{"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","url":"https:\/\/airgreen.ca\/en\/products\/cassette-de-plafond-1-voie-senville-sena-r454b-9000-btu","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}