attention to the design before the \u003cstrong\u003eHVAC installation\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, our goal is not simply to install three heads on three available walls. We strive to create three zones that truly correspond to how the property is occupied.\u003c\/p\u003e\n\u003ch3\u003eSENVILLE 3-zone heat pump installation in Montreal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e36,000 BTU SENVILLE SENA-36HF-MOA R454B\u003c\/strong\u003e combines a wide modulation range, cold-climate certification, operation down to -30°C, a \u003cstrong\u003eSEER2 of 23\u003c\/strong\u003e, substantial low-temperature heating capacity, and the ability to distribute comfort across three areas.\u003c\/p\u003e\n\u003cp\u003eHowever, its main advantage does not lie in a single statistic.\u003c\/p\u003e\n\u003cp\u003eIt offers the possibility of cooling and heating \u003cstrong\u003ethree different zones with a single outdoor unit\u003c\/strong\u003e, provided that each zone is properly sized.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen for a quote and an assessment of your 3-zone SENVILLE heat pump project in Montreal, Laval, Longueuil, the North Shore, or the South Shore. We can verify the combination of the three indoor units, the AHRI certification, low-temperature capacity, electrical installation, refrigerant line routing, and the applicable LogisVert rebate before the work begins.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"12 + 12 + 12","offer_id":56201197846820,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true},{"title":"12 + 12 + 18","offer_id":56201197879588,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true},{"title":"9 + 12 + 18","offer_id":56201197912356,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true},{"title":"9 + 9 + 18","offer_id":56201197945124,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_3_ZONES_SENVILLE_R454B_36000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789057766"},{"product_id":"thermopompe-3-zones-senville-r454b-48000-btu","title":"SENVILLE R454B 3-Zone Heat Pump | 48000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA high-capacity multi-zone solution for three distinct areas of a home or business\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE R454B 48,000 BTU 3-zone heat pump\u003c\/strong\u003e, built around the \u003cstrong\u003eSENA-48HF-MOA\u003c\/strong\u003e outdoor unit, is intended for properties where a single wall-mounted unit cannot properly distribute heating and cooling. It can serve several independent areas from a single outdoor unit while giving each zone its own controls and indoor unit.\u003c\/p\u003e\n\u003cp\u003eThis is a particularly relevant configuration for \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore and the South Shore\u003c\/strong\u003e, where we regularly encounter multi-story homes, duplexes, additions, open spaces combined with enclosed bedrooms, and small commercial buildings for which adding a central ducted system would be difficult or costly.\u003c\/p\u003e\n\u003cp\u003eThe system's mechanical foundation is the \u003cstrong\u003eSENA-48HF-MOA\u003c\/strong\u003e, a multi-zone ductless heat pump capable of supporting \u003cstrong\u003e2 to 6 zones\u003c\/strong\u003e, depending on the configuration. The attached brochure commercially presents a two-zone package of 24,000 + 24,000 BTU, but the outdoor unit's technical specifications confirm that the SENA-48HF-MOA platform can serve between two and six indoor units. A \u003cstrong\u003ethree-zone\u003c\/strong\u003e configuration is therefore one of this platform's possibilities. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor this AirGreen configuration, the main specifications are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENA-48HF-MOA\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAdvertised cooling capacity: 48,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735320\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR reference: 3630067\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 23.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 12.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2: 11.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCold-climate certification: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating down to -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 37 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 40 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum outdoor airflow: approximately 4,503 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound level: 65 dB\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor dimensions: 37.48 × 16.34 × 52.48 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSpecified piping: 3\/8 in – 5\/8 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAutomatic vertical and horizontal louvers\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAdditional warranty available\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProvincial rebate indicated: $5,400\u003c\/strong\u003e, subject to the criteria applicable to the project.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eA true multi-zone platform, not three independent heat pumps\u003c\/h3\u003e\n\u003cp\u003eThe principle is simple to understand, but it completely changes how the project is sized.\u003c\/p\u003e\n\u003cp\u003eWith three independent heat pumps, each indoor unit has its own outdoor compressor. With a \u003cstrong\u003e3-zone heat pump\u003c\/strong\u003e, the three indoor units are connected to a \u003cstrong\u003esingle outdoor compressor\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis can represent a significant advantage when you want to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003elimit the number of units visible outside;\u003c\/li\u003e\n\u003cli\u003eheat three floors;\u003c\/li\u003e\n\u003cli\u003eserve a ground floor, a basement, and an upper floor;\u003c\/li\u003e\n\u003cli\u003edistribute cooling between an open space and two enclosed areas;\u003c\/li\u003e\n\u003cli\u003ereduce the mechanical footprint around the property;\u003c\/li\u003e\n\u003cli\u003emaintain individual temperature control in each zone.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe downside of this architecture is that the three indoor units \u003cstrong\u003eshare the available capacity\u003c\/strong\u003e of the SENA-48HF-MOA.\u003c\/p\u003e\n\u003cp\u003eSizing must therefore be done as a whole.\u003c\/p\u003e\n\u003ch3\u003eThe actual capacity of the SENA-48HF-MOA far exceeds a simple “48,000 BTU” designation\u003c\/h3\u003e\n\u003cp\u003eThe Senville technical sheet associated with the outdoor unit indicates a cooling capacity of \u003cstrong\u003e47,000 BTU\/h\u003c\/strong\u003e, with a modulating range of \u003cstrong\u003e12,000 to 57,000 BTU\/h\u003c\/strong\u003e. In heating mode, it indicates \u003cstrong\u003e49,000 BTU\/h\u003c\/strong\u003e, with a range that can vary between \u003cstrong\u003e13,000 and 57,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese data show why inverter technology is essential in a multi-zone system.\u003c\/p\u003e\n\u003cp\u003eThe system does not have to operate constantly at maximum capacity. When all three zones require little energy, the compressor can reduce its output. When several zones simultaneously require heating or cooling, it can increase its capacity within the limits of its operating range.\u003c\/p\u003e\n\u003cp\u003eFor comfort, this notably helps to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ereduce significant temperature fluctuations;\u003c\/li\u003e\n\u003cli\u003elimit unnecessary starts and stops;\u003c\/li\u003e\n\u003cli\u003eadapt output to the building’s actual load;\u003c\/li\u003e\n\u003cli\u003ebetter distribute energy when all zones are not operating at the same intensity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThree zones do not necessarily mean three identical units\u003c\/h3\u003e\n\u003cp\u003eThis is one of the mistakes we want to avoid at \u003cstrong\u003eAirGreen\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhen a homeowner wants a \u003cstrong\u003e48,000 BTU three-zone heat pump\u003c\/strong\u003e, it may be tempting to simply divide 48,000 by three and conclude that approximately three 16,000 BTU indoor units are needed.\u003c\/p\u003e\n\u003cp\u003eThis reasoning is too simplistic.\u003c\/p\u003e\n\u003cp\u003eLet’s consider a very common scenario on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe ground floor includes an open kitchen, dining room, and living room;\u003c\/li\u003e\n\u003cli\u003ethe upper floor contains several bedrooms;\u003c\/li\u003e\n\u003cli\u003ethe basement is cooler, less exposed to sunlight, and partially underground.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe three zones do not have the same needs.\u003c\/p\u003e\n\u003cp\u003eThe ground floor may have a significant cooling load because of the windows and kitchen. The upper floor may be the hottest area in summer because of the attic. The basement may require much less cooling but more heating during certain periods.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore analyze \u003cstrong\u003ethe load of each zone individually\u003c\/strong\u003e before selecting the compatible indoor units.\u003c\/p\u003e\n\u003ch3\u003eThe brochure illustrates a two-zone system, but the outdoor unit supports more\u003c\/h3\u003e\n\u003cp\u003eAn important detail in the accompanying documentation needs to be clarified.\u003c\/p\u003e\n\u003cp\u003eThe commercial page shown in the brochure presents a \u003cstrong\u003eSENA\/48HF\/D\u003c\/strong\u003e configuration with two indoor units of \u003cstrong\u003e24,000 BTU each\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis does not mean that the SENA-48HF-MOA is limited to two zones.\u003c\/p\u003e\n\u003cp\u003eIn the specifications table, the manufacturer explicitly indicates \u003cstrong\u003e2 to 6 zones\u003c\/strong\u003e for this outdoor unit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor an AirGreen page dedicated to the \u003cstrong\u003ethree-zone configuration\u003c\/strong\u003e, the key point is therefore the outdoor platform and the final match selected with the appropriate indoor units.\u003c\/p\u003e\n\u003cp\u003eWe always validate the exact match before installation, particularly when the project must correspond to an AHRI number or meet the conditions of a rebate program.\u003c\/p\u003e\n\u003ch3\u003e23 SEER2: high seasonal cooling efficiency\u003c\/h3\u003e\n\u003cp\u003eThe system has a \u003cstrong\u003e23 SEER2\u003c\/strong\u003e rating. Senville's documentation also confirms an \u003cstrong\u003eEER2 of 12\u003c\/strong\u003e, an \u003cstrong\u003eHSPF2 Region 4 of 11\u003c\/strong\u003e, and an \u003cstrong\u003eHSPF2 Region 5 of 9\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a multi-zone heat pump of this capacity, these values are interesting, particularly when the system replaces several aging air conditioners.\u003c\/p\u003e\n\u003cp\u003eHowever, a high rating on paper does not automatically guarantee low consumption.\u003c\/p\u003e\n\u003cp\u003eActual results also depend on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe requested temperature in each zone;\u003c\/li\u003e\n\u003cli\u003ethe length and quality of the refrigerant lines;\u003c\/li\u003e\n\u003cli\u003ethe frequency of use of the three indoor units;\u003c\/li\u003e\n\u003cli\u003ethe building's insulation;\u003c\/li\u003e\n\u003cli\u003ethe location of the wall-mounted indoor units;\u003c\/li\u003e\n\u003cli\u003ethe cleanliness of the filters and coils;\u003c\/li\u003e\n\u003cli\u003ethe damper settings;\u003c\/li\u003e\n\u003cli\u003ethe distribution of capacity among the zones.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThat is why a properly planned \u003cstrong\u003eHVAC installation\u003c\/strong\u003e remains just as important as the SEER2 rating.\u003c\/p\u003e\n\u003ch3\u003eThe HSPF2 of 11.0 is of particular interest to homeowners who rely heavily on electricity for heating.\u003c\/h3\u003e\n\u003cp\u003eFor Quebec, winter performance deserves as much attention as SEER2.\u003c\/p\u003e\n\u003cp\u003eAn \u003cstrong\u003eHSPF2 of 11\u003c\/strong\u003e indicates a good level of seasonal efficiency under the corresponding test conditions. The Senville specifications also associate a nominal COP of \u003cstrong\u003e3.7 W\/W\u003c\/strong\u003e with the system. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis data does not mean that the COP will remain at 3.7 at -20 °C or -30 °C.\u003c\/p\u003e\n\u003cp\u003eThe performance of a heat pump generally decreases as the outdoor temperature drops. This behavior is normal and must be factored into the heating system design.\u003c\/p\u003e\n\u003ch3\u003e45,000 BTU at -8 °C and 47,000 BTU at -15 °C\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen data provided for this configuration indicate:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAt -8 °C:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ecapacity: \u003cstrong\u003e45,000 BTU\/h\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCOP: \u003cstrong\u003e2,6\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAt -15 °C:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ecapacity: \u003cstrong\u003e47,000 BTU\/h\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese figures are particularly interesting for a \u003cstrong\u003emulti-zone heat pump in Montreal\u003c\/strong\u003e, as they concern temperatures that we regularly experience during the winter.\u003c\/p\u003e\n\u003cp\u003eUnder these conditions, the system retains a high capacity, helping cover a significant portion of the heating needs of a properly sized property.\u003c\/p\u003e\n\u003cp\u003eHowever, this capacity must always be compared with the building’s \u003cstrong\u003eactual heat losses\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA home with heat losses of 55,000 BTU\/h at -15 °C is not equivalent to a home that loses 35,000.\u003c\/p\u003e\n\u003ch3\u003eAt -30 °C, the system continues to provide heat, but at reduced capacity\u003c\/h3\u003e\n\u003cp\u003eThe SENA-48HF-MOA is designed to operate in heating mode down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, and Senville documentation confirms a minimum outdoor temperature of \u003cstrong\u003e-22 °F \/ -30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAirGreen data indicate at this temperature:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003ecapacity of approximately 24,600 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP of approximately 1.27\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is an important example of the difference between \u003cstrong\u003eminimum operating temperature\u003c\/strong\u003e and \u003cstrong\u003eavailable capacity\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eEven if the unit continues operating at -30 °C, it does not necessarily provide its rated 48,000 BTU.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner in \u003cstrong\u003eLaval, Terrebonne, Blainville, Longueuil, Boucherville, or Montreal\u003c\/strong\u003e, this distinction may determine whether supplemental heating will be required on the coldest days.\u003c\/p\u003e\n\u003ch3\u003eA cold-climate-certified heat pump\u003c\/h3\u003e\n\u003cp\u003eThe configuration is listed as \u003cstrong\u003eCOLD CLIMATE: Yes\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSenville documentation also describes the system as a cold-climate heat pump capable of heating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis feature is particularly relevant in Quebec.\u003c\/p\u003e\n\u003cp\u003eWe still encounter installations where an older system practically stops contributing to heating as soon as the outdoor temperature drops sharply. With a modern cold-climate heat pump, the goal is to extend the period during which the compressor genuinely contributes to heating the home.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR and the system’s exact reference\u003c\/h3\u003e\n\u003cp\u003eThe system is listed as \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e, with reference \u003cstrong\u003e3630067\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSenville documentation also confirms this platform’s ENERGY STAR certification. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a project with financial assistance, this detail must be verified at the same time as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe AHRI number;\u003c\/li\u003e\n\u003cli\u003ethe exact combination of indoor units;\u003c\/li\u003e\n\u003cli\u003ethe installation address;\u003c\/li\u003e\n\u003cli\u003ethe program criteria;\u003c\/li\u003e\n\u003cli\u003ethe installation date;\u003c\/li\u003e\n\u003cli\u003ethe required documents.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAt AirGreen, we do not consider a rebate automatically guaranteed simply because an outdoor unit carries a certification.\u003c\/p\u003e\n\u003ch3\u003eA listed provincial rebate of $5,400\u003c\/h3\u003e\n\u003cp\u003eFor this AirGreen configuration, the \u003cstrong\u003elisted provincial rebate is $5,400\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOn a three-zone system, this amount can significantly change the project's net cost.\u003c\/p\u003e\n\u003cp\u003eHowever, eligibility must be confirmed before finalizing the purchase decision. Programs may depend on the exact combination of equipment and several other technical or administrative criteria.\u003c\/p\u003e\n\u003cp\u003eThis is particularly important with multi-zone systems, where two installations using the same outdoor unit may not necessarily have the same indoor-unit pairing or the same certification.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi included: each zone becomes easier to manage\u003c\/h3\u003e\n\u003cp\u003eThe SENA-48HF is equipped for \u003cstrong\u003eWi-Fi control\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSenville documentation indicates that the system can be controlled remotely through an app to change settings and create schedules. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWith a three-zone installation, this feature becomes even more useful.\u003c\/p\u003e\n\u003cp\u003eA homeowner might, for example:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003elower the basement temperature when no one is using it;\u003c\/li\u003e\n\u003cli\u003ekeep the bedrooms cooler at night;\u003c\/li\u003e\n\u003cli\u003eadjust the main living area before returning home;\u003c\/li\u003e\n\u003cli\u003echange the setpoints without going to each unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis flexibility makes it possible to truly take advantage of zoning.\u003c\/p\u003e\n\u003ch3\u003eAn important limitation of multi-zone systems: the modes must remain compatible\u003c\/h3\u003e\n\u003cp\u003eThe indoor units connected to the same multi-zone outdoor unit do not operate like three completely independent systems.\u003c\/p\u003e\n\u003cp\u003eIn practice, the zones generally need to operate in compatible modes. The system should therefore not be planned with the expectation that one unit will heat a room substantially while another simultaneously provides cooling.\u003c\/p\u003e\n\u003cp\u003eIn a typical home, this behavior rarely causes problems.\u003c\/p\u003e\n\u003cp\u003eBut it can become important in certain properties:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003elarge south-facing windows;\u003c\/li\u003e\n\u003cli\u003ea very hot solarium;\u003c\/li\u003e\n\u003cli\u003ea server room;\u003c\/li\u003e\n\u003cli\u003ea commercial space with high internal loads;\u003c\/li\u003e\n\u003cli\u003ea cold basement while one floor receives a lot of sunlight.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe check this type of situation before recommending a multi-zone configuration.\u003c\/p\u003e\n\u003ch2\u003eAirGreen installation: the success of a 3-zone heat pump depends primarily on properly sizing and routing the three branches\u003c\/h2\u003e\n\u003ch3\u003eThree indoor units mean three refrigerant line sets that must be planned correctly\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates \u003cstrong\u003e3\/8 in – 5\/8 in\u003c\/strong\u003e piping for this platform.\u003c\/p\u003e\n\u003cp\u003eOn a three-zone system, pipe design becomes more complex than with a single-zone heat pump.\u003c\/p\u003e\n\u003cp\u003eEach indoor unit requires its own line set.\u003c\/p\u003e\n\u003cp\u003eWe must plan for:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe piping route;\u003c\/li\u003e\n\u003cli\u003ethe location of the penetrations;\u003c\/li\u003e\n\u003cli\u003ethe lengths;\u003c\/li\u003e\n\u003cli\u003ethe height difference;\u003c\/li\u003e\n\u003cli\u003edrainage for each indoor unit;\u003c\/li\u003e\n\u003cli\u003eaccess to the connections;\u003c\/li\u003e\n\u003cli\u003ethe exterior finish;\u003c\/li\u003e\n\u003cli\u003ethe possibility of future servicing.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eIn a three-story house in \u003cstrong\u003eMontreal\u003c\/strong\u003e, the branch serving the top floor may require a much longer route than the one serving the ground floor.\u003c\/p\u003e\n\u003cp\u003eIt is preferable to settle these details before the project rather than improvise on the day of installation.\u003c\/p\u003e\n\u003ch3\u003eThe system is precharged with R-454B for a significant piping length\u003c\/h3\u003e\n\u003cp\u003eSenville documentation indicates \u003cstrong\u003eR-454B\u003c\/strong\u003e, a stated charge of \u003cstrong\u003e151.68 oz\u003c\/strong\u003e, and a precharge covering up to \u003cstrong\u003e150 feet of piping\u003c\/strong\u003e under the conditions specified by the manufacturer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis precharge capacity is particularly relevant for a multi-zone platform where several branches can quickly add up to a significant total length.\u003c\/p\u003e\n\u003cp\u003eHowever, this does not mean that all 150-foot configurations are automatically acceptable.\u003c\/p\u003e\n\u003cp\u003eThe individual lengths, height, and connection requirements must always comply with the applicable installation manual for the selected combination.\u003c\/p\u003e\n\u003ch3\u003eR-454B requires appropriate installation practices\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eR-454B\u003c\/strong\u003e is the refrigerant used by this generation of SENVILLE systems.\u003c\/p\u003e\n\u003cp\u003eFor AirGreen, this means that commissioning must follow the procedures specific to the equipment and refrigerant used.\u003c\/p\u003e\n\u003cp\u003eA proper refrigeration installation includes, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eproperly executed connections;\u003c\/li\u003e\n\u003cli\u003ea leak test;\u003c\/li\u003e\n\u003cli\u003ean appropriate vacuum;\u003c\/li\u003e\n\u003cli\u003everification of the lengths;\u003c\/li\u003e\n\u003cli\u003eproper commissioning;\u003c\/li\u003e\n\u003cli\u003eoperating measurements after startup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWith a multi-zone system, a problem on one branch may manifest differently from another, making installation accuracy even more important.\u003c\/p\u003e\n\u003ch3\u003e4,503 CFM outdoors: the outdoor unit needs space\u003c\/h3\u003e\n\u003cp\u003eThe SENA-48HF-MOA moves up to approximately \u003cstrong\u003e4,502.8 CFM\u003c\/strong\u003e of air outdoors.\u003c\/p\u003e\n\u003cp\u003eIts stated sound level is \u003cstrong\u003e65 dB\u003c\/strong\u003e, its dimensions are \u003cstrong\u003e37.48 × 16.34 × 52.48 in.\u003c\/strong\u003e, and its outdoor weight is approximately \u003cstrong\u003e246.47 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe are therefore dealing with a substantial outdoor unit.\u003c\/p\u003e\n\u003cp\u003eIts installation requires a sufficiently sturdy base and a location that allows adequate airflow.\u003c\/p\u003e\n\u003cp\u003eWe specifically avoid:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ecorners that are too confined;\u003c\/li\u003e\n\u003cli\u003elocations directly beneath a gutter downspout;\u003c\/li\u003e\n\u003cli\u003eareas where snow accumulates heavily;\u003c\/li\u003e\n\u003cli\u003espaces without service access;\u003c\/li\u003e\n\u003cli\u003elocations too close to a bedroom window;\u003c\/li\u003e\n\u003cli\u003esurfaces where defrost water could create a problem.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e246 lb: the outdoor support must not be improvised\u003c\/h3\u003e\n\u003cp\u003eThe stated weight of nearly \u003cstrong\u003e246.5 lb\u003c\/strong\u003e should be taken seriously. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA unit of this size must be installed on an appropriate structure.\u003c\/p\u003e\n\u003cp\u003eDepending on the property and site conditions, we may favor installation on a bracket or a suitable base, with enough height to limit problems related to snow and defrosting.\u003c\/p\u003e\n\u003cp\u003eA unit placed too close to the ground can become difficult to keep clear during a Quebec winter.\u003c\/p\u003e\n\u003ch3\u003eMCA 37 A and MOP 40 A: the electrical system must be checked before ordering\u003c\/h3\u003e\n\u003cp\u003eThe technical specifications indicate a \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e power supply, a voltage range of \u003cstrong\u003e187 to 253 V\u003c\/strong\u003e, an \u003cstrong\u003eMCA of 37 A\u003c\/strong\u003e, and a maximum protection of \u003cstrong\u003e40 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a home with an electrical panel that is already heavily loaded, we therefore need to check the available capacity.\u003c\/p\u003e\n\u003cp\u003eWe regularly encounter properties in Montreal where several electrical devices have been added over the years: water heater, charging station, stove, dryer, electric heating, spa.\u003c\/p\u003e\n\u003cp\u003eAdding a high-capacity heat pump without considering the overall electrical load would be poor practice.\u003c\/p\u003e\n\u003ch3\u003eThe location of the three indoor heads is critical\u003c\/h3\u003e\n\u003cp\u003eA high-capacity wall-mounted unit installed in the wrong location will not distribute air properly simply because it has a high BTU capacity.\u003c\/p\u003e\n\u003cp\u003eFor each zone, we consider:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe shape of the room;\u003c\/li\u003e\n\u003cli\u003ethe ceiling height;\u003c\/li\u003e\n\u003cli\u003eopenings to other areas;\u003c\/li\u003e\n\u003cli\u003ethe doors;\u003c\/li\u003e\n\u003cli\u003ethe location of the windows;\u003c\/li\u003e\n\u003cli\u003ethe direction of the sun;\u003c\/li\u003e\n\u003cli\u003ethe occupants’ location;\u003c\/li\u003e\n\u003cli\u003ethe possible drain route;\u003c\/li\u003e\n\u003cli\u003eaccess to the piping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn an open area, a well-placed unit can serve several adjacent areas. In an area consisting of several closed bedrooms, a single wall-mounted unit in a corridor may be less effective.\u003c\/p\u003e\n\u003ch3\u003eAutomatic louvers: useful for distributing air, but not for correcting a poor location\u003c\/h3\u003e\n\u003cp\u003eAirGreen data indicates \u003cstrong\u003eautomatic vertical and horizontal louvers\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis function helps distribute air throughout the room and reduces the need to manually set a single airflow direction.\u003c\/p\u003e\n\u003cp\u003eBut motorized louvers never replace proper location selection.\u003c\/p\u003e\n\u003cp\u003eA head installed directly in front of a staircase can send a large portion of its air out of the zone. A unit placed too close to a ceiling, cabinet, or obstruction may also lose distribution efficiency.\u003c\/p\u003e\n\u003ch3\u003eThree condensate drains: an often-underestimated part of the project\u003c\/h3\u003e\n\u003cp\u003eA three-zone configuration also means \u003cstrong\u003ethree indoor units producing condensation in cooling mode\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eEach drain must be properly designed.\u003c\/p\u003e\n\u003cp\u003eWhen we can use gravity, we generally favor a steady slope toward the outside.\u003c\/p\u003e\n\u003cp\u003eWhen this is not possible, a condensate pump may become necessary.\u003c\/p\u003e\n\u003cp\u003ePoor drainage can cause:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eleaks;\u003c\/li\u003e\n\u003cli\u003emarks on the walls;\u003c\/li\u003e\n\u003cli\u003epump noises;\u003c\/li\u003e\n\u003cli\u003eodor problems;\u003c\/li\u003e\n\u003cli\u003esafety shutdowns;\u003c\/li\u003e\n\u003cli\u003eavoidable service calls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a multi-zone project, drain quality deserves as much attention as refrigerant lines.\u003c\/p\u003e\n\u003ch3\u003eDiagnostics and leak detection\u003c\/h3\u003e\n\u003cp\u003eSenville indicates the presence of an \u003cstrong\u003eautomatic diagnostic and leak detection system\u003c\/strong\u003e, designed to report certain issues and facilitate maintenance. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt is a useful feature, particularly on a system with multiple zones.\u003c\/p\u003e\n\u003cp\u003eHowever, it does not replace a technical inspection.\u003c\/p\u003e\n\u003cp\u003eA code or alert helps guide the diagnosis, but pressures, temperatures, electrical signals, and actual installation conditions must still be measured when the system shows an issue.\u003c\/p\u003e\n\u003ch3\u003eWarranty: what we verify before presenting it to the customer\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates a \u003cstrong\u003e10-10-0 manufacturer’s warranty\u003c\/strong\u003e, with the option of adding an additional warranty.\u003c\/p\u003e\n\u003cp\u003eThe attached Senville documentation states \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt also specifies that professional installation is required to preserve the coverage and expected performance. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAs this information must correspond to the product sold and the applicable registration conditions, we recommend always confirming the exact coverage when preparing the quote.\u003c\/p\u003e\n\u003ch3\u003eMaintaining a three-zone heat pump: three indoor units, three filters to monitor\u003c\/h3\u003e\n\u003cp\u003eA multi-zone system does not require complicated maintenance, but you should avoid treating the three heads as if they were a single indoor unit.\u003c\/p\u003e\n\u003cp\u003eEach zone has:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eits filters;\u003c\/li\u003e\n\u003cli\u003eits coil;\u003c\/li\u003e\n\u003cli\u003eits fan;\u003c\/li\u003e\n\u003cli\u003eits drain;\u003c\/li\u003e\n\u003cli\u003eits control;\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf the ground-floor unit operates much more than the other two, it may require more frequent cleaning.\u003c\/p\u003e\n\u003cp\u003eWe particularly recommend:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eclean the filters regularly;\u003c\/li\u003e\n\u003cli\u003echeck the condition of the fans;\u003c\/li\u003e\n\u003cli\u003ekeep the air intakes clear;\u003c\/li\u003e\n\u003cli\u003emonitor the drains;\u003c\/li\u003e\n\u003cli\u003eclean the heat exchangers when necessary;\u003c\/li\u003e\n\u003cli\u003ekeep the outdoor unit clear;\u003c\/li\u003e\n\u003cli\u003eremove accumulations of leaves or snow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho is this three-zone, 48,000 BTU Senville system particularly suitable for?\u003c\/h3\u003e\n\u003cp\u003eThis configuration may be interesting for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea three-level house;\u003c\/li\u003e\n\u003cli\u003ea duplex requiring multiple comfort zones;\u003c\/li\u003e\n\u003cli\u003ea property with an addition;\u003c\/li\u003e\n\u003cli\u003ean open main floor accompanied by two distinct zones;\u003c\/li\u003e\n\u003cli\u003ea small business with three separate spaces;\u003c\/li\u003e\n\u003cli\u003ea home without a duct network;\u003c\/li\u003e\n\u003cli\u003ea project where the number of outdoor units should be limited.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt offers several strong features for the Quebec climate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e23 SEER2\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e11 HSPF2\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eoperation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e45,000 BTU at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e47,000 BTU at -15 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eWi-Fi included\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certification\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ecold-climate\u003c\/strong\u003e status\n\u003c\/li\u003e\n\u003cli\u003eindicated possibility of a rebate \u003cstrong\u003e5 400 $\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen three simple systems may sometimes be preferable\u003c\/h3\u003e\n\u003cp\u003eA single outdoor unit is not always the best solution.\u003c\/p\u003e\n\u003cp\u003eWe might prefer several independent systems if:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe three zones have very different schedules;\u003c\/li\u003e\n\u003cli\u003eheating needs are highly unbalanced;\u003c\/li\u003e\n\u003cli\u003ethe zones are often likely to require opposite modes;\u003c\/li\u003e\n\u003cli\u003ethe refrigerant-line routes become too complex;\u003c\/li\u003e\n\u003cli\u003eheating redundancy is a priority;\u003c\/li\u003e\n\u003cli\u003ethe outdoor space can easily accommodate several condensers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA multi-zone system should be chosen because it suits the building, not simply because it reduces the number of outdoor units.\u003c\/p\u003e\n\u003ch3\u003eWhy AirGreen places so much importance on sizing\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Climatisation \u0026amp; Chauffage\u003c\/strong\u003e, we often see the difference between a properly selected heat pump and an installation chosen solely based on the number of BTUs.\u003c\/p\u003e\n\u003cp\u003eFor a \u003cstrong\u003e48,000 BTU SENVILLE R454B 3-zone system\u003c\/strong\u003e, we check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe capacity required for each of the three zones;\u003c\/li\u003e\n\u003cli\u003eheat losses;\u003c\/li\u003e\n\u003cli\u003esolar gains;\u003c\/li\u003e\n\u003cli\u003eindoor-unit locations;\u003c\/li\u003e\n\u003cli\u003eair circulation;\u003c\/li\u003e\n\u003cli\u003eline routing;\u003c\/li\u003e\n\u003cli\u003edrains;\u003c\/li\u003e\n\u003cli\u003eelectrical supply;\u003c\/li\u003e\n\u003cli\u003eoutdoor unit support;\u003c\/li\u003e\n\u003cli\u003esnow management;\u003c\/li\u003e\n\u003cli\u003eeligibility conditions for rebates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis approach makes it possible to take advantage of the system’s features without creating an oversized, poorly balanced, or difficult-to-maintain installation.\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen quote for your 48,000 BTU SENVILLE 3-Zone system\u003c\/h3\u003e\n\u003cp\u003eAre you considering a \u003cstrong\u003e48,000 BTU SENVILLE R454B 3-zone heat pump\u003c\/strong\u003e for your home, duplex, or business?\u003c\/p\u003e\n\u003cp\u003eContact \u003cstrong\u003eAirGreen\u003c\/strong\u003e for a project assessment. We can analyze the needs of each of the three zones, check the electrical supply, select the appropriate indoor-unit combination, plan the refrigerant-line routes, and confirm the applicable financial incentives.\u003c\/p\u003e\n\u003cp\u003eWe carry out \u003cstrong\u003emulti-zone heat pump installations in Montreal, Laval, Longueuil, the North Shore, the South Shore, and Montérégie\u003c\/strong\u003e, with particular attention to sizing, installation quality, and winter operation.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56120040063268,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_3_ZONES_SENVILLE_R454B_48000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789057776"},{"product_id":"thermopompe-4-zones-senville-r454b-27000-btu","title":"SENVILLE R454B 4-Zone Heat Pump | 27000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eUp to four zones on a single outdoor unit: a highly appealing multi-zone solution when several rooms need to be heated and cooled independently\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eA \u003cstrong\u003e4-zone heat pump\u003c\/strong\u003e is not simply a large wall-mounted heat pump with several heads added to it. Sizing, capacity distribution among the rooms, total refrigerant piping length, and how occupants use each zone become critical.\u003c\/p\u003e\n\u003cp\u003eThe system presented here is based on the \u003cstrong\u003eSENVILLE SENA-28HF-MOA\u003c\/strong\u003e outdoor unit, operating with \u003cstrong\u003eR-454B\u003c\/strong\u003e, with a commercial capacity of approximately \u003cstrong\u003e27,000 to 28,000 BTU\u003c\/strong\u003e depending on the technical source used. Senville documentation confirms that this outdoor unit supports \u003cstrong\u003e2 to 4 zones\u003c\/strong\u003e, making it possible to create a true four-zone configuration with compatible indoor units. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, this type of system is particularly relevant in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e when a property has several bedrooms or distinct spaces that cannot be properly served by a single wall-mounted head.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product page associates this unit with the following specifications:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENA-28HF-MOA\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum configuration: 4 zones\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735314\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDisplayed cooling capacity: 27,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER: 23.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER: 12.5\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF: 10.5\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR®: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCold Climate: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating down to -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWiFi: included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 220 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 30 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 35 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound level: 61 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDisplayed provincial rebate: $3,600\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR ID: 3630061\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe manufacturer documentation provided lists \u003cstrong\u003e28,000 nominal BTU\u003c\/strong\u003e, a \u003cstrong\u003eSEER of 23.8\u003c\/strong\u003e, an \u003cstrong\u003eEER of 12.5\u003c\/strong\u003e, and an \u003cstrong\u003eHSPF4 of 10.5\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e This slight difference between 27,000 and 28,000 BTU, or between SEER 23.0 and 23.8, should simply be attributed to the exact certified combination used on the AirGreen product page.\u003c\/p\u003e\n\u003ch3\u003eThe attached brochure shows two zones, but the SENA-28HF-MOA unit can support four\u003c\/h3\u003e\n\u003cp\u003eThe brochure’s first page commercially presents a \u003cstrong\u003edual-zone\u003c\/strong\u003e configuration, with two indoor units of \u003cstrong\u003e12,000 BTU each\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis could give the impression that the SENA-28HF-MOA is only a 2-zone system. However, the technical table clarifies the point: \u003cstrong\u003eNumber of Zones: 2–4\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor this article about a \u003cstrong\u003eSENVILLE 4-zone heat pump\u003c\/strong\u003e, we are therefore referring to this outdoor unit’s ability to power up to four compatible indoor units.\u003c\/p\u003e\n\u003cp\u003eHowever, the brochure provided does not specify the exact combination of the four heads that will be used on the AirGreen listing. We should therefore not invent four precise indoor capacities. They must be selected according to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe heat load of each room;\u003c\/li\u003e\n\u003cli\u003ethe combinations authorized by Senville;\u003c\/li\u003e\n\u003cli\u003ethe admissible total connected capacity;\u003c\/li\u003e\n\u003cli\u003ethe certification applicable to the complete combination.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe main advantage of a 4-zone system: no longer forcing a single head to condition the entire home\u003c\/h3\u003e\n\u003cp\u003eWe regularly encounter properties where a wall-mounted heat pump is installed in the living room in the hope that it will also cool the bedrooms farther away.\u003c\/p\u003e\n\u003cp\u003eIn an open area, this can sometimes work properly.\u003c\/p\u003e\n\u003cp\u003eIn a home with multiple doors, a hallway, and separate bedrooms, air circulation becomes much more limited.\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003e4-zone\u003c\/strong\u003e configuration, by contrast, allows an indoor unit to be installed in each strategic area. For example:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eone unit for the living room;\u003c\/li\u003e\n\u003cli\u003eone for the primary bedroom;\u003c\/li\u003e\n\u003cli\u003eone for two bedrooms or an upstairs area, depending on the layout;\u003c\/li\u003e\n\u003cli\u003eone for the basement or an office.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEach zone then gets its own temperature control.\u003c\/p\u003e\n\u003cp\u003eFor a home in \u003cstrong\u003eMontreal, Laval, or Longueuil\u003c\/strong\u003e, this approach can be much more comfortable than a single large heat pump installed in a central area.\u003c\/p\u003e\n\u003ch3\u003eFour independent zones do not mean four independent compressors\u003c\/h3\u003e\n\u003cp\u003eThis is one of the most important concepts to understand about a multi-zone heat pump.\u003c\/p\u003e\n\u003cp\u003eEach head can have its own setting, but the four indoor units share \u003cstrong\u003ethe same SENA-28HF-MOA outdoor unit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe brochure lists a rated cooling capacity of approximately \u003cstrong\u003e28,000 BTU\/h\u003c\/strong\u003e, with an operating range of approximately \u003cstrong\u003e9,838 to 30,438 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn heating mode, the rated capacity is also listed at \u003cstrong\u003e28,000 BTU\/h\u003c\/strong\u003e, with a range of approximately \u003cstrong\u003e8,218 to 31,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe compressor therefore does not produce 27,000 or 28,000 BTUs for each of the four heads.\u003c\/p\u003e\n\u003cp\u003eIt distributes its available capacity according to the demands of the different zones.\u003c\/p\u003e\n\u003ch3\u003eWhy sizing each indoor head is crucial\u003c\/h3\u003e\n\u003cp\u003eSuppose a homeowner has four rooms of very different sizes.\u003c\/p\u003e\n\u003cp\u003eInstalling four identical indoor units solely to simplify ordering would rarely be the best strategy.\u003c\/p\u003e\n\u003cp\u003eA 150 sq. ft. bedroom and a 500 sq. ft. open living area do not have the same load.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore want to determine:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ehow many BTUs are actually needed in each zone;\u003c\/li\u003e\n\u003cli\u003ewhether the four units can be combined with the SENA-28HF-MOA;\u003c\/li\u003e\n\u003cli\u003ewhether the total connected capacity remains compliant;\u003c\/li\u003e\n\u003cli\u003ewhether the distribution will remain logical when several zones simultaneously require their full capacity.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis step is particularly important for a multi-zone system because a sizing error in one room can affect overall operation.\u003c\/p\u003e\n\u003ch3\u003eSEER from 23 to 23.8: an appealing efficiency for a multi-zone system\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen data sheet lists a \u003cstrong\u003eSEER of 23.0\u003c\/strong\u003e, while the brochure table gives \u003cstrong\u003e23.8\u003c\/strong\u003e for the SENA-28HF-MOA. The \u003cstrong\u003e12.5\u003c\/strong\u003e EER is consistent across the information provided. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a system that can supply four zones, this efficiency is particularly relevant.\u003c\/p\u003e\n\u003cp\u003eA properly used multi-zone system also makes it possible to concentrate comfort where it is actually needed.\u003c\/p\u003e\n\u003cp\u003eIf occupants mainly use two rooms during the day, it is not essential to maintain exactly the same setpoint in all four zones.\u003c\/p\u003e\n\u003cp\u003eThis approach may be worthwhile in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea large house;\u003c\/li\u003e\n\u003cli\u003ea duplex;\u003c\/li\u003e\n\u003cli\u003ea multi-bedroom condo;\u003c\/li\u003e\n\u003cli\u003ea partially occupied basement;\u003c\/li\u003e\n\u003cli\u003ea home office;\u003c\/li\u003e\n\u003cli\u003ecertain small commercial spaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHeating down to -30 °C: a true cold-climate heat pump\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE is identified as \u003cstrong\u003eCold Climate\u003c\/strong\u003e, and the brochure states that it operates in heating mode down to \u003cstrong\u003e-22 °F, or -30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen data sheet provides much more useful capacities for understanding its winter performance:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e30,000 BTU\/h at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e27,000 BTU\/h at -15 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e14,000 BTU\/h maximum at -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe stated COP is approximately \u003cstrong\u003e2.36 at -8 °C\u003c\/strong\u003e and \u003cstrong\u003e1.26 at -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThese figures clearly show why we never simply say that a heat pump “works at -30 °C.”\u003c\/p\u003e\n\u003cp\u003eIt can continue heating at this temperature, but its maximum capacity then drops to approximately \u003cstrong\u003e14,000 BTU\/h\u003c\/strong\u003e according to AirGreen data.\u003c\/p\u003e\n\u003ch3\u003eAt -15 °C, the capacity remains close to the system’s rated capacity.\u003c\/h3\u003e\n\u003cp\u003eThe figure of \u003cstrong\u003e27,000 BTU\/h at -15 °C\u003c\/strong\u003e is particularly important in the Quebec context.\u003c\/p\u003e\n\u003cp\u003eAt this temperature, the unit may still provide a capacity comparable to its advertised rated output.\u003c\/p\u003e\n\u003cp\u003eFor an installation in \u003cstrong\u003eMontréal, Laval, Longueuil, Boucherville, or the North Shore\u003c\/strong\u003e, this behavior is often more economically relevant than the performance observed during a few extremely cold hours at -30 °C.\u003c\/p\u003e\n\u003cp\u003eWe want to know what proportion of the heating season can be effectively covered by the heat pump before backup systems become necessary.\u003c\/p\u003e\n\u003ch3\u003eA four-zone configuration requires consideration of simultaneous operation in winter\u003c\/h3\u003e\n\u003cp\u003eConsider four zones that all require substantial heating on a January morning.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit has a specified overall capacity. It must therefore distribute that capacity among all the indoor heads calling for heat.\u003c\/p\u003e\n\u003cp\u003eThat is why a homeowner should not simply add the rated capacities listed for the four indoor units and consider that total to be the system's guaranteed output.\u003c\/p\u003e\n\u003cp\u003eThe actual maximum output depends on the outdoor unit, the temperature, and the installed combination.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR and a $3,600 provincial rebate\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR®: yes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCold Climate: yes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR ID: 3630061\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eas well as an \u003cstrong\u003eadvertised provincial rebate of $3,600\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer's brochure also identifies the series as \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e and highlights operation down to -30 °C. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAs always, rebate programs must be confirmed at the time of quotation.\u003c\/p\u003e\n\u003cp\u003eOn a multi-zone system, this verification is particularly important because eligibility may depend not only on the outdoor unit, but also on the \u003cstrong\u003eexact combination of indoor units\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eA 1,300-to-1,500-square-foot recommendation to use with caution\u003c\/h3\u003e\n\u003cp\u003eSenville indicates an approximate range of \u003cstrong\u003e1,300 to 1,500 sq. ft.\u003c\/strong\u003e for the configuration presented in its brochure. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, it should be noted that this commercial page shows a \u003cstrong\u003edual-zone 12,000 + 12,000 BTU\u003c\/strong\u003e configuration.\u003c\/p\u003e\n\u003cp\u003eWe therefore should not automatically take this floor area and present it as an absolute rule for every four-zone configuration.\u003c\/p\u003e\n\u003cp\u003eFour small, well-insulated zones may have a different load from four rooms in an older building with a lot of fenestration.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we use floor area as a starting point, never as the final calculation.\u003c\/p\u003e\n\u003ch2\u003eInstallation details that become critical when a single outdoor unit supplies four zones\u003c\/h2\u003e\n\u003ch3\u003eA precharge that can cover up to 100 feet of piping\u003c\/h3\u003e\n\u003cp\u003eThe SENA-28HF-MOA contains approximately \u003cstrong\u003e120.61 oz of R-454B\u003c\/strong\u003e, and the documentation indicates a refrigerant precharge designed for up to \u003cstrong\u003e100 feet\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville also mentions this 100-foot precharge in its product presentation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn a four-zone system, this detail deserves particular attention because the lengths add up quickly.\u003c\/p\u003e\n\u003cp\u003eIf the outdoor unit is located at ground level and several indoor heads are on different floors or façades, the project's total length can become considerable.\u003c\/p\u003e\n\u003cp\u003eWe must therefore calculate precisely:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe length of each circuit;\u003c\/li\u003e\n\u003cli\u003ethe total length;\u003c\/li\u003e\n\u003cli\u003ethe height differences;\u003c\/li\u003e\n\u003cli\u003ethe fittings;\u003c\/li\u003e\n\u003cli\u003ethe additional charge requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe “1\/4 – 3\/8” data must not be used as a complete piping plan\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate \u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e piping.\u003c\/p\u003e\n\u003cp\u003eOn a 4-zone system, this general information is not enough to determine the diameter of each branch without knowing which indoor units have been selected.\u003c\/p\u003e\n\u003cp\u003eWe always validate the connections port by port according to the actual combination.\u003c\/p\u003e\n\u003cp\u003eThis is particularly important when heads with different capacities are combined on the same outdoor unit.\u003c\/p\u003e\n\u003ch3\u003eEach indoor head produces its own condensate\u003c\/h3\u003e\n\u003cp\u003eFour zones potentially mean \u003cstrong\u003efour separate drains\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn a simple installation, we can often use gravity drainage.\u003c\/p\u003e\n\u003cp\u003eIn a more complex home, some heads may require a much longer route or a specialized solution when a natural slope is impossible.\u003c\/p\u003e\n\u003cp\u003eWe therefore plan the drainage at the same time as the refrigerant lines.\u003c\/p\u003e\n\u003cp\u003eAn installation where the pipes are properly installed but the condensate cannot drain correctly is still a poor installation.\u003c\/p\u003e\n\u003ch3\u003eAutomatic vertical and horizontal louvers\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate \u003cstrong\u003eautomatic vertical and horizontal louvers\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOn a four-indoor-unit system, this helps direct the airflow independently in each space.\u003c\/p\u003e\n\u003cp\u003eHowever, even with motorized louvers, the location of each head remains essential.\u003c\/p\u003e\n\u003cp\u003eWe try to avoid:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ean unit blowing directly onto the bed;\u003c\/li\u003e\n\u003cli\u003ea head hidden behind a beam or partition;\u003c\/li\u003e\n\u003cli\u003ean installation oriented toward a door rather than the room;\u003c\/li\u003e\n\u003cli\u003ean indoor unit installed too close to the ceiling without adequate clearance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBe careful with the figure of 2,130 CFM: it refers to the outdoor airflow\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications mention approximately \u003cstrong\u003e2,130 CFM\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer’s table specifies that this value of \u003cstrong\u003e2,129.41 CFM corresponds to the maximum airflow of the outdoor unit\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is not the combined airflow of the four indoor units.\u003c\/p\u003e\n\u003cp\u003eThis distinction is important to avoid confusion in the product specifications.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit must be able to freely draw in and discharge this volume of air. It therefore must not be installed in an overly enclosed space or behind an excessively restrictive decorative structure.\u003c\/p\u003e\n\u003ch3\u003e61 dB(A) outdoors\u003c\/h3\u003e\n\u003cp\u003eThe stated outdoor sound level is \u003cstrong\u003e61 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a multizone unit of this capacity, the location therefore deserves careful consideration.\u003c\/p\u003e\n\u003cp\u003eWe specifically consider:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ebedroom windows;\u003c\/li\u003e\n\u003cli\u003ethe deck;\u003c\/li\u003e\n\u003cli\u003eneighboring properties;\u003c\/li\u003e\n\u003cli\u003ewalls that may reflect noise;\u003c\/li\u003e\n\u003cli\u003eservice access;\u003c\/li\u003e\n\u003cli\u003eclearances;\u003c\/li\u003e\n\u003cli\u003emunicipal regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe shortest piping route is not always the best choice if the unit ends up directly below a bedroom.\u003c\/p\u003e\n\u003ch3\u003eAn outdoor unit weighing 168 lb\u003c\/h3\u003e\n\u003cp\u003eThe dimensions are:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e37.24 in × 16.14 in × 31.89 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003efor a weight of approximately \u003cstrong\u003e168.43 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA solid installation is therefore essential.\u003c\/p\u003e\n\u003cp\u003eDepending on the property, we can use a suitable base or support, taking snow, access, and long-term stability into account.\u003c\/p\u003e\n\u003ch3\u003e208\/230 V, MCA 30 A, and maximum protection of 35 A\u003c\/h3\u003e\n\u003cp\u003eThe brochure indicates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e208\/230 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003esingle-phase;\u003c\/li\u003e\n\u003cli\u003e60 Hz;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 30 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003emaximum fuse: 35 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003econnection wiring: \u003cstrong\u003e14\/4 AWG\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis information is consistent with the AirGreen specification sheet.\u003c\/p\u003e\n\u003cp\u003eBefore installation, however, we must confirm the panel's actual capacity and the project's specific electrical requirements.\u003c\/p\u003e\n\u003ch3\u003eWiFi included and independent zone control\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates \u003cstrong\u003eWiFi included\u003c\/strong\u003e, and the brochure confirms smart control through Alexa or an app for the system presented. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWith four zones, this feature becomes particularly useful.\u003c\/p\u003e\n\u003cp\u003eFor example, a homeowner can maintain a different temperature in a bedroom than in the living room and reduce operation in an unused office over the weekend.\u003c\/p\u003e\n\u003cp\u003eThe true value of a multi-zone system appears precisely when this independence is used instead of setting all the units to the same temperature year-round.\u003c\/p\u003e\n\u003ch3\u003eAn interesting user review about comfort, but also about connectivity\u003c\/h3\u003e\n\u003cp\u003eThe brochure contains a review from a verified Canadian buyer stating that the system made their home comfortable during the summer. However, they mention not using certain connected features as intended. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis illustrates a practical point: the WiFi must be configured correctly, and the user must understand the necessary accessories and applications.\u003c\/p\u003e\n\u003cp\u003eDuring an AirGreen installation, commissioning should therefore not be limited to checking that the compressor starts.\u003c\/p\u003e\n\u003ch3\u003eWarranty: the AirGreen specification sheet and the brochure do not provide exactly the same coverage\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates a warranty:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years compressor – 10 years parts – 0 years labor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith the possibility of additional warranty coverage.\u003c\/p\u003e\n\u003cp\u003eThe Senville documentation provided, for its part, states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years compressor – 5 years parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical table lists the same coverage: 10 years on the compressor and 5 years on parts. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIf AirGreen benefits from a special program offering 10 years on parts, it is best to confirm this clearly in the quote and on the final specification sheet.\u003c\/p\u003e\n\u003ch3\u003eA Scenario Where Four Zones Make Much More Sense Than One Large Indoor Unit\u003c\/h3\u003e\n\u003cp\u003eConsider a two-storey house with three bedrooms and an open main living area.\u003c\/p\u003e\n\u003cp\u003eWith a single high-capacity unit in the living room, the bedrooms can remain uncomfortable when their doors are closed.\u003c\/p\u003e\n\u003cp\u003eA four-zone system can allow:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eone unit for the main living area;\u003c\/li\u003e\n\u003cli\u003eone unit for the primary bedroom;\u003c\/li\u003e\n\u003cli\u003etwo additional units for bedrooms or separate spaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe outdoor unit remains a single unit, but air distribution becomes much more precise.\u003c\/p\u003e\n\u003cp\u003eThis is exactly the type of project where a \u003cstrong\u003e4-zone heat pump in Montreal, Laval, or Longueuil\u003c\/strong\u003e can offer a tangible advantage.\u003c\/p\u003e\n\u003ch3\u003eWhen Two Independent Heat Pumps May Nonetheless Be Preferable\u003c\/h3\u003e\n\u003cp\u003eA multi-zone system is not automatically better.\u003c\/p\u003e\n\u003cp\u003eTwo separate systems may be appropriate if:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe zones are very far apart;\u003c\/li\u003e\n\u003cli\u003ethe building consists of two separate dwellings;\u003c\/li\u003e\n\u003cli\u003eredundancy is a priority;\u003c\/li\u003e\n\u003cli\u003ethe refrigerant line runs become excessively complex.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWith a multi-zone system, a single outdoor unit serves all the zones. A failure of this unit can therefore affect several rooms at once.\u003c\/p\u003e\n\u003cp\u003eWe always compare this reality with the benefits of a cleaner-looking exterior façade and a single condenser.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose AirGreen for a SENVILLE 4-Zone Installation\u003c\/h3\u003e\n\u003cp\u003eA four-zone installation requires much more planning than a single-zone heat pump.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we check:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe heating load of each of the four zones;\u003c\/li\u003e\n\u003cli\u003ecompatible indoor capacities;\u003c\/li\u003e\n\u003cli\u003ethe certified combination with the \u003cstrong\u003eSENA-28HF-MOA\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ethe length of each line set;\u003c\/li\u003e\n\u003cli\u003ethe total refrigerant charge;\u003c\/li\u003e\n\u003cli\u003edrainage for each indoor unit;\u003c\/li\u003e\n\u003cli\u003ewall penetrations;\u003c\/li\u003e\n\u003cli\u003ethe outdoor location;\u003c\/li\u003e\n\u003cli\u003ethe 208\/230 V power supply;\u003c\/li\u003e\n\u003cli\u003efuture maintenance needs;\u003c\/li\u003e\n\u003cli\u003ethe certification and applicable subsidy.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWe carry out \u003cstrong\u003emulti-zone heat pump projects in Montreal, Laval, Longueuil, on the South Shore, the North Shore, and in Montérégie\u003c\/strong\u003e, with particular attention to airflow and the actual sizing of each room.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA-28HF-MOA R454B\u003c\/strong\u003e offers very appealing features for this type of project: \u003cstrong\u003eup to four zones, ENERGY STAR, Cold Climate, heating down to -30 °C, high seasonal efficiency, WiFi, inverter modulation, and a refrigerant charge suitable for lines up to 100 feet\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen to get a quote for the SENVILLE R454B 27,000 BTU 4-zone heat pump, determine the right capacities for each of your rooms, and confirm the applicable subsidy in Montreal, Laval, Longueuil, on the South Shore or the North Shore.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56120040096036,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_4_ZONES_SENVILLE_R454B_27000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789057786"},{"product_id":"thermopompe-4-zones-senville-r454b-36000-btu","title":"SENVILLE R454B 4-Zone Heat Pump | 36000 BTU","description":"\u003ch2\u003eA 36,000 BTU multi-zone solution for distributing comfort across four rooms without multiplying the number of outdoor units\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE R454B 36,000 BTU 4-Zone Heat Pump\u003c\/strong\u003e addresses a problem we regularly encounter at AirGreen in homes, condos, duplexes, and small buildings in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, and the North Shore\u003c\/strong\u003e: several rooms need independent temperature control, but installing three or four outdoor units on the property would be cumbersome, unattractive, or simply impossible.\u003c\/p\u003e\n\u003cp\u003eThe heart of the system is the \u003cstrong\u003eSENA-36HF-MOA\u003c\/strong\u003e outdoor unit. Its technical specifications indicate that it can supply \u003cstrong\u003etwo to five zones\u003c\/strong\u003e, making it fully compatible with a project involving four indoor units when the selected combination complies with the manufacturer's limits. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis flexibility is particularly valuable in a home with multiple bedrooms, a floor divided into offices, a duplex where certain zones are difficult to balance, or a ground floor and upper floor with very different heating and cooling needs.\u003c\/p\u003e\n\u003cp\u003eInstead of trying to move air from a single wall-mounted head through doors, corridors, and stairways, we can distribute the available capacity directly where it is needed.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen configuration notably features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENA-36HF-MOA\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735317\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated capacity: 36,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 23.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 13.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2: 10.7\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eR-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCold Climate: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eheating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003epower supply \u003cstrong\u003e220 V\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 37 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 40 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eoutdoor sound level: \u003cstrong\u003e65 dB(A)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003emax outdoor airflow: approximately \u003cstrong\u003e3,038 CFM\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003edisplayed provincial rebate: \u003cstrong\u003e4 560 $\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe official brochure confirms that the SENA-36HF-MOA has a capacity of 36,000 BTU, a \u003cstrong\u003eSEER2 of 23\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 13\u003c\/strong\u003e, an \u003cstrong\u003eHSPF2 Region 4 of 10.7\u003c\/strong\u003e, a 208\/230 V power supply, and compatibility with \u003cstrong\u003e2 to 5 zones\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThe brochure shows two zones, but the outdoor unit can support up to five.\u003c\/h3\u003e\n\u003cp\u003eThe first page of the documentation presents a commercial configuration in \u003cstrong\u003edual zone\u003c\/strong\u003e, with two 18,000 BTU indoor units. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis image can be confusing if you look only at the photo.\u003c\/p\u003e\n\u003cp\u003eThe most important information is found in the technical table: the \u003cstrong\u003eSENA-36HF-MOA\u003c\/strong\u003e outdoor model is designed for \u003cstrong\u003e2 to 5 zones\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis means that a four-zone system is entirely possible, but the compatible indoor units must be selected and the combinations approved by Senville must be followed.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we never design a multi-zone system by arbitrarily adding four heads.\u003c\/p\u003e\n\u003cp\u003eWe check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe capacity required by each room;\u003c\/li\u003e\n\u003cli\u003ethe compatible indoor models;\u003c\/li\u003e\n\u003cli\u003ethe sum of the connected rated capacities;\u003c\/li\u003e\n\u003cli\u003ethe manufacturer’s combination limits;\u003c\/li\u003e\n\u003cli\u003epiping lengths;\u003c\/li\u003e\n\u003cli\u003ethe available capacity when multiple zones simultaneously require heating or cooling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e36,000 BTU does not mean 9,000 BTU guaranteed in each of the four rooms\u003c\/h3\u003e\n\u003cp\u003eThis is an essential point to understand before purchasing a \u003cstrong\u003efour-zone heat pump\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe system does not automatically divide 36,000 BTU into four fixed 9,000-BTU portions.\u003c\/p\u003e\n\u003cp\u003eCapacity is dynamically shared among the indoor units according to their demands.\u003c\/p\u003e\n\u003cp\u003eThe brochure states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e36,000 BTU\/h of rated cooling capacity\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ecooling range of \u003cstrong\u003e9,000 to 43,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e36,000 BTU\/h of rated heating capacity\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eheating range of \u003cstrong\u003e10,000 to 44,000 BTU\/h\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis modulation range allows the inverter compressor to adjust its output.\u003c\/p\u003e\n\u003cp\u003eIf only two small bedrooms need cooling, the system can operate at a lower capacity. If several zones require substantial heating at the same time, it increases its output within the available limits.\u003c\/p\u003e\n\u003cp\u003eThis is precisely the behavior that makes a multi-zone platform appealing.\u003c\/p\u003e\n\u003ch3\u003eA concrete example: four rooms that never have exactly the same needs\u003c\/h3\u003e\n\u003cp\u003eLet’s take a typical \u003cstrong\u003eSouth Shore\u003c\/strong\u003e home with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea primary bedroom on the second floor;\u003c\/li\u003e\n\u003cli\u003etwo secondary bedrooms;\u003c\/li\u003e\n\u003cli\u003ean office on the ground floor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe west-facing bedroom can become very hot around 4 p.m. in July, while the north-facing office remains relatively cool.\u003c\/p\u003e\n\u003cp\u003eIn the evening, the situation changes: the office is no longer in use, but the three bedrooms need to be comfortable for the night.\u003c\/p\u003e\n\u003cp\u003eA four-zone system concentrates capacity where it is actually needed rather than sending exactly the same amount of air everywhere.\u003c\/p\u003e\n\u003ch3\u003eWhy four zones can be more effective than one very large head\u003c\/h3\u003e\n\u003cp\u003eA common mistake is to believe that a high-capacity wall-mounted unit installed in a hallway can serve an entire floor.\u003c\/p\u003e\n\u003cp\u003eOn paper, the BTUs may seem sufficient.\u003c\/p\u003e\n\u003cp\u003eIn reality, doors and walls limit air circulation.\u003c\/p\u003e\n\u003cp\u003eA 24,000- or 36,000-BTU head can cool the hallway perfectly while leaving a closed bedroom too warm.\u003c\/p\u003e\n\u003cp\u003eWith four indoor units, the system directly serves the rooms.\u003c\/p\u003e\n\u003cp\u003eThis improves:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003edistribution;\u003c\/li\u003e\n\u003cli\u003etemperature precision;\u003c\/li\u003e\n\u003cli\u003enighttime comfort;\u003c\/li\u003e\n\u003cli\u003eflexibility of use;\u003c\/li\u003e\n\u003cli\u003eroom-by-room control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSEER2 of 23: highly attractive seasonal efficiency for a multi-zone system\u003c\/h3\u003e\n\u003cp\u003eThe brochure indicates a \u003cstrong\u003eSEER2 of 23\u003c\/strong\u003e and an \u003cstrong\u003eEER2 of 13\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a 36,000 BTU multizone heat pump, this efficiency level is particularly noteworthy.\u003c\/p\u003e\n\u003cp\u003eENERGY STAR certification is also indicated in the Senville presentation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA high SEER2 means that, over the entire cooling season, the unit can provide substantial cooling relative to the electrical energy consumed.\u003c\/p\u003e\n\u003cp\u003eHowever, this figure should not be turned into a promise about the electricity bill.\u003c\/p\u003e\n\u003cp\u003eActual consumption depends on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003ewindow orientation;\u003c\/li\u003e\n\u003cli\u003ethe requested temperature;\u003c\/li\u003e\n\u003cli\u003ethe number of active zones;\u003c\/li\u003e\n\u003cli\u003eoccupancy habits;\u003c\/li\u003e\n\u003cli\u003eoutdoor conditions;\u003c\/li\u003e\n\u003cli\u003ethe quality of the installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHSPF2 of 10.7 and operation down to -30 °C\u003c\/h3\u003e\n\u003cp\u003eThe SENA-36HF-MOA belongs to the \u003cstrong\u003eCold Climate\u003c\/strong\u003e system category.\u003c\/p\u003e\n\u003cp\u003eThe brochure states that it provides heating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e and describes this series as optimized for cold climates. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specifications provide particularly interesting data at winter temperatures:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eapproximately \u003cstrong\u003e38,000 BTU\/h at -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eapproximately \u003cstrong\u003e36,000 BTU\/h at -15 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eup to \u003cstrong\u003e22,400 BTU\/h at -30 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe stated COP is approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.12 at -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eapproximately \u003cstrong\u003e1.47 at -30 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis information is more useful than simply stating “operates down to -30 °C.”\u003c\/p\u003e\n\u003cp\u003eAt -30 °C, the system continues to heat, but its available capacity is lower than when the outdoor temperature is higher.\u003c\/p\u003e\n\u003ch3\u003eWhy multizone heating must be calculated room by room\u003c\/h3\u003e\n\u003cp\u003eWith a four-zone system, we do not want to know only whether the outdoor unit can produce 22,400 BTU at -30 °C.\u003c\/p\u003e\n\u003cp\u003eWe need to determine how these BTUs will be distributed.\u003c\/p\u003e\n\u003cp\u003eIf all four rooms require substantial heating at the same time, the total available capacity must be shared.\u003c\/p\u003e\n\u003cp\u003eFor an older home in \u003cstrong\u003eMontreal\u003c\/strong\u003e, with less efficient windows and colder walls, this simultaneity can become important during severe cold.\u003c\/p\u003e\n\u003cp\u003eThat is why we assess the heat loss of each zone before recommending the indoor-unit combination.\u003c\/p\u003e\n\u003ch3\u003eThe major advantage of a four-zone system: individual room control\u003c\/h3\u003e\n\u003cp\u003eIn a family home, not all rooms should necessarily operate at the same temperature.\u003c\/p\u003e\n\u003cp\u003eA child's bedroom can be set differently from the office. A guest room can remain at a more economical setpoint when unused. A sun-exposed space may require more cooling than the others.\u003c\/p\u003e\n\u003cp\u003eWith a \u003cstrong\u003efour-zone SENVILLE heat pump\u003c\/strong\u003e, each indoor unit has its own control.\u003c\/p\u003e\n\u003cp\u003eWi-Fi is included according to the AirGreen specifications, while the documentation describes integration with Alexa and the Senville app for scheduling and remote control. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis function becomes truly useful when several rooms need to be managed separately.\u003c\/p\u003e\n\u003ch3\u003eAn important limitation: the zones share the same general mode\u003c\/h3\u003e\n\u003cp\u003eA conventional residential multi-zone system shares the same outdoor unit.\u003c\/p\u003e\n\u003cp\u003eTherefore, one should not expect one bedroom to be in cooling mode while another simultaneously requests heating.\u003c\/p\u003e\n\u003cp\u003eThe zones may have different temperatures, but they must operate in a compatible mode.\u003c\/p\u003e\n\u003cp\u003eThis reality is important during the shoulder seasons, particularly in spring or fall, when a sunny room may overheat while another remains cool.\u003c\/p\u003e\n\u003ch3\u003eAutomatic louvers and air distribution in each room\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eautomatic vertical\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eautomatic horizontal\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis function improves the distribution of the air stream, but the location of each head remains critical.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we aim in particular to avoid:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea direct stream of air onto a bed;\u003c\/li\u003e\n\u003cli\u003eair blowing directly onto a desk;\u003c\/li\u003e\n\u003cli\u003ea head installed too close to a ceiling;\u003c\/li\u003e\n\u003cli\u003ea position that blocks the air coverage;\u003c\/li\u003e\n\u003cli\u003ean installation that makes maintenance more difficult.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a bedroom, the best position is not always the easiest one for the piping. We therefore need to find a compromise between performance, aesthetics, and route simplicity.\u003c\/p\u003e\n\u003ch2\u003eA four-zone installation is won mainly through planning the lines, drains, and outdoor unit.\u003c\/h2\u003e\n\u003ch3\u003eA precharge of up to 125 feet\u003c\/h3\u003e\n\u003cp\u003eThe documentation indicates that the SENA-36HF-MOA contains approximately \u003cstrong\u003e134.04 oz of R-454B\u003c\/strong\u003e and is precharged for a total length of up to \u003cstrong\u003e125 feet\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a four-zone project, this information is important.\u003c\/p\u003e\n\u003cp\u003eFour heads can quickly generate a significant total piping length.\u003c\/p\u003e\n\u003cp\u003eSuppose:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e20 feet for the first zone;\u003c\/li\u003e\n\u003cli\u003e25 feet for the second;\u003c\/li\u003e\n\u003cli\u003e35 feet for the third;\u003c\/li\u003e\n\u003cli\u003e30 feet for the fourth.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe total already reaches 110 feet.\u003c\/p\u003e\n\u003cp\u003eThat is why we calculate the lengths before installation rather than afterward.\u003c\/p\u003e\n\u003ch3\u003eR-454B: a new standard that requires proper installation\u003c\/h3\u003e\n\u003cp\u003eThe system uses \u003cstrong\u003eR-454B\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis A2L refrigerant requires appropriate practices during HVAC commissioning and servicing.\u003c\/p\u003e\n\u003cp\u003eA professional installation includes, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eproper line preparation;\u003c\/li\u003e\n\u003cli\u003ecompliant connections;\u003c\/li\u003e\n\u003cli\u003eleak tests;\u003c\/li\u003e\n\u003cli\u003evacuuming;\u003c\/li\u003e\n\u003cli\u003ecorrect charge;\u003c\/li\u003e\n\u003cli\u003efinal operation check.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a four-zone system, the number of connections is greater than in a single-zone system, making the quality of the refrigeration work even more important.\u003c\/p\u003e\n\u003ch3\u003e1\/4 in – 1\/2 in piping\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates connection sizes of \u003cstrong\u003e1\/4 in – 1\/2 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe route must be planned to avoid an accumulation of visible line-hide on the façades.\u003c\/p\u003e\n\u003cp\u003eIn an installation in Montréal or Longueuil, we can sometimes group several runs along the same vertical line and then distribute them to the different rooms.\u003c\/p\u003e\n\u003cp\u003eThis method often improves the exterior appearance.\u003c\/p\u003e\n\u003ch3\u003eFour heads also mean four drains\u003c\/h3\u003e\n\u003cp\u003eEach indoor unit produces condensate in cooling mode.\u003c\/p\u003e\n\u003cp\u003eA four-zone system may therefore require up to four separate drainage runs.\u003c\/p\u003e\n\u003cp\u003eIt is a detail that quickly becomes critical.\u003c\/p\u003e\n\u003cp\u003eWe try to prioritize gravity drains when the configuration allows.\u003c\/p\u003e\n\u003cp\u003ePoor planning may require several condensate pumps, which adds:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003enoise;\u003c\/li\u003e\n\u003cli\u003emechanical parts;\u003c\/li\u003e\n\u003cli\u003emaintenance;\u003c\/li\u003e\n\u003cli\u003erisk of blockages.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a bedroom, a pump that starts regularly during the night can be much more disruptive than expected.\u003c\/p\u003e\n\u003ch3\u003eAn outdoor unit weighing more than 200 lb\u003c\/h3\u003e\n\u003cp\u003eThe brochure specifies for the outdoor unit:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003edimensions: \u003cstrong\u003e38.58 × 16.34 × 38.39 in\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eweight: approximately \u003cstrong\u003e211.86 lb\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emaximum outdoor airflow: \u003cstrong\u003e3,037.2 CFM\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eoutdoor sound level: \u003cstrong\u003e65 dB(A)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis is therefore not a small outdoor unit.\u003c\/p\u003e\n\u003cp\u003eIts base or support must be suitable for its weight and Québec's winter conditions.\u003c\/p\u003e\n\u003cp\u003eWe also check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eclearances;\u003c\/li\u003e\n\u003cli\u003esnow accumulation;\u003c\/li\u003e\n\u003cli\u003edefrost water;\u003c\/li\u003e\n\u003cli\u003edistance from windows;\u003c\/li\u003e\n\u003cli\u003eproximity to the neighbor;\u003c\/li\u003e\n\u003cli\u003eaccessibility for servicing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e65 dB(A): location matters\u003c\/h3\u003e\n\u003cp\u003eAn outdoor sound level of \u003cstrong\u003e65 dB(A)\u003c\/strong\u003e deserves particular attention.\u003c\/p\u003e\n\u003cp\u003eOn a property with a large lot, the impact may be limited.\u003c\/p\u003e\n\u003cp\u003eIn a densely populated Montréal neighborhood or in certain areas of \u003cstrong\u003eLongueuil\u003c\/strong\u003e, the distance from windows, patios, and neighbors is often much smaller.\u003c\/p\u003e\n\u003cp\u003eWe therefore try to avoid installing it directly beneath a bedroom window or too close to a patio used in the evening.\u003c\/p\u003e\n\u003ch3\u003eMCA 37 A and MOP 40 A\u003c\/h3\u003e\n\u003cp\u003eThe brochure specifies:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMCA: 37 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003emaximum protection: 40 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003epower supply: \u003cstrong\u003e208\/230 V single-phase\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe electrical circuit must be sized according to the nameplate data and applicable requirements.\u003c\/p\u003e\n\u003cp\u003eIn a home already heavily loaded by baseboard heaters, a water heater, a stove, and an electric vehicle charging station, we check the available capacity before confirming the work.\u003c\/p\u003e\n\u003ch3\u003eDiagnostics and leak detection\u003c\/h3\u003e\n\u003cp\u003eThe documentation also presents \u003cstrong\u003ebuilt-in diagnostic and refrigerant leak detection functions\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn a four-zone system, this function is useful because the refrigeration network has more fittings and components.\u003c\/p\u003e\n\u003cp\u003eHowever, it does not replace a diagnosis by a refrigeration technician.\u003c\/p\u003e\n\u003cp\u003eA drop in performance in a single zone may be related to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea sensor;\u003c\/li\u003e\n\u003cli\u003ea fan motor;\u003c\/li\u003e\n\u003cli\u003ean electronic problem;\u003c\/li\u003e\n\u003cli\u003ea refrigerant charge;\u003c\/li\u003e\n\u003cli\u003ea fitting;\u003c\/li\u003e\n\u003cli\u003ea drain;\u003c\/li\u003e\n\u003cli\u003ea communication error.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe 1,800 sq. ft. area shown in the brochure must be interpreted correctly\u003c\/h3\u003e\n\u003cp\u003eThe brochure indicates that the SENA-36HF\/D configuration can cover up to approximately \u003cstrong\u003e1,800 sq. ft.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis information should not be interpreted as an automatic rule.\u003c\/p\u003e\n\u003cp\u003eA well-insulated 1,800 sq. ft. newer home may have a very different heating load from an old duplex of the same size.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we consider in particular:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003enumber of windows;\u003c\/li\u003e\n\u003cli\u003esolar orientation;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003ewall exposure;\u003c\/li\u003e\n\u003cli\u003econstruction type;\u003c\/li\u003e\n\u003cli\u003enumber of floors;\u003c\/li\u003e\n\u003cli\u003edesired temperature;\u003c\/li\u003e\n\u003cli\u003eoccupancy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRealistic example of a four-zone project\u003c\/h3\u003e\n\u003cp\u003eA common scenario would be a two-story home where the owners want:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eone unit in the primary bedroom;\u003c\/li\u003e\n\u003cli\u003eone unit in a second bedroom;\u003c\/li\u003e\n\u003cli\u003eone unit in the office;\u003c\/li\u003e\n\u003cli\u003eone unit in the large living-dining area.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eIn this case, the living room head may require more capacity than those in the bedrooms.\u003c\/p\u003e\n\u003cp\u003eWe would therefore not necessarily choose four identical units.\u003c\/p\u003e\n\u003cp\u003eThe combination can be adapted to the actual needs of each space, subject to compatibility with the SENA-36HF-MOA.\u003c\/p\u003e\n\u003ch3\u003eProvincial rebate shown: $4,560\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet currently shows a \u003cstrong\u003e$4,560 provincial rebate\u003c\/strong\u003e for this combination.\u003c\/p\u003e\n\u003cp\u003eIt also states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certification;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCold Climate\u003c\/strong\u003e certification;\u003c\/li\u003e\n\u003cli\u003eENERGY STAR number \u003cstrong\u003e3630064\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSenville documentation confirms the series’ ENERGY STAR certification and cold-climate positioning. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAs always, financial assistance must be verified at the time of the project using the exact combination of indoor and outdoor units.\u003c\/p\u003e\n\u003cp\u003eIn a multi-zone system, this detail is particularly important.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a difference to be confirmed\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years compressor – 10 years parts – 0 years labour\u003c\/strong\u003e, with the possibility of an additional warranty.\u003c\/p\u003e\n\u003cp\u003eHowever, the Senville brochure indicates \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical table on page 5 also confirms \u003cstrong\u003e10 years compressor \/ 5 years parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference must therefore be confirmed according to the warranty program applicable to the product sold by AirGreen.\u003c\/p\u003e\n\u003ch3\u003eFour single-zone systems or a four-zone system?\u003c\/h3\u003e\n\u003cp\u003eThis is a comparison we often make.\u003c\/p\u003e\n\u003cp\u003eFour single-zone systems provide four independent outdoor units.\u003c\/p\u003e\n\u003cp\u003eA multi-zone system uses a single outdoor unit.\u003c\/p\u003e\n\u003ch4\u003eAdvantages of the four-zone system\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003efewer outdoor units;\u003c\/li\u003e\n\u003cli\u003ebetter aesthetics;\u003c\/li\u003e\n\u003cli\u003eless space occupied;\u003c\/li\u003e\n\u003cli\u003eonly one outdoor unit to maintain;\u003c\/li\u003e\n\u003cli\u003eindependent control of the four rooms;\u003c\/li\u003e\n\u003cli\u003ea particularly interesting solution for façades where space is limited.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAdvantages of separate single-zone systems\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eeach system is completely independent;\u003c\/li\u003e\n\u003cli\u003ean outdoor-unit failure affects only one zone;\u003c\/li\u003e\n\u003cli\u003esome small single-zone units can offer excellent individual performance;\u003c\/li\u003e\n\u003cli\u003eeach zone has its own dedicated outdoor capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe best choice depends on the building and the owner's priorities.\u003c\/p\u003e\n\u003ch3\u003eThe most common mistake: overloading the indoor capacity because the outdoor unit accepts five zones\u003c\/h3\u003e\n\u003cp\u003eThe fact that the SENA-36HF-MOA can accept \u003cstrong\u003eup to five zones\u003c\/strong\u003e does not mean that any combination of heads can be installed.\u003c\/p\u003e\n\u003cp\u003eThe matching rules must be followed.\u003c\/p\u003e\n\u003cp\u003eFor a four-zone system, we therefore verify the total connected capacity and the manufacturer's limits before finalizing the order.\u003c\/p\u003e\n\u003cp\u003eThis is particularly important for winter heating, when several rooms may require heat simultaneously.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for a multi-zone installation\u003c\/h3\u003e\n\u003cp\u003eA four-zone heat pump requires more coordination than a simple wall-mounted unit.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we plan:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe heating needs of each room;\u003c\/li\u003e\n\u003cli\u003eindoor models;\u003c\/li\u003e\n\u003cli\u003etotal capacity;\u003c\/li\u003e\n\u003cli\u003elow-temperature capacity;\u003c\/li\u003e\n\u003cli\u003epiping lengths;\u003c\/li\u003e\n\u003cli\u003edrains;\u003c\/li\u003e\n\u003cli\u003eexterior aesthetics;\u003c\/li\u003e\n\u003cli\u003eoutdoor-unit support;\u003c\/li\u003e\n\u003cli\u003eelectrical supply;\u003c\/li\u003e\n\u003cli\u003ecommissioning;\u003c\/li\u003e\n\u003cli\u003eeligibility for subsidies;\u003c\/li\u003e\n\u003cli\u003efuture access for maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe carry out these installations in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eOur assessment of the SENVILLE SENA-36HF-MOA\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE 36,000 BTU platform offers a particularly interesting combination for a property requiring several independent zones:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 to 5 compatible zones\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eperfectly suited to a \u003cstrong\u003e4-zone\u003c\/strong\u003e configuration when properly matched;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e36,000 BTU nominal cooling capacity\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e36,000 BTU nominal heating capacity\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emodulation up to \u003cstrong\u003e43,000 BTU in cooling\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emodulation up to \u003cstrong\u003e44,000 BTU in heating\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSEER2 23\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEER2 13\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSPF2-4 10.7\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eoperation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eR-454B;\u003c\/li\u003e\n\u003cli\u003eENERGY STAR;\u003c\/li\u003e\n\u003cli\u003eCold Climate;\u003c\/li\u003e\n\u003cli\u003eWiFi;\u003c\/li\u003e\n\u003cli\u003erefrigerant precharge up to \u003cstrong\u003e125 feet\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emaximum protection of \u003cstrong\u003e40 A\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a home divided into several rooms, it allows the zones to be treated directly rather than trying to force air from a single point.\u003c\/p\u003e\n\u003cp\u003eHowever, the result depends on the quality of the design. A good outdoor unit cannot compensate for improperly sized heads, poorly planned drains, or an incorrect indoor-unit combination.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor a quote on a SENVILLE 4-zone heat pump, contact AirGreen. We can size each room, verify the combination of indoor units, plan the piping, and confirm the financial incentives available before installation in Montreal, Laval, Longueuil, the North Shore, or the South Shore.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"9 + 9 + 9 + 9","offer_id":56201207251236,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true},{"title":"9 + 9 + 9 + 12","offer_id":56201207284004,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true},{"title":"9 + 9 + 9 + 18","offer_id":56201207316772,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true},{"title":"9 + 9 + 12 + 12","offer_id":56201207349540,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_4_ZONES_SENVILLE_R454B_36000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789057798"},{"product_id":"thermopompe-4-zones-senville-r454b-48000-btu","title":"SENVILLE R454B 4-Zone Heat Pump | 48000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eFour separately controlled spaces with a single condenser: a multi-zone solution designed for homes where air distribution matters just as much as BTUs\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE R454B 4-Zone Heat Pump | 48000 BTU\u003c\/strong\u003e addresses a very practical problem we encounter at AirGreen in homes, condos, multiplexes, and small commercial buildings in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, and the North Shore\u003c\/strong\u003e: how can several enclosed rooms be heated and cooled without installing four outdoor units around the building?\u003c\/p\u003e\n\u003cp\u003eWith a Quad-Zone configuration, a single outdoor condenser serves \u003cstrong\u003efour separately controllable indoor units\u003c\/strong\u003e. Senville officially markets its 48,000 BTU platform in a Quad-Zone version under the SENA\/48HF\/Q family. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe heart of the system is the \u003cstrong\u003eSENA-48HF-MOA\u003c\/strong\u003e outdoor unit, operating with \u003cstrong\u003eR454B\u003c\/strong\u003e. This platform is particularly flexible: the accompanying documentation indicates that it can support \u003cstrong\u003e2 to 6 zones\u003c\/strong\u003e, depending on the selected matching system. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the matched system we are discussing here, the reference to retain is \u003cstrong\u003eAHRI 215735320\u003c\/strong\u003e. The certified data associated with this number includes \u003cstrong\u003e23 SEER2\u003c\/strong\u003e, \u003cstrong\u003e12 EER2\u003c\/strong\u003e, \u003cstrong\u003e11 HSPF2\u003c\/strong\u003e, a rated cooling capacity of \u003cstrong\u003e47,000 BTU\/h\u003c\/strong\u003e, and a rated heating capacity of \u003cstrong\u003e49,000 BTU\/h\u003c\/strong\u003e. The unit is also listed as a \u003cstrong\u003ecold-climate\u003c\/strong\u003e heat pump. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt is therefore useful to immediately understand one distinction: \u003cstrong\u003e48,000 BTU is the system’s commercial class\u003c\/strong\u003e, while the certified capacity of the matched system may be slightly different. At AirGreen, we always rely on the exact AHRI number when comparing models or confirming a rebate.\u003c\/p\u003e\n\u003ch3\u003eThe main features of the SENVILLE 4-Zone 48,000 BTU system\u003c\/h3\u003e\n\u003cp\u003eFor this configuration, the key data includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENA-48HF-MOA\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eConfiguration: 4 zones\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735320\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCommercial class: 48,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCertified cooling capacity: 47,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating capacity: 49,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 23.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 12.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2: 11.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCapacity at -8 °C: 45,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCapacity at -15 °C: 47,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum rated capacity at -30 °C: approximately 24,600 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP at -8 °C: approximately 2.6\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum COP at -30 °C: approximately 1.27\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMinimum operating temperature in heating mode: -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR Cold Climate: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR ID: 3630067\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi: included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 37 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum protection: 40 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound level: approximately 65 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum outdoor airflow: approximately 4,503 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAirGreen warranty listed: 10-10-0, with additional protection available\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SENA-48HF-MOA brochure confirms \u003cstrong\u003e23 SEER2\u003c\/strong\u003e, a 208\/230 V power supply, and a voltage range of 187 to 253 V. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eA modulation range extending well beyond a simple 48,000 BTU figure\u003c\/h3\u003e\n\u003cp\u003eInverter technology is particularly important in a four-zone heat pump.\u003c\/p\u003e\n\u003cp\u003eThe condenser documentation specifies an approximate cooling range of \u003cstrong\u003e12,000 to 57,000 BTU\/h\u003c\/strong\u003e and a heating range of \u003cstrong\u003e13,000 to 57,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis means the system is not destined to operate continuously at its maximum capacity.\u003c\/p\u003e\n\u003cp\u003eImagine a South Shore home equipped with four heads:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eone in the living room;\u003c\/li\u003e\n\u003cli\u003eone in the primary bedroom;\u003c\/li\u003e\n\u003cli\u003eone in an office;\u003c\/li\u003e\n\u003cli\u003eone in a second bedroom.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAt 2 p.m. in summer, the south-facing living room may require substantial cooling, while the bedrooms are already cool. At 11 p.m., the situation may be reversed: the living room barely needs cooling, while the bedrooms are occupied.\u003c\/p\u003e\n\u003cp\u003eThe compressor can adjust its output to meet the overall demand.\u003c\/p\u003e\n\u003cp\u003eThis modulation allows the system to better manage a home whose different rooms never have exactly the same heating load at the same time.\u003c\/p\u003e\n\u003ch3\u003eFour zones do not mean four compressors\u003c\/h3\u003e\n\u003cp\u003eThis is probably the most important point to understand before purchasing a \u003cstrong\u003e4-Zone heat pump\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eEach indoor unit can be controlled separately, but the four heads share:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe same compressor;\u003c\/li\u003e\n\u003cli\u003ethe same outdoor unit;\u003c\/li\u003e\n\u003cli\u003ea shared total capacity;\u003c\/li\u003e\n\u003cli\u003ethe same main operating mode for the refrigeration circuit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOccupants can therefore set different temperatures from one room to another, but they should not think of four completely independent heat pumps.\u003c\/p\u003e\n\u003cp\u003eIf all four zones require substantial heating at the same time, the condenser must distribute its available capacity among them.\u003c\/p\u003e\n\u003cp\u003eThat is why we size \u003cstrong\u003eeach room and the entire building\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eA four-zone 12,000 BTU configuration is possible, but the exact pairing must be confirmed\u003c\/h3\u003e\n\u003cp\u003eSenville commercially offers the 48,000 BTU Quad-Zone version with configurations including \u003cstrong\u003efour 12,000 BTU units\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThat does not necessarily mean that a 12,000 BTU head is needed in every room.\u003c\/p\u003e\n\u003cp\u003eIn a real property, we may have very different needs:\u003c\/p\u003e\n\u003cp\u003eA compact bedroom may require much less capacity than a large living room with extensive glazing, while a sunny attic office may have a higher load than its area would suggest.\u003c\/p\u003e\n\u003cp\u003eThe possible combinations must therefore be validated according to the indoor units compatible with Senville and, above all, according to the \u003cstrong\u003eAHRI pairing\u003c\/strong\u003e that we want to retain.\u003c\/p\u003e\n\u003ch3\u003e23 SEER2 on a system of this capacity: notable efficiency\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003eSEER2 of 23\u003c\/strong\u003e is particularly appealing on a multizone platform capable of serving four rooms.\u003c\/p\u003e\n\u003cp\u003eThe ENERGY STAR database associated with \u003cstrong\u003eSENA-48HF-MOA \/ AHRI 215735320\u003c\/strong\u003e also confirms:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e23 SEER2;\u003c\/li\u003e\n\u003cli\u003e12 EER2;\u003c\/li\u003e\n\u003cli\u003e11 HSPF2;\u003c\/li\u003e\n\u003cli\u003econtinuously variable compressor;\u003c\/li\u003e\n\u003cli\u003eR454B;\u003c\/li\u003e\n\u003cli\u003ecold-climate certification. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis efficiency does not mean that every home will achieve the same annual savings.\u003c\/p\u003e\n\u003cp\u003eActual consumption depends on the quality of the building, the use of the four zones, the setpoint temperature, and the proportion of electric heating that the heat pump actually manages to replace.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore consider SEER2 a \u003cstrong\u003ecomparative indicator\u003c\/strong\u003e, not a promise about an electricity bill.\u003c\/p\u003e\n\u003ch3\u003e45,000 BTU at -8 °C: a much more useful figure than simply “heats down to -30”\u003c\/h3\u003e\n\u003cp\u003eFor a heat pump used in Quebec, we place great importance on the capacity available at low temperatures.\u003c\/p\u003e\n\u003cp\u003eThe listed pairing indicates approximately \u003cstrong\u003e45,000 BTU\/h of heating at -8 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe certification database also reports approximately \u003cstrong\u003e47,000 BTU\/h at -15 °C\u003c\/strong\u003e for this configuration, with a certified COP close to 2 at this operating point. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis capacity matters because -8 °C to -15 °C corresponds to a temperature range in which a heat pump in Quebec can accumulate a great many operating hours over the course of a winter.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner in \u003cstrong\u003eMontreal, Laval, or Longueuil\u003c\/strong\u003e, the potential for savings is therefore not limited to the two or three coldest nights of January. It depends mainly on what the unit can produce throughout the season.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -30 °C: what it really means\u003c\/h3\u003e\n\u003cp\u003eSenville advertises heating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, a figure also listed in the SENA-48HF-MOA brochure. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt this temperature, however, it is necessary to distinguish between \u003cstrong\u003eoperating capacity\u003c\/strong\u003e and \u003cstrong\u003enominal capacity\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAirGreen data associated with the model indicate a maximum capacity of approximately \u003cstrong\u003e24,600 BTU\/h at -30 °C\u003c\/strong\u003e, with a COP of approximately \u003cstrong\u003e1.27\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn other words, the heat pump continues to provide heat when the mercury reaches -30 °C, but it no longer provides the approximately 47,000 to 49,000 BTU available under less severe conditions.\u003c\/p\u003e\n\u003cp\u003eIn a large house requiring 45,000 BTU\/h of heating at -30 °C, a supplemental heat source will therefore remain necessary.\u003c\/p\u003e\n\u003cp\u003eIn a very well-insulated property with much lower heat losses, the heat pump's contribution can remain very significant.\u003c\/p\u003e\n\u003ch3\u003eCOP of 2.6 at -8 °C: why this figure deserves to be understood\u003c\/h3\u003e\n\u003cp\u003eA COP of \u003cstrong\u003e2,6\u003c\/strong\u003e means that under this operating condition, the system provides approximately 2.6 units of heat for one unit of electricity consumed by the heat pump.\u003c\/p\u003e\n\u003cp\u003eBy comparison, electric resistance heating operates essentially at a COP of 1.\u003c\/p\u003e\n\u003cp\u003eThe lower the outdoor temperature drops, the more a heat pump's COP generally tends to decrease.\u003c\/p\u003e\n\u003cp\u003eAt -30 °C, a value of approximately 1.27 means that the energy advantage over electric resistance becomes smaller, but theoretically remains present under the corresponding conditions.\u003c\/p\u003e\n\u003cp\u003eFor us, these figures are primarily used to determine \u003cstrong\u003ewhen to run the heat pump and when to plan for supplemental heat\u003c\/strong\u003e, rather than to assess the unit based on a single figure.\u003c\/p\u003e\n\u003ch3\u003eR454B and the new installation requirements\u003c\/h3\u003e\n\u003cp\u003eThis generation uses the \u003cstrong\u003eR454B\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe condenser brochure indicates a charge of approximately \u003cstrong\u003e151.68 oz\u003c\/strong\u003e and a precharge that may correspond to approximately \u003cstrong\u003e150 ft of piping\u003c\/strong\u003e for the published configuration. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn a Quad-Zone system, this precharge capacity makes perfect sense: we can have four refrigerant lines running to four different parts of the building.\u003c\/p\u003e\n\u003cp\u003eHowever, “precharged for 150 ft” does not mean that four lines can be routed freely without taking the manufacturer's rules into account.\u003c\/p\u003e\n\u003cp\u003eWe must comply with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe maximum length of each branch;\u003c\/li\u003e\n\u003cli\u003ethe combined length;\u003c\/li\u003e\n\u003cli\u003ethe height differences;\u003c\/li\u003e\n\u003cli\u003ethe piping dimensions;\u003c\/li\u003e\n\u003cli\u003ethe additional charge required when the precharge limits are exceeded;\u003c\/li\u003e\n\u003cli\u003ethe permitted combinations of indoor units.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe R454B is also an A2L-class refrigerant. Senville documentation highlights \u003cstrong\u003ediagnostic and leak detection\u003c\/strong\u003e features on this generation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis makes the quality of the connections, leak testing, and commissioning even more important.\u003c\/p\u003e\n\u003ch3\u003eA platform capable of supporting 2 to 6 zones: useful, but the correct matching must be maintained\u003c\/h3\u003e\n\u003cp\u003eThe technical documentation explicitly states that the \u003cstrong\u003eSENA-48HF-MOA can support 2 to 6 zones\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt is a very flexible platform.\u003c\/p\u003e\n\u003cp\u003eSenville also markets the same condenser in different versions: Dual-Zone, Quad-Zone, and Five-Zone. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, this does not mean that we can turn a Quad-Zone configuration into a Five-Zone or Six-Zone system without verifying the consequences.\u003c\/p\u003e\n\u003cp\u003eAdding an indoor unit can change:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003econnected capacity;\u003c\/li\u003e\n\u003cli\u003ecertified efficiency;\u003c\/li\u003e\n\u003cli\u003eAHRI;\u003c\/li\u003e\n\u003cli\u003ethe size of each indoor unit;\u003c\/li\u003e\n\u003cli\u003eeligibility for financial assistance;\u003c\/li\u003e\n\u003cli\u003ethe system's behavior when multiple zones demand capacity simultaneously.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor the customer, the outdoor unit number is therefore only part of the information. \u003cstrong\u003eThe complete matching is the real HVAC product.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eA Quad-Zone installation requires four times as much interior planning, not simply four times as many pipes\u003c\/h2\u003e\n\u003ch3\u003eAn AirGreen project in Verdun that perfectly illustrates the challenge\u003c\/h3\u003e\n\u003cp\u003eWe recently completed a \u003cstrong\u003eQuad-Zone installation in Verdun, Montreal\u003c\/strong\u003e at AirGreen, with four wall-mounted units connected to a single condenser.\u003c\/p\u003e\n\u003cp\u003eThe work took place in a unit undergoing renovations, where we had to work around tight spaces, windows close to the installation areas, and the need to keep the line route clean and discreet. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is precisely the type of building where a four-zone solution is worthwhile.\u003c\/p\u003e\n\u003cp\u003eA single large unit in a hallway could have provided plenty of BTUs without actually treating four enclosed rooms properly.\u003c\/p\u003e\n\u003cp\u003eWith four indoor units, each space receives its heating and cooling directly.\u003c\/p\u003e\n\u003ch3\u003eIn Ville-Marie and Old Montreal, the number of zones is not the only challenge\u003c\/h3\u003e\n\u003cp\u003eOur Quad-Zone installations in \u003cstrong\u003eVille-Marie\u003c\/strong\u003e and the \u003cstrong\u003eOld Port of Montreal\u003c\/strong\u003e have also exposed us to the typical realities of urban buildings: uneven walls, limited space, architectural constraints, and the need to conceal the lines without compromising access to the equipment. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a newer home on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, we can sometimes run each line almost directly outside.\u003c\/p\u003e\n\u003cp\u003eIn a Montreal condo, the first indoor unit may be only a few feet from the condenser, while the fourth requires a completely different route.\u003c\/p\u003e\n\u003cp\u003eThat is why two projects using exactly the same Senville heat pump may require very different amounts of work.\u003c\/p\u003e\n\u003ch3\u003eThe four drains deserve as much attention as the four refrigerant lines\u003c\/h3\u003e\n\u003cp\u003eEach indoor unit produces condensation in cooling mode.\u003c\/p\u003e\n\u003cp\u003eThis potentially means \u003cstrong\u003efour drains to manage\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWe prefer to use gravity when the building configuration allows it. When this is not possible, a condensate pump may become necessary.\u003c\/p\u003e\n\u003cp\u003eAn incorrect slope on a single drain can cause:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewater noises;\u003c\/li\u003e\n\u003cli\u003ea leak;\u003c\/li\u003e\n\u003cli\u003ewater accumulating in the drain pan;\u003c\/li\u003e\n\u003cli\u003ewater infiltration into the wall;\u003c\/li\u003e\n\u003cli\u003ean avoidable service call.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a four-zone project, repeating the components also multiplies the possibilities for error.\u003c\/p\u003e\n\u003ch3\u003eThe piping must match the installed head\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates \u003cstrong\u003e3\/8 in – 5\/8 in\u003c\/strong\u003e in the general data associated with the configuration, but with a multi-zone heat pump it is essential to verify the required sizes \u003cstrong\u003efor each indoor unit actually selected\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA 9,000- or 12,000-BTU head does not necessarily have the same connections as a 24,000-BTU unit.\u003c\/p\u003e\n\u003cp\u003eTherefore, we never select the piping solely based on the condenser’s total capacity.\u003c\/p\u003e\n\u003cp\u003eThe final pairing manual remains the reference.\u003c\/p\u003e\n\u003ch3\u003eA condenser weighing nearly 250 lb: the support must be taken seriously\u003c\/h3\u003e\n\u003cp\u003eThe brochure specifies the following for the SENA-48HF-MOA:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e37.48 × 16.34 × 52.48 in\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eweight of approximately \u003cstrong\u003e246.47 lb\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eoutdoor sound level of approximately \u003cstrong\u003e65 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is not a small outdoor wall-mounted unit.\u003c\/p\u003e\n\u003cp\u003eIn Greater Montreal, we must anticipate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003esnow;\u003c\/li\u003e\n\u003cli\u003eice;\u003c\/li\u003e\n\u003cli\u003edefrosting;\u003c\/li\u003e\n\u003cli\u003eweight;\u003c\/li\u003e\n\u003cli\u003evibrations;\u003c\/li\u003e\n\u003cli\u003esupport stability;\u003c\/li\u003e\n\u003cli\u003efuture access to the service panels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf the condenser is placed directly beneath a roof downspout, ice-related problems can become significant.\u003c\/p\u003e\n\u003cp\u003eIf it is installed too low, snow may reduce airflow.\u003c\/p\u003e\n\u003cp\u003eIf it is mounted on a lightweight structure, vibrations may be transmitted to the building.\u003c\/p\u003e\n\u003ch3\u003e65 dB(A): the outdoor location must also respect the neighbors\u003c\/h3\u003e\n\u003cp\u003eAn outdoor sound level of \u003cstrong\u003e65 dB(A)\u003c\/strong\u003e warrants serious consideration, particularly in densely populated areas of Montreal.\u003c\/p\u003e\n\u003cp\u003eInstalling the unit directly beneath the homeowner’s bedroom window or near the neighbor’s is not our first choice when a realistic alternative exists.\u003c\/p\u003e\n\u003cp\u003eWe also consider how sound can be reflected between two closely spaced walls.\u003c\/p\u003e\n\u003cp\u003eOn the \u003cstrong\u003eNorth Shore or South Shore\u003c\/strong\u003e, a larger property sometimes provides more flexibility. In a Montreal plex, every available foot can matter.\u003c\/p\u003e\n\u003ch3\u003e37 A MCA, 40 A maximum protection\u003c\/h3\u003e\n\u003cp\u003eThe brochure confirms a \u003cstrong\u003eminimum circuit ampacity of 37 A\u003c\/strong\u003e and a maximum protection of \u003cstrong\u003e40 A\u003c\/strong\u003e for the outdoor unit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe system operates at \u003cstrong\u003e208\/230 V single-phase\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eBefore installation, we therefore check the panel’s capacity, the available space, and the electrical routing.\u003c\/p\u003e\n\u003cp\u003eThis check must be carried out before the installation date, particularly in older plexes in \u003cstrong\u003eMontreal and Longueuil\u003c\/strong\u003e, where an electrical panel may already be heavily loaded.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi and four-zone management\u003c\/h3\u003e\n\u003cp\u003eThe system offers Wi-Fi control, and Senville markets its Quad-Zone range as a solution that allows individual control of different rooms. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor four zones, this becomes genuinely practical.\u003c\/p\u003e\n\u003cp\u003eThe owner can, for example, maintain:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe living room at a more comfortable temperature during the evening;\u003c\/li\u003e\n\u003cli\u003ethe office slightly cooler when it is unoccupied;\u003c\/li\u003e\n\u003cli\u003ethe bedrooms at a different temperature during the night;\u003c\/li\u003e\n\u003cli\u003ea guest room with a lower setpoint when it is not in use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA multi-zone installation is therefore not simply a way to distribute BTUs. It also makes it possible to adapt comfort to the building’s actual use.\u003c\/p\u003e\n\u003ch3\u003eLogisVert: why the displayed amount is $5,400\u003c\/h3\u003e\n\u003cp\u003eThe capacity used in the AirGreen specifications is \u003cstrong\u003e45,000 BTU\/h at -8°C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eHydro-Québec’s LogisVert program currently offers \u003cstrong\u003e$120 per 1,000 BTU\/h at -8°C\u003c\/strong\u003e for an eligible heat pump, subject to the applicable conditions being met. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe calculation is therefore:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e45 × $120 = $5,400\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is exactly the amount of \u003cstrong\u003e5 400 $\u003c\/strong\u003e displayed for this heat pump.\u003c\/p\u003e\n\u003cp\u003eThe AHRI number \u003cstrong\u003e215735320\u003c\/strong\u003e is associated with an ENERGY STAR cold-climate heat pump, with a certified capacity of 45,000 BTU\/h at around -8°C. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, you must always check the program \u003cstrong\u003eon the installation date\u003c\/strong\u003e. Hydro-Québec specifies that eligible models and amounts may change. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eA multi-unit residential building incentive can be even more substantial\u003c\/h3\u003e\n\u003cp\u003eFor certain \u003cstrong\u003eeligible multi-unit residential buildings\u003c\/strong\u003e, Hydro-Québec has offered, since June 15, 2026, an incentive increase bringing the rebate to \u003cstrong\u003e$220 per 1,000 BTU\/h at -8°C\u003c\/strong\u003e when all program requirements are met. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWith 45,000 BTU\/h at -8°C, the theoretical calculation is:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e45 × 220 $ = 9,900 $\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis amount is by no means automatic. The incentive is intended for multi-unit residential buildings meeting specific criteria and applies to ENERGY STAR – Cold Climate wall-mounted heat pumps installed in eligible dwelling units.\u003c\/p\u003e\n\u003cp\u003eFor this type of project, we verify the address, building type, and exact configuration before presenting an amount as applicable.\u003c\/p\u003e\n\u003ch3\u003eWarranty: there is a difference between the manufacturer’s brochure and the coverage displayed by AirGreen\u003c\/h3\u003e\n\u003cp\u003eThe attached brochure mentions a manufacturer’s warranty of \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specification sheet associated with the configuration, for its part, presents \u003cstrong\u003e10-10-0\u003c\/strong\u003e, with the possibility of an additional warranty.\u003c\/p\u003e\n\u003cp\u003eWe therefore have the \u003cstrong\u003efinal quote\u003c\/strong\u003e specify the coverage that actually applies to the project: the manufacturer program, registration requirements, and any additional protection offered.\u003c\/p\u003e\n\u003cp\u003eThe document provided to the customer is what should be relied upon, not an old brochure or a website specification consulted for another SENA-48HF-MOA combination.\u003c\/p\u003e\n\u003ch3\u003eThe mistakes we seek to avoid on a four-zone system\u003c\/h3\u003e\n\u003ch4\u003eInstalling four heads with the same capacity without calculating the requirements of all four rooms\u003c\/h4\u003e\n\u003cp\u003eA 150-square-foot bedroom and a 700-square-foot living room should not automatically receive the same capacity simply to simplify ordering.\u003c\/p\u003e\n\u003ch4\u003eInstalling a head in a hallway to serve two bedrooms\u003c\/h4\u003e\n\u003cp\u003eA heat pump heats and cools a space much more effectively when it blows directly into that space.\u003c\/p\u003e\n\u003ch4\u003eChoosing locations solely to reduce pipe length\u003c\/h4\u003e\n\u003cp\u003eA shorter refrigerant line is of little value if the unit blows air in the wrong direction all year round.\u003c\/p\u003e\n\u003ch4\u003eFailing to plan for future maintenance\u003c\/h4\u003e\n\u003cp\u003eWith four indoor units, we want to maintain access to the filters, drain, evaporator, and components.\u003c\/p\u003e\n\u003ch4\u003eForgetting that the four zones share a common capacity\u003c\/h4\u003e\n\u003cp\u003eIf all four rooms have a very high simultaneous load, condenser sizing becomes critical.\u003c\/p\u003e\n\u003ch4\u003eConfusing the Dual-Zone and Quad-Zone specifications\u003c\/h4\u003e\n\u003cp\u003eThe attached brochure shows a \u003cstrong\u003eDual-Zone 24,000 + 24,000 BTU\u003c\/strong\u003e version, but the SENA-48HF-MOA is also officially used in a Quad-Zone configuration. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe exact AHRI number tells us which performance specifications we need to use.\u003c\/p\u003e\n\u003ch3\u003eFor what type of property is this SENVILLE Quad-Zone most relevant?\u003c\/h3\u003e\n\u003cp\u003eWe mainly consider it for buildings that have \u003cstrong\u003efour zones genuinely requiring their own air distribution\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis may include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003efour bedrooms;\u003c\/li\u003e\n\u003cli\u003ethree bedrooms and a living room;\u003c\/li\u003e\n\u003cli\u003etwo bedrooms, an office, and a living area;\u003c\/li\u003e\n\u003cli\u003etwo levels with several enclosed rooms;\u003c\/li\u003e\n\u003cli\u003ea large condo;\u003c\/li\u003e\n\u003cli\u003ea multiplex;\u003c\/li\u003e\n\u003cli\u003ea small business with several offices;\u003c\/li\u003e\n\u003cli\u003ea property where the number of outdoor units must be limited.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a very large, entirely open area, four heads would often be unnecessary.\u003c\/p\u003e\n\u003cp\u003eIn a residence with six or seven small enclosed rooms, we might instead consider another configuration.\u003c\/p\u003e\n\u003cp\u003eThe number of zones should follow the building’s layout, not just the desired total capacity.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for a SENVILLE 4-Zone installation?\u003c\/h3\u003e\n\u003cp\u003eA four-zone installation requires much more coordination than a single-split system.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we must plan simultaneously:\u003c\/p\u003e\n\u003cp\u003ethe four indoor locations, the four drains, the refrigerant line routes, the outdoor line sets, the wiring, the outdoor unit, the electrical circuit, and the complete commissioning.\u003c\/p\u003e\n\u003cp\u003eOur experience with Quad-Zone installations in \u003cstrong\u003eVerdun, Ville-Marie, Rosemont–La Petite-Patrie, Montreal East, Plateau-Mont-Royal, and Pointe-Claire\u003c\/strong\u003e has allowed us to work in very different environments, from narrow urban apartments to homes where the four zones are located on multiple façades. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is precisely the type of project where preparation makes the difference.\u003c\/p\u003e\n\u003cp\u003eA Quad-Zone heat pump must do more than simply work on the day it is commissioned. It must remain easy to clean, accessible for repairs, visually unobtrusive, and capable of distributing the right amount of air to each of the four zones for many years.\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen quote for the SENVILLE 4-Zone 48,000 BTU\u003c\/h3\u003e\n\u003cp\u003eFor a \u003cstrong\u003eSENVILLE R454B 4-Zone Heat Pump | 48000 BTU\u003c\/strong\u003e in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, or the North Shore\u003c\/strong\u003e, contact AirGreen.\u003c\/p\u003e\n\u003cp\u003eWe can determine the required capacity in each of the four rooms, confirm compatible indoor units, validate AHRI match \u003cstrong\u003eAHRI 215735320\u003c\/strong\u003e, plan the refrigerant lines and drains, check the electrical panel, and confirm eligibility for the \u003cstrong\u003e$5,400 LogisVert grant\u003c\/strong\u003e according to the conditions in effect at the time of installation.\u003c\/p\u003e\n\u003cp\u003eOn a Quad-Zone system, the best result doesn’t come from using the highest possible BTU capacity. It comes from properly distributing the capacity among four spaces, each with its own needs.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"12 + 12 + 12 + 12","offer_id":56201207677220,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_4_ZONES_SENVILLE_R454B_48000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789057863"},{"product_id":"thermopompe-5-zones-senville-r454b-36000-btu","title":"SENVILLE R454B 5-Zone Heat Pump | 36000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA single outdoor unit for five distinct areas: a multi-zone solution that requires proper sizing work\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eA \u003cstrong\u003e36,000-BTU five-zone heat pump\u003c\/strong\u003e should not be approached as five small independent heat pumps grouped around the same compressor. With the \u003cstrong\u003eSENVILLE SENA-36HF-MOA\u003c\/strong\u003e, the five indoor units share the outdoor unit’s available capacity, while each zone retains its own temperature control and airflow.\u003c\/p\u003e\n\u003cp\u003eThis architecture is particularly interesting in homes in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/strong\u003e where needs are distributed among several enclosed rooms: bedrooms, an office, a basement, an open-concept area, an upper floor, or an addition. In this type of building, increasing the capacity of a single wall-mounted unit does not necessarily solve the problem. Instead, heating and cooling should be brought directly to the areas that need them.\u003c\/p\u003e\n\u003cp\u003eThe technical documentation for the \u003cstrong\u003eSENA-36HF-MOA\u003c\/strong\u003e confirms that this multi-zone platform can serve \u003cstrong\u003e2 to 5 zones\u003c\/strong\u003e. It operates on a 208\/230 V single-phase power supply, offers a \u003cstrong\u003eSEER2 of 23\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 13\u003c\/strong\u003e, a nominal capacity of 36,000 BTU, and a much wider modulation range than this nominal value. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the configuration published by AirGreen, the main specifications are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENA-36HF-MOA\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling capacity: 36,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735317\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR cold climate: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR number: 3630064\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 23.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 13.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2: 10.7\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating down to: -30°C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCapacity at -8°C: 38,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCapacity at -15°C: 36,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum capacity at -30°C: 22,400 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP at -8°C: 2.12\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum COP at -30°C: 1.47\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 37 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 40 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum outdoor airflow: approximately 3,038 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound level: 65 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWiFi: included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eProvincial subsidy displayed by AirGreen: $4,560\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat “five zones” really means\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit does not have five compressors. It has a single capacity source that is distributed among the indoor units according to demand.\u003c\/p\u003e\n\u003cp\u003eThis is an essential point.\u003c\/p\u003e\n\u003cp\u003eIf five indoor units are installed in five rooms, they do not automatically receive \u003cstrong\u003e7,200 BTU each\u003c\/strong\u003e simply because 36,000 divided by five equals 7,200.\u003c\/p\u003e\n\u003cp\u003eThe system’s logic is dynamic.\u003c\/p\u003e\n\u003cp\u003eA room that has already reached its setpoint may require very little energy, while an open-concept ground-floor area may require much more capacity. The inverter compressor then adjusts its operating speed within the limits set by the installed combination.\u003c\/p\u003e\n\u003cp\u003eSenville's technical data sheet indicates a \u003cstrong\u003ecooling range of 9,000 to 43,000 BTU\/h\u003c\/strong\u003e and a \u003cstrong\u003eheating range of 10,000 to 44,000 BTU\/h\u003c\/strong\u003e. It also indicates electrical modulation ranging approximately from 600 to 4,000 W in cooling mode and from 600 to 3,750 W in heating mode. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation is what allows a multi-zone system to respond to several varying demands without continuously running the compressor at maximum capacity.\u003c\/p\u003e\n\u003ch3\u003eThe attached brochure shows a two-zone configuration, but the outdoor unit supports up to five zones\u003c\/h3\u003e\n\u003cp\u003eThe first page of the provided document presents a commercial combination consisting of \u003cstrong\u003etwo 18,000 BTU indoor units\u003c\/strong\u003e, under reference SENA-36HF-D1818. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis should not be taken to mean that the SENA-36HF-MOA is limited to two indoor units.\u003c\/p\u003e\n\u003cp\u003eThe technical table in the same document clearly states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNumber of Zones: 2–5.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is the outdoor platform of interest here for the \u003cstrong\u003e5-zone AirGreen\u003c\/strong\u003e configuration.\u003c\/p\u003e\n\u003cp\u003eHowever, the brochure does not provide, in the attached pages, the complete list of permitted combinations of five indoor units. We therefore cannot automatically deduce their individual capacities from this document. In an actual project, we verify the exact combination before selecting the five indoor units.\u003c\/p\u003e\n\u003ch3\u003eWhy five small indoor units can provide better comfort than one large unit\u003c\/h3\u003e\n\u003cp\u003eLet us consider a typical two-story house with a basement.\u003c\/p\u003e\n\u003cp\u003eIt includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea large living room and kitchen;\u003c\/li\u003e\n\u003cli\u003ea primary bedroom;\u003c\/li\u003e\n\u003cli\u003etwo other bedrooms;\u003c\/li\u003e\n\u003cli\u003ea basement office.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEven if a single 24,000 or 36,000 BTU heat pump has sufficient theoretical capacity for the total area, it cannot efficiently deliver air through multiple doors, corridors, stairwells, and walls.\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003e5-zone heat pump\u003c\/strong\u003e addresses the problem differently.\u003c\/p\u003e\n\u003cp\u003eEach area receives its own indoor unit.\u003c\/p\u003e\n\u003cp\u003eIn this scenario, a design could assign one indoor unit to the open area, then use units suited to the bedrooms and basement. We do not automatically assign the same capacity to every room: each zone is sized according to its own thermal losses and gains.\u003c\/p\u003e\n\u003ch3\u003eA bedroom should not be oversized simply because the outdoor unit is large\u003c\/h3\u003e\n\u003cp\u003eThis is a mistake we particularly strive to avoid.\u003c\/p\u003e\n\u003cp\u003eIf a small bedroom has a low heating and cooling load, installing an unnecessarily large indoor unit can produce shorter cycles and less stable comfort.\u003c\/p\u003e\n\u003cp\u003eThe fact that the outdoor unit is capable of \u003cstrong\u003e36,000 BTU\u003c\/strong\u003e does not justify installing large indoor units everywhere.\u003c\/p\u003e\n\u003cp\u003eWe look at, in particular:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003earea of each zone;\u003c\/li\u003e\n\u003cli\u003enumber of exterior walls;\u003c\/li\u003e\n\u003cli\u003enumber of windows;\u003c\/li\u003e\n\u003cli\u003esun exposure;\u003c\/li\u003e\n\u003cli\u003einsulation level;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003ethe presence of heat-generating equipment;\u003c\/li\u003e\n\u003cli\u003ethe frequency with which the room is used.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is particularly important when we work on homes in \u003cstrong\u003eMontreal\u003c\/strong\u003e with several small bedrooms or plexes where each room has a different layout.\u003c\/p\u003e\n\u003ch3\u003eFive independent thermostats, but one shared operating mode\u003c\/h3\u003e\n\u003cp\u003eEach indoor unit can have its own setpoint.\u003c\/p\u003e\n\u003cp\u003eA homeowner could therefore maintain:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e21 °C in the living room;\u003c\/li\u003e\n\u003cli\u003e19 °C in a bedroom;\u003c\/li\u003e\n\u003cli\u003e20 °C in another;\u003c\/li\u003e\n\u003cli\u003e18 °C in a rarely used office;\u003c\/li\u003e\n\u003cli\u003e20.5 °C in the basement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHowever, there is an important limitation to understand before purchasing a multi-zone heat pump.\u003c\/p\u003e\n\u003cp\u003eIndoor units connected to the same outdoor unit should normally operate in compatible modes. One room cannot continuously call for cooling while another requires heating at the same time on a conventional reversible system.\u003c\/p\u003e\n\u003cp\u003eIn most Quebec residences, this limit poses few problems in the middle of winter or at the height of summer, but it can become relevant during the shoulder seasons if certain rooms have significantly different solar loads.\u003c\/p\u003e\n\u003ch3\u003e36,000 nominal BTU\/h, but up to 44,000 BTU\/h under certain conditions\u003c\/h3\u003e\n\u003cp\u003eSenville documentation indicates a nominal heating capacity of \u003cstrong\u003e36,000 BTU\/h\u003c\/strong\u003e, but a range that can reach \u003cstrong\u003e44,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis margin is useful during periods of high simultaneous demand.\u003c\/p\u003e\n\u003cp\u003eConversely, the system can significantly reduce its output when only one or two zones actually require heat.\u003c\/p\u003e\n\u003cp\u003eThis is particularly useful in the spring and fall in \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e, when heating needs change rapidly between day and night.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -30 °C: a very interesting feature, but one that must be interpreted correctly\u003c\/h3\u003e\n\u003cp\u003eSenville indicates a minimum outdoor heating temperature of \u003cstrong\u003e-22 °F \/ -30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen data sheet also specifies the following capacities:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer TyagGW_tableContainerWithTableOfContents\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eOutdoor temperature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003ePublished capacity\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-8 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e38,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-15 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e36,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e-30 °C maximum\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e22,400 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThese figures show why the statement “heats down to -30 °C” is never enough to size a heat pump.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-15 °C\u003c\/strong\u003e, the listed capacity remains equivalent to the nominal 36,000 BTU.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-30 °C\u003c\/strong\u003e, it drops to approximately \u003cstrong\u003e22,400 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIf the house loses 32,000 BTU\/h when the outdoor temperature reaches -30 °C, the heat pump can continue to make a significant contribution to heating, but supplemental heating will be needed to make up the difference.\u003c\/p\u003e\n\u003ch3\u003eCOP 2.12 at -8 °C and COP 1.47 at -30 °C\u003c\/h3\u003e\n\u003cp\u003eThe COP helps provide a better understanding of what happens with energy consumption.\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003eCOP of 2.12\u003c\/strong\u003e indicates that under the corresponding conditions, the system provides approximately 2.12 units of heat for every unit of electricity consumed.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-30°C\u003c\/strong\u003e, the published maximum COP drops to \u003cstrong\u003e1.47\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe heat pump therefore still has an advantage over electric resistance heating under these conditions, but that advantage is significantly smaller than when the outdoor temperature is less extreme.\u003c\/p\u003e\n\u003cp\u003eThis detail is important for homeowners in \u003cstrong\u003eLaval, Longueuil, Terrebonne, Boucherville, Blainville, or Montreal\u003c\/strong\u003e who want to estimate heating savings. Annual savings must be assessed over an entire season, not only on the coldest days.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR cold climate and listed rebate of $4,560\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen data sheet identifies this combination as \u003cstrong\u003eENERGY STAR cold climate\u003c\/strong\u003e with the number \u003cstrong\u003e3630064\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt also indicates a provincial rebate of \u003cstrong\u003e4 560 $\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSince the capacity at -8°C published on the data sheet is \u003cstrong\u003e38,000 BTU\/h\u003c\/strong\u003e, this value becomes particularly important when calculating certain financial incentives based on low-temperature performance.\u003c\/p\u003e\n\u003cp\u003eFor a five-zone system, however, the certified combination actually installed must be verified. The same outdoor unit may accept several indoor-unit assemblies, and we never assume that all combinations automatically produce the same certification.\u003c\/p\u003e\n\u003ch3\u003eThe role of AHRI number 215735317\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen data sheet associates this configuration with \u003cstrong\u003eAHRI number 215735317\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis is more precise than the general description “Senville 36,000 BTU.”\u003c\/p\u003e\n\u003cp\u003eFor a project involving five indoor units, we always want to match:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe outdoor unit;\u003c\/li\u003e\n\u003cli\u003ethe five indoor units;\u003c\/li\u003e\n\u003cli\u003ethe AHRI combination;\u003c\/li\u003e\n\u003cli\u003elow-temperature performance;\u003c\/li\u003e\n\u003cli\u003eeligibility for the rebate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a particularly important precaution with a multi-zone system, because a single outdoor unit may serve several different configurations.\u003c\/p\u003e\n\u003ch2\u003eInstalling five zones correctly: where HVAC expertise becomes decisive\u003c\/h2\u003e\n\u003ch3\u003eThe first challenge is deciding where the five zones begin and end.\u003c\/h3\u003e\n\u003cp\u003eFive rooms do not necessarily correspond to five ideal zones.\u003c\/p\u003e\n\u003cp\u003eIn an open-concept home, the kitchen, dining room, and living room may behave as one large thermal zone.\u003c\/p\u003e\n\u003cp\u003eConversely, two bedrooms of the same size can have very different loads if one faces due south and the other due north.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore aim to distribute the units according to the property's actual thermal behavior.\u003c\/p\u003e\n\u003cp\u003eA representative configuration could be:\u003c\/p\u003e\n\u003ch4\u003eZone 1: main living area\u003c\/h4\u003e\n\u003cp\u003eHigher-capacity unit for the living room, kitchen, and dining room.\u003c\/p\u003e\n\u003ch4\u003eZone 2: primary bedroom\u003c\/h4\u003e\n\u003cp\u003eIndependent control to maintain a different temperature at night.\u003c\/p\u003e\n\u003ch4\u003eZone 3: second bedroom\u003c\/h4\u003e\n\u003cp\u003eUnit sized for a lower load.\u003c\/p\u003e\n\u003ch4\u003eZone 4: office or third bedroom\u003c\/h4\u003e\n\u003cp\u003eIndependent control, particularly useful when this room is not used every day.\u003c\/p\u003e\n\u003ch4\u003eZone 5: basement\u003c\/h4\u003e\n\u003cp\u003eA zone that is often cooler in summer and has heating requirements that differ significantly from those of the upper floor.\u003c\/p\u003e\n\u003cp\u003eThis distribution is not a universal prescription. It mainly illustrates why a \u003cstrong\u003e5-zone installation\u003c\/strong\u003e requires more design work than a simple wall-mounted heat pump.\u003c\/p\u003e\n\u003ch3\u003e125 feet of precharge: an important figure when connecting five indoor units\u003c\/h3\u003e\n\u003cp\u003eThe system uses \u003cstrong\u003eR-454B\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe technical specifications indicate a charge of \u003cstrong\u003e134.04 oz of R-454B\u003c\/strong\u003e and a stated precharge for \u003cstrong\u003e125 ft\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis length becomes particularly relevant in a five-zone installation.\u003c\/p\u003e\n\u003cp\u003eSuppose the routes are approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e15 ft;\u003c\/li\u003e\n\u003cli\u003e20 ft;\u003c\/li\u003e\n\u003cli\u003e25 ft;\u003c\/li\u003e\n\u003cli\u003e30 ft;\u003c\/li\u003e\n\u003cli\u003e35 ft.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe total already reaches \u003cstrong\u003e125 ft\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWith five units, we must therefore plan the routes before choosing the outdoor unit's final location.\u003c\/p\u003e\n\u003cp\u003eA compressor positioned solely because it is not visible from the street may sometimes require adding dozens of feet of unnecessary piping.\u003c\/p\u003e\n\u003ch3\u003eThe 1\/4 – 1\/2 in piping specification should not be applied blindly to all five zones\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate \u003cstrong\u003e1\/4 in – 1\/2 in\u003c\/strong\u003e piping.\u003c\/p\u003e\n\u003cp\u003eIn a multi-zone installation, pipe sizes may depend on the capacity and exact model of each indoor unit.\u003c\/p\u003e\n\u003cp\u003eWe therefore do not assume that all five indoor units necessarily use the same diameters.\u003c\/p\u003e\n\u003cp\u003eEach connection must be checked before preparing the job site.\u003c\/p\u003e\n\u003ch3\u003eThe drains become five separate projects\u003c\/h3\u003e\n\u003cp\u003eThis is an aspect that is often underestimated.\u003c\/p\u003e\n\u003cp\u003eA five-zone heat pump means up to five units that can produce condensate in cooling mode.\u003c\/p\u003e\n\u003cp\u003eEach indoor unit must have:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea properly sized drain;\u003c\/li\u003e\n\u003cli\u003ean adequate slope when drainage relies on gravity;\u003c\/li\u003e\n\u003cli\u003ean accessible route;\u003c\/li\u003e\n\u003cli\u003ebackflow protection;\u003c\/li\u003e\n\u003cli\u003ea suitable strategy when gravity drainage is not possible.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn some installations in \u003cstrong\u003eMontreal and Longueuil\u003c\/strong\u003e, drainage issues are more significant than refrigerant piping issues, particularly when several units must be installed on interior walls.\u003c\/p\u003e\n\u003cp\u003eA condensate pump may sometimes be necessary, but we generally favor gravity drainage when the configuration allows it.\u003c\/p\u003e\n\u003ch3\u003eThe outdoor unit is substantial: 211.86 lb\u003c\/h3\u003e\n\u003cp\u003eThe SENA-36HF-MOA measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e38.58 in × 16.34 in × 38.39 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand its stated net weight is \u003cstrong\u003e211.86 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe are well beyond the weight of a small single-zone unit.\u003c\/p\u003e\n\u003cp\u003eThe support must be selected accordingly.\u003c\/p\u003e\n\u003cp\u003eIn Quebec, you must also take into account:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003esnow accumulation;\u003c\/li\u003e\n\u003cli\u003eice created by defrosting;\u003c\/li\u003e\n\u003cli\u003evibrations;\u003c\/li\u003e\n\u003cli\u003ewall or ground stability;\u003c\/li\u003e\n\u003cli\u003eaccess for servicing;\u003c\/li\u003e\n\u003cli\u003ethe required clearances around the outdoor unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy we avoid installing it too close to the ground\u003c\/h3\u003e\n\u003cp\u003eA heat pump capable of operating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e must physically be able to breathe when it snows.\u003c\/p\u003e\n\u003cp\u003eIf the outdoor unit is blocked by 30 or 40 cm of snow, the low-temperature certification does nothing to solve the problem.\u003c\/p\u003e\n\u003cp\u003eWe therefore plan for an elevation suited to the site.\u003c\/p\u003e\n\u003cp\u003eDuring defrosting, the outdoor unit also produces water. This water can freeze beneath the unit and gradually form a significant buildup of ice.\u003c\/p\u003e\n\u003cp\u003eThe space beneath the unit must be planned with this reality in mind.\u003c\/p\u003e\n\u003ch3\u003e3,037 CFM: the outdoor unit moves a lot of air\u003c\/h3\u003e\n\u003cp\u003eThe technical table indicates a maximum outdoor airflow of \u003cstrong\u003e3,037.2 CFM\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis figure explains why we leave sufficient space around the unit.\u003c\/p\u003e\n\u003cp\u003eAn outdoor unit enclosed between several walls or installed beneath an overly restrictive structure may reabsorb air that has already been discharged.\u003c\/p\u003e\n\u003cp\u003eA 36,000 BTU multizone heat pump needs a location that allows genuine airflow, not merely enough space to physically fit the unit.\u003c\/p\u003e\n\u003ch3\u003e65 dB(A): the choice of exterior wall deserves attention\u003c\/h3\u003e\n\u003cp\u003eThe indicated outdoor sound level is \u003cstrong\u003e65 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn a detached property with plenty of land, this often offers several placement options.\u003c\/p\u003e\n\u003cp\u003eIn a duplex in \u003cstrong\u003eMontréal\u003c\/strong\u003e or a home close to its neighbors in \u003cstrong\u003eLaval or Longueuil\u003c\/strong\u003e, we need to pay greater attention to windows, terraces, and surfaces that reflect sound.\u003c\/p\u003e\n\u003cp\u003ePlacing the outdoor unit in a narrow corridor between two buildings can result in a very different perception of sound from that experienced in an open area.\u003c\/p\u003e\n\u003ch3\u003eMCA 37 A and MOP 40 A\u003c\/h3\u003e\n\u003cp\u003eThe unit operates at \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe documentation states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMCA: 37 A\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMOP: 40 A\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese values are used to design the unit's electrical circuit.\u003c\/p\u003e\n\u003cp\u003eA circuit breaker should not be selected by making an approximate calculation based on the 36,000 BTU rating. The electrical specifications on the nameplate and in the model documentation are the references to follow.\u003c\/p\u003e\n\u003ch3\u003eWiFi makes perfect sense with five zones\u003c\/h3\u003e\n\u003cp\u003eRemote control may seem secondary on a single-zone heat pump. With five indoor units, it becomes much more practical.\u003c\/p\u003e\n\u003cp\u003eThe documentation highlights \u003cstrong\u003esmart app control and Alexa integration\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA family can adjust different rooms without walking throughout the house with five remote controls.\u003c\/p\u003e\n\u003cp\u003eThis also makes it possible to program a rarely used bedroom differently from the living room or office.\u003c\/p\u003e\n\u003cp\u003eHowever, WiFi should not be considered a substitute for properly selecting capacities. An improperly sized head will remain improperly sized even with an excellent app.\u003c\/p\u003e\n\u003ch3\u003eLeak detection and self-diagnostics\u003c\/h3\u003e\n\u003cp\u003eSenville also indicates monitoring and \u003cstrong\u003eproblem-detection functions, including certain refrigerant-related anomalies\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn a five-zone system, this feature can facilitate the initial diagnostic step.\u003c\/p\u003e\n\u003cp\u003eBut when only one zone is no longer heating properly, several causes are possible:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eclogged filter;\u003c\/li\u003e\n\u003cli\u003edirty heat exchanger;\u003c\/li\u003e\n\u003cli\u003edrain problem;\u003c\/li\u003e\n\u003cli\u003eindoor fan;\u003c\/li\u003e\n\u003cli\u003ecommunication;\u003c\/li\u003e\n\u003cli\u003esensor;\u003c\/li\u003e\n\u003cli\u003erefrigerant charge;\u003c\/li\u003e\n\u003cli\u003econfiguration problem.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe system must therefore be diagnosed as a whole rather than automatically replacing a part on the unit that appears to be causing the problem.\u003c\/p\u003e\n\u003ch3\u003eFive zones also mean five units to maintain\u003c\/h3\u003e\n\u003cp\u003eThe added comfort comes with more maintenance points.\u003c\/p\u003e\n\u003cp\u003eA 5-zone configuration includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003efive filters or filter assemblies;\u003c\/li\u003e\n\u003cli\u003efive indoor heat exchangers;\u003c\/li\u003e\n\u003cli\u003efive fans;\u003c\/li\u003e\n\u003cli\u003efive drains;\u003c\/li\u003e\n\u003cli\u003efive louver assemblies;\u003c\/li\u003e\n\u003cli\u003eseveral additional refrigerant connections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA bedroom unit may remain relatively clean while a head located in an open kitchen accumulates dust and contaminants much more quickly.\u003c\/p\u003e\n\u003cp\u003eWe therefore recommend \u003cstrong\u003eHVAC maintenance tailored to each zone\u003c\/strong\u003e rather than an approach in which all units are automatically cleaned at the same interval.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a documentation discrepancy to verify\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates a manufacturer’s warranty \u003cstrong\u003e10-10-0\u003c\/strong\u003e with an additional warranty possibly available.\u003c\/p\u003e\n\u003cp\u003eHowever, the attached Senville brochure indicates \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. This information appears clearly in the technical table. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference must be confirmed at the time of sale based on the exact product, the installed combination, and the applicable registration requirements.\u003c\/p\u003e\n\u003cp\u003eWe prefer to flag this type of discrepancy rather than present a longer warranty without verifying the precise conditions.\u003c\/p\u003e\n\u003ch3\u003eWhen is a SENVILLE 5-zone 36,000 BTU particularly relevant?\u003c\/h3\u003e\n\u003cp\u003eWe mainly consider this configuration when the property has \u003cstrong\u003eseveral separate rooms\u003c\/strong\u003e and the owner wants to avoid installing multiple outdoor units.\u003c\/p\u003e\n\u003cp\u003eIt may be particularly suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea large house with enclosed bedrooms;\u003c\/li\u003e\n\u003cli\u003ea two-story property with a basement;\u003c\/li\u003e\n\u003cli\u003efive areas requiring different settings;\u003c\/li\u003e\n\u003cli\u003ea multi-unit property where several spaces need to be conditioned;\u003c\/li\u003e\n\u003cli\u003ea house where the exterior aesthetics limit the number of units;\u003c\/li\u003e\n\u003cli\u003ea project seeking a \u003cstrong\u003ecold-climate ENERGY STAR\u003c\/strong\u003e heat pump;\u003c\/li\u003e\n\u003cli\u003ea property where operation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eConversely, it would be unnecessarily complex for a large open-concept area where one or two properly sized units are sufficient.\u003c\/p\u003e\n\u003ch3\u003eThe main pitfall: wanting to use all five ports simply because they are available\u003c\/h3\u003e\n\u003cp\u003eThe fact that the outdoor unit supports up to five zones does not mean that five units are always the best solution.\u003c\/p\u003e\n\u003cp\u003eWe do not recommend adding a head unit to a room that does not genuinely need one simply to “use all the ports.”\u003c\/p\u003e\n\u003cp\u003eEach additional unit adds:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epiping;\u003c\/li\u003e\n\u003cli\u003ea drain;\u003c\/li\u003e\n\u003cli\u003ewiring;\u003c\/li\u003e\n\u003cli\u003emaintenance;\u003c\/li\u003e\n\u003cli\u003econnections;\u003c\/li\u003e\n\u003cli\u003ea potential load on the system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA good 5-zone installation is therefore one where \u003cstrong\u003eall five zones are genuinely justified\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhy AirGreen Pays So Much Attention to Design Before Installation\u003c\/h3\u003e\n\u003cp\u003eWith five zones, a poor choice made at the beginning of the project is repeated several times.\u003c\/p\u003e\n\u003cp\u003eA poorly positioned outdoor unit can lengthen five line-set runs. Poor head-unit selection can affect five spaces. A poor drainage plan can create several points of risk.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we therefore verify the overall configuration before starting the work.\u003c\/p\u003e\n\u003cp\u003eWe analyze, among other things, the loads in the different zones, the unit locations, piping routes, electrical capacity, drainage, the outdoor unit’s position, and the certified combination.\u003c\/p\u003e\n\u003cp\u003eThis preparation is what allows a multi-zone heat pump to operate as a coherent system rather than as five appliances simply connected to the same compressor.\u003c\/p\u003e\n\u003ch2\u003eA particularly comprehensive solution for a home divided into several areas\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA-36HF-MOA R454B 36,000 BTU\u003c\/strong\u003e offers a highly relevant technical profile for a five-zone configuration: \u003cstrong\u003eSEER2 23, EER2 13, HSPF2 10.7, heating down to -30°C, modulation up to 44,000 BTU\/h in heating mode, ENERGY STAR Cold Climate, and WiFi\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eBut with an installation this complex, the quality of the result depends more on the design than on the number of features listed on the specification sheet.\u003c\/p\u003e\n\u003cp\u003eA good installation must intelligently distribute capacity among the five areas, keep line-set runs reasonable, ensure drainage for each unit, and maintain the required clearances around the outdoor unit.\u003c\/p\u003e\n\u003cp\u003eFor a property in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, the South Shore, or Montérégie\u003c\/strong\u003e, this configuration can offer a very appealing level of control while limiting the exterior façade to a single outdoor unit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen for a quote on your SENVILLE 5-zone, 36,000 BTU heat pump. Before installation, we can verify the required capacity in each of the five zones, the AHRI combination, the locations, the electrical circuit, the refrigerant lines, and the applicable rebate.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56120040194340,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_5_ZONES_SENVILLE_R454B_36000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789057869"},{"product_id":"thermopompe-5-zones-senville-r454b-48000-btu","title":"SENVILLE R454B 5-Zone Heat Pump | 48000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eFive comfort zones from a single outdoor unit: a demanding configuration where sizing makes all the difference\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e48,000 BTU SENVILLE R454B 5-zone heat pump\u003c\/strong\u003e, built around the \u003cstrong\u003eSENA-48HF-MOA\u003c\/strong\u003e outdoor unit, is designed for homes, duplexes, multifamily buildings, and small commercial spaces where several areas need to be heated and cooled independently without installing five outdoor units.\u003c\/p\u003e\n\u003cp\u003eThis SENVILLE platform is a particularly appealing solution for certain properties in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore and the South Shore\u003c\/strong\u003e: multistory homes, residences with finished basements, properties with several enclosed bedrooms, or buildings where installing a central duct network would be complex.\u003c\/p\u003e\n\u003cp\u003eThe essential point is to understand what “5 zones” really means. The same outdoor unit supplies up to five indoor units in the configuration presented here. Each zone has its own control, but \u003cstrong\u003ethe five zones share the available capacity of the same outdoor compressor\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe technical documentation for the \u003cstrong\u003eSENA-48HF-MOA\u003c\/strong\u003e confirms that this multizone platform can accommodate \u003cstrong\u003e2 to 6 zones\u003c\/strong\u003e, with a 208\/230 V single-phase power supply and an efficiency rating of 23 SEER2. A configuration with five indoor units is therefore well within the intended capabilities of this outdoor unit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the AirGreen configuration presented here, the main features are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor model: SENA-48HF-MOA\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eConfiguration: 5 zones\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated capacity: 48,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735320\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR reference: 3630067\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 23.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 12.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2: 11.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCold climate: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMinimum heating temperature: -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi: included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 37 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 40 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum outdoor airflow: approximately 4,503 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound level: 65 dB\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor dimensions: 37.48 × 16.34 × 52.48 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSpecified piping: 3\/8 in – 5\/8 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eVertical louvers: automatic\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHorizontal louvers: automatic\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAdditional warranty: available\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProvincial rebate indicated: $5,400\u003c\/strong\u003e, subject to applicable conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy a five-zone heat pump should not be sized simply by dividing 48,000 BTU by five\u003c\/h3\u003e\n\u003cp\u003eA common mistake is to take the \u003cstrong\u003e48,000 BTU\u003c\/strong\u003e capacity of the outdoor unit, divide it by five, and assume that each zone should receive approximately 9,600 BTU.\u003c\/p\u003e\n\u003cp\u003eThis is not how a multizone system should be designed.\u003c\/p\u003e\n\u003cp\u003eEach space has its own heating load. A southwest-facing open kitchen may require much more air conditioning than a bedroom located on the north side. A basement may require little cooling in July but need more heating during certain winter periods.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we therefore assess each zone separately.\u003c\/p\u003e\n\u003cp\u003eWe look at factors including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eits area;\u003c\/li\u003e\n\u003cli\u003ethe number and size of windows;\u003c\/li\u003e\n\u003cli\u003eorientation;\u003c\/li\u003e\n\u003cli\u003einsulation level;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003ethe presence of a kitchen;\u003c\/li\u003e\n\u003cli\u003eopenings to other rooms;\u003c\/li\u003e\n\u003cli\u003eexposure on the top floor;\u003c\/li\u003e\n\u003cli\u003eheat loss;\u003c\/li\u003e\n\u003cli\u003enatural air circulation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWith a five-zone configuration, this step becomes even more important than with a simple wall-mounted heat pump.\u003c\/p\u003e\n\u003ch3\u003eA typical scenario: a three-level home with five truly distinct spaces\u003c\/h3\u003e\n\u003cp\u003eLet's consider a configuration we regularly encounter in Greater Montreal.\u003c\/p\u003e\n\u003cp\u003eA home includes:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ean open-concept living room, kitchen, and dining area on the main floor;\u003c\/li\u003e\n\u003cli\u003ea primary bedroom;\u003c\/li\u003e\n\u003cli\u003etwo secondary bedrooms;\u003c\/li\u003e\n\u003cli\u003ea finished basement.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe homeowner wants to control five areas separately.\u003c\/p\u003e\n\u003cp\u003eInstalling five independent systems would require five outdoor units. This could take up considerable space along the side of the property and complicate the installation's appearance.\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003eSENVILLE 48,000 BTU multizone heat pump\u003c\/strong\u003e makes it possible to concentrate all cooling output around a single outdoor unit.\u003c\/p\u003e\n\u003cp\u003eHowever, the five indoor units will not necessarily have the same capacity.\u003c\/p\u003e\n\u003cp\u003eThe main living area may require a significantly larger unit than the bedrooms. The basement may need a different capacity from a bedroom located directly beneath the attic.\u003c\/p\u003e\n\u003cp\u003eThe indoor units must therefore be selected based on the actual building requirements, rather than simply by mathematically dividing the outdoor unit's capacity.\u003c\/p\u003e\n\u003ch3\u003eThe SENA-48HF-MOA is genuinely designed for multizone applications\u003c\/h3\u003e\n\u003cp\u003eThe supplied brochure illustrates a two-zone commercial configuration with two 24,000 BTU units, but it clearly identifies the \u003cstrong\u003eSENA-48HF-MOA\u003c\/strong\u003e as a platform capable of supporting \u003cstrong\u003e2 to 6 zones\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a five-zone AirGreen configuration, we use this same outdoor platform with a combination of compatible indoor units suited to the property's needs.\u003c\/p\u003e\n\u003cp\u003eThis is an important detail for product SEO: the Senville product page shown in the brochure displays two indoor units because it presents a specific two-zone setup, not because the outdoor unit is limited to two zones. The technical specifications clearly establish a range of \u003cstrong\u003e2 to 6 zones\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e23 SEER2: impressive efficiency for a high-capacity multizone heat pump\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENA-48HF-MOA\u003c\/strong\u003e delivers a rating of \u003cstrong\u003e23 SEER2\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSenville also indicates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 12\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region 4: 11\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region 5: 9\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal COP: 3.7 W\/W\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSEER2 represents seasonal cooling efficiency. For a property using five indoor units for a significant portion of the summer, the efficiency of the outdoor compressor becomes particularly important.\u003c\/p\u003e\n\u003cp\u003eHowever, \u003cstrong\u003e23 SEER2\u003c\/strong\u003e should not be interpreted as an automatic guarantee of minimal energy consumption.\u003c\/p\u003e\n\u003cp\u003eActual performance also depends on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003enumber of zones calling for output;\u003c\/li\u003e\n\u003cli\u003eprogrammed temperatures;\u003c\/li\u003e\n\u003cli\u003esizing of each indoor unit;\u003c\/li\u003e\n\u003cli\u003efilter condition;\u003c\/li\u003e\n\u003cli\u003einstallation quality;\u003c\/li\u003e\n\u003cli\u003etotal piping length;\u003c\/li\u003e\n\u003cli\u003ebuilding insulation;\u003c\/li\u003e\n\u003cli\u003efrequency of use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA highly rated but improperly sized heat pump may operate under less favorable conditions than a properly selected system.\u003c\/p\u003e\n\u003ch3\u003eA very wide modulation range\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit’s technical data indicates a cooling capacity of \u003cstrong\u003e47,000 BTU\/h\u003c\/strong\u003e, with an operating range of approximately \u003cstrong\u003e12,000 to 57,000 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn heating mode, the stated nominal capacity is \u003cstrong\u003e49,000 BTU\/h\u003c\/strong\u003e, with a range of \u003cstrong\u003e13,000 to 57,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation is especially meaningful with five zones.\u003c\/p\u003e\n\u003cp\u003eAt one point, only one bedroom may need heating. Two hours later, four zones may simultaneously request energy.\u003c\/p\u003e\n\u003cp\u003eThe inverter compressor adjusts its output within its operating range rather than constantly running at maximum capacity.\u003c\/p\u003e\n\u003ch3\u003eFive zones do not provide five times 48,000 BTU\u003c\/h3\u003e\n\u003cp\u003eThis is a fundamental distinction.\u003c\/p\u003e\n\u003cp\u003eThe indoor units may have significant combined nominal capacities, but the actual available output always depends on what the outdoor unit can provide.\u003c\/p\u003e\n\u003cp\u003eThe heat pump distributes its capacity among the active zones.\u003c\/p\u003e\n\u003cp\u003eWhen several zones simultaneously call for maximum output, the compressor must distribute its production.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, this is precisely why we avoid systematically oversizing every indoor head. A combination that looks overly ambitious on paper can result in a less consistent distribution when all zones are operating at the same time.\u003c\/p\u003e\n\u003ch3\u003eParticularly impressive heating capacity at -8 °C\u003c\/h3\u003e\n\u003cp\u003eAccording to the data for this AirGreen configuration, the heat pump provides approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e45,000 BTU\/h at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP: 2.6 at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis temperature is highly relevant for an installation in \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA COP of 2.6 means that under this given condition, the system can transfer approximately 2.6 units of thermal energy for every unit of electricity used by the refrigeration cycle.\u003c\/p\u003e\n\u003cp\u003eFor a building heated primarily by electricity, this type of performance enables the heat pump to considerably reduce the share of heating provided directly by resistance elements during much of the winter, when the building is properly sized.\u003c\/p\u003e\n\u003ch3\u003e47,000 BTU at -15 °C: capacity remains high\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003e-15 °C\u003c\/strong\u003e, the data provided indicates approximately \u003cstrong\u003e47,000 BTU\/h\u003c\/strong\u003e of heating capacity.\u003c\/p\u003e\n\u003cp\u003eThis is an important characteristic for a \u003cstrong\u003ecold-climate heat pump in Quebec\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eHowever, the figure must always be considered in relation to the property's heat loss.\u003c\/p\u003e\n\u003cp\u003eA house losing 30,000 BTU\/h at that temperature is in a very different situation from a building losing 55,000.\u003c\/p\u003e\n\u003cp\u003eThe heat pump should never be selected solely on the basis of its maximum capacity: we compare what it can provide with the building's actual needs.\u003c\/p\u003e\n\u003ch3\u003eAt -30 °C, the heat pump still operates, but its capacity decreases\u003c\/h3\u003e\n\u003cp\u003eThe stated minimum heating temperature is \u003cstrong\u003e-30 °C\u003c\/strong\u003e. This limit is also confirmed in Senville documentation, which indicates \u003cstrong\u003e-22 °F \/ -30 °C\u003c\/strong\u003e as the minimum outdoor heating temperature. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt this temperature, the AirGreen data indicates approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e24,600 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP: 1.27\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis information is essential for the homeowner.\u003c\/p\u003e\n\u003cp\u003eA heat pump advertised as operating at -30 °C does not necessarily produce its full nominal capacity at that temperature.\u003c\/p\u003e\n\u003cp\u003eWith five zones, this reality becomes even more apparent. If all rooms require a great deal of heat during a cold snap at -30 °C, the \u003cstrong\u003e24,600 BTU available\u003c\/strong\u003e must be shared among them.\u003c\/p\u003e\n\u003cp\u003eSupplementary heating may then become necessary depending on the property's heat loss.\u003c\/p\u003e\n\u003ch3\u003eWhy we emphasize this distinction in our estimates\u003c\/h3\u003e\n\u003cp\u003eIn the field, we still encounter homeowners who think that a “48,000 BTU down to -30 °C” heat pump automatically delivers 48,000 BTU at -30 °C.\u003c\/p\u003e\n\u003cp\u003eThese are two different characteristics:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e48,000 BTU\u003c\/strong\u003e corresponds to the nominal capacity class;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-30 °C\u003c\/strong\u003e corresponds to the announced operating limit;\u003c\/li\u003e\n\u003cli\u003eThe capacity available at -30 °C is given here as approximately \u003cstrong\u003e24,600 BTU\/h\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePresenting this difference before installation helps avoid unrealistic expectations during the few coldest days of winter.\u003c\/p\u003e\n\u003ch3\u003eA true cold-climate heat pump\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen configuration is listed as \u003cstrong\u003eCOLD CLIMATE: Yes\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSenville also presents this family as a cold-climate heat pump capable of providing heating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor an installation in \u003cstrong\u003eMontreal, Laval, Longueuil, on the North Shore or South Shore\u003c\/strong\u003e, this feature is much more relevant than a heat pump designed primarily for climates where severe subzero temperatures are rare.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR and AHRI number\u003c\/h3\u003e\n\u003cp\u003eThe configuration is \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e, with reference \u003cstrong\u003e3630067\u003c\/strong\u003e and number \u003cstrong\u003eAHRI 215735320\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe Senville documentation associated with the product also confirms its ENERGY STAR certification. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor AirGreen, the AHRI number is particularly important when preparing a \u003cstrong\u003eheat pump rebate\u003c\/strong\u003e application.\u003c\/p\u003e\n\u003cp\u003eWe do not verify only the brand or outdoor capacity. The exact unit pairing must meet the requirements applicable to the program.\u003c\/p\u003e\n\u003ch3\u003eA provincial rebate listed at $5,400\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing indicates a \u003cstrong\u003e$5,400 provincial rebate\u003c\/strong\u003e for this configuration.\u003c\/p\u003e\n\u003cp\u003eFor a five-zone installation, this amount may represent a significant portion of the project cost.\u003c\/p\u003e\n\u003cp\u003eHowever, we recommend considering this amount as \u003cstrong\u003econditional on final eligibility\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eDepending on the applicable program, it may be necessary to verify:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe exact AHRI;\u003c\/li\u003e\n\u003cli\u003ethe indoor models;\u003c\/li\u003e\n\u003cli\u003ethe building type;\u003c\/li\u003e\n\u003cli\u003ethe ENERGY STAR status;\u003c\/li\u003e\n\u003cli\u003ethe installation location;\u003c\/li\u003e\n\u003cli\u003ethe completion date;\u003c\/li\u003e\n\u003cli\u003ethe supporting documents;\u003c\/li\u003e\n\u003cli\u003ethe rules in effect at the time of the application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe prefer to validate these details before installation so the customer can compare solutions based on realistic information.\u003c\/p\u003e\n\u003ch2\u003eInstalling five zones correctly: the technical details that determine long-term comfort\u003c\/h2\u003e\n\u003ch3\u003eFive wall-mounted heads require a real placement strategy\u003c\/h3\u003e\n\u003cp\u003eIn a five-zone installation, one of the most important decisions is not the compressor model: it is the location of each indoor unit.\u003c\/p\u003e\n\u003cp\u003eA unit can have the right capacity and still serve its zone poorly if it blows toward:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea staircase;\u003c\/li\u003e\n\u003cli\u003ea corridor;\u003c\/li\u003e\n\u003cli\u003ea door that is constantly open;\u003c\/li\u003e\n\u003cli\u003ea wall opposite that is too close;\u003c\/li\u003e\n\u003cli\u003ea large opening leading to another floor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we assess airflow before drilling.\u003c\/p\u003e\n\u003cp\u003eFor each zone, we analyze:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewhere occupants spend the most time;\u003c\/li\u003e\n\u003cli\u003ewhere warm air accumulates;\u003c\/li\u003e\n\u003cli\u003ewhere the sun hits;\u003c\/li\u003e\n\u003cli\u003ethe available clearance;\u003c\/li\u003e\n\u003cli\u003ethe drain route;\u003c\/li\u003e\n\u003cli\u003eaccess to the outdoors;\u003c\/li\u003e\n\u003cli\u003ethe piping length.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eA head in the corridor does not guarantee comfort in four bedrooms\u003c\/h3\u003e\n\u003cp\u003eThis is a situation we encounter regularly.\u003c\/p\u003e\n\u003cp\u003eA homeowner wants to avoid multiple indoor units and proposes installing one large indoor head in a corridor serving several bedrooms.\u003c\/p\u003e\n\u003cp\u003eWhen the doors are closed, air distribution becomes limited.\u003c\/p\u003e\n\u003cp\u003eA ductless heat pump primarily heats and cools the air it can actually move within its distribution range.\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003efive-zone configuration\u003c\/strong\u003e makes it possible to place more distribution points exactly where they are useful, particularly in a compartmentalized home.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi included: much more useful when managing five zones\u003c\/h3\u003e\n\u003cp\u003eThe system offers \u003cstrong\u003eWi-Fi\u003c\/strong\u003e, and Senville documentation indicates that the system can be controlled remotely, settings can be changed, and schedules can be created through an app. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWith five zones, the feature becomes particularly practical.\u003c\/p\u003e\n\u003cp\u003eFor example, a homeowner can:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ekeep unused bedrooms at a different temperature;\u003c\/li\u003e\n\u003cli\u003eincrease living room comfort before returning home;\u003c\/li\u003e\n\u003cli\u003ereduce basement demand overnight;\u003c\/li\u003e\n\u003cli\u003eadjust the zones according to occupancy schedules.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eZoning is most valuable when each space is actually used differently.\u003c\/p\u003e\n\u003ch3\u003eThe zones are not five completely independent systems\u003c\/h3\u003e\n\u003cp\u003eThere is an important limitation to keep in mind.\u003c\/p\u003e\n\u003cp\u003eAll indoor units are connected to the same outdoor unit. They therefore do not operate like five independent heat pumps.\u003c\/p\u003e\n\u003cp\u003eThe modes generally need to remain compatible.\u003c\/p\u003e\n\u003cp\u003eThe system should not be designed with the expectation that one room will be heated while another unit connected to the same outdoor unit cools simultaneously.\u003c\/p\u003e\n\u003cp\u003eIn a residential home, this restriction is generally easy to manage.\u003c\/p\u003e\n\u003cp\u003eHowever, it can be significant in certain commercial applications or in a property with areas that have very different heating and cooling loads.\u003c\/p\u003e\n\u003ch3\u003eFive piping runs: design before installation is essential\u003c\/h3\u003e\n\u003cp\u003eA five-zone configuration means multiple sets of refrigerant lines.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product sheet indicates \u003cstrong\u003e3\/8 in – 5\/8 in\u003c\/strong\u003e piping for this platform, but the actual connections for the various indoor units must be verified based on the selected heads and the final configuration.\u003c\/p\u003e\n\u003cp\u003eWe plan for, among other things:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe outlet of each indoor unit;\u003c\/li\u003e\n\u003cli\u003ethe route to the outdoor unit;\u003c\/li\u003e\n\u003cli\u003elengths;\u003c\/li\u003e\n\u003cli\u003eelevation differences;\u003c\/li\u003e\n\u003cli\u003eoutdoor protection;\u003c\/li\u003e\n\u003cli\u003erefrigerant connections;\u003c\/li\u003e\n\u003cli\u003eaccess for servicing.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eIn a multi-story home, these runs can quickly become one of the most complex parts of the project.\u003c\/p\u003e\n\u003ch3\u003eAn R-454B precharge covering up to 150 feet\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer’s documentation indicates that the unit uses \u003cstrong\u003eR-454B\u003c\/strong\u003e, with a charge of \u003cstrong\u003e151.68 oz\u003c\/strong\u003e and a precharge covering up to \u003cstrong\u003e150 ft of piping\u003c\/strong\u003e according to the rules applicable to the installation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn a five-zone system, the total pipe length increases quickly.\u003c\/p\u003e\n\u003cp\u003eThis precharge is therefore useful information, but it does not replace verifying the manufacturer’s maximum lengths and charging requirements.\u003c\/p\u003e\n\u003cp\u003eWe always calculate the actual configuration rather than assuming that “150 ft included” means any combination totaling 150 ft is automatically acceptable.\u003c\/p\u003e\n\u003ch3\u003eFive indoor units also mean five drains\u003c\/h3\u003e\n\u003cp\u003eEach indoor unit produces condensation in cooling mode.\u003c\/p\u003e\n\u003cp\u003eA five-zone installation therefore involves \u003cstrong\u003eproperly managing five drains\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhen a natural slope is available, we favor gravity drainage.\u003c\/p\u003e\n\u003cp\u003eWhen the building’s geometry makes this impossible, a condensate pump may be necessary.\u003c\/p\u003e\n\u003cp\u003eThe problems we seek to avoid are very concrete:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewater on the wall;\u003c\/li\u003e\n\u003cli\u003edrain backup;\u003c\/li\u003e\n\u003cli\u003enoisy pump;\u003c\/li\u003e\n\u003cli\u003eodors;\u003c\/li\u003e\n\u003cli\u003esigns of moisture;\u003c\/li\u003e\n\u003cli\u003eshutdowns caused by a safety device.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA neat piping layout is not a good installation if drainage has been neglected.\u003c\/p\u003e\n\u003ch3\u003e4,503 CFM outdoors: this unit needs to breathe\u003c\/h3\u003e\n\u003cp\u003eThe SENA-48HF-MOA moves up to approximately \u003cstrong\u003e4,502.8 CFM\u003c\/strong\u003e of air at the outdoor unit. The documentation also confirms a sound level of \u003cstrong\u003e65 dB\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit must therefore not be enclosed in a space that is too narrow.\u003c\/p\u003e\n\u003cp\u003eWe consider:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eclearances;\u003c\/li\u003e\n\u003cli\u003eproximity to a fence;\u003c\/li\u003e\n\u003cli\u003enearby walls;\u003c\/li\u003e\n\u003cli\u003evegetation;\u003c\/li\u003e\n\u003cli\u003eservice access;\u003c\/li\u003e\n\u003cli\u003ethe direction of the noise;\u003c\/li\u003e\n\u003cli\u003esnow;\u003c\/li\u003e\n\u003cli\u003edefrosting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAn outdoor heat pump needs substantial airflow to properly exchange energy with the surrounding air.\u003c\/p\u003e\n\u003ch3\u003eA 246.47 lb outdoor unit\u003c\/h3\u003e\n\u003cp\u003eThe stated weight of the outdoor unit is \u003cstrong\u003e246.47 lb\u003c\/strong\u003e, with dimensions of \u003cstrong\u003e37.48 × 16.34 × 52.48 in.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt is physically a substantial unit.\u003c\/p\u003e\n\u003cp\u003eThe support must therefore be selected accordingly, particularly in Quebec, where we must also consider:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003efreeze-thaw cycles;\u003c\/li\u003e\n\u003cli\u003esnow;\u003c\/li\u003e\n\u003cli\u003ewater produced during defrost cycles;\u003c\/li\u003e\n\u003cli\u003eground stability;\u003c\/li\u003e\n\u003cli\u003eservice access.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAt AirGreen, we avoid treating a unit of this size like a standard small wall-mounted compressor.\u003c\/p\u003e\n\u003ch3\u003e65 dB: the acoustic location matters\u003c\/h3\u003e\n\u003cp\u003eThe specified outdoor sound level is \u003cstrong\u003e65 dB\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe number alone does not fully describe how the noise is perceived.\u003c\/p\u003e\n\u003cp\u003eA unit placed in a very narrow passage between two walls may seem more noticeable than a unit installed in an open space.\u003c\/p\u003e\n\u003cp\u003eWe avoid whenever possible:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ebedroom windows;\u003c\/li\u003e\n\u003cli\u003epatios;\u003c\/li\u003e\n\u003cli\u003eenclosed courtyards;\u003c\/li\u003e\n\u003cli\u003ewalls that can strongly reflect noise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical supply: MCA of 37 A, MOP of 40 A\u003c\/h3\u003e\n\u003cp\u003eThe SENA-48HF-MOA operates on \u003cstrong\u003e208\/230 V single-phase\u003c\/strong\u003e, with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 37 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMOP: 40 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn some Montreal homes still equipped with a more limited electrical service, this information must be verified before ordering.\u003c\/p\u003e\n\u003cp\u003eA five-zone heat pump is not a device we recommend adding to a panel without checking the existing load.\u003c\/p\u003e\n\u003ch3\u003eBuilt-in diagnostics and leak detection\u003c\/h3\u003e\n\u003cp\u003eSenville documentation mentions \u003cstrong\u003eautomatic diagnostics and leak detection\u003c\/strong\u003e functions, designed to signal certain anomalies and facilitate maintenance. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn an installation with five zones, this function can be particularly useful because a problem does not always manifest itself identically in all the indoor units.\u003c\/p\u003e\n\u003cp\u003eA diagnostic code is nevertheless a starting point. A technician must still check the pressure, temperatures, communications, and electrical parameters before determining the cause of a failure.\u003c\/p\u003e\n\u003ch3\u003eMaintenance: at least five filters, five units to monitor\u003c\/h3\u003e\n\u003cp\u003eA five-zone heat pump offers considerable flexibility, but it also involves more indoor units to maintain.\u003c\/p\u003e\n\u003cp\u003eEach head has:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eits filters;\u003c\/li\u003e\n\u003cli\u003eits heat exchanger;\u003c\/li\u003e\n\u003cli\u003eits fan;\u003c\/li\u003e\n\u003cli\u003eits condensate pan;\u003c\/li\u003e\n\u003cli\u003eits drain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe particularly recommend:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eclean the filters regularly;\u003c\/li\u003e\n\u003cli\u003echeck the fans when airflow decreases;\u003c\/li\u003e\n\u003cli\u003emonitor the drains;\u003c\/li\u003e\n\u003cli\u003ekeep the air inlets clear;\u003c\/li\u003e\n\u003cli\u003ekeep the outdoor unit free of leaves and snow;\u003c\/li\u003e\n\u003cli\u003ecarry out a thorough cleaning when the buildup requires it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA very dirty head may behave differently from the other four and give the impression of a distribution problem when the actual cause is simply insufficient airflow.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a difference to clarify between the AirGreen specification sheet and the brochure\u003c\/h3\u003e\n\u003cp\u003eAirGreen’s data indicates a \u003cstrong\u003e10-10-0 manufacturer’s warranty\u003c\/strong\u003e, with the possibility of an additional warranty.\u003c\/p\u003e\n\u003cp\u003eThe attached brochure, for its part, indicates \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt also specifies that professional installation is required to maintain warranty coverage and the expected performance. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore recommend confirming at the time of quotation the exact warranty applicable to the combination sold, the registration requirements, and the service territory.\u003c\/p\u003e\n\u003ch3\u003eWhy this configuration may suit a large home in Montreal or on the South Shore\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE 5-zone R454B 48,000 BTU\u003c\/strong\u003e can be particularly suitable when a property:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003edoes not have ductwork;\u003c\/li\u003e\n\u003cli\u003econtains several enclosed rooms;\u003c\/li\u003e\n\u003cli\u003ehas three levels;\u003c\/li\u003e\n\u003cli\u003ehas a finished basement;\u003c\/li\u003e\n\u003cli\u003erequires several distribution points;\u003c\/li\u003e\n\u003cli\u003ehas limited outdoor space for several condensers;\u003c\/li\u003e\n\u003cli\u003equalifies for a pairing eligible for financial incentives.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt therefore combines several important characteristics:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e23 SEER2\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e11 HSPF2\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eheating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eapproximately \u003cstrong\u003e45,000 BTU at -8 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eapproximately \u003cstrong\u003e47,000 BTU at -15 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ecold-climate certification\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certification\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003epossibility of five zone controls\u003c\/li\u003e\n\u003cli\u003erebate indicated up to \u003cstrong\u003e5 400 $\u003c\/strong\u003e, subject to eligibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen we would instead consider several independent systems\u003c\/h3\u003e\n\u003cp\u003eA five-zone system is not always the best solution.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we may prioritize two or more independent systems when:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe zones have extremely different needs;\u003c\/li\u003e\n\u003cli\u003esome zones need to operate frequently in opposite modes;\u003c\/li\u003e\n\u003cli\u003eredundancy is a priority;\u003c\/li\u003e\n\u003cli\u003ethe refrigerant lines become excessively long;\u003c\/li\u003e\n\u003cli\u003ethe outdoor space can easily accommodate several units;\u003c\/li\u003e\n\u003cli\u003ethe building would be better served by several independent capacities.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA single large outdoor unit offers an obvious space-saving advantage, but it also concentrates all five zones around one machine.\u003c\/p\u003e\n\u003cp\u003eThis reality is part of the selection process.\u003c\/p\u003e\n\u003ch3\u003eWhy AirGreen treats a five-zone installation as an HVAC design project\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Climatisation \u0026amp; Chauffage\u003c\/strong\u003e, we believe that a five-zone system requires more than simply selecting five wall-mounted units.\u003c\/p\u003e\n\u003cp\u003eWe need to coordinate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003efive heating loads;\u003c\/li\u003e\n\u003cli\u003efive locations;\u003c\/li\u003e\n\u003cli\u003efive drains;\u003c\/li\u003e\n\u003cli\u003efive refrigerant lines;\u003c\/li\u003e\n\u003cli\u003ecommunications;\u003c\/li\u003e\n\u003cli\u003ethe electrical circuit;\u003c\/li\u003e\n\u003cli\u003ethe outdoor unit;\u003c\/li\u003e\n\u003cli\u003eclearances;\u003c\/li\u003e\n\u003cli\u003esupport;\u003c\/li\u003e\n\u003cli\u003ecommissioning;\u003c\/li\u003e\n\u003cli\u003eeligibility for rebates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis coordination is what transforms a collection of equipment into a true \u003cstrong\u003emulti-zone HVAC\u003c\/strong\u003e system.\u003c\/p\u003e\n\u003cp\u003eA properly configured 48,000 BTU SENVILLE can provide excellent comfort control across multiple areas. Conversely, poorly distributed capacities can result in one zone being overheated, another insufficiently cooled, and a third operating unnecessarily.\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen quote for your SENVILLE 5-Zone 48,000 BTU system\u003c\/h3\u003e\n\u003cp\u003eAre you considering a \u003cstrong\u003eSENVILLE R454B 48,000 BTU 5-zone heat pump\u003c\/strong\u003e for a house, duplex, multi-unit building, or commercial space?\u003c\/p\u003e\n\u003cp\u003eContact \u003cstrong\u003eAirGreen\u003c\/strong\u003e for a complete assessment. We can analyze the needs of each of the five zones, select the appropriate indoor units, check the electrical supply, plan the piping and drainage, determine the outdoor unit location, and verify applicable financial incentives.\u003c\/p\u003e\n\u003cp\u003eWe carry out \u003cstrong\u003emulti-zone heat pump installations in Montreal, Laval, Longueuil, on the North Shore, South Shore, and in Montérégie\u003c\/strong\u003e, with particular attention to sizing, winter efficiency, and installation quality.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"9 + 9 + 9 + 9 + 9","offer_id":56201214165284,"sku":null,"price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_5_ZONES_SENVILLE_R454B_48000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789057877"},{"product_id":"climatiseur-cassette-de-plafond-senville-sena-r454b-9000-btu","title":"SENVILLE SENA R454B Ceiling Cassette Air Conditioner | 9000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 9,000 BTU ceiling cassette that frees up the walls while providing heating and cooling down to -30 °C\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eIn some rooms, the best place for an air-conditioning unit simply is not on a wall. Large windows, full-height cabinets, a commercial layout, a minimalist office design, or a room where every wall surface is already being used can make a conventional wall-mounted head difficult to integrate. This is precisely the type of project where the \u003cstrong\u003eSENVILLE SENA R454B 9,000 BTU ceiling cassette air conditioner\u003c\/strong\u003e becomes particularly appealing.\u003c\/p\u003e\n\u003cp\u003eThe combination presented by AirGreen pairs the \u003cstrong\u003eSENA-09HF-OG\u003c\/strong\u003e outdoor unit with the \u003cstrong\u003eSENA-09HF-ICG\u003c\/strong\u003e indoor cassette, with reference \u003cstrong\u003eAHRI 215735304\u003c\/strong\u003e. This is not merely an air conditioner: Senville documentation clearly describes the SENA-09HF\/IC as a \u003cstrong\u003eceiling cassette heat pump\u003c\/strong\u003e capable of both cooling and heating. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we consider this format for residential and commercial projects in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e where the goal is to achieve more central air distribution while avoiding a highly visible wall-mounted unit.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specifications sheet lists the following features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eRated cooling capacity: 9,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENA-09HF-OG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCassette indoor unit: SENA-09HF-ICG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735304\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR®: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCold Climate: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 22.6\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 14.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2: 12.1\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating down to -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWiFi: optional\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 220 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePiping: 1\/4 in – 3\/8 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 15 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 15 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDehumidification: approximately 1.86 pt\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor sound level: 26 to 42.5 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound level: 55 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe manufacturer's documentation confirms \u003cstrong\u003e208\/230 V single-phase, 60 Hz\u003c\/strong\u003e power, a \u003cstrong\u003eSEER2 of 22.6\u003c\/strong\u003e, and an \u003cstrong\u003eEER2 of 14\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy choose a ceiling cassette rather than a wall-mounted heat pump?\u003c\/h3\u003e\n\u003cp\u003eThe most important difference concerns air distribution.\u003c\/p\u003e\n\u003cp\u003eA wall-mounted unit generally projects its airflow from one side of the room. A cassette is installed in the ceiling and can distribute air from a much more central position.\u003c\/p\u003e\n\u003cp\u003eThis becomes interesting in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea large bedroom with little available wall space;\u003c\/li\u003e\n\u003cli\u003ea professional office;\u003c\/li\u003e\n\u003cli\u003ea meeting room;\u003c\/li\u003e\n\u003cli\u003ea retail store;\u003c\/li\u003e\n\u003cli\u003ea reception area;\u003c\/li\u003e\n\u003cli\u003ea room with extensive glazing;\u003c\/li\u003e\n\u003cli\u003ea basement with a suspended ceiling;\u003c\/li\u003e\n\u003cli\u003ecertain additions or renovated spaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn our HVAC projects, choosing a cassette is particularly relevant when a wall-mounted unit would require accepting a poor location simply because no other wall is available.\u003c\/p\u003e\n\u003cp\u003eThe cassette completely transforms this constraint: \u003cstrong\u003ethe ceiling becomes the main installation area\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eA compact cassette measuring just 22.44 in × 22.44 in\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e22.44 in × 22.44 in × 9.65 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e35.27 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis square format is particularly interesting for installation in certain suspended ceilings or ceilings that allow the unit to be recessed.\u003c\/p\u003e\n\u003cp\u003eHowever, the visible dimensions do not tell the whole story.\u003c\/p\u003e\n\u003cp\u003eA cassette also requires available space \u003cstrong\u003eabove the ceiling\u003c\/strong\u003e for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe unit body;\u003c\/li\u003e\n\u003cli\u003ethe refrigerant connections;\u003c\/li\u003e\n\u003cli\u003ethe drain;\u003c\/li\u003e\n\u003cli\u003ethe wiring;\u003c\/li\u003e\n\u003cli\u003efuture access for servicing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is a major difference compared with a wall-mounted head, which is much simpler to install when the ceiling is inaccessible.\u003c\/p\u003e\n\u003ch3\u003eThe dropped ceiling must be inspected before promising installation.\u003c\/h3\u003e\n\u003cp\u003eThis is one of the points we check as a priority at AirGreen.\u003c\/p\u003e\n\u003cp\u003eA room may seem ideal for a cassette from the floor, but the space above the ceiling may contain:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ejoists;\u003c\/li\u003e\n\u003cli\u003eventilation ducts;\u003c\/li\u003e\n\u003cli\u003eplumbing;\u003c\/li\u003e\n\u003cli\u003ecables;\u003c\/li\u003e\n\u003cli\u003ebeams;\u003c\/li\u003e\n\u003cli\u003estructural elements;\u003c\/li\u003e\n\u003cli\u003esignificant insulation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe must therefore verify that the \u003cstrong\u003e22.44-inch square, 9.65-inch-high\u003c\/strong\u003e unit can actually fit without compromising the structure.\u003c\/p\u003e\n\u003cp\u003eIn a finished drywall ceiling, preparation may be more complex than in a commercial suspended ceiling.\u003c\/p\u003e\n\u003ch3\u003e353 CFM: sufficient airflow for a unit rated at only 9,000 BTU\u003c\/h3\u003e\n\u003cp\u003eThe brochure lists four indoor airflow rates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTurbo: 353.2 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHigh speed: 312.0 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMedium speed: 264.9 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLow speed: 182.5 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe sound level varies accordingly, from \u003cstrong\u003e42.5 dB(A)\u003c\/strong\u003e in Turbo mode to just \u003cstrong\u003e26 dB(A)\u003c\/strong\u003e at low speed. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis airflow modulation capability is particularly interesting for a cassette.\u003c\/p\u003e\n\u003cp\u003eWhen the room needs to be brought back to temperature quickly, the airflow can increase. Once the temperature has stabilized, the system can slow down and become much quieter.\u003c\/p\u003e\n\u003cp\u003eFor an office or bedroom, the stated minimum level of \u003cstrong\u003e26 dB(A)\u003c\/strong\u003e is a tangible advantage.\u003c\/p\u003e\n\u003ch3\u003eA much wider inverter capacity than the 9,000 BTU figure\u003c\/h3\u003e\n\u003cp\u003eThe unit’s marketed capacity is \u003cstrong\u003e9,000 BTU for cooling\u003c\/strong\u003e, but the brochure shows a modulation range of:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3,700 to 13,600 BTU\/h in cooling mode\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn heating mode, the rated capacity is \u003cstrong\u003e10,000 BTU\/h\u003c\/strong\u003e, with a range from:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e5,100 to 15,700 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is one of the most important pieces of information on this specification sheet.\u003c\/p\u003e\n\u003cp\u003eAn inverter heat pump does not operate constantly at 9,000 BTU. It adjusts its output according to demand.\u003c\/p\u003e\n\u003cp\u003eIn a room that is gradually approaching the desired temperature, the system can reduce its output instead of stopping abruptly and restarting a few minutes later.\u003c\/p\u003e\n\u003cp\u003eThis modulation contributes to a more stable temperature and can improve comfort, particularly when the unit is properly sized.\u003c\/p\u003e\n\u003ch3\u003eSEER2 22.6 and HSPF2-4 of 12.1\u003c\/h3\u003e\n\u003cp\u003eThe Senville documentation confirms:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 22.6\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 14\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-4: 12.1\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-5: 9.3\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal COP: 4.0\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese values are particularly interesting for a small ceiling cassette that must provide both cooling and heating.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSEER2\u003c\/strong\u003e measures seasonal cooling efficiency. The \u003cstrong\u003eHSPF2\u003c\/strong\u003e is more useful for comparing seasonal heating performance.\u003c\/p\u003e\n\u003cp\u003eIn Quebec, this second figure is particularly important because the heat pump can operate during a large part of the fall, winter, and spring.\u003c\/p\u003e\n\u003ch3\u003eAt -15 °C, the heating capacity still exceeds 9,000 BTU.\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e9,700 BTU\/h at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e11,000 BTU\/h at -15 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e4,200 BTU\/h maximum at -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe stated COP is approximately \u003cstrong\u003e2.63 at -8 °C\u003c\/strong\u003e and \u003cstrong\u003e1.02 at -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThese values are very useful for understanding the cassette’s actual performance in winter.\u003c\/p\u003e\n\u003cp\u003eThe system can operate down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, which is also confirmed by Senville documentation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBut the available capacity changes significantly with temperature.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-15 °C\u003c\/strong\u003e, the AirGreen specifications still indicate \u003cstrong\u003e11,000 BTU\/h\u003c\/strong\u003e, which is higher than the 9,000 BTU nominal cooling capacity.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-30 °C\u003c\/strong\u003e, the maximum capacity drops to approximately \u003cstrong\u003e4,200 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhy “operates at -30 °C” never means “full capacity at -30 °C”\u003c\/h3\u003e\n\u003cp\u003eThis is an important distinction in all our \u003cstrong\u003eheat pump projects in Montreal, Laval, Longueuil, on the South Shore, and on the North Shore\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA heat pump can continue producing heat at -30 °C without being able to cover all of the room’s heat loss on its own.\u003c\/p\u003e\n\u003cp\u003eIf the space loses 8,000 BTU\/h during extreme cold and the cassette can provide only about 4,200 BTU\/h, a supplementary heating source must cover the gap.\u003c\/p\u003e\n\u003cp\u003eWe therefore prefer to analyze:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ecapacity at -8 °C;\u003c\/li\u003e\n\u003cli\u003ecapacity at -15 °C;\u003c\/li\u003e\n\u003cli\u003ecapacity at -30 °C;\u003c\/li\u003e\n\u003cli\u003ethe room’s actual heat loss.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis method provides a much more realistic picture than simply stating a minimum temperature on the specifications sheet.\u003c\/p\u003e\n\u003ch2\u003eCeiling installation, drainage, and R-454B: the details that determine whether a cassette will truly be successful\u003c\/h2\u003e\n\u003ch3\u003eDrainage is even more important with a ceiling cassette.\u003c\/h3\u003e\n\u003cp\u003eA cassette produces condensate during cooling and dehumidification.\u003c\/p\u003e\n\u003cp\u003eThe brochure indicates moisture extraction of \u003cstrong\u003e0.88 liters per hour\u003c\/strong\u003e, which corresponds to approximately \u003cstrong\u003e1.86 US pints per hour\u003c\/strong\u003e, consistent with the AirGreen specifications. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eUnlike some wall-mounted installations where the drain can simply exit directly outdoors with a natural slope, a cassette is often installed in the center or deeper inside the building.\u003c\/p\u003e\n\u003cp\u003eCareful planning is therefore required:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe drain route;\u003c\/li\u003e\n\u003cli\u003ethe slope;\u003c\/li\u003e\n\u003cli\u003ethe outlet point;\u003c\/li\u003e\n\u003cli\u003eaccessibility;\u003c\/li\u003e\n\u003cli\u003ethe risk of blockage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWith this type of product, poorly designed drainage can cause ceiling damage long before a refrigerant problem appears.\u003c\/p\u003e\n\u003ch3\u003eA typical scenario in which we favor a cassette\u003c\/h3\u003e\n\u003cp\u003eLet’s consider a large renovated bedroom with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ebay window on one wall;\u003c\/li\u003e\n\u003cli\u003ewardrobe on a second;\u003c\/li\u003e\n\u003cli\u003eheadboard on a third;\u003c\/li\u003e\n\u003cli\u003efurniture on the fourth.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA wall-mounted head could technically be installed, but no location would provide truly satisfactory air distribution.\u003c\/p\u003e\n\u003cp\u003eA cassette installed closer to the center of the ceiling can then free up the walls and distribute the air more effectively.\u003c\/p\u003e\n\u003cp\u003eIn a commercial space, the logic is similar: the unit can be integrated into the ceiling, avoiding the use of wall space reserved for shelves, signs, or displays.\u003c\/p\u003e\n\u003ch3\u003eAnother situation in which we do not recommend a cassette\u003c\/h3\u003e\n\u003cp\u003eThe cassette is not automatically superior.\u003c\/p\u003e\n\u003cp\u003eIn a home with no accessible space above the ceiling, where opening the drywall would require extensive work, a wall-mounted unit may become much more economical and practical.\u003c\/p\u003e\n\u003cp\u003eWe therefore always assess the total installation cost, not just the equipment price.\u003c\/p\u003e\n\u003ch3\u003eR-454B and precharge up to 25 feet\u003c\/h3\u003e\n\u003cp\u003eThe system operates with \u003cstrong\u003eR-454B\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSenville specifies that it is precharged for piping runs of up to \u003cstrong\u003e25 feet\u003c\/strong\u003e and that an installation with a 50-foot set requires additional refrigerant to be added by the installer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates piping of:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThese diameters are particularly useful in a replacement project, but we never assume that old lines can be reused automatically.\u003c\/p\u003e\n\u003cp\u003eWe check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003etheir diameter;\u003c\/li\u003e\n\u003cli\u003etheir condition;\u003c\/li\u003e\n\u003cli\u003etheir length;\u003c\/li\u003e\n\u003cli\u003ethe old refrigerant;\u003c\/li\u003e\n\u003cli\u003ethe route;\u003c\/li\u003e\n\u003cli\u003eaccessibility.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe cassette often requires more refrigerant-system planning\u003c\/h3\u003e\n\u003cp\u003eA wall-mounted unit installed on an exterior wall may allow for a very short refrigerant line run.\u003c\/p\u003e\n\u003cp\u003eA cassette can be installed in the middle of a room.\u003c\/p\u003e\n\u003cp\u003eThe actual distance to the outside may therefore be much longer.\u003c\/p\u003e\n\u003cp\u003eWe need to plan the conduits before opening the ceiling to avoid creating an unnecessarily complex route.\u003c\/p\u003e\n\u003ch3\u003e208\/230 V, MCA 15 A, and MOP 15 A\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer’s documentation states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e208\/230 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003esingle-phase;\u003c\/li\u003e\n\u003cli\u003e60 Hz;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 15 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003emaximum protection: 15 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003econnection wiring \u003cstrong\u003e14\/4 AWG\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese data are consistent with the AirGreen specification sheet.\u003c\/p\u003e\n\u003cp\u003eBefore installation, however, the electrical supply must be verified based on the equipment actually delivered and the requirements applicable to the job site.\u003c\/p\u003e\n\u003ch3\u003eOutdoor unit dimensions and sound level\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e31.69 in × 12.99 in × 21.81 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e72.75 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIts stated sound level is \u003cstrong\u003e55 dB(A)\u003c\/strong\u003e, and its maximum outdoor airflow is approximately \u003cstrong\u003e1,471.5 CFM\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a heat pump of this capacity, the outdoor unit remains relatively compact.\u003c\/p\u003e\n\u003cp\u003eThis facilitates certain projects on properties where lateral space is limited.\u003c\/p\u003e\n\u003ch3\u003eThe outdoor unit’s location should not be chosen solely to reduce piping length\u003c\/h3\u003e\n\u003cp\u003eEven at 55 dB(A), we consider:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewindows;\u003c\/li\u003e\n\u003cli\u003ebedrooms;\u003c\/li\u003e\n\u003cli\u003ethe terrace;\u003c\/li\u003e\n\u003cli\u003eneighbors;\u003c\/li\u003e\n\u003cli\u003eproperty lines;\u003c\/li\u003e\n\u003cli\u003esnow accumulation;\u003c\/li\u003e\n\u003cli\u003eservice access.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe best location is generally a compromise between acoustics, aesthetics, accessibility, and piping length.\u003c\/p\u003e\n\u003ch3\u003eAutomatic vertical louvers, manual horizontal louvers\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003evertical louvers: automatic\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ehorizontal louvers: manual\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis characteristic must be taken into account during commissioning.\u003c\/p\u003e\n\u003cp\u003eThe initial orientation of the outlets should be adjusted to distribute air throughout the room rather than concentrating the airflow in a single direction.\u003c\/p\u003e\n\u003cp\u003eWith a cassette, this step can have a significant impact on perceived comfort.\u003c\/p\u003e\n\u003ch3\u003eOptional WiFi\u003c\/h3\u003e\n\u003cp\u003eWiFi is listed as \u003cstrong\u003eoptional\u003c\/strong\u003e on the AirGreen product sheet.\u003c\/p\u003e\n\u003cp\u003eFor some commercial projects, this feature is particularly useful, especially for changing the setpoint remotely or managing operating schedules.\u003c\/p\u003e\n\u003cp\u003eIn a residence, it may also be useful when the cassette serves a room used only during certain periods.\u003c\/p\u003e\n\u003cp\u003eWe simply recommend confirming this option when requesting a quote rather than assuming it is automatically included.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR® and Cold Climate\u003c\/h3\u003e\n\u003cp\u003eSenville’s documentation clearly presents this cassette as \u003cstrong\u003eENERGY STAR®\u003c\/strong\u003e certified and capable of heating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product sheet also identifies it as \u003cstrong\u003eCold Climate\u003c\/strong\u003e, with reference \u003cstrong\u003eAHRI 215735304\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis positions the cassette not only as an aesthetically pleasing air-conditioning unit, but as a true \u003cstrong\u003eheat pump for Quebec’s climate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eSelf-diagnostics and leak detection\u003c\/h3\u003e\n\u003cp\u003eSenville mentions a \u003cstrong\u003eself-diagnostic and leak detection system\u003c\/strong\u003e intended to facilitate the identification of certain problems. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis function does not replace \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA cassette requires regular attention to, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003efilters;\u003c\/li\u003e\n\u003cli\u003eheat exchangers;\u003c\/li\u003e\n\u003cli\u003eair outlets;\u003c\/li\u003e\n\u003cli\u003econdensate drain;\u003c\/li\u003e\n\u003cli\u003epump or drainage system where applicable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eService access must be planned from the installation stage. A cassette that is perfectly recessed but impossible to service properly quickly becomes a poor choice.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a discrepancy to clarify between the AirGreen product sheet and the brochure\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years compressor – 10 years parts – 0 years labour\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith the possibility of an additional warranty.\u003c\/p\u003e\n\u003cp\u003eThe attached Senville documentation instead indicates \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical table repeats the same \u003cstrong\u003e10-year compressor \/ 5-year parts\u003c\/strong\u003e coverage. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIf 10-year parts coverage is offered through a particular program, distributor, or AirGreen registration, this condition should be clearly specified on the quote.\u003c\/p\u003e\n\u003ch3\u003eThe mistakes we seek to avoid with a ceiling cassette\u003c\/h3\u003e\n\u003ch4\u003eChoosing a cassette without inspecting the ceiling\u003c\/h4\u003e\n\u003cp\u003eVisible dimensions are not enough. Joists and mechanical services above the ceiling may prevent installation.\u003c\/p\u003e\n\u003ch4\u003eInstalling the cassette without planning the drain\u003c\/h4\u003e\n\u003cp\u003eImproper condensate drainage can cause ceiling damage.\u003c\/p\u003e\n\u003ch4\u003eOversizing to “cool faster”\u003c\/h4\u003e\n\u003cp\u003eAn oversized capacity does not automatically provide better comfort and can impair operation at partial load.\u003c\/p\u003e\n\u003ch4\u003eConfusing 9,000 nominal BTU with fixed capacity\u003c\/h4\u003e\n\u003cp\u003eThe cooling modulation range is from \u003cstrong\u003e3,700 to 13,600 BTU\/h\u003c\/strong\u003e, while the heating range reaches \u003cstrong\u003e5,100 to 15,700 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eForgetting about access for maintenance\u003c\/h4\u003e\n\u003cp\u003eA cassette must be serviceable without having to dismantle a large portion of the ceiling.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for a SENVILLE 9,000 BTU cassette\u003c\/h3\u003e\n\u003cp\u003eA ceiling cassette requires more coordination than a standard wall-mounted heat pump.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we assess, among other things:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe room’s heating and cooling load;\u003c\/li\u003e\n\u003cli\u003ethe available ceiling space;\u003c\/li\u003e\n\u003cli\u003ethe structure;\u003c\/li\u003e\n\u003cli\u003ethe refrigerant line routing;\u003c\/li\u003e\n\u003cli\u003edrainage;\u003c\/li\u003e\n\u003cli\u003eelectrical supply;\u003c\/li\u003e\n\u003cli\u003ethe outdoor unit location;\u003c\/li\u003e\n\u003cli\u003eair distribution;\u003c\/li\u003e\n\u003cli\u003eaccess for maintenance;\u003c\/li\u003e\n\u003cli\u003eWiFi options and controls.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWe carry out HVAC projects in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e, in both residential properties and commercial spaces where a ceiling cassette is a more logical solution than a wall-mounted unit.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA R454B 9,000 BTU\u003c\/strong\u003e combines a highly discreet indoor design, a \u003cstrong\u003eSEER2 of 22.6\u003c\/strong\u003e, an \u003cstrong\u003eHSPF2-4 of 12.1\u003c\/strong\u003e, inverter modulation, a minimum sound level of \u003cstrong\u003e26 dB(A)\u003c\/strong\u003e, R-454B, and heating operation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e. The manufacturer’s documentation confirms all of these key features. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen for a quote on the SENVILLE SENA R454B 9,000 BTU ceiling cassette air conditioner, to check whether your ceiling can accommodate this type of unit and to plan a complete HVAC installation in Montreal, Laval, Longueuil, the South Shore, or the North Shore.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56120175558948,"sku":"SENA-09HF-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_CASSETTE_DE_PLAFOND_SENVILLE_AURA_9000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789060301"},{"product_id":"climatiseur-cassette-de-plafond-senville-sena-r454b-12000-btu","title":"SENVILLE SENA R454B Ceiling Cassette Air Conditioner | 12000 BTU","description":"\u003ch2\u003eA 12,000 BTU ceiling cassette that frees up the walls while providing cold-climate heating down to -30 °C\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA 12,000 BTU R454B ceiling cassette\u003c\/strong\u003e is intended for projects where a conventional wall-mounted unit may not be the best solution. In a large open room, an office, a commercial space, a meeting room, a condo with few available walls, or a room where aesthetics are especially important, integrating the indoor unit into the ceiling can improve both air distribution and the use of space.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, when we prepare a \u003cstrong\u003eceiling cassette installation in Montreal, Laval, Longueuil, on the South Shore or the North Shore\u003c\/strong\u003e, we look at much more than the 12,000 BTU capacity. A cassette requires technical space above the ceiling, proper condensate drain planning, and future access for maintenance. When these conditions are met, the result can be particularly clean: the unit occupies very little visible space, and air is distributed from the ceiling rather than from a wall.\u003c\/p\u003e\n\u003cp\u003eThe combination presented by AirGreen uses:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eoutdoor unit: SENA-12HF-OG\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eindoor unit: SENA-12HF-ICG\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAHRI: 215735305\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eENERGY STAR ID: 3630052\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003enominal cooling capacity of \u003cstrong\u003e12,000 BTU\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003erefrigerant \u003cstrong\u003eR-454B\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eheating operation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSEER2: 22.2\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEER2: 12.5\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSPF2: 11.6\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certification;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCold Climate\u003c\/strong\u003e qualification;\u003c\/li\u003e\n\u003cli\u003eWiFi available \u003cstrong\u003eas an option\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Senville brochure confirms that this is a \u003cstrong\u003e12,000 BTU ceiling cassette heat pump\u003c\/strong\u003e, ENERGY STAR certified, designed to provide heating and cooling and advertised to operate in heating mode down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy choose a cassette rather than a wall-mounted heat pump?\u003c\/h3\u003e\n\u003cp\u003eThe first difference is visually obvious: the indoor unit is integrated into the ceiling.\u003c\/p\u003e\n\u003cp\u003eThe cassette body measures approximately \u003cstrong\u003e22.44 × 22.44 × 9.65 in\u003c\/strong\u003e and weighs approximately \u003cstrong\u003e35.27 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis configuration becomes appealing when the available walls are occupied by:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003elarge windows;\u003c\/li\u003e\n\u003cli\u003ecabinets;\u003c\/li\u003e\n\u003cli\u003eartworks or architectural features;\u003c\/li\u003e\n\u003cli\u003eshelves;\u003c\/li\u003e\n\u003cli\u003ecommercial furniture;\u003c\/li\u003e\n\u003cli\u003edoors or openings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt also makes it possible to position the unit closer to the center of the area being treated in certain projects.\u003c\/p\u003e\n\u003cp\u003eIn a rectangular room, a wall-mounted unit installed at one end must project its air over a long distance. A properly positioned cassette can distribute air from a more central location, which can help improve temperature uniformity.\u003c\/p\u003e\n\u003ch3\u003eThe essential technical specifications\u003c\/h3\u003e\n\u003cdiv class=\"group TyagGW_tableContainer TyagGW_tableContainerWithTableOfContents\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eFeature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSENVILLE SENA 12,000 BTU Cassette\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal cooling\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3,800 to 15,100 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal heating\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e5,300 to 16,200 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSEER2\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e22,2\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEER2\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e12,5\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2-4\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e11,6\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHSPF2-5\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e8,9\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal COP\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3,7\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum outdoor heating temperature\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e-30 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eR-454B\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMCA\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e15 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOP\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e15 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePiping\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe official documentation confirms modulation ranges of \u003cstrong\u003e3,800 to 15,100 BTU in cooling\u003c\/strong\u003e and \u003cstrong\u003e5,300 to 16,200 BTU in heating\u003c\/strong\u003e, as well as a region 4 HSPF2 of 11.6 and a nominal COP of 3.7. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis variable capacity is important. The unit does not operate constantly at 12,000 BTU. When the thermal load is low, the inverter compressor can reduce its output; when demand increases, it can rise above the nominal capacity under certain conditions.\u003c\/p\u003e\n\u003ch3\u003eSEER2 of 22.2: a good efficiency level for a ceiling cassette\u003c\/h3\u003e\n\u003cp\u003eThe brochure lists a \u003cstrong\u003eSEER2 of 22.2\u003c\/strong\u003e and an \u003cstrong\u003eEER2 of 12.5\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis represents an interesting level of efficiency for a cassette system, particularly when compared with older central air conditioners or on\/off equipment.\u003c\/p\u003e\n\u003cp\u003eSenville also advertises annual savings of up to 40% under certain comparison conditions. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, we prefer to rely on technical ratings rather than promise a precise percentage on the electricity bill. Actual savings always depend on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe system being replaced;\u003c\/li\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003ethe requested temperature;\u003c\/li\u003e\n\u003cli\u003ethe number of hours of use;\u003c\/li\u003e\n\u003cli\u003ewindows;\u003c\/li\u003e\n\u003cli\u003esolar exposure;\u003c\/li\u003e\n\u003cli\u003eoccupant habits.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHeating down to -30 °C: look at the available BTUs, not just the minimum temperature\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate the following capacities:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10,000 BTU\/h at -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e11,500 BTU\/h at -15 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eapproximately \u003cstrong\u003e4,300 BTU\/h at -30 °C\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe stated COP is approximately \u003cstrong\u003e2.74 at -8 °C\u003c\/strong\u003e and \u003cstrong\u003e1.04 at -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThese figures are essential for understanding actual performance.\u003c\/p\u003e\n\u003cp\u003eThe brochure confirms that the system can operate in heating mode down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e But “operates at -30 °C” does not mean “still delivers 12,000 BTU at -30 °C.”\u003c\/p\u003e\n\u003cp\u003eAt this extreme temperature, the available capacity decreases significantly.\u003c\/p\u003e\n\u003cp\u003eIn an installation in \u003cstrong\u003eMontréal, Laval, or Longueuil\u003c\/strong\u003e, we must therefore compare the cassette’s heating capacity with the room’s heat loss. In many buildings, supplemental heating remains relevant during cold snaps.\u003c\/p\u003e\n\u003ch3\u003eA Cold Climate cassette, not just a ceiling air conditioner\u003c\/h3\u003e\n\u003cp\u003eThe title “cassette air conditioner” may suggest that it is primarily a summer appliance.\u003c\/p\u003e\n\u003cp\u003eThe reality is different.\u003c\/p\u003e\n\u003cp\u003eSenville presents this model as a \u003cstrong\u003ecold-climate heat pump\u003c\/strong\u003e and indicates operation down to -30°C. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis makes it an appealing solution for a homeowner or business that wants to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ecool in summer;\u003c\/li\u003e\n\u003cli\u003eheat in spring and fall;\u003c\/li\u003e\n\u003cli\u003econtinue using the heat pump for much of the winter;\u003c\/li\u003e\n\u003cli\u003ereduce the use of supplemental electric heating when conditions allow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAirflow of up to approximately 418 CFM\u003c\/h3\u003e\n\u003cp\u003eThe documentation indicates four airflow levels:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e417.9 CFM in Turbo mode\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e364.9 CFM at high speed\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e306.1 CFM at medium speed\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e194.2 CFM at low speed\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis fan modulation accompanies that of the compressor.\u003c\/p\u003e\n\u003cp\u003eAs the room approaches its setpoint, the unit can operate more quietly. When a high demand arises, the fan increases its airflow to distribute the available capacity more effectively.\u003c\/p\u003e\n\u003ch3\u003e27.5 dB(A) at low speed: an advantage for offices and living spaces\u003c\/h3\u003e\n\u003cp\u003eIndoor sound levels range from approximately \u003cstrong\u003e27.5 to 46 dB(A)\u003c\/strong\u003e, depending on fan speed. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a ceiling cassette, this is particularly useful.\u003c\/p\u003e\n\u003cp\u003eThe unit is generally located above the occupied area, but its low-speed operation can remain discreet in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ean office;\u003c\/li\u003e\n\u003cli\u003ea meeting room;\u003c\/li\u003e\n\u003cli\u003ea living room;\u003c\/li\u003e\n\u003cli\u003ea bedroom suitable for a cassette;\u003c\/li\u003e\n\u003cli\u003ea small retail business;\u003c\/li\u003e\n\u003cli\u003ea professional space receiving clients.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHowever, placement remains important. A cassette installed directly above a workstation or an area where someone sits for hours must be configured carefully to avoid an uncomfortable draft.\u003c\/p\u003e\n\u003ch3\u003eAutomatic louvers and airflow adjustment\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates \u003cstrong\u003eautomatic vertical louver control\u003c\/strong\u003e, while horizontal adjustment is listed as \u003cstrong\u003emanual\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis is a practical detail to plan for during commissioning.\u003c\/p\u003e\n\u003cp\u003eWe aim to direct the airflow so that it uses the room’s geometry rather than sending air directly at occupants.\u003c\/p\u003e\n\u003ch3\u003eDehumidification: approximately 1.45 L\/h\u003c\/h3\u003e\n\u003cp\u003eSenville documentation indicates a moisture removal capacity of \u003cstrong\u003e1.45 L\/h\u003c\/strong\u003e, or approximately \u003cstrong\u003e3.06 pints per hour\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDuring humid periods in Greater Montreal, dehumidification contributes significantly to comfort.\u003c\/p\u003e\n\u003cp\u003eA room at 23°C with high humidity may feel much less comfortable than a room at the same temperature with better humidity control.\u003c\/p\u003e\n\u003cp\u003eThis also means that drain installation is never a secondary detail.\u003c\/p\u003e\n\u003ch2\u003eWhat we check at AirGreen before installing a SENVILLE 12,000 BTU cassette\u003c\/h2\u003e\n\u003ch3\u003eThe space above the ceiling is the first constraint\u003c\/h3\u003e\n\u003cp\u003eThe inner body is approximately \u003cstrong\u003e9.65 in. high\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBut having exactly 9.65 inches available is not enough.\u003c\/p\u003e\n\u003cp\u003eWe must also plan for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003erefrigerant piping;\u003c\/li\u003e\n\u003cli\u003edrainage;\u003c\/li\u003e\n\u003cli\u003ecables;\u003c\/li\u003e\n\u003cli\u003econnections;\u003c\/li\u003e\n\u003cli\u003erequired clearances;\u003c\/li\u003e\n\u003cli\u003efuture access for maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThat is why we inspect the structure before confirming that a cassette can be installed in the desired location.\u003c\/p\u003e\n\u003cp\u003eA beam, joist, existing ventilation duct, or plumbing can completely change the ideal position.\u003c\/p\u003e\n\u003ch3\u003eA common job-site scenario: a visually perfect ceiling, but cluttered above\u003c\/h3\u003e\n\u003cp\u003eIn \u003cstrong\u003eceiling cassette\u003c\/strong\u003e projects, we regularly encounter a situation where the geometric center of the room seems like the obvious location.\u003c\/p\u003e\n\u003cp\u003eWhen we inspect the service space, we sometimes find:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea structural beam;\u003c\/li\u003e\n\u003cli\u003ea large duct;\u003c\/li\u003e\n\u003cli\u003ea column;\u003c\/li\u003e\n\u003cli\u003ewater pipes;\u003c\/li\u003e\n\u003cli\u003ecables;\u003c\/li\u003e\n\u003cli\u003einsufficient clearance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMoving the cassette a few feet can then avoid much more extensive work without genuinely compromising air distribution.\u003c\/p\u003e\n\u003cp\u003eThis is a good example of the difference between selecting equipment and designing its installation.\u003c\/p\u003e\n\u003ch3\u003eDrainage must be planned before closing the ceiling\u003c\/h3\u003e\n\u003cp\u003eWith dehumidification capacity of up to approximately 1.45 L\/h, the condensate must be drained reliably.\u003c\/p\u003e\n\u003cp\u003eOn a wall-mounted unit, the drain is often fairly visible and accessible.\u003c\/p\u003e\n\u003cp\u003eWith a cassette, a significant portion of the installation is concealed.\u003c\/p\u003e\n\u003cp\u003eWe must therefore pay particular attention to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eslope;\u003c\/li\u003e\n\u003cli\u003efinal discharge;\u003c\/li\u003e\n\u003cli\u003eaccessibility;\u003c\/li\u003e\n\u003cli\u003edrain insulation;\u003c\/li\u003e\n\u003cli\u003eleak protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA condensate problem above a finished ceiling can cause far more damage than a simple improperly positioned outdoor drain.\u003c\/p\u003e\n\u003ch3\u003eR-454B precharge for approximately 25 ft\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer states that the system uses \u003cstrong\u003eR-454B\u003c\/strong\u003e and is precharged for a line length of up to \u003cstrong\u003e25 ft\u003c\/strong\u003e. A 50-foot installation requires refrigerant to be added on site. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical data sheet indicates a charge of approximately \u003cstrong\u003e35.27 oz\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe piping used is \u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eR-454B is an A2L refrigerant. The tools, commissioning procedures, and handling methods must therefore be adapted.\u003c\/p\u003e\n\u003ch3\u003eProper evacuation remains essential\u003c\/h3\u003e\n\u003cp\u003eThe fact that an outdoor unit is precharged does not mean that the lines are ready for immediate use.\u003c\/p\u003e\n\u003cp\u003eThe lines installed on site initially contain air and moisture.\u003c\/p\u003e\n\u003cp\u003eBefore releasing the refrigerant into the circuit, we must properly complete the preparation and evacuation procedures.\u003c\/p\u003e\n\u003cp\u003eThis step helps prevent:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ecircuit contamination;\u003c\/li\u003e\n\u003cli\u003ereduced performance;\u003c\/li\u003e\n\u003cli\u003eabnormal pressure;\u003c\/li\u003e\n\u003cli\u003elong-term problems;\u003c\/li\u003e\n\u003cli\u003eavoidable service calls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePower supply: 208\/230 V and 15 A protection\u003c\/h3\u003e\n\u003cp\u003eThe documentation indicates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e208\/230 V\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003esingle-phase;\u003c\/li\u003e\n\u003cli\u003e60 Hz;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMCA: 15 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emaximum fuse: \u003cstrong\u003e15 A\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIt also mentions connection wiring \u003cstrong\u003e14\/4 AWG\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe final circuit must naturally comply with the nameplate data and the electrical requirements applicable to the project.\u003c\/p\u003e\n\u003cp\u003eFor a 12,000 BTU heat pump, the electrical demand remains relatively moderate, which facilitates integration into many residential installations.\u003c\/p\u003e\n\u003ch3\u003eThe outdoor unit remains compact\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e31.69 × 12.99 × 21.81 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e72.75 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe stated sound level is \u003cstrong\u003e57 dB(A)\u003c\/strong\u003e, and its maximum airflow is approximately \u003cstrong\u003e1,471.5 CFM\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe must nevertheless plan for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea suitable base or support;\u003c\/li\u003e\n\u003cli\u003ethe manufacturer’s clearances;\u003c\/li\u003e\n\u003cli\u003esnow;\u003c\/li\u003e\n\u003cli\u003ewater drainage during defrosting;\u003c\/li\u003e\n\u003cli\u003ethe distance from windows and terraces;\u003c\/li\u003e\n\u003cli\u003eaccess for servicing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOptional WiFi: useful depending on the building’s use\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen information sheet indicates that \u003cstrong\u003eWiFi is available as an option\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis function can be particularly useful in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ean office;\u003c\/li\u003e\n\u003cli\u003ea business;\u003c\/li\u003e\n\u003cli\u003ea dwelling;\u003c\/li\u003e\n\u003cli\u003ea secondary residence;\u003c\/li\u003e\n\u003cli\u003ea room used according to a specific schedule.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt allows the temperature to be adjusted to occupancy periods rather than constantly maintaining the same setpoint.\u003c\/p\u003e\n\u003ch3\u003eIntegrated diagnostics and leak detection\u003c\/h3\u003e\n\u003cp\u003eSenville also mentions a \u003cstrong\u003eself-diagnostic and leak detection system\u003c\/strong\u003e, designed to facilitate the identification of certain problems. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis type of function can help during a service call, but it does not replace a complete diagnosis.\u003c\/p\u003e\n\u003cp\u003eA loss of capacity can have several causes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eclogged filter;\u003c\/li\u003e\n\u003cli\u003efan motor;\u003c\/li\u003e\n\u003cli\u003esensor;\u003c\/li\u003e\n\u003cli\u003edrainage problem;\u003c\/li\u003e\n\u003cli\u003erefrigerant charge;\u003c\/li\u003e\n\u003cli\u003eelectronic control;\u003c\/li\u003e\n\u003cli\u003eairflow restriction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty: the AirGreen information sheet and the brochure currently indicate two different coverage terms\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen information sheet indicates a warranty:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years for the compressor – 10 years for parts – 0 years for labor\u003c\/strong\u003e, with the possibility of an additional warranty.\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure, for its part, states \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical table also lists \u003cstrong\u003e10 years for the compressor \/ 5 years for parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe applicable coverage must therefore be confirmed at the time of purchase based on the warranty program, registration, and the seller’s terms.\u003c\/p\u003e\n\u003ch3\u003eAdvertised provincial rebate: $1,200\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen information sheet currently indicates a \u003cstrong\u003e$1,200 provincial rebate\u003c\/strong\u003e for this combination.\u003c\/p\u003e\n\u003cp\u003eIt also states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eENERGY STAR: yes\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCold Climate: yes\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eENERGY STAR ID \u003cstrong\u003e3630052\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eAHRI \u003cstrong\u003e215735305\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe brochure confirms ENERGY STAR certification and heating capacity down to -30 °C. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAs with any financial assistance program, we recommend confirming the amount and eligibility at the time of the quote.\u003c\/p\u003e\n\u003ch3\u003eCassette or wall-mounted unit: the choice depends as much on the building as on the equipment\u003c\/h3\u003e\n\u003cp\u003eA ceiling cassette offers clear advantages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eunobstructed walls;\u003c\/li\u003e\n\u003cli\u003ediscreet architectural integration;\u003c\/li\u003e\n\u003cli\u003eair distribution from the ceiling;\u003c\/li\u003e\n\u003cli\u003ea good choice for certain open spaces;\u003c\/li\u003e\n\u003cli\u003erelatively quiet operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHowever, it generally requires more preparation.\u003c\/p\u003e\n\u003cp\u003eA wall-mounted heat pump can often be installed without modifying a finished ceiling, whereas a cassette requires technical space and precise planning.\u003c\/p\u003e\n\u003cp\u003eWe therefore recommend a cassette when the building and layout genuinely justify its advantages, not simply because it looks more discreet in a photo.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for a ceiling cassette installation\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003eSENVILLE 12,000 BTU cassette\u003c\/strong\u003e can deliver excellent performance, but the final quality depends largely on how it is integrated into the building.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we verify:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethermal sizing;\u003c\/li\u003e\n\u003cli\u003eavailable ceiling space;\u003c\/li\u003e\n\u003cli\u003estructure;\u003c\/li\u003e\n\u003cli\u003erefrigerant line routing;\u003c\/li\u003e\n\u003cli\u003edrainage;\u003c\/li\u003e\n\u003cli\u003eelectrical requirements;\u003c\/li\u003e\n\u003cli\u003eoutdoor unit location;\u003c\/li\u003e\n\u003cli\u003eair distribution;\u003c\/li\u003e\n\u003cli\u003efuture access for maintenance;\u003c\/li\u003e\n\u003cli\u003ethe applicable rebates and warranties.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWe carry out \u003cstrong\u003eHVAC air-conditioning and heating projects in Montreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e, with particular attention to building constraints before starting the work.\u003c\/p\u003e\n\u003ch3\u003eOur assessment of the SENVILLE SENA 12,000 BTU Cassette\u003c\/h3\u003e\n\u003cp\u003eThis model offers a well-balanced combination for a homeowner or business that wants a heat pump discreetly integrated into the ceiling:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12,000 BTU nominal\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ecapacity modulation up to \u003cstrong\u003e15,100 BTU in cooling mode\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ecapacity modulation up to \u003cstrong\u003e16,200 BTU in heating mode\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSEER2 22.2\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEER2 12.5\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSPF2-4 11.6\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eheating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eENERGY STAR;\u003c\/li\u003e\n\u003cli\u003eCold Climate;\u003c\/li\u003e\n\u003cli\u003erefrigerant \u003cstrong\u003eR-454B\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eindoor sound level as low as \u003cstrong\u003e27.5 dB(A)\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emaximum airflow of approximately \u003cstrong\u003e418 CFM\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eWiFi available as an option;\u003c\/li\u003e\n\u003cli\u003epiping \u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIts main advantage is not just its energy efficiency. It is the ability to integrate a high-performance heat pump into a room without using a wall as the air-distribution location.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor a SENVILLE 12,000 BTU ceiling cassette quote, contact AirGreen. We can verify the required capacity, available ceiling space, drainage, piping, and applicable financial assistance before installation in Montreal, Laval, Longueuil, the North Shore, or the South Shore.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56120175591716,"sku":"SENA-12HF-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_CASSETTE_DE_PLAFOND_SENVILLE_AURA_12000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789060309"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/collections\/LOGO_SENVILLE_-_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789053356","url":"https:\/\/airgreen.ca\/en\/collections\/senville-climatisation-ventilation-chauffage-montreal-laval-longueuil-rive-sud-et-rive-nord.oembed?page=2","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}