{"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","url":"https:\/\/airgreen.ca\/en\/products\/cassette-de-plafond-1-voie-senville-sena-r454b-18000-btu","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}