{"title":"Cassette de Plafond SENVILLE | Installation à Montréal, Laval, Longueuil, Rive Sud \u0026 Rive Nord","description":null,"products":[{"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"},{"product_id":"climatiseur-cassette-de-plafond-senville-sena-r454b-18000-btu","title":"SENVILLE SENA R454B Ceiling Cassette Air Conditioner | 18000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA ceiling cassette that frees up wall space while providing heating down to -30 °C, ENERGY STAR efficiency, and air distribution from the center of the room\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA R454B | 18000 BTU Ceiling Cassette Air Conditioner\u003c\/strong\u003e meets a very different need from that of a traditional wall-mounted heat pump. Here, the indoor unit does not occupy a large section of wall: it is integrated into the ceiling, which can be particularly advantageous in an open-concept area, a commercial space, an office, a renovated condo, or a home where the architecture leaves little available wall space.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we install \u003cstrong\u003eceiling cassette systems in Montreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e when the building’s configuration truly justifies this type of unit. The cassette allows the air-distribution source to be placed closer to the center of the space rather than blowing exclusively from a peripheral wall. This detail can completely change the feeling of comfort in a large room.\u003c\/p\u003e\n\u003cp\u003eThe exact match covered by this specification consists of the \u003cstrong\u003eSENA-18HF-OG\u003c\/strong\u003e outdoor unit and the \u003cstrong\u003eSENA-18HF-ICG\u003c\/strong\u003e indoor cassette, under reference \u003cstrong\u003eAHRI 215735306\u003c\/strong\u003e. Current certification data confirm a \u003cstrong\u003ecold-climate ENERGY STAR\u003c\/strong\u003e unit operating with \u003cstrong\u003eR454B\u003c\/strong\u003e, with a \u003cstrong\u003eSEER2 of 20\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 12.5\u003c\/strong\u003e, and an \u003cstrong\u003eHSPF2 of 12.3\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eOne essential clarification: “18,000 BTU” is the commercial class, but the AHRI capacity is different\u003c\/h3\u003e\n\u003cp\u003eThis is probably the most useful information to understand before comparing this product with other heat pumps.\u003c\/p\u003e\n\u003cp\u003eThe system is marketed in the \u003cstrong\u003e18,000 BTU\u003c\/strong\u003e category, but Senville’s detailed technical specifications indicate a \u003cstrong\u003ecertified cooling capacity of 16,000 BTU\/h\u003c\/strong\u003e and a rated heating capacity of \u003cstrong\u003e19,000 BTU\/h\u003c\/strong\u003e. The published modulation range is \u003cstrong\u003e7,000 to 18,500 BTU\/h in cooling\u003c\/strong\u003e and \u003cstrong\u003e8,700 to 20,000 BTU\/h in heating\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville’s current official page lists exactly these values. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference is not unusual in HVAC. A commercial designation of 18,000 BTU may refer to an equipment family whose certified capacity under a specific match is slightly different.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, when we size a project or compare two units, we therefore use the \u003cstrong\u003eAHRI capacity of the exact match\u003c\/strong\u003e, rather than relying solely on the number shown in the product title.\u003c\/p\u003e\n\u003ch3\u003eThe technical specifications that really matter in the field\u003c\/h3\u003e\n\u003cp\u003eFor the \u003cstrong\u003eSENA-18HF-OG + SENA-18HF-ICG\u003c\/strong\u003e combination, here are the most important data:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735306\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCommercial class: 18,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCertified cooling capacity: 16,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling range: 7,000 to 18,500 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating capacity: 19,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating range: 8,700 to 20,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 20.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 12.5\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region IV: 12.3\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region V: 9.5\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\u003eCapacity at approximately -8 °C: 14,900 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCapacity at -15 °C: 17,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePiping: 1\/4 in – 1\/2 in\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\u003eManufacturer MCA: 19 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 airflow: 194 to 447 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor sound level: 27.5 to 48 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound level: 57.5 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor cassette dimensions: 22.44 × 22.44 × 9.65 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit dimensions: 35.04 × 13.46 × 26.50 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDehumidification capacity: 2 L\/h, or approximately 4.23 pints\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi: available depending on the selected control option\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe electrical specifications require clarification: the manufacturer's documentation indicates \u003cstrong\u003eMCA 19 A and maximum protection 20 A\u003c\/strong\u003e. This detailed technical data is what we use to plan the electrical circuit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e20 SEER2: high efficiency without chasing a spectacular number at the expense of the project\u003c\/h3\u003e\n\u003cp\u003eWith a \u003cstrong\u003eSEER2 of 20\u003c\/strong\u003e, this Senville cassette falls into a very attractive efficiency category for a ceiling-recessed system.\u003c\/p\u003e\n\u003cp\u003eThe ENERGY STAR certification also confirms the \u003cstrong\u003ecold-climate\u003c\/strong\u003e designation of the exact matched system, with a capacity of 16,000 BTU for cooling and 19,000 BTU for heating. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, however, we avoid presenting SEER2 as guaranteed dollar savings.\u003c\/p\u003e\n\u003cp\u003eActual performance depends in part on insulation, operating hours, desired temperature, solar exposure, ceiling height, air infiltration, and sizing.\u003c\/p\u003e\n\u003cp\u003eA highly efficient cassette installed in a space that is too small may run shorter cycles than desired. Conversely, a properly sized unit can make better use of its Inverter technology by modulating rather than constantly switching between full capacity and complete shutdown.\u003c\/p\u003e\n\u003ch3\u003eA ceiling cassette is primarily an air distribution solution\u003c\/h3\u003e\n\u003cp\u003eThe real difference from a wall-mounted unit is not purely aesthetic.\u003c\/p\u003e\n\u003cp\u003eA wall-mounted unit blows from one side of the room. In a large open area, we therefore need to find a wall that allows the air to travel a sufficient distance.\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003eceiling cassette\u003c\/strong\u003e can be placed much closer to the center of the occupied area. This is particularly useful in an open-plan living room and kitchen, a retail space, a meeting room, or an area with several glass façades.\u003c\/p\u003e\n\u003cp\u003eThis positioning allows airflow to be distributed from a central point instead of relying on a single wall.\u003c\/p\u003e\n\u003cp\u003eThis Senville's airflow ranges from approximately \u003cstrong\u003e194 CFM at low speed to 447 CFM in High\/Turbo mode\u003c\/strong\u003e, depending on the settings. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA good ceiling position can therefore be more important than an arbitrary increase in capacity.\u003c\/p\u003e\n\u003ch3\u003e27.5 dB(A) at low speed: a cassette can remain very quiet\u003c\/h3\u003e\n\u003cp\u003eThe published indoor sound level goes down to approximately \u003cstrong\u003e27.5 dB(A)\u003c\/strong\u003e. At higher speeds, the levels gradually rise to 41, 44.5, and then 48 dB(A). \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn an office or residential area, this modulation is useful: the system does not need to operate at maximum speed continuously when the load is low.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit is listed at approximately \u003cstrong\u003e57.5 dB(A)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAs always, the perceived noise level also depends on the installation. An outdoor unit poorly positioned against a resonant structure can transmit more vibration than a properly supported unit.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -30 °C: what the numbers really say\u003c\/h3\u003e\n\u003cp\u003eSenville advertises heating operation down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e, as confirmed by the official brochure. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis specification is interesting, but it should never be interpreted as “19,000 BTUs available down to -30 °C.”\u003c\/p\u003e\n\u003cp\u003eAt approximately \u003cstrong\u003e-8 °C\u003c\/strong\u003e, the combination delivers approximately \u003cstrong\u003e14,900 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-15 °C\u003c\/strong\u003e, certification data indicate approximately \u003cstrong\u003e17,000 BTU\/h\u003c\/strong\u003e, with a COP of around \u003cstrong\u003e1.9\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt -30 °C, the AirGreen product information sheet indicates a maximum capacity of approximately \u003cstrong\u003e8,100 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis is precisely why we always refer to the \u003cstrong\u003ecapacity curve\u003c\/strong\u003e, rather than simply the minimum temperature.\u003c\/p\u003e\n\u003cp\u003eA heat pump can still operate at -30 °C while requiring a supplemental heat source if the building's heat loss exceeds the BTUs it can deliver.\u003c\/p\u003e\n\u003ch3\u003eHeating capacity can be greater than cooling capacity\u003c\/h3\u003e\n\u003cp\u003eThis model clearly illustrates a reality that is often misunderstood.\u003c\/p\u003e\n\u003cp\u003eIts certified cooling capacity is \u003cstrong\u003e16,000 BTU\/h\u003c\/strong\u003e, while its rated heating capacity reaches \u003cstrong\u003e19,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor Quebec, this distinction is particularly relevant, as heating often represents a significant portion of annual energy use.\u003c\/p\u003e\n\u003cp\u003eA homeowner comparing two systems solely on their cooling capacity may therefore overlook an important part of the analysis.\u003c\/p\u003e\n\u003ch3\u003eDehumidification: approximately 4.23 pints of water per hour\u003c\/h3\u003e\n\u003cp\u003eSenville indicates a moisture removal capacity of \u003cstrong\u003e2 liters per hour\u003c\/strong\u003e, or approximately \u003cstrong\u003e4.23 pints\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDuring the very humid periods of July and August in Montréal, this dehumidification work directly contributes to comfort.\u003c\/p\u003e\n\u003cp\u003eA room at 23 °C with high humidity can feel much less comfortable than a room at the same temperature with better humidity control.\u003c\/p\u003e\n\u003cp\u003eThis is also why we avoid unnecessarily oversizing heat pumps. A unit that reaches its temperature setpoint too quickly may reduce the length of the cycles needed to remove humidity.\u003c\/p\u003e\n\u003ch2\u003eA SENVILLE cassette requires different installation planning than a wall-mounted unit\u003c\/h2\u003e\n\u003ch3\u003eThe first challenge is not the refrigerant: it is the ceiling\u003c\/h3\u003e\n\u003cp\u003eA cassette measuring \u003cstrong\u003e22.44 × 22.44 × 9.65 in\u003c\/strong\u003e must be integrated into the available space above the ceiling. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore need to check before the work begins:\u003c\/p\u003e\n\u003cp\u003ethe structure, joists, available depth, existing ducts, electrical wires, plumbing, access for maintenance, and the drain route.\u003c\/p\u003e\n\u003cp\u003eA wall-mounted unit can often be installed without opening a large section of the ceiling. A cassette requires much more precise coordination with the building structure.\u003c\/p\u003e\n\u003cp\u003eThat is why a photo of the room is not always enough to confirm feasibility.\u003c\/p\u003e\n\u003ch3\u003eOur AirGreen experience in Outremont: a few inches can change the project\u003c\/h3\u003e\n\u003cp\u003eDuring an AirGreen installation of an \u003cstrong\u003e18,000 BTU ceiling cassette in Outremont\u003c\/strong\u003e, we had to work in a restricted attic space. The main challenge was not the heat pump’s capacity, but the mechanical integration of the unit, routing \u003cstrong\u003e1\/4 in – 1\/2 in\u003c\/strong\u003e piping, and managing condensate drainage. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis project involved a GREE cassette, not this Senville unit. Nevertheless, the experience remains directly applicable to planning: \u003cstrong\u003ea ceiling cassette must be selected based on the concealed space above the ceiling as much as on the BTUs required for the room\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn 2026, we also completed an installation in \u003cstrong\u003eAhuntsic-Cartierville\u003c\/strong\u003e where the cassette had to be perfectly aligned in an open living area, between the existing architectural elements. Visual integration was just as important as HVAC performance. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eDrainage must be planned before closing the ceiling\u003c\/h3\u003e\n\u003cp\u003eA cassette produces water in cooling mode.\u003c\/p\u003e\n\u003cp\u003eWith dehumidification capacity of up to approximately 2 L\/h, drainage should not be considered a secondary detail.\u003c\/p\u003e\n\u003cp\u003eWe plan the drain based on the possible slope, the water destination, future access, and the system requirements.\u003c\/p\u003e\n\u003cp\u003eA drainage error on a wall-mounted unit is already problematic. On a ceiling-recessed cassette, it can cause much more costly damage to the finishes.\u003c\/p\u003e\n\u003cp\u003eThis is one of the reasons why we pay particular attention to drainage before the ceiling is closed.\u003c\/p\u003e\n\u003ch3\u003eR454B: evacuation, leak-tightness, and suitable tools\u003c\/h3\u003e\n\u003cp\u003eThe Senville uses \u003cstrong\u003e55.38 oz of R454B\u003c\/strong\u003e and is precharged for a length of up to \u003cstrong\u003e25 ft\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville specifies that an installation with a 50 ft kit requires the installer to adjust the charge and that a \u003cstrong\u003eprofessional installation is required to maintain the warranty and performance\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eR454B belongs to the A2L category. We therefore use procedures and equipment suited to refrigerant handling, leak testing, evacuation, and commissioning.\u003c\/p\u003e\n\u003cp\u003eA cassette also has a finished ceiling above it, behind which several connections may become less accessible after the work is completed. We therefore want these connections to be properly made from the outset.\u003c\/p\u003e\n\u003ch3\u003e1\/4 in – 1\/2 in piping: a particularly important detail in renovations\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENA-18HF-OG \/ SENA-18HF-ICG\u003c\/strong\u003e configuration uses \u003cstrong\u003e1\/4 in – 1\/2 in\u003c\/strong\u003e piping.\u003c\/p\u003e\n\u003cp\u003eIn new construction, we can plan their route relatively freely.\u003c\/p\u003e\n\u003cp\u003eIn a renovation in \u003cstrong\u003eMontréal or Longueuil\u003c\/strong\u003e, the lines may sometimes need to pass between joists, behind a soffit, or through an existing finished wall.\u003c\/p\u003e\n\u003cp\u003eWe therefore assess not only the shortest distance, but especially the route that allows for a clean installation, adequate drainage, and reasonable service access.\u003c\/p\u003e\n\u003ch3\u003eThe electrical circuit: information to correct before installation\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer’s technical data sheet clearly states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMCA: 19 A\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum protection: 20 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis point is important because reversing these values in a commercial product sheet can create confusion.\u003c\/p\u003e\n\u003cp\u003eFor the actual installation, we rely on the manufacturer’s technical documentation and the nameplate on the equipment delivered.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi: to be treated as an option, not as a guaranteed native feature\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates \u003cstrong\u003eWi-Fi optional\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe Senville documentation provided with this cassette mentions a wireless remote control but does not present Wi-Fi as a standard included component. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe current ENERGY STAR database also indicates that connected capability is not native to this pairing. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore present Wi-Fi control as \u003cstrong\u003ean option to be confirmed based on the accessory or controller selected\u003c\/strong\u003e, rather than implying that it is automatically integrated.\u003c\/p\u003e\n\u003ch3\u003eLogisVert: why this cassette qualifies for $1,788\u003c\/h3\u003e\n\u003cp\u003eThe heating capacity used for the calculation at \u003cstrong\u003e-8 °C is 14,900 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eHydro-Québec currently offers \u003cstrong\u003e$120 per 1,000 BTU\/h at -8 °C\u003c\/strong\u003e for an ENERGY STAR-certified cold-climate heat pump when all LogisVert program 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 simple:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e14.9 × $120 = $1,788\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is the \u003cstrong\u003e$1,788 LogisVert rebate\u003c\/strong\u003e associated with this configuration.\u003c\/p\u003e\n\u003cp\u003eThe older Hydro-Québec lists specifically identify \u003cstrong\u003eAHRI 215735306, SENA-18HF-OG + SENA-18HF-ICG\u003c\/strong\u003e, with a capacity of 14,900 BTU\/h at -8 °C and an amount of $1,788 under the $120\/$1,000 BTU schedule. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHydro-Québec nevertheless specifies that the amount and eligibility are determined according to the \u003cstrong\u003einstallation date\u003c\/strong\u003e. We therefore always verify the conditions in effect when preparing the project. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWarranty: the manufacturer’s brochure and AirGreen coverage must be distinguished\u003c\/h3\u003e\n\u003cp\u003eThe Senville brochure currently 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 AirGreen product page associated with the product, for its part, presents \u003cstrong\u003e10-10-0\u003c\/strong\u003e, with an additional warranty possible.\u003c\/p\u003e\n\u003cp\u003eThese two data points are not identical.\u003c\/p\u003e\n\u003cp\u003eThe warranty that actually applies must therefore be clearly specified on the \u003cstrong\u003efinal AirGreen quote\u003c\/strong\u003e, according to the manufacturer’s program, registration conditions, and any additional coverage offered to the customer.\u003c\/p\u003e\n\u003cp\u003eWe prefer to clarify this difference before purchase rather than leave an ambiguity in a warranty file several years after installation.\u003c\/p\u003e\n\u003ch3\u003eMistakes we aim to avoid with a ceiling cassette\u003c\/h3\u003e\n\u003cp\u003eThe first mistake is choosing a cassette based solely on its appearance. If the space between the ceiling and the structure does not allow for proper installation, the project becomes unnecessarily complex.\u003c\/p\u003e\n\u003cp\u003eThe second is placing the cassette exactly at the geometric center of the room without checking the structure. The best visual location is not always the best mechanical location.\u003c\/p\u003e\n\u003cp\u003eThe third is neglecting the drain. A concealed cassette must be able to reliably drain its condensate.\u003c\/p\u003e\n\u003cp\u003eThe fourth is oversizing the system. An 18,000 BTU cassette is not automatically preferable to a 12,000 BTU model simply because the room is large.\u003c\/p\u003e\n\u003cp\u003eThe fifth is confusing the \u003cstrong\u003e18,000 BTU commercially advertised\u003c\/strong\u003e capacity with the \u003cstrong\u003e16,000 BTU of certified cooling capacity\u003c\/strong\u003e for this combination. For sizing, we work with the actual technical data.\u003c\/p\u003e\n\u003ch3\u003eWhat type of project do we especially recommend this SENVILLE for?\u003c\/h3\u003e\n\u003cp\u003eThis cassette can be particularly suitable for a large open area where the walls are occupied by windows, cabinets, or architectural features.\u003c\/p\u003e\n\u003cp\u003eWe also consider it for certain businesses, offices, and spaces where a wall-mounted unit would be visually obtrusive.\u003c\/p\u003e\n\u003cp\u003eDuring a full renovation, it can be installed while the ceiling is already open, which greatly facilitates routing the lines, drainage, and electrical wiring.\u003c\/p\u003e\n\u003cp\u003eIt is less suitable when the space above the ceiling is inaccessible or when future maintenance would require removing a large amount of finishing.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for a ceiling cassette?\u003c\/h3\u003e\n\u003cp\u003eA cassette requires more coordination than a conventional wall-mounted heat pump.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we assess not only the BTUs, but also \u003cstrong\u003ethe ceiling structure, joist locations, available depth, drainage, piping, electrical requirements, service access, and condenser position\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOur experience with cassette installations in \u003cstrong\u003eMontreal and Outremont\u003c\/strong\u003e, as well as recent projects in \u003cstrong\u003eAhuntsic-Cartierville\u003c\/strong\u003e, has shown us that the difference between an average installation and a well-planned one often comes down to the details that become invisible once the ceiling is closed. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe carry out this type of \u003cstrong\u003eHVAC installation in Montreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e, for both residential and commercial projects.\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen quote for your SENVILLE 18,000 BTU R454B cassette\u003c\/h3\u003e\n\u003cp\u003eAre you considering a \u003cstrong\u003eSENVILLE SENA R454B Ceiling Cassette Air Conditioner | 18000 BTU\u003c\/strong\u003e for a home, condo, office, or commercial space?\u003c\/p\u003e\n\u003cp\u003eContact AirGreen to verify the required capacity, ceiling structure, \u003cstrong\u003e1\/4 – 1\/2\u003c\/strong\u003e line-set routing, drainage, electrical supply, and eligibility for the \u003cstrong\u003e$1,788 LogisVert grant\u003c\/strong\u003e according to the conditions applicable at the time of installation.\u003c\/p\u003e\n\u003cp\u003eA successful ceiling cassette should be almost inconspicuous once the work is complete. All the important work lies precisely in what is no longer visible.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56120175624484,"sku":"SENA-18HF-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_18000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789060320"},{"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"},{"product_id":"cassette-de-plafond-1-voie-senville-sena-r454b-6000-btu","title":"1-Way Ceiling Cassette SENVILLE SENA R454B | 6000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 1-way cassette of only 6,000 BTU for heating and cooling a small area without occupying the upper part of a wall\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e6,000 BTU SENVILLE SENA 1-way ceiling cassette\u003c\/strong\u003e addresses a very specific problem we encounter in certain \u003cstrong\u003eair-conditioning and heating projects in Montreal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/strong\u003e: the room needs its own heat pump, but no wall location is truly suitable for a traditional indoor unit.\u003c\/p\u003e\n\u003cp\u003eA bedroom may have a large window, a full-height closet, and little available wall space. In an office, furniture, screens, and cabinets may occupy the best surfaces. In a high-end renovation, the owner may simply prefer a unit that is much more visually discreet.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA-06HF-1WCG\u003c\/strong\u003e therefore offers a different approach. The indoor unit is integrated into the ceiling and primarily distributes air in one direction. It retains the principle of a ductless heat pump, but with a very different presentation from a traditional wall-mounted head.\u003c\/p\u003e\n\u003cp\u003eThe system is based on:\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-1WCG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated capacity: 6,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 216623592\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 22.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 15.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2: 12.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant planned for the AirGreen configuration: 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\u003eHeating down to -30 °C\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: 208\/230 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: 12 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 15 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eVertical louver: automatic\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHorizontal louver: manual\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAdditional warranty: possible\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe attached brochure clearly identifies a Senville \u003cstrong\u003e1-Way\u003c\/strong\u003e 6,000 BTU cassette from the SENA family and presents this design as a ductless ceiling cassette heat pump. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy a 6,000 BTU capacity may be exactly what is needed\u003c\/h3\u003e\n\u003cp\u003eIn residential HVAC, we sometimes see a tendency to choose a higher capacity “to be sure.”\u003c\/p\u003e\n\u003cp\u003eThis reasoning can be counterproductive.\u003c\/p\u003e\n\u003cp\u003eA small bedroom, enclosed office, or small thermally insulated area does not necessarily need a 12,000 BTU heat pump. An oversized unit can quickly reach the requested temperature and then significantly reduce its output or multiply its cycles depending on the conditions.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e6,000 BTU SENA\u003c\/strong\u003e allows a small load to be targeted more precisely.\u003c\/p\u003e\n\u003cp\u003eSenville commercially recommends this size for an approximate area of \u003cstrong\u003e250 to 400 sq. ft.\u003c\/strong\u003e, noting that it may be suitable for bedrooms, offices, and small living areas. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, however, we consider this area a general indication, not a sizing rule.\u003c\/p\u003e\n\u003cp\u003eA 350 sq. ft. room with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e12-foot ceiling;\u003c\/li\u003e\n\u003cli\u003elarge windows;\u003c\/li\u003e\n\u003cli\u003esouth-facing orientation;\u003c\/li\u003e\n\u003cli\u003epoorly insulated walls;\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003emay require more capacity than a space of the same area that is well insulated and located in the center of a house.\u003c\/p\u003e\n\u003ch3\u003eA 1-way cassette is not a miniature 4-way cassette\u003c\/h3\u003e\n\u003cp\u003eThe term \u003cstrong\u003e1-way\u003c\/strong\u003e is important.\u003c\/p\u003e\n\u003cp\u003eA traditional square four-way cassette distributes air in several directions. The SENA-06HF-1WCG is designed differently: it produces a much more directional airflow.\u003c\/p\u003e\n\u003cp\u003eThis changes how we choose its location.\u003c\/p\u003e\n\u003cp\u003eWe generally try to direct the airflow along the length of the room rather than toward a nearby obstacle. In a rectangular bedroom, for example, this approach allows air to be projected from one end to the other.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specifications indicate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eautomatic vertical louver\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003emanual horizontal louver\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis means that the main swing can help distribute the air, but the cassette’s physical position remains decisive.\u003c\/p\u003e\n\u003ch3\u003eA wide but very shallow indoor unit\u003c\/h3\u003e\n\u003cp\u003eThe dimensions listed for the indoor unit are:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e50.31 × 13.19 × 8.98 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSenville’s technical table confirms these dimensions for the 6,000 BTU version. It also shows that the 9,000, 12,000, and 18,000 BTU models in this family use the same indoor format. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a particularly interesting detail in renovations.\u003c\/p\u003e\n\u003cp\u003eThe unit is long, but its height is less than 9 inches. This can facilitate certain projects where ceiling space is limited.\u003c\/p\u003e\n\u003cp\u003eNevertheless, you need to check what is actually above it:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ejoists;\u003c\/li\u003e\n\u003cli\u003eelectrical wires;\u003c\/li\u003e\n\u003cli\u003eplumbing;\u003c\/li\u003e\n\u003cli\u003eexisting ducts;\u003c\/li\u003e\n\u003cli\u003erecessed lighting;\u003c\/li\u003e\n\u003cli\u003ebeams;\u003c\/li\u003e\n\u003cli\u003eavailable space for the drain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe never recommend choosing a cassette based solely on a photo of the ceiling.\u003c\/p\u003e\n\u003ch3\u003eA common scenario: a bedroom where a wall-mounted head simply has no place\u003c\/h3\u003e\n\u003cp\u003eConsider a bedroom in \u003cstrong\u003eMontreal\u003c\/strong\u003e with a large window on the exterior wall, a built-in closet on the second wall, and a headboard occupying almost the entire third wall.\u003c\/p\u003e\n\u003cp\u003eTechnically, it may sometimes be possible to install a small wall-mounted unit above a door.\u003c\/p\u003e\n\u003cp\u003eHowever, this location can have several drawbacks:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epoorly directed airflow;\u003c\/li\u003e\n\u003cli\u003emore difficult access;\u003c\/li\u003e\n\u003cli\u003eunappealing appearance;\u003c\/li\u003e\n\u003cli\u003ecomplicated piping;\u003c\/li\u003e\n\u003cli\u003emore difficult condensation management.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA \u003cstrong\u003e1-way ceiling cassette\u003c\/strong\u003e can keep the walls clear while directing air along the length of the room.\u003c\/p\u003e\n\u003cp\u003eThis is precisely the type of situation where the indoor unit format becomes just as important as its BTU capacity.\u003c\/p\u003e\n\u003ch3\u003e22 SEER2 and an EER2 of 15: very good efficiency for a small capacity\u003c\/h3\u003e\n\u003cp\u003eThe technical specifications for the SENA-06HF-1WC indicate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 22.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 15\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2 Region 4: 12.0\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated COP: 3.75 W\/W\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 heat pump that can operate for many hours at a moderate load.\u003c\/p\u003e\n\u003cp\u003eHowever, it should be noted that there is a discrepancy in the brochure: the commercial section on the previous page mentions \u003cstrong\u003e20.5 SEER\u003c\/strong\u003e, while the technical specifications table indicates \u003cstrong\u003e22.0 SEER2\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a comparison between modern products, we favor the \u003cstrong\u003eSEER2 22.0\u003c\/strong\u003e figure corresponding to the 6,000 BTU version’s technical table.\u003c\/p\u003e\n\u003ch3\u003eHSPF2 12.0: particularly interesting for a small zone heated year-round\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eHSPF2 of 12.0\u003c\/strong\u003e indicates good seasonal heating efficiency for the corresponding test region.\u003c\/p\u003e\n\u003cp\u003eThis can be particularly useful when a room is used daily.\u003c\/p\u003e\n\u003cp\u003eFor example:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea home office;\u003c\/li\u003e\n\u003cli\u003ea primary bedroom;\u003c\/li\u003e\n\u003cli\u003ea quiet workshop;\u003c\/li\u003e\n\u003cli\u003ea small commercial space;\u003c\/li\u003e\n\u003cli\u003ea studio apartment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRather than heating the entire house more to make a single room comfortable, a dedicated heat pump can directly condition that area.\u003c\/p\u003e\n\u003ch3\u003e7,000 BTU at -8 °C and 8,100 BTU at -15 °C\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen data provided for this configuration indicate approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e7,000 BTU\/h at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e8,100 BTU\/h at -15 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe COP indicated at \u003cstrong\u003e-8 °C is 2.66\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThese values are particularly interesting for a heat pump rated at only 6,000 BTU, as they show that the unit can retain appreciable capacity in winter conditions well below freezing.\u003c\/p\u003e\n\u003cp\u003eHowever, sizing must always be compared with the room’s heat loss.\u003c\/p\u003e\n\u003cp\u003eA well-insulated interior bedroom does not perform like a sunroom or a corner room with two exterior walls.\u003c\/p\u003e\n\u003ch3\u003eDown to -30 °C: what this temperature really means\u003c\/h3\u003e\n\u003cp\u003eThe configuration is listed as \u003cstrong\u003eCOLD CLIMATE: Yes\u003c\/strong\u003e, and heating is specified down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure also confirms heating operation down to \u003cstrong\u003e-22 °F, or approximately -30 °C\u003c\/strong\u003e, and presents this family as a cold-climate heat pump. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, the minimum operating temperature is not synonymous with full rated capacity.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-30 °C\u003c\/strong\u003e, AirGreen data indicate approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e4,100 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCOP: 1.37\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis means that the heat pump continues to contribute to heating, but at a capacity lower than its rated value.\u003c\/p\u003e\n\u003cp\u003eFor a small room with low heat loss, 4,100 BTU\/h can still represent a very significant portion of the demand. For a highly exposed room, supplemental heating may become necessary.\u003c\/p\u003e\n\u003ch3\u003eThe COP of 1.37 at -30 °C deserves to be interpreted correctly\u003c\/h3\u003e\n\u003cp\u003eA COP of \u003cstrong\u003e1,37\u003c\/strong\u003e means that, under the corresponding conditions, the heat pump provides approximately 1.37 units of heat for one unit of electrical energy used in the refrigeration cycle.\u003c\/p\u003e\n\u003cp\u003eThis performance is lower than at -8 °C, which is normal.\u003c\/p\u003e\n\u003cp\u003eAs the outdoor temperature drops, the heat pump has less heat to extract from the outdoor air. It must also manage defrost cycles and more demanding conditions for the compressor.\u003c\/p\u003e\n\u003cp\u003eThe point of a cold-climate model is precisely to maintain useful operation when several older heat pumps would already have stopped operating or significantly limited their output.\u003c\/p\u003e\n\u003ch3\u003eA small outdoor unit suited to projects where space is limited\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e30.12 × 11.93 × 21.85 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSenville's technical documentation confirms these dimensions for the 6,000 BTU model. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis represents an obvious advantage in urban environments.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eMontreal\u003c\/strong\u003e or certain areas of \u003cstrong\u003eLongueuil\u003c\/strong\u003e, passages between buildings can be narrow. Every inch counts when it is also necessary to comply with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eventilation clearances;\u003c\/li\u003e\n\u003cli\u003eservice access;\u003c\/li\u003e\n\u003cli\u003eaccess to the yard;\u003c\/li\u003e\n\u003cli\u003ewindows;\u003c\/li\u003e\n\u003cli\u003eproperty lines;\u003c\/li\u003e\n\u003cli\u003econdominium restrictions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA more compact unit facilitates certain installations without eliminating the need for good ventilation around the condenser.\u003c\/p\u003e\n\u003ch2\u003eInstallation, ceiling, drainage, and R-454B: the points we check before recommending this Senville cassette\u003c\/h2\u003e\n\u003ch3\u003eThe ceiling must be inspected before even discussing finishing\u003c\/h3\u003e\n\u003cp\u003eA cassette is not simply a wall-mounted unit moved horizontally.\u003c\/p\u003e\n\u003cp\u003eAn adequate mechanical space must be created in the ceiling.\u003c\/p\u003e\n\u003cp\u003eBefore proposing the SENA-06HF-1WCG, we check in particular:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe direction of the joists;\u003c\/li\u003e\n\u003cli\u003eavailable space;\u003c\/li\u003e\n\u003cli\u003eheadroom;\u003c\/li\u003e\n\u003cli\u003ehidden obstacles;\u003c\/li\u003e\n\u003cli\u003ethe location of the drain;\u003c\/li\u003e\n\u003cli\u003ethe path of the piping;\u003c\/li\u003e\n\u003cli\u003efuture accessibility for maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a finished ceiling, an error of a few inches can turn a simple project into a much more extensive carpentry job.\u003c\/p\u003e\n\u003ch3\u003eDrainage is often the most underestimated aspect\u003c\/h3\u003e\n\u003cp\u003eIn air conditioning, the cassette produces condensation water.\u003c\/p\u003e\n\u003cp\u003eThis water must be drained reliably.\u003c\/p\u003e\n\u003cp\u003eFor a wall-mounted unit installed on an exterior wall, a gravity drain can often exit directly.\u003c\/p\u003e\n\u003cp\u003eWith a cassette located in the center of a room, the route can be much less direct.\u003c\/p\u003e\n\u003cp\u003eWe are therefore seeking to determine:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ewhere the condensate line runs;\u003c\/li\u003e\n\u003cli\u003ewhether a continuous slope is possible;\u003c\/li\u003e\n\u003cli\u003ewhere the water can be discharged;\u003c\/li\u003e\n\u003cli\u003ewhether a pump is necessary;\u003c\/li\u003e\n\u003cli\u003ehow the system will remain accessible for maintenance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eA drainage problem in the ceiling can cause much more damage than a simple visible leak beneath a wall-mounted unit.\u003c\/p\u003e\n\u003ch3\u003eThe 1\/4 in. – 3\/8 in. piping must be respected.\u003c\/h3\u003e\n\u003cp\u003eThe configuration requires:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e1\/4 in. liquid\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e3\/8 in. gas\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe brochure’s technical table confirms these dimensions for the 6,000 BTU version. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDuring a renovation, we therefore do not assume that existing piping can be reused simply because it already runs to the right location.\u003c\/p\u003e\n\u003cp\u003eThe dimensions, condition, and compatibility must be verified.\u003c\/p\u003e\n\u003ch3\u003eR-454B: a significant difference between the AirGreen configuration and the attached brochure\u003c\/h3\u003e\n\u003cp\u003eThe current configuration communicated for the AirGreen page clearly indicates \u003cstrong\u003eR-454B\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eHowever, the attached brochure contains a reference to \u003cstrong\u003eR410A\u003c\/strong\u003e, with a stated precharge of up to 25 ft and additional refrigerant required for certain greater lengths. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis statement therefore does not correspond to the R-454B data provided for the current configuration \u003cstrong\u003eSENA-06HF-OG + SENA-06HF-1WCG\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWe do not mix up these two pieces of information.\u003c\/p\u003e\n\u003cp\u003eFor an actual installation, we must always refer:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eto the rating plate of the equipment delivered;\u003c\/li\u003e\n\u003cli\u003eto the manual corresponding to this revision;\u003c\/li\u003e\n\u003cli\u003eto the exact model number;\u003c\/li\u003e\n\u003cli\u003eto the refrigerant specified for this combination.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor the current AirGreen configuration, the product is presented with \u003cstrong\u003eR-454B\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eAnother documentation inconsistency to be aware of: SENA-06HF-1WC and SENA-06HF-1WCG\u003c\/h3\u003e\n\u003cp\u003eThe brochure identifies the indoor unit as \u003cstrong\u003eSENA-06HF-1WC\u003c\/strong\u003e, while the AirGreen data indicates \u003cstrong\u003eSENA-06HF-1WCG\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe difference may reflect a reference update, a configuration suffix, or a product revision.\u003c\/p\u003e\n\u003cp\u003eFor AirGreen, the rule remains the same: when ordering and installing, we verify the exact pairing corresponding to the AHRI number. \u003cstrong\u003e216623592\u003c\/strong\u003e rather than relying solely on the product family’s commercial name.\u003c\/p\u003e\n\u003ch3\u003eMCA 12 A and MOP 15 A: a relatively moderate electrical load\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen configuration indicates:\u003c\/p\u003e\n\u003cul\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\u003cli\u003e\u003cstrong\u003epower supply: 220 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe brochure also confirms a \u003cstrong\u003e208\/230 V, 60 Hz, single-phase\u003c\/strong\u003e power supply for this family. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe electrical capacity must nevertheless be checked at the panel.\u003c\/p\u003e\n\u003cp\u003eA small appliance does not exempt the installation from applicable circuit, protection, and wiring requirements.\u003c\/p\u003e\n\u003ch3\u003eOptional Wi-Fi: useful in an office or a room used intermittently\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWi-Fi is available as an option\u003c\/strong\u003e on the AirGreen configuration.\u003c\/p\u003e\n\u003cp\u003eFor a small area, this feature can be particularly convenient.\u003c\/p\u003e\n\u003cp\u003eFor example, a homeowner can:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epreheat an office before starting work;\u003c\/li\u003e\n\u003cli\u003elower the setpoint in an unused bedroom;\u003c\/li\u003e\n\u003cli\u003eadjust the air conditioning before bedtime;\u003c\/li\u003e\n\u003cli\u003econtrol a room located on another floor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWi-Fi does not change the heat pump’s mechanical performance, but it can improve how it is used.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR and AHRI: two useful references for validating the configuration\u003c\/h3\u003e\n\u003cp\u003eThe SENVILLE is listed as \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e, and the brochure confirms ENERGY STAR certification as well as AHRI certification for this product family. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen configuration specifies the number \u003cstrong\u003eAHRI 216623592\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhen a homeowner wants to verify eligibility for a program or compare several heat pumps, we always recommend using the AHRI number for the exact matched system rather than comparing brands alone.\u003c\/p\u003e\n\u003ch3\u003eWarranty: what the documents show\u003c\/h3\u003e\n\u003cp\u003eAirGreen data indicate a \u003cstrong\u003e10-10-0 manufacturer’s warranty\u003c\/strong\u003e, with the option to add an extended warranty.\u003c\/p\u003e\n\u003cp\u003eThe brochure provided, 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\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\u003eBecause the conditions may depend on the exact product version and registration, we always confirm the applicable warranty as part of the final quotation.\u003c\/p\u003e\n\u003ch3\u003eSelf-cleaning, leak detection, and self-diagnosis\u003c\/h3\u003e\n\u003cp\u003eThe brochure mentions several useful maintenance features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eself-cleaning mode\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eleak detection\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eself-diagnosis\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ediagnostic display;\u003c\/li\u003e\n\u003cli\u003einverter technology;\u003c\/li\u003e\n\u003cli\u003elow-temperature operation;\u003c\/li\u003e\n\u003cli\u003edrain pan protection and PTC heating belt. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese functions can help maintain the system and detect certain anomalies.\u003c\/p\u003e\n\u003cp\u003eHowever, they do not replace mechanical maintenance.\u003c\/p\u003e\n\u003cp\u003eA ceiling-mounted cassette must remain accessible for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eclean the filters;\u003c\/li\u003e\n\u003cli\u003einspect the coil;\u003c\/li\u003e\n\u003cli\u003eclean the drain pan;\u003c\/li\u003e\n\u003cli\u003echeck the drain;\u003c\/li\u003e\n\u003cli\u003eaccess the internal components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is something we incorporate into the design from the very beginning.\u003c\/p\u003e\n\u003ch3\u003eA cassette can be visually discreet, but it must remain accessible\u003c\/h3\u003e\n\u003cp\u003eWe often emphasize this rule during our HVAC installations.\u003c\/p\u003e\n\u003cp\u003eDuring a renovation, it may be tempting to integrate the unit very tightly so that it almost completely disappears into the ceiling.\u003c\/p\u003e\n\u003cp\u003eBut a system that cannot be properly serviced quickly becomes problematic.\u003c\/p\u003e\n\u003cp\u003eWe therefore always plan the necessary access to the filters and main components.\u003c\/p\u003e\n\u003cp\u003eAesthetics and maintenance must be considered together.\u003c\/p\u003e\n\u003ch3\u003eFor what type of room is this 6,000 BTU cassette particularly suitable?\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003eSENVILLE SENA 6,000 BTU 1-Way\u003c\/strong\u003e may be particularly suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea bedroom;\u003c\/li\u003e\n\u003cli\u003ea small office;\u003c\/li\u003e\n\u003cli\u003ea consultation room;\u003c\/li\u003e\n\u003cli\u003ea studio;\u003c\/li\u003e\n\u003cli\u003ea small living room;\u003c\/li\u003e\n\u003cli\u003ea space where the walls are already occupied;\u003c\/li\u003e\n\u003cli\u003ea project where the appearance of a wall-mounted unit is undesirable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe brochure itself indicates an approximate range of \u003cstrong\u003e250 to 400 sq. ft.\u003c\/strong\u003e for this model. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, however, we assess the capacity based on the actual needs and the building’s configuration.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose a 1-Way Cassette Rather Than a Traditional Wall-Mounted Unit\u003c\/h3\u003e\n\u003cp\u003eThe main advantage is not that the cassette “heats better.”\u003c\/p\u003e\n\u003cp\u003eBoth technologies use the same heat pump principle.\u003c\/p\u003e\n\u003cp\u003eThe difference lies primarily in \u003cstrong\u003earchitectural integration and air distribution\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA 1-way cassette may be preferable when:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe walls must remain unobstructed;\u003c\/li\u003e\n\u003cli\u003ethe unit must be visually more discreet;\u003c\/li\u003e\n\u003cli\u003ethe airflow must follow the length of the room;\u003c\/li\u003e\n\u003cli\u003ethe location of a wall-mounted unit would be too low or too far off-center.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA wall-mounted unit may still be preferable when easy access, a lower installation cost, and direct drainage are priorities.\u003c\/p\u003e\n\u003cp\u003eWe therefore choose between the two based on the project, not according to a general rule.\u003c\/p\u003e\n\u003ch3\u003eWhy AirGreen Pays Particular Attention to This Type of Installation\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, a ceiling cassette requires more precise coordination than a typical wall-mounted installation.\u003c\/p\u003e\n\u003cp\u003eWe must consider the following simultaneously:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eof the heating capacity;\u003c\/li\u003e\n\u003cli\u003eof the ceiling;\u003c\/li\u003e\n\u003cli\u003eof the structure;\u003c\/li\u003e\n\u003cli\u003eof the drainage;\u003c\/li\u003e\n\u003cli\u003eof the electrical system;\u003c\/li\u003e\n\u003cli\u003eof the piping;\u003c\/li\u003e\n\u003cli\u003eof future access;\u003c\/li\u003e\n\u003cli\u003eof the interior finish;\u003c\/li\u003e\n\u003cli\u003eof the outdoor unit location.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWith a small \u003cstrong\u003e6,000 BTU\u003c\/strong\u003e heat pump, poor installation can have a proportionally large impact.\u003c\/p\u003e\n\u003cp\u003eA poorly designed drain, a location that obstructs airflow, or an oversized unit can significantly reduce the quality of the result.\u003c\/p\u003e\n\u003ch3\u003eContact AirGreen for your 6,000 BTU SENVILLE 1-Way Cassette\u003c\/h3\u003e\n\u003cp\u003eAre you considering a \u003cstrong\u003e6,000 BTU SENVILLE SENA R454B ceiling cassette\u003c\/strong\u003e for a bedroom, office, or small area?\u003c\/p\u003e\n\u003cp\u003eContact \u003cstrong\u003eAirGreen\u003c\/strong\u003e for a technical assessment. We can check the required capacity, the available ceiling space, drainage, the piping route, the electrical supply, and the optimal location for the indoor unit.\u003c\/p\u003e\n\u003cp\u003eWe carry out \u003cstrong\u003eheat pump and ceiling cassette installations in Montreal, Laval, Longueuil, the North Shore, the South Shore, and Montérégie\u003c\/strong\u003e, with particular attention to finishing, winter operation, and accessibility for maintenance.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56120175690020,"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\/00_CASSETTE_DE_PLAFOND_1_VOIE_SENVILLE_AURA_R454B_6000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789060399"},{"product_id":"cassette-de-plafond-1-voie-senville-sena-r454b-9000-btu","title":"1-Way Ceiling Cassette SENVILLE SENA R454B | 9000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 9,000 BTU 1-way cassette designed for rooms with limited wall space, with heating down to -30 °C\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA R454B 9,000 BTU 1-Way Ceiling Cassette\u003c\/strong\u003e meets a need we regularly encounter in \u003cstrong\u003eHVAC installations in Montreal, Laval, Longueuil, on the South Shore and the North Shore\u003c\/strong\u003e: efficiently cooling and heating a room without installing a conventional wall-mounted unit in plain sight.\u003c\/p\u003e\n\u003cp\u003eThis configuration pairs the \u003cstrong\u003eSENA-09HF-OG\u003c\/strong\u003e outdoor unit with the \u003cstrong\u003eSENA-09HF-1WCG\u003c\/strong\u003e indoor unit, under reference \u003cstrong\u003eAHRI 216623593\u003c\/strong\u003e. Senville documentation presents the model as a \u003cstrong\u003e1-Way\u003c\/strong\u003e ceiling cassette, meaning it primarily distributes air in one direction, with a rated cooling capacity of \u003cstrong\u003e9,000 BTU\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis format is very different from a square four-way cassette. The indoor unit is long and relatively slim, allowing it to fit into certain ceiling configurations where a traditional square cassette would be less suitable.\u003c\/p\u003e\n\u003cp\u003eFor the 9,000 BTU version, the AirGreen specifications state, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eoutdoor unit: SENA-09HF-OG\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eindoor unit: SENA-09HF-1WCG\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAHRI: 216623593\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eR-454B\u003c\/strong\u003e;\u003c\/li\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\u003e\n\u003cstrong\u003eSEER2: 24.0\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEER2: 14.6\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSPF2-4: 12.1\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eheating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e9,000 BTU\/h at -8 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10,600 BTU\/h at -15 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5,100 BTU\/h maximum at -30 °C\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional WiFi\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003epower supply \u003cstrong\u003e208\/230 V\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003epiping \u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMCA 15 A \/ MOP 15 A\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe technical table in the brochure specific to the \u003cstrong\u003eSENA-09HF-1WC\u003c\/strong\u003e confirms, among other things, a 208\/230 V single-phase power supply, a cooling capacity of 9,000 BTU, a \u003cstrong\u003eSEER2 of 24.0\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 14.6\u003c\/strong\u003e, a rated heating capacity of 10,900 BTU, an \u003cstrong\u003eHSPF2-4 of 12.1\u003c\/strong\u003e, and a rated COP of 3.71. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhat really distinguishes a 1-way cassette from a conventional square cassette\u003c\/h3\u003e\n\u003cp\u003eA four-way cassette installed near the center of a room generally distributes air across several sides. The \u003cstrong\u003eSENVILLE 1-Way\u003c\/strong\u003e cassette takes a different approach: its rectangular format allows it to project air mainly in a chosen direction.\u003c\/p\u003e\n\u003cp\u003eThis can be particularly useful in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea long bedroom;\u003c\/li\u003e\n\u003cli\u003ea rectangular office;\u003c\/li\u003e\n\u003cli\u003ea meeting room;\u003c\/li\u003e\n\u003cli\u003ea widened corridor;\u003c\/li\u003e\n\u003cli\u003ea narrow commercial space;\u003c\/li\u003e\n\u003cli\u003ea space where the unit must be placed near one side of the ceiling rather than exactly in the center.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe main benefit is therefore not merely aesthetic. It also concerns \u003cstrong\u003ehow the air is distributed\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn a long room, a poorly chosen cassette may send a great deal of air around its installation point without properly reaching the opposite end. A 1-way cassette, by contrast, can be oriented to promote more longitudinal airflow.\u003c\/p\u003e\n\u003ch3\u003eAn indoor format very different from square cassettes\u003c\/h3\u003e\n\u003cp\u003eThe documentation specifies the following for the indoor cassette:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e50.31 in. wide × 13.19 in. deep × 8.98 in. high\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis long, shallow geometry explains the model’s appeal.\u003c\/p\u003e\n\u003cp\u003eHowever, “only 8.98 inches high” should not be confused with “easy to install in every ceiling.”\u003c\/p\u003e\n\u003cp\u003eBefore installing a ceiling cassette, we must check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe direction of the joists;\u003c\/li\u003e\n\u003cli\u003ethe free space above the drywall;\u003c\/li\u003e\n\u003cli\u003eplumbing pipes;\u003c\/li\u003e\n\u003cli\u003eelectrical cables;\u003c\/li\u003e\n\u003cli\u003eventilation ducts;\u003c\/li\u003e\n\u003cli\u003ethe structure;\u003c\/li\u003e\n\u003cli\u003ethe drain route;\u003c\/li\u003e\n\u003cli\u003efuture access for servicing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn some \u003cstrong\u003eMontreal\u003c\/strong\u003e buildings, the ceiling may appear thick enough from the room, but the available structure does not allow a unit more than 50 inches long to be inserted in the desired direction.\u003c\/p\u003e\n\u003ch3\u003eWhy this configuration can be particularly useful in a renovation\u003c\/h3\u003e\n\u003cp\u003eLet’s consider a representative scenario.\u003c\/p\u003e\n\u003cp\u003eA renovated bedroom has a large window on one wall, a closet on the second, a headboard on the third, and built-in furniture on the last.\u003c\/p\u003e\n\u003cp\u003eA wall-mounted heat pump could be installed, but its location would be dictated by constraints rather than optimal air circulation.\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003e1-way ceiling cassette\u003c\/strong\u003e completely frees up the walls and allows the airflow to be directed along the length of the room.\u003c\/p\u003e\n\u003cp\u003eThis is exactly the kind of situation where the ceiling becomes a much more logical location than the wall.\u003c\/p\u003e\n\u003ch3\u003e9,000 BTU: a capacity suited to small and medium-sized rooms\u003c\/h3\u003e\n\u003cp\u003eThe brochure describes this model as suitable for spaces of approximately \u003cstrong\u003e250 to 400 sq. ft.\u003c\/strong\u003e, including bedrooms, offices, and studios. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we use this range as an indication only.\u003c\/p\u003e\n\u003cp\u003eA 350 sq. ft. room may require significantly more or less than 9,000 BTU depending on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewindow area;\u003c\/li\u003e\n\u003cli\u003esun exposure;\u003c\/li\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003ethe number of exterior walls;\u003c\/li\u003e\n\u003cli\u003ethe floor;\u003c\/li\u003e\n\u003cli\u003eair infiltration;\u003c\/li\u003e\n\u003cli\u003ethe room’s use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA south-facing room with large windows can have a much higher cooling load than a better-protected interior room.\u003c\/p\u003e\n\u003ch3\u003eSEER2 24.0: the key technical specification for this 9,000 BTU version\u003c\/h3\u003e\n\u003cp\u003eThe brochure contains a particular detail here that is best explained clearly.\u003c\/p\u003e\n\u003cp\u003eThe general commercial section of the page mentions \u003cstrong\u003e20.5 SEER\u003c\/strong\u003e for the series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, the detailed technical table specific to the \u003cstrong\u003eSENA-09HF-1WC\u003c\/strong\u003e indicates \u003cstrong\u003eSEER2 24.0\u003c\/strong\u003e, a value that also matches the AirGreen specifications. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor this specific 9,000 BTU combination, we therefore use \u003cstrong\u003eSEER2 24.0\u003c\/strong\u003e as the model-specific figure.\u003c\/p\u003e\n\u003cp\u003eThe same table indicates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEER2 14.6\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSPF2-4 12.1\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated COP 3.71\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese are interesting figures for a small ceiling heat pump designed to operate for both cooling and heating.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -30 °C, but with capacity that varies according to temperature\u003c\/h3\u003e\n\u003cp\u003eSenville clearly indicates heating operation 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 specifications nevertheless provide further detail by listing the actual capacities at several temperatures:\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 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\u003e9,000 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\u003e10,600 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\u003e5,100 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\u003eAt \u003cstrong\u003e-15 °C\u003c\/strong\u003e, the available capacity therefore remains higher than the 9,000 BTU associated with the rated cooling capacity.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-30 °C\u003c\/strong\u003e, the unit continues to produce heat, but its maximum capacity decreases significantly.\u003c\/p\u003e\n\u003ch3\u003eWhat the 5,100 BTU figure at -30 °C actually means\u003c\/h3\u003e\n\u003cp\u003eImagine that a room loses 7,500 BTU\/h when the outdoor temperature reaches -30 °C.\u003c\/p\u003e\n\u003cp\u003eIf the heat pump can then produce approximately \u003cstrong\u003e5,100 BTU\/h maximum\u003c\/strong\u003e, about 2,400 BTU\/h of heat loss remains to be covered by another heating source.\u003c\/p\u003e\n\u003cp\u003eThat is why we never present the statement \u003cstrong\u003e“heating down to -30 °C”\u003c\/strong\u003e as a guarantee that the unit can heat any room on its own at that temperature.\u003c\/p\u003e\n\u003cp\u003eSizing must compare:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe heat pump’s available capacity;\u003c\/li\u003e\n\u003cli\u003ethe space’s actual heat loss;\u003c\/li\u003e\n\u003cli\u003ethe outdoor temperature.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis analysis is particularly important in \u003cstrong\u003eMontréal, Laval, Longueuil, on the North Shore and the South Shore\u003c\/strong\u003e, where winter temperatures can vary considerably.\u003c\/p\u003e\n\u003ch3\u003eCold Climate and ENERGY STAR®\u003c\/h3\u003e\n\u003cp\u003eThe documentation presents the system as \u003cstrong\u003eENERGY STAR®\u003c\/strong\u003e-certified and capable of operating in heating mode down to -30 °C. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specifications also identify it as \u003cstrong\u003eCold Climate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis allows this ceiling cassette to be considered as more than just a summer cooling solution. When properly sized, it can provide a significant portion of the room’s seasonal heating.\u003c\/p\u003e\n\u003ch2\u003eInstallation, R-454B, and maintenance: why a 1-way cassette requires more preparation than a wall-mounted unit\u003c\/h2\u003e\n\u003ch3\u003eA 50-inch cassette requires choosing the correct orientation before opening the ceiling\u003c\/h3\u003e\n\u003cp\u003eThe first issue is physical.\u003c\/p\u003e\n\u003cp\u003eThe indoor unit is more than \u003cstrong\u003e50 inches long\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe must therefore determine not only where the cassette will be visible, but also in which direction the unit body can be positioned above the ceiling.\u003c\/p\u003e\n\u003cp\u003eA 90-degree difference in orientation can make the difference between a simple installation and an impossible one because of the joists.\u003c\/p\u003e\n\u003ch3\u003eDrainage is one of the most sensitive aspects of a cassette\u003c\/h3\u003e\n\u003cp\u003eEvery heat pump produces condensation in cooling mode.\u003c\/p\u003e\n\u003cp\u003eWith a wall-mounted head installed on an exterior wall, the drain can sometimes exit almost directly outdoors.\u003c\/p\u003e\n\u003cp\u003eWith a cassette located farther into the room, it is often necessary to travel several feet before reaching a drainage point.\u003c\/p\u003e\n\u003cp\u003eWe must therefore examine:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe available slope;\u003c\/li\u003e\n\u003cli\u003ethe unit height;\u003c\/li\u003e\n\u003cli\u003ethe pipe route;\u003c\/li\u003e\n\u003cli\u003eobstacles;\u003c\/li\u003e\n\u003cli\u003efuture access;\u003c\/li\u003e\n\u003cli\u003ethe possibility of servicing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA ceiling drainage problem can have much more serious consequences than an improperly positioned wall drain, since a leak can damage the drywall, paint, or furniture located directly below the unit.\u003c\/p\u003e\n\u003ch3\u003eR-454B and precharge for 25 feet\u003c\/h3\u003e\n\u003cp\u003eThe cassette operates with \u003cstrong\u003eR-454B\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe documentation indicates that the system is precharged for piping up to \u003cstrong\u003e25 feet\u003c\/strong\u003e. An installation with a 50-foot set requires refrigerant to be added on site. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specifications indicate piping:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer’s table confirms these diameters for the 9,000 BTU model:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eliquid line: 1\/4 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003egas line: 3\/8 in\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy the piping route may be longer than with a wall-mounted heat pump\u003c\/h3\u003e\n\u003cp\u003eA ceiling cassette is not necessarily located near an exterior wall.\u003c\/p\u003e\n\u003cp\u003eThe refrigerant circuit may need to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epass through the ceiling;\u003c\/li\u003e\n\u003cli\u003ego around a beam;\u003c\/li\u003e\n\u003cli\u003erun down inside a wall;\u003c\/li\u003e\n\u003cli\u003ereach the outdoor unit on another level.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe visual distance between the two units is therefore never sufficient to estimate the piping length.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we plan this routing before the finishing work when the project allows.\u003c\/p\u003e\n\u003ch3\u003ePower supply: 208\/230 V\u003c\/h3\u003e\n\u003cp\u003eThe technical documentation indicates a power supply:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e208\/230 V, 60 Hz, single-phase\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specifications also indicate:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMCA: 15 A\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMOP: 15 A\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis information must be verified against the nameplate of the equipment actually delivered before the final electrical installation.\u003c\/p\u003e\n\u003ch3\u003eThe outdoor unit remains relatively compact\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit associated with the 9,000 BTU model measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e31.69 in × 12.99 in × 21.81 in\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis format facilitates certain residential installations where available space is limited.\u003c\/p\u003e\n\u003cp\u003eAs always, the necessary clearances around the unit must nevertheless be respected, and the following must be taken into account:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewindows;\u003c\/li\u003e\n\u003cli\u003eneighbors;\u003c\/li\u003e\n\u003cli\u003esnow;\u003c\/li\u003e\n\u003cli\u003edrainage;\u003c\/li\u003e\n\u003cli\u003eaccess for servicing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAutomatic vertical louver and manual horizontal orientation\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet 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 orientation: manual\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis configuration is consistent with the logic of a 1-way cassette: we carefully determine the airflow direction to send air where it is needed, then the automatic vertical louver adjusts the projection.\u003c\/p\u003e\n\u003cp\u003eIn a long room, this orientation must be considered when choosing the location.\u003c\/p\u003e\n\u003ch3\u003eOptional WiFi\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWiFi is available as an option\u003c\/strong\u003e according to the AirGreen specification sheet.\u003c\/p\u003e\n\u003cp\u003eFor an office, commercial space, or intermittently used room, this function can facilitate:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eremote adjustment;\u003c\/li\u003e\n\u003cli\u003eschedules;\u003c\/li\u003e\n\u003cli\u003eadjusting it before arrival;\u003c\/li\u003e\n\u003cli\u003ereducing the setpoint during an absence.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe recommend specifying this option in the quote if it is an important criterion.\u003c\/p\u003e\n\u003ch3\u003eSelf-diagnostics, leak detection, and self-cleaning\u003c\/h3\u003e\n\u003cp\u003eThe brochure mentions several useful functions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eleak detection;\u003c\/li\u003e\n\u003cli\u003ediagnostic display;\u003c\/li\u003e\n\u003cli\u003eself-cleaning mode;\u003c\/li\u003e\n\u003cli\u003einverter technology;\u003c\/li\u003e\n\u003cli\u003elow-temperature operation;\u003c\/li\u003e\n\u003cli\u003eFollow Me function;\u003c\/li\u003e\n\u003cli\u003eself-diagnostic system. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese functions can facilitate operation and certain diagnostics, but they do not replace \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe cassette must remain accessible for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eclean the filters;\u003c\/li\u003e\n\u003cli\u003einspect the heat exchanger;\u003c\/li\u003e\n\u003cli\u003echeck the drain;\u003c\/li\u003e\n\u003cli\u003ework on the internal components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eA common mistake: recessing the unit without considering future servicing\u003c\/h3\u003e\n\u003cp\u003eA cassette that is perfectly integrated visually but difficult to access represents a poor installation choice.\u003c\/p\u003e\n\u003cp\u003eWe want to know from the outset:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ehow to remove the filter;\u003c\/li\u003e\n\u003cli\u003ehow to access the condensate pan;\u003c\/li\u003e\n\u003cli\u003ehow to inspect the drain;\u003c\/li\u003e\n\u003cli\u003ehow to access the connections;\u003c\/li\u003e\n\u003cli\u003ehow to replace a part without demolishing the ceiling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis point is particularly important in a newly renovated commercial space or residence.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a discrepancy between the AirGreen specification sheet and Senville documentation\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet states:\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 the possibility of additional warranty coverage.\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure instead 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\u003eThis difference must be validated according to AirGreen’s terms, the registration, and the program applicable to the equipment sold.\u003c\/p\u003e\n\u003cp\u003eWe prefer to clearly confirm the actual coverage in the quote rather than leave the owner to interpret a simple “10-year warranty” mention.\u003c\/p\u003e\n\u003ch3\u003eWhen we particularly recommend the SENVILLE 9,000 BTU 1-way cassette\u003c\/h3\u003e\n\u003cp\u003eThis configuration becomes particularly appealing when:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eavailable wall space is limited;\u003c\/li\u003e\n\u003cli\u003ethe room is long or rectangular;\u003c\/li\u003e\n\u003cli\u003eprimarily directional air projection is desired;\u003c\/li\u003e\n\u003cli\u003ethe ceiling allows a 50.31 in unit to be recessed;\u003c\/li\u003e\n\u003cli\u003ea small-capacity heat pump is genuinely suited to the load;\u003c\/li\u003e\n\u003cli\u003ethe owner is seeking an \u003cstrong\u003eENERGY STAR® and Cold Climate\u003c\/strong\u003e solution;\u003c\/li\u003e\n\u003cli\u003eheating down to -30°C is an advantage;\u003c\/li\u003e\n\u003cli\u003ethe room's aesthetics favor a ceiling installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen a wall-mounted unit remains the more logical choice\u003c\/h3\u003e\n\u003cp\u003eThe cassette is not automatically the best solution.\u003c\/p\u003e\n\u003cp\u003eA wall-mounted heat pump may be preferable when:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethere is no accessible space above the ceiling;\u003c\/li\u003e\n\u003cli\u003ethe joists prevent integration;\u003c\/li\u003e\n\u003cli\u003edrainage is too complex;\u003c\/li\u003e\n\u003cli\u003ethe finished ceiling must not be opened;\u003c\/li\u003e\n\u003cli\u003ea suitable wall location already exists.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn this case, spending more on ceiling work to install a cassette does not necessarily produce a better result.\u003c\/p\u003e\n\u003ch3\u003eWhy entrust this type of installation to AirGreen\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003e1-way ceiling cassette\u003c\/strong\u003e requires precise coordination between the mechanical systems, ceiling, drainage, refrigerant piping, and electrical work.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we specifically check:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe room's heating and cooling load;\u003c\/li\u003e\n\u003cli\u003ethe optimal air-distribution location;\u003c\/li\u003e\n\u003cli\u003ethe joists' orientation;\u003c\/li\u003e\n\u003cli\u003ethe available ceiling depth;\u003c\/li\u003e\n\u003cli\u003edrainage;\u003c\/li\u003e\n\u003cli\u003ethe line length;\u003c\/li\u003e\n\u003cli\u003ethe \u003cstrong\u003e1\/4 in – 3\/8 in\u003c\/strong\u003e piping;\u003c\/li\u003e\n\u003cli\u003ethe electrical supply;\u003c\/li\u003e\n\u003cli\u003ethe outdoor unit location;\u003c\/li\u003e\n\u003cli\u003efuture access for maintenance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWe carry out \u003cstrong\u003eHVAC projects in Montreal, Laval, Longueuil, on the South Shore, the North Shore, and in Montérégie\u003c\/strong\u003e, both in residential properties and commercial spaces where a ceiling cassette offers a concrete advantage.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA R454B 9,000 BTU 1-Way Cassette\u003c\/strong\u003e combines a very slim indoor unit, a \u003cstrong\u003e24.0 SEER2\u003c\/strong\u003e, a \u003cstrong\u003e14.6 EER2\u003c\/strong\u003e, a \u003cstrong\u003e12.1 HSPF2-4\u003c\/strong\u003e, 1\/4 in – 3\/8 in piping, ENERGY STAR certification, and heating operation down to -30°C. The manufacturer's technical table confirms these specifications precisely for the 9,000 BTU version. \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 1-way ceiling cassette, to check whether your ceiling is suitable for this type of installation, and to plan a complete HVAC project 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":56120175722788,"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_1_VOIE_SENVILLE_AURA_R454B_9000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789060407"},{"product_id":"cassette-de-plafond-1-voie-senville-sena-r454b-12000-btu","title":"1-Way Ceiling Cassette SENVILLE SENA R454B | 12000 BTU","description":"\u003ch2\u003eA linear cassette designed for rooms where air distribution should follow the architecture rather than occupy it\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA R454B 12,000 BTU 1-Way Ceiling Cassette\u003c\/strong\u003e offers a very different solution from a traditional wall-mounted heat pump. Here, the indoor unit does not occupy a wall above a window, sofa, or piece of furniture: it is integrated into the ceiling and distributes air primarily in one direction. This design can be particularly appealing for certain residential renovations, offices, businesses, wide corridors, rectangular rooms, and spaces where the interior layout leaves little available wall space.\u003c\/p\u003e\n\u003cp\u003eThe combination presented by AirGreen pairs the \u003cstrong\u003eSENA-12HF-OG\u003c\/strong\u003e outdoor unit with the \u003cstrong\u003eSENA-12HF-1WCG\u003c\/strong\u003e indoor unit, under \u003cstrong\u003eAHRI 216623594\u003c\/strong\u003e. Senville documentation identifies the family as \u003cstrong\u003eSENA-12HF-1WC\u003c\/strong\u003e and presents it as a 12,000 BTU 1-way ceiling cassette operating in both cooling and heating modes. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor our \u003cstrong\u003eHVAC projects in Montreal, Laval, Longueuil, on the South Shore and the North Shore\u003c\/strong\u003e, this type of unit becomes especially appealing when we want to keep the walls clear while achieving more structured air distribution. However, its selection requires thorough preparation: ceiling space, service access, piping, drainage, and the exact position of the air outlet must all be considered before work begins.\u003c\/p\u003e\n\u003ch3\u003eKey specifications of the SENVILLE 12,000 BTU 1-Way\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen information sheet for this combination indicates, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003ecooling capacity: 12,000 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: 10.0\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\u003eheating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eWiFi available \u003cstrong\u003eas an option\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003epower supply \u003cstrong\u003e220 V\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003epiping \u003cstrong\u003e1\/4 in. – 3\/8 in.\u003c\/strong\u003e\n\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\u003eadvertised provincial rebate: \u003cstrong\u003e1 152 $\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSenville’s technical table confirms that the 12,000 BTU model has a \u003cstrong\u003eSEER2 of 23.0\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 13\u003c\/strong\u003e, a \u003cstrong\u003eRegion 4 HSPF2 of 10.0\u003c\/strong\u003e, a rated heating capacity of \u003cstrong\u003e12,500 BTU\/h\u003c\/strong\u003e, and a rated COP of \u003cstrong\u003e3.56\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy the 1-way design truly changes how the installation is planned\u003c\/h3\u003e\n\u003cp\u003eThe cassette measures approximately \u003cstrong\u003e50.31 in. wide × 13.19 in. deep × 8.98 in. high\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis long, narrow geometry immediately distinguishes it from a conventional square cassette.\u003c\/p\u003e\n\u003cp\u003eA four-way cassette is often positioned closer to the center of a room to distribute air in several directions. A 1-way cassette is better suited to configurations where air needs to be directed along a primary axis—for example, along a long room, from a peripheral area, or in a narrower space.\u003c\/p\u003e\n\u003cp\u003eIn a well-designed project, this feature can be an advantage. In a poorly planned project, it can become a limitation.\u003c\/p\u003e\n\u003cp\u003eWe therefore want the air directed \u003cstrong\u003etoward the area being conditioned\u003c\/strong\u003e, rather than toward a wall located a few feet from the cassette.\u003c\/p\u003e\n\u003ch3\u003eAn example of a configuration where this cassette makes a great deal of sense\u003c\/h3\u003e\n\u003cp\u003eLet’s consider a large rectangular room in a condo in \u003cstrong\u003eMontreal\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOne side of the room is occupied by a bay window. The other side contains cabinets and decorative elements. Installing a visible wall-mounted head becomes difficult without compromising the layout.\u003c\/p\u003e\n\u003cp\u003eA 1-way cassette installed in the ceiling can free up these surfaces while directing air along the length of the room.\u003c\/p\u003e\n\u003cp\u003eThis is precisely the type of situation in which we prefer to consider the building’s geometry before its simple rated capacity.\u003c\/p\u003e\n\u003ch3\u003e12,000 BTU does not automatically mean that it is suitable for every room requiring 12,000 BTU\u003c\/h3\u003e\n\u003cp\u003eSenville’s documentation recommends this product family for spaces of approximately \u003cstrong\u003e400 to 600 sq. ft.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis figure should be used as a reference, not as a sizing formula.\u003c\/p\u003e\n\u003cp\u003eA 500 sq. ft. living room on the top floor with large southwest-facing windows may have a much higher heating and cooling load than an office of the same size on the ground floor.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we take the following factors into account:\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\u003ethe ceiling height;\u003c\/li\u003e\n\u003cli\u003ethe floor;\u003c\/li\u003e\n\u003cli\u003ethe room layout;\u003c\/li\u003e\n\u003cli\u003ethe number of occupants;\u003c\/li\u003e\n\u003cli\u003eequipment that produces heat.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSEER2 of 23: solid seasonal efficiency\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSEER2 of 23\u003c\/strong\u003e is one of the key technical features of this 1-way cassette.\u003c\/p\u003e\n\u003cp\u003eThe series’ general documentation also highlights its high efficiency and ENERGY STAR certification. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the homeowner, this mainly means that the system belongs to a category in which seasonal cooling consumption is optimized by inverter technology.\u003c\/p\u003e\n\u003cp\u003eHowever, SEER2 figures alone should not be compared between completely different system designs. A ceiling cassette is not chosen solely for its energy efficiency. Its integration into the room, placement, and air distribution are also decisive.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -30 °C: actual capacities matter more than the minimum limit\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet lists the following capacities:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eapproximately \u003cstrong\u003e9,600 BTU\/h at -8 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eapproximately \u003cstrong\u003e11,500 BTU\/h at -15 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eapproximately \u003cstrong\u003e5,100 BTU\/h at -30 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe stated COP is approximately:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e2.65 at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1.09 at -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe brochure confirms that the series is 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 is an essential nuance.\u003c\/p\u003e\n\u003cp\u003eA heat pump can continue operating at -30 °C without retaining its full rated capacity.\u003c\/p\u003e\n\u003cp\u003eAt this extreme temperature, the building’s demand increases while the heat pump’s available capacity decreases. For a home in \u003cstrong\u003eLaval, Longueuil, or on the North Shore\u003c\/strong\u003e, a supplementary heating source may therefore still be necessary on the coldest days.\u003c\/p\u003e\n\u003ch3\u003eA relevant Cold Climate certification for Quebec\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet identifies this combination as \u003cstrong\u003eCold Climate: yes\u003c\/strong\u003e, and Senville also presents the series as a heat pump intended for low-temperature heating. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis distinguishes the model from an air conditioner with only an occasional heating function.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner looking to reduce the use of electric baseboard heaters during much of the winter, this distinction may be particularly valuable.\u003c\/p\u003e\n\u003ch3\u003eLow-ambient-temperature air conditioning may also be of interest to certain businesses\u003c\/h3\u003e\n\u003cp\u003eThe brochure mentions a \u003cstrong\u003elow-ambient-temperature air conditioning function down to -30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a residence, this feature is rarely a priority.\u003c\/p\u003e\n\u003cp\u003eIn some commercial or technical spaces, however, a room may need cooling even when the outdoor temperature is low because of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eequipment;\u003c\/li\u003e\n\u003cli\u003eservers;\u003c\/li\u003e\n\u003cli\u003elighting;\u003c\/li\u003e\n\u003cli\u003ehigh occupancy;\u003c\/li\u003e\n\u003cli\u003einternal heat gains.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis feature can therefore offer real value depending on the application.\u003c\/p\u003e\n\u003ch3\u003eInverter technology: the system does not operate at full capacity constantly\u003c\/h3\u003e\n\u003cp\u003eThe brochure clearly identifies \u003cstrong\u003einverter technology\u003c\/strong\u003e among the main features. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eInstead of constantly switching between off and full power, the compressor can modulate its operation according to demand.\u003c\/p\u003e\n\u003cp\u003eIn a medium-sized space, this may promote:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emore stable temperature;\u003c\/li\u003e\n\u003cli\u003equieter operation;\u003c\/li\u003e\n\u003cli\u003elonger cycles;\u003c\/li\u003e\n\u003cli\u003eenergy consumption better matched to the actual load.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFollow Me function: the temperature can be measured closer to the occupant\u003c\/h3\u003e\n\u003cp\u003eThe documentation mentions a remote control with the \u003cstrong\u003eFollow Me\u003c\/strong\u003e function. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis feature may be useful with a ceiling cassette.\u003c\/p\u003e\n\u003cp\u003eThe temperature near the ceiling may differ from the temperature felt at the level where occupants are located. By using a sensor built into the remote control as intended by the manufacturer, the system can take a measurement that more accurately represents the occupied zone.\u003c\/p\u003e\n\u003ch3\u003eSelf-diagnostics, leak detection, and self-cleaning mode\u003c\/h3\u003e\n\u003cp\u003eSenville mentions several functions intended to simplify operation and maintenance:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003erefrigerant leak detection;\u003c\/li\u003e\n\u003cli\u003ediagnostic display;\u003c\/li\u003e\n\u003cli\u003eself-cleaning mode;\u003c\/li\u003e\n\u003cli\u003eself-diagnostic system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese functions can help identify certain problems more quickly.\u003c\/p\u003e\n\u003cp\u003eHowever, they do not replace \u003cstrong\u003eprofessional HVAC maintenance\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA system may lose performance because of a filter, drain, sensor, refrigerant charge issue, or electronic component. A diagnostic code is an indication, not always the complete diagnosis.\u003c\/p\u003e\n\u003ch2\u003eA one-way cassette requires more careful planning than a wall-mounted unit\u003c\/h2\u003e\n\u003ch3\u003eThe ceiling must provide sufficient technical space\u003c\/h3\u003e\n\u003cp\u003eThe unit is approximately \u003cstrong\u003e8.98 inches high\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis does not mean that a nine-inch ceiling cavity is automatically sufficient.\u003c\/p\u003e\n\u003cp\u003eWe must also plan for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe refrigerant connections;\u003c\/li\u003e\n\u003cli\u003ethe drain;\u003c\/li\u003e\n\u003cli\u003ethe cables;\u003c\/li\u003e\n\u003cli\u003eclearances;\u003c\/li\u003e\n\u003cli\u003ethe support;\u003c\/li\u003e\n\u003cli\u003efuture access.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a \u003cstrong\u003eMontreal\u003c\/strong\u003e renovation, the visually ideal location may have a joist, beam, or duct above the ceiling.\u003c\/p\u003e\n\u003cp\u003eThe best installation is therefore determined after inspecting what is actually located in the cavity.\u003c\/p\u003e\n\u003ch3\u003eThe 50-inch length must be planned before opening the ceiling\u003c\/h3\u003e\n\u003cp\u003eAn indoor unit \u003cstrong\u003e50.31 inches long\u003c\/strong\u003e requires a sufficiently clear, continuous area.\u003c\/p\u003e\n\u003cp\u003eIt is much longer than a compact square cassette.\u003c\/p\u003e\n\u003cp\u003eBefore cutting anything, we check:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ejoist locations;\u003c\/li\u003e\n\u003cli\u003eplumbing;\u003c\/li\u003e\n\u003cli\u003ecables;\u003c\/li\u003e\n\u003cli\u003eexisting ducts;\u003c\/li\u003e\n\u003cli\u003elight fixtures;\u003c\/li\u003e\n\u003cli\u003esprinklers;\u003c\/li\u003e\n\u003cli\u003eceiling structure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMoving it a few inches at the beginning of the project can prevent many modifications after the opening is made.\u003c\/p\u003e\n\u003ch3\u003eDrainage is one of the most important elements\u003c\/h3\u003e\n\u003cp\u003eA cassette is installed above the occupied space.\u003c\/p\u003e\n\u003cp\u003eAn improperly controlled condensate leak can therefore damage:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eceiling;\u003c\/li\u003e\n\u003cli\u003epaint;\u003c\/li\u003e\n\u003cli\u003efurniture;\u003c\/li\u003e\n\u003cli\u003efinishes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThat is why the drain route must be designed before the finishing is closed up.\u003c\/p\u003e\n\u003cp\u003eWhenever possible, we favor a simple, accessible route and avoid paths that unnecessarily complicate maintenance.\u003c\/p\u003e\n\u003ch3\u003eR-454B precharged for 25 feet\u003c\/h3\u003e\n\u003cp\u003eSenville documentation states that the system is precharged with \u003cstrong\u003eR-454B for a length of up to 25 feet\u003c\/strong\u003e. An installation using 50 feet of piping requires the installer to add refrigerant. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe piping specified for the 12,000 BTU model is:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e1\/4 in. liquid\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e3\/8 in. gas\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSince R-454B is an A2L refrigerant, commissioning must be carried out using appropriate methods and equipment.\u003c\/p\u003e\n\u003ch3\u003eWhy evacuation remains essential\u003c\/h3\u003e\n\u003cp\u003eThe factory charge is contained in the outdoor unit.\u003c\/p\u003e\n\u003cp\u003eThe piping installed on site initially contains air and moisture.\u003c\/p\u003e\n\u003cp\u003eA proper installation therefore requires, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003econnection inspection;\u003c\/li\u003e\n\u003cli\u003eleak test;\u003c\/li\u003e\n\u003cli\u003eevacuation;\u003c\/li\u003e\n\u003cli\u003ecommissioning;\u003c\/li\u003e\n\u003cli\u003eoperation check.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eImproper circuit preparation can reduce performance and adversely affect the system's service life.\u003c\/p\u003e\n\u003ch3\u003e208\/230 V power supply\u003c\/h3\u003e\n\u003cp\u003eThe technical table indicates a \u003cstrong\u003e208\/230 V, 60 Hz, single-phase\u003c\/strong\u003e power supply. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product sheet specifies:\u003c\/p\u003e\n\u003cul\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\u003c\/ul\u003e\n\u003cp\u003eThese values remain relatively modest for a 12,000 BTU system, but the circuit must obviously be prepared in accordance with the nameplate data and the site's electrical requirements.\u003c\/p\u003e\n\u003ch3\u003eCompact outdoor unit to facilitate urban installations\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit measures approximately \u003cstrong\u003e31.69 × 12.99 × 21.81 in\u003c\/strong\u003e according to the 12,000 BTU model table. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis size can facilitate certain installations in side yards or on properties where available space is limited.\u003c\/p\u003e\n\u003cp\u003eWe must nevertheless comply with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eclearances;\u003c\/li\u003e\n\u003cli\u003esnow;\u003c\/li\u003e\n\u003cli\u003ewater drainage;\u003c\/li\u003e\n\u003cli\u003ethe neighbors;\u003c\/li\u003e\n\u003cli\u003emunicipal regulations;\u003c\/li\u003e\n\u003cli\u003efuture access.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOptional WiFi\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates that \u003cstrong\u003eWiFi is available as an option\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn a residence, this can simplify scheduling.\u003c\/p\u003e\n\u003cp\u003eIn an office or small business, remote control can be even more useful by allowing the temperature to be managed according to occupancy hours.\u003c\/p\u003e\n\u003ch3\u003eWhy choose a 1-way cassette instead of a square cassette\u003c\/h3\u003e\n\u003cp\u003eThe two products are not intended for exactly the same configurations.\u003c\/p\u003e\n\u003cp\u003eA conventional square cassette may be preferable when it is installed in the center of a room and you want to distribute air around it.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e1-way cassette\u003c\/strong\u003e makes more sense when you want to direct airflow in a primary direction and take advantage of its linear format.\u003c\/p\u003e\n\u003cp\u003eA good example would be a long room, a room located along a glass façade, or a space where integrating a central square cassette would be difficult.\u003c\/p\u003e\n\u003ch3\u003ePoor orientation can cancel out the advantage of the 1-way format\u003c\/h3\u003e\n\u003cp\u003eThe name “1-way” should be taken seriously.\u003c\/p\u003e\n\u003cp\u003eIf the unit is positioned so that it sends its air directly toward a nearby wall, part of its potential range will be lost.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product sheet indicates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003evertical louver: \u003cstrong\u003eautomatic\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ehorizontal louver: \u003cstrong\u003emanual\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis allows for certain adjustments, but the initial positioning remains crucial.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore analyze the airflow direction before deciding precisely where to open the ceiling.\u003c\/p\u003e\n\u003ch3\u003eDisplayed provincial rebate: $1,152\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates a \u003cstrong\u003e$1,152 provincial rebate\u003c\/strong\u003e for this combination.\u003c\/p\u003e\n\u003cp\u003eIt also displays:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eCold Climate: yes\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR ID: 3893584\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 216623594\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSenville documentation confirms the series' ENERGY STAR certification. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, all financial incentives must be validated at the time of quoting according to the rules of the program in effect and the exact installed configuration.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a difference between the AirGreen product page and Senville documentation\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product page lists a manufacturer's warranty:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10-year compressor – 10-year parts – 0-year labour\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure instead states:\u003c\/p\u003e\n\u003cp\u003e\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 is therefore important to confirm the exact coverage applicable to the product sold by AirGreen, including any registration requirements.\u003c\/p\u003e\n\u003ch3\u003eWhich projects is this SENVILLE cassette particularly well suited for?\u003c\/h3\u003e\n\u003cp\u003eWe consider it particularly suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea living room or living area where the walls need to remain clear;\u003c\/li\u003e\n\u003cli\u003ean office;\u003c\/li\u003e\n\u003cli\u003ea commercial space;\u003c\/li\u003e\n\u003cli\u003ea rectangular room;\u003c\/li\u003e\n\u003cli\u003ea renovation with a suspended ceiling;\u003c\/li\u003e\n\u003cli\u003ea room with large windows;\u003c\/li\u003e\n\u003cli\u003ean installation where directional airflow is advantageous.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is less suitable when the ceiling provides no access or when the structure requires too many modifications.\u003c\/p\u003e\n\u003ch3\u003eWhat we check at AirGreen before confirming the installation\u003c\/h3\u003e\n\u003cp\u003eFor a \u003cstrong\u003eceiling cassette installation in Montreal, Laval, Longueuil, on the South Shore, or on the North Shore\u003c\/strong\u003e, we assess in particular:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe room's heating and cooling load;\u003c\/li\u003e\n\u003cli\u003eavailable space in the ceiling;\u003c\/li\u003e\n\u003cli\u003ejoist positioning;\u003c\/li\u003e\n\u003cli\u003eairflow direction;\u003c\/li\u003e\n\u003cli\u003edrainage;\u003c\/li\u003e\n\u003cli\u003epiping length;\u003c\/li\u003e\n\u003cli\u003eelectrical supply;\u003c\/li\u003e\n\u003cli\u003eoutdoor unit location;\u003c\/li\u003e\n\u003cli\u003efuture access;\u003c\/li\u003e\n\u003cli\u003eapplicable financial incentives.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis preparation is particularly important for a cassette because several components become invisible once the ceiling is closed.\u003c\/p\u003e\n\u003ch3\u003eOur assessment of the SENVILLE SENA 12,000 BTU 1-way cassette\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENA-12HF-1WC \/ SENA-12HF-1WCG\u003c\/strong\u003e offers an interesting combination for a discreet, directional installation:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e12,000 BTU in cooling\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e12,500 BTU nominal heating capacity according to the brochure\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2 of 23\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2 of 13\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-4 of 10\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eheating down to \u003cstrong\u003e-30 °C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eENERGY STAR\u003c\/li\u003e\n\u003cli\u003eCold Climate\u003c\/li\u003e\n\u003cli\u003eR-454B\u003c\/li\u003e\n\u003cli\u003eself-cleaning function\u003c\/li\u003e\n\u003cli\u003eleak detection\u003c\/li\u003e\n\u003cli\u003eself-diagnostics\u003c\/li\u003e\n\u003cli\u003eFollow Me function\u003c\/li\u003e\n\u003cli\u003elow-temperature cooling\u003c\/li\u003e\n\u003cli\u003ean indoor unit format of only \u003cstrong\u003e8.98 in. in height\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe value of this cassette therefore does not rest solely on its performance figures. It lies primarily in its ability to fit into a ceiling and condition the space without occupying a wall.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor a quote on a SENVILLE SENA 12,000 BTU 1-way ceiling cassette, contact AirGreen. We can assess the ceiling structure, required capacity, drainage, airflow direction, and applicable financial incentives for your project in Montreal, Laval, Longueuil, on the North Shore, or on the South Shore.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56120175755556,"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_1_VOIE_SENVILLE_AURA_R454B_12000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789060417"},{"product_id":"cassette-de-plafond-1-voie-senville-sena-r454b-18000-btu","title":"1-Way Ceiling Cassette SENVILLE SENA R454B | 18000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA long, discreet ceiling heat pump designed to send air in a precise direction rather than in four directions\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA R454B 1-Way Ceiling Cassette | 18,000 BTU\u003c\/strong\u003e occupies a very specific category among ductless heating and cooling solutions. It does not seek to systematically replace a wall-mounted heat pump or a square four-way cassette. Its strength lies elsewhere: its indoor unit is recessed into the ceiling and directs air primarily in \u003cstrong\u003ea specific direction\u003c\/strong\u003e, which can be much more suitable in a long room, corridor, office, business, meeting room, or area where airflow must follow the geometry of the space.\u003c\/p\u003e\n\u003cp\u003eFor our HVAC projects in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, and the North Shore\u003c\/strong\u003e, this distinction matters enormously. In some buildings, a wall-mounted heat pump has an excellent location. In others, the walls are occupied by windows, cabinets, doors, artwork, shelving, or architectural elements that make a wall-mounted unit impractical. The one-way cassette then makes it possible to move the airflow challenge to the ceiling.\u003c\/p\u003e\n\u003cp\u003eThe configuration presented here pairs the \u003cstrong\u003eSENA-18HF-OG\u003c\/strong\u003e outdoor unit with the \u003cstrong\u003eSENA-18HF-1WCG\u003c\/strong\u003e indoor unit, under reference \u003cstrong\u003eAHRI 216623595\u003c\/strong\u003e. This combination is \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certified, rated for \u003cstrong\u003ecold climates\u003c\/strong\u003e, operates with \u003cstrong\u003eR454B\u003c\/strong\u003e, and has a \u003cstrong\u003eSEER2 of 20.6\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 12.5\u003c\/strong\u003e, and an \u003cstrong\u003eHSPF2 Region IV of 12.2\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville also specifically presents the SENA-18HF-1WCG as a ceiling cassette with \u003cstrong\u003eone-way airflow\u003c\/strong\u003e, designed for corridors, narrow rooms, and commercial installations where available space is limited. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e18,000 BTU in the name, but 16,700 BTU of certified cooling capacity\u003c\/h3\u003e\n\u003cp\u003eThe first detail we explain to our customers is the difference between the \u003cstrong\u003e18,000 BTU commercial class\u003c\/strong\u003e and the certified capacity of the exact match.\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure's technical table indicates the following for the SENA-18HF-1WC:\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\u003ecooling capacity of \u003cstrong\u003e16,700 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSEER2 of 20.6\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEER2 of 12.5\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003enominal heating capacity of \u003cstrong\u003e20,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSPF2-4 of 12.2\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003enominal COP of \u003cstrong\u003e3,01\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eliquid line of \u003cstrong\u003e1\/4 po\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003egas line of \u003cstrong\u003e1\/2 po\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe AHRI 216623595 certification also confirms \u003cstrong\u003e16,700 BTU\/h of cooling\u003c\/strong\u003e, \u003cstrong\u003e20,000 BTU\/h of heating\u003c\/strong\u003e, 20.6 SEER2, and 12.2 HSPF2. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is therefore not a contradiction: “18,000 BTU” identifies the product category, while the certified values describe the actual performance of this specific combination.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we use certified values when properly sizing a system or comparing two units.\u003c\/p\u003e\n\u003ch3\u003eWhy a 1-way cassette is not simply a narrower square cassette\u003c\/h3\u003e\n\u003cp\u003eThe traditional four-way ceiling cassette distributes air in several directions around its perimeter. This works very well when it is positioned relatively centrally in an open area.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE 1-way cassette\u003c\/strong\u003e follows a different approach.\u003c\/p\u003e\n\u003cp\u003eIt is long and narrow and directs its airflow primarily toward a specific area. Senville specifically highlights this directional airflow as one of its main advantages. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis can be particularly useful in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ean elongated living room;\u003c\/li\u003e\n\u003cli\u003ea residential hallway;\u003c\/li\u003e\n\u003cli\u003ea rectangular office;\u003c\/li\u003e\n\u003cli\u003ea narrow commercial space;\u003c\/li\u003e\n\u003cli\u003ea room with a large glass façade;\u003c\/li\u003e\n\u003cli\u003ea room where we want to project the air parallel to the length of the space;\u003c\/li\u003e\n\u003cli\u003ea renovation where a wall cannot accommodate a wall-mounted unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe choice between a \u003cstrong\u003e1-way cassette, 4-way cassette, and wall-mounted heat pump\u003c\/strong\u003e should therefore not be based solely on appearance. You need to consider the room’s actual geometry and the direction in which the air needs to circulate.\u003c\/p\u003e\n\u003ch3\u003eAn indoor unit more than 50 inches wide but less than 9 inches high\u003c\/h3\u003e\n\u003cp\u003eThe geometry of this cassette is one of its most interesting features.\u003c\/p\u003e\n\u003cp\u003eSenville indicates the following for the indoor unit:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e50.31 in wide × 13.19 in deep × 8.98 in high.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit, meanwhile, measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e35.04 in × 13.46 in × 26.50 in.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe indoor unit’s format is therefore very different from that of a square cassette.\u003c\/p\u003e\n\u003cp\u003eWith a nominal height of less than nine inches, it may suit certain ceilings where a deeper unit would be difficult to integrate. However, its width of more than four feet means that the orientation of the joists, beams, and other structural elements must be checked carefully.\u003c\/p\u003e\n\u003cp\u003eThis is exactly the kind of product that looks simple in a photo but requires a proper ceiling inspection before the installation is confirmed.\u003c\/p\u003e\n\u003ch3\u003eA particularly interesting cassette for long rooms\u003c\/h3\u003e\n\u003cp\u003eLet’s take a common example in a condo in \u003cstrong\u003eMontreal\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe living room and dining room are arranged lengthwise. One side wall is almost entirely occupied by windows, while the other has cabinets and a hallway door. A wall-mounted heat pump could be installed at one end, but its location would be visually dominant, and the airflow would not necessarily be directed ideally.\u003c\/p\u003e\n\u003cp\u003eA ceiling-mounted 1-way cassette can project air along the room’s longitudinal axis.\u003c\/p\u003e\n\u003cp\u003eIn an office in \u003cstrong\u003eLongueuil\u003c\/strong\u003e, we may encounter the opposite situation: a unit installed above a circulation area can send the airflow along the workstations without taking up wall space.\u003c\/p\u003e\n\u003cp\u003eIn our own AirGreen documentation on 1-way cassettes, we also noted the value of this type of air distribution in a professional space in Longueuil: directional positioning made it possible to better control drafts toward the occupied area. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eAutomatic vertical louver and manual horizontal orientation\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet for this model indicates \u003cstrong\u003eautomatic vertical louver control\u003c\/strong\u003e and manual horizontal adjustment.\u003c\/p\u003e\n\u003cp\u003eThis combination aligns well with the logic of a 1-way cassette: we carefully choose the general direction of the installation, then the automatic louver allows the airflow sweep to be adjusted during operation.\u003c\/p\u003e\n\u003cp\u003eThis detail matters from the design stage.\u003c\/p\u003e\n\u003cp\u003eWith a wall-mounted unit, a few degrees of orientation can sometimes be compensated for by the motorized louvers. With a directional cassette recessed into the ceiling, we want its axis to align with the area to be conditioned from the outset.\u003c\/p\u003e\n\u003ch3\u003e20.6 SEER2: compelling efficiency for a recessed cassette\u003c\/h3\u003e\n\u003cp\u003eThe certification for the \u003cstrong\u003eSENA-18HF-OG + SENA-18HF-1WCG\u003c\/strong\u003e combination indicates a \u003cstrong\u003eSEER2 of 20.6\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 12.5\u003c\/strong\u003e, and an \u003cstrong\u003eHSPF2 of 12.2\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis efficiency must be interpreted in the context of a cassette unit.\u003c\/p\u003e\n\u003cp\u003eWe do not compare only the SEER2 rating with that of a wall-mounted heat pump. A cassette is sometimes chosen precisely because a wall-mounted unit cannot distribute air properly throughout the building.\u003c\/p\u003e\n\u003cp\u003eA wall-mounted unit with a higher stated theoretical efficiency is not necessarily the best choice if its location forces the air to hit a nearby wall or remain concentrated in just one part of the room.\u003c\/p\u003e\n\u003cp\u003eThe actual efficiency of an \u003cstrong\u003eHVAC system\u003c\/strong\u003e therefore depends both on the equipment’s performance and on its ability to distribute heating or cooling where the building needs it.\u003c\/p\u003e\n\u003ch3\u003eHeating at −8 °C: 14,500 certified BTU\/h\u003c\/h3\u003e\n\u003cp\u003eThe ENERGY STAR certification associated with this cassette indicates a heating capacity of approximately \u003cstrong\u003e14,500 BTU\/h at 17 °F\u003c\/strong\u003e, or approximately \u003cstrong\u003e-8 °C\u003c\/strong\u003e. It also indicates \u003cstrong\u003e17,500 BTU\/h at 5 °F\u003c\/strong\u003e, or approximately \u003cstrong\u003e-15 °C\u003c\/strong\u003e, with a COP of approximately \u003cstrong\u003e1.89\u003c\/strong\u003e at this temperature. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese values are particularly relevant for \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA unit may be advertised as operating down to -30 °C, but the real question for the homeowner is how much heat it can still produce as the temperature drops.\u003c\/p\u003e\n\u003cp\u003eFor this configuration:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003erated heating: approximately \u003cstrong\u003e20,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eheating at approximately -8 °C: \u003cstrong\u003e14,500 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eheating at approximately -15 °C: \u003cstrong\u003e17,500 BTU\/h\u003c\/strong\u003e according to the available certification;\u003c\/li\u003e\n\u003cli\u003emaximum capacity indicated by the AirGreen product sheet at -30 °C: approximately \u003cstrong\u003e9,500 BTU\/h\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePerformance is therefore not a simple straight line where capacity decreases exactly the same way with each degree. The certified points correspond to specific test conditions and different operating speeds of the Inverter compressor.\u003c\/p\u003e\n\u003ch3\u003eCOP at -30 °C: approximately 1.47 according to the AirGreen product sheet\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates a \u003cstrong\u003emaximum COP of approximately 1.47 at -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis means that the unit can still transfer more heat than a resistance-electric system directly produces with the same amount of electrical energy consumed by the heat pump, under the conditions corresponding to this figure.\u003c\/p\u003e\n\u003cp\u003ePerformance is obviously much lower than at mild temperatures.\u003c\/p\u003e\n\u003cp\u003eFor this reason, we never present a “-30 °C” heat pump as a guarantee that it can heat any home on its own at -30 °C.\u003c\/p\u003e\n\u003cp\u003eIf the building's heat losses exceed the \u003cstrong\u003e9,500 BTU\/h available at this temperature\u003c\/strong\u003e, supplemental heating is still required.\u003c\/p\u003e\n\u003ch3\u003eR454B: a new generation of refrigerant that changes installation methods\u003c\/h3\u003e\n\u003cp\u003eThis cassette operates with \u003cstrong\u003eR454B\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure specifies that the system is precharged for up to \u003cstrong\u003e25 ft of piping\u003c\/strong\u003e and that an installation with a 50 ft kit requires the installer to add refrigerant. It also states that professional installation is required to preserve the warranty and performance. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eR454B belongs to the A2L refrigerant category.\u003c\/p\u003e\n\u003cp\u003eWe must therefore work with appropriate procedures and tools, particularly for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003erefrigerant connections;\u003c\/li\u003e\n\u003cli\u003eleak tests;\u003c\/li\u003e\n\u003cli\u003evacuuming;\u003c\/li\u003e\n\u003cli\u003erefrigerant handling;\u003c\/li\u003e\n\u003cli\u003ecommissioning;\u003c\/li\u003e\n\u003cli\u003everification of the leak detection system when applicable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSenville also mentions self-diagnostic and \u003cstrong\u003eleak detection\u003c\/strong\u003e functions for this generation, as well as a self-cleaning mode. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eAn AirGreen 1-way cassette installation starts with the ceiling, drainage, and airflow direction\u003c\/h2\u003e\n\u003ch3\u003eThe real challenge: finding 50 inches of length in the right place\u003c\/h3\u003e\n\u003cp\u003eAn indoor unit \u003cstrong\u003e50.31 in. wide\u003c\/strong\u003e requires serious structural planning.\u003c\/p\u003e\n\u003cp\u003eWe need to know what is above the ceiling before choosing the location:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ebeams;\u003c\/li\u003e\n\u003cli\u003ejoists;\u003c\/li\u003e\n\u003cli\u003eductwork;\u003c\/li\u003e\n\u003cli\u003eplumbing;\u003c\/li\u003e\n\u003cli\u003eelectrical wiring;\u003c\/li\u003e\n\u003cli\u003erecessed lighting;\u003c\/li\u003e\n\u003cli\u003esprinklers;\u003c\/li\u003e\n\u003cli\u003eexisting lines;\u003c\/li\u003e\n\u003cli\u003emaintenance access.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA ceiling cassette cannot be moved as easily as a wall-mounted unit once we discover a beam in the wrong place.\u003c\/p\u003e\n\u003cp\u003eDuring a renovation, we prefer to inspect the ceiling before the finishes are completed. This allows us to coordinate the opening, support, refrigerant lines, drainage, and electrical work at the same time.\u003c\/p\u003e\n\u003ch3\u003eA height of only 8.98 in. does not eliminate the need for technical clearance\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit’s low height is an advantage, but it does not mean that nine inches of clearance will automatically be sufficient.\u003c\/p\u003e\n\u003cp\u003eWe must also take into account:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eunit support;\u003c\/li\u003e\n\u003cli\u003econnections;\u003c\/li\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003edrain;\u003c\/li\u003e\n\u003cli\u003erequired clearances;\u003c\/li\u003e\n\u003cli\u003eaccess to components;\u003c\/li\u003e\n\u003cli\u003eceiling finish.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOn a job site, a few inches can determine whether the project remains simple or whether a soffit must be modified.\u003c\/p\u003e\n\u003cp\u003eThat is why we measure the available space \u003cstrong\u003eabove the ceiling\u003c\/strong\u003e, not just the visible height in the room.\u003c\/p\u003e\n\u003ch3\u003eA commercial project in Longueuil: why airflow direction mattered more than raw capacity\u003c\/h3\u003e\n\u003cp\u003eIn a commercial space documented by AirGreen in \u003cstrong\u003eLongueuil\u003c\/strong\u003e, the main problem associated with a 1-way cassette was not insufficient capacity. The challenge was to achieve airflow suited to the work area while limiting the sensation of a direct draft on occupants.\u003c\/p\u003e\n\u003cp\u003eThe principle of a one-way cassette is precisely to direct airflow along a chosen axis rather than blow uniformly in all directions. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis type of situation comes up regularly in our commercial projects: good distribution from an 18,000 BTU unit can be more comfortable than a higher capacity that is poorly directed.\u003c\/p\u003e\n\u003ch3\u003eIs a 1-way cassette suitable for 500 to 700 sq. ft.?\u003c\/h3\u003e\n\u003cp\u003eSenville’s commercial brochure presents the model as being suitable for approximately \u003cstrong\u003e500 to 700 sq. ft.\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe use this range only as a general guideline.\u003c\/p\u003e\n\u003cp\u003eA 650 sq. ft. room in a recent building in \u003cstrong\u003eBrossard\u003c\/strong\u003e and a 650 sq. ft. retail space with a full south-facing glass frontage do not have the same heat load.\u003c\/p\u003e\n\u003cp\u003eWe specifically consider:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003earea;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003eorientation;\u003c\/li\u003e\n\u003cli\u003efenestration;\u003c\/li\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003enumber of occupants;\u003c\/li\u003e\n\u003cli\u003elighting;\u003c\/li\u003e\n\u003cli\u003eheat-generating appliances;\u003c\/li\u003e\n\u003cli\u003eair infiltration;\u003c\/li\u003e\n\u003cli\u003ethe type of use of the space.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 1-way format can be excellent for a 600 sq. ft. long room, but less suitable for a square space where multidirectional air distribution would be preferable.\u003c\/p\u003e\n\u003ch3\u003eDrainage: a critical consideration when a unit is concealed in a ceiling\u003c\/h3\u003e\n\u003cp\u003eEvery system that provides cooling produces condensation.\u003c\/p\u003e\n\u003cp\u003eWhen a unit is installed on a wall, a drain problem can sometimes be detected quickly. In a finished ceiling, the consequences of poorly planned drainage can be much more significant.\u003c\/p\u003e\n\u003cp\u003eWe therefore check:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe possibility of draining the water by gravity;\u003c\/li\u003e\n\u003cli\u003edrain route;\u003c\/li\u003e\n\u003cli\u003eslope;\u003c\/li\u003e\n\u003cli\u003eaccess for maintenance;\u003c\/li\u003e\n\u003cli\u003eprotection of finishes;\u003c\/li\u003e\n\u003cli\u003ecompatibility with Senville’s installation requirements.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe integrated dehumidification function mentioned by the manufacturer is useful for comfort, but all the water removed from the air must then be properly drained. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e1\/4 in – 1\/2 in piping\u003c\/h3\u003e\n\u003cp\u003eSenville specifies the following for the 18,000 BTU version:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eliquid line: \u003cstrong\u003e1\/4 po\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003egas line: \u003cstrong\u003e1\/2 po\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis information is particularly important when replacing an existing system.\u003c\/p\u003e\n\u003cp\u003ePiping already concealed in a ceiling is not automatically reusable. We must check its diameter, condition, insulation, length, and compatibility with the new R454B system.\u003c\/p\u003e\n\u003cp\u003eReusing a line simply to avoid opening a ceiling can create a much more costly problem if it does not meet specifications.\u003c\/p\u003e\n\u003ch3\u003eOptional Wi-Fi: a difference to clarify from the outset\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates \u003cstrong\u003eoptional Wi-Fi\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe official page for the SENA-18HF-1WCG unit instead emphasizes the wireless remote and local control of the unit. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore recommend confirming the smart control accessory when placing the order if app-based management is part of the customer’s needs.\u003c\/p\u003e\n\u003cp\u003eFor an office or commercial space, this option can be particularly useful for setting schedules based on occupancy hours.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR and cold climates\u003c\/h3\u003e\n\u003cp\u003eThe pairing \u003cstrong\u003eSENA-18HF-OG + SENA-18HF-1WCG, AHRI 216623595\u003c\/strong\u003e is certified as \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e and \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\u003eThe ENERGY STAR registry also indicates a \u003cstrong\u003econtinuously variable\u003c\/strong\u003e compressor, R454B, and a heating capacity of 14,500 BTU\/h at around -8 °C. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis combination therefore corresponds to a heat pump designed for year-round use in Quebec rather than simply an air conditioner with an occasional heating function.\u003c\/p\u003e\n\u003ch3\u003eWhy the AirGreen product sheet indicates a $1,740 rebate\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates a \u003cstrong\u003e$1,740 provincial rebate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eA Hydro-Québec list precisely matching \u003cstrong\u003eAHRI 216623595\u003c\/strong\u003e, \u003cstrong\u003eSENA-18HF-OG\u003c\/strong\u003e, and \u003cstrong\u003eSENA-18HF-1WCG\u003c\/strong\u003e gives a heating capacity of \u003cstrong\u003e14,500 BTU\/h at -8 °C\u003c\/strong\u003e and an incentive of \u003cstrong\u003e$1,740\u003c\/strong\u003e under the corresponding option of the documented program. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe calculation is consistent with a rate of $120 per 1,000 BTU\/h:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e14.5 × $120 = $1,740\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNevertheless, we always verify eligibility and the amount at the time of the project. The \u003cstrong\u003eLogisVert\u003c\/strong\u003e rules, building categories, and payment scales may change, and the applicable amount depends on the date and actual circumstances of the installation.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a difference between the Senville brochure and the AirGreen product sheet\u003c\/h3\u003e\n\u003cp\u003eThe Senville documentation provided mentions a \u003cstrong\u003e10-year 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 sheet, for its part, presents \u003cstrong\u003e10-10-0\u003c\/strong\u003e, with the possibility of additional coverage.\u003c\/p\u003e\n\u003cp\u003eThese two pieces of information must therefore be distinguished.\u003c\/p\u003e\n\u003cp\u003eFor every AirGreen installation, the applicable coverage must be confirmed in the \u003cstrong\u003efinal quote and warranty documents\u003c\/strong\u003e. Coverage may depend on the sales program, product registration, and additional protection offered with the installation.\u003c\/p\u003e\n\u003ch3\u003eMistakes we seek to avoid with a one-way cassette\u003c\/h3\u003e\n\u003ch4\u003eChoosing a cassette because it is more discreet without checking the direction of the airflow\u003c\/h4\u003e\n\u003cp\u003eThe shape of the room must justify one-way airflow.\u003c\/p\u003e\n\u003ch4\u003eWaiting until installation day to inspect the joists\u003c\/h4\u003e\n\u003cp\u003eWith an indoor unit more than 50 inches wide, this mistake may require relocating the entire appliance.\u003c\/p\u003e\n\u003ch4\u003eUnderestimating drainage\u003c\/h4\u003e\n\u003cp\u003eA leak above a finished ceiling can damage paint, drywall, light fixtures, and furnishings.\u003c\/p\u003e\n\u003ch4\u003eRely only on the “18,000 BTU” rating\u003c\/h4\u003e\n\u003cp\u003eThe certified cooling capacity of this matched system is \u003cstrong\u003e16,700 BTU\/h\u003c\/strong\u003e. Sizing must be based on actual data.\u003c\/p\u003e\n\u003ch4\u003eInstalling the cassette in the easiest location rather than the best location\u003c\/h4\u003e\n\u003cp\u003eA shorter refrigerant line is not a saving if the airflow is poorly directed throughout the system’s service life.\u003c\/p\u003e\n\u003ch4\u003eFailing to plan for service access\u003c\/h4\u003e\n\u003cp\u003eThe filters and components must remain accessible. A nearly invisible cassette must not become impossible to service.\u003c\/p\u003e\n\u003ch3\u003eWhich projects do we particularly recommend this SENVILLE for?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA 18,000 BTU 1-way\u003c\/strong\u003e is particularly suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003elong or rectangular rooms;\u003c\/li\u003e\n\u003cli\u003ecorridors;\u003c\/li\u003e\n\u003cli\u003eoffices;\u003c\/li\u003e\n\u003cli\u003eretail stores;\u003c\/li\u003e\n\u003cli\u003emeeting rooms;\u003c\/li\u003e\n\u003cli\u003econdos with limited available wall space;\u003c\/li\u003e\n\u003cli\u003erenovations where ceiling integration is possible;\u003c\/li\u003e\n\u003cli\u003espaces where directional distribution is preferred over airflow on all four sides.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe would be more cautious in a large square room where a 4-way cassette could distribute air more evenly, or in a property where no technical space is available above the ceiling.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for a 1-way ceiling cassette?\u003c\/h3\u003e\n\u003cp\u003eInstalling this type of unit requires coordination between \u003cstrong\u003erefrigeration, structural work, drainage, electrical work, and interior finishing\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we work throughout \u003cstrong\u003eGreater Montreal, Montreal, Laval, Longueuil, the South Shore, and the North Shore\u003c\/strong\u003e. In existing buildings, we place as much importance on what is above the ceiling as on the performance figures listed on the AHRI sheet.\u003c\/p\u003e\n\u003cp\u003eWe check the required capacity, the optimal airflow direction, the opening dimensions, the \u003cstrong\u003e1\/4 – 1\/2\u003c\/strong\u003e piping route, drainage, the condenser location, and future access for \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis preparation is particularly important with a 1-way cassette: once properly integrated into the ceiling, the installation should look simple. To achieve this result, technical decisions must be made before the finishes are closed up.\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen quote for your SENVILLE SENA 1-Way 18,000 BTU\u003c\/h3\u003e\n\u003cp\u003eFor a \u003cstrong\u003eSENVILLE SENA R454B 1-Way Ceiling Cassette | 18,000 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 check the heating load, ceiling structure, ideal airflow direction, piping, drainage, electrical supply, Wi-Fi option, and eligibility for the \u003cstrong\u003eadvertised $1,740 rebate\u003c\/strong\u003e according to the rules applicable to your project.\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56120175821092,"sku":"SENA-18HF-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_1_VOIE_SENVILLE_AURA_R454B_18000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789060423"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/collections\/CASSETTE_DE_PLAFOND_SENVILLE_AURA_1_VOIE_ET_4_VOIES_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789067535","url":"https:\/\/airgreen.ca\/en\/collections\/cassette-de-plafond-senville-installation-a-montreal-laval-longueuil-rive-sud-rive-nord.oembed","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}