{"product_id":"climatiseur-cassette-de-plafond-senville-sena-r454b-24000-btu","title":"SENVILLE SENA R454B Ceiling Cassette Air Conditioner | 24000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 24,000 BTU ceiling cassette designed to distribute air where a wall-mounted unit becomes less effective\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA R454B 24,000 BTU ceiling cassette air conditioner\u003c\/strong\u003e, combination \u003cstrong\u003eSENA-24HF-OG \/ SENA-24HF-ICG\u003c\/strong\u003e, addresses a very different need from that of a conventional wall-mounted heat pump. Its main advantage is not simply its 24,000 BTU capacity: it is the way it \u003cstrong\u003edistributes air from the ceiling in multiple directions\u003c\/strong\u003e, without taking over a wall and without concentrating the entire airflow at one end of the room.\u003c\/p\u003e\n\u003cp\u003eThis feature is particularly relevant in large open areas, offices, commercial spaces, meeting rooms, restaurants, certain condos, and residential spaces where furniture, windows, or the architecture make it difficult to position a wall-mounted unit.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we regularly encounter this type of situation in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/strong\u003e: a room has enough floor area to justify substantial capacity, but no wall offers a truly suitable location for distributing air evenly. In this context, a ceiling cassette becomes a much more logical HVAC solution.\u003c\/p\u003e\n\u003cp\u003eAlthough its commercial name emphasizes air conditioning, it is indeed a \u003cstrong\u003ereversible heat pump\u003c\/strong\u003e capable of both heating and cooling. The Senville brochure precisely describes the product as a 24,000 BTU ceiling cassette heat pump, ENERGY STAR certified and designed to operate year-round. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThe main features of the SENVILLE SENA 24,000 BTU\u003c\/h3\u003e\n\u003cp\u003eFor the AirGreen combination, the essential data are:\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\"\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\u003eOutdoor unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSENA-24HF-OG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCassette indoor unit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSENA-24HF-ICG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAirGreen nominal capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24,000 BTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAHRI\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e215735307\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\u003eENERGY STAR cold climate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNo ENERGY STAR\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3630054\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSEER2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20,7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEER2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12,0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHSPF2\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e11,6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeating down to\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\u003e20,400 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\u003e23,800 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\u003e9,500 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\u003e2,78\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum COP at -30°C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1,16\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\u003eapproximately 763 to 765 CFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDehumidification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eapproximately 4.99 pints\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMCA\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMOP\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 A\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\u003ePiping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/8 in – 5\/8 in\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 technical brochure publishes a nominal cooling capacity of \u003cstrong\u003e23,400 BTU\/h\u003c\/strong\u003e and a nominal heating capacity of \u003cstrong\u003e25,000 BTU\/h\u003c\/strong\u003e for the SENA-24HF-IC cassette. It also confirms a \u003cstrong\u003eSEER2 of 20.7\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 12\u003c\/strong\u003e, and an \u003cstrong\u003eHSPF2 region 4 of 11.6\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product page lists the product in the commercial \u003cstrong\u003e24,000 BTU\u003c\/strong\u003e category, which is consistent with its nominal class. However, when we compare systems for a quote, we always distinguish between the rounded commercial capacity and the exact certified values.\u003c\/p\u003e\n\u003ch3\u003eThe key difference: distributing air from the center of the room\u003c\/h3\u003e\n\u003cp\u003eA ceiling cassette does not work like a wall-mounted head.\u003c\/p\u003e\n\u003cp\u003eA wall-mounted unit generally projects air from one side of the room. In a large open area, this jet can travel a good distance, but side areas or sections behind obstacles may receive less air.\u003c\/p\u003e\n\u003cp\u003eThe cassette is installed in the ceiling and can distribute its airflow around it.\u003c\/p\u003e\n\u003cp\u003eThe value of this design is particularly clear in the verified testimonial reproduced in the Senville brochure. A homeowner explains that a wall-mounted unit already installed in their office space was not delivering the desired results, while the ceiling cassette with \u003cstrong\u003efour-way air distribution\u003c\/strong\u003e was much better suited to the space. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is exactly the type of problem we seek to address during an AirGreen assessment.\u003c\/p\u003e\n\u003cp\u003eThe number of BTUs was not necessarily the only problem. \u003cstrong\u003eHow the air was distributed\u003c\/strong\u003e was also an issue.\u003c\/p\u003e\n\u003ch3\u003eUp to approximately 765 CFM: enough airflow for a large area\u003c\/h3\u003e\n\u003cp\u003eThe brochure lists the following airflow rates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTurbo: 765.2 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHigh speed: 706.3 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMedium speed: 635.7 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLow speed: 547.4 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eAn airflow of this magnitude is significant for a 24,000 BTU cassette.\u003c\/p\u003e\n\u003cp\u003eIt can move a significant volume of air through a large room, but that airflow must be distributed properly.\u003c\/p\u003e\n\u003cp\u003eThat is why cassette placement deserves as much attention as its capacity.\u003c\/p\u003e\n\u003cp\u003eIf it is installed near a wall while most of the room is on the other side, part of the advantage of multidirectional distribution is lost.\u003c\/p\u003e\n\u003cp\u003eIn an open area, we generally look for a location that allows the cassette to distribute its air in several useful directions.\u003c\/p\u003e\n\u003ch3\u003eAutomatic louvers and air circulation\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate \u003cstrong\u003eautomatic vertical louver control\u003c\/strong\u003e, with manual horizontal adjustment depending on the configuration.\u003c\/p\u003e\n\u003cp\u003eWith a cassette, the panel's geometry itself helps distribute air around the unit.\u003c\/p\u003e\n\u003cp\u003eThis distribution becomes particularly interesting in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea conference room;\u003c\/li\u003e\n\u003cli\u003ea large living room;\u003c\/li\u003e\n\u003cli\u003ea kitchen-dining area;\u003c\/li\u003e\n\u003cli\u003ea commercial space;\u003c\/li\u003e\n\u003cli\u003ean open-plan office;\u003c\/li\u003e\n\u003cli\u003ea waiting room;\u003c\/li\u003e\n\u003cli\u003ea space without a suitable free wall for a wall-mounted heat pump.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn this type of environment, the goal is not to send all the airflow in one direction, but to create more even circulation around the occupied space.\u003c\/p\u003e\n\u003ch3\u003eA discreet unit, but one that requires ceiling space\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e32.68 in × 32.68 in × 8.07 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e47.18 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIts depth of just over eight inches explains why cassettes can fit relatively discreetly into certain drop ceilings or utility spaces.\u003c\/p\u003e\n\u003cp\u003eBut “only 8 in” does not mean that a cassette can be installed in any ceiling.\u003c\/p\u003e\n\u003cp\u003eWe must allow space for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe unit body;\u003c\/li\u003e\n\u003cli\u003erefrigerant connections;\u003c\/li\u003e\n\u003cli\u003econdensate drain;\u003c\/li\u003e\n\u003cli\u003ewiring;\u003c\/li\u003e\n\u003cli\u003esupport components;\u003c\/li\u003e\n\u003cli\u003emaintenance access;\u003c\/li\u003e\n\u003cli\u003ethe clearances required to remove certain components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA tightly finished ceiling can therefore make installation much more complex than a commercial suspended ceiling.\u003c\/p\u003e\n\u003ch3\u003e33.5 dB(A) at low speed\u003c\/h3\u003e\n\u003cp\u003eThe cassette is rated at approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e33.5 dB(A) at low speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e42.5 dB(A) at medium speed\u003c\/li\u003e\n\u003cli\u003e45 dB(A) at high speed\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e48.5 dB(A) in Turbo mode\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese values explain why this type of unit may be suitable for an office or living area.\u003c\/p\u003e\n\u003cp\u003eThe actual sound level also depends on the ceiling structure.\u003c\/p\u003e\n\u003cp\u003eA poorly secured mechanical installation can transmit more vibration than a properly suspended and isolated unit.\u003c\/p\u003e\n\u003ch3\u003eTrue dehumidification performance: approximately 4.99 pints per hour\u003c\/h3\u003e\n\u003cp\u003eThe brochure indicates a moisture-removal capacity of \u003cstrong\u003e2.36 liters per hour\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis corresponds to approximately \u003cstrong\u003e4.99 pints per hour\u003c\/strong\u003e, the value shown on the AirGreen specification sheet.\u003c\/p\u003e\n\u003cp\u003eThis figure is particularly significant during the hot, humid days of \u003cstrong\u003eMontreal and Montérégie\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA properly sized air-conditioning system does more than lower the temperature. It must also remove some of the moisture from the air.\u003c\/p\u003e\n\u003cp\u003eAn oversized unit can sometimes reach the requested temperature too quickly and reduce its operating time, which can impair humidity control.\u003c\/p\u003e\n\u003cp\u003eWe therefore do not automatically choose a 24,000 BTU cassette simply because a room is “large.” We must verify the actual load.\u003c\/p\u003e\n\u003ch3\u003e20.7 SEER2: appealing efficiency for a cassette\u003c\/h3\u003e\n\u003cp\u003eThe Senville has a \u003cstrong\u003eSEER2 of 20.7\u003c\/strong\u003e and an \u003cstrong\u003eEER2 of 12\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis efficiency level is particularly appealing for a system that can replace both an air conditioner and a significant portion of electric heating.\u003c\/p\u003e\n\u003cp\u003eActual consumption obviously varies according to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eoutdoor temperature;\u003c\/li\u003e\n\u003cli\u003esetpoints;\u003c\/li\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003esun exposure;\u003c\/li\u003e\n\u003cli\u003ehours of use;\u003c\/li\u003e\n\u003cli\u003ethe actual capacity required;\u003c\/li\u003e\n\u003cli\u003efilter and coil maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA high SEER2 rating can therefore never compensate for improper sizing or lack of maintenance.\u003c\/p\u003e\n\u003ch3\u003eOperation down to -30 °C: available capacity must be examined closely\u003c\/h3\u003e\n\u003cp\u003eThe Senville is advertised as operating in heating mode down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, which the brochure also confirms. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specification sheet provides 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\"\u003eHeating available\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\u003e20,400 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\u003e23,800 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\u003e9,500 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 \u003cstrong\u003eCOP at -8 °C\u003c\/strong\u003e is approximately \u003cstrong\u003e2.78\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-30 °C\u003c\/strong\u003e, the published maximum COP drops to \u003cstrong\u003e1.16\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis progression illustrates an essential reality of heat pump heating: the unit can continue operating at very low temperatures without necessarily retaining its rated capacity.\u003c\/p\u003e\n\u003cp\u003eAt -30 °C, \u003cstrong\u003e9,500 BTU\/h\u003c\/strong\u003e represents less than half of the 24,000 BTU commercial capacity.\u003c\/p\u003e\n\u003cp\u003eIn a large open area, supplementary heating may therefore be required during cold snaps if the building's heat losses exceed this value.\u003c\/p\u003e\n\u003ch3\u003ePerformance at -15 °C is particularly noteworthy\u003c\/h3\u003e\n\u003cp\u003eThe stated capacity of \u003cstrong\u003e23,800 BTU\/h at -15 °C\u003c\/strong\u003e is close to the system's rated capacity.\u003c\/p\u003e\n\u003cp\u003eFor the climate of \u003cstrong\u003eMontreal, Laval, Longueuil, and the South Shore\u003c\/strong\u003e, this value is often more indicative of everyday winter performance than capacity at an extreme temperature of -30 °C.\u003c\/p\u003e\n\u003cp\u003eThis means that the system can still provide a significant portion of the heating for much of the winter.\u003c\/p\u003e\n\u003cp\u003eAuxiliary heating becomes especially crucial when temperatures become significantly more severe or when the building has high heat losses.\u003c\/p\u003e\n\u003ch2\u003eAirGreen installation: a ceiling cassette requires more preparation than a wall-mounted heat pump\u003c\/h2\u003e\n\u003ch3\u003eThe ceiling structure must properly support the unit\u003c\/h3\u003e\n\u003cp\u003eA ceiling cassette should not simply rest on the tiles of a suspended ceiling.\u003c\/p\u003e\n\u003cp\u003eThe indoor unit weighs approximately \u003cstrong\u003e47 lb\u003c\/strong\u003e, not including accessories, the panel, and connections.\u003c\/p\u003e\n\u003cp\u003eIt must be supported by an appropriate structure.\u003c\/p\u003e\n\u003cp\u003eWhen preparing a job site in \u003cstrong\u003eMontreal, Laval, or Longueuil\u003c\/strong\u003e, we must check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe available structure above the ceiling;\u003c\/li\u003e\n\u003cli\u003ethe location of the joists;\u003c\/li\u003e\n\u003cli\u003eexisting ductwork;\u003c\/li\u003e\n\u003cli\u003eplumbing;\u003c\/li\u003e\n\u003cli\u003eelectrical cables;\u003c\/li\u003e\n\u003cli\u003elight fixtures;\u003c\/li\u003e\n\u003cli\u003esprinklers;\u003c\/li\u003e\n\u003cli\u003emechanical obstacles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn some commercial spaces, all this space is already heavily occupied. A few inches' difference in the chosen location can avoid many modifications.\u003c\/p\u003e\n\u003ch3\u003eThe condensate drain is a critical point\u003c\/h3\u003e\n\u003cp\u003eA cassette produces condensate in cooling mode.\u003c\/p\u003e\n\u003cp\u003eThis water must be drained reliably.\u003c\/p\u003e\n\u003cp\u003eThe drain route must be planned before cutting into the ceiling, especially when the unit is located in the center of a room.\u003c\/p\u003e\n\u003cp\u003ePoor drainage can cause:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewater accumulation;\u003c\/li\u003e\n\u003cli\u003ebackflow;\u003c\/li\u003e\n\u003cli\u003eceiling stains;\u003c\/li\u003e\n\u003cli\u003etile damage;\u003c\/li\u003e\n\u003cli\u003eodors;\u003c\/li\u003e\n\u003cli\u003esafety shutdowns;\u003c\/li\u003e\n\u003cli\u003edamage to surrounding materials.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a \u003cstrong\u003eprofessional HVAC installation\u003c\/strong\u003e, the drain line should never be considered a secondary detail.\u003c\/p\u003e\n\u003ch3\u003eChoosing the center of the room is not always automatic\u003c\/h3\u003e\n\u003cp\u003eIt may seem logical to place a cassette perfectly in the center of a room.\u003c\/p\u003e\n\u003cp\u003eIt is not always the best option.\u003c\/p\u003e\n\u003cp\u003eThe right location also depends on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewhere people are seated;\u003c\/li\u003e\n\u003cli\u003edisplay windows;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003eheat sources;\u003c\/li\u003e\n\u003cli\u003ethe furniture layout;\u003c\/li\u003e\n\u003cli\u003edoors;\u003c\/li\u003e\n\u003cli\u003ethe fenestration;\u003c\/li\u003e\n\u003cli\u003ethe refrigerant line route;\u003c\/li\u003e\n\u003cli\u003eaccess to the drain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a restaurant, for example, we avoid directing a strong airflow directly at certain tables whenever possible.\u003c\/p\u003e\n\u003cp\u003eIn an office, we want to reduce direct drafts over workstations.\u003c\/p\u003e\n\u003ch3\u003eA common scenario: a large open area with very few available walls\u003c\/h3\u003e\n\u003cp\u003eWe regularly encounter projects where nearly all available walls are occupied by:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewindows;\u003c\/li\u003e\n\u003cli\u003ecabinets;\u003c\/li\u003e\n\u003cli\u003eshelves;\u003c\/li\u003e\n\u003cli\u003edoors;\u003c\/li\u003e\n\u003cli\u003escreens;\u003c\/li\u003e\n\u003cli\u003earchitectural elements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA wall-mounted heat pump would then require a compromised location.\u003c\/p\u003e\n\u003cp\u003eThe ceiling cassette offers a particularly attractive alternative because it removes the indoor unit from the walls and uses the ceiling as the distribution point.\u003c\/p\u003e\n\u003cp\u003eThis is often the type of project where the \u003cstrong\u003eSENVILLE 24,000 BTU cassette\u003c\/strong\u003e makes the most sense.\u003c\/p\u003e\n\u003ch3\u003eR-454B and precharge up to 25 ft\u003c\/h3\u003e\n\u003cp\u003eThe cassette operates with \u003cstrong\u003eR-454B\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe brochure indicates a charge of \u003cstrong\u003e63.49 oz\u003c\/strong\u003e and a factory charge for a refrigerant line up to \u003cstrong\u003e25 ft\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville also specifies that a 50 ft set requires the installer to add refrigerant on site. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe line length must therefore be measured before installation.\u003c\/p\u003e\n\u003cp\u003eWhen the cassette is near the center of a building, the route to the outdoor unit can easily exceed that of a wall-mounted head installed on an exterior wall.\u003c\/p\u003e\n\u003ch3\u003e3\/8 – 5\/8 piping\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen sheet specifies:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3\/8 in – 5\/8 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003efor the refrigerant piping.\u003c\/p\u003e\n\u003cp\u003eThese diameters must be followed in accordance with the specifications for the installed combination.\u003c\/p\u003e\n\u003cp\u003eFor a replacement, we do not assume that existing old piping can automatically be reused simply because its length appears adequate. The diameter, condition, previous refrigerant, and manufacturer requirements must be verified.\u003c\/p\u003e\n\u003ch3\u003e208\/230 V, MCA 25 A, and MOP 25 A\u003c\/h3\u003e\n\u003cp\u003eThe technical documentation confirms 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\u003eIt also indicates:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMCA: 25 A\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003emaximum protection: 25 A\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe published interconnection wiring is \u003cstrong\u003e14\/4 AWG\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAs always, the final circuit must be installed according to applicable requirements, the nameplate specifications, and the actual site configuration.\u003c\/p\u003e\n\u003ch3\u003eA 130 lb outdoor unit\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit measures:\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\u003eIts maximum outdoor airflow reaches approximately \u003cstrong\u003e2,236.7 CFM\u003c\/strong\u003e, with a published sound level of \u003cstrong\u003e61.5 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe must therefore leave enough space around the outdoor heat exchanger and avoid areas where snow could block the unit.\u003c\/p\u003e\n\u003ch3\u003eInstalling a -30 °C heat pump at ground level would be a poor decision\u003c\/h3\u003e\n\u003cp\u003eA heat pump designed to continue heating at very low temperatures must be able to operate during snowstorms.\u003c\/p\u003e\n\u003cp\u003eWe therefore look for a location that allows:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eadequate height above accumulated snow;\u003c\/li\u003e\n\u003cli\u003edrainage of defrost water;\u003c\/li\u003e\n\u003cli\u003esufficient space around the heat exchanger;\u003c\/li\u003e\n\u003cli\u003eaccess for maintenance;\u003c\/li\u003e\n\u003cli\u003ereduced vibrations transmitted to the structure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe defrost cycle can produce a significant amount of water that freezes around the outdoor unit. This must be anticipated from the outset of the installation.\u003c\/p\u003e\n\u003ch3\u003eWiFi optional\u003c\/h3\u003e\n\u003cp\u003eUnlike certain Senville wall-mounted models where WiFi is included as standard, the AirGreen listing indicates that \u003cstrong\u003eWiFi is optional\u003c\/strong\u003e here.\u003c\/p\u003e\n\u003cp\u003eFor an office, business, or large living area, adding remote control may be worthwhile.\u003c\/p\u003e\n\u003cp\u003eAmong other things, it allows you to adjust settings before occupants arrive or reduce operation when the space is unoccupied.\u003c\/p\u003e\n\u003ch3\u003eSelf-diagnostics and leak detection\u003c\/h3\u003e\n\u003cp\u003eSenville mentions \u003cstrong\u003eself-diagnostics and leak detection\u003c\/strong\u003e functions that can help identify certain problems. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese functions are useful, but they do not replace \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eReduced airflow or discomfort may also be caused by a dirty filter, a clogged heat exchanger, a problematic drain, or incorrectly positioned louvers.\u003c\/p\u003e\n\u003ch3\u003eThe cassette must remain accessible for maintenance\u003c\/h3\u003e\n\u003cp\u003eA ceiling cassette provides a very discreet visual result, but it must not become inaccessible.\u003c\/p\u003e\n\u003cp\u003eThe filters must be removable.\u003c\/p\u003e\n\u003cp\u003eThe panel must be removable.\u003c\/p\u003e\n\u003cp\u003eMechanical components must remain accessible for diagnostics.\u003c\/p\u003e\n\u003cp\u003eWe therefore avoid designing an installation where finishing elements prevent the normal opening or removal of service components.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a point to confirm before purchase\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing indicates a warranty \u003cstrong\u003e10-10-0\u003c\/strong\u003e, namely:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10-year compressor – 10-year parts – 0-year labor\u003c\/strong\u003e, with the possibility of additional coverage.\u003c\/p\u003e\n\u003cp\u003eThe supplied Senville brochure nevertheless 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\u003eWe therefore recommend confirming the conditions that actually apply at the time of purchase and product registration.\u003c\/p\u003e\n\u003cp\u003eThis verification is preferable to automatically using the most advantageous duration when there is a discrepancy between several documents.\u003c\/p\u003e\n\u003ch3\u003eA listed provincial rebate of $2,448\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing indicates a \u003cstrong\u003e$2,448 provincial rebate\u003c\/strong\u003e for this combination.\u003c\/p\u003e\n\u003cp\u003eThe heating capacity at \u003cstrong\u003e-8 °C is published as 20,400 BTU\/h\u003c\/strong\u003e, which is important data for programs that calculate financial assistance based on low-temperature capacity.\u003c\/p\u003e\n\u003cp\u003eThe combination is also identified as \u003cstrong\u003eENERGY STAR cold climate\u003c\/strong\u003e with the number \u003cstrong\u003e3630054\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAs always, we confirm eligibility based on the exact combination and the program conditions in effect at the time of installation.\u003c\/p\u003e\n\u003ch3\u003eWho do we especially recommend this SENVILLE cassette to?\u003c\/h3\u003e\n\u003cp\u003eThis 24,000 BTU cassette is particularly worth considering for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea \u003cstrong\u003elarge open area\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea commercial space;\u003c\/li\u003e\n\u003cli\u003ean office;\u003c\/li\u003e\n\u003cli\u003ea meeting room;\u003c\/li\u003e\n\u003cli\u003ea restaurant;\u003c\/li\u003e\n\u003cli\u003ea basement with a suspended ceiling;\u003c\/li\u003e\n\u003cli\u003ea condo with extensive glazing;\u003c\/li\u003e\n\u003cli\u003ea central room with no exterior wall available;\u003c\/li\u003e\n\u003cli\u003ea property where the appearance of a wall-mounted unit is an issue;\u003c\/li\u003e\n\u003cli\u003ea space where multi-directional air distribution is preferable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is less suitable when there is no available space above the ceiling or when a wall-mounted unit can cover the space more simply and at a lower cost.\u003c\/p\u003e\n\u003ch3\u003eThe mistakes we aim to avoid at AirGreen\u003c\/h3\u003e\n\u003cp\u003eA ceiling cassette can deliver excellent results when properly selected, but its installation requires more planning than a wall-mounted head.\u003c\/p\u003e\n\u003cp\u003eThe most costly mistakes are often:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003echoosing the cassette solely based on the floor area;\u003c\/li\u003e\n\u003cli\u003einstalling it too close to a wall;\u003c\/li\u003e\n\u003cli\u003eunderestimating the space required above the ceiling;\u003c\/li\u003e\n\u003cli\u003eneglecting drainage;\u003c\/li\u003e\n\u003cli\u003eunnecessarily extending the refrigerant lines;\u003c\/li\u003e\n\u003cli\u003emaking the filter difficult to access;\u003c\/li\u003e\n\u003cli\u003efailing to plan for the support structure;\u003c\/li\u003e\n\u003cli\u003eimproperly positioning the outdoor unit;\u003c\/li\u003e\n\u003cli\u003eassuming that “-30 °C” means 24,000 BTUs are available at -30 °C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we aim to address these factors before work begins.\u003c\/p\u003e\n\u003ch3\u003eA particularly interesting solution when air distribution matters as much as BTUs\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA R454B 24,000 BTU ceiling cassette\u003c\/strong\u003e combines \u003cstrong\u003e20.7 SEER2\u003c\/strong\u003e efficiency, an \u003cstrong\u003e11.6 HSPF2\u003c\/strong\u003e, an airflow of approximately 765 CFM, a dehumidification capacity of approximately 4.99 pints per hour, and heating operation down to -30 °C.\u003c\/p\u003e\n\u003cp\u003eBut its main difference from a wall-mounted heat pump remains its \u003cstrong\u003eair distribution from the ceiling\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn the right spaces, this feature can be more important than a few additional SEER points.\u003c\/p\u003e\n\u003cp\u003eFor a project in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, the South Shore, or elsewhere in Montérégie\u003c\/strong\u003e, we can assess whether the cassette is truly the best type of indoor unit, whether the ceiling provides enough space, how to drain the condensate, and where to place the outdoor unit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen for a quote on the SENVILLE SENA R454B 24,000 BTU ceiling cassette. We can verify the capacity, location, ceiling, drainage, piping, electrical circuit, AHRI reference, and applicable rebate before installation.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56120175657252,"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\/00_CASSETTE_DE_PLAFOND_SENVILLE_AURA_24000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789060326","url":"https:\/\/airgreen.ca\/en\/products\/climatiseur-cassette-de-plafond-senville-sena-r454b-24000-btu","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}