{"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","url":"https:\/\/airgreen.ca\/en\/products\/thermopompe-3-zones-senville-r454b-36000-btu","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}