{"title":"Thermopompe murale YORK","description":null,"products":[{"product_id":"thermopompe-murale-york-serie-p-18-seer-9000-btu-115v","title":"YORK P Series Wall-Mounted Heat Pump 18 SEER | 9000 BTU 115V","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA compact 115 V wall-mounted solution for small areas, with technical specifications that must be read carefully\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eFor certain \u003cstrong\u003ewall-mounted heat pump projects in Montreal, Laval, Longueuil, the North Shore, or the South Shore\u003c\/strong\u003e, 9,000 BTU is exactly what is needed: a bedroom, office, small condo, a separate area of a house, or a commercial space of limited size. The \u003cstrong\u003eYORK P Series DHP09CSB11S \/ DHP09NWB11S\u003c\/strong\u003e adds an interesting feature to this category: it operates at \u003cstrong\u003e115 V\u003c\/strong\u003e, whereas many residential wall-mounted heat pumps are powered by 208\/230 V.\u003c\/p\u003e\n\u003cp\u003eHowever, this feature does not mean that it can simply be plugged into an existing wall outlet. This is precisely the kind of detail that can completely change the quality of an installation. At \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we assess the system as a whole: actual heating and cooling load, available electrical circuit, indoor unit location, condensate drainage, piping length, outdoor unit location, and expected performance when temperatures drop in winter.\u003c\/p\u003e\n\u003cp\u003eIt is also important to clarify a point concerning the name \u003cstrong\u003e“P Series 18 SEER”\u003c\/strong\u003e. The YORK catalog does indeed present this family as the \u003cstrong\u003eP Series 18 SEER\u003c\/strong\u003e, but the technical table for the specific 9,000 BTU 115 V model indicates a \u003cstrong\u003eSEER rating of 16\u003c\/strong\u003e, an EER of 9.55, and an HSPF of 9. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e The current YORKNow network catalog also identifies the \u003cstrong\u003eDHP09CSB11S \/ DHP09NWB11S\u003c\/strong\u003e pair as a 0.75-ton system rated at \u003cstrong\u003e16 SEER\u003c\/strong\u003e, associated with \u003cstrong\u003eAHRI number 8578529\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis distinction is important: \u003cstrong\u003e18 SEER describes the product line\u003c\/strong\u003e, while the certified performance of the 9,000 BTU 115 V model must be read in its own technical data sheet.\u003c\/p\u003e\n\u003ch3\u003eDHP09CSB11S outdoors, DHP09NWB11S indoors: the exact combination\u003c\/h3\u003e\n\u003cp\u003eThe YORK P Series referred to here is a \u003cstrong\u003esingle-zone wall-mounted heat pump with an inverter compressor\u003c\/strong\u003e consisting of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: DHP09CSB11S\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: DHP09NWB11S\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNominal cooling capacity: 9,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNominal heating capacity: 9,600 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 115 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-410A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 8578529\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER: 16 for this specific combination\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER: 9.55\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF: 9\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe compressor’s modulation is a much more relevant point than nominal capacity alone. In cooling mode, YORK indicates an approximate range of \u003cstrong\u003e2,764 to 10,918 BTU\/h\u003c\/strong\u003e. In heating mode, the published range is \u003cstrong\u003e2,081 to 12,283 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis means that the heat pump does not operate solely according to an on-off principle at 9,000 BTU. It can reduce or increase its output according to demand. In a room with moderate needs, this modulation helps achieve a more stable temperature and limits repeated starts and stops.\u003c\/p\u003e\n\u003ch3\u003eWhy a 9,000 BTU heat pump should not be selected based solely on floor area\u003c\/h3\u003e\n\u003cp\u003eWe regularly encounter overly simplified reasoning: a certain floor area would automatically correspond to 9,000, 12,000, or 18,000 BTU.\u003c\/p\u003e\n\u003cp\u003eIn the field, this shortcut can lead to a poor choice.\u003c\/p\u003e\n\u003cp\u003eA room on the top floor with large south-facing windows does not have the same load as a room of identical size on the ground floor and protected from the sun. Insulation, the number of windows, ceiling height, exposure, building airtightness, and adjacent spaces must also be taken into account.\u003c\/p\u003e\n\u003cp\u003eFor a \u003cstrong\u003e9,000 BTU wall-mounted heat pump\u003c\/strong\u003e, the right goal is therefore not to choose the largest unit that fits the budget. A properly sized unit can run longer at a lower output, maintain a more consistent temperature, and better control humidity in cooling mode.\u003c\/p\u003e\n\u003ch3\u003eAn interesting 115 V power supply, but with an MCA of 17 A and an MOCP of 25 A\u003c\/h3\u003e\n\u003cp\u003eThe 115 V is probably the feature that will attract the most attention on this YORK unit.\u003c\/p\u003e\n\u003cp\u003eThe documentation for model DHP09CSB11S states:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eElectrical data\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\u003eRated voltage\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e115 V \/ 1 phase \/ 60 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated cooling current\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e10.9 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated heating current\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e10.2 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMCA – minimum circuit ampacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e17 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOCP – maximum overcurrent protection\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e25 A\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\u003eThese values are indicated directly in the YORK documentation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe essential point is this: \u003cstrong\u003e115 V does not mean a portable appliance or a connection to an available 15 A outlet in the room\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWith an \u003cstrong\u003eMCA of 17 A\u003c\/strong\u003e, the electrical supply must be verified and installed according to the equipment requirements and applicable electrical standards. At AirGreen, we therefore do not select this model simply because a home has 120 V power. We check the circuit, protection, power-supply routing, and installation constraints before confirming the configuration.\u003c\/p\u003e\n\u003cp\u003eThis is particularly relevant during renovations in \u003cstrong\u003eMontreal\u003c\/strong\u003e, in certain plexes, older homes, or small commercial spaces where electrical availability can become a determining factor in the project.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -20 °C: what this value really means\u003c\/h3\u003e\n\u003cp\u003eYORK specifies a heating operating range of \u003cstrong\u003e-20 °C to 24 °C\u003c\/strong\u003e for the DHP09CSB11S and an outdoor cooling range extending approximately from \u003cstrong\u003e-18 °C to 46 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, a common misunderstanding should be avoided.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOperating at -20 °C does not mean producing 9,600 BTU\/h at -20 °C.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 9,600 BTU\/h represents the nominal capacity measured under the test conditions specified for this rating. As the outdoor temperature drops, a heat pump's capacity and efficiency may decrease. For a Greater Montréal homeowner, this difference is important because temperatures below -15 °C are part of a normal winter.\u003c\/p\u003e\n\u003cp\u003eWe therefore consider this YORK P Series to be a solution whose suitability depends on the building and intended use. For an additional room, a space where another heating source is available, or a project where electrical constraints favor 115 V, it may meet a specific need. When looking for a heat pump intended to provide a very large share of the heating during Québec's coldest periods, we generally compare its low-temperature performance with that of recent models designed specifically for the \u003cstrong\u003ecold climate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eAirflow, sound pressure, and room comfort\u003c\/h3\u003e\n\u003cp\u003eThe DHP09NWB11S indoor unit offers four published airflow values:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e318 \/ 288 \/ 241 \/ 171 CFM\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe corresponding sound pressure level ranges from \u003cstrong\u003e42 to 28 dB(A)\u003c\/strong\u003e depending on the speed. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe minimum level of 28 dB(A) is particularly relevant when a unit must be installed in a bedroom or office. Nevertheless, it should be remembered that the actual perceived sound level also depends on the appliance's location, the room's acoustics, the fan speed, and the required load.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit is rated at \u003cstrong\u003e53 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn Montréal or in dense residential areas of \u003cstrong\u003eLaval, Longueuil, Boucherville, Saint-Lambert or the North Shore\u003c\/strong\u003e, the outdoor unit's position therefore deserves as much attention as its sound rating: bedroom distance, walls that may reflect sound, neighbors, access for servicing, and snow accumulation should all be considered before drilling through the wall.\u003c\/p\u003e\n\u003ch3\u003eVertical and horizontal louvers: a frequently overlooked comfort detail\u003c\/h3\u003e\n\u003cp\u003eAir direction is particularly important with a small wall-mounted heat pump. A 9,000 BTU unit installed in the wrong location may direct its airflow straight toward a bed, workstation, or table.\u003c\/p\u003e\n\u003cp\u003eThe YORK catalogue explicitly lists \u003cstrong\u003eAuto Swing vertical\u003c\/strong\u003e in the specifications for the 115 V model. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe general feature table for the \u003cstrong\u003eP Series\u003c\/strong\u003e also presents \u003cstrong\u003e3D Auto Swing\u003c\/strong\u003e, described by YORK as automatic vertical and horizontal oscillation, as well as up-down and left-right sweep functions. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is why we indicate on our AirGreen page:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVertical control: automatic\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eHorizontal control: automatic\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor a previous-generation product or one from a particular batch, we nevertheless recommend confirming the exact functions of the controller supplied with the unit at the time of purchase.\u003c\/p\u003e\n\u003ch3\u003eCompact dimensions for a relatively discreet wall-mounted installation\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately \u003cstrong\u003e31 × 11 × 8 in\u003c\/strong\u003e, or \u003cstrong\u003e790 × 275 × 200 mm\u003c\/strong\u003e, and its published net weight is approximately 20 lb.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures approximately \u003cstrong\u003e33 × 21 × 12.5 in\u003c\/strong\u003e, or \u003cstrong\u003e848 × 540 × 320 mm\u003c\/strong\u003e, with a net weight of approximately 63 lb. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese dimensions are useful when planning an installation in a limited space, but they do not represent the required installation clearances. Sufficient space must still be provided around the equipment for airflow, service access, connections, and normal operation.\u003c\/p\u003e\n\u003cp\u003eIn Quebec, outdoor installation also requires special consideration of snow. A unit placed too low or in an area where snowdrifts accumulate may become surrounded by snow or ice precisely when heating is needed.\u003c\/p\u003e\n\u003ch3\u003e1\/4–3\/8 piping: a specification to verify before reusing existing lines\u003c\/h3\u003e\n\u003cp\u003eThe YORK DHP09CSB11S uses:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eLiquid: 1\/4 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eGas: 3\/8 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDrain: 5\/8 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum total piping length: 49.2 ft, or 15 m\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum height difference: 33 ft, or 10 m\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese values appear in the model's technical table. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is something we systematically check when a customer wants to replace an old heat pump while keeping the existing piping. The mere fact that two copper lines are already in the wall does not mean they are automatically compatible.\u003c\/p\u003e\n\u003cp\u003eThe diameter, condition of the lines, refrigerant previously used, route length, accessibility, and quality of the connections must all be examined.\u003c\/p\u003e\n\u003ch2\u003eWhich projects is this YORK P Series 9,000 BTU 115V actually suitable for?\u003c\/h2\u003e\n\u003ch3\u003eA good example: a separate zone with a reasonable heating and cooling load\u003c\/h3\u003e\n\u003cp\u003eLet's consider a scenario we regularly encounter in \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e: a homeowner has a house whose main system adequately serves most rooms, but a finished office, an upstairs bedroom, or a small addition remains too hot in summer and uncomfortable during the shoulder seasons.\u003c\/p\u003e\n\u003cp\u003eInstalling a much larger unit can create more problems than solutions. The 9,000 BTU YORK may therefore be of interest when the load calculation confirms that its capacity range suits the room and that the 115 V electrical configuration properly meets the building's requirements.\u003c\/p\u003e\n\u003cp\u003eThe same reasoning can apply to a small commercial office, a room above a garage, or certain apartments where a single-zone system is sufficient.\u003c\/p\u003e\n\u003cp\u003eHowever, we never promise that a 9,000 BTU unit will suit a room based solely on a few square feet mentioned over the phone. \u003cstrong\u003eSizing remains a technical step.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eR-410A: a previous-generation model to consider for what it is\u003c\/h3\u003e\n\u003cp\u003eThis YORK operates with \u003cstrong\u003eR-410A\u003c\/strong\u003e. The charge specified by the manufacturer is approximately \u003cstrong\u003e24.69 oz, or 0.7 kg\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the buyer, this mainly makes it possible to properly place the product in context. It is an older platform than the newer generations of heat pumps using refrigerants such as R-32 or R-454B.\u003c\/p\u003e\n\u003cp\u003eThis does not automatically make the unit unsuitable. Rather, its price, availability, efficiency, intended use, parts, warranty, and winter performance should be compared with the solutions currently available.\u003c\/p\u003e\n\u003cp\u003eFor a new project where the priority is the best possible performance at very low temperatures or access to current financial assistance programs, comparing it with \u003cstrong\u003ecold-climate ENERGY STAR\u003c\/strong\u003e equipment is particularly relevant.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR and LogisVert: do not assume that a heat pump automatically qualifies for a rebate\u003c\/h3\u003e\n\u003cp\u003eOur product sheet identifies this combination as \u003cstrong\u003enot ENERGY STAR\u003c\/strong\u003e and \u003cstrong\u003enot ENERGY STAR – Cold Climate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis information has a direct impact on current programs. Hydro-Québec notably requires a \u003cstrong\u003ecold-climate ENERGY STAR-certified\u003c\/strong\u003e heat pump for the LogisVert measures applicable to wall-mounted heat pumps. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTherefore, \u003cstrong\u003ethe YORK DHP09CSB11S \/ DHP09NWB11S should not be purchased on the assumption that it will receive a LogisVert rebate\u003c\/strong\u003e simply because it is a heat pump.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we prefer to verify the eligibility of the specific model before signing rather than present hypothetical financial assistance that would not apply to the installed equipment.\u003c\/p\u003e\n\u003ch3\u003eOptional Wi-Fi with CS532AH adapter\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDRCPX\u003c\/strong\u003e wireless remote is listed as the system's standard controller.\u003c\/p\u003e\n\u003cp\u003eFor Wi-Fi connectivity, YORK states that a \u003cstrong\u003eCS532AH adapter is required\u003c\/strong\u003e for the P and X Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e The catalog also specifies that the P, X, and Z Series could be controlled through the EWPE Smart app, with the adapter required for the P and X Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore correctly classify this feature as \u003cstrong\u003eoptional Wi-Fi\u003c\/strong\u003e, not built-in Wi-Fi.\u003c\/p\u003e\n\u003cp\u003eSince this platform dates back several years, a customer who now considers mobile connectivity an essential feature should confirm the adapter's availability and the app's current compatibility before installation.\u003c\/p\u003e\n\u003ch3\u003eWarranty: why registering the unit matters\u003c\/h3\u003e\n\u003cp\u003eThe 2020 YORK catalog lists a standard warranty of \u003cstrong\u003e7 years on the compressor and 5 years on parts\u003c\/strong\u003e, followed by coverage extended to \u003cstrong\u003e10 years on the compressor and 10 years on parts\u003c\/strong\u003e after eligible equipment registration. Extended labor protection is also presented as a separate option. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur AirGreen product sheet therefore presents the product coverage as \u003cstrong\u003e10-10-0 years\u003c\/strong\u003e, meaning compressor, parts, and no manufacturer labor warranty included in this notation, with the possibility of additional coverage.\u003c\/p\u003e\n\u003cp\u003eThe key point is simple: \u003cstrong\u003esystem registration should not be forgotten after installation\u003c\/strong\u003e. For a unit whose extended coverage depends on registration, this step can represent several additional years of protection.\u003c\/p\u003e\n\u003ch3\u003eThe five mistakes we aim to avoid with this model\u003c\/h3\u003e\n\u003cp\u003eWhen a 9,000 BTU 115 V YORK P Series unit is being considered, several mistakes occur more often than others:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoosing the model solely because it operates at 115 V.\u003c\/strong\u003e The 17 A MCA and 25 A MOCP require a proper electrical assessment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterpret “heating down to -20°C” as “9,600 BTUs available at -20°C.”\u003c\/strong\u003e A minimum operating temperature is not a guarantee of rated capacity at that temperature.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReading “P Series 18 SEER” as the exact rating for this model.\u003c\/strong\u003e The 9,000 BTU 115 V combination is listed at \u003cstrong\u003e16 SEER\u003c\/strong\u003e in YORK's technical documentation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssuming that a rebate is available.\u003c\/strong\u003e This model is not identified as ENERGY STAR – Cold Climate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatically reusing old piping.\u003c\/strong\u003e The system requires a \u003cstrong\u003e1\/4–3\/8 in. connection\u003c\/strong\u003e, with precise length and elevation-difference limits.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThese details may seem secondary when comparing only the prices of several heat pumps. On a job site, however, they determine whether the installation is simple, correct, and suited to the building.\u003c\/p\u003e\n\u003ch3\u003eWhy have this heat pump installed by AirGreen\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we install wall-mounted systems in very different buildings throughout \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and the greater metropolitan area\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a YORK 9,000 BTU 115 V, our work does not simply consist of mounting two units and connecting them. We examine, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe capacity actually required for the area;\u003c\/li\u003e\n\u003cli\u003ethe available electrical supply;\u003c\/li\u003e\n\u003cli\u003ethe interior wall location and air distribution;\u003c\/li\u003e\n\u003cli\u003ethe outdoor unit's position;\u003c\/li\u003e\n\u003cli\u003ethe length and diameter of the piping;\u003c\/li\u003e\n\u003cli\u003econdensate drainage;\u003c\/li\u003e\n\u003cli\u003efuture access for maintenance and service;\u003c\/li\u003e\n\u003cli\u003eexpected heating performance;\u003c\/li\u003e\n\u003cli\u003eactual eligibility for rebate programs;\u003c\/li\u003e\n\u003cli\u003ewarranty and registration conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis approach is particularly important with a unit such as the \u003cstrong\u003eYORK P Series DHP09CSB11S \/ DHP09NWB11S\u003c\/strong\u003e, whose main appeal lies in a fairly specific combination: \u003cstrong\u003e9,000 BTU, 115 V power supply, compact wall-mounted design, and heating operation down to -20 °C\u003c\/strong\u003e, but without ENERGY STAR – Cold Climate certification.\u003c\/p\u003e\n\u003cp\u003eFor some buildings, this combination meets the need very well. For others, a newer heat pump better suited to extreme cold will be a more logical investment. Our role is to make this distinction before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre you considering the YORK P Series 9000 BTU 115 V, or would you like to compare it with a newer wall-mounted heat pump? Contact AirGreen for a quote and a recommendation tailored to your property in Montreal, Laval, Longueuil, the North Shore, or the South Shore. We can check the capacity, electrical installation, piping configuration, and options currently eligible for financial assistance before you make your decision.\u003c\/strong\u003e\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120362729764,"sku":"DHP09CSB11S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_MURALE_YORK_SERIE_P_9000_BTU_115V_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_c815936f-ae65-412f-b2af-276f0b71bca4.png?v=1789426073"},{"product_id":"thermopompe-murale-york-serie-p-18-seer-12000-btu-115v","title":"YORK P Series Wall-Mounted Heat Pump 18 SEER | 12000 BTU 115V","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA compact 115 V wall-mounted heat pump for projects where the electrical supply matters as much as comfort\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYORK P Series 12,000 BTU 115 V wall-mounted heat pump\u003c\/strong\u003e holds a distinctive place among ductless systems. Its rated capacity of \u003cstrong\u003e12,000 BTU\/h in cooling\u003c\/strong\u003e, operation on \u003cstrong\u003e115 V\u003c\/strong\u003e, Inverter technology compressor, and heating capacity down to \u003cstrong\u003e-20 °C\u003c\/strong\u003e make it an option worth considering for certain apartments, condominiums, older homes, offices, or additions where a 208\/230 V installation is not necessarily the most practical solution.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, when we assess a wall-mounted heat pump installation in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, or the South Shore\u003c\/strong\u003e, we never look only at the number of BTUs. The available voltage, electrical panel capacity, room layout, refrigerant line length, possible outdoor unit location, and the homeowner’s expectations for winter heating directly influence the choice.\u003c\/p\u003e\n\u003cp\u003eThe pair that interests us here is very specific:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: DHP12CSB11S\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: DHP12NWB11S\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated cooling capacity: 12,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating capacity: 13,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 115 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-410A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant piping: 1\/4 in. liquid and 3\/8 in. gas\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating operation: down to -20 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi: available with adapter\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI listed on our product sheet: 8578533\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe YORK brochure confirms a modulating capacity for this combination of \u003cstrong\u003e3,753 to 12,500 BTU\/h in cooling\u003c\/strong\u003e and \u003cstrong\u003e3,412 to 15,013 BTU\/h in heating\u003c\/strong\u003e, with an EER of 10.55, a SEER of 16, and an HSPF of 9. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eAn important clarification about the name “P Series 18 SEER”\u003c\/h3\u003e\n\u003cp\u003eThe commercial name of this product line can easily cause confusion. YORK presents the family as the \u003cstrong\u003eP Series up to 18 SEER\u003c\/strong\u003e, but the 2020 technical documentation indicates that the \u003cstrong\u003eDHP12NWB11S \/ DHP12CSB11S 12,000 BTU, 115 V pair has a SEER of 16\u003c\/strong\u003e, not 18.\u003c\/p\u003e\n\u003cp\u003eThis is a distinction we consider important at AirGreen. The maximum efficiency advertised for an entire series is not always the efficiency of each of its capacities and electrical configurations.\u003c\/p\u003e\n\u003cp\u003eIt is also important to avoid directly comparing this \u003cstrong\u003eSEER\u003c\/strong\u003e with the \u003cstrong\u003eSEER2\u003c\/strong\u003e of newer heat pumps. The YORK brochure used for this P Series applies the older SEER, EER, and HSPF metrics. When a property owner compares this unit with a current-generation R-32 or R-454B heat pump, we compare the technical specifications according to their respective evaluation methods rather than simply placing two figures side by side.\u003c\/p\u003e\n\u003ch3\u003eWhy 115 V can be beneficial in a renovation project\u003c\/h3\u003e\n\u003cp\u003eOne of the main distinguishing features of the \u003cstrong\u003eDHP12CSB11S\u003c\/strong\u003e model is its \u003cstrong\u003e115 V\u003c\/strong\u003e power supply.\u003c\/p\u003e\n\u003cp\u003eIn many older Montreal buildings, duplexes, triplexes, certain condos, or commercial spaces developed in stages, electrical constraints can play a significant role. A 115 V unit can sometimes simplify the electrical design compared with a heat pump requiring a 208\/230 V power supply.\u003c\/p\u003e\n\u003cp\u003eHowever, this does not mean that the unit should be connected to a standard residential outlet.\u003c\/p\u003e\n\u003cp\u003eFor the 12,000 BTU model, YORK specifies:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRated cooling current: 12.4 A\u003c\/strong\u003e,\u003cbr\u003e\u003cstrong\u003eRated heating current: 13.5 A\u003c\/strong\u003e,\u003cbr\u003e\u003cstrong\u003eMCA: 20 A\u003c\/strong\u003e,\u003cbr\u003e\u003cstrong\u003eMOCP: 30 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe electrical installation must therefore be planned correctly. At AirGreen, we check the panel configuration, electrical routing, and equipment requirements before considering whether a 115 V system actually represents an advantage for the building.\u003c\/p\u003e\n\u003ch3\u003eA more useful modulating capacity than a simple 12,000 BTU figure\u003c\/h3\u003e\n\u003cp\u003eAn Inverter heat pump does not operate continuously at its maximum capacity. It adjusts the compressor output to the room’s actual demand.\u003c\/p\u003e\n\u003cp\u003eFor this YORK P Series, the stated cooling range is \u003cstrong\u003e3,753 to 12,500 BTU\/h\u003c\/strong\u003e. In heating mode, modulation ranges from \u003cstrong\u003e3,412 to 15,013 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis range is important in a primary bedroom, living room, open-concept apartment, or office whose needs vary significantly depending on the time of day. As the temperature approaches the setpoint, the unit can reduce its capacity rather than operate only in on-off cycles.\u003c\/p\u003e\n\u003cp\u003eIn the field, this is precisely what we look for when properly sizing a system: a machine capable of operating for long periods at partial load instead of an oversized unit that reaches the target temperature quickly, shuts off, and then restarts frequently.\u003c\/p\u003e\n\u003cp\u003eAn oversized heat pump is not automatically more comfortable. It can lead to shorter cycles, less consistent humidity management, and more noticeable temperature fluctuations.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -20°C: useful, but it is important to understand what this means\u003c\/h3\u003e\n\u003cp\u003eThe 12,000 BTU P Series is specified to operate in heating mode between \u003cstrong\u003e-20 °C and 24 °C outdoors\u003c\/strong\u003e. Its outdoor cooling range extends from \u003cstrong\u003e-18 °C to 46 °C\u003c\/strong\u003e. YORK also confirms the use of \u003cstrong\u003eR-410A\u003c\/strong\u003e for this generation of equipment. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, operation permitted down to -20 °C does not necessarily mean that the unit delivers its full rated capacity of 13,000 BTU at -20 °C.\u003c\/p\u003e\n\u003cp\u003eThe brochure provides a rated capacity and an operating range, but this table does not give the exact heating capacity at -8 °C, -15 °C, and -20 °C for this pair. We therefore avoid making up these values.\u003c\/p\u003e\n\u003cp\u003eFor a Greater Montreal homeowner who wants to use a heat pump as the primary heating source, this point is essential. Winter temperatures in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/strong\u003e can fall below -20 °C. A serious analysis must then take into account the existing backup heating system and the home's actual heating load.\u003c\/p\u003e\n\u003ch3\u003eIndoor sound level: 29 dB(A) at the lowest setting\u003c\/h3\u003e\n\u003cp\u003eAcoustic comfort is particularly important when an indoor unit is installed in a bedroom, office, or small condo.\u003c\/p\u003e\n\u003cp\u003eFor the \u003cstrong\u003eDHP12NWB11S\u003c\/strong\u003e, YORK lists four sound pressure levels corresponding to the different fan speeds:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e43 \/ 39 \/ 35 \/ 29 dB(A).\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe airflow rate varies accordingly between:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e400 \/ 318 \/ 241 \/ 194 CFM.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese four levels give the unit some flexibility. At low demand, an airflow rate of 194 CFM and a stated sound level of 29 dB(A) are much better suited to a bedroom than continuous operation at maximum speed.\u003c\/p\u003e\n\u003cp\u003eThe official dimensions of the 12,000 BTU indoor unit are \u003cstrong\u003e33 in wide × 11 in deep × 8 in high\u003c\/strong\u003e, or approximately \u003cstrong\u003e845 × 289 × 209 mm\u003c\/strong\u003e. The documentation indicates a net weight of approximately 22 lb. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis detail deserves emphasis because some older online listings may show a width of 31 in. For the \u003cstrong\u003eDHP12NWB11S\u003c\/strong\u003e, the YORK technical table provided in the brochure clearly indicates \u003cstrong\u003e33 × 11 × 8 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eVertical and horizontal louvers: true control over air distribution\u003c\/h3\u003e\n\u003cp\u003eThe air distribution of a wall-mounted heat pump directly affects the feeling of comfort. A unit can reach the right temperature while still creating an uncomfortable area if its airflow blows directly onto a sofa, bed, or desk.\u003c\/p\u003e\n\u003cp\u003eThe P Series feature table notably mentions:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3D Auto Swing, including vertical and horizontal oscillation\u003c\/strong\u003e,\u003cbr\u003e\u003cstrong\u003eUp and Down Swing\u003c\/strong\u003e,\u003cbr\u003e\u003cstrong\u003eLeft and Right Swing\u003c\/strong\u003e,\u003cbr\u003eas well as \u003cstrong\u003eFixed-Angle Swing\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis helps distribute the air over a wider area and better adapt the airflow to the room’s geometry.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, the positioning of the unit is nevertheless more important than the sophistication of the louvers. Installing a wall-mounted unit simply because a wall is available can produce a mediocre result. Instead, we look for a position that promotes natural airflow throughout the room while avoiding blowing directly on the occupants.\u003c\/p\u003e\n\u003ch3\u003eStandard Remote and Optional Wi-Fi\u003c\/h3\u003e\n\u003cp\u003eThe P Series comes with a \u003cstrong\u003eDRCPX wireless remote control\u003c\/strong\u003e. Wi-Fi is not built in directly: the documentation indicates that a \u003cstrong\u003eCS532AH adapter\u003c\/strong\u003e is required. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe mobile app can then allow certain settings to be changed from a phone or tablet. YORK documentation also mentions the EWPE Smart app for the P and X Series when the necessary adapter is installed. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a cottage, a dwelling used occasionally, or a room whose temperature must be adjusted before the occupants arrive, this option can be practical. For a homeowner who never uses remote controls, keeping the standard remote is just as reasonable.\u003c\/p\u003e\n\u003ch2\u003eInstallation in Montreal, Laval, Longueuil, on the North Shore and South Shore: the details that determine the result\u003c\/h2\u003e\n\u003ch3\u003e1\/4 in. - 3\/8 in. piping and a maximum length of 65 feet\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHP12CSB11S\u003c\/strong\u003e uses a \u003cstrong\u003e1\/4 in.\u003c\/strong\u003e liquid line and a \u003cstrong\u003e3\/8 in.\u003c\/strong\u003e gas line.\u003c\/p\u003e\n\u003cp\u003eFor the 12,000 BTU 115 V model, YORK also indicates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003emaximum total piping length: 65 ft (20 m);\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003emaximum height difference: 33 ft (10 m);\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003edrain diameter: 5\/8 in.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese limits can become critical in a high-floor condo, a home where the outdoor unit must be placed far from the wall-mounted indoor unit, or a project requiring several architectural elements to be bypassed.\u003c\/p\u003e\n\u003cp\u003eIn a relatively simple installation, we always try to keep the refrigerant route as direct as possible. Each additional detour affects the amount of piping, drainage, the appearance of the line-hide covers, and sometimes the project cost.\u003c\/p\u003e\n\u003ch3\u003eDrainage deserves just as much attention as the refrigerant lines\u003c\/h3\u003e\n\u003cp\u003eNot all wall-mounted heat pump problems originate in the refrigeration circuit. An improper drain slope can cause water accumulation, overflow, or recurring maintenance issues.\u003c\/p\u003e\n\u003cp\u003eBefore installation, we therefore determine:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe exact position of the indoor unit;\u003c\/li\u003e\n\u003cli\u003ethe piping route;\u003c\/li\u003e\n\u003cli\u003ethe condensate drain outlet;\u003c\/li\u003e\n\u003cli\u003ethe available slope;\u003c\/li\u003e\n\u003cli\u003ethe outdoor unit’s position;\u003c\/li\u003e\n\u003cli\u003ethe required electrical supply.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWhen gravity drainage is not possible, a condensate pump may be necessary. However, we prefer natural drainage whenever the building configuration allows it, since this reduces the number of mechanical components requiring maintenance.\u003c\/p\u003e\n\u003ch3\u003eCompact outdoor unit: 33 × 21 × 12.5 in\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit \u003cstrong\u003eDHP12CSB11S\u003c\/strong\u003e measures approximately \u003cstrong\u003e33 in × 21 in × 12.5 in\u003c\/strong\u003e, or 848 × 540 × 320 mm. Its stated sound pressure level is \u003cstrong\u003e53 dB(A)\u003c\/strong\u003e. YORK also indicates a factory refrigerant charge of 31.74 oz, or approximately 0.9 kg. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese dimensions make it easier to integrate the unit on certain balconies, wall brackets, or side locations, but installation compliance always depends on the manufacturer’s clearances and the rules applicable to the building.\u003c\/p\u003e\n\u003cp\u003eIn Greater Montreal, the constraints are not the same for a bungalow on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, a Montreal duplex, a \u003cstrong\u003eLaval\u003c\/strong\u003e condo, or a townhouse in \u003cstrong\u003eLongueuil\u003c\/strong\u003e. The best location depends as much on service accessibility as on aesthetics and the surrounding area.\u003c\/p\u003e\n\u003ch3\u003eAn example of a situation where this 115 V YORK unit may be suitable\u003c\/h3\u003e\n\u003cp\u003eA scenario we regularly encounter during our estimates involves a homeowner who wants to cool and heat a main living area of approximately one zone, but does not want to unnecessarily modify the electrical installation.\u003c\/p\u003e\n\u003cp\u003eFor this type of project, a 12,000 BTU 115 V heat pump may be a good option if the calculated heat load actually matches this capacity.\u003c\/p\u003e\n\u003cp\u003eWe then check several factors before recommending the model:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003einsulation and sun exposure\u003c\/strong\u003e, the room’s area and volume, the number of windows, airflow to adjacent rooms, existing heating, electrical panel capacity, and the outdoor unit’s location.\u003c\/p\u003e\n\u003cp\u003eThis approach avoids a common mistake: automatically choosing 12,000 BTU solely because the area seems to match a chart found online.\u003c\/p\u003e\n\u003cp\u003eTwo homes of the same size can have very different heating loads.\u003c\/p\u003e\n\u003ch3\u003eWhen we would instead direct the customer toward another heat pump\u003c\/h3\u003e\n\u003cp\u003eThe YORK P Series 12,000 BTU 115 V is not intended for every project.\u003c\/p\u003e\n\u003cp\u003eWe would consider a different solution when a customer is primarily looking for:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ean ENERGY STAR Cold Climate-certified heat pump\u003c\/strong\u003e, documented performance at -25 °C or -30 °C, eligibility for a current subsidy based on a list of qualified equipment, a next-generation refrigerant, or significantly higher seasonal efficiency.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product sheet for this model currently indicates \u003cstrong\u003eENERGY STAR: No\u003c\/strong\u003e, \u003cstrong\u003eENERGY STAR Cold Climate: No\u003c\/strong\u003e, and no provincial LogisVert subsidy associated with the product.\u003c\/p\u003e\n\u003cp\u003eThis YORK should therefore be considered for what it is: a 115 V Inverter wall-mounted heat pump from an earlier generation, offering an interesting solution for certain targeted projects, but it should not be presented as equivalent to a latest-generation ultra-low-temperature heat pump.\u003c\/p\u003e\n\u003cp\u003eThis transparency helps a homeowner make a good decision far more than a comparison based solely on price or the number of BTUs.\u003c\/p\u003e\n\u003ch3\u003eWarranty: check the registration terms\u003c\/h3\u003e\n\u003cp\u003eOur AirGreen product sheet lists a warranty of \u003cstrong\u003e10 years on the compressor, 10 years on parts, and no manufacturer labor warranty indicated in this format\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe 2020 YORK brochure does, however, provide an important clarification: it presented a standard warranty of \u003cstrong\u003e7 years on the compressor and 5 years on parts\u003c\/strong\u003e, extended to \u003cstrong\u003e10 years on the compressor and 10 years on parts after online registration for eligible residential installations\u003c\/strong\u003e. Labor coverage was presented separately as a paid option. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor this reason, we always recommend confirming the terms applicable to the serial number of the product actually sold and completing the required registration after installation. The conditions in a brochure published several years ago should not automatically be assumed to be identical to those of the product sold today.\u003c\/p\u003e\n\u003ch3\u003eThree errors we seek to avoid with this type of installation\u003c\/h3\u003e\n\u003cp\u003eThe first is to consider the \u003cstrong\u003e115 V\u003c\/strong\u003e as permission to connect the heat pump to any existing circuit. With an MCA of 20 A and an MOCP of 30 A, the electrical design must be done correctly.\u003c\/p\u003e\n\u003cp\u003eThe second is installing the indoor unit without considering the airflow direction. Even with vertical and horizontal swing, a head aimed directly at a bed or work table can become uncomfortable.\u003c\/p\u003e\n\u003cp\u003eThe third is choosing capacity based solely on floor area. A proper \u003cstrong\u003ewall-mounted heat pump installation\u003c\/strong\u003e considers the building as a whole: insulation, windows, orientation, ceiling height, open rooms, and winter heating needs.\u003c\/p\u003e\n\u003ch3\u003eYORK P Series Maintenance\u003c\/h3\u003e\n\u003cp\u003eLike any wall-mounted heat pump, this YORK unit must maintain a clean heat exchanger and sufficient airflow.\u003c\/p\u003e\n\u003cp\u003eThe homeowner can periodically clean the accessible filters of the indoor unit. When the blower wheel, evaporator, or drain pan accumulates dust or deposits, \u003cstrong\u003edeep cleaning of a wall-mounted heat pump\u003c\/strong\u003e becomes advisable.\u003c\/p\u003e\n\u003cp\u003eReduced airflow, a persistent odor, water flowing indoors, or a significant change in performance are signs that warrant an inspection.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit must also have sufficient clearance around its heat exchanger. In winter, snow or ice buildup around the outdoor unit can restrict airflow and compromise operation.\u003c\/p\u003e\n\u003ch3\u003eIs the YORK P Series 12,000 BTU 115 V still a suitable choice?\u003c\/h3\u003e\n\u003cp\u003eIt can be when the building’s characteristics precisely match its strengths.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e115 V\u003c\/strong\u003e power supply, relatively common \u003cstrong\u003e1\/4 in - 3\/8 in\u003c\/strong\u003e piping, compact format, Inverter modulation, heating operation down to -20 °C, and motorized louvers on both axes make it a practical solution for certain residential or light commercial projects.\u003c\/p\u003e\n\u003cp\u003eHowever, homeowners who prioritize heating in extreme cold or available rebates should compare this unit with newer generations before making a decision.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, our job is precisely to make this comparison before installation, not afterward.\u003c\/p\u003e\n\u003ch3\u003eWhy have AirGreen assess the project\u003c\/h3\u003e\n\u003cp\u003eWe install and maintain HVAC systems throughout \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e, including \u003cstrong\u003eMontreal, Laval, Longueuil, Boucherville, the South Shore, and the North Shore\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eDuring an assessment, we can verify the capacity actually required, the electrical configuration, the piping route, drainage, the outdoor unit’s location, and whether investing in this model rather than a newer heat pump makes sense.\u003c\/p\u003e\n\u003cp\u003eThe goal is not to automatically sell the equipment with the most impressive specifications. We seek an installation that is appropriate for the building, budget, and intended use.\u003c\/p\u003e\n\u003ch3\u003eFAQ – YORK P Series 12,000 BTU 115 V\u003c\/h3\u003e\n\u003ch4\u003eWhat is the outdoor model number?\u003c\/h4\u003e\n\u003cp\u003eThe outdoor unit is the \u003cstrong\u003eYORK DHP12CSB11S\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eWhat is the indoor model number?\u003c\/h4\u003e\n\u003cp\u003eThe indoor wall-mounted unit is the \u003cstrong\u003eDHP12NWB11S\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eWhat is the cooling capacity?\u003c\/h4\u003e\n\u003cp\u003eThe rated capacity is \u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e, with an advertised modulating range of \u003cstrong\u003e3,753 to 12,500 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eWhat is the heating capacity?\u003c\/h4\u003e\n\u003cp\u003eThe rated capacity is \u003cstrong\u003e13,000 BTU\/h\u003c\/strong\u003e, with a range of \u003cstrong\u003e3,412 to 15,013 BTU\/h\u003c\/strong\u003e under the conditions specified by YORK.\u003c\/p\u003e\n\u003ch4\u003eDown to what outdoor temperature can it provide heating?\u003c\/h4\u003e\n\u003cp\u003eThe published heating operating range extends down to \u003cstrong\u003e-20 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eDoes it operate at 115 V?\u003c\/h4\u003e\n\u003cp\u003eYes. It operates at \u003cstrong\u003e115 V, single-phase, 60 Hz\u003c\/strong\u003e. This does not eliminate the need to provide an electrical circuit that complies with the unit’s requirements.\u003c\/p\u003e\n\u003ch4\u003eWhat piping does it use?\u003c\/h4\u003e\n\u003cp\u003eThe refrigerant piping is \u003cstrong\u003e1\/4 in. for liquid and 3\/8 in. for gas\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eWhat piping length can be installed?\u003c\/h4\u003e\n\u003cp\u003eThe documentation indicates up to \u003cstrong\u003e65 ft of total length\u003c\/strong\u003e, with a maximum height difference of \u003cstrong\u003e33 ft\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eIs Wi-Fi included?\u003c\/h4\u003e\n\u003cp\u003eWi-Fi is \u003cstrong\u003eoptional\u003c\/strong\u003e and requires the \u003cstrong\u003eCS532AH\u003c\/strong\u003e adapter.\u003c\/p\u003e\n\u003ch4\u003eDo the louvers move automatically horizontally and vertically?\u003c\/h4\u003e\n\u003cp\u003eYes. YORK’s P Series function table lists automatic vertical and horizontal swing, as well as up\/down and left\/right movement functions.\u003c\/p\u003e\n\u003ch4\u003eIs it ENERGY STAR Cold Climate?\u003c\/h4\u003e\n\u003cp\u003eThe AirGreen product page indicates \u003cstrong\u003eNo\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eIs it eligible for LogisVert?\u003c\/h4\u003e\n\u003cp\u003eThe AirGreen product page currently lists \u003cstrong\u003eno LogisVert rebate\u003c\/strong\u003e for this configuration. If the rebate is important for your project, we recommend comparing it with eligible heat pumps available at the time of purchase.\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen estimate\u003c\/h3\u003e\n\u003cp\u003eAre you considering the \u003cstrong\u003eYORK P Series 12,000 BTU 115 V\u003c\/strong\u003e, or would you like to know whether a newer heat pump would be better suited to your property? \u003cstrong\u003eContact AirGreen for an estimate and an analysis of your HVAC system\u003c\/strong\u003e in Montréal, Laval, Longueuil, the North Shore, or the South Shore. We can check the capacity, electrical supply, positioning, and available options before you commit to the work.\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120363581732,"sku":"DHP12CSB11S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_MURALE_YORK_SERIE_P_12000_BTU_115V_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_8feb076e-bcc8-431d-a22c-4793fa5cd1fc.png?v=1789426074"},{"product_id":"thermopompe-murale-york-serie-p-18-seer-9000-btu-220v","title":"YORK P Series Wall-Mounted Heat Pump 18 SEER | 9000 BTU 220V","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA particularly interesting 9,000 BTU size when a room does not need an oversized heat pump\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYORK P Series 9,000 BTU 220 V wall-mounted heat pump\u003c\/strong\u003e belongs to a category of equipment we use when a specific area needs to be treated without unnecessarily installing a much higher capacity. A primary bedroom, enclosed office, small condo, addition, or section of a home that is difficult to cool are examples where a \u003cstrong\u003e9,000 BTU\u003c\/strong\u003e unit can make much more sense than a 12,000 or 18,000 BTU unit, provided the load calculation confirms it.\u003c\/p\u003e\n\u003cp\u003eIn YORK documentation, the P Series is a \u003cstrong\u003esingle-zone mini-split range with Inverter technology\u003c\/strong\u003e. The principle is important: instead of operating continuously according to an on-or-off logic, the compressor modulates its capacity according to the heating or cooling demand. YORK explains that its ductless systems adjust refrigerant flow according to the zone’s needs and use an Inverter compressor to maintain the temperature more precisely. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor this version, the combination that interests us is very specific: the \u003cstrong\u003eDHP09NWB21S indoors and DHP09CSB21S outdoors\u003c\/strong\u003e, powered by \u003cstrong\u003e208\/230 V\u003c\/strong\u003e. YORK clearly identifies this pair as the 9,000 BTU\/h, 208\/230 V P Series heat pump. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThere is, however, a technical nuance that we believe is important to present clearly. The family’s commercial name is \u003cstrong\u003e“P Series 18 SEER”\u003c\/strong\u003e, hence this product’s title, but the performance table for the \u003cstrong\u003eDHP09NWB21S + DHP09CSB21S\u003c\/strong\u003e combination indicates a \u003cstrong\u003eSEER of 16\u003c\/strong\u003e, an \u003cstrong\u003eEER of 10\u003c\/strong\u003e, and an \u003cstrong\u003eHSPF of 9\u003c\/strong\u003e. The term “18 SEER” therefore describes the series and its maximum performance depending on the configurations, but not necessarily the exact rating for every capacity. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, this type of distinction matters. When a homeowner in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore or the South Shore\u003c\/strong\u003e compares several heat pumps, we prefer to examine the AHRI combination and the exact numbers of both units rather than focus on the general name printed on a brochure.\u003c\/p\u003e\n\u003ch3\u003eDHP09NWB21S and DHP09CSB21S: the technical figures that really matter\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet identifies the \u003cstrong\u003eDHP09CSB21S\u003c\/strong\u003e outdoor unit, the \u003cstrong\u003eDHP09NWB21S\u003c\/strong\u003e indoor unit, and reference \u003cstrong\u003eAHRI 8578537\u003c\/strong\u003e. YORK documentation then allows us to go much further into the specific characteristics of this combination.\u003c\/p\u003e\n\u003cp\u003eThe main published specifications are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eRated cooling capacity: 9,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling range: 3,100 to 9,600 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating capacity: 9,500 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating range: 3,100 to 12,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER: 10\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER: 16 for this specific combination\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF: 9\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated cooling current: 4 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating current: 3.6 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 9 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOCP\/MOP: 15 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R410A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant piping: 1\/4 in. liquid and 3\/8 in. gas\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDrain: 5\/8 in.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum piping length: 49.2 ft, or 15 m\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum elevation difference: 33 ft, or 10 m\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating operating range: -20 °C to 24 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling operating range: -18 °C to 46 °C\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 values help clarify the role of this YORK unit. It is a small wall-mounted heat pump capable of dropping to approximately \u003cstrong\u003e3,100 BTU\/h\u003c\/strong\u003e when demand is low and increasing to as much as \u003cstrong\u003e12,000 BTU\/h in heating\u003c\/strong\u003e within its published modulation range. This range is particularly relevant in a small room, where a unit that constantly operates at full capacity would often be uncomfortable.\u003c\/p\u003e\n\u003ch3\u003eWhy a 9,000 BTU capacity may be preferable to 12,000 BTU\u003c\/h3\u003e\n\u003cp\u003eDuring our \u003cstrong\u003eair conditioning and heating projects in Greater Montreal\u003c\/strong\u003e, we regularly see the same pattern: a homeowner prefers to buy a larger unit “to be safe.” Yet in HVAC, more BTUs are not automatically an improvement.\u003c\/p\u003e\n\u003cp\u003eAn oversized unit can reach the requested temperature too quickly, shorten its operating time, and provide less effective humidity control. It may also create excessive drafts in a small bedroom.\u003c\/p\u003e\n\u003cp\u003eConversely, an undersized unit may risk operating near its limit for extended periods.\u003c\/p\u003e\n\u003cp\u003eTo determine whether the \u003cstrong\u003eYORK 9,000 BTU\u003c\/strong\u003e is suitable, we consider the room’s area, ceiling height, number and size of windows, sun exposure, insulation, floor level, and airflow to adjacent spaces.\u003c\/p\u003e\n\u003cp\u003eIn a Montreal duplex, for example, a third-floor bedroom with a large west-facing window does not necessarily have the same cooling load as a room of identical size on the shaded ground floor. That is precisely why we avoid selecting a \u003cstrong\u003ewall-mounted heat pump\u003c\/strong\u003e based solely on the number of square feet.\u003c\/p\u003e\n\u003ch3\u003eA compact indoor unit: 31 in wide\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHP09NWB21S\u003c\/strong\u003e indoor unit measures approximately \u003cstrong\u003e31 × 11 × 8 in\u003c\/strong\u003e, or 790 × 275 × 200 mm according to YORK. It weighs only about 20 lb net. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis size is useful in bedrooms and offices where the available space above a door or between two walls may be limited.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit is also relatively compact: \u003cstrong\u003e30.5 × 21 × 12.5 in\u003c\/strong\u003e, or 776 × 540 × 320 mm. The brochure indicates an outdoor sound pressure level of \u003cstrong\u003e52 dB(A)\u003c\/strong\u003e for the DHP09CSB21S. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn densely built-up areas of \u003cstrong\u003eMontréal\u003c\/strong\u003e, this size often makes positioning easier than a high-capacity condenser. However, this does not eliminate the need to comply with clearances, applicable municipal requirements, and an installation that limits disturbances for neighbors.\u003c\/p\u003e\n\u003ch3\u003eFour measured airflow rates and indoor operation down to 28 dB(A)\u003c\/h3\u003e\n\u003cp\u003eThe YORK specifications list four airflow values for the DHP09NWB21S:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e318 \/ 288 \/ 241 \/ 171 CFM\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe corresponding sound pressure level ranges from \u003cstrong\u003e42 \/ 38 \/ 34 \/ 28 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe minimum level of \u003cstrong\u003e28 dB(A)\u003c\/strong\u003e is particularly relevant for installation in a bedroom. However, the actual perceived noise depends not only on the figure listed in the technical specifications. The evaporator’s position, its proximity to the bed, vibrations transmitted to the wall, and even the cleanliness of the blower wheel can change the acoustic perception.\u003c\/p\u003e\n\u003cp\u003eDuring an \u003cstrong\u003eHVAC installation\u003c\/strong\u003e, we therefore try to avoid placing the unit directly a few feet from the face of someone sleeping. A quiet heat pump installed in the wrong place can become more bothersome than a slightly louder unit that is better positioned.\u003c\/p\u003e\n\u003ch3\u003eAutomatic vertical and horizontal louvers: a useful feature in small spaces\u003c\/h3\u003e\n\u003cp\u003eThe P Series features a more comprehensive air-control system than a simple vertical louver. The YORK function chart lists \u003cstrong\u003e3D Auto Swing\u003c\/strong\u003e, described as automatic vertical and horizontal sweeping. The P range also offers up-down and left-right swing, as well as fixed-angle adjustment. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is consistent with the AirGreen product sheet, which states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVertical control: Auto\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eHorizontal control: Auto\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor us, this feature is more useful than it may seem. In a narrow room, it is often preferable to direct the air lengthwise rather than straight toward the opposite wall. In a bedroom, we can direct the airflow to reduce the direct draft over the bed. In a small living room opening onto a kitchen, horizontal movement can help distribute the air more evenly.\u003c\/p\u003e\n\u003cp\u003eHowever, louver movement does not turn a single-zone heat pump into a multi-zone system. A closed door remains a significant barrier to air circulation.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi: yes, but with an adapter\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet correctly indicates \u003cstrong\u003eoptional Wi-Fi\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eYORK documentation specifies that the P and X Series use the \u003cstrong\u003eEWPE Smart App\u003c\/strong\u003e and require the \u003cstrong\u003eCS532AH\u003c\/strong\u003e adapter to enable this function. The app then allows the system to be controlled from a phone or tablet. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eDRCPX\u003c\/strong\u003e infrared remote control, on the other hand, comes standard with the P and X Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis distinction avoids a fairly common misunderstanding: the presence of the Wi-Fi symbol in a brochure does not necessarily mean that connectivity is already built into the wall-mounted unit.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -20 °C: understanding what this figure means\u003c\/h3\u003e\n\u003cp\u003eYORK provides a heating operating range of \u003cstrong\u003e-4 °F to 75 °F\u003c\/strong\u003e, corresponding to \u003cstrong\u003e-20 °C to 24 °C\u003c\/strong\u003e, for the DHP09CSB21S. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, a misinterpretation must be avoided. An operating limit of \u003cstrong\u003e-20 °C\u003c\/strong\u003e does not automatically mean that the unit still produces its \u003cstrong\u003e9,500 nominal BTUs\u003c\/strong\u003e when the outdoor air temperature is -20 °C.\u003c\/p\u003e\n\u003cp\u003eThe supplied brochure does not provide a detailed capacity table for this combination at -8 °C, -15 °C, and -20 °C. We therefore cannot arbitrarily assign a heating capacity at these temperatures.\u003c\/p\u003e\n\u003cp\u003eThis is particularly important in Quebec. A homeowner in \u003cstrong\u003eLaval, Terrebonne, Blainville, Longueuil, or Boucherville\u003c\/strong\u003e who wants their heat pump to be the primary heating source must distinguish three elements: the minimum operating temperature, the capacity actually available at that temperature, and the corresponding energy efficiency.\u003c\/p\u003e\n\u003cp\u003eThe 9,000 BTU YORK P can therefore operate within the published range down to -20 °C, but the provided documentation does not allow us to affirm that it retains 100% of its rated capacity at that temperature.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR and subsidies: do not confuse cold-weather operation with cold-climate certification\u003c\/h3\u003e\n\u003cp\u003eThe current product sheet provided by AirGreen classifies this model as \u003cstrong\u003eENERGY STAR: No\u003c\/strong\u003e and \u003cstrong\u003eENERGY STAR Cold Climate: No\u003c\/strong\u003e. The provincial subsidy section does not display an amount.\u003c\/p\u003e\n\u003cp\u003eThis information is consistent with the product's positioning: a heat pump may be capable of operating below zero without carrying \u003cstrong\u003eENERGY STAR cold-climate\u003c\/strong\u003e certification.\u003c\/p\u003e\n\u003cp\u003eFor a customer whose absolute priority is access to a Quebec subsidy, we recommend verifying the AHRI number's eligibility at the time of submission rather than assuming that a heat pump is eligible simply because it heats at low temperatures. Programs and criteria may change, while the exact combination number remains the item to verify.\u003c\/p\u003e\n\u003ch3\u003eSEER, SEER2, HSPF, and HSPF2: be mindful of different standards generations\u003c\/h3\u003e\n\u003cp\u003eThe attached YORK brochure dates from \u003cstrong\u003eNovember 2020\u003c\/strong\u003e. It therefore primarily uses the older \u003cstrong\u003eSEER, EER, and HSPF\u003c\/strong\u003e metrics. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the DHP09NWB21S with DHP09CSB21S, it publishes \u003cstrong\u003eSEER 16, EER 10, and HSPF 9\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA SEER value should not be taken and simply renamed SEER2, nor should an approximate conversion be made when the official rating for the combination is unavailable. The testing procedures are not identical.\u003c\/p\u003e\n\u003cp\u003eOn a product page intended to properly inform a homeowner, we prefer to clearly separate:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003econfirmed historical data from the YORK brochure\u003c\/strong\u003e,\u003cbr\u003e\u003cstrong\u003ecurrent AHRI data when available\u003c\/strong\u003e,\u003cbr\u003eand \u003cstrong\u003ecurrent subsidy classifications\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis method reduces errors that sometimes arise when an older heat pump is integrated into a modern database designed around the SEER2 and HSPF2 fields.\u003c\/p\u003e\n\u003ch2\u003eWhat the installation actually changes regarding the comfort, noise, and lifespan of this YORK\u003c\/h2\u003e\n\u003ch3\u003e1\/4 in – 3\/8 in piping: a detail to check during a replacement\u003c\/h3\u003e\n\u003cp\u003eThe 9,000-BTU combination uses a \u003cstrong\u003e1\/4 in.\u003c\/strong\u003e liquid line and a \u003cstrong\u003e3\/8 in.\u003c\/strong\u003e gas line. YORK limits the total piping length to \u003cstrong\u003e49.2 feet\u003c\/strong\u003e, with a maximum height difference of \u003cstrong\u003e33 feet\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis information becomes particularly important when a customer wants to replace an older heat pump while keeping the existing piping.\u003c\/p\u003e\n\u003cp\u003eWe never assume that an older 9,000- or 12,000-BTU system automatically has the correct diameters. We check the lines, their condition, length, and compatibility before deciding whether they can be reused.\u003c\/p\u003e\n\u003cp\u003eImproper piping can cause problems with refrigerant flow, oil return, and compressor operation. On a \u003cstrong\u003eheat pump installation in Montreal or on the South Shore\u003c\/strong\u003e, this check takes a few minutes but can prevent a much more costly problem after commissioning.\u003c\/p\u003e\n\u003ch3\u003e208\/230 V electrical circuit: MCA 9 A and maximum protection 15 A\u003c\/h3\u003e\n\u003cp\u003eThe term “220 V” used commercially corresponds here to a nominal supply of \u003cstrong\u003e208\/230 V, 1 phase, 60 Hz\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eYORK specifies for the heat pump:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMCA: 9 A\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMOCP: 15 A\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMCA represents the minimum required circuit ampacity, while MOCP or MOP indicates the maximum overcurrent protection recommended by the manufacturer.\u003c\/p\u003e\n\u003cp\u003eFor the installation, we check the nameplate data for the equipment actually delivered as well as the available circuit. This is more reliable than choosing a circuit breaker solely based on the number of BTUs.\u003c\/p\u003e\n\u003ch3\u003eDrainage deserves as much attention as the refrigeration lines\u003c\/h3\u003e\n\u003cp\u003eThe DHP09NWB21S drain is specified at \u003cstrong\u003e5\/8 po\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn a wall-mounted heat pump, a significant portion of water-related service calls is not caused by the refrigeration circuit but by condensate drainage: insufficient slope, dirt buildup, a crushed line, an improper connection, or a blockage.\u003c\/p\u003e\n\u003cp\u003eWe therefore pay close attention to the drain route during installation. A line that looks aesthetically pleasing but rises slightly behind a wall can become problematic on very humid days in July.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eMontreal\u003c\/strong\u003e apartments and plexes, where layouts can be complex, it can sometimes be better to choose a slightly more visible but technically correct route than a hidden path that compromises airflow.\u003c\/p\u003e\n\u003ch3\u003eMaintenance: why 318 CFM today does not guarantee 318 CFM after several seasons\u003c\/h3\u003e\n\u003cp\u003eThe documentation specifies up to \u003cstrong\u003e318 CFM\u003c\/strong\u003e of airflow. This figure obviously assumes that the unit is operating under normal conditions and that the filters, heat exchanger, and blower wheel allow adequate circulation.\u003c\/p\u003e\n\u003cp\u003eOver time, dust can accumulate on the blower wheel. Airflow gradually decreases, and the owner may become accustomed to the change without realizing it. The unit may then run longer, become noisier, or produce less uniform air distribution.\u003c\/p\u003e\n\u003cp\u003eProper \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e therefore involves more than simply cleaning the filters superficially. When the unit is heavily used for cooling, inspecting the evaporator, blower wheel, and drain becomes particularly relevant.\u003c\/p\u003e\n\u003ch3\u003eWarranty: 10 years on the compressor and parts after the applicable registration requirements are met\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing indicates a warranty of \u003cstrong\u003e10 years on the compressor – 10 years on parts – 0 years on labor\u003c\/strong\u003e for this offer.\u003c\/p\u003e\n\u003cp\u003eThe YORK brochure explains the original warranty structure more precisely: \u003cstrong\u003e7 years on the compressor and 5 years on parts under the standard warranty\u003c\/strong\u003e, with an extension to \u003cstrong\u003e10 years on the compressor and 10 years on parts\u003c\/strong\u003e after online registration for eligible residential installations. Ten years of labor coverage was also offered as a separate option. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference explains why registering the equipment after installation is important. We always recommend keeping the model numbers, serial numbers, invoice, and proof of installation with the property documents.\u003c\/p\u003e\n\u003ch3\u003eA typical scenario: small bedroom, oversized unit proposed elsewhere\u003c\/h3\u003e\n\u003cp\u003eA case we regularly encounter in our estimates is that of a small area where the owner received a recommendation for \u003cstrong\u003e12,000 BTU simply because that capacity is more commonly in stock\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOur approach is instead to look at the actual load.\u003c\/p\u003e\n\u003cp\u003eIf a closed room can be properly served by a 9,000 BTU unit, installing more capacity does not necessarily provide greater comfort. The DHP09NWB21S can go down to approximately \u003cstrong\u003e171 CFM at the lowest published airflow\u003c\/strong\u003e, with an indoor sound pressure level of \u003cstrong\u003e28 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e This corresponds precisely to the type of operation sought in a room where quietness and gentle airflow matter as much as maximum power.\u003c\/p\u003e\n\u003cp\u003eConversely, we never force a 9,000 BTU unit into an open-concept area that genuinely requires more capacity simply to take advantage of the unit’s compact size.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for a YORK installation in Greater Montréal\u003c\/h3\u003e\n\u003cp\u003eFor us, selling a \u003cstrong\u003eYORK wall-mounted heat pump\u003c\/strong\u003e does not simply mean delivering two boxes.\u003c\/p\u003e\n\u003cp\u003eThe quality of the result depends on capacity selection, indoor unit placement, condenser support, refrigerant-line routing, drain slope, electrical circuit, outdoor-air discharge, and commissioning.\u003c\/p\u003e\n\u003cp\u003eWe work with the particular realities of buildings in \u003cstrong\u003eMontréal, Laval, Longueuil, the North Shore, the South Shore, and Montérégie\u003c\/strong\u003e: plexes with masonry walls, condos with condominium regulations, homes with limited available façade space, difficult piping routes, balcony installations, and replacements where existing lines must be carefully inspected.\u003c\/p\u003e\n\u003cp\u003eThat is also why we analyze the exact model numbers rather than relying solely on the “18 SEER” label. For this YORK, the documentation confirms a \u003cstrong\u003e9,000 BTU DHP09NWB21S + DHP09CSB21S heat pump in 208\/230 V\u003c\/strong\u003e, with 9,500 nominal BTU in heating, heating modulation up to 12,000 BTU, R410A, 1\/4–3\/8 piping, published operation down to -20 °C, and Wi-Fi connectivity available with an adapter. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eContact AirGreen to verify whether 9,000 BTU is the right capacity\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eYORK P Series 9,000 BTU 220 V\u003c\/strong\u003e can be a highly suitable solution when installed in an area whose load truly matches its capacity. Its compact design, inverter operation, automatic vertical and horizontal louvers, low sound levels, and 1\/4–3\/8 piping make it an interesting configuration for many residential projects.\u003c\/p\u003e\n\u003cp\u003eBefore purchasing, however, we recommend confirming the required capacity, condenser location, line-set length, electrical supply, and expectations for winter heating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen for a quote and a recommendation tailored to your property in Montréal, Laval, Longueuil, the North Shore, or the South Shore. We can confirm whether this 9,000 BTU YORK is suitable for your area or guide you toward a more appropriate capacity when the project calculation requires it.\u003c\/strong\u003e\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120363811108,"sku":"DHP09CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_MURALE_YORK_SERIE_P_9000_BTU_220V_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_c6e2e1c9-e5f7-4bcc-8c51-d8f54bb14565.png?v=1789426074"},{"product_id":"thermopompe-murale-york-serie-p-18-seer-12000-btu-220v","title":"YORK P Series Wall-Mounted Heat Pump 18 SEER | 12000 BTU 220V","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA YORK P Series 12,000 BTU wall-mounted heat pump designed for simple, precise, and efficient control of a zone\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYORK P Series 12,000 BTU 220 V wall-mounted heat pump\u003c\/strong\u003e uses a simple mini-split configuration: a wall-mounted indoor unit \u003cstrong\u003eDHP12NWB21S\u003c\/strong\u003e paired with an outdoor unit \u003cstrong\u003eDHP12CSB21S\u003c\/strong\u003e. This is a single-zone system with an \u003cstrong\u003eInverter\u003c\/strong\u003e-technology compressor, designed for both heating and cooling a room or clearly defined area.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore or the South Shore\u003c\/strong\u003e, the main advantage of this configuration is its simplicity. It requires no ductwork and can directly serve an area with a specific need: a living room, open-concept area, floor, office, addition, apartment, or section of a house where the existing heating system does not distribute the temperature evenly.\u003c\/p\u003e\n\u003cp\u003eThe YORK catalog classifies the P Series among systems capable of reaching \u003cstrong\u003eup to 18 SEER\u003c\/strong\u003e. However, an important technical clarification is needed for the reference presented here: the exact combination \u003cstrong\u003eDHP12NWB21S + DHP12CSB21S\u003c\/strong\u003e, identified by \u003cstrong\u003eAHRI number 8578541\u003c\/strong\u003e, is listed by YORK at \u003cstrong\u003e16 SEER\u003c\/strong\u003e, not 18 SEER. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e The manufacturer's catalog also confirms that the 12,000 BTU 208\/230 V version delivers 12,000 BTU\/h in cooling and 13,000 BTU\/h nominally in heating. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis distinction is important at AirGreen: \u003cstrong\u003ethe name of a series and the certified performance of a specific combination are not always identical\u003c\/strong\u003e. We therefore prefer to work with the complete model number and AHRI number rather than with a commercial name taken in isolation.\u003c\/p\u003e\n\u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cp\u003eFor the YORK \u003cstrong\u003eDHP12NWB21S \/ DHP12CSB21S\u003c\/strong\u003e combination, the manufacturer's data provides a much more precise picture than simply stating “12,000 BTU”:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e single-zone, wall-mounted mini-split heat pump, Inverter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndoor unit:\u003c\/strong\u003e DHP12NWB21S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutdoor unit:\u003c\/strong\u003e DHP12CSB21S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAHRI number:\u003c\/strong\u003e 8578541\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal cooling capacity:\u003c\/strong\u003e 12,000 BTU\/h\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling modulation range:\u003c\/strong\u003e approximately 3,753 to 12,500 BTU\/h\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal heating capacity:\u003c\/strong\u003e 13,000 BTU\/h\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating modulation range:\u003c\/strong\u003e approximately 3,924 to 14,000 BTU\/h\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertified efficiency of this combination:\u003c\/strong\u003e 16 SEER, HSPF 9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower supply:\u003c\/strong\u003e 208\/230 V, single-phase, 60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMCA:\u003c\/strong\u003e 9 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMOCP\/MOP:\u003c\/strong\u003e 15 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerant:\u003c\/strong\u003e R-410A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerant piping:\u003c\/strong\u003e 1\/4 in liquid line, 3\/8 in gas line\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum piping length:\u003c\/strong\u003e approximately 65 ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum height difference:\u003c\/strong\u003e approximately 33 ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndoor airflow:\u003c\/strong\u003e approximately 194 to 400 CFM, depending on speed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndoor sound pressure:\u003c\/strong\u003e approximately 29 to 43 dB(A), depending on speed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutdoor sound pressure:\u003c\/strong\u003e approximately 53 dB(A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndoor dimensions listed in the catalog:\u003c\/strong\u003e approximately 33 × 11 × 8 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutdoor dimensions:\u003c\/strong\u003e approximately 30.5 × 21 × 12.5 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWi-Fi:\u003c\/strong\u003e optional with a compatible adapter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWireless remote control:\u003c\/strong\u003e included according to YORK documentation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating operation:\u003c\/strong\u003e down to approximately -20 °C, according to the manufacturer's operating range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe dimensions, electrical data, sound levels, refrigerant connections, and piping limits for this combination are detailed in the YORK technical table. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy the 18 SEER designation deserves an explanation\u003c\/h3\u003e\n\u003cp\u003eThe term \u003cstrong\u003e“18 SEER P Series”\u003c\/strong\u003e refers to the product family as it was marketed, with P Series configurations capable of reaching 18 SEER. However, the 12,000 BTU combination covered by this page is certified at \u003cstrong\u003e16 SEER under AHRI 8578541\u003c\/strong\u003e. YORK still explicitly lists it as a 1-ton, 16 SEER P Series heat pump. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt is also important to avoid automatically mixing up \u003cstrong\u003eSEER and SEER2\u003c\/strong\u003e. This YORK generation was evaluated using the former SEER\/HSPF certification methods. A SEER2 value should therefore not be invented by mathematically converting the original SEER. To compare this system with a current wall-mounted heat pump, we instead recommend comparing the complete AHRI directories and low-temperature capacities.\u003c\/p\u003e\n\u003cp\u003eThis approach avoids an error we regularly see in the \u003cstrong\u003eHVAC industry in Montreal and Greater Montreal\u003c\/strong\u003e: comparing two heat pumps solely because their nominal capacity is 12,000 BTU, even though their modulation, winter efficiency, certification, and low-temperature performance may be very different.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -20 °C: what this figure really means\u003c\/h3\u003e\n\u003cp\u003eThe YORK catalogue indicates a \u003cstrong\u003eheating operating range down to -20 °C\u003c\/strong\u003e for this P Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e It is essential to understand that this is a \u003cstrong\u003eminimum operating temperature\u003c\/strong\u003e, not a guarantee that the unit will still provide its nominal 13,000 BTU when the outdoor temperature reaches -20 °C.\u003c\/p\u003e\n\u003cp\u003eThe nominal heating capacity of 13,000 BTU is determined under much milder standardized conditions. As with all heat pumps, available capacity and efficiency vary with outdoor temperature.\u003c\/p\u003e\n\u003cp\u003eIn the climate of \u003cstrong\u003eMontréal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/strong\u003e, this distinction directly affects sizing. A heat pump capable of continuing to operate at -20 °C is not automatically sized to replace all of a home’s heating on its own during a period of intense cold.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore consider the building as a whole: insulation, windows, orientation, zone area, ceiling height, air infiltration, and the presence of supplemental heating.\u003c\/p\u003e\n\u003ch3\u003eMore comfortable Inverter modulation than start-stop operation\u003c\/h3\u003e\n\u003cp\u003eThe variable-speed compressor is one of the key elements of this P Series. Rather than operating only at full capacity and then shutting off, the unit can adjust its output to match demand.\u003c\/p\u003e\n\u003cp\u003eIn this 12,000 BTU configuration, YORK indicates modulation in cooling mode of approximately \u003cstrong\u003e3,753 to 12,500 BTU\/h\u003c\/strong\u003e and in heating mode of approximately \u003cstrong\u003e3,924 to 14,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a properly sized room, this modulation helps limit short cycles. The unit can maintain a stable temperature for longer with an airflow suited to the actual load.\u003c\/p\u003e\n\u003cp\u003eThis is particularly relevant in a condo or open area where an oversized system could cool the room very quickly, shut off, and then restart frequently. The comfort of a \u003cstrong\u003ewall-mounted heat pump\u003c\/strong\u003e therefore depends as much on proper sizing as on its maximum capacity.\u003c\/p\u003e\n\u003ch3\u003eAutomatic vertical and horizontal louvers: a real advantage for air distribution\u003c\/h3\u003e\n\u003cp\u003eThe P Series offers more comprehensive louver control than several simpler wall-mounted units. The YORK feature chart lists \u003cstrong\u003e3D Auto Swing\u003c\/strong\u003e for the P Series, meaning automatic vertical and horizontal oscillation, in addition to up-and-down, left-to-right movements and fixed-angle positions. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis helps distribute the air more evenly in an open area instead of concentrating the airflow directly in front of the evaporator.\u003c\/p\u003e\n\u003cp\u003eFor an AirGreen installation, the indoor unit is positioned specifically with this airflow in mind. Whenever possible, we avoid placing the unit where its air stream will be immediately blocked by a tall cabinet, beam, cross wall, or large piece of furniture.\u003c\/p\u003e\n\u003cp\u003eIn cooling mode, properly directed airflow helps cool air move throughout the room. In heating mode, louver positioning affects how warm air reaches the occupied area rather than remaining near the ceiling.\u003c\/p\u003e\n\u003ch3\u003eAirflow and sound level\u003c\/h3\u003e\n\u003cp\u003eThe YORK catalog lists four airflow levels for the DHP12NWB21S, ranging from approximately \u003cstrong\u003e194 to 400 CFM\u003c\/strong\u003e. Indoor sound pressure levels drop to approximately \u003cstrong\u003e29 dB(A)\u003c\/strong\u003e at low speed and rise to approximately 43 dB(A) at the highest setting. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis makes this heat pump an interesting option for a living room, office, or bedroom when the 12,000 BTU capacity truly matches the room's load.\u003c\/p\u003e\n\u003cp\u003eMaximum airflow is still important, however. A quiet heat pump installed in the wrong location can become less comfortable if it has to constantly operate at high speed to push air toward a distant part of the room. Location selection is therefore an integral part of perceived acoustic performance.\u003c\/p\u003e\n\u003ch3\u003eOptional Wi-Fi and YORK remote control\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDRCPX\u003c\/strong\u003e wireless remote is associated with the P and X Series in YORK documentation. For phone control, YORK indicates that the P and X Series can use the \u003cstrong\u003eEWPE Smart App\u003c\/strong\u003e with the \u003cstrong\u003eCS532AH\u003c\/strong\u003e adapter. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWi-Fi is therefore not a feature we automatically consider integrated into this generation of the P Series. It is an \u003cstrong\u003eoption requiring the appropriate adapter\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor an older installation where the owner wants to add remote control, exact compatibility must also be confirmed before ordering the accessory. The indoor unit reference is more reliable than its exterior appearance for choosing the right controller.\u003c\/p\u003e\n\u003ch2\u003eInstallation of the YORK P Series in Montreal, Laval, Longueuil, the North Shore, and the South Shore: the details that make the difference\u003c\/h2\u003e\n\u003ch3\u003eThe 12,000 BTU capacity should not be chosen solely based on floor area\u003c\/h3\u003e\n\u003cp\u003eA rough square-footage rule can be useful for an initial discussion, but it is not enough to properly select a \u003cstrong\u003e12,000 BTU heat pump\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eTwo rooms of identical dimensions can have very different heating and cooling loads. A very open, heavily windowed space facing due south in \u003cstrong\u003eLongueuil\u003c\/strong\u003e may require a different approach from a room of the same size located in the center of a building in \u003cstrong\u003eMontreal\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWe examine the insulation, windows, sun exposure, number of exterior walls, floor level, ceiling height, and connections between rooms.\u003c\/p\u003e\n\u003cp\u003eAn undersized unit will often operate at high capacity. An oversized unit may reach the requested temperature too quickly without providing the same control of humidity and temperature throughout the area.\u003c\/p\u003e\n\u003ch3\u003eA scenario in which this configuration may be suitable\u003c\/h3\u003e\n\u003cp\u003eConsider an open-concept area that already has a functioning electric heating system but becomes uncomfortably hot in the summer. The homeowner wants to add air conditioning while also benefiting from heat pump heating during a significant part of the winter.\u003c\/p\u003e\n\u003cp\u003eIn this type of situation, we first check whether \u003cstrong\u003e12,000 BTU\u003c\/strong\u003e match the actual load. We then determine a wall that allows air to circulate through as much of the space as possible. Outdoors, we look for an accessible location for maintenance while respecting the required clearances.\u003c\/p\u003e\n\u003cp\u003eThe result depends much less on the brand shown on the front than on the quality of the sizing, refrigeration line routing, drainage, evacuation, and commissioning.\u003c\/p\u003e\n\u003ch3\u003eA proper installation involves much more than two units mounted on the wall\u003c\/h3\u003e\n\u003cp\u003eFor a typical YORK wall-mounted heat pump installation, our work includes several technical steps:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity validation\u003c\/strong\u003e based on the building and the area to be conditioned.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelection of indoor and outdoor locations\u003c\/strong\u003e, taking into account air distribution, noise, future maintenance, and drainage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation of 1\/4 in – 3\/8 in piping\u003c\/strong\u003e, in accordance with the connections for this combination.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e208\/230 V electrical connection\u003c\/strong\u003e with protection suited to the manufacturer's MCA\/MOCP requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEvacuation and vacuuming of the refrigeration circuit\u003c\/strong\u003e, followed by leak testing and commissioning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeating and cooling test\u003c\/strong\u003e, inspection of the drainage, louvers, and fan speeds, and explanation of the controls to the homeowner.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eFor this model, the manufacturer specifies an \u003cstrong\u003eMCA of 9 A and a maximum protection of 15 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e This does not mean that an installer can simply rely on an existing circuit because it already has a 15 A circuit breaker. The cable type, circuit, outdoor disconnect, and compliance of the electrical installation must also be verified.\u003c\/p\u003e\n\u003ch3\u003eThe 1\/4 in. – 3\/8 in. piping must be respected\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHP12NWB21S \/ DHP12CSB21S\u003c\/strong\u003e combination uses a \u003cstrong\u003e1\/4 in.\u003c\/strong\u003e liquid line and a \u003cstrong\u003e3\/8 in.\u003c\/strong\u003e gas line. YORK indicates a maximum total length of approximately \u003cstrong\u003e65 ft\u003c\/strong\u003e and a maximum height difference of approximately \u003cstrong\u003e33 ft\u003c\/strong\u003e for this configuration. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese details become particularly important when a heat pump is replacing an older unit.\u003c\/p\u003e\n\u003cp\u003eAutomatically reusing existing lines without checking their diameter, condition, previous refrigerant, and the new equipment’s requirements is poor practice. Even if two systems are both rated at 12,000 BTU, their connections are not necessarily identical.\u003c\/p\u003e\n\u003ch3\u003eDrainage remains a frequent source of preventable problems\u003c\/h3\u003e\n\u003cp\u003eA wall-mounted heat pump removes moisture from the air in cooling mode. The water must be properly discharged through the condensate drain.\u003c\/p\u003e\n\u003cp\u003eA drain that is improperly sloped, crushed, or incorrectly connected can eventually cause indoor leaks. Filter and evaporator maintenance also play a role: a heavily soiled unit can reduce airflow and interfere with the system’s normal operation.\u003c\/p\u003e\n\u003cp\u003eFor an older unit like this P Series generation, preventive maintenance is even more important. We check, among other things, the cleanliness of the evaporator, the blower wheel, the drain pan, the outdoor coil, and visible connections.\u003c\/p\u003e\n\u003ch3\u003eWarranty: verify equipment registration\u003c\/h3\u003e\n\u003cp\u003eYORK documentation for this generation mentions a standard warranty of \u003cstrong\u003e7 years on the compressor and 5 years on parts\u003c\/strong\u003e, with the possibility of extending it to \u003cstrong\u003e10 years on the compressor and 10 years on parts\u003c\/strong\u003e after eligible registration of a residential installation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen listing for this configuration, for its part, shows \u003cstrong\u003e10-10-0 years\u003c\/strong\u003e: 10 years for the compressor, 10 years for parts, and no manufacturer’s labor warranty included.\u003c\/p\u003e\n\u003cp\u003eFor a unit from existing stock, we recommend always confirming the conditions applicable to the \u003cstrong\u003especific serial number\u003c\/strong\u003e, the installation date, and the registration requirements. AirGreen can also explain the additional warranty options available at the time of quotation.\u003c\/p\u003e\n\u003ch3\u003eLogisVert: this reference is not a current eligible ENERGY STAR model\u003c\/h3\u003e\n\u003cp\u003eThe specifications for this YORK P Series indicate \u003cstrong\u003eENERGY STAR: No\u003c\/strong\u003e and \u003cstrong\u003eENERGY STAR – Cold Climate: No\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis point has a direct consequence for an installation carried out today. Hydro-Québec specifies that heat pumps installed \u003cstrong\u003eas of November 26, 2025, must be ENERGY STAR certified to be eligible for the LogisVert program\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe YORK \u003cstrong\u003eDHP12NWB21S \/ DHP12CSB21S\u003c\/strong\u003e should therefore not be presented as a heat pump currently eligible for the LogisVert subsidy simply because it offers 12,000 BTU or because it can operate down to -20 °C.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner whose priority is to benefit from a \u003cstrong\u003eHydro-Québec subsidy\u003c\/strong\u003e, we instead compare this option with current ENERGY STAR-certified heat pumps and, where relevant, \u003cstrong\u003eENERGY STAR – Cold Climate\u003c\/strong\u003e models. Hydro-Québec indicates, in particular, that assistance is linked to eligible cold-climate heat pumps based on their heating capacity at -8 °C. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eFor which project does this YORK P Series remain an interesting option?\u003c\/h3\u003e\n\u003cp\u003eThis configuration retains practical features: Inverter technology, 12,000 BTU cooling capacity, heating, modulation, a remote control, automatic two-way louver control, and the option to add a compatible Wi-Fi control.\u003c\/p\u003e\n\u003cp\u003eIt may be of interest when a homeowner is specifically looking for this model, when it is suitable for a compatible replacement project, or when a unit in stock is available on attractive terms.\u003c\/p\u003e\n\u003cp\u003eHowever, for a \u003cstrong\u003enew heat pump installation in Montreal, Laval, Longueuil, on the North Shore or the South Shore\u003c\/strong\u003e, we recommend comparing its final cost with that of newer models offering ENERGY STAR certification, better cold-weather performance, and potential eligibility for financial assistance programs.\u003c\/p\u003e\n\u003cp\u003eThe purchase price alone does not determine the best choice. A less expensive heat pump that is not eligible for a subsidy may end up costing more than a higher-end model once the net cost is calculated.\u003c\/p\u003e\n\u003ch3\u003eFrequently asked questions about the YORK DHP12NWB21S \/ DHP12CSB21S\u003c\/h3\u003e\n\u003ch4\u003eDoes the 12,000 BTU YORK P Series really provide heating at -20 °C?\u003c\/h4\u003e\n\u003cp\u003eThe manufacturer indicates a heating operating range down to approximately \u003cstrong\u003e-20 °C\u003c\/strong\u003e. This temperature represents a published operating limit, not a guaranteed capacity of 13,000 BTU at -20 °C. Available capacity generally decreases as the outdoor temperature drops.\u003c\/p\u003e\n\u003ch4\u003eIs this heat pump really 18 SEER?\u003c\/h4\u003e\n\u003cp\u003eThe P Series is marketed as a range of \u003cstrong\u003eup to 18 SEER\u003c\/strong\u003e, but the specific combination \u003cstrong\u003eDHP12NWB21S + DHP12CSB21S, AHRI 8578541, is certified at 16 SEER\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eAre the horizontal and vertical louvers automatic?\u003c\/h4\u003e\n\u003cp\u003eYes. YORK's function table lists \u003cstrong\u003e3D Auto Swing\u003c\/strong\u003e for the P Series, including automatic vertical and horizontal swing. It also lists up-and-down, left-and-right, and fixed-angle movement functions. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eIs Wi-Fi included?\u003c\/h4\u003e\n\u003cp\u003eNo. For this generation, YORK lists Wi-Fi as an option. The \u003cstrong\u003eCS532AH\u003c\/strong\u003e adapter is required for the P Series to use the compatible phone-control function. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eWhat piping should be used?\u003c\/h4\u003e\n\u003cp\u003eFor the 12,000 BTU 208\/230 V model presented here, the listed connections are \u003cstrong\u003e1\/4 in. for liquid and 3\/8 in. for gas\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eIs this heat pump eligible for LogisVert?\u003c\/h4\u003e\n\u003cp\u003eFor a current installation, not according to the information available for this combination. It is identified as non-ENERGY STAR, while Hydro-Québec requires ENERGY STAR certification for heat pumps installed since November 26, 2025, to qualify for the corresponding LogisVert measure. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eHave your heat pump installed by AirGreen\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we install and service HVAC systems throughout Greater Montreal, including \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, and the North Shore\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOur work does not simply consist of selecting a number of BTUs. We verify the required capacity, electrical supply, piping, drainage, clearances, airflow, and system compatibility with the homeowner's objectives.\u003c\/p\u003e\n\u003cp\u003eFor this YORK P Series model, as with a newer-generation wall-mounted heat pump, we can also compare the \u003cstrong\u003eactual cost after rebates\u003c\/strong\u003e, winter performance, and warranties so that the choice remains suitable for many years after installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen to obtain a quote, check the availability of the YORK DHP12NWB21S \/ DHP12CSB21S, or compare this unit with the ENERGY STAR wall-mounted heat pumps currently available in Montreal, Laval, Longueuil, on the North Shore and the South Shore.\u003c\/strong\u003e\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120363843876,"sku":"DHP12CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_MURALE_YORK_SERIE_P_12000_BTU_220V_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_d8b32334-1cd4-4ae1-ae98-cffe2a151c1a.png?v=1789426116"},{"product_id":"thermopompe-murale-york-serie-p-18-seer-18000-btu","title":"YORK P Series Wall-Mounted Heat Pump 18 SEER | 18000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eAn 18,000 BTU YORK wall-mounted heat pump to evaluate using the right technical data\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e18,000 BTU YORK P Series wall-mounted heat pump\u003c\/strong\u003e is intended for homeowners seeking a ductless system capable of providing both cooling and heating for a significant area of the home. In \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/strong\u003e, this type of unit may be suitable for an open-concept floor, a large living room, an apartment, an office, or certain light commercial spaces, provided that it is properly sized for the building's actual load.\u003c\/p\u003e\n\u003cp\u003eThe system presented here combines the \u003cstrong\u003eDHP18NWB21S\u003c\/strong\u003e indoor unit with the \u003cstrong\u003eDHP18CSB21S\u003c\/strong\u003e outdoor unit. YORK documentation from 2020 confirms that this is indeed the 18,000 BTU P Series heat pump system powered by 208\/230 V. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOne point should be clarified from the outset. The name \u003cstrong\u003e“P Series 18 SEER”\u003c\/strong\u003e refers to a YORK family advertised as offering up to 18 SEER. For the specific \u003cstrong\u003eDHP18NWB21S \/ DHP18CSB21S\u003c\/strong\u003e combination, the official brochure indicates a rating of \u003cstrong\u003e16 SEER\u003c\/strong\u003e, not 18 SEER, as well as an \u003cstrong\u003eEER of 9\u003c\/strong\u003e and an \u003cstrong\u003eHSPF of 9\u003c\/strong\u003e. This distinction is important when comparing this heat pump with newer units using the new SEER2 and HSPF2 ratings. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we prefer to present this distinction clearly. A useful HVAC comparison must be based on the exact model's data, not just the series' commercial name.\u003c\/p\u003e\n\u003ch3\u003eTechnical specifications for the DHP18CSB21S \/ DHP18NWB21S model\u003c\/h3\u003e\n\u003cp\u003eFor the 18,000 BTU model, YORK documentation provides sufficiently detailed data to properly plan a \u003cstrong\u003ewall-mounted heat pump installation\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eRated cooling capacity: 18,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling capacity range: 7,165 to 20,000 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 capacity range: 7,336 to 23,498 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER: 16 for this specific model\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER: 9\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF: 9\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 16 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOCP \/ maximum overcurrent protection: 25 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-410A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling operating range: -18 °C to 46 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating operating range: -20 °C to 24 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant piping: 1\/4 in. liquid and 1\/2 in. gas\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum piping length: 82 ft, or approximately 25 m\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum elevation difference: 33 ft, or approximately 10 m\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor airflow: 471 \/ 403 \/ 341 \/ 282 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor sound pressure: 46 \/ 42 \/ 39 \/ 35 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound pressure: 56 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit dimensions: 38 × 12 × 9 in.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit dimensions: 38 × 28 × 16 in.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAirflow, sound, dimensions, piping, and operating range values are all specified in the YORK technical table for the 9,000, 12,000, and 18,000 BTU models in the P Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eHeating down to -20 °C: what this data really means\u003c\/h3\u003e\n\u003cp\u003eThe statement \u003cstrong\u003eheating at -20 °C\u003c\/strong\u003e must be interpreted correctly. YORK indicates that the DHP18CSB21S can operate in heating mode down to an outdoor temperature of \u003cstrong\u003e-20 °C\u003c\/strong\u003e. This does not mean that the unit necessarily produces its nominal 19,000 BTU\/h when the outdoor temperature reaches -20 °C.\u003c\/p\u003e\n\u003cp\u003eThe brochure provides a nominal heating capacity of 19,000 BTU\/h and a modulating range of 7,336 to 23,498 BTU\/h, but it does not provide, in this table, the certified capacities at \u003cstrong\u003e-8 °C, -15 °C, or -20 °C\u003c\/strong\u003e. We therefore avoid inventing a low-temperature output that the manufacturer has not published in this documentation.\u003c\/p\u003e\n\u003cp\u003eThis distinction is particularly important in Quebec. In \u003cstrong\u003eMontreal, Laval, Longueuil, Boucherville, Terrebonne, Repentigny, or on the South Shore\u003c\/strong\u003e, a heat pump is not selected solely according to its nominal cooling capacity. We must also consider the building’s heating requirements, insulation, exposure to wind, heat loss through the windows, the area actually served, and the presence of supplemental heating.\u003c\/p\u003e\n\u003ch3\u003eInteresting modulation for everyday comfort\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eInverter\u003c\/strong\u003e technology compressor allows the unit to operate without relying solely on an on-off logic. Capacity can vary with demand, which helps maintain a more stable temperature and limits repeated cycles when the thermal load is low.\u003c\/p\u003e\n\u003cp\u003eFor the homeowner, this modulation is most noticeable during less demanding periods. A September day in Montreal does not require the same output as a heat wave in July. Similarly, maintaining a room at temperature in October does not require the same capacity as an evening in January.\u003c\/p\u003e\n\u003cp\u003eIt is precisely during these transitional periods that modulation can contribute to comfort. The goal of proper sizing is not to systematically choose the appliance displaying the highest BTU rating, but to select a capacity compatible with the zone’s actual thermal behavior.\u003c\/p\u003e\n\u003ch3\u003eAutomatic louvers in both directions\u003c\/h3\u003e\n\u003cp\u003eThe P Series has a particularly interesting feature for a wall-mounted unit: the YORK table lists \u003cstrong\u003e3D Auto Swing\u003c\/strong\u003e, meaning automatic vertical and horizontal oscillation. It also confirms the up-and-down and left-to-right swing functions, as well as fixed-angle positioning. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the model sold by AirGreen, we therefore indicate:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVertical louvers: automatic\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eHorizontal louvers: automatic\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis feature is more important than it may seem. In a large rectangular living room, an open-concept area, or a space with an adjacent hallway, the direction of the airflow directly influences temperature uniformity. An 18,000 BTU unit installed in the wrong location may deliver less satisfactory results than a properly positioned and oriented appliance.\u003c\/p\u003e\n\u003cp\u003eDuring our \u003cstrong\u003eHVAC installations in Montreal, Laval, Longueuil, on the North Shore and the South Shore\u003c\/strong\u003e, we therefore examine not only the available wall space, but also the path of the air. Whenever possible, we avoid directing the airflow straight at a sofa, bed, or area where occupants spend extended periods.\u003c\/p\u003e\n\u003ch3\u003eFour genuinely documented airflow levels\u003c\/h3\u003e\n\u003cp\u003eFor the DHP18NWB21S indoor unit, YORK specifies airflow rates of \u003cstrong\u003e471, 403, 341, and 282 CFM\u003c\/strong\u003e depending on the selected speed.\u003c\/p\u003e\n\u003cp\u003eThis variation makes it possible to prioritize either stronger airflow or quieter operation. The associated sound levels range from \u003cstrong\u003e46 dB(A) at high speed to 35 dB(A) at low speed\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis is useful information for a bedroom, but even more so for a living room or workspace. An appliance may have an appealing minimum rating while becoming noticeably more audible when it has to move a large volume of air. We therefore prefer to look at the entire sound range rather than a single promotional value.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit is rated at \u003cstrong\u003e56 dB(A)\u003c\/strong\u003e. Its location should therefore be chosen carefully, particularly in neighborhoods where houses, condos, or plexes are close together. A poor location can transmit more noise toward a window, balcony, terrace, or neighboring property.\u003c\/p\u003e\n\u003ch3\u003eOptional Wi-Fi and standard wireless remote control\u003c\/h3\u003e\n\u003cp\u003eThe P Series includes a \u003cstrong\u003eDRCPX wireless remote control\u003c\/strong\u003e. For control via smartphone or tablet, Wi-Fi is not built into this model as standard: YORK indicates that the \u003cstrong\u003eCS532AH adapter\u003c\/strong\u003e is required.\u003c\/p\u003e\n\u003cp\u003eThe controller documentation also specifies that the EWPE Smart app is compatible with the P, X, and Z Series, with a CS532AH adapter required for the P and X Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTherefore, two elements must be clearly distinguished:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInfrared remote control: included.\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eWi-Fi control: optional with the appropriate accessory.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is the kind of detail we verify before promising a connected feature to a customer. Two wall-mounted units that look very similar may have different electronic configurations.\u003c\/p\u003e\n\u003ch2\u003eInstallation, performance, and selection of this YORK P Series in Greater Montreal\u003c\/h2\u003e\n\u003ch3\u003e1\/4 in. - 1\/2 in. piping that must be followed\u003c\/h3\u003e\n\u003cp\u003eThe DHP18NWB21S \/ DHP18CSB21S combination requires a liquid line of \u003cstrong\u003e1\/4 po\u003c\/strong\u003e and a gas line of \u003cstrong\u003e1\/2 po\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis information is particularly important when replacing an old heat pump. It may be tempting to automatically reuse the existing lines because they already pass through a finished wall. At AirGreen, we first check their diameter, condition, length, accessibility, and compatibility with the system.\u003c\/p\u003e\n\u003cp\u003eA common example is a homeowner who wants to replace an old unit without redoing the exterior trim. If the existing piping is the wrong diameter or has contamination, a restriction, or a questionable connection, keeping that piping solely to reduce the work can compromise the operation of the new appliance.\u003c\/p\u003e\n\u003cp\u003eFor this YORK unit, the brochure allows up to \u003cstrong\u003e82 feet of total length\u003c\/strong\u003e and \u003cstrong\u003e33 feet of height difference\u003c\/strong\u003e. These limits provide some flexibility for multilevel homes, but they do not replace proper route planning.\u003c\/p\u003e\n\u003ch3\u003eA 208\/230 V power supply with an MCA of 16 A\u003c\/h3\u003e\n\u003cp\u003eThe 18,000 BTU P Series operates on \u003cstrong\u003e208\/230 V single-phase\u003c\/strong\u003e power. The documentation specifies a \u003cstrong\u003eminimum circuit ampacity of 16 A\u003c\/strong\u003e and \u003cstrong\u003emaximum overcurrent protection of 25 A\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe 25 A MOCP value must not be interpreted as an invitation to modify the circuit breaker yourself. The circuit must be verified based on the installation, wiring, appliance requirements, and applicable electrical standards in Quebec.\u003c\/p\u003e\n\u003cp\u003eIn a replacement project in \u003cstrong\u003eMontreal or Longueuil\u003c\/strong\u003e, for example, the presence of an existing 240 V circuit does not automatically guarantee that it is suitable for the new heat pump. We check the electrical specifications before installation to avoid improvised modifications on the day of the work.\u003c\/p\u003e\n\u003ch3\u003eDimensions to check before choosing the wall\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately \u003cstrong\u003e38 in wide, 12 in deep, and 9 in high\u003c\/strong\u003e. This 18,000 BTU size requires more width than a small 9,000 or 12,000 BTU wall-mounted unit.\u003c\/p\u003e\n\u003cp\u003eWe must also maintain the necessary clearances around the appliance so that air can be properly drawn in and distributed and the unit remains accessible for \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures approximately \u003cstrong\u003e38 × 28 × 16 in\u003c\/strong\u003e. Its location must account for airflow, snow, drainage during defrosting, service access, and the regulations applicable to the location.\u003c\/p\u003e\n\u003cp\u003eOn the \u003cstrong\u003eSouth Shore and North Shore\u003c\/strong\u003e, installations in single-family homes sometimes offer more flexibility. In certain Montreal boroughs or in condominiums, space constraints, balconies, and administrative requirements may require more precise planning.\u003c\/p\u003e\n\u003ch3\u003eR-410A: a factor to consider for this model\u003c\/h3\u003e\n\u003cp\u003eThis YORK P Series uses \u003cstrong\u003eR-410A\u003c\/strong\u003e. This is an important characteristic to know because it is a platform from the YORK product line documented in 2020.\u003c\/p\u003e\n\u003cp\u003eFor future maintenance, the technician must know exactly which refrigerant is used and follow the procedures specified for this appliance. The refrigerant type must never be determined based on a heat pump’s exterior appearance: we always check the nameplate and model documentation.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR, cold climate, and rebates\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing for this heat pump states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR: No\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eENERGY STAR Cold Climate: No\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe page does not list any \u003cstrong\u003eLogisVert provincial rebate\u003c\/strong\u003e amount for this model in its November 26, 2025 update.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner whose top priority is obtaining the best financial assistance available, this information may steer the comparison toward other ductless heat pumps. The purchase price of an appliance should not be evaluated separately from its potential rebate, low-temperature performance, and the building’s actual needs.\u003c\/p\u003e\n\u003ch3\u003eAn essential clarification about SEER, SEER2, and the “18 SEER” designation\u003c\/h3\u003e\n\u003cp\u003eThe November 2020 YORK documentation classifies this family under \u003cstrong\u003e“P Series - Up to 18 SEER”\u003c\/strong\u003e. It uses the SEER, EER, and HSPF ratings according to the certification methods for this generation of equipment.\u003c\/p\u003e\n\u003cp\u003eFor the 18,000 BTU DHP18CSB21S model, the published data are \u003cstrong\u003e16 SEER, 9 EER, and 9 HSPF\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eTherefore, these figures should not be arbitrarily converted to \u003cstrong\u003eSEER2, EER2, or HSPF2\u003c\/strong\u003e. The testing methods are not identical, and a comparison with a recent heat pump should use data certified under the same standard.\u003c\/p\u003e\n\u003cp\u003eFor homeowners comparing several systems on our website, this is an important technical detail: a figure displayed in a column is not enough to compare two generations of heat pumps.\u003c\/p\u003e\n\u003ch3\u003eWarranty: why system registration matters\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates a warranty of \u003cstrong\u003e10 years on the compressor, 10 years on parts, and 0 years on labour\u003c\/strong\u003e, with the possibility of additional warranty coverage depending on the applicable conditions.\u003c\/p\u003e\n\u003cp\u003eThe original YORK brochure provides a useful clarification: the advertised standard warranty was \u003cstrong\u003e7 years on the compressor and 5 years on parts\u003c\/strong\u003e, while registering the system allowed eligible residential applications to receive \u003cstrong\u003e10 years on the compressor and 10 years on parts\u003c\/strong\u003e. Ten years of labour coverage was presented separately as an option requiring the purchase of additional protection. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThat is why we recommend keeping the invoice, model and serial numbers, and any registration confirmation. Several years after installation, these documents can make a significant difference when submitting a warranty claim.\u003c\/p\u003e\n\u003ch3\u003eWhat type of project might 18,000 BTU be suitable for?\u003c\/h3\u003e\n\u003cp\u003eAn \u003cstrong\u003e18,000 BTU\u003c\/strong\u003e unit is not automatically intended for a fixed area. Two rooms with the same square footage can have very different heating and cooling loads.\u003c\/p\u003e\n\u003cp\u003eIn our assessments in \u003cstrong\u003eMontréal, Laval, Longueuil, the North Shore, the South Shore, and Montérégie\u003c\/strong\u003e, we consider factors such as the room’s layout, the number and size of the windows, sun exposure, insulation level, ceiling height, the floor where the room is located, and airflow to adjacent areas.\u003c\/p\u003e\n\u003cp\u003eA large open ground floor can sometimes allow a wall-mounted unit to distribute air effectively across several connected areas. Conversely, installing an 18,000 BTU heat pump in a hallway and expecting it to cool several bedrooms whose doors remain closed often results in uneven distribution.\u003c\/p\u003e\n\u003cp\u003ePositioning is therefore just as important as the number of BTUs.\u003c\/p\u003e\n\u003ch3\u003eMistakes we aim to avoid during an installation\u003c\/h3\u003e\n\u003cp\u003eA proper \u003cstrong\u003ewall-mounted heat pump installation\u003c\/strong\u003e involves more than simply mounting an indoor unit and an outdoor unit. Several details affect the long-term result.\u003c\/p\u003e\n\u003cp\u003eWe pay particular attention to the condensate drain route, slope, refrigerant connections, defrost water drainage, vibrations, outdoor support, line routing, and indoor unit positioning.\u003c\/p\u003e\n\u003cp\u003eAnother often underestimated factor is accessibility. An indoor unit installed too close to the ceiling or wedged against a side wall can make filter cleaning and \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e more difficult. A visually discreet installation should not sacrifice the access required for servicing.\u003c\/p\u003e\n\u003ch3\u003eWhy have this YORK installed and maintained by AirGreen\u003c\/h3\u003e\n\u003cp\u003eAt AirGreen, our work does not stop at choosing a brand or a capacity displayed on a box. We analyze the entire installation to ensure that the heat pump is truly suited to the building.\u003c\/p\u003e\n\u003cp\u003eFor the YORK P Series 18,000 BTU, this means checking the \u003cstrong\u003esizing\u003c\/strong\u003e, the \u003cstrong\u003e1\/4 in. - 1\/2 in.\u003c\/strong\u003e piping, the \u003cstrong\u003e208\/230 V\u003c\/strong\u003e power supply, condenser placement, condensate drainage, air distribution, and warranty conditions.\u003c\/p\u003e\n\u003cp\u003eWe serve \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, the South Shore, and the greater metropolitan area\u003c\/strong\u003e for the installation, replacement, maintenance, and servicing of residential and commercial HVAC systems.\u003c\/p\u003e\n\u003ch3\u003eGet a quote for your YORK heat pump\u003c\/h3\u003e\n\u003cp\u003eTo find out whether this \u003cstrong\u003eYORK P Series 18,000 BTU wall-mounted heat pump\u003c\/strong\u003e is suitable for your house, condo, apartment, or business, contact AirGreen directly.\u003c\/p\u003e\n\u003cp\u003eWe can assess the required capacity, installation possibilities, piping route, electrical supply, and other available heat pump options in order to propose a configuration suited to your project.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e514-316-2973\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e\u003ca class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003esales@airgreen.ca\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120363909412,"sku":"DHP18CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_MURALE_YORK_SERIE_P_18000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_d22c19d7-db03-4463-a978-b79be9e68d60.png?v=1789426116"},{"product_id":"thermopompe-murale-york-serie-p-18-seer-24000-btu","title":"YORK P Series Wall-Mounted Heat Pump 18 SEER | 24000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 24,000 BTU wall-mounted heat pump that deserves to be assessed beyond the number on the label\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eWhen a homeowner is looking for a \u003cstrong\u003e24,000 BTU wall-mounted heat pump in Montreal, Laval, Longueuil, on the North Shore or South Shore\u003c\/strong\u003e, the stated capacity is often the first criterion considered. However, to determine whether a unit is truly suitable for a large open-concept area, an entire floor, a commercial space or a difficult-to-cool dwelling, we need to look much further: capacity modulation, airflow, sound level, minimum heating temperature, piping, electrical supply and the location of both units.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eYORK P Series\u003c\/strong\u003e, in the configuration of interest here, pairs the \u003cstrong\u003eDHP24NWB21S\u003c\/strong\u003e indoor unit with the \u003cstrong\u003eDHP24CSB21S\u003c\/strong\u003e outdoor unit. YORK officially classifies this combination in its \u003cstrong\u003e24K BTU\/h, 208\/230 V\u003c\/strong\u003e family, among the P Series single-zone wall-mounted heat pump systems. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is an \u003cstrong\u003eInverter\u003c\/strong\u003e-technology heat pump using \u003cstrong\u003eR-410A\u003c\/strong\u003e, designed to provide cooling and heating down to an advertised outdoor temperature of \u003cstrong\u003e-20 °C\u003c\/strong\u003e. It is therefore not simply a wall-mounted air conditioner with a heating function added: it is a reversible system capable of modulating its operation according to the building’s actual load.\u003c\/p\u003e\n\u003ch3\u003eYORK P Series 24K: model numbers to verify before any installation\u003c\/h3\u003e\n\u003cp\u003eFor this heat pump, the correct combination is:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: DHP24NWB21S\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: DHP24CSB21S\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCommercial class: 24,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-410A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI listed on the AirGreen product sheet: 8578549\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi: optional\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis distinction between the indoor and outdoor units is important. On a \u003cstrong\u003ewall-mounted heat pump replacement\u003c\/strong\u003e project, we never validate an installation solely based on the YORK logo or the appearance of the wall-mounted unit. Both model numbers must be confirmed, particularly when an existing appliance is being partially reused or when verifying an older installation.\u003c\/p\u003e\n\u003ch3\u003e“18 SEER” does not mean that every P Series capacity achieves exactly 18 SEER\u003c\/h3\u003e\n\u003cp\u003eHere is a particularly important nuance for this product listing.\u003c\/p\u003e\n\u003cp\u003eYORK presents this range as the \u003cstrong\u003eP Series up to 18 SEER\u003c\/strong\u003e. However, in the official technical table of the 2020 catalog, the \u003cstrong\u003eDHP24NWB21S \/ DHP24CSB21S\u003c\/strong\u003e combination is listed with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSEER: 16\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER: 9.75\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF: 9\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eRated cooling capacity: \u003cstrong\u003e22,000 BTU\/h\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003enominal heating capacity: \u003cstrong\u003e23,000 BTU\/h\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe table also indicates a cooling modulation range of \u003cstrong\u003e8,630 to 23,200 BTU\/h\u003c\/strong\u003e, and a heating range of \u003cstrong\u003e8,650 to 26,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThat is why we always distinguish between a \u003cstrong\u003e24,000 BTU commercial category\u003c\/strong\u003e and the nominal capacity measured under standardized conditions. A unit sold as “24K” is not necessarily rated at exactly 24,000 BTU\/h under all certification conditions.\u003c\/p\u003e\n\u003cp\u003eIt is also important to avoid mixing different generations of standards. This 2020 YORK catalogue provides \u003cstrong\u003eSEER, EER and HSPF\u003c\/strong\u003e ratings, not the newer \u003cstrong\u003eSEER2, EER2 and HSPF2\u003c\/strong\u003e ratings. These values should not be automatically converted or renamed. To compare this YORK with a recent heat pump using a SEER2 rating, we therefore recommend comparing the technical specifications according to the same standard rather than placing the figures side by side without context.\u003c\/p\u003e\n\u003ch3\u003eUseful modulation in large spaces\u003c\/h3\u003e\n\u003cp\u003eVariable capacity is one of the practical advantages of Inverter technology.\u003c\/p\u003e\n\u003cp\u003eIn cooling mode, the YORK can go down to around \u003cstrong\u003e8,630 BTU\/h\u003c\/strong\u003e instead of constantly operating at full capacity. In heating mode, it can modulate from approximately \u003cstrong\u003e8,650 to 26,000 BTU\/h\u003c\/strong\u003e under the conditions specified in YORK’s documentation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a homeowner, this may mean longer, more consistent cycles, particularly when the outdoor temperature is moderate and the building does not require the unit’s full capacity.\u003c\/p\u003e\n\u003cp\u003eOn our \u003cstrong\u003eductless mini-split heat pump projects in Greater Montreal\u003c\/strong\u003e, this is precisely the behavior we look for when the unit serves an open-concept area: a dining room connected to the living room, an open kitchen, a large basement, or a business where the heat load changes throughout the day.\u003c\/p\u003e\n\u003cp\u003eHowever, achieving the right result depends on proper sizing. Automatically installing a 24,000 BTU unit simply because the room “seems large” is a mistake. The floor area, insulation, windows, solar exposure, ceiling height, and airflow between rooms must all be considered.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -20 °C: what this figure really means\u003c\/h3\u003e\n\u003cp\u003eYORK gives the \u003cstrong\u003eDHP24CSB21S\u003c\/strong\u003e a heating operating range of \u003cstrong\u003e-4 °F to 75 °F\u003c\/strong\u003e, or approximately \u003cstrong\u003e-20 °C to 24 °C\u003c\/strong\u003e. In cooling mode, its published range is \u003cstrong\u003e-18 °C to 46 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e-20 °C\u003c\/strong\u003e must be interpreted correctly.\u003c\/p\u003e\n\u003cp\u003eThis represents a published operating limit, not a promise that the unit will always produce exactly its rated capacity of 23,000 BTU\/h at -20 °C. As with any heat pump, capacity and efficiency vary with the outdoor temperature.\u003c\/p\u003e\n\u003cp\u003eIn the climate of \u003cstrong\u003eMontreal, Laval, Longueuil, Boucherville, and Montérégie\u003c\/strong\u003e, this distinction is particularly important. For a home that relies primarily on the heat pump during the winter, we always check the building's heating load and the presence of an appropriate backup heating system.\u003c\/p\u003e\n\u003ch3\u003eHigh airflow to distribute the available capacity\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit \u003cstrong\u003eDHP24NWB21S\u003c\/strong\u003e has four published airflow rates:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e706 \/ 647 \/ 588 \/ 530 CFM\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIts corresponding sound pressure levels are listed as:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e48 \/ 44 \/ 40 \/ 36 dB(A)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIts dimensions are \u003cstrong\u003e42 × 13 × 10 in\u003c\/strong\u003e, or approximately \u003cstrong\u003e1,078 × 325 × 246 mm\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe maximum airflow of \u003cstrong\u003e706 CFM\u003c\/strong\u003e is particularly relevant for a heat pump of this capacity. A 24K unit installed in an overly enclosed area may have plenty of available capacity without being able to distribute it effectively.\u003c\/p\u003e\n\u003cp\u003eThis is a situation we avoid when preparing our estimates: installing a large heat pump in a narrow corridor in the hope of heating four bedrooms whose doors remain closed rarely produces the expected result.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eindoor unit's position\u003c\/strong\u003e matters almost as much as the number of BTUs.\u003c\/p\u003e\n\u003ch3\u003eAutomatic vertical and horizontal louvers: yes, the P Series has them\u003c\/h3\u003e\n\u003cp\u003eYORK documentation is particularly interesting on this point. The P Series function table confirms:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eautomatic 3D vertical and horizontal swing\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eup\/down movement;\u003c\/li\u003e\n\u003cli\u003eleft\/right movement;\u003c\/li\u003e\n\u003cli\u003efixed-angle louver positions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIn other words, for this series, the \u003cstrong\u003evertical and horizontal louvers can be controlled automatically\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis detail is much more important than it may seem for a high-capacity unit. In an open area, we can direct the airflow toward a distant zone rather than concentrating all the air conditioning directly beneath the unit.\u003c\/p\u003e\n\u003cp\u003eHowever, poor placement can negate this advantage. Installing the wall-mounted unit behind a large cabinet, too close to a beam, or facing a wall only a few meters away inevitably limits the air-throw range.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi available, but via adapter\u003c\/h3\u003e\n\u003cp\u003eThe P Series does not include Wi-Fi in the same way as some newer heat pumps. YORK lists the \u003cstrong\u003eEWPE Smart\u003c\/strong\u003e app, available for the P, X, and Z Series, but specifies that a \u003cstrong\u003eCS532AH adapter is required for the P and X Series\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore accurately describe this feature as \u003cstrong\u003eoptional Wi-Fi\u003c\/strong\u003e, not built-in Wi-Fi as standard.\u003c\/p\u003e\n\u003cp\u003eThe wireless \u003cstrong\u003eDRCPX\u003c\/strong\u003e remote control is supplied as the standard controller with the P Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eInstallation in Montreal, Laval, Longueuil, the North Shore, and the South Shore: the details that determine the result\u003c\/h2\u003e\n\u003cp\u003eA \u003cstrong\u003eYORK DHP24CSB21S\u003c\/strong\u003e heat pump is relatively easy to understand on paper. On an actual job site, the quality of the result depends on dozens of details that do not appear in the product title.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we assess, among other things, the indoor unit's location, the length of the refrigerant run, the height difference between the units, condensate drainage, the electrical supply, potential vibration from the outdoor unit, and future access for maintenance.\u003c\/p\u003e\n\u003ch3\u003ePiping: 1\/4 in. liquid and 5\/8 in. gas\u003c\/h3\u003e\n\u003cp\u003eFor the 24K system, YORK specifies:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLiquid line: \u003cstrong\u003e1\/4 po\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eGas line: \u003cstrong\u003e5\/8 po\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDrain: \u003cstrong\u003e5\/8 po\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMaximum total piping length: \u003cstrong\u003e82 ft \/ 25 m\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003ePublished maximum height difference: \u003cstrong\u003e33 ft \/ 10 m\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis is something to check carefully during a replacement.\u003c\/p\u003e\n\u003cp\u003eWe regularly encounter properties where an old heat pump already has refrigerant lines installed in the walls. The fact that these lines are physically present does not guarantee that they are suitable for the new system. \u003cstrong\u003eThe diameter, condition, cleanliness, and compatibility must be verified before deciding to keep them.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor the DHP24CSB21S, the \u003cstrong\u003e1\/4 – 5\/8 in.\u003c\/strong\u003e combination must therefore be taken seriously.\u003c\/p\u003e\n\u003ch3\u003eA 208\/230 V power supply and suitable electrical protection\u003c\/h3\u003e\n\u003cp\u003eThe YORK 24K heat pump combination is powered by \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e. For the DHP24 heat pump model, the manufacturer specifies an \u003cstrong\u003eMCA of 16 A\u003c\/strong\u003e and an \u003cstrong\u003eMOCP of 25 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn practice, this data is used to correctly determine the circuit and electrical protection according to the manufacturer's requirements and applicable standards.\u003c\/p\u003e\n\u003cp\u003eWe never recommend simply choosing a circuit breaker based on estimated average consumption. The \u003cstrong\u003eMCA\u003c\/strong\u003e and \u003cstrong\u003emaximum overcurrent protection\u003c\/strong\u003e are among the data that must be verified before work begins.\u003c\/p\u003e\n\u003ch3\u003eOutdoor dimensions and clearances\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHP24CSB21S\u003c\/strong\u003e outdoor module measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e38 × 28 × 16 in\u003c\/strong\u003e\u003cbr\u003eor \u003cstrong\u003e955 × 700 × 396 mm\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIts published outdoor sound level is \u003cstrong\u003e59 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor an installation on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, in \u003cstrong\u003eMontreal\u003c\/strong\u003e, or in the denser areas of \u003cstrong\u003eLaval and Longueuil\u003c\/strong\u003e, we must consider not only the physical space occupied by the unit, but also:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eaccess for servicing;\u003c\/li\u003e\n\u003cli\u003ethe clearances required around the heat exchanger;\u003c\/li\u003e\n\u003cli\u003esnow;\u003c\/li\u003e\n\u003cli\u003ewater discharge from defrosting;\u003c\/li\u003e\n\u003cli\u003eproximity to windows;\u003c\/li\u003e\n\u003cli\u003evibrations transmitted to the structure;\u003c\/li\u003e\n\u003cli\u003emunicipal requirements applicable to the location of a heat pump.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA properly selected but poorly positioned unit can become unnecessarily noisy or difficult to maintain.\u003c\/p\u003e\n\u003ch3\u003eMistakes we seek to avoid with a 24,000 BTU heat pump\u003c\/h3\u003e\n\u003cp\u003eA durable installation involves more than mounting two units and connecting them with a pair of pipes.\u003c\/p\u003e\n\u003cp\u003eAmong the issues we systematically seek to eliminate in our \u003cstrong\u003eHVAC installations in Montreal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/strong\u003e are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ean indoor unit that is much too large for the room;\u003c\/li\u003e\n\u003cli\u003ean airflow directed straight at a bed, sofa, or work table;\u003c\/li\u003e\n\u003cli\u003ean insufficient drain slope;\u003c\/li\u003e\n\u003cli\u003eexisting piping with the wrong diameter;\u003c\/li\u003e\n\u003cli\u003ean outdoor support that amplifies vibrations;\u003c\/li\u003e\n\u003cli\u003ean outdoor unit positioned too close to an obstruction;\u003c\/li\u003e\n\u003cli\u003ea power supply selected without consulting the MCA and MOCP;\u003c\/li\u003e\n\u003cli\u003ea much longer refrigerant line set than expected;\u003c\/li\u003e\n\u003cli\u003ea poor understanding of the available capacity in extremely cold weather.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA \u003cstrong\u003e24,000 BTU\u003c\/strong\u003e unit is particularly sensitive to its location because of its high airflow. In a large open-concept area, this is an advantage. In a small enclosed room, however, it can create discomfort.\u003c\/p\u003e\n\u003ch3\u003eMaintaining a YORK P Series: preserving airflow before the problem becomes noticeable\u003c\/h3\u003e\n\u003cp\u003eThe airflow from a wall-mounted unit depends directly on the cleanliness of the filters, evaporator, and blower wheel.\u003c\/p\u003e\n\u003cp\u003eA unit capable of moving up to \u003cstrong\u003e706 CFM\u003c\/strong\u003e will not deliver the same results if the blower wheel is covered in dust or if the heat exchanger is clogged. The homeowner may sometimes feel that “the heat pump no longer cools like it used to,” when the problem is primarily related to airflow.\u003c\/p\u003e\n\u003cp\u003eWe therefore recommend periodically inspecting the filters and carrying out a \u003cstrong\u003ethorough cleaning of the wall-mounted heat pump\u003c\/strong\u003e when internal buildup warrants it. This is particularly relevant in homes with pets, open kitchens, dusty environments, and installations that operate almost continuously.\u003c\/p\u003e\n\u003ch3\u003eWarranty: clearly distinguish the YORK warranty from labour coverage\u003c\/h3\u003e\n\u003cp\u003eThe YORK catalog indicates a standard warranty of \u003cstrong\u003e7 years on the compressor and 5 years on parts\u003c\/strong\u003e, with the option to extend it to \u003cstrong\u003e10 years on the compressor and 10 years on parts\u003c\/strong\u003e after eligible registration. The document also mentions a 10-year labour protection option subject to additional conditions. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product sheet, for its part, shows \u003cstrong\u003e10-10-0 years\u003c\/strong\u003e of coverage and indicates that an \u003cstrong\u003eadditional warranty may be available\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eTo avoid any confusion, the warranty applicable to a given installation should always be confirmed at the time of purchase, particularly for a model from an older product generation.\u003c\/p\u003e\n\u003ch3\u003eIs this YORK eligible for a LogisVert rebate?\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet provided for this model states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR: No\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eENERGY STAR Cold Climate: No\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand no provincial rebate amount is currently listed.\u003c\/p\u003e\n\u003cp\u003eWe therefore do not recommend choosing this heat pump on the assumption that financial assistance will automatically be available. When a \u003cstrong\u003eheat pump rebate in Quebec\u003c\/strong\u003e is part of a project's financial calculation, we verify the specific model's eligibility before signing.\u003c\/p\u003e\n\u003cp\u003eThis is particularly important when a homeowner compares this YORK with a newer cold-climate heat pump whose initial price is higher but which may qualify for a different incentive program.\u003c\/p\u003e\n\u003ch3\u003eWho is this YORK 24K wall-mounted heat pump suitable for?\u003c\/h3\u003e\n\u003cp\u003eThis configuration may be suitable for a homeowner seeking a \u003cstrong\u003ehigh-capacity single-zone wall-mounted heat pump\u003c\/strong\u003e, particularly for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea large open area;\u003c\/li\u003e\n\u003cli\u003ean open-concept floor;\u003c\/li\u003e\n\u003cli\u003ea large basement;\u003c\/li\u003e\n\u003cli\u003ea commercial space;\u003c\/li\u003e\n\u003cli\u003ea room with a significant cooling load;\u003c\/li\u003e\n\u003cli\u003ea replacement where the existing mechanical and electrical specifications match the system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is less attractive if the project primarily requires \u003cstrong\u003eENERGY STAR Cold Climate\u003c\/strong\u003e certification, documented performance at very low temperatures below -20°C, or newer refrigerant technology.\u003c\/p\u003e\n\u003cp\u003eThe choice must therefore be based on the complete project, not solely on the \u003cstrong\u003eYORK\u003c\/strong\u003e name, the \u003cstrong\u003e18 SEER\u003c\/strong\u003e rating, or the \u003cstrong\u003e24,000 BTU\u003c\/strong\u003e capacity.\u003c\/p\u003e\n\u003ch3\u003eWhy an on-site estimate remains important for a 24K heat pump\u003c\/h3\u003e\n\u003cp\u003eTwo homes with exactly the same floor area may require two different HVAC solutions.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eMontréal\u003c\/strong\u003e, a century-old home with poorly insulated walls and large windows does not have the same thermal profile as a recently built condo of comparable size in \u003cstrong\u003eBoucherville\u003c\/strong\u003e. In \u003cstrong\u003eLaval\u003c\/strong\u003e, a bungalow with an open basement does not distribute air in the same way as a multistory cottage. In \u003cstrong\u003eLongueuil\u003c\/strong\u003e, the available location for the outdoor unit can also completely change the piping route.\u003c\/p\u003e\n\u003cp\u003eThat is why, at \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we use the estimate to determine:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe capacity actually required;\u003c\/li\u003e\n\u003cli\u003ethe best indoor location;\u003c\/li\u003e\n\u003cli\u003ethe best outdoor location;\u003c\/li\u003e\n\u003cli\u003ethe route of the lines;\u003c\/li\u003e\n\u003cli\u003eelectrical requirements;\u003c\/li\u003e\n\u003cli\u003eaccess constraints;\u003c\/li\u003e\n\u003cli\u003edrainage;\u003c\/li\u003e\n\u003cli\u003esupplementary heating options;\u003c\/li\u003e\n\u003cli\u003eand the model’s value compared with the heat pumps currently available.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOur review of the YORK P Series DHP24: a technical data sheet more interesting than its simple title\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eYORK P Series 18 SEER | 24000 BTU Wall-Mounted Heat Pump\u003c\/strong\u003e is a good example of the importance of reading technical data in detail.\u003c\/p\u003e\n\u003cp\u003eIt is indeed a unit from the \u003cstrong\u003e24K P Series family\u003c\/strong\u003e, but the YORK table gives this specific combination a rated cooling capacity of \u003cstrong\u003e22,000 BTU\/h\u003c\/strong\u003e, a heating capacity of \u003cstrong\u003e23,000 BTU\/h\u003c\/strong\u003e, a \u003cstrong\u003eSEER of 16\u003c\/strong\u003e, an \u003cstrong\u003eHSPF of 9\u003c\/strong\u003e, heating operation down to \u003cstrong\u003e-20 °C\u003c\/strong\u003e, airflow of up to \u003cstrong\u003e706 CFM\u003c\/strong\u003e, \u003cstrong\u003e1\/4–5\/8 in.\u003c\/strong\u003e piping, and a \u003cstrong\u003e208\/230 V\u003c\/strong\u003e power supply.\u003c\/p\u003e\n\u003cp\u003eIt also offers a real distribution advantage with \u003cstrong\u003eautomatic vertical and horizontal swing\u003c\/strong\u003e, while Wi-Fi control remains available with the appropriate adapter.\u003c\/p\u003e\n\u003cp\u003eThese are the details that determine whether it is truly suitable for a property, rather than relying on three figures in a title.\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen estimate for your YORK heat pump\u003c\/h3\u003e\n\u003cp\u003eAre you considering installing or replacing a \u003cstrong\u003eYORK wall-mounted heat pump in Montréal, Laval, Longueuil, the North Shore, the South Shore, or Montérégie\u003c\/strong\u003e? Contact \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e. We can assess the required capacity, location, piping, electrical requirements, and currently available options to propose an HVAC solution suited to your building.\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120363942180,"sku":"DHP24CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_MURALE_YORK_SERIE_P_24000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_bd2da4c6-0e63-4bce-ac05-620c85ad7020.png?v=1789426116"},{"product_id":"thermopompe-murale-york-serie-p-18-seer-30000-btu","title":"YORK P Series Wall-Mounted Heat Pump 18 SEER | 30000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA high-capacity wall-mounted heat pump that requires sizing as serious as its installation\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYORK Series P 18 SEER | 30000 BTU Wall-Mounted Heat Pump\u003c\/strong\u003e belongs to a very different category from the small 9,000- or 12,000-BTU wall-mounted heat pumps frequently installed in a bedroom, office, or small condo. With the \u003cstrong\u003eDHP30NWB21S indoors and DHP30CSB21S outdoors\u003c\/strong\u003e combination, we are looking at a unit designed to handle a significantly larger thermal load: a large open living room, an open-plan floor, a moderately sized commercial space, a common area, or a residential space where a smaller wall-mounted unit would quickly fall short in airflow.\u003c\/p\u003e\n\u003cp\u003eYORK precisely identifies this combination as a \u003cstrong\u003eSeries P\u003c\/strong\u003e wall-mounted heat pump, in the 30K class, powered by 208\/230 V. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we are particularly interested in this type of unit because a high-capacity wall-mounted system must be selected more carefully than through a simple floor-area calculation. In \u003cstrong\u003eMontreal, Laval, Longueuil, on the North Shore and South Shore\u003c\/strong\u003e, differences in insulation, windows, solar exposure, ceiling height, and room layout can completely change how a heat pump of this size performs.\u003c\/p\u003e\n\u003ch3\u003eThe “30,000 BTU” rating deserves a technical explanation\u003c\/h3\u003e\n\u003cp\u003eThe commercial name indicates \u003cstrong\u003e30,000 BTU\u003c\/strong\u003e, but YORK documentation from this generation provides an important clarification.\u003c\/p\u003e\n\u003cp\u003eFor the \u003cstrong\u003eDHP30CSB21S\u003c\/strong\u003e model, the brochure states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003enominal cooling capacity: \u003cstrong\u003e28,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ecooling modulation range: \u003cstrong\u003e9,485 to 30,025 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003enominal heating capacity: \u003cstrong\u003e28,400 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eheating modulation range: \u003cstrong\u003e9,997 to 32,994 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eefficiency: \u003cstrong\u003e18 SEER\u003c\/strong\u003e, \u003cstrong\u003e9 HSPF\u003c\/strong\u003e, and \u003cstrong\u003e10.35 EER\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003epower supply: \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eMCA: \u003cstrong\u003e20 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emaximum overcurrent protection: \u003cstrong\u003e30 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThere is nothing unusual about this difference between the commercial “30,000 BTU” class and a nominal capacity of 28,000 BTU\/h. The figure in the product name represents the capacity category, while the performance table shows what the unit delivers under standardized test conditions and how far its variable-speed compressor can modulate.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner, this means it is better not to compare two heat pumps solely based on the number in their name. \u003cstrong\u003eThe minimum, nominal, and maximum capacity\u003c\/strong\u003e give us a much more useful picture of their actual behavior.\u003c\/p\u003e\n\u003ch3\u003eAn inverter compressor that modulates rather than operating only in on-off mode\u003c\/h3\u003e\n\u003cp\u003eThe P Series uses \u003cstrong\u003einverter\u003c\/strong\u003e compressor technology. This principle is important for comfort: the heat pump can reduce or increase its output according to the building’s load instead of operating at full capacity all the time.\u003c\/p\u003e\n\u003cp\u003eThis modulation is particularly relevant for a unit of this size. A high-capacity heat pump that could not reduce its output sufficiently might cycle on and off repeatedly during milder days.\u003c\/p\u003e\n\u003cp\u003eHere, the published range starts at approximately \u003cstrong\u003e9,485 BTU\/h in cooling\u003c\/strong\u003e, allowing the system to significantly reduce its output when demand decreases. In heating mode, modulation drops to approximately \u003cstrong\u003e9,997 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor us, this information is almost as important as the maximum capacity when we evaluate an HVAC installation.\u003c\/p\u003e\n\u003ch3\u003eSEER 18: Be careful not to confuse SEER with SEER2\u003c\/h3\u003e\n\u003cp\u003eThis generation of the YORK P Series was documented according to the older \u003cstrong\u003eSEER, EER, and HSPF\u003c\/strong\u003e measurements. The YORK brochure lists \u003cstrong\u003e18 SEER, 10.35 EER, and 9 HSPF\u003c\/strong\u003e for this combination. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTherefore, “18 SEER” should not automatically be converted to “18 SEER2.” They are two different standards.\u003c\/p\u003e\n\u003cp\u003eThis distinction is important when a homeowner compares this YORK unit with a newer heat pump that directly displays \u003cstrong\u003eSEER2, EER2, and HSPF2\u003c\/strong\u003e values. A professional comparison must consider the standard used, not just the number.\u003c\/p\u003e\n\u003ch3\u003eAirflow: up to 706 CFM to move air through a large space\u003c\/h3\u003e\n\u003cp\u003eA 30,000 BTU heat pump must also be able to distribute its heating or cooling efficiently.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHP30NWB21S\u003c\/strong\u003e indoor unit offers four airflow levels listed at:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e706 \/ 618 \/ 530 \/ 412 CFM\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIts sound pressure level varies accordingly between \u003cstrong\u003e51 \/ 45 \/ 41 \/ 37 dB(A)\u003c\/strong\u003e. The published dimensions of the indoor unit are \u003cstrong\u003e53 × 13 × 10 in.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe 53-inch width is worth considering from the estimate visit onward. This unit is significantly longer than a low-capacity wall-mounted heat pump.\u003c\/p\u003e\n\u003cp\u003eWe must therefore check not only the available wall surface, but also:\u003c\/p\u003e\n\u003cp\u003ethe distance from the ceiling, windows, doors, cabinets, airflow path, and the location that allows the piping and drain to be routed.\u003c\/p\u003e\n\u003cp\u003ePoor positioning can considerably reduce comfort quality, even when the unit's capacity is theoretically sufficient.\u003c\/p\u003e\n\u003ch3\u003eAutomatic vertical and horizontal louvers\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification identifies control of the \u003cstrong\u003evertical and horizontal louvers as automatic\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWith a unit delivering up to 706 CFM, airflow direction becomes particularly important. In a large open living room, for example, we generally prefer a position that allows the airflow to travel through the room without being immediately blocked by a beam, a tall piece of furniture, or a cross wall.\u003c\/p\u003e\n\u003cp\u003eIn cooling mode, proper airflow distribution promotes more even distribution of cool air. In heating mode, it helps direct the air to limit heat buildup near the ceiling.\u003c\/p\u003e\n\u003cp\u003eYORK documentation also confirms that compatible controllers allow management of the \u003cstrong\u003elouver position\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eA larger outdoor unit than a standard wall-mounted heat pump\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHP30CSB21S\u003c\/strong\u003e outdoor unit measures approximately \u003cstrong\u003e39 × 31 × 17 in\u003c\/strong\u003e and has a published sound pressure level of \u003cstrong\u003e62 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a project in \u003cstrong\u003eMontreal or Longueuil\u003c\/strong\u003e, this can directly affect the selected location when the property has a narrow side passage or neighboring homes are close together.\u003c\/p\u003e\n\u003cp\u003eOn the \u003cstrong\u003eSouth Shore or North Shore\u003c\/strong\u003e, we often encounter more placement options on the property, but the position remains important for airflow, winter drainage, and future access for HVAC maintenance.\u003c\/p\u003e\n\u003cp\u003eAn outdoor unit should not be installed simply where the refrigerant line run is shortest. We also assess its clearance, accessibility, potential snow accumulation, and noise impact on living areas.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -20°C according to the range published by YORK\u003c\/h3\u003e\n\u003cp\u003eThe brochure indicates a heating operating range of \u003cstrong\u003e-20 °C to 24 °C\u003c\/strong\u003e for the DHP30CSB21S. The published cooling range is \u003cstrong\u003e-18 °C to 46 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is particularly important information for Quebec.\u003c\/p\u003e\n\u003cp\u003eHowever, a minimum operating temperature of -20 °C does not mean that the heat pump produces its full rated capacity at -20 °C. The available capacity of a heat pump varies with outdoor temperature.\u003c\/p\u003e\n\u003cp\u003eThe brochure provided does not publish, for this specific model, a detailed table showing its capacity at \u003cstrong\u003e-8 °C, -15 °C, and -20 °C\u003c\/strong\u003e. We therefore avoid inventing these values.\u003c\/p\u003e\n\u003cp\u003eFor a project where the heat pump must handle a significant portion of the heating load during the coldest periods of the Montreal winter, this distinction must be part of the sizing process.\u003c\/p\u003e\n\u003ch2\u003eInstalling a YORK P Series 30K in Greater Montreal: the details that really make a difference\u003c\/h2\u003e\n\u003ch3\u003e1\/4 in – 5\/8 in refrigeration piping\u003c\/h3\u003e\n\u003cp\u003eThe 30K model uses a liquid line of \u003cstrong\u003e1\/4 po\u003c\/strong\u003e and a gas line of \u003cstrong\u003e5\/8 po\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe documentation also specifies:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003emaximum total length: 98.5 ft (30 m)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003emaximum elevation difference: 33 ft (10 m)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003edrain: 5\/8 in\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese values become very useful in duplexes, multi-story homes, and commercial premises where the outdoor unit is not located directly behind the wall-mounted head.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we prefer to plan the route before work begins. This avoids an improvised path that would multiply bends, unnecessarily expose the piping, or create difficulties for condensate drainage.\u003c\/p\u003e\n\u003ch3\u003eWhy the drain should never be treated as a secondary detail\u003c\/h3\u003e\n\u003cp\u003eWhen a heat pump operates in cooling or dehumidification mode, the indoor unit produces condensation water.\u003c\/p\u003e\n\u003cp\u003eThe drain must therefore maintain an adequate slope when operating by gravity. When the building configuration does not allow this, a pumping solution may become necessary.\u003c\/p\u003e\n\u003cp\u003eA 30,000 BTU unit can handle a significant volume of air. We therefore pay particular attention to drainage to prevent backflow, leaks on the wall, or water accumulation in the unit.\u003c\/p\u003e\n\u003cp\u003eThe YORK brochure also specifies a drain connection diameter of \u003cstrong\u003e5\/8 po\u003c\/strong\u003e for this wall-mounted series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eElectrical circuit: 20 A MCA and maximum 30 A protection\u003c\/h3\u003e\n\u003cp\u003eThe electrical installation should not be determined solely based on the 30,000 BTU rating.\u003c\/p\u003e\n\u003cp\u003eFor the DHP30 model, YORK publishes:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMCA: 20 A\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMOCP: 30 A\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eVoltage: 208\/230 V, 1 phase, 60 Hz\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe wiring gauge, protection, and power-supply compliance must be validated according to the applicable electrical requirements and the actual installation characteristics.\u003c\/p\u003e\n\u003cp\u003eFor us, this verification is part of normal job preparation, particularly in older properties in \u003cstrong\u003eMontreal, Laval, and Longueuil\u003c\/strong\u003e, where the electrical panel and existing circuits may impose certain constraints.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi available as an option\u003c\/h3\u003e\n\u003cp\u003eThe YORK P Series from this generation does not necessarily have Wi-Fi built directly into the unit.\u003c\/p\u003e\n\u003cp\u003eThe brochure identifies the \u003cstrong\u003eCS532AH adapter\u003c\/strong\u003e as required for the P Series Wi-Fi function. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eRemote control can then be carried out using the \u003cstrong\u003eEWPE Smart App\u003c\/strong\u003e, announced by YORK for the P, X, and Z series. The documentation again specifies that the P and X series require the CS532AH adapter. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eDRCPX\u003c\/strong\u003e wireless remote, on the other hand, is included as standard with the P and X units. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis distinction avoids an unpleasant surprise: \u003cstrong\u003ean included wireless remote does not mean built-in Wi-Fi\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eR-410A: an important factor to know for future maintenance\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHP30CSB21S uses R-410A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is therefore an earlier generation than the newer units that use refrigerants such as R-32 or R-454B.\u003c\/p\u003e\n\u003cp\u003eFor the homeowner, this does not prevent normal use of the system. It mainly means that it is useful to know the exact model and refrigerant during a future \u003cstrong\u003eservice call, HVAC maintenance visit, or refrigeration-system diagnosis\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we always recommend keeping the model number of both units along with the installation information. This data greatly speeds up troubleshooting several years later.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR, cold climate, and subsidies: do not assume eligibility\u003c\/h3\u003e\n\u003cp\u003eThe specification sheet currently provided by AirGreen identifies this product as:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR: No\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eENERGY STAR Cold Climate: No\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo LogisVert amount is currently indicated for it.\u003c\/p\u003e\n\u003cp\u003eTherefore, we avoid presenting this YORK P Series as automatically eligible for a subsidy. Program criteria change, and eligibility must be verified based on the model, AHRI combination, and requirements in effect at the time of the project.\u003c\/p\u003e\n\u003cp\u003eThe AHRI identifier listed on the AirGreen specification sheet is \u003cstrong\u003e8578553\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a customer whose main priority is maximizing current financial assistance, we can also compare this unit with newer models before finalizing the selection.\u003c\/p\u003e\n\u003ch3\u003eA warranty that depends in part on registration\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates a warranty of \u003cstrong\u003e10 years on the compressor, 10 years on parts, and 0 years on labour\u003c\/strong\u003e, with the possibility of an additional warranty.\u003c\/p\u003e\n\u003cp\u003eThe YORK brochure for this generation provides useful context: the published standard coverage was \u003cstrong\u003e7 years on the compressor and 5 years on parts\u003c\/strong\u003e, while residential registration made it possible to extend this to \u003cstrong\u003e10 years on the compressor and 10 years on parts\u003c\/strong\u003e. Ten years of labour coverage was also presented as an additional option. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThat is why registering equipment after installation is not a formality to be overlooked.\u003c\/p\u003e\n\u003ch3\u003eFor which projects is this 30K particularly relevant?\u003c\/h3\u003e\n\u003cp\u003eWe primarily consider this capacity when the space has a real load justifying a large wall-mounted unit: \u003cstrong\u003elarge open area, higher ceiling, extensive fenestration, commercial space, entire floor, or space where several smaller zones are broadly connected\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eConversely, a heat pump of this size is not automatically the best solution for a house simply because its total area seems large.\u003c\/p\u003e\n\u003cp\u003eA wall-mounted indoor unit primarily heats and cools the space that its airflow can actually reach. Closed bedrooms at the end of a hallway will not necessarily receive the same comfort as the living room where the unit is located.\u003c\/p\u003e\n\u003cp\u003eThis is one of the selection errors we want to avoid: compensating for poor air distribution with excessive capacity.\u003c\/p\u003e\n\u003cp\u003eIn some buildings, a 30K wall-mounted heat pump makes perfect sense. In others, two smaller zones, a multi-zone system, or a central system may provide much more even distribution.\u003c\/p\u003e\n\u003ch3\u003eWhat we check before recommending the DHP30CSB21S\u003c\/h3\u003e\n\u003cp\u003eDuring an assessment, we therefore do not limit ourselves to the number of BTUs. We examine the geometry of the space, air circulation, insulation, fenestration, floors, the indoor unit’s position, the length of the refrigerant line, the drain slope, the outdoor unit’s location, and the electrical characteristics.\u003c\/p\u003e\n\u003cp\u003eThis method is particularly important with the \u003cstrong\u003eYORK P Series 30,000 BTU\u003c\/strong\u003e, because a properly sized unit can provide excellent comfort, whereas an oversized or poorly positioned unit will deliver a much less convincing experience, even if the equipment itself operates perfectly.\u003c\/p\u003e\n\u003cp\u003eYORK documentation also points out that its mini-split systems were designed for residential and light commercial applications where requirements vary according to load and occupancy. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e2020 Documentation and Verification of the Model Actually Delivered\u003c\/h3\u003e\n\u003cp\u003eThe technical brochure used for this P Series is a Johnson Controls\/YORK publication dated \u003cstrong\u003eNovember 2020\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor this reason, when selling or replacing equipment, we always verify that the model numbers of the equipment actually available match the applicable technical documentation.\u003c\/p\u003e\n\u003cp\u003eThis verification is particularly important for the dimensions, refrigerant, electrical specifications, Wi-Fi accessories, and warranty.\u003c\/p\u003e\n\u003ch3\u003eWhy Have AirGreen Install Your YORK P Series\u003c\/h3\u003e\n\u003cp\u003eA 30K wall-mounted heat pump is more than an indoor unit mounted on the wall and an outdoor unit connected behind it.\u003c\/p\u003e\n\u003cp\u003eThe result depends on \u003cstrong\u003esizing, the refrigerant line route, drainage, positioning, electrical installation, commissioning, and post-installation follow-up\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we carry out HVAC installations and services throughout \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e, including \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, and the North Shore\u003c\/strong\u003e. Our goal is to offer equipment that truly matches the building rather than selecting a capacity based solely on a quick estimate of the floor area.\u003c\/p\u003e\n\u003cp\u003eFor the \u003cstrong\u003eYORK P Series 18 SEER | 30,000 BTU Wall-Mounted Heat Pump\u003c\/strong\u003e, this notably means verifying that its high capacity, airflow of up to 706 CFM, 1\/4–5\/8 in. piping, and 208\/230 V power supply are truly suitable for the project before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen for a quote, a sizing assessment, or to compare this YORK P Series 30K with other wall-mounted heat pumps suited to your property in Montreal, Laval, Longueuil, on the North Shore, or the South Shore. We can help you choose the HVAC configuration that suits the building, its use, and your comfort priorities.\u003c\/strong\u003e\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120363974948,"sku":"DHP30CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_MURALE_YORK_SERIE_P_30000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_39c8a380-a9bf-48cc-9d73-cc55f51ca07e.png?v=1789426117"},{"product_id":"thermopompe-murale-york-serie-p-18-seer-36000-btu","title":"YORK P Series Wall-Mounted Heat Pump 18 SEER | 36000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA high-capacity wall-mounted heat pump that requires careful sizing in Quebec\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eA \u003cstrong\u003e36,000 BTU\u003c\/strong\u003e wall-mounted heat pump is not simply a larger version of a 12,000 or 18,000 BTU unit. At this capacity, the choice of location, the truly open floor area, air circulation, the building’s insulation level, and the thermal load become decisive. The \u003cstrong\u003eYORK P Series 18 SEER\u003c\/strong\u003e, consisting of the \u003cstrong\u003eDHP36NWB21S\u003c\/strong\u003e indoor unit and the \u003cstrong\u003eDHP36CSB21S\u003c\/strong\u003e outdoor unit, belongs precisely to this category of systems designed to handle a large area with a single wall-mounted unit.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, when we analyze this type of unit for a property in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, or the South Shore\u003c\/strong\u003e, our primary concern is never to choose the largest possible BTU rating. Instead, we check whether this capacity can be distributed properly throughout the space. A 36,000 BTU heat pump installed in a large open-plan area can make perfect sense. The same unit placed in a hallway with the expectation of cooling four bedrooms behind closed doors will deliver a much less convincing result.\u003c\/p\u003e\n\u003cp\u003eThe YORK P Series is an inverter heat pump using \u003cstrong\u003eR-410A\u003c\/strong\u003e, powered by \u003cstrong\u003e208\/230 V\u003c\/strong\u003e, with a published efficiency of \u003cstrong\u003e18 SEER\u003c\/strong\u003e for this capacity. YORK’s 2020 documentation places the model in the P 18 SEER range and confirms the DHP36NWB21S\/DHP36CSB21S pairing. It indicates a nominal cooling capacity of \u003cstrong\u003e33,600 BTU\/h\u003c\/strong\u003e, a nominal heating capacity of \u003cstrong\u003e34,600 BTU\/h\u003c\/strong\u003e, an EER of \u003cstrong\u003e8.2\u003c\/strong\u003e, a SEER of \u003cstrong\u003e18\u003c\/strong\u003e, and an HSPF of \u003cstrong\u003e9\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy is the product called “36,000 BTU” when the stated nominal capacity is 33,600 BTU\/h?\u003c\/h3\u003e\n\u003cp\u003eThis is an important technical detail that is often misunderstood.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e36,000 BTU\u003c\/strong\u003e in the commercial name refers to the system’s capacity class. However, the YORK technical specifications state a nominal cooling capacity of \u003cstrong\u003e33,600 BTU\/h\u003c\/strong\u003e. Thanks to its inverter compressor, the unit does not operate continuously at this fixed value: its published cooling capacity varies approximately from \u003cstrong\u003e7,404 to 35,997 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn heating mode, the published rated capacity is \u003cstrong\u003e34,600 BTU\/h\u003c\/strong\u003e, with a stated modulation range of \u003cstrong\u003e14,979 to 35,997 BTU\/h\u003c\/strong\u003e under the conditions described by the manufacturer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation is much more advantageous than operation that is exclusively on\/off. Once the desired temperature is approached, the compressor can reduce its speed rather than stopping abruptly and restarting a few minutes later. In a properly sized large room, this generally provides a more stable temperature and limits comfort fluctuations.\u003c\/p\u003e\n\u003ch3\u003eThe key technical data to know before installation\u003c\/h3\u003e\n\u003cp\u003eFor the \u003cstrong\u003eDHP36NWB21S \/ DHP36CSB21S\u003c\/strong\u003e pairing, the relevant data includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eCapacity class: 36,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated cooling capacity: 33,600 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling range: 7,404 to 35,997 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating capacity: 34,600 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePublished heating range: 14,979 to 35,997 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER: 18\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF: 9\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER: 8.2\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-410A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 24 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOCP\/MOP: 40 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant piping: 1\/4 in liquid and 5\/8 in gas\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum total piping length: 98.5 ft \/ 30 m\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum elevation difference: 33 ft \/ 10 m\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: approximately 53 × 13 × 10 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: approximately 39 × 31 × 17 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor sound pressure: 37 to 54 dB(A), depending on the speed\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound pressure: 65 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi: available with CS532AH adapter\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDRCPX wireless remote control: standard\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAutomatic vertical and horizontal louver control\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating operating range: down to -20 °C according to the manufacturer's documentation\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe dimensions, airflow rates, sound levels, refrigerant connections, and piping limits are detailed in the YORK documentation for the 36,000 BTU model. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eHigh airflow: an advantage in a large room, a constraint in a small space\u003c\/h3\u003e\n\u003cp\u003eThe DHP36NWB21S indoor unit is wide: approximately \u003cstrong\u003e53 inches\u003c\/strong\u003e. It is not a unit we install above a small window without carefully checking the clearances and room geometry.\u003c\/p\u003e\n\u003cp\u003eThe published maximum airflow reaches approximately \u003cstrong\u003e736 CFM\u003c\/strong\u003e. The other levels are approximately \u003cstrong\u003e647, 530, and 412 CFM\u003c\/strong\u003e. Indoor sound levels range from \u003cstrong\u003e37 dB(A)\u003c\/strong\u003e at low speed to \u003cstrong\u003e54 dB(A)\u003c\/strong\u003e at high speed. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese figures explain why placement matters so much. In a large living room with a high ceiling, a store, an open-plan space, or a large kitchen-dining-living area, this volume of air can help project conditioned air over a significant distance. Conversely, in a room that is far too small, occupants may feel the air movement more strongly and experience operating cycles that do not match the intended use.\u003c\/p\u003e\n\u003cp\u003eWe therefore favor a wall that allows the unit to blow along the length of the area rather than directly toward a sofa, bed, work table, or an area where occupants remain stationary for several hours.\u003c\/p\u003e\n\u003ch3\u003eAutomatic vertical and horizontal louvers: a particularly useful detail at 36,000 BTU\u003c\/h3\u003e\n\u003cp\u003eThe P Series includes airflow direction control with \u003cstrong\u003eautomatic vertical and horizontal swing\u003c\/strong\u003e, referred to in the documentation as “3D Auto Swing.” YORK also indicates up\/down and left\/right swing functions, as well as angular positioning. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn a small heat pump, louver direction already improves comfort. On a unit with this capacity, it becomes even more important.\u003c\/p\u003e\n\u003cp\u003eIn cooling mode, we generally seek to take advantage of the natural circulation of cool air without directing a concentrated stream straight at occupants. In heating mode, the direction can be adjusted to push warm air more effectively toward the occupied area. Horizontal swing also helps distribute airflow over a wider area when a single wall-mounted head serves a large room.\u003c\/p\u003e\n\u003ch3\u003eDown to -20 °C in heating mode: what this figure actually means\u003c\/h3\u003e\n\u003cp\u003eThe documentation indicates a \u003cstrong\u003eheating operating range of -20 °C to 24 °C\u003c\/strong\u003e for model DHP36CSB21S. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, a common mistake must be avoided: \u003cstrong\u003ea minimum operating temperature is not the same thing as a capacity guaranteed at that temperature\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer confirms that the unit can operate down to -20 °C, but the supplied table does not provide a specific certified capacity for this model at -8 °C or -15 °C. We therefore would not present this heat pump as though it automatically delivered its nominal 34,600 BTU at -20 °C.\u003c\/p\u003e\n\u003cp\u003eThis is particularly important in Greater Montreal. A residence that intends to use a heat pump as its primary heating source must be assessed differently from a building where the unit supplements electric baseboard heaters, a furnace, or another heating system.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eYORK P Series\u003c\/strong\u003e can provide heating in cold weather, but it should not be confused with a modern heat pump specifically certified as \u003cstrong\u003eENERGY STAR cold climate\u003c\/strong\u003e with detailed capacity tables at very low temperatures.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product sheet provided for this model also identifies it as \u003cstrong\u003enot ENERGY STAR\u003c\/strong\u003e and \u003cstrong\u003enot ENERGY STAR Cold Climate\u003c\/strong\u003e. It currently lists no provincial LogisVert grant associated with the product. For a new project where the primary objective is to maximize grants and performance below -20 °C, we normally compare this option with newer cold-climate heat pumps before making a final recommendation.\u003c\/p\u003e\n\u003ch3\u003eBeware of the old SEER ratings and the new SEER2 ratings\u003c\/h3\u003e\n\u003cp\u003eThis heat pump comes from a generation documented by YORK in 2020. The manufacturer therefore presents its performance according to the \u003cstrong\u003eSEER, HSPF, and EER\u003c\/strong\u003e ratings used in that documentation: \u003cstrong\u003e18 SEER, 9 HSPF, and 8.2 EER\u003c\/strong\u003e for the 36,000 BTU model.\u003c\/p\u003e\n\u003cp\u003eAn SEER of 18 should not automatically be converted to “SEER2 18.” The testing methods are not identical.\u003c\/p\u003e\n\u003cp\u003eFor this reason, when we present this YORK P Series, we prefer to retain the manufacturer’s published values rather than create an approximate conversion. This approach avoids incorrectly comparing an older-generation heat pump with a newer unit whose certification is already expressed entirely in \u003cstrong\u003eSEER2 and HSPF2\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e1\/4 in. - 5\/8 in. refrigerant fittings: to be checked before replacement\u003c\/h3\u003e\n\u003cp\u003eThe DHP36NWB21S\/DHP36CSB21S combination uses \u003cstrong\u003e1\/4 in. liquid and 5\/8 in. gas piping\u003c\/strong\u003e. YORK allows a maximum total length of approximately \u003cstrong\u003e98.5 feet\u003c\/strong\u003e, with a maximum elevation difference of \u003cstrong\u003e33 feet\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis information is particularly important when replacing an older heat pump.\u003c\/p\u003e\n\u003cp\u003eIt is tempting to automatically keep the existing piping because it already passes through several walls, a finished ceiling, or a difficult-to-access area. We never take this compatibility for granted simply because the two systems appear to have similar capacity.\u003c\/p\u003e\n\u003cp\u003eWe check the actual diameter of both lines, their condition, length, insulation, installation method, and compatibility with the new equipment. An incorrect diameter can affect oil return, pressures, compressor operation, and the system’s overall reliability.\u003c\/p\u003e\n\u003ch3\u003eThe electrical circuit must be designed for 24 A MCA and a maximum of 40 A\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer specifies for the DHP36CSB21S a \u003cstrong\u003eminimum circuit ampacity of 24 A\u003c\/strong\u003e and \u003cstrong\u003emaximum overcurrent protection of 40 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis does not simply mean finding an empty space in the electrical panel.\u003c\/p\u003e\n\u003cp\u003eBefore an AirGreen installation in \u003cstrong\u003eMontreal, Laval, Longueuil, Boucherville, Terrebonne, Repentigny, Blainville, Saint-Eustache, Brossard, or elsewhere on the South Shore and North Shore\u003c\/strong\u003e, we must consider the panel capacity, dedicated circuit, wiring gauge, disconnecting means near the outdoor unit, and the electrical requirements applicable to the job.\u003c\/p\u003e\n\u003cp\u003eFor a 36,000 BTU heat pump, this check should be part of the initial planning, especially in an older property that still has a panel with limited capacity.\u003c\/p\u003e\n\u003ch3\u003eOptional Wi-Fi, wireless remote included\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDRCPX\u003c\/strong\u003e wireless remote is included as the standard controller with the P Series. Wi-Fi control is possible, but it requires the \u003cstrong\u003eCS532AH adapter\u003c\/strong\u003e. The YORK brochure states that the EWPE Smart app can be used with the P Series when this adapter is installed. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is an important distinction: Wi-Fi is not built into this version by default.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner who mainly wants to adjust the setpoint, mode, fan speed, and louver direction from the room, the standard remote covers the essential functions. For a cottage, apartment, business, or simply for remote control from a phone, the Wi-Fi adapter may be useful.\u003c\/p\u003e\n\u003ch2\u003eWhat we check at AirGreen before recommending a YORK P Series 36,000 BTU\u003c\/h2\u003e\n\u003ch3\u003eHigh capacity does not replace proper air distribution\u003c\/h3\u003e\n\u003cp\u003eOne of the scenarios we regularly need to correct in HVAC is an oversized unit selected in the hope of “pushing” air into several enclosed rooms.\u003c\/p\u003e\n\u003cp\u003eA wall-mounted heat pump primarily heats and cools the space where its indoor unit is installed. A \u003cstrong\u003e36,000 BTU\u003c\/strong\u003e model can move more air than a small unit, but it does not turn a house with separate rooms into a central system.\u003c\/p\u003e\n\u003cp\u003eLet’s take a typical layout: a large ground floor comprising a kitchen, dining room, and living room with no major walls between the areas. A properly positioned large wall-mounted unit can be highly effective there because its airflow can circulate freely.\u003c\/p\u003e\n\u003cp\u003eNow, let’s place the same heat pump in a hallway with three enclosed bedrooms and a bathroom. Even with 36,000 BTUs available, the doors and partitions become the real obstacles. Adding capacity does not properly solve the distribution problem.\u003c\/p\u003e\n\u003cp\u003eIn this second case, we may recommend a different configuration: multiple zones, a multi-zone heat pump, a ducted system, or another solution better suited to the building.\u003c\/p\u003e\n\u003ch3\u003eA 53-inch indoor unit requires a proper installation plan\u003c\/h3\u003e\n\u003cp\u003eThe size of the indoor evaporator should be checked even before choosing its final position. At approximately \u003cstrong\u003e53 inches wide\u003c\/strong\u003e, sufficient space must be provided for mounting, connections, maintenance, and airflow.\u003c\/p\u003e\n\u003cp\u003eWe also assess the condensate drain route. A drain installed with an improper slope can cause drainage problems, noise, leaks, or an unnecessary need for a condensate pump.\u003c\/p\u003e\n\u003cp\u003eOutside, the \u003cstrong\u003e39 × 31 × 17 inch\u003c\/strong\u003e unit must be installed with sufficient clearance around the heat exchanger and fan. Its published sound pressure level is \u003cstrong\u003e65 dB(A)\u003c\/strong\u003e, which also warrants considering its position relative to bedrooms, patios, windows, and neighboring properties. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWarranty: why system registration matters\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing indicates a warranty of \u003cstrong\u003e10 years on the compressor, 10 years on parts, and 0 years on labor\u003c\/strong\u003e for this product.\u003c\/p\u003e\n\u003cp\u003eYORK documentation explains the warranty mechanism for this generation more precisely: the published standard coverage was \u003cstrong\u003e7 years on the compressor and 5 years on parts\u003c\/strong\u003e, while eligible system registration allowed an upgrade to extended protection of \u003cstrong\u003e10 years on the compressor and 10 years on parts\u003c\/strong\u003e. The manufacturer also mentioned a separate labor coverage option. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThat is why we recommend always validating the product registration, serial number, and applicable terms at the time of installation rather than simply keeping the invoice in a file.\u003c\/p\u003e\n\u003ch3\u003eWho is this heat pump best suited for?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eYORK P Series 18 SEER 36,000 BTU\u003c\/strong\u003e is primarily suitable when a very large open area requires substantial capacity and a single wall-mounted unit is a logical solution.\u003c\/p\u003e\n\u003cp\u003eIt may be suitable for a large open-concept ground floor, certain lofts, light commercial spaces, large family rooms, or properties where air conditioning is a major priority and supplemental heating already exists.\u003c\/p\u003e\n\u003cp\u003eWe would be much more cautious if the project required a primary heat pump for Quebec’s extreme cold, eligibility for cold-climate subsidy programs, or efficiency comparable to the best current-generation units.\u003c\/p\u003e\n\u003cp\u003eThis distinction is part of an HVAC contractor’s role: \u003cstrong\u003enot recommending a product solely because its rated capacity appears sufficient\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation in Montreal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we can verify on-site whether this YORK heat pump truly matches the building, the thermal load, and the intended use.\u003c\/p\u003e\n\u003cp\u003eWe examine the actual area served, insulation, sun exposure, number of windows, ceiling height, airflow between rooms, electrical panel, refrigerant line routing, drainage, and the location of the outdoor unit, among other factors.\u003c\/p\u003e\n\u003cp\u003eThis assessment also determines whether a 36,000 BTU wall-mounted heat pump is preferable to two smaller units, a multi-zone system, or a central or ducted solution.\u003c\/p\u003e\n\u003cp\u003eFor homeowners in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e, this comparison is often more important than the difference between two technical specifications. A high-performance unit can only deliver its full performance when properly sized and installed.\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen quote\u003c\/h3\u003e\n\u003cp\u003eTo obtain the price of the \u003cstrong\u003eYORK P Series 18 SEER Wall-Mounted Heat Pump | 36000 BTU\u003c\/strong\u003e, check its availability, or confirm whether the \u003cstrong\u003eDHP36NWB21S \/ DHP36CSB21S\u003c\/strong\u003e model is suitable for your property, contact \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWe can compare this YORK with other wall-mounted solutions and recommend a configuration suited to your building rather than a capacity chosen solely based on the number of square feet.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePhone: 514-316-2973\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eEmail: \u003ca class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003esales@airgreen.ca\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120364204324,"sku":"DHP36CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_MURALE_YORK_SERIE_P_36000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_8e4aa07d-58c0-4faf-8dfc-7807d3a343f5.png?v=1789426159"},{"product_id":"mini-split-york-serie-x-23-seer-9000-btu-115v","title":"YORK X Series Mini Split 23 SEER | 9000 BTU 115V","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA compact, efficient 115 V wall-mounted heat pump, particularly appealing when the electrical supply imposes constraints\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYORK X Series 23 SEER Mini Split | 9000 BTU 115V\u003c\/strong\u003e occupies a somewhat unique position among wall-mounted heat pumps. Its rated capacity of \u003cstrong\u003e9,000 BTU\/h\u003c\/strong\u003e, \u003cstrong\u003e115 V\u003c\/strong\u003e power supply, and published seasonal efficiency of \u003cstrong\u003e23 SEER\u003c\/strong\u003e make it a suitable solution for small residential areas where installing a much larger unit powered by 208\/230 V would be unnecessary—or sometimes complicated.\u003c\/p\u003e\n\u003cp\u003eThe system consists of the \u003cstrong\u003eDHX09NWB11S\u003c\/strong\u003e indoor unit and the \u003cstrong\u003eDHX09CSB11S\u003c\/strong\u003e outdoor unit. YORK identifies it in its documentation as a wall-mounted inverter heat pump from the \u003cstrong\u003eX Series\u003c\/strong\u003e, designed to heat and cool a single zone. The manufacturer’s brochure also presents the X Series as a range offering up to \u003cstrong\u003e23 SEER\u003c\/strong\u003e, with inverter technology, quiet operation, a rugged steel outdoor chassis, corrosion-resistant coating, and demand-based defrosting. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Climatisation \u0026amp; Chauffage\u003c\/strong\u003e, we are particularly interested in this type of model for projects where the question is not simply “how many BTUs are needed?” but also: what electrical circuit is available, what is the actual size of the room, where can the outdoor unit be installed, and how much piping will need to be planned?\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eMontreal, Laval, Longueuil, on the North Shore and the South Shore\u003c\/strong\u003e, these details often make the difference between a straightforward installation and one that requires electrical work, finish modifications, or a much more complex line-set route.\u003c\/p\u003e\n\u003ch3\u003eKey technical figures for the YORK DHX09NWB11S \/ DHX09CSB11S\u003c\/h3\u003e\n\u003cp\u003eThe YORK brochure provides very precise data for this 115 V combination. The rated cooling capacity is \u003cstrong\u003e9,000 BTU\/h\u003c\/strong\u003e, but the inverter compressor allows modulation from \u003cstrong\u003e2,764 to 10,918 BTU\/h\u003c\/strong\u003e. In heating mode, the rated capacity reaches \u003cstrong\u003e9,900 BTU\/h\u003c\/strong\u003e, with a published modulation range of \u003cstrong\u003e2,081 to 13,989 BTU\/h\u003c\/strong\u003e. The stated efficiency is \u003cstrong\u003e23 SEER\u003c\/strong\u003e, \u003cstrong\u003e10.5 HSPF\u003c\/strong\u003e, and \u003cstrong\u003e13 EER\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a small wall-mounted heat pump, this modulation range is significant. The unit does not need to run continuously at 9,000 BTU. When the heating or cooling load decreases, the inverter can reduce output to maintain a more stable temperature.\u003c\/p\u003e\n\u003cp\u003eThe main technical specifications are as follows:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: DHX09NWB11S\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: DHX09CSB11S\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated cooling capacity: 9,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling range: 2,764 to 10,918 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating capacity: 9,900 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating range: 2,081 to 13,989 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER: 23\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER: 13\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF: 10.5\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-410A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 115 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 12 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOCP\/MOP: 20 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated current in cooling: 6.2 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated current in heating: 6.2 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePiping: 1\/4 in liquid and 3\/8 in gas\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDrain: 5\/8 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum piping length: 49.2 ft \/ 15 m\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum elevation difference: 33 ft \/ 10 m\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating operating range: down to -20 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling operating range: up to 46 °C outdoor temperature\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor sound level: 26 to 43 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound level: 53 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit dimensions: approximately 33 × 11 × 8 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit dimensions: approximately 33 × 21 × 12.5 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi: optional with CS532AH adapter\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDRCPX wireless remote control: included\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese airflow, sound level, dimensions, connection, and operating range values are those published by YORK for the 9,000 BTU 115 V model in the X Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy 115 V can really simplify certain projects\u003c\/h3\u003e\n\u003cp\u003eMost wall-mounted heat pumps of comparable capacity that we encounter today are powered by 208\/230 V. The \u003cstrong\u003eDHX09CSB11S operates at 115 V\u003c\/strong\u003e, which can be an advantage in certain buildings where the existing electrical infrastructure limits the options.\u003c\/p\u003e\n\u003cp\u003eThis obviously does not mean that a 115 V appliance can be plugged into just any wall outlet. A \u003cstrong\u003eprofessional HVAC installation\u003c\/strong\u003e must always comply with the manufacturer's electrical specifications, the applicable Code, the required protections, and installation requirements.\u003c\/p\u003e\n\u003cp\u003eHere, YORK specifies a \u003cstrong\u003eminimum circuit ampacity of 12 A\u003c\/strong\u003e and a maximum protection of \u003cstrong\u003e20 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn an older \u003cstrong\u003eMontreal\u003c\/strong\u003e duplex, a condo, a small \u003cstrong\u003eLaval\u003c\/strong\u003e apartment, or a room added on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, this feature can nevertheless avoid a more complex 240 V configuration when the building conditions permit.\u003c\/p\u003e\n\u003cp\u003eThis is exactly the kind of detail we check before recommending a model: a voltage difference that may seem minor on a specification sheet can have a direct impact on feasibility, cost, and the simplicity of the installation.\u003c\/p\u003e\n\u003ch3\u003e9,000 BTU: a capacity to size according to the room, not solely according to square footage\u003c\/h3\u003e\n\u003cp\u003eA common mistake is to automatically associate a 9,000 BTU capacity with a specific number of square feet.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we avoid this shortcut.\u003c\/p\u003e\n\u003cp\u003eTwo rooms of the same size can have completely different heating and cooling loads. We examine in particular:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003einsulation quality;\u003c\/li\u003e\n\u003cli\u003ethe number and size of windows;\u003c\/li\u003e\n\u003cli\u003esolar orientation;\u003c\/li\u003e\n\u003cli\u003ethe floor of the dwelling;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003eexposure of exterior walls;\u003c\/li\u003e\n\u003cli\u003ethe number of occupants;\u003c\/li\u003e\n\u003cli\u003eheat-generating equipment;\u003c\/li\u003e\n\u003cli\u003eair circulation to adjacent rooms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA properly sized 9,000 BTU unit can maintain a very stable temperature. The same unit installed in a room with a higher thermal load than its capacity may run continuously without achieving the desired comfort.\u003c\/p\u003e\n\u003cp\u003eThe opposite is not better: an oversized heat pump may reach its setpoint quickly but may not run long enough under certain conditions to provide the best possible dehumidification.\u003c\/p\u003e\n\u003ch3\u003eInverter modulation significantly changes how a 9,000 BTU unit operates\u003c\/h3\u003e\n\u003cp\u003eThe stated minimum cooling capacity of \u003cstrong\u003e2,764 BTU\/h\u003c\/strong\u003e is particularly noteworthy.\u003c\/p\u003e\n\u003cp\u003eSuppose a bedroom or small living room requires high capacity during a very hot day, followed by much less cooling in the evening. Instead of operating only at full capacity before shutting off, the unit can reduce its output.\u003c\/p\u003e\n\u003cp\u003eThe same principle applies to heating, since YORK indicates modulation ranging from \u003cstrong\u003e2,081 to 13,989 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis wide range helps limit repeated starts and stops when only a small amount of capacity is needed to maintain the setpoint.\u003c\/p\u003e\n\u003cp\u003eThis is one of the factors we consider when comparing an inverter heat pump with an older wall- or window-mounted air conditioner that operates mainly in on\/off mode.\u003c\/p\u003e\n\u003ch3\u003eIndoor operation as quiet as 26 dB(A)\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit offers four published airflow levels: approximately \u003cstrong\u003e400, 288, 241, and 171 CFM\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe sound pressure level varies accordingly between \u003cstrong\u003e43, 38, 32, and 26 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a bedroom, home office, or small living room, this minimum value of \u003cstrong\u003e26 dB(A)\u003c\/strong\u003e is significant. It does not mean that the unit always operates at 26 dB(A), since the fan and compressor adjust to the demand. However, it indicates that at low fan speed, indoor operation can be very quiet.\u003c\/p\u003e\n\u003cp\u003eWe also pay attention to where the unit is installed. Even a quiet system becomes less comfortable if the air is directed straight at the bed, a workstation, or the sofa.\u003c\/p\u003e\n\u003cp\u003eA good installation is therefore not just about finding enough space on the wall. The actual path of the airflow must also be considered.\u003c\/p\u003e\n\u003ch3\u003eA compact unit that makes installation easier in small rooms\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately \u003cstrong\u003e33 in. wide, 11 in. deep, and 8 in. high\u003c\/strong\u003e. The outdoor unit is also relatively compact, measuring approximately \u003cstrong\u003e33 × 21 × 12.5 in.\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn some properties in \u003cstrong\u003eLongueuil\u003c\/strong\u003e, Montréal, or Laval, we have to work around short walls, high windows, closets, existing pipes, or façade constraints. These dimensions are therefore useful as early as the estimation stage.\u003c\/p\u003e\n\u003cp\u003eWe want to leave enough space around the indoor unit to allow proper air intake and make \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e accessible. Outdoors, we must also respect the clearances required for air circulation, servicing, and winter operation.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -20 °C: information that must be interpreted correctly\u003c\/h3\u003e\n\u003cp\u003eYORK indicates a heating operating range of \u003cstrong\u003e-4 °F to 75 °F\u003c\/strong\u003e, or approximately \u003cstrong\u003e-20 °C to 24 °C\u003c\/strong\u003e, for the DHX09CSB11S. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis means that the unit is designed to be able to operate down to this minimum outdoor temperature.\u003c\/p\u003e\n\u003cp\u003eHowever, the \u003cstrong\u003eminimum operating temperature\u003c\/strong\u003e should not be confused with \u003cstrong\u003efull capacity guaranteed at -20 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe documentation provided lists the nominal capacities and modulation ranges, but it does not publish a complete capacity curve at every outdoor temperature for the 115 V model in this table.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specifications also indicate values of \u003cstrong\u003e8,400 BTU at -8 °C\u003c\/strong\u003e and \u003cstrong\u003e8,700 BTU at -15 °C\u003c\/strong\u003e for this combination. For a homeowner planning to use the unit primarily as a heating source during the Quebec winter, we nevertheless recommend analyzing the building’s heating load and comparing the model with newer cold-climate heat pumps when very-low-temperature heating is the absolute priority.\u003c\/p\u003e\n\u003ch3\u003e23 SEER, but be careful not to confuse it with 23 SEER2\u003c\/h3\u003e\n\u003cp\u003eThe YORK brochure dates from 2020 and uses the older \u003cstrong\u003eSEER, EER, and HSPF\u003c\/strong\u003e metrics.\u003c\/p\u003e\n\u003cp\u003eFor this model, the published values are:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e23 SEER, 13 EER, and 10.5 HSPF.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt is important not to automatically present this rating as \u003cstrong\u003e23 SEER2\u003c\/strong\u003e. The SEER2 testing procedures introduced later are not identical to those used for the older SEER ratings.\u003c\/p\u003e\n\u003cp\u003eFor this reason, when comparing it with a modern heat pump advertised at 20 or 22 SEER2, data established using the same methods must be compared before concluding that one unit is more efficient than another.\u003c\/p\u003e\n\u003cp\u003eThis technical distinction helps avoid a common error in HVAC product comparisons.\u003c\/p\u003e\n\u003ch2\u003eWhat we look at at AirGreen before installing this YORK X Series system in Montréal, Laval, Longueuil, the North Shore, or the South Shore\u003c\/h2\u003e\n\u003ch3\u003e1\/4 in. – 3\/8 in. piping is a critical point when replacing a system\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHX09CSB11S\u003c\/strong\u003e uses a \u003cstrong\u003e1\/4 in.\u003c\/strong\u003e liquid connection and a \u003cstrong\u003e3\/8 in.\u003c\/strong\u003e gas connection. The published maximum length is \u003cstrong\u003e49.2 ft\u003c\/strong\u003e, with a maximum elevation difference of \u003cstrong\u003e33 ft\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWhen replacing an old heat pump, we never assume that the existing lines can automatically be reused.\u003c\/p\u003e\n\u003cp\u003eWe verify:\u003c\/p\u003e\n\u003ch4\u003eThe actual line diameter\u003c\/h4\u003e\n\u003cp\u003eA refrigerant line whose diameter does not meet the manufacturer's requirements can compromise system operation.\u003c\/p\u003e\n\u003ch4\u003eThe condition of the copper\u003c\/h4\u003e\n\u003cp\u003eA crushed, contaminated, poorly insulated line or one with questionable connections must be corrected.\u003c\/p\u003e\n\u003ch4\u003eThe total length\u003c\/h4\u003e\n\u003cp\u003eWhen the outdoor unit is located at the other end of the building, the \u003cstrong\u003e49.2-foot maximum\u003c\/strong\u003e becomes a real design constraint.\u003c\/p\u003e\n\u003ch4\u003eThe drain path\u003c\/h4\u003e\n\u003cp\u003eThe condensate must be properly drained. An inadequate slope can cause water to accumulate or require a condensate pump.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi is available, but it is not included as standard\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDRCPX\u003c\/strong\u003e remote control is included with the X Series. YORK also offers control through the \u003cstrong\u003eEWPE Smart\u003c\/strong\u003e app, but P and X models require the \u003cstrong\u003eCS532AH\u003c\/strong\u003e adapter to enable Wi-Fi connectivity. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis distinction should be clearly explained at the time of purchase.\u003c\/p\u003e\n\u003cp\u003eA customer who plans to use only the remote control does not necessarily need this option. However, Wi-Fi can be useful for a cottage, rental property, office, or simply for adjusting the temperature remotely.\u003c\/p\u003e\n\u003ch3\u003eSmart defrosting and outdoor construction suited to regular use\u003c\/h3\u003e\n\u003cp\u003eFor the X Series, YORK highlights a \u003cstrong\u003eheavy-gauge steel chassis\u003c\/strong\u003e, a \u003cstrong\u003ecorrosion-resistant coating\u003c\/strong\u003e, quiet operation, and demand-based defrosting rather than a rigid cycle. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn winter, defrosting is essential for a heat pump. When the outdoor heat exchanger accumulates frost, the system must periodically remove it to maintain efficient heat exchange.\u003c\/p\u003e\n\u003cp\u003eDefrosting triggered when necessary is intended to limit unnecessary cycles, helping reduce the energy losses associated with this operation.\u003c\/p\u003e\n\u003ch3\u003eWarranty: verify registration rather than relying solely on the number of years displayed\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing indicates a \u003cstrong\u003e10-year compressor, 10-year parts, 0-year labor\u003c\/strong\u003e warranty for this system, with the possibility of an additional warranty.\u003c\/p\u003e\n\u003cp\u003eThe YORK brochure for this generation nevertheless states that the published standard warranty was \u003cstrong\u003e7 years on the compressor and 5 years on parts\u003c\/strong\u003e, while residential registration of the system allowed an extension to \u003cstrong\u003e10 years on the compressor and 10 years on parts\u003c\/strong\u003e. A separate labor warranty program was also presented. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWhen installing or purchasing equipment from older inventory, we therefore recommend confirming eligibility, the installation date, registration, and the warranty terms applicable to the specific serial number.\u003c\/p\u003e\n\u003ch3\u003eA Scenario Where This Model Makes Perfect Sense\u003c\/h3\u003e\n\u003cp\u003eA typical example would be a small independent zone in a property without ductwork: a primary bedroom located far from the central system, a finished office, a small apartment, a home extension, or a space where an old window air conditioner needs to be replaced.\u003c\/p\u003e\n\u003cp\u003eFor this type of project, 9,000 BTU can make much more sense than an 18,000 BTU unit chosen “for safety.”\u003c\/p\u003e\n\u003cp\u003eThe right approach is to calculate the actual need and take advantage of the system’s modulation capacity.\u003c\/p\u003e\n\u003cp\u003eWe prefer to install \u003cstrong\u003ethe right capacity in the right location\u003c\/strong\u003e rather than compensate for poor air distribution with more BTUs.\u003c\/p\u003e\n\u003ch3\u003eWho Do We Primarily Recommend the YORK X Series 9000 BTU 115V to?\u003c\/h3\u003e\n\u003cp\u003eThis system is particularly suitable for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea small, well-defined residential zone;\u003c\/li\u003e\n\u003cli\u003ea bedroom or office where noise level is important;\u003c\/li\u003e\n\u003cli\u003ea property where a \u003cstrong\u003e115 V\u003c\/strong\u003e power supply is an advantage;\u003c\/li\u003e\n\u003cli\u003ea building without ductwork;\u003c\/li\u003e\n\u003cli\u003ea renovation where minimizing work is a priority;\u003c\/li\u003e\n\u003cli\u003ean installation where the refrigerant line run remains within the manufacturer’s limit;\u003c\/li\u003e\n\u003cli\u003ea homeowner seeking an inverter heat pump offering high seasonal efficiency for its generation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is less suitable when several closed bedrooms must be heated from a single unit, when the actual thermal load exceeds 9,000 BTU, or when the project primarily requires cold-climate performance and the certifications of current-generation heat pumps.\u003c\/p\u003e\n\u003ch3\u003eWhy Entrust Sizing and Installation to AirGreen\u003c\/h3\u003e\n\u003cp\u003eA proper \u003cstrong\u003ewall-mounted heat pump installation in Montreal, Laval, Longueuil, the North Shore, or the South Shore\u003c\/strong\u003e involves more than mounting two units and connecting two pipes.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we analyze the project as a whole: capacity, electrical supply, indoor location, outdoor clearances, noise, drainage, piping, future maintenance accessibility, and the system’s expected performance in both heating and cooling modes.\u003c\/p\u003e\n\u003cp\u003eFor a compact unit such as the \u003cstrong\u003eYORK X Series 23 SEER 9000 BTU 115V\u003c\/strong\u003e, this preparation allows you to truly benefit from its advantages: low minimum capacity, quiet indoor operation, compact design, and 115 V power supply.\u003c\/p\u003e\n\u003ch3\u003eRequest Your AirGreen Quote\u003c\/h3\u003e\n\u003cp\u003eTo determine whether the \u003cstrong\u003eYORK X Series 23 SEER Mini Split | 9000 BTU 115V\u003c\/strong\u003e, models \u003cstrong\u003eDHX09NWB11S \/ DHX09CSB11S\u003c\/strong\u003e, is suitable for your property, contact \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWe can assess your space, check the electrical requirements, and compare this YORK with other wall-mounted solutions suited to your project in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, the South Shore, and Montérégie\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePhone: 514-316-2973\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eEmail: \u003ca class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003esales@airgreen.ca\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120414306596,"sku":"DHX09CSB11S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_MINI_SPLIT_YORK_SERIE_X_9000_BTU_115V_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_44db7dba-bd8f-4f87-ad4e-a5d418e8ac72.png?v=1789425740"},{"product_id":"mini-split-york-serie-x-23-seer-12000-btu-115v","title":"YORK X Series Mini Split 23 SEER | 12000 BTU 115V","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 115 V wall-mounted heat pump distinguished primarily by its modulation, efficiency, and ease of integration\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYORK X Series 23 SEER Mini Split | 12,000 BTU 115V\u003c\/strong\u003e meets a fairly specific need in the residential HVAC market: obtaining a \u003cstrong\u003e12,000 BTU\u003c\/strong\u003e inverter wall-mounted heat pump without necessarily switching to a 208\/230 V power supply. This configuration can be particularly attractive for certain homes, condominiums, additions, and small commercial spaces in the \u003cstrong\u003eGreater Montreal Area\u003c\/strong\u003e, provided that the available electrical circuit and the building's heating and cooling load are genuinely compatible with the unit.\u003c\/p\u003e\n\u003cp\u003eThe system examined here consists of the \u003cstrong\u003eDHX12NWB11S\u003c\/strong\u003e indoor unit and the \u003cstrong\u003eDHX12CSB11S\u003c\/strong\u003e outdoor unit. YORK officially classifies this combination in its \u003cstrong\u003eX Series\u003c\/strong\u003e, a family of high-efficiency wall-mounted heat pumps offered in 115 V and 208\/230 V configurations depending on capacity. The YORK brochure confirms that the 12K 115 V model uses this exact indoor\/outdoor pair. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we believe that a 12,000 BTU unit should be selected based on the actual building rather than a simple rule based on square footage. In \u003cstrong\u003eMontreal\u003c\/strong\u003e, an older apartment with masonry walls, air infiltration, and large windows may have a very different load from a newer condo in \u003cstrong\u003eLaval\u003c\/strong\u003e. In \u003cstrong\u003eLongueuil\u003c\/strong\u003e, on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, or on the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e, solar orientation, floor level, ceiling height, and room layout also influence the result.\u003c\/p\u003e\n\u003ch3\u003e“X Series 23 SEER” does not mean that this specific model is rated at 23 SEER\u003c\/h3\u003e\n\u003cp\u003eThis distinction deserves to be explained clearly.\u003c\/p\u003e\n\u003cp\u003eYORK presents the family as the \u003cstrong\u003eX Series up to 23 SEER\u003c\/strong\u003e. The catalog indeed states “X Series – Up to 23 SEER.” \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, for the specific \u003cstrong\u003eDHX12NWB11S \/ DHX12CSB11S combination at 115 V\u003c\/strong\u003e, the manufacturer's technical table indicates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e of rated cooling capacity;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12,200 BTU\/h\u003c\/strong\u003e of rated heating capacity;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e22 SEER\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12.5 EER\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10.2 HSPF\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 23 SEER therefore corresponds to the maximum efficiency achieved by certain models in the X Series, notably the 9,000 BTU 115 V model, while the \u003cstrong\u003e12,000 BTU 115 V is rated at 22 SEER in the YORK brochure\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a buyer comparing several wall-mounted heat pumps, this distinction is important. We always recommend comparing the exact combination of indoor and outdoor models rather than relying solely on the general series name.\u003c\/p\u003e\n\u003cp\u003eThe data should also not be converted into SEER2 values. The documentation for this generation uses the older \u003cstrong\u003eSEER, EER, and HSPF\u003c\/strong\u003e ratings, not the newer SEER2, EER2, and HSPF2 ratings.\u003c\/p\u003e\n\u003ch3\u003eA 12,000 BTU capacity that can modulate well beyond the nominal rating\u003c\/h3\u003e\n\u003cp\u003eInverter operation is one of the most interesting features of this YORK X Series.\u003c\/p\u003e\n\u003cp\u003eIts rated cooling capacity is \u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e, but its compressor can modulate from \u003cstrong\u003e3,514 to 14,569 BTU\/h\u003c\/strong\u003e. In heating, the rated capacity is \u003cstrong\u003e12,200 BTU\/h\u003c\/strong\u003e, with a published range of \u003cstrong\u003e2,764 to 16,582 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation range explains the heat pump’s actual behavior much better than a simple 12,000 BTU figure.\u003c\/p\u003e\n\u003cp\u003eWhen a home approaches its setpoint temperature, the system does not need to continuously operate at maximum capacity. It can reduce its output, promoting longer and more stable operating periods.\u003c\/p\u003e\n\u003cp\u003eIn a properly sized installation, this can help:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ereduce temperature fluctuations;\u003c\/li\u003e\n\u003cli\u003elimit repeated starts and stops;\u003c\/li\u003e\n\u003cli\u003eimprove dehumidification in summer;\u003c\/li\u003e\n\u003cli\u003ereduce abrupt changes in noise;\u003c\/li\u003e\n\u003cli\u003emaintain more consistent comfort.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eConversely, installing a 12,000 BTU unit in a space whose actual load is far too low can limit the benefits of this modulation. Even an inverter system has a minimum capacity, here approximately \u003cstrong\u003e3,514 BTU\/h in cooling\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhy a 115 V power supply can be advantageous\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHX12CSB11S operates at 115 V, single-phase, 60 Hz\u003c\/strong\u003e. The brochure indicates a rated current of \u003cstrong\u003e8.8 A\u003c\/strong\u003e in cooling and also \u003cstrong\u003e8.8 A\u003c\/strong\u003e in heating. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor some properties, this feature can make the project easier compared with a heat pump requiring a 208\/230 V power supply.\u003c\/p\u003e\n\u003cp\u003eHowever, this does not mean that the unit can be plugged into just any existing wall outlet.\u003c\/p\u003e\n\u003cp\u003eYORK specifies the following for this combination:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMCA: 15 A\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eMOCP: 25 A\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMCA corresponds to the minimum circuit ampacity, while MOCP represents the maximum overcurrent protection permitted by the manufacturer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore always check the available power supply before installation. In older buildings in \u003cstrong\u003eMontréal\u003c\/strong\u003e, for example, seeing a 115 V outlet nearby is absolutely not enough to confirm that the circuit is suitable for the heat pump.\u003c\/p\u003e\n\u003cp\u003eThe power supply, conductor gauge, protection, and connection must comply with applicable electrical requirements.\u003c\/p\u003e\n\u003ch3\u003eFour airflow rates: 400, 288, 241, and 171 CFM\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit \u003cstrong\u003eDHX12NWB11S\u003c\/strong\u003e offers four airflow rates published by YORK:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e400 \/ 288 \/ 241 \/ 171 CFM\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe sound pressure level varies simultaneously between \u003cstrong\u003e45 \/ 40 \/ 34 \/ 28 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis helps clarify what “quiet operation” really means.\u003c\/p\u003e\n\u003cp\u003eAt low speed, the manufacturer specifies \u003cstrong\u003e28 dB(A)\u003c\/strong\u003e. When the load increases and the unit must move up to 400 CFM, the sound level rises to 45 dB(A). It is therefore normal for a heat pump to be more noticeable when it needs to quickly recover several degrees of temperature.\u003c\/p\u003e\n\u003cp\u003eFor a living room or living space, this range is generally much more useful to know than a single decibel figure presented without context.\u003c\/p\u003e\n\u003ch3\u003eA compact 33 × 11 × 8-inch wall-mounted unit\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures \u003cstrong\u003e33 × 11 × 8 in\u003c\/strong\u003e, or approximately \u003cstrong\u003e845 × 289 × 209 mm\u003c\/strong\u003e. YORK also indicates a net weight of approximately 23 lb. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis 33-inch width makes it easier to integrate into many residential configurations, but the chosen location must still meet several requirements.\u003c\/p\u003e\n\u003cp\u003eDuring our HVAC estimates in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, and the South Shore\u003c\/strong\u003e, we examine in particular:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe clearance above the unit;\u003c\/li\u003e\n\u003cli\u003ethe proximity of side walls;\u003c\/li\u003e\n\u003cli\u003ethe presence of doors or windows;\u003c\/li\u003e\n\u003cli\u003ethe location of tall furniture;\u003c\/li\u003e\n\u003cli\u003ethe path of the airflow;\u003c\/li\u003e\n\u003cli\u003ethe possible routing of the refrigerant lines;\u003c\/li\u003e\n\u003cli\u003ethe condensate drain slope;\u003c\/li\u003e\n\u003cli\u003efuture access to the filters and components for \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe best location is therefore not systematically the wall closest to the outdoor unit.\u003c\/p\u003e\n\u003ch3\u003eWell-directed airflow is better than poorly distributed capacity\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate automatic control of the vertical and horizontal louvers. The X Series documentation also presents air-direction control functions and control options for managing louver positioning. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn practice, the positioning of the wall-mounted unit remains decisive.\u003c\/p\u003e\n\u003cp\u003eA scenario we frequently encounter is wanting to install the unit at the far end of a living room, hoping it will also cool two closed bedrooms located behind a hallway. Even with 12,000 BTU available, air does not travel effectively through walls and closed doors.\u003c\/p\u003e\n\u003cp\u003eWe therefore prefer to explain from the outset what a single-zone wall-mounted heat pump can realistically serve. When the home’s layout includes several rooms isolated from one another, a different configuration or a multi-zone system may make more sense.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -20 °C: what this value really means\u003c\/h3\u003e\n\u003cp\u003eYORK publishes a heating operating range of \u003cstrong\u003e-20 °C to 24 °C\u003c\/strong\u003e for the DHX12CSB11S. In cooling mode, the published range is \u003cstrong\u003e-18 °C to 46 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis heat pump can therefore continue operating at significant winter temperatures.\u003c\/p\u003e\n\u003cp\u003eHowever, two concepts must be distinguished:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eminimum operating temperature\u003c\/strong\u003e and \u003cstrong\u003eheating capacity available at that temperature\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe fact that a heat pump is rated to operate at -20 °C does not mean that it retains its nominal 12,200 BTU capacity at -20 °C.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen data sheet currently indicates approximately \u003cstrong\u003e9,800 BTU at -8 °C\u003c\/strong\u003e and \u003cstrong\u003e8,600 BTU at -15 °C\u003c\/strong\u003e. These values are useful for understanding the gradual decrease in capacity as the outdoor temperature drops.\u003c\/p\u003e\n\u003cp\u003eThis is exactly the kind of data we consider when a homeowner wants to use their heat pump as a significant source of heating during the Quebec winter.\u003c\/p\u003e\n\u003ch3\u003eA published maximum heating capacity of 16,582 BTU\/h\u003c\/h3\u003e\n\u003cp\u003eThe YORK table indicates a modulating heating capacity of up to \u003cstrong\u003e16,582 BTU\/h\u003c\/strong\u003e under certain operating conditions. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis maximum value should not be interpreted as a guaranteed capacity at -20 °C. It represents the system’s upper modulation limit under conditions in which the equipment can produce it.\u003c\/p\u003e\n\u003cp\u003eThis is another reason why we avoid shortcuts such as “12,000 BTU always means 12,000 BTU.”\u003c\/p\u003e\n\u003cp\u003eA heat pump continuously adjusts its output based on indoor and outdoor temperatures, compressor speed, and heating demand.\u003c\/p\u003e\n\u003ch3\u003eSmart defrost: particularly important in heating mode\u003c\/h3\u003e\n\u003cp\u003eThe X Series uses a defrost system that operates as needed rather than simply applying a fixed cycle without taking conditions into account.\u003c\/p\u003e\n\u003cp\u003eYORK indicates that this strategy helps reduce the energy consumption associated with unnecessary defrost cycles. The brochure also presents a construction featuring a sturdy steel chassis, a corrosion-resistant coating, quiet operation, and indoor temperature display on the indoor unit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn humid, cold climates, this function is particularly relevant. When the outdoor heat exchanger operates in heating mode, frost may gradually form. The system must then temporarily reverse its cycle to defrost the heat exchanger.\u003c\/p\u003e\n\u003cp\u003eAn occasional defrost cycle is therefore normal. It does not automatically indicate an operating problem.\u003c\/p\u003e\n\u003ch2\u003ePiping, noise, Wi-Fi, and installation: details to check before choosing this YORK X Series\u003c\/h2\u003e\n\u003ch3\u003eRefrigerant piping 1\/4 in – 1\/2 in\u003c\/h3\u003e\n\u003cp\u003eFor the \u003cstrong\u003eDHX12CSB11S\u003c\/strong\u003e, YORK specifies:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eliquid: 1\/4 in\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003egas: 1\/2 in\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003edrain: 5\/8 in\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1\/2 in gas-pipe diameter is particularly important when replacing an older heat pump.\u003c\/p\u003e\n\u003cp\u003eA homeowner may wish to keep the lines already in the wall. This solution is acceptable only if the pipe diameters, condition of the lines, and installation conditions are compatible with the new unit.\u003c\/p\u003e\n\u003cp\u003eWe never recommend selecting a heat pump simply because “the pipes are already there.” Incompatible piping can turn an apparently simple replacement into a technically incorrect installation.\u003c\/p\u003e\n\u003ch3\u003eUp to 65.5 feet of refrigerant piping\u003c\/h3\u003e\n\u003cp\u003eYORK allows a maximum total length of \u003cstrong\u003e65.5 ft, or approximately 20 m\u003c\/strong\u003e, for this combination, with a maximum height difference of \u003cstrong\u003e33 ft, or approximately 10 m\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis provides useful flexibility for multistory homes, condos, or buildings where the outdoor unit cannot be placed directly behind the indoor unit.\u003c\/p\u003e\n\u003cp\u003eWe must nevertheless plan the route carefully. The more complex the route becomes, the more we need to consider the building layout, drainage, the appearance of line-set covers, and the manufacturer’s recommendations.\u003c\/p\u003e\n\u003ch3\u003eOutdoor unit: 33 × 21 × 12.5 inches and 53 dB(A)\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHX12CSB11S\u003c\/strong\u003e outdoor unit measures approximately \u003cstrong\u003e33 × 21 × 12.5 in\u003c\/strong\u003e according to the YORK table, with an advertised sound pressure level of \u003cstrong\u003e53 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIts relatively compact size is helpful for properties with limited outdoor space.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eMontréal\u003c\/strong\u003e and in certain densely built areas of \u003cstrong\u003eLongueuil or Laval\u003c\/strong\u003e, we pay particular attention to the outdoor unit’s location. Installation near a bedroom, a neighboring window, or in a narrow passageway can amplify the perceived noise.\u003c\/p\u003e\n\u003cp\u003eOn the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e and the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e, available space is sometimes more generous, but we must always consider snow, water runoff during defrosting, and access to components for future service calls.\u003c\/p\u003e\n\u003ch3\u003eR-410A refrigerant\u003c\/h3\u003e\n\u003cp\u003eThis YORK X Series generation uses \u003cstrong\u003eR-410A\u003c\/strong\u003e. The factory charge indicated for the 12,000 BTU 115 V model is \u003cstrong\u003e47.61 oz, or approximately 1.4 kg\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis information is important for future service, particularly since newer generations of HVAC equipment now also use other refrigerants.\u003c\/p\u003e\n\u003cp\u003eWhen a technician services an older unit, the exact model and refrigerant type must be identified before any work is performed on the refrigeration circuit.\u003c\/p\u003e\n\u003ch3\u003eOptional Wi-Fi with the CS532AH adapter\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDRCPX wireless remote control is included as standard\u003c\/strong\u003e with the X Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWi-Fi, however, requires the \u003cstrong\u003eCS532AH adapter\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eYORK indicates that the \u003cstrong\u003eEWPE Smart App\u003c\/strong\u003e then allows the P, X, and Z Series to be controlled from a smartphone or tablet, and confirms that the CS532AH adapter is required for the P and X Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTherefore, three elements must be clearly distinguished:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe standard infrared remote control;\u003c\/li\u003e\n\u003cli\u003eoptional wall-mounted controllers;\u003c\/li\u003e\n\u003cli\u003eWi-Fi control by phone, which requires the appropriate adapter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWired controllers are also available\u003c\/h3\u003e\n\u003cp\u003eThe X Series is not limited to the included remote control.\u003c\/p\u003e\n\u003cp\u003eThe YORK catalog notably lists the \u003cstrong\u003eDWCPX2\u003c\/strong\u003e wall-mounted controller for the P and X Series. It allows several settings to be managed, including the temperature, operating mode, timer, louver position, turbo mode, and temperature scheduling. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis option may be relevant in an office, a small business, or simply for a homeowner who prefers a fixed wall-mounted controller rather than a remote control.\u003c\/p\u003e\n\u003ch3\u003eCompatible YORK filters and accessories\u003c\/h3\u003e\n\u003cp\u003eThe brochure also lists several accessories for the P, X, and Z Series, including \u003cstrong\u003ephotocatalytic filters and activated carbon filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eYORK also offers a wall-mounted controller for the DRCPX remote control and drainage piping accessories. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis type of detail is useful during a replacement or maintenance visit because it allows accessories to be ordered by part number rather than by approximation.\u003c\/p\u003e\n\u003ch3\u003eWarranty: Registration matters\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product page currently presents the warranty as \u003cstrong\u003e10 years on the compressor, 10 years on parts, 0 years on labor\u003c\/strong\u003e, with the possibility of additional coverage.\u003c\/p\u003e\n\u003cp\u003eThe 2020 YORK brochure specifies that the published standard warranty was \u003cstrong\u003e7 years on the compressor and 5 years on parts\u003c\/strong\u003e, but that residential registration could extend this coverage to \u003cstrong\u003e10 years on the compressor and 10 years on parts\u003c\/strong\u003e. Ten years of labor protection was also offered with the purchase of the applicable option. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore consider system registration an important step after installation. Excellent equipment loses some of its value if the necessary steps to obtain the best available coverage are not completed correctly.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR and subsidies: verify the exact combination\u003c\/h3\u003e\n\u003cp\u003eAirGreen’s current product sheet presents this combination as \u003cstrong\u003enon-ENERGY STAR and non-ENERGY STAR Cold Climate\u003c\/strong\u003e, with AHRI number \u003cstrong\u003e8578565\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe YORK brochure, for its part, presents the X Series as a high-efficiency family and displays the ENERGY STAR logo in its documentation, but in the 12K 115 V model table it does not provide a sufficiently explicit line to confirm on its own that this combination is currently eligible for a subsidy program.\u003c\/p\u003e\n\u003cp\u003eFor this reason, we do not recommend assuming that a unit is eligible for \u003cstrong\u003eLogisVert\u003c\/strong\u003e simply because a general series has a certification or because an old brochure displays a logo.\u003c\/p\u003e\n\u003cp\u003eEligibility must be confirmed based on the \u003cstrong\u003eexact AHRI combination and the program rules in effect at the time of purchase\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eThe typical case in which the 12,000 BTU 115 V becomes particularly attractive\u003c\/h3\u003e\n\u003cp\u003eLet’s consider a common scenario during an AirGreen estimate: a homeowner has an open-concept living room and dining room with a reasonable floor area, but their electrical panel or configuration makes adding a new 240 V circuit more complicated.\u003c\/p\u003e\n\u003cp\u003eA 115 V heat pump may then seem immediately ideal.\u003c\/p\u003e\n\u003cp\u003eHowever, we check three things before recommending it:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003ethe actual thermal load of the area\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ethe capacity of the available electrical circuit\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ethe possible distribution of air throughout the rooms\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eIf these three factors are favorable, the \u003cstrong\u003eYORK X Series 12,000 BTU 115 V\u003c\/strong\u003e may be a very suitable solution.\u003c\/p\u003e\n\u003cp\u003eIf the customer instead wants to heat several enclosed rooms, if the low-temperature load exceeds the unit’s capacity, or if the existing power supply is unsuitable, we propose a different configuration.\u003c\/p\u003e\n\u003cp\u003eIt is precisely this selection process that makes the difference between buying a heat pump and obtaining an \u003cstrong\u003eHVAC installation properly suited to the building\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eMaintenance: four elements that directly affect performance\u003c\/h3\u003e\n\u003cp\u003eTo maintain good airflow and limit performance problems, we recommend paying particular attention to four elements:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eclean the indoor unit’s filters regularly\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ekeep the outdoor coil free of leaves, dust, excessive ice, and debris;\u003c\/li\u003e\n\u003cli\u003edo not block the air intake or outlet of the wall-mounted indoor unit;\u003c\/li\u003e\n\u003cli\u003ehave the unit inspected when an abnormal drop in capacity, unusual noise, or water leak occurs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA heat pump with heavily clogged filters may experience a significant reduction in airflow. On a unit designed to provide up to \u003cstrong\u003e400 CFM\u003c\/strong\u003e, this restriction can result in less even distribution and longer operating times.\u003c\/p\u003e\n\u003ch3\u003eWhy we place so much importance on proper sizing\u003c\/h3\u003e\n\u003cp\u003eYORK explains in its documentation that its mini-split systems use inverter technology to modulate the refrigerant flow according to the zone’s exact demand. The manufacturer also emphasizes that this modulation helps maintain the temperature within a narrower range. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBut no inverter technology can replace proper sizing.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we assess the building, room layout, insulation, windows, sun exposure, electrical system, piping, and outdoor location before finalizing a recommendation.\u003c\/p\u003e\n\u003cp\u003eFor this YORK X Series, the main advantage is therefore not only its \u003cstrong\u003e12,000 BTU\u003c\/strong\u003e, \u003cstrong\u003e115 V\u003c\/strong\u003e power supply, or high efficiency. It is the combination of these features when they genuinely match the project.\u003c\/p\u003e\n\u003cp\u003eThe brochure used to document this generation is a YORK\/Johnson Controls publication from \u003cstrong\u003eNovember 2020\u003c\/strong\u003e, which also confirms the importance of checking the exact model number when an appliance is replaced or when a unit from older inventory is installed. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor a quote, capacity assessment, or installation of the YORK X Series 12,000 BTU 115V Mini-Split, contact AirGreen. We serve Montreal, Laval, Longueuil, the North Shore, and the South Shore, and we can compare this unit with other wall-mounted heat pumps to select a solution suited to your building, electrical supply, and heating and cooling needs.\u003c\/strong\u003e\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120414339364,"sku":"DHX12CSB11S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_MINI_SPLIT_YORK_SERIE_X_12000_BTU_115V_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_b75acc60-6fca-475a-9ab7-ca3bdc6d231a.png?v=1789426029"},{"product_id":"mini-split-york-serie-x-23-seer-9000-btu-220v","title":"YORK X Series Mini Split 23 SEER | 9000 BTU 220V","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA compact 9,000 BTU mini-split focused on efficiency, modulation, and operation down to -20 °C\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eFor a bedroom, office, condo, small apartment, or enclosed room with a relatively moderate heating and cooling load, installing an oversized heat pump can be just as problematic as installing an undersized unit. The \u003cstrong\u003eYORK X Series 9,000 BTU 220 V\u003c\/strong\u003e falls into an interesting category: compact wall-mounted mini-splits capable of providing suitable capacity for smaller spaces while maintaining Inverter modulation, high seasonal efficiency, and a heating function that remains usable when the outdoor temperature drops below freezing.\u003c\/p\u003e\n\u003cp\u003eThe combination discussed here is specific: \u003cstrong\u003eDHX09NWB21S indoors and DHX09CSB21S outdoors\u003c\/strong\u003e. YORK identifies it in its catalog as a single-zone X Series wall-mounted heat pump in a \u003cstrong\u003e9,000 BTU\/h, 208\/230 V\u003c\/strong\u003e configuration. The same catalog presents the X Series as a range reaching up to \u003cstrong\u003e23 SEER\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, this precision regarding model numbers is essential. Two visually similar YORK wall-mounted units may have different piping, capacity, power supply, or performance specifications. Before replacing or installing a new \u003cstrong\u003ewall-mounted heat pump in Montreal, Laval, Longueuil, on the North Shore or South Shore\u003c\/strong\u003e, we therefore focus on the exact model rather than just the “9,000 BTU” figure.\u003c\/p\u003e\n\u003ch3\u003eThe technical specifications of the DHX09NWB21S \/ DHX09CSB21S\u003c\/h3\u003e\n\u003cp\u003eThe YORK technical table provides much more useful information than the sole commercial capacity indicated on the box.\u003c\/p\u003e\n\u003cp\u003eFor the \u003cstrong\u003eDHX09NWB21S \/ DHX09CSB21S\u003c\/strong\u003e configuration, the manufacturer specifies:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003erated cooling capacity: 9,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ecooling range: \u003cstrong\u003e3,099 to 9,599 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003erated heating capacity: 11,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eheating range: \u003cstrong\u003e1,911 to 12,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSEER: 23\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEER: 14.29\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHSPF: 10.5\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003epower supply: \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003erated cooling current: \u003cstrong\u003e2.8 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003erated heating current: \u003cstrong\u003e3.5 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMCA: 9 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMOCP: 15 A\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese data are those published in the performance table for the X Series 9K model at 208\/230 V. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe term “\u003cstrong\u003e220 V\u003c\/strong\u003e” commonly used to present this product should therefore be understood as a commercial simplification. YORK’s technical documentation actually specifies a \u003cstrong\u003e208\/230 V\u003c\/strong\u003e power supply.\u003c\/p\u003e\n\u003cp\u003eThis difference may seem minor to a homeowner, but it is not minor for the electrical installation. During our HVAC work, we check the available power supply, circuit, protective device, and the requirements listed on the nameplate before commissioning.\u003c\/p\u003e\n\u003ch3\u003eWhy its modulation range matters in a small room\u003c\/h3\u003e\n\u003cp\u003eInverter technology allows the compressor to avoid operating constantly according to an all-or-nothing logic.\u003c\/p\u003e\n\u003cp\u003eWith a published range that drops to approximately \u003cstrong\u003e3,099 BTU\/h in cooling\u003c\/strong\u003e, this YORK can reduce its capacity as the room approaches the desired temperature. In heating, the published range extends from \u003cstrong\u003e1,911 to 12,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is particularly relevant with a \u003cstrong\u003e9,000 BTU\u003c\/strong\u003e heat pump, since this type of system is often installed in spaces where oversizing quickly becomes noticeable.\u003c\/p\u003e\n\u003cp\u003eAn excessively oversized unit can reach the setpoint too quickly, shorten its cycles, and provide less even control of temperature and humidity. With a properly sized Inverter system, we instead look for regular operating periods at low or medium capacity.\u003c\/p\u003e\n\u003cp\u003eIn a small bedroom in \u003cstrong\u003eLongueuil\u003c\/strong\u003e, a closed office in \u003cstrong\u003eMontreal\u003c\/strong\u003e, or a condo in \u003cstrong\u003eLaval\u003c\/strong\u003e, this modulation capacity can matter more for actual comfort than an impressive maximum figure on a specification sheet.\u003c\/p\u003e\n\u003ch3\u003e9,000 BTU in cooling, but 11,000 BTU nominally in heating\u003c\/h3\u003e\n\u003cp\u003eOne detail about this X Series is worth emphasizing: YORK publishes \u003cstrong\u003e9,000 BTU\/h as the rated cooling capacity\u003c\/strong\u003e, but \u003cstrong\u003e11,000 BTU\/h in heating\u003c\/strong\u003e for this configuration. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTherefore, “9,000 BTU” should not be interpreted as a universal limit for the unit in all operating modes.\u003c\/p\u003e\n\u003cp\u003eThe published maximum heating capacity even reaches \u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e under the conditions used to create the table.\u003c\/p\u003e\n\u003cp\u003eFor a Quebec homeowner, however, this does not mean that the unit will consistently deliver 11,000 or 12,000 BTU\/h when it is -15 °C or -20 °C outside. The rated capacities and modulation ranges in the catalogue are established under test conditions defined by the manufacturer. Actual performance varies with the outdoor temperature.\u003c\/p\u003e\n\u003ch3\u003eHeating down to -20 °C: a limit that must be interpreted correctly\u003c\/h3\u003e\n\u003cp\u003eYORK provides a heating operating range of \u003cstrong\u003e-4 °F to 75 °F\u003c\/strong\u003e, or approximately \u003cstrong\u003e-20 °C to 24 °C\u003c\/strong\u003e, for the \u003cstrong\u003eDHX09CSB21S\u003c\/strong\u003e. In cooling mode, the published outdoor operating range is \u003cstrong\u003e0 °F to 115 °F\u003c\/strong\u003e, or approximately \u003cstrong\u003e-18 °C to 46 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the climate of \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e, this is particularly important information.\u003c\/p\u003e\n\u003cp\u003eAuthorized operation down to -20 °C should not be confused with a modern heat pump designation intended to maintain high capacity at -25 °C or -30 °C. The current AirGreen product sheet also indicates \u003cstrong\u003eENERGY STAR Cold Climate: No\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn other words, we can consider this YORK a heat pump that provides heating in cold weather, but we must take into account the dwelling's actual heat load and the supplementary heating system for the coldest days of the Quebec winter.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product sheet also lists heating capacities of \u003cstrong\u003e8,800 BTU at -8 °C\u003c\/strong\u003e and \u003cstrong\u003e9,000 BTU at -15 °C\u003c\/strong\u003e. However, for any consumption analysis, subsidy application, or precise sizing, we always prioritize verifying the model number and the certification data applicable to the installed system.\u003c\/p\u003e\n\u003ch3\u003eOne point to monitor: ENERGY STAR information does not fully match across the documents provided\u003c\/h3\u003e\n\u003cp\u003eThe current AirGreen product sheet indicates:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR: No\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eENERGY STAR Cold Climate: No\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, the 2020 YORK catalog contains a note indicating that \u003cstrong\u003eall models in this series shown in the table are ENERGY STAR except the 18,000 BTU DHX18NWB21S and DHX18CSB21S models\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHX09NWB21S \/ DHX09CSB21S\u003c\/strong\u003e is not one of the 18K models excluded in this note.\u003c\/p\u003e\n\u003cp\u003eThere is therefore a discrepancy between the information provided. For a decision related to \u003cstrong\u003eLogisVert\u003c\/strong\u003e, ENERGY STAR, or any other financial assistance, we never recommend relying on an old brochure or a single marketing statement. Eligibility must be confirmed using the certification applicable to the exact combination number at the time of the project.\u003c\/p\u003e\n\u003cp\u003eThis is also why no rebate amount should be assumed simply because a heat pump has a good SEER rating.\u003c\/p\u003e\n\u003ch3\u003eSEER 23, EER 14.29, and HSPF 10.5: the figures to remember from the YORK catalog\u003c\/h3\u003e\n\u003cp\u003eThe current website specification sheet contains SEER2, HSPF2, and EER2 fields whose displayed values appear clearly misformatted. For this product generation, the 2020 YORK catalog clearly provides values based on the older methodology:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSEER 23\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eEER 14.29\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eHSPF 10.5\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWe avoid automatically converting these ratings into \u003cstrong\u003eSEER2, EER2, or HSPF2\u003c\/strong\u003e, because they are different rating standards.\u003c\/p\u003e\n\u003cp\u003eFor consumers, the practical point is simple: the \u003cstrong\u003e23 SEER\u003c\/strong\u003e stated in the title does correspond to the value published by YORK for the \u003cstrong\u003e9,000 BTU 208\/230 V\u003c\/strong\u003e X Series heat pump.\u003c\/p\u003e\n\u003ch3\u003eA compact indoor unit with four airflow levels\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHX09NWB21S\u003c\/strong\u003e indoor unit measures approximately \u003cstrong\u003e33 × 11 × 8 in.\u003c\/strong\u003e, or \u003cstrong\u003e845 × 289 × 209 mm\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eYORK publishes four airflow levels:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e318 \/ 288 \/ 241 \/ 171 CFM\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand four sound pressure levels:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e43 \/ 39 \/ 35 \/ 29 dB(A)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOperation at \u003cstrong\u003e29 dB(A)\u003c\/strong\u003e at low speed is particularly relevant in a bedroom, office, or space where noise is an important consideration.\u003c\/p\u003e\n\u003cp\u003eHowever, we emphasize one point during our installations: perceived noise depends not only on the specification sheet. An appliance placed directly above the head of the bed, an improperly secured line, or an outdoor unit mounted on a structure that transmits vibrations can significantly diminish the experience.\u003c\/p\u003e\n\u003cp\u003eThe quality of the \u003cstrong\u003eHVAC installation\u003c\/strong\u003e therefore remains just as important as the published sound level.\u003c\/p\u003e\n\u003ch2\u003eInstallation of the YORK X Series 9K: what we check before mounting the unit on the wall\u003c\/h2\u003e\n\u003cp\u003eWith a small-capacity mini-split, it can be tempting to view the installation as a simple job. However, the same refrigeration, electrical, and mechanical principles apply as with a larger heat pump.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we prepare the installation by considering airflow, piping, the drain, the outdoor unit’s position, and future access for \u003cstrong\u003eheat pump maintenance\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eRefrigerant piping: 1\/4 in. and 3\/8 in.\u003c\/h3\u003e\n\u003cp\u003eFor the \u003cstrong\u003eDHX09CSB21S\u003c\/strong\u003e, YORK specifies:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eliquid: \u003cstrong\u003e1\/4 po\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003egas: \u003cstrong\u003e3\/8 po\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003edrain: \u003cstrong\u003e5\/8 po\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emaximum piping length: \u003cstrong\u003e49.2 ft \/ 15 m\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emaximum height difference: \u003cstrong\u003e33 ft \/ 10 m\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese diameters are particularly important when replacing a unit.\u003c\/p\u003e\n\u003cp\u003eWe regularly see projects where a homeowner wants to keep the pipes already installed in the wall to reduce the amount of work. This is sometimes possible, but only after verification.\u003c\/p\u003e\n\u003cp\u003eExisting piping with the wrong diameter is not automatically compatible just because it physically connects the two units. Its condition, routing, insulation and the quality of the previous installation must also be considered.\u003c\/p\u003e\n\u003cp\u003eFor this YORK 9K, the technical reference is therefore \u003cstrong\u003e1\/4 – 3\/8 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e33 × 21 × 13 in outdoor unit\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit \u003cstrong\u003eDHX09CSB21S\u003c\/strong\u003e measures approximately \u003cstrong\u003e33 × 21 × 13 in\u003c\/strong\u003e, or \u003cstrong\u003e848 × 540 × 320 mm\u003c\/strong\u003e. The published outdoor sound pressure level is \u003cstrong\u003e53 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIts relatively compact size makes several residential installations easier, but we must still maintain the required clearances.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eMontreal\u003c\/strong\u003e, \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, \u003cstrong\u003eMontérégie\u003c\/strong\u003e, on the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e or the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, we check in particular:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003espace around the outdoor coil;\u003c\/li\u003e\n\u003cli\u003eairflow;\u003c\/li\u003e\n\u003cli\u003esnow accumulation;\u003c\/li\u003e\n\u003cli\u003ewater drainage during defrost cycles;\u003c\/li\u003e\n\u003cli\u003eproximity to windows and neighbours;\u003c\/li\u003e\n\u003cli\u003epossible vibrations;\u003c\/li\u003e\n\u003cli\u003etechnician access during a future service call;\u003c\/li\u003e\n\u003cli\u003ecompliance with applicable municipal regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA compact outdoor unit does not mean that it should be installed in a confined space.\u003c\/p\u003e\n\u003ch3\u003eMCA 9 A and maximum protection 15 A\u003c\/h3\u003e\n\u003cp\u003eYORK documentation specifies a \u003cstrong\u003eminimum circuit ampacity of 9 A\u003c\/strong\u003e and \u003cstrong\u003emaximum overcurrent protection of 15 A\u003c\/strong\u003e for the 9K model at 208\/230 V. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese values are much more relevant for the installation than simply stating “220 V.”\u003c\/p\u003e\n\u003cp\u003eBefore the work begins, the electrical supply must be checked against the actual equipment and its nameplate. When replacing an old heat pump, we do not automatically assume that the existing circuit can be kept without an inspection.\u003c\/p\u003e\n\u003ch3\u003eAutomatic louvers and air distribution\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates \u003cstrong\u003eautomatic control of the vertical and horizontal louvers\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis feature is useful with a 9,000 BTU unit installed in a long room or in a space where the airflow must be directed away from the occupied area. The YORK catalog also lists air-sweep functions in its single-zone system feature table, including vertical and horizontal movement depending on the series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn practice, we mainly aim to position the unit so that this air distribution is used intelligently.\u003c\/p\u003e\n\u003cp\u003eFor example, installing the indoor unit just a few centimeters from a large cabinet and then relying on the louvers to “work around” the obstacle is not a good strategy. The best results first come from an unobstructed location that provides sufficient airflow range.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi: available, but the CS532AH adapter is required\u003c\/h3\u003e\n\u003cp\u003eWi-Fi control is not integrated as standard in the same way as it is on several newer units.\u003c\/p\u003e\n\u003cp\u003eThe YORK catalog identifies the \u003cstrong\u003eEWPE Smart\u003c\/strong\u003e app for the P, X, and Z Series and specifies that the \u003cstrong\u003eP and X Series require the CS532AH adapter\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eWi-Fi: Optional\u003c\/strong\u003e note on the AirGreen product sheet is therefore consistent with the brochure.\u003c\/p\u003e\n\u003cp\u003eOnce the appropriate option has been installed, the system can be controlled from a phone or tablet, depending on application and hardware compatibility.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eDRCPX\u003c\/strong\u003e wireless remote control is the standard controller associated with the X Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eA design focused on precision and quiet operation\u003c\/h3\u003e\n\u003cp\u003eYORK highlights several features specific to the X Series: high-efficiency Inverter technology, heavy-gauge steel construction, quiet operation, room-temperature display on the indoor unit, corrosion-resistant treatment, and demand-based defrosting to limit unnecessary energy consumption. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDefrosting deserves particular attention in Quebec.\u003c\/p\u003e\n\u003cp\u003eDuring winter heating, the outdoor coil can accumulate frost. The heat pump must then periodically reverse its operation to defrost the coil. Intelligent defrost management aims to trigger this sequence when necessary rather than according to an overly rigid cycle.\u003c\/p\u003e\n\u003cp\u003eFor the user, this helps keep the system running without manual intervention.\u003c\/p\u003e\n\u003ch3\u003eWhere is a 9,000 BTU unit generally appropriate?\u003c\/h3\u003e\n\u003cp\u003eWe never associate a capacity solely with a fixed area. Two rooms of the same size can have completely different needs.\u003c\/p\u003e\n\u003cp\u003eA bedroom with two large south-facing windows beneath a poorly insulated roof may have a higher load than an interior office of the same size. A newer condo in \u003cstrong\u003eBoucherville\u003c\/strong\u003e does not behave thermally the same way as a unit in an older building in \u003cstrong\u003eMontréal\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn our experience, a \u003cstrong\u003e9,000 BTU\u003c\/strong\u003e wall-mounted heat pump may be considered for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea good-sized bedroom;\u003c\/li\u003e\n\u003cli\u003ea home office;\u003c\/li\u003e\n\u003cli\u003ea small condo;\u003c\/li\u003e\n\u003cli\u003ea room added to a residence;\u003c\/li\u003e\n\u003cli\u003ea studio;\u003c\/li\u003e\n\u003cli\u003ea small professional space;\u003c\/li\u003e\n\u003cli\u003ean independent zone in a building that already has another heating system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe final choice must take into account insulation, windows, solar exposure, room volume, internal heat gains, and actual air circulation.\u003c\/p\u003e\n\u003ch3\u003eA common mistake: buying 12,000 BTU “to be sure”\u003c\/h3\u003e\n\u003cp\u003eIn small spaces, we often encounter the following reasoning: if 9,000 BTU seems sufficient, 12,000 BTU must necessarily be better.\u003c\/p\u003e\n\u003cp\u003eThat is not always the case.\u003c\/p\u003e\n\u003cp\u003eA properly sized unit can provide better humidity control, more uniform temperatures, and longer cycles at partial load. Inverter technology expands the operating range, but it does not make proper sizing unnecessary.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHX09\u003c\/strong\u003e has a cooling range that drops to approximately \u003cstrong\u003e3 099 BTU\/h\u003c\/strong\u003e, allowing it to modulate well below its rated capacity. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor us, the right choice is therefore not “the largest unit possible,” but the one that genuinely matches the room’s load.\u003c\/p\u003e\n\u003ch3\u003eMaintenance: a small unit can also lose a great deal of airflow\u003c\/h3\u003e\n\u003cp\u003eThis unit’s maximum airflow reaches \u003cstrong\u003e318 CFM\u003c\/strong\u003e. When the filters, evaporator, or blower wheel become clogged with dust, air circulation can deteriorate.\u003c\/p\u003e\n\u003cp\u003eThe consequences are familiar: less uniform temperatures, prolonged operation, reduced airflow, and dirt buildup inside the wall-mounted unit.\u003c\/p\u003e\n\u003cp\u003eWe recommend regularly cleaning accessible filters and having a \u003cstrong\u003ethorough wall-mounted heat pump maintenance\u003c\/strong\u003e performed when the condition of the evaporator and blower wheel warrants it.\u003c\/p\u003e\n\u003cp\u003eIn homes with pets, open kitchens, and systems used intensively during summer and winter, dirt can build up more quickly.\u003c\/p\u003e\n\u003ch3\u003eYORK warranty: why registering the system matters\u003c\/h3\u003e\n\u003cp\u003eThe 2020 YORK documentation distinguishes between two levels of warranty.\u003c\/p\u003e\n\u003cp\u003eThe standard warranty mentioned in the catalogue is \u003cstrong\u003e7 years on the compressor and 5 years on parts\u003c\/strong\u003e. For an eligible residential installation registered online, YORK indicates an extension to \u003cstrong\u003e10 years on the compressor and 10 years on parts\u003c\/strong\u003e. Ten-year labour coverage was also presented as an option requiring additional coverage. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe current AirGreen product sheet displays \u003cstrong\u003e10-10-0 years\u003c\/strong\u003e, with the possibility of an additional warranty.\u003c\/p\u003e\n\u003cp\u003eThis detail illustrates the importance of properly registering the equipment and retaining the system information after installation. An extended warranty is useful only if the owner can clearly identify the model and serial numbers and the registration conditions have been met.\u003c\/p\u003e\n\u003ch3\u003eWhat We Appreciate Technically About This YORK X Series 9K\u003c\/h3\u003e\n\u003cp\u003eFor a project where its characteristics genuinely match the heating load, several features are of interest:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e23 SEER according to the YORK catalogue\u003c\/strong\u003e, cooling modulation from \u003cstrong\u003e3,099 to 9,599 BTU\/h\u003c\/strong\u003e, a nominal heating capacity higher than the nominal cooling capacity, a \u003cstrong\u003e208\/230 V\u003c\/strong\u003e power supply, relatively common \u003cstrong\u003e1\/4–3\/8 in\u003c\/strong\u003e piping, an indoor sound level as low as \u003cstrong\u003e29 dB(A)\u003c\/strong\u003e, and an outdoor unit with reasonable dimensions.\u003c\/p\u003e\n\u003cp\u003eHowever, it also has limitations to consider: the refrigerant is \u003cstrong\u003eR-410A\u003c\/strong\u003e, its published operating limit in heating mode is \u003cstrong\u003e-20 °C\u003c\/strong\u003e, and its ENERGY STAR status should be validated because the information provided by the current product sheet and the 2020 catalogue do not fully match.\u003c\/p\u003e\n\u003cp\u003eThis is precisely the kind of product for which a serious technical comparison is more valuable than a simple ranking based on the number of BTUs.\u003c\/p\u003e\n\u003ch3\u003eHave the YORK X Series 9,000 BTU installed by AirGreen\u003c\/h3\u003e\n\u003cp\u003eFor a \u003cstrong\u003eYORK mini-split installation in Montreal, Laval, Longueuil, the North Shore, the South Shore, or Montérégie\u003c\/strong\u003e, we can verify the required capacity, wall-mounted head location, compatibility of the existing piping, drain routing, electrical requirements, and outdoor unit placement.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, our goal is to ensure that the selected system matches the actual building, not just the figures on the product sheet. Contact us for a quote, to compare the X Series with other wall-mounted heat pumps, or to plan your residential or commercial HVAC project.\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120414372132,"sku":"DHX09CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_MINI_SPLIT_YORK_SERIE_X_9000_BTU_220V_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_c0a7538c-4812-414c-bdef-c7e10c257ebf.png?v=1789426029"},{"product_id":"mini-split-york-serie-x-23-seer-12000-btu-220v","title":"YORK X Series Mini Split 23 SEER | 12000 BTU 220V","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 12,000 BTU YORK wall-mounted heat pump whose technical details matter just as much as the series name\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYORK Series X 12,000 BTU 220V Mini Split\u003c\/strong\u003e is a single-zone wall-mounted heat pump consisting of the \u003cstrong\u003eDHX12NWB21S\u003c\/strong\u003e indoor unit and the \u003cstrong\u003eDHX12CSB21S\u003c\/strong\u003e outdoor unit. For a homeowner in \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, or the South Shore\u003c\/strong\u003e, this combination may be appealing when only one zone needs to be heated and cooled without installing a duct network.\u003c\/p\u003e\n\u003cp\u003eThe YORK brochure classifies this family among the \u003cstrong\u003eSeries X, up to 23 SEER\u003c\/strong\u003e single-zone systems and expressly confirms that the DHX12NWB21S \/ DHX12CSB21S pair is available in a \u003cstrong\u003e12,000 BTU\/h, 208\/230 V\u003c\/strong\u003e version. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis clarification is important because YORK also marketed a 12,000 BTU version of the Series X operating at 115 V. When we prepare a \u003cstrong\u003ewall-mounted heat pump installation\u003c\/strong\u003e, we always work from the complete model number rather than relying solely on “YORK Series X 12,000 BTU.” The model suffix confirms the power supply, piping, condenser specifications, and performance data.\u003c\/p\u003e\n\u003ch3\u003eSeries X “23 SEER”: what the brochure states for this specific model\u003c\/h3\u003e\n\u003cp\u003eThe commercial name \u003cstrong\u003eSeries X 23 SEER\u003c\/strong\u003e refers to a product line that can reach 23 SEER. However, for the exact \u003cstrong\u003eDHX12NWB21S \/ DHX12CSB21S combination at 208\/230 V\u003c\/strong\u003e, the 2020 YORK brochure publishes the following values:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eRated cooling capacity: 12,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling range: 3,099 to 12,999 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating capacity: 13,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating range: 2,400 to 14,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER: 12.5\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER: 22\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF: 10.1\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated cooling current: 4.5 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating current: 5.5 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 9 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOCP: 15 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor airflow: 400 \/ 318 \/ 241 \/ 194 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor sound pressure: 45 \/ 39 \/ 35 \/ 29 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor dimensions: 33 × 11 × 8 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound pressure: 54 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor dimensions: 33 × 21 × 13 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-410A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePiping: 1\/4 in liquid and 1\/2 in gas\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDrain: 5\/8 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum piping length: 65.5 ft, or approximately 20 m\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum elevation difference: 33 ft, or approximately 10 m\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling operation: down to -18 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating operation: down to -20 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese values come from the table covering the Series X 208\/230 V models. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt is therefore necessary to distinguish between \u003cstrong\u003ethe maximum rating of the X Series family\u003c\/strong\u003e and \u003cstrong\u003ethe rating of the specific 12,000 BTU 220 V model\u003c\/strong\u003e. For this combination, the documentation provided indicates \u003cstrong\u003e22 SEER\u003c\/strong\u003e, not 23 SEER. At AirGreen, we consider this distinction essential when a customer compares several heat pumps based on their energy efficiency.\u003c\/p\u003e\n\u003ch3\u003eA nominal capacity of 12,000 BTU does not mean constant operation at 12,000 BTU\u003c\/h3\u003e\n\u003cp\u003eThe compressor uses \u003cstrong\u003eInverter\u003c\/strong\u003e technology. The unit therefore does not need to constantly operate at its full nominal capacity.\u003c\/p\u003e\n\u003cp\u003eThe brochure gives an approximate cooling range of \u003cstrong\u003e3,099 to 12,999 BTU\/h\u003c\/strong\u003e. In heating, the range extends from \u003cstrong\u003e2,400 to 14,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation is particularly relevant during milder spring and fall days. When a room approaches its setpoint temperature, the system can reduce its output instead of repeatedly cycling through complete starts and stops.\u003c\/p\u003e\n\u003cp\u003eIn an \u003cstrong\u003eHVAC installation in Montréal or Laval\u003c\/strong\u003e, this behavior can help maintain a more stable temperature in a living room, an open floor, a work area, or a dwelling. However, the result depends directly on proper sizing.\u003c\/p\u003e\n\u003cp\u003eInstalling a 12,000 BTU unit in an area that requires much less capacity is not automatically advantageous. Conversely, asking a 12,000 BTU wall-mounted unit to handle several rooms separated by doors and hallways can lead to significant temperature differences.\u003c\/p\u003e\n\u003ch3\u003eHeating at -20 °C: an operating limit, not a guaranteed capacity of 13,000 BTU\u003c\/h3\u003e\n\u003cp\u003eThe YORK brochure indicates a heating operating range from \u003cstrong\u003e-20 °C to 24 °C\u003c\/strong\u003e for the DHX12CSB21S model. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe meaning of this data must be stated precisely. \u003cstrong\u003e-20 °C is the published outdoor operating limit for heating\u003c\/strong\u003e. This does not mean that the heat pump will still automatically provide its nominal 13,000 BTU\/h at -20 °C.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product sheet also lists heating capacities of \u003cstrong\u003e10,400 BTU at -8 °C\u003c\/strong\u003e and \u003cstrong\u003e9,100 BTU at -15 °C\u003c\/strong\u003e. These figures are much more useful than a simple minimum temperature when assessing how a heat pump will perform in the Greater Montréal climate.\u003c\/p\u003e\n\u003cp\u003eIn a home in \u003cstrong\u003eLongueuil, Boucherville, Terrebonne, Laval, or Montréal\u003c\/strong\u003e, heating needs increase precisely when the outdoor temperature drops. The available capacity at -8 °C and -15 °C must therefore be compared with the zone’s actual heat losses.\u003c\/p\u003e\n\u003cp\u003eThat is why we never determine the suitability of a heat pump solely based on the statement “heats down to -20 °C.”\u003c\/p\u003e\n\u003ch3\u003eAn interesting unit for one well-defined zone\u003c\/h3\u003e\n\u003cp\u003eThe X Series is designed as a \u003cstrong\u003esingle-zone\u003c\/strong\u003e system: one outdoor unit is paired with one indoor unit. YORK specifically describes this architecture as a solution intended for the heating and cooling needs of a single indoor space. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn practice, a 12,000 BTU unit may be considered for different types of spaces, but we always analyze the actual layout.\u003c\/p\u003e\n\u003cp\u003eA moderately sized open ground floor can allow good air circulation. A home with a large central living room may also be a logical candidate. A bedroom with a very high ceiling, extensive glazing and strong solar exposure, however, has a very different load from a well-insulated interior bedroom.\u003c\/p\u003e\n\u003cp\u003eThe number of square feet is therefore only one of several factors. We also consider \u003cstrong\u003einsulation, glazing, orientation, floor, ceiling height, air infiltration, sunlight and airflow between rooms\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eFour airflow speeds and indoor operation as quiet as 29 dB(A)\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHX12NWB21S\u003c\/strong\u003e indoor unit provides four airflow levels: \u003cstrong\u003e400, 318, 241 and 194 CFM\u003c\/strong\u003e. Its sound pressure ranges from \u003cstrong\u003e45 dB(A) at high speed to 29 dB(A) at the lowest setting\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis range gives us a better idea of the unit’s actual behavior than a single minimum value.\u003c\/p\u003e\n\u003cp\u003eAt low load, the system can operate at a quieter speed. When the room quickly requires more heating or cooling, the fan must move more air and naturally becomes more noticeable.\u003c\/p\u003e\n\u003cp\u003eFor a \u003cstrong\u003eheat pump installation in a bedroom\u003c\/strong\u003e, we pay particular attention to the direction of the airflow. Even a relatively quiet unit can become uncomfortable if it is installed directly above the bed or continuously blows air toward the sleeping area.\u003c\/p\u003e\n\u003cp\u003eIn a living room, the challenge is different: we often seek to achieve the best possible reach toward adjacent areas without directing the airflow straight at occupants.\u003c\/p\u003e\n\u003ch3\u003eAutomatic horizontal and vertical louvers\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates \u003cstrong\u003eautomatic control of the vertical and horizontal louvers\u003c\/strong\u003e. This feature makes it possible to change the direction of the air stream without manually repositioning the fins each time.\u003c\/p\u003e\n\u003cp\u003eThe general X Series documentation also describes functions related to airflow control, and YORK describes the control center as allowing users to manage the temperature, mode, fan speed, and airflow direction. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a larger space, this feature can improve air distribution by preventing a single part of the room from continuously receiving most of the airflow.\u003c\/p\u003e\n\u003ch3\u003eWi-Fi is optional, and the appropriate adapter is required\u003c\/h3\u003e\n\u003cp\u003eOne detail comes up regularly in our conversations with homeowners: \u003cstrong\u003e“Can I control my YORK with my phone?”\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor this X Series model, Wi-Fi is \u003cstrong\u003eoptional\u003c\/strong\u003e. YORK identifies the \u003cstrong\u003eCS532AH\u003c\/strong\u003e adapter as a required accessory. The \u003cstrong\u003eDRCPX\u003c\/strong\u003e wireless remote, on the other hand, comes standard with P and X Series units. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe app indicated in this documentation is the \u003cstrong\u003eEWPE Smart App\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis point should be verified before installation when a customer considers phone control essential. A “Wi-Fi compatible” statement is not equivalent to “Wi-Fi module included.”\u003c\/p\u003e\n\u003ch3\u003eConstruction and features designed for a residential mini-split\u003c\/h3\u003e\n\u003cp\u003eThe page dedicated to the X Series highlights the \u003cstrong\u003ehigh-efficiency Inverter technology\u003c\/strong\u003e, a heavy-gauge steel structure, quiet operation, room-temperature display on the indoor unit, and a corrosion-resistant coating. YORK also emphasizes that the system defrosts as needed rather than according to a rigid schedule, which is intended to reduce energy consumption associated with defrost cycles. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor Quebec’s climate, defrosting deserves particular attention. When the outdoor unit operates in heating mode during cold, humid weather, frost can accumulate on the outdoor coil. The system must periodically remove this buildup to maintain heat exchange.\u003c\/p\u003e\n\u003cp\u003eDuring a \u003cstrong\u003eHVAC service call\u003c\/strong\u003e, a homeowner may sometimes interpret a temporary change in operation during winter as a breakdown when it is simply a normal defrost cycle. Proper installation must also allow the water produced by this defrosting to drain away without creating a block of ice beneath the unit.\u003c\/p\u003e\n\u003ch2\u003eInstallation in Montreal, Laval, Longueuil, the North Shore, and the South Shore: the details that influence the outcome\u003c\/h2\u003e\n\u003ch3\u003eThe 1\/4 in – 1\/2 in piping is a critical detail when replacing equipment\u003c\/h3\u003e\n\u003cp\u003eThe DHX12CSB21S uses a \u003cstrong\u003e1\/4 in liquid line\u003c\/strong\u003e and a \u003cstrong\u003e1\/2 in gas line\u003c\/strong\u003e. The maximum total length is \u003cstrong\u003e65.5 feet\u003c\/strong\u003e, with a maximum elevation difference of \u003cstrong\u003e33 feet\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003e1\/2 in diameter on the gas side\u003c\/strong\u003e deserves careful checking when replacing an old heat pump.\u003c\/p\u003e\n\u003cp\u003eHere is a scenario we regularly encounter in HVAC work: a homeowner already has a wall-mounted unit, the lines are hidden behind trim, and they wish to keep the entire existing installation. The mere fact that the pipes “look like” those of the new unit is not enough.\u003c\/p\u003e\n\u003cp\u003eWe check the actual diameters, the condition of the copper, the length, the routing, and compatibility with the new unit. Automatically reusing a 3\/8 in gas line for a unit that requires \u003cstrong\u003e1\/2 po\u003c\/strong\u003e is not good practice.\u003c\/p\u003e\n\u003cp\u003eThis verification can prevent performance, oil return, refrigerant pressure, and long-term reliability problems.\u003c\/p\u003e\n\u003ch3\u003e220 V simplifies certain projects, but the circuit must remain compliant with the manufacturer's data\u003c\/h3\u003e\n\u003cp\u003eThis version of the YORK Series X is powered by \u003cstrong\u003e208\/230 V\u003c\/strong\u003e. The brochure lists an \u003cstrong\u003eMCA of 9 A\u003c\/strong\u003e and an \u003cstrong\u003eMOCP of 15 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMCA refers to the minimum circuit ampacity required by the equipment. MOCP establishes the maximum overcurrent protection based on the manufacturer's data.\u003c\/p\u003e\n\u003cp\u003eWhen replacing equipment, the presence of an old 240 V circuit does not allow us to immediately conclude that everything can be kept. The wiring, protection, disconnect switch, and entire connection must be compatible with the new equipment and applicable requirements.\u003c\/p\u003e\n\u003cp\u003eThis is also why it is useful to have the \u003cstrong\u003eexact model numbers before installation day\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e33 inches of width indoors: wall selection remains important\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately \u003cstrong\u003e33 × 11 × 8 in\u003c\/strong\u003e. This size is relatively compact for a 12,000 BTU wall-mounted unit, but the space available on the wall is not the only criterion.\u003c\/p\u003e\n\u003cp\u003eWe must also consider the necessary clearances, access to the filters, the possibility of carrying out \u003cstrong\u003ewall-mounted heat pump cleaning\u003c\/strong\u003e, the drain route, the piping layout, and the projected airflow.\u003c\/p\u003e\n\u003cp\u003eA location that looks ideal in a photo may be less suitable on-site if a beam, plumbing drainpipe, electrical panel, or exterior constraint is located behind the wall.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eHVAC installation\u003c\/strong\u003e must be designed as a whole, from the indoor evaporator to the outdoor condenser.\u003c\/p\u003e\n\u003ch3\u003eThe 33 × 21 × 13 in. condenser and winter management\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit measures approximately \u003cstrong\u003e33 in. wide, 21 in. deep, and 13 in. high\u003c\/strong\u003e, with a published sound pressure level of \u003cstrong\u003e54 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eMontreal, Laval, and Longueuil\u003c\/strong\u003e, we must consider snow, ice, drainage, and proximity to windows or neighboring properties.\u003c\/p\u003e\n\u003cp\u003eInstalling the condenser too low can increase the risk of snow accumulating around the heat exchanger. Placing it in an area where defrost water remains trapped can create a mass of ice beneath the unit. A location too close to a bedroom can also make outdoor noise more noticeable at night.\u003c\/p\u003e\n\u003cp\u003eThe quality of an installation is therefore not measured solely by the appearance of the decorative line sets.\u003c\/p\u003e\n\u003ch3\u003eR-410A: a previous-generation platform that must be serviced according to its own specifications\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHX12CSB21S uses R-410A\u003c\/strong\u003e. The brochure specifies a refrigerant charge of 47.61 oz, or approximately 1.4 kg for this model. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe type of refrigerant is particularly important for servicing and repairs. Practices applicable to different refrigerants must never be mixed, and the gas used should not be assumed simply because two condensers appear similar.\u003c\/p\u003e\n\u003cp\u003eDuring an \u003cstrong\u003eHVAC service call or diagnostic\u003c\/strong\u003e, the nameplate and manufacturer information remain the primary references.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR: a difference between the 2020 brochure and the current product sheet that must be noted\u003c\/h3\u003e\n\u003cp\u003eOne documentary point deserves particular attention.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen product sheet currently indicates \u003cstrong\u003eENERGY STAR: No\u003c\/strong\u003e and \u003cstrong\u003eENERGY STAR Cold Climate: No\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eHowever, the 2020 YORK brochure includes a note stating that all models shown on the X Series page were ENERGY STAR certified, with the exception of the 18,000 BTU models \u003cstrong\u003eDHX18NWB21S and DHX18CSB21S\u003c\/strong\u003e. According to this historical brochure, the 12,000 BTU 220 V model was therefore among the models identified as ENERGY STAR certified at that time. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese two sources do not necessarily describe the same certification status at the same time.\u003c\/p\u003e\n\u003cp\u003eFor a \u003cstrong\u003ecurrent Hydro-Québec or LogisVert subsidy\u003c\/strong\u003e, never rely solely on an old catalog. We must verify the current eligibility of the AHRI number and exact combination at the time of the project. The AirGreen listing provided mentions \u003cstrong\u003eAHRI 8578573\u003c\/strong\u003e and currently shows no provincial subsidy amount for this combination.\u003c\/p\u003e\n\u003cp\u003eThis is particularly relevant for homeowners comparing an older R-410A unit with a recent cold-climate-certified heat pump.\u003c\/p\u003e\n\u003ch3\u003eThe DHX12NWB21S indoor unit also appears in multizone systems: do not confuse the pairings\u003c\/h3\u003e\n\u003cp\u003eOne more technical detail can help avoid incorrect parts and documentation searches: \u003cstrong\u003eDHX12NWB21S\u003c\/strong\u003e also appears in the YORK catalog as a compatible wall-mounted indoor unit for certain W Series multizone systems. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn the product discussed here, it is paired with condenser \u003cstrong\u003eDHX12CSB21S\u003c\/strong\u003e, forming the \u003cstrong\u003e12,000 BTU 208\/230 V Single-Zone X Series\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis distinction becomes important when a homeowner is looking for a manual, circuit board, remote control, or warranty information. The indoor unit number alone is not always enough to identify the entire installed configuration.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we check both nameplates when a question depends on the exact pairing.\u003c\/p\u003e\n\u003ch3\u003eMaintenance: symptoms not to attribute immediately to the compressor\u003c\/h3\u003e\n\u003cp\u003eTo maintain good airflow, filters must remain clean, and the indoor heat exchanger must not gradually become dirty. An airflow restriction can reduce comfort, increase operating time, and give the impression that the heat pump has lost capacity.\u003c\/p\u003e\n\u003cp\u003eThe same principle applies to the condenser. Dust, debris, outdoor buildup, and ice can hinder heat exchange.\u003c\/p\u003e\n\u003cp\u003eWhen a customer tells us that their heat pump “isn’t heating as well as before,” we do not begin by assuming that the compressor needs to be replaced. We first examine the installation’s overall condition, airflow, temperatures, pressures, heat exchangers, controls, and system performance.\u003c\/p\u003e\n\u003cp\u003eThe YORK brochure also outlines diagnostic, defrost, and control functions that must be taken into account before concluding that there is a major failure.\u003c\/p\u003e\n\u003ch3\u003eWarranty: system registration is a document to keep\u003c\/h3\u003e\n\u003cp\u003eYORK documentation from this generation indicates a standard warranty of \u003cstrong\u003e7 years on the compressor and 5 years on parts\u003c\/strong\u003e, with the possibility of obtaining \u003cstrong\u003e10 years on the compressor and 10 years on parts\u003c\/strong\u003e for certain residential installations registered in accordance with the manufacturer's conditions. Ten-year labour coverage was also presented as a separate option requiring an additional purchase. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen information sheet indicates \u003cstrong\u003e10-10-0 years\u003c\/strong\u003e for the compressor, parts, and labour, with an additional warranty potentially available.\u003c\/p\u003e\n\u003cp\u003eIt is therefore important to keep the installation invoice, serial numbers, and any registration confirmation. A warranty stated on a product sheet remains subject to the conditions applicable to the system actually installed.\u003c\/p\u003e\n\u003ch3\u003eFor which customer does this YORK X Series 12,000 BTU make the most sense?\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003eYORK ductless heat pump\u003c\/strong\u003e is primarily intended for a single-zone project where a capacity of approximately 12,000 BTU truly meets the requirements.\u003c\/p\u003e\n\u003cp\u003eIt can be a coherent solution when a homeowner prioritizes a 208\/230 V Inverter system, a relatively compact indoor unit, a heating operating range down to -20 °C, optional Wi-Fi, and a ductless installation.\u003c\/p\u003e\n\u003cp\u003eIt is less obvious for a project where the top priority is a \u003cstrong\u003ecurrent cold-climate certification\u003c\/strong\u003e, a significant LogisVert rebate, or high heating capacity at the lowest winter temperatures. In that case, comparing this YORK with newer models may be worthwhile before making a decision.\u003c\/p\u003e\n\u003cp\u003eThat is precisely the role we play at \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e: not choosing a unit solely because its BTU rating seems to match the square footage, but analyzing the complete system and its installation context.\u003c\/p\u003e\n\u003ch3\u003eHave AirGreen review your project before choosing the capacity\u003c\/h3\u003e\n\u003cp\u003eFor a \u003cstrong\u003eYORK heat pump installation in Montreal, Laval, Longueuil, on the North Shore, South Shore, or in Montérégie\u003c\/strong\u003e, we can verify the required capacity, indoor and outdoor placement, piping, electrical circuit, and building-specific constraints.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen for a quote, a comparison with other ductless heat pumps, or technical validation before installation.\u003c\/strong\u003e A good choice starts with the exact model, but also with an installation designed around the actual building.\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120414404900,"sku":"DHX12CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_MINI_SPLIT_YORK_SERIE_X_12000_BTU_220V_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_4bd4eb50-1e11-4a91-a6e4-0ee8523d2ff8.png?v=1789426029"},{"product_id":"mini-split-york-serie-x-23-seer-18000-btu","title":"YORK X Series Mini Split 23 SEER | 18000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eAn 18,000 BTU YORK wall-mounted heat pump that should be evaluated by its exact model, not solely by the X Series name\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYORK X Series 18,000 BTU Mini Split\u003c\/strong\u003e is a single-zone wall-mounted heat pump consisting of the \u003cstrong\u003eDHX18NWB21S\u003c\/strong\u003e indoor unit and the \u003cstrong\u003eDHX18CSB21S\u003c\/strong\u003e outdoor unit, powered by \u003cstrong\u003e208\/230 V\u003c\/strong\u003e and using \u003cstrong\u003eR-410A\u003c\/strong\u003e. In a house, condo, apartment, office, or open-concept area in \u003cstrong\u003eMontreal, Laval, Longueuil, on the North Shore or South Shore\u003c\/strong\u003e, this capacity falls into a very common category: large enough to condition a substantial zone while remaining a relatively compact ductless system.\u003c\/p\u003e\n\u003cp\u003eThe commercial name \u003cstrong\u003e“X Series 23 SEER”\u003c\/strong\u003e nevertheless requires an important clarification. YORK does present the \u003cstrong\u003eX Series as a family that can reach 23 SEER\u003c\/strong\u003e, but the exact 18,000 BTU \u003cstrong\u003eDHX18NWB21S \/ DHX18CSB21S\u003c\/strong\u003e combination does not reach 23 SEER. The YORK catalog provided with this listing indicates \u003cstrong\u003e20 SEER, 12.5 EER, and 10 HSPF\u003c\/strong\u003e for this specific model. It also confirms a rated capacity of \u003cstrong\u003e18,000 BTU\/h in cooling\u003c\/strong\u003e and \u003cstrong\u003e19,800 BTU\/h in heating\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe YORK specification sheet currently associated with \u003cstrong\u003eAHRI 8578577\u003c\/strong\u003e also lists this combination as a \u003cstrong\u003e1.5-ton, 18,000 BTU, 20 SEER2\u003c\/strong\u003e single-zone system. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis distinction is exactly the type of detail we verify at \u003cstrong\u003eAirGreen\u003c\/strong\u003e before comparing two heat pumps. The maximum advertised performance for a product family is not automatically the performance of every capacity in that family.\u003c\/p\u003e\n\u003ch3\u003eThe exact models that make up this system\u003c\/h3\u003e\n\u003cp\u003eThe 18,000 BTU configuration includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eWall-mounted indoor unit: DHX18NWB21S\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eInverter outdoor unit: DHX18CSB21S\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI number: 8578577\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eType: single-zone ductless air-to-air heat pump\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated cooling capacity: 18,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating capacity: 19,800 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eVoltage: 208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-410A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePiping: 1\/4 in. liquid and 5\/8 in. gas\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 16 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum MOCP\/MOP protection: 25 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWi-Fi: optional\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWireless remote control: standard\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYORK explicitly identifies the \u003cstrong\u003eDHX18NWB21S and DHX18CSB21S\u003c\/strong\u003e models as the 18,000 BTU 208\/230 V pair in the X Series. The manufacturer highlights Inverter technology, quiet operation, corrosion protection, and demand-based defrosting. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eRated at 18,000 BTU, but with capacity that actually modulates\u003c\/h3\u003e\n\u003cp\u003eThe mention of \u003cstrong\u003e18,000 BTU\u003c\/strong\u003e does not mean that the compressor constantly produces 18,000 BTU\/h. \u003cstrong\u003eInverter\u003c\/strong\u003e technology adjusts its capacity according to the thermal load.\u003c\/p\u003e\n\u003cp\u003eFor the DHX18:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003erated cooling capacity: \u003cstrong\u003e18,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ecooling range: \u003cstrong\u003e7,165 to 20,000 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003erated heating capacity: \u003cstrong\u003e19,800 BTU\/h\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003eheating range: \u003cstrong\u003e7,336 to 23,498 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis modulation range matters greatly in a real installation. Consider an open-plan area that requires high capacity during a hot July afternoon. The compressor can increase its output. Once the temperature has stabilized, it can reduce its speed instead of constantly cycling on and off.\u003c\/p\u003e\n\u003cp\u003eFor the homeowner, this can translate into a more consistent temperature, fewer sudden fluctuations, and generally quieter operation when the load decreases.\u003c\/p\u003e\n\u003ch3\u003e20 SEER in the original documentation: why does the title say 23 SEER?\u003c\/h3\u003e\n\u003cp\u003eThe X Series included several capacities. In the YORK catalogue, the \u003cstrong\u003e9,000 BTU 208\/230 V model reaches 23 SEER\u003c\/strong\u003e, the 12,000 BTU model is listed at 22 SEER, while the \u003cstrong\u003e18,000 and 24,000 BTU models are listed at 20 SEER\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTherefore, \u003cstrong\u003e“X Series 23 SEER” should be interpreted as the name of the product line or its maximum efficiency\u003c\/strong\u003e, not as the exact rating of the DHX18.\u003c\/p\u003e\n\u003cp\u003eFor customers comparing different quotes for \u003cstrong\u003ewall-mounted heat pumps in Montreal\u003c\/strong\u003e, this distinction is far from minor. Two units with similar commercial names may have different certified performance ratings depending on their capacity.\u003c\/p\u003e\n\u003cp\u003eThe documentation currently published within the YORK network points in the same direction: the system corresponding to \u003cstrong\u003eAHRI 8578577\u003c\/strong\u003e is identified as an \u003cstrong\u003e18,000 BTU, 1.5-ton, 20 SEER2\u003c\/strong\u003e system. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eHeating down to -20 °C: a figure that must be interpreted correctly in Quebec\u003c\/h3\u003e\n\u003cp\u003eThe YORK technical table sets the DHX18’s heating operating range at approximately \u003cstrong\u003e-20 °C to +24 °C\u003c\/strong\u003e and its cooling range at approximately \u003cstrong\u003e-18 °C to +46 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis means that the manufacturer authorizes the system to operate in heating mode down to \u003cstrong\u003e-20 °C\u003c\/strong\u003e. However, this does not mean that the heat pump will still provide its \u003cstrong\u003erated 19,800 BTU\/h\u003c\/strong\u003e when the outdoor temperature reaches -20 °C.\u003c\/p\u003e\n\u003cp\u003eThis is an important distinction for our climate.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eMontreal, Laval, Longueuil, Boucherville, Terrebonne, Blainville, Repentigny, or elsewhere on the North Shore and South Shore\u003c\/strong\u003e, temperatures can fall below this generation of equipment’s operating limit. We therefore need to view the heat pump as a component of the building’s heating system, rather than simply reading “heating -20 °C” on a technical data sheet.\u003c\/p\u003e\n\u003cp\u003eWhen existing electric heating remains available, such as baseboard heaters or other backup equipment, the system can make a substantial contribution to reducing the use of resistance heating during much of the season. For a project where the homeowner wants a heat pump intended to provide the maximum possible share of heating during extreme cold, we would compare this X Series with modern models specifically designed and certified for the \u003cstrong\u003ecold climate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eAn interesting feature: 15,900 BTU at -8 °C and 15,000 BTU at -15 °C\u003c\/h3\u003e\n\u003cp\u003eThe associated AirGreen product sheet indicates a heating capacity of \u003cstrong\u003e15,900 BTU\/h at -8 °C\u003c\/strong\u003e and \u003cstrong\u003e15,000 BTU\/h at -15 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThese values clearly illustrate why low-temperature capacity is more useful than the single “18,000 BTU” figure for understanding winter performance.\u003c\/p\u003e\n\u003cp\u003eA unit may be nominally rated at 18,000 or 19,800 BTU under standard certification conditions, then provide a different capacity when the outdoor air becomes much colder. This is precisely the subzero-temperature capacity we examine when a homeowner asks us, “Will this heat pump actually heat my home in January?”\u003c\/p\u003e\n\u003ch3\u003eA 38-inch indoor unit that moves up to approximately 559 CFM\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHX18NWB21S\u003c\/strong\u003e wall-mounted unit measures approximately \u003cstrong\u003e38 × 12 × 9 in\u003c\/strong\u003e. Its airflow varies depending on the fan setting. YORK documentation lists \u003cstrong\u003e559 \/ 489 \/ 412 \/ 335 CFM\u003c\/strong\u003e for the four levels, while indoor sound pressure ranges from approximately \u003cstrong\u003e47 to 35 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese figures have a practical consequence for choosing the location.\u003c\/p\u003e\n\u003cp\u003eAn 18,000 BTU wall-mounted heat pump installed at the end of a long hallway will not necessarily provide the same comfort as a unit positioned to project air along the main axis of an open-concept area. We therefore aim to use the appliance’s air-moving capacity rather than fight against the home’s layout.\u003c\/p\u003e\n\u003cp\u003eIn our assessments of \u003cstrong\u003eHVAC projects in Greater Montreal\u003c\/strong\u003e, the best locations are not always those that make the piping route the shortest. We must also consider:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eair movement;\u003c\/li\u003e\n\u003cli\u003ethe layout of the rooms;\u003c\/li\u003e\n\u003cli\u003edoors and passageways;\u003c\/li\u003e\n\u003cli\u003ehigh furniture;\u003c\/li\u003e\n\u003cli\u003ewalls that block the air stream;\u003c\/li\u003e\n\u003cli\u003efuture access for cleaning;\u003c\/li\u003e\n\u003cli\u003ethe condensate drain route;\u003c\/li\u003e\n\u003cli\u003ethe possible location of the outdoor unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e35 dB(A) at the low setting: what this changes in an occupied room\u003c\/h3\u003e\n\u003cp\u003eYORK publishes a range of approximately \u003cstrong\u003e35 to 47 dB(A)\u003c\/strong\u003e for this indoor unit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe 35 dB(A) value corresponds to low-speed operation. When high demand requires greater airflow, the noise naturally increases.\u003c\/p\u003e\n\u003cp\u003eThis is why sizing also affects acoustic comfort. An appliance operating constantly at its higher setting will be more noticeable than a properly selected system that can reduce its airflow once the desired temperature is reached.\u003c\/p\u003e\n\u003cp\u003eFor a bedroom, home office, or living room where noise is a priority, we therefore assess both \u003cstrong\u003ethe published sound level and the actual load of the space\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eThe outdoor unit: 38 × 28 × 16 in. and approximately 55 dB(A)\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHX18CSB21S\u003c\/strong\u003e condenser measures approximately \u003cstrong\u003e38 in. wide, 28 in. high, and 16 in. deep\u003c\/strong\u003e. The catalog indicates an outdoor sound pressure level of \u003cstrong\u003e55 dB(A)\u003c\/strong\u003e and an R-410A refrigerant charge of approximately \u003cstrong\u003e1.7 kg\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor an installation on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, in \u003cstrong\u003eMontreal\u003c\/strong\u003e, or in a dense residential area of \u003cstrong\u003eLaval\u003c\/strong\u003e, the choice of outdoor location deserves particular attention. We consider windows, neighbors, accessibility, snow removal, and the required clearances around the heat exchanger.\u003c\/p\u003e\n\u003cp\u003eAn outdoor unit must not be installed in a location where it will regularly be buried by snow or where airflow is severely restricted.\u003c\/p\u003e\n\u003ch3\u003e1\/4 in. – 5\/8 in. piping: a critical detail when replacing a system\u003c\/h3\u003e\n\u003cp\u003eThe DHX18 uses:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1\/4 in. liquid side\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5\/8 in. gas side\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003edrain indicated at \u003cstrong\u003e5\/8 po\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emaximum total piping length: approximately \u003cstrong\u003e82 ft (25 m)\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003emaximum height difference: approximately \u003cstrong\u003e33 ft (10 m)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe \u003cstrong\u003e5\/8 in. gas-side diameter\u003c\/strong\u003e is particularly important when replacing an existing heat pump.\u003c\/p\u003e\n\u003cp\u003eWe regularly see projects where the owner wants to keep the old lines because they are concealed in a finished ceiling or wall. The right question is not simply whether “the pipes are still good.” You must check their \u003cstrong\u003ediameter, condition, length, compatibility with the new system, and refrigerant history\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eInstalling equipment designed for 1\/4–5\/8 on an unsuitable line simply to avoid work can compromise the operation and compliance of the installation.\u003c\/p\u003e\n\u003ch3\u003eElectrical circuit: MCA 16 A and maximum protection of 25 A\u003c\/h3\u003e\n\u003cp\u003eThe DHX18 is powered by \u003cstrong\u003e208\/230 V single-phase\u003c\/strong\u003e. YORK specifies:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003erated cooling current: \u003cstrong\u003e8.7 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003erated heating current: \u003cstrong\u003e7.5 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMCA: 16 A\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMOCP: 25 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMCA corresponds to the minimum ampacity to be considered for the circuit according to the equipment requirements, while MOCP establishes the maximum overcurrent protection permitted by the manufacturer.\u003c\/p\u003e\n\u003cp\u003eThis does not mean that a circuit breaker should be chosen at random between these two values. The electrical connection must be carried out according to the nameplate data, the documentation, the applicable Code, and the actual installation characteristics.\u003c\/p\u003e\n\u003ch3\u003eOptional Wi-Fi: the CS532AH adapter is required\u003c\/h3\u003e\n\u003cp\u003eThe X Series is compatible with phone control, but \u003cstrong\u003eWi-Fi is not factory-installed on this generation\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe catalog states:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003estandard \u003cstrong\u003eDRCPX\u003c\/strong\u003e wireless remote control;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEWPE Smart App\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ecompatible with the P, X, and Z Series;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCS532AH adapter required for the X Series\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor an owner who already has a DHX18 and wants to add Wi-Fi, we recommend checking the unit’s exact model before ordering a module. On an older-generation system, the availability of a compatible app does not automatically mean that the module is still available through all distribution channels.\u003c\/p\u003e\n\u003ch3\u003eX Series comfort features\u003c\/h3\u003e\n\u003cp\u003eThe YORK comparison table attributes several useful features to the X Series: Inverter technology, heating and cooling modes, dehumidification, energy saving, sleep mode, quiet operation, \u003cstrong\u003eiFeel\u003c\/strong\u003e function, intelligent preheating, intelligent defrosting, self-cleaning, automatic diagnosis, automatic restart, and louver control. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eControlling the louvers in the vertical and horizontal directions helps distribute air more evenly throughout a large room.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eiFeel\u003c\/strong\u003e function is also interesting in certain configurations. The principle is to use the temperature detected near the remote control rather than relying solely on the sensor located in the wall-mounted unit, which is normally near the ceiling, where the temperature may differ from that felt in the occupied zone.\u003c\/p\u003e\n\u003ch2\u003eInstallation in Quebec: where the YORK X Series 18,000 BTU is relevant, and where a newer model may be preferable\u003c\/h2\u003e\n\u003ch3\u003eA good candidate for an open-plan area or a zone with an actual load of around 18,000 BTU\u003c\/h3\u003e\n\u003cp\u003eCapacity should never be selected solely from a simplified square-footage chart.\u003c\/p\u003e\n\u003cp\u003eAn 800 sq. ft. open-plan area in a recent, well-insulated building does not necessarily have the same needs as an 800 sq. ft. space in a century-old duplex in \u003cstrong\u003eMontreal\u003c\/strong\u003e with large windows, poorly insulated walls, and significant air infiltration.\u003c\/p\u003e\n\u003cp\u003eWhen AirGreen evaluates a project, we consider in particular:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe area and volume of the zone;\u003c\/li\u003e\n\u003cli\u003eceiling height;\u003c\/li\u003e\n\u003cli\u003ethe number of exterior walls;\u003c\/li\u003e\n\u003cli\u003ethe number and orientation of windows;\u003c\/li\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003esun exposure;\u003c\/li\u003e\n\u003cli\u003ecommunication with adjacent rooms;\u003c\/li\u003e\n\u003cli\u003einternal loads;\u003c\/li\u003e\n\u003cli\u003ethe client’s winter heating objectives.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAn \u003cstrong\u003eoversized 18,000 BTU unit\u003c\/strong\u003e is not automatically better than a properly selected 12,000 or 15,000 BTU unit. Conversely, choosing a unit that is too small solely to reduce the price can force the system to operate continuously at high capacity during critical periods.\u003c\/p\u003e\n\u003ch3\u003eA typical scenario: replacing an old wall-mounted unit without redoing all the interior finishing\u003c\/h3\u003e\n\u003cp\u003eA common situation in the \u003cstrong\u003eGreater Montreal Area\u003c\/strong\u003e involves an existing wall-mounted heat pump whose piping runs through a finished part of the building.\u003c\/p\u003e\n\u003cp\u003eThe client wants to preserve the existing route as much as possible. With a DHX18, the first check is simple but essential: \u003cstrong\u003eare the existing lines actually 1\/4 in – 5\/8 in?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf this is not the case, we do not automatically consider an improvised adaptation acceptable. Instead, we analyze the best compromise between:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ereplacing the piping;\u003c\/li\u003e\n\u003cli\u003enew outdoor route;\u003c\/li\u003e\n\u003cli\u003elimited opening and restoration;\u003c\/li\u003e\n\u003cli\u003echoosing another compatible model;\u003c\/li\u003e\n\u003cli\u003erelocating the condenser.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis type of detail explains why two quotes for “an 18,000 BTU heat pump” can differ significantly. The equipment cost is only one part of the project.\u003c\/p\u003e\n\u003ch3\u003eDrainage must be considered from the moment the location is chosen\u003c\/h3\u003e\n\u003cp\u003eIn air conditioning and dehumidification, the evaporator produces condensation water. This water must flow into a properly installed drain.\u003c\/p\u003e\n\u003cp\u003eWhen a natural slope is possible, we generally prioritize it. If the architecture requires the water to be lifted or makes a slope impossible, a condensate pump may become necessary.\u003c\/p\u003e\n\u003cp\u003eA poorly designed drain can cause much more unpleasant problems than most homeowners imagine: indoor leakage, odors, biofilm buildup, pump noise, or difficult access for maintenance.\u003c\/p\u003e\n\u003cp\u003eThe indoor unit location should therefore be chosen with the drain route in mind, not solely based on aesthetics.\u003c\/p\u003e\n\u003ch3\u003eR-410A: a familiar technology, but belonging to an earlier generation\u003c\/h3\u003e\n\u003cp\u003eThe DHX18 uses \u003cstrong\u003eR-410A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIt is a refrigerant that was widely used for many years in residential systems. However, the current HVAC market is gradually shifting toward refrigerants with lower global warming potential.\u003c\/p\u003e\n\u003cp\u003eThis does not mean that an existing R-410A system must be replaced simply for that reason. For a \u003cstrong\u003enew installation\u003c\/strong\u003e, however, the refrigerant type is now one of the criteria we present to the customer when comparing an older in-stock unit with a current-generation model.\u003c\/p\u003e\n\u003ch3\u003eENERGY STAR: YORK documentation specifically excludes the DHX18\u003c\/h3\u003e\n\u003cp\u003eHere is another point that should be verified by model number rather than by product line name.\u003c\/p\u003e\n\u003cp\u003eThe YORK catalog specifies that \u003cstrong\u003eall models in the table are ENERGY STAR certified, except models DHX18NWB21S and DHX18CSB21S\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis corresponds to the information displayed on the AirGreen page: \u003cstrong\u003eENERGY STAR: No\u003c\/strong\u003e and \u003cstrong\u003eENERGY STAR Cold Climate: No\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis exception is important because other capacities in the same X Series may have had different certifications. We therefore should not conclude that a DHX18 is ENERGY STAR certified simply because another X Series capacity is.\u003c\/p\u003e\n\u003ch3\u003eImplications for LogisVert since November 26, 2025\u003c\/h3\u003e\n\u003cp\u003eHydro-Québec currently states that heat pumps installed \u003cstrong\u003esince November 26, 2025, must be ENERGY STAR certified to qualify for LogisVert financial assistance\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSince the \u003cstrong\u003eDHX18NWB21S \/ DHX18CSB21S pair is explicitly excluded from ENERGY STAR certification in the YORK catalog\u003c\/strong\u003e, this configuration should not be presented as eligible for the LogisVert program for a current installation.\u003c\/p\u003e\n\u003cp\u003eThis is an important point when calculating a project’s actual cost. An in-stock unit offered at an attractive price may seem advantageous initially, but a newer model eligible for financial assistance can sometimes provide a better net cost, in addition to superior winter performance.\u003c\/p\u003e\n\u003cp\u003eFor this reason, at AirGreen, we always compare \u003cstrong\u003ethe installed price after any potential rebate\u003c\/strong\u003e, not just the displayed equipment price.\u003c\/p\u003e\n\u003ch3\u003eWarranty: 10 years possible subject to the applicable registration requirements\u003c\/h3\u003e\n\u003cp\u003eThe YORK catalog for this generation describes a basic warranty of \u003cstrong\u003e7 years on the compressor and 5 years on parts\u003c\/strong\u003e, with the option to extend it to \u003cstrong\u003e10 years on the compressor and 10 years on parts\u003c\/strong\u003e for an eligible residential installation after registration. Ten-year labor coverage was also available under certain conditions with the purchase of an extension. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen DHX18 page, for its part, lists a warranty \u003cstrong\u003e10-10-0\u003c\/strong\u003e, with the possibility of additional warranty coverage.\u003c\/p\u003e\n\u003cp\u003eFor a unit from existing inventory, best practice is to confirm the warranty terms applicable to the \u003cstrong\u003eactual serial number\u003c\/strong\u003e, the sale date, and the installation date. Registration policies may vary depending on the product’s age and the market for which it was intended.\u003c\/p\u003e\n\u003ch3\u003eMaintenance: four factors that directly affect performance\u003c\/h3\u003e\n\u003cp\u003eA properly installed wall-mounted heat pump must also be kept clean.\u003c\/p\u003e\n\u003cp\u003eFor the DHX18, we pay particular attention to:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe indoor unit filters\u003c\/strong\u003e: a restriction reduces airflow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe evaporator and blower wheel\u003c\/strong\u003e: significant buildup can reduce heat transfer and cause odors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe condensate drain\u003c\/strong\u003e: it must remain clear and properly sloped.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe outdoor coil\u003c\/strong\u003e: leaves, dust, snow, or vegetation must not block airflow.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eYORK also provided P, X, and Z Series options for photocatalytic and activated carbon filters in its accessory catalog. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhen the YORK X Series DHX18 remains a logical choice\u003c\/h3\u003e\n\u003cp\u003eThis heat pump may be relevant when:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe \u003cstrong\u003e18,000 BTU\u003c\/strong\u003e capacity genuinely meets the need;\u003c\/li\u003e\n\u003cli\u003ethe piping \u003cstrong\u003e1\/4–5\/8\u003c\/strong\u003e suitable for the project;\u003c\/li\u003e\n\u003cli\u003ethe main very-low-temperature heating is provided or supplemented by another source;\u003c\/li\u003e\n\u003cli\u003ethe absence of the LogisVert grant is already factored into the financial calculation;\u003c\/li\u003e\n\u003cli\u003ethe equipment price makes the proposal attractive;\u003c\/li\u003e\n\u003cli\u003ethe customer is specifically seeking a YORK configuration from this generation;\u003c\/li\u003e\n\u003cli\u003ean existing installation needs to be replaced due to specific constraints.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt offers a rated heating capacity higher than its rated cooling capacity, Inverter modulation, four fan speeds, a full-featured remote control, and operation down to approximately \u003cstrong\u003e-20 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhen we would instead recommend comparing it with a current heat pump\u003c\/h3\u003e\n\u003cp\u003eFor a new build or a complete replacement without compatibility constraints, it is worth comparing the DHX18 with next-generation heat pumps when the homeowner prioritizes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR certification\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ecold-climate\u003c\/strong\u003e certification;\u003c\/li\u003e\n\u003cli\u003ebetter heating capacity below -20 °C;\u003c\/li\u003e\n\u003cli\u003eeligibility for \u003cstrong\u003eLogisVert\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ea next-generation refrigerant;\u003c\/li\u003e\n\u003cli\u003ebuilt-in Wi-Fi;\u003c\/li\u003e\n\u003cli\u003eeven lower noise levels;\u003c\/li\u003e\n\u003cli\u003ehigher seasonal efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe comparison should focus on the project’s total cost, low-temperature performance, warranties, and available financial assistance—not just the number of BTUs indicated in the product name.\u003c\/p\u003e\n\u003ch3\u003eWhy entrust installation and sizing to AirGreen\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we serve \u003cstrong\u003eMontreal, Laval, Longueuil, the North Shore, the South Shore, and the entire Greater Montreal area\u003c\/strong\u003e for HVAC system installation, replacement, and maintenance.\u003c\/p\u003e\n\u003cp\u003eWith a unit like the \u003cstrong\u003eYORK DHX18\u003c\/strong\u003e, our added value includes verifying what lies behind the commercial headline: actual capacity, modulation range, piping diameter, electrical requirements, operating limits, ENERGY STAR certification, eligibility for rebates, and specific building constraints.\u003c\/p\u003e\n\u003cp\u003eThat is also why we emphasize the references \u003cstrong\u003eDHX18NWB21S \/ DHX18CSB21S\u003c\/strong\u003e and \u003cstrong\u003eAHRI 8578577\u003c\/strong\u003e. Model numbers make it possible to make a decision based on precise technical data rather than a simple “23 SEER” label.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre you considering an 18,000 BTU wall-mounted heat pump, or do you need to replace an existing YORK system? Contact AirGreen for a quote and project assessment. We can verify installation compatibility, compare the DHX18 with current models, and recommend the HVAC solution best suited to your property in Montreal, Laval, Longueuil, the North Shore, or the South Shore.\u003c\/strong\u003e\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120414437668,"sku":"DHX18CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_MINI_SPLIT_YORK_SERIE_X_18000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_11ae7ecf-c362-4c6d-9a3d-6e9111365762.png?v=1789426029"},{"product_id":"mini-split-york-serie-x-23-seer-24000-btu","title":"YORK X Series Mini Split 23 SEER | 24000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA large wall-mounted heat pump that deserves to be evaluated based on its actual capabilities, not just the “24,000 BTU” label\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYORK X Series 23 SEER Mini Split | 24000 BTU\u003c\/strong\u003e is intended for a very different type of project than a small wall-mounted heat pump installed solely in a bedroom. With its 42-inch indoor unit, airflow of up to 706 CFM, and broad modulation range, this combination may be suitable for a \u003cstrong\u003elarge open-concept area, a floor, a small commercial space, a living room connected to a kitchen, or a residential area with a significant heating load\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we pay particular attention to 24,000 BTU models because they are often chosen too quickly. Some homeowners select them based solely on floor area; others think that a larger unit will necessarily provide better comfort. In practice, the right selection depends on the building's layout, insulation, sun exposure, windows, ceilings, air circulation, and actual heating demand.\u003c\/p\u003e\n\u003cp\u003eFor this X Series, the model numbers are precise: \u003cstrong\u003eDHX24NWB21S for the wall-mounted indoor unit\u003c\/strong\u003e and \u003cstrong\u003eDHX24CSB21S for the outdoor unit\u003c\/strong\u003e. YORK clearly identifies this pair as the 24K BTU\/h, 208\/230 V configuration in its X Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, it is important to understand a particular feature of the nomenclature. The product line is called \u003cstrong\u003e“X Series 23 SEER”\u003c\/strong\u003e, but this figure represents the maximum performance of the family and not necessarily that of every capacity. For the DHX24 model specifically, the brochure indicates \u003cstrong\u003eSEER 20, EER 12.5, and HSPF 10\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is exactly the kind of detail we verify before comparing two HVAC systems. A general commercial designation never replaces reviewing the data sheet corresponding to the two model numbers actually installed.\u003c\/p\u003e\n\u003ch3\u003eYORK DHX24NWB21S + DHX24CSB21S: essential technical specifications\u003c\/h3\u003e\n\u003cp\u003eThe model presented on our AirGreen page is associated with reference \u003cstrong\u003eAHRI 8578581\u003c\/strong\u003e and operates with \u003cstrong\u003eR410A\u003c\/strong\u003e. The 2020 YORK brochure provides particularly detailed data for this combination.\u003c\/p\u003e\n\u003cp\u003eThe key specifications are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: DHX24NWB21S\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: DHX24CSB21S\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V, 1 phase, 60 Hz\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eYORK published rated cooling capacity: 22,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling modulation range: 6,824 to 27,296 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRated heating capacity: 23,000 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating modulation range: 6,824 to 30,708 BTU\/h\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER: 12.5\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER: 20 for this specific combination\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF: 10\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 20 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOCP\/MOP: 30 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor airflow: 706 \/ 647 \/ 588 \/ 530 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor sound pressure: 48 \/ 44 \/ 40 \/ 36 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound pressure: 59 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePiping: 1\/4 in liquid and 5\/8 in gas\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDrain: 5\/8 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum piping length: 82 ft \/ 25 m\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum elevation difference: 33 ft \/ 10 m\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating range: down to -20 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCooling range: down to -18 °C outdoor low-temperature side\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWi-Fi available with CS532AH adapter\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese figures provide a much more useful picture of the unit’s potential behavior than a simple “24,000 BTU.”\u003c\/p\u003e\n\u003ch3\u003eWhy does YORK call it 24,000 BTU when the brochure indicates 22,000 BTU nominal cooling capacity?\u003c\/h3\u003e\n\u003cp\u003eThis difference deserves a clear explanation.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHX24\u003c\/strong\u003e belongs to YORK’s 24K commercial category, but the nominal cooling capacity listed in the manufacturer’s table is \u003cstrong\u003e22,000 BTU\/h\u003c\/strong\u003e. However, its maximum modulated capacity reaches \u003cstrong\u003e27,296 BTU\/h\u003c\/strong\u003e in cooling mode. In heating mode, it is nominally \u003cstrong\u003e23,000 BTU\/h\u003c\/strong\u003e and can reach \u003cstrong\u003e30,708 BTU\/h\u003c\/strong\u003e under the conditions defined by the manufacturer. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis does not mean there is a product error. HVAC equipment families are commonly grouped by capacity classes, while the certified data for a specific combination may differ from the round value used in its commercial designation.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, when we size a \u003cstrong\u003ewall-mounted heat pump in Montreal, Laval, Longueuil, on the North Shore or the South Shore\u003c\/strong\u003e, we therefore consider the certified capacity and its modulation range, not just the number shown in the product name.\u003c\/p\u003e\n\u003ch3\u003eModulation that genuinely changes the unit’s behavior\u003c\/h3\u003e\n\u003cp\u003eThe YORK X Series 24K’s modulation range is noteworthy because it can drop to approximately \u003cstrong\u003e6,824 BTU\/h\u003c\/strong\u003e while also being able to significantly exceed its nominal capacity at a given moment.\u003c\/p\u003e\n\u003cp\u003eA properly sized Inverter unit therefore does not constantly operate at 22,000 or 24,000 BTU. As the room approaches the desired temperature, the compressor can reduce its output to better track the load.\u003c\/p\u003e\n\u003cp\u003eYORK explains that its mini-split systems specifically use this refrigerant flow modulation to adjust capacity to the zone’s demand. This technology also helps limit the temperature fluctuations associated with systems that constantly start and stop. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a large open-concept area in \u003cstrong\u003eLongueuil\u003c\/strong\u003e, for example, demand can be high on a July afternoon when the sun shines directly through several windows, then drop sharply after sunset. The advantage of the Inverter compressor is precisely that it does not handle these two situations in the same way.\u003c\/p\u003e\n\u003ch3\u003eA maximum airflow of 706 CFM: the positioning of the indoor module becomes crucial\u003c\/h3\u003e\n\u003cp\u003eThe DHX24NWB21S provides four airflow levels: \u003cstrong\u003e706, 647, 588 and 530 CFM\u003c\/strong\u003e. YORK indicates corresponding sound levels of \u003cstrong\u003e48, 44, 40 and 36 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWith airflow of this magnitude, the location of the indoor unit must be carefully considered.\u003c\/p\u003e\n\u003cp\u003eWe avoid sending the airflow from a 24K unit directly toward a sofa, dining table, or workstation located a short distance away whenever possible. The goal is instead to take advantage of the room's length so that the air gradually mixes before returning to the evaporator.\u003c\/p\u003e\n\u003cp\u003eIn our \u003cstrong\u003eHVAC projects in Montreal and the Montérégie\u003c\/strong\u003e, a common mistake is to select the only wall where installation seems easy without analyzing the airflow path. The system can then produce enough BTUs while creating an uncomfortable zone directly in front of the unit and a less uniform temperature at the other end.\u003c\/p\u003e\n\u003ch3\u003eA 42-inch indoor unit designed to move a lot of air\u003c\/h3\u003e\n\u003cp\u003eThe indoor module measures \u003cstrong\u003e42 × 13 × 10 in\u003c\/strong\u003e, or approximately 1,078 × 325 × 246 mm. Its net weight is approximately 38 lb. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe DHX24CSB21S outdoor unit is larger: approximately \u003cstrong\u003e39 × 31 × 17 in\u003c\/strong\u003e, or 980 × 790 × 427 mm. YORK indicates a net weight of approximately 142 lb and an outdoor sound pressure level of \u003cstrong\u003e59 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese dimensions have a direct impact on a \u003cstrong\u003eheat pump installation\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOn a narrow lot in Montreal, a condo balcony in Laval, or a home's side yard on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, sufficient space must be allowed for clearances, future servicing of the unit, air discharge, and snow management in winter.\u003c\/p\u003e\n\u003cp\u003eThe choice of outdoor support also matters. The unit must not be positioned where ice, snow, or water from a roof could regularly fall onto the appliance.\u003c\/p\u003e\n\u003ch3\u003eHeating Down to -20 °C: The Minimum Temperature Does Not Tell the Whole Story\u003c\/h3\u003e\n\u003cp\u003eThe YORK brochure indicates a heating operating range of \u003cstrong\u003e-20 °C to 24 °C\u003c\/strong\u003e for the DHX24CSB21S. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur AirGreen specifications also provide additional low-temperature capacity data: approximately \u003cstrong\u003e20,000 BTU at -8 °C\u003c\/strong\u003e, \u003cstrong\u003e19,800 BTU at -15 °C\u003c\/strong\u003e, and a displayed maximum value of \u003cstrong\u003e11,000 BTU at -20 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThese figures show why we never evaluate a heat pump solely based on the statement “heats down to -20 °C.”\u003c\/p\u003e\n\u003cp\u003eThe more important question is: \u003cstrong\u003ehow much heating capacity remains when it is actually cold?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA unit may continue operating at -20 °C while providing less capacity than at 0 °C. If the home’s heat loss exceeds the heat pump’s output at that temperature, a supplemental heating source must take over or assist with heating.\u003c\/p\u003e\n\u003cp\u003eThis distinction is particularly important for homeowners in \u003cstrong\u003eLaval, Terrebonne, Blainville, Repentigny, Longueuil, Boucherville, and other areas of Greater Montreal\u003c\/strong\u003e, where temperatures can drop well below -15 °C.\u003c\/p\u003e\n\u003ch3\u003e1\/4 in. – 5\/8 in.: Piping to Confirm Before Any Replacement\u003c\/h3\u003e\n\u003cp\u003eThe DHX24 uses a \u003cstrong\u003e1\/4 in.\u003c\/strong\u003e liquid line and a \u003cstrong\u003e5\/8 in.\u003c\/strong\u003e gas line. The brochure allows for a maximum length of \u003cstrong\u003e82 feet\u003c\/strong\u003e and a maximum elevation difference of \u003cstrong\u003e33 feet\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe 5\/8 in. diameter on the gas side is an important consideration when replacing a unit.\u003c\/p\u003e\n\u003cp\u003eWe often encounter properties where the old unit used different piping. A homeowner may then want to keep the existing lines to reduce the amount of work. This is not automatically possible.\u003c\/p\u003e\n\u003cp\u003eA 24,000 BTU heat pump from another manufacturer does not necessarily use the same diameters. We therefore check the existing lines before confirming that they can be reused.\u003c\/p\u003e\n\u003cp\u003eThe savings from keeping unsuitable piping are never worth the potential problems with refrigerant flow, oil return, and compressor operation.\u003c\/p\u003e\n\u003ch3\u003eMCA 20 A and MOP 30 A: What This Means for the Electrical Circuit\u003c\/h3\u003e\n\u003cp\u003eThe YORK X Series 24K operates on a \u003cstrong\u003e208\/230 V single-phase power supply\u003c\/strong\u003e. Its manufacturer’s specifications indicate an \u003cstrong\u003eMCA of 20 A\u003c\/strong\u003e and a maximum protection rating \u003cstrong\u003eMOCP of 30 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMCA is the minimum circuit ampacity to consider when supplying power to the equipment. MOP\/MOCP, meanwhile, determines the maximum permitted overcurrent protection according to the manufacturer’s data.\u003c\/p\u003e\n\u003cp\u003eDuring an AirGreen installation, we therefore do not limit ourselves to asking whether the customer “has 220 V.” The circuit type, its rating, its breaker, and the nameplate specifications of the actual unit delivered must match.\u003c\/p\u003e\n\u003cp\u003eThis verification becomes particularly important in some older homes in \u003cstrong\u003eMontréal\u003c\/strong\u003e or \u003cstrong\u003eLaval\u003c\/strong\u003e, where several electrical additions may have been made over the years.\u003c\/p\u003e\n\u003ch3\u003eAutomatic Louvers and Airflow Control\u003c\/h3\u003e\n\u003cp\u003eYORK’s X Series documentation indicates several functions related to air distribution, including automatic vertical and horizontal movement, according to the range’s function chart. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur AirGreen product sheet therefore correctly states:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eVertical louver: automatic\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eHorizontal louver: automatic\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor a unit capable of exceeding 700 CFM, this feature is especially useful.\u003c\/p\u003e\n\u003cp\u003eHorizontal movement can help distribute air throughout an open area rather than concentrating the entire airflow in one direction. Vertical movement makes it easier to adjust air distribution depending on whether the system is being used for cooling or heating.\u003c\/p\u003e\n\u003cp\u003eHowever, adjusting the louvers cannot correct poor placement. If a heat pump is installed in a hallway with the expectation that it will heat three bedrooms evenly while their doors remain closed, the problem is not the remote-control setting: it is the project design.\u003c\/p\u003e\n\u003ch3\u003eOptional Wi-Fi with the CS532AH adapter\u003c\/h3\u003e\n\u003cp\u003eThe X Series can be controlled through the \u003cstrong\u003eEWPE Smart App\u003c\/strong\u003e, but connectivity requires the \u003cstrong\u003eCS532AH adapter\u003c\/strong\u003e for the P and X Series. YORK also specifies that the \u003cstrong\u003eDRCPX\u003c\/strong\u003e wireless remote control comes standard with the X Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe like to clarify this distinction before installation because “Wi-Fi compatible” and “built-in Wi-Fi” do not mean the same thing.\u003c\/p\u003e\n\u003cp\u003eA homeowner who wants to schedule or control their unit remotely must plan for the necessary module rather than assume that the function is already installed in the wall-mounted air conditioner.\u003c\/p\u003e\n\u003ch3\u003eConstruction, Defrosting, and Practical Features of the X Series\u003c\/h3\u003e\n\u003cp\u003eYORK presents the X Series as an Inverter heat pump equipped with a \u003cstrong\u003erugged steel chassis\u003c\/strong\u003e, a corrosion-resistant coating, and quiet operation. The manufacturer also mentions a demand-initiated defrost strategy to limit unnecessary energy consumption associated with defrosting. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDefrosting is particularly relevant in Québec.\u003c\/p\u003e\n\u003cp\u003eWhen the outdoor unit operates in heating mode, the outdoor coil may accumulate frost. The system must periodically reverse its cycle to clear the coil. The frequency depends on outdoor conditions, particularly temperature and humidity.\u003c\/p\u003e\n\u003cp\u003eA heat pump that defrosts in winter does not necessarily indicate a problem. However, excessive ice accumulation that does not disappear, abnormally frequent cycles, or a unit with obstructed winter drainage warrant an inspection.\u003c\/p\u003e\n\u003ch2\u003eWhat we verify at AirGreen before recommending this 24K YORK in Montréal, Laval, Longueuil, the North Shore, or the South Shore\u003c\/h2\u003e\n\u003ch3\u003eA 24K capacity is not a shortcut to avoid a load calculation\u003c\/h3\u003e\n\u003cp\u003eA large heat pump does not compensate for poor selection.\u003c\/p\u003e\n\u003cp\u003eFor example, we encounter open-plan ground floors where a capacity in this category makes perfect sense: large area, numerous windows, an open kitchen, and strong solar exposure. In other properties, the same unit would be oversized despite a similar area because the building’s insulation and orientation are different.\u003c\/p\u003e\n\u003cp\u003eWe therefore analyze the room as a whole: building envelope, windows, orientation, floors, air volume, communication between zones, and the system’s actual use.\u003c\/p\u003e\n\u003cp\u003eThis is particularly relevant for a model whose range goes down to approximately \u003cstrong\u003e6,824 BTU\/h\u003c\/strong\u003e. This modulation provides flexibility, but it does not make oversizing inconsequential.\u003c\/p\u003e\n\u003ch3\u003eAn important nuance regarding ENERGY STAR\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specification sheet currently provided classifies this model as \u003cstrong\u003eENERGY STAR: No\u003c\/strong\u003e and \u003cstrong\u003eENERGY STAR Cold Climate: No\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe November 2020 YORK brochure nevertheless contains a different note: it states that all models in this series presented in the table were ENERGY STAR, except the 18K DHX18 models. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference illustrates why we always distinguish between \u003cstrong\u003ea former manufacturer certification\u003c\/strong\u003e and \u003cstrong\u003ea device’s current eligibility for a Québec program\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a grant application in 2026, we recommend checking the exact combination against the current lists and criteria rather than relying on the logo appearing in a 2020 brochure.\u003c\/p\u003e\n\u003cp\u003eThe attached brochure is indeed dated \u003cstrong\u003eNovember 2020\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eSEER 23 or SEER 20: once again, the two figures do not describe the same thing\u003c\/h3\u003e\n\u003cp\u003eThe family title indicates \u003cstrong\u003e23 SEER\u003c\/strong\u003e because the X Series reaches up to 23 SEER in certain capacities. The brochure also specifies that the X Series is a range “up to 23 SEER.” \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the \u003cstrong\u003eDHX24NWB21S + DHX24CSB21S\u003c\/strong\u003e, however, the published rating is \u003cstrong\u003e20 SEER\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor us, this is not an administrative detail. When a customer compares a YORK heat pump with another brand, the performance of the \u003cstrong\u003eexact combinations\u003c\/strong\u003e must be compared; otherwise, two products may appear identical on paper even though they are not.\u003c\/p\u003e\n\u003cp\u003eThe same caution applies to the newer \u003cstrong\u003eSEER2 and HSPF2\u003c\/strong\u003e ratings: an older brochure using SEER\/HSPF should not be arbitrarily converted into SEER2\/HSPF2 values.\u003c\/p\u003e\n\u003ch3\u003eWarranty: understanding the difference between the standard warranty and the registered extended warranty\u003c\/h3\u003e\n\u003cp\u003eOur AirGreen listing presents this model with a warranty of \u003cstrong\u003e10 years on the compressor, 10 years on parts, 0 years on labor\u003c\/strong\u003e, with the possibility of additional coverage.\u003c\/p\u003e\n\u003cp\u003eYORK documentation explains that the standard warranty for this generation was \u003cstrong\u003e7 years on the compressor and 5 years on parts\u003c\/strong\u003e, and that eligible residential registration allowed it to be extended to \u003cstrong\u003e10 years on the compressor and 10 years on parts\u003c\/strong\u003e. A 10-year labor warranty option was also available subject to additional conditions. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore always recommend keeping the invoice, serial numbers, and registration confirmation after an \u003cstrong\u003eHVAC installation\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eMaintenance remains important for a large wall-mounted unit\u003c\/h3\u003e\n\u003cp\u003eA unit capable of moving \u003cstrong\u003e706 CFM\u003c\/strong\u003e depends directly on the cleanliness of its heat exchanger, filters, and blower wheel.\u003c\/p\u003e\n\u003cp\u003eOver time, dust can accumulate on the blower wheel. The owner may then gradually notice reduced airflow, a different sound level, or less even distribution throughout the room.\u003c\/p\u003e\n\u003cp\u003eThe condensate drain must also remain clear. In summer, a unit of this capacity can remove a significant amount of moisture from the air. A clogged or improperly sloped drain can cause water to leak indoors.\u003c\/p\u003e\n\u003cp\u003eProfessional \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e therefore does not consist solely of rinsing the visible filters. Depending on the system’s condition, the evaporator, blower wheel, condensate pan and drainage may require a more thorough inspection and cleaning.\u003c\/p\u003e\n\u003ch3\u003eWhy Have This YORK Installed by AirGreen\u003c\/h3\u003e\n\u003cp\u003eThe YORK Series X 24K has interesting features, but its actual performance depends directly on the installation.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, our work does not stop at mounting the evaporator on the wall. We must verify the capacity, the piping route, the diameter \u003cstrong\u003e1\/4–5\/8\u003c\/strong\u003e, the drain, the electrical supply, the condenser location, the airflow path and the customer’s expectations for winter heating.\u003c\/p\u003e\n\u003cp\u003eWe work daily in the various types of buildings found in \u003cstrong\u003eMontreal, Laval, Longueuil, on the North Shore, the South Shore and in Montérégie\u003c\/strong\u003e: single-family homes, plexes, condos, commercial premises and properties where available space can sometimes make outdoor installation more difficult.\u003c\/p\u003e\n\u003cp\u003eFor this \u003cstrong\u003eYORK Series X Mini Split\u003c\/strong\u003e, we primarily note that it is a 24K-class unit offering a published capacity of \u003cstrong\u003e22,000 BTU\/h in cooling and 23,000 BTU\/h in heating\u003c\/strong\u003e, modulation reaching 27,296 BTU\/h in cooling and 30,708 BTU\/h in heating, a 208\/230 V power supply, an MCA of 20 A, maximum protection of 30 A and 1\/4–5\/8 piping. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eContact AirGreen to confirm whether the YORK Series X 24K is truly suitable for your space\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eYORK Series X 23 SEER | 24000 BTU Mini Split\u003c\/strong\u003e can be a very interesting option for a large area when properly sized. Its inverter technology, modulation range, high airflow, automatic louvers, heating down to -20 °C and optional Wi-Fi give it appreciable versatility.\u003c\/p\u003e\n\u003cp\u003eBut the right question is never simply “Is a 24,000 BTU unit large enough?” Instead, we seek to determine \u003cstrong\u003ewhat capacity your building actually requires and how to install the unit to use that capacity properly\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen for a quote or an assessment of your ductless heat pump project in Montreal, Laval, Longueuil, on the North Shore or South Shore. We can verify whether this YORK Series X matches your heating load, electrical installation and heating expectations before you finalize your choice.\u003c\/strong\u003e\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120414470436,"sku":"DHX24CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_MINI_SPLIT_YORK_SERIE_X_24000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_e5955463-c9ca-406b-9eee-e1653f4c846d.png?v=1789426073"},{"product_id":"thermopompe-murale-york-serie-z-28-seer-9000-btu-montreal-laval-rive-sud","title":"YORK Z Series Wall-Mounted Heat Pump 28 SEER | 9000 BTU | Montreal, Laval, South Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA well-served zone rather than a randomly selected capacity\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e9,000 BTU YORK Z Series wall-mounted heat pump\u003c\/strong\u003e combines a variable-speed compressor, included WiFi control, and several fan settings in a single-zone system. It pairs the \u003cstrong\u003eDHZ09CSB21S\u003c\/strong\u003e outdoor unit with the \u003cstrong\u003eDHZ09NWB21S\u003c\/strong\u003e indoor unit: a combination designed to heat and cool a defined area without a duct network. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we approach its installation in \u003cstrong\u003eMontreal\u003c\/strong\u003e, \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, on the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e, and on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e by starting with a practical question: which space actually needs to become more comfortable? An open living room, an enclosed bedroom, and a divided-level floor do not require the same approach. We therefore clarify the intended rooms, usage habits, and building constraints before recommending this capacity.\u003c\/p\u003e\n\u003ch3\u003eSpecifications of the 9,000 BTU YORK combination\u003c\/h3\u003e\n\u003cp\u003eTo properly identify this system, we use both model numbers rather than only the name “Z Series.” The specifications in the technical documentation are as follows. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eFeature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eYORK Z Series — 9,000 BTU\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor unit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDHZ09CSB21S\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndoor unit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDHZ09NWB21S\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal cooling capacity\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\u003eNominal heating capacity\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e9,000 BTU\/h\u003c\/strong\u003e, under test conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeasonal cooling efficiency\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e28 SEER\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstantaneous cooling efficiency\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e15 EER\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeasonal heating efficiency\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e10.5 HSPF\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdvertised minimum outdoor temperature in heating mode\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-410A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectivity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eWiFi included\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndoor sound pressure\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e22 to 41 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor sound pressure\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e53 dB(A)\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\u003eOur commercial sheet also lists reference \u003cstrong\u003eAHRI 8578585\u003c\/strong\u003e. We retain this identification in the product analysis while distinguishing between efficiency data, warranty terms, and potential eligibility for financial assistance.\u003c\/p\u003e\n\u003ch3\u003eA rating of 28 SEER, not to be confused with SEER2\u003c\/h3\u003e\n\u003cp\u003eThe documentation for this combination clearly lists \u003cstrong\u003e28 SEER\u003c\/strong\u003e, \u003cstrong\u003e15 EER\u003c\/strong\u003e, and \u003cstrong\u003e10.5 HSPF\u003c\/strong\u003e. We do not convert these values to SEER2, EER2, or HSPF2: these new designations correspond to revised testing methods. Directly comparing a unit rated at 28 SEER with a unit rated at 28 SEER2 is therefore not an equivalent comparison. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSEER describes efficiency over a standardized cooling season. EER instead describes efficiency under specific conditions. HSPF concerns the heating season. These ratings make it possible to compare equipment evaluated using the same method, but they do not, on their own, predict a residence's energy bill. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a quotation, we therefore recommend comparing three elements separately: \u003cstrong\u003edocumented efficiency\u003c\/strong\u003e, \u003cstrong\u003ecapacity suited to the home\u003c\/strong\u003e, and \u003cstrong\u003ethe cost of the necessary work\u003c\/strong\u003e. A good seasonal efficiency rating does not replace proper sizing or careful installation.\u003c\/p\u003e\n\u003ch3\u003eA capacity of 9,000 BTU does not correspond to a universal floor area\u003c\/h3\u003e\n\u003cp\u003eWe do not recommend a \u003cstrong\u003e9,000 BTU heat pump\u003c\/strong\u003e solely because a room has a certain number of square feet. The calculation must take into account windows, insulation, solar exposure, ceiling height, and heat losses or gains. Natural Resources Canada specifically recommends assessing heating and cooling loads to select equipment. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor example, imagine two spaces of identical size: the first has large windows exposed to the sun; the second is better protected and located between two heated dwellings. We would not automatically assign them the same unit without examining these differences.\u003c\/p\u003e\n\u003cp\u003eWe also assess the airflow path. For a project intended to serve a main room and several bedrooms that are usually closed, we ask that the goal be specified room by room. This approach avoids presenting a single wall-mounted unit as a guaranteed solution for every room in a home, regardless of its layout.\u003c\/p\u003e\n\u003ch3\u003eHeating down to −30 °C: an operating range, not a promise of constant capacity\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e−30 °C\u003c\/strong\u003e temperature announced for this model represents a heating operating limit. It does not mean that the unit provides its nominal capacity of 9,000 BTU\/h under all outdoor conditions. The catalog also specifies that nominal heating capacities are established under test conditions different from extreme cold. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore distinguish three pieces of information: the temperature at which the unit can operate, the amount of heat it provides at that temperature, and the electricity required to produce it. Without precise capacity and efficiency data at a given temperature, we do not present a numerical result as established fact.\u003c\/p\u003e\n\u003cp\u003eFor a residence in \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, or the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e, we also assess the existing heating system. A backup system may still be necessary when the building's needs exceed the heat supplied by the heat pump. Its presence and use must be part of the initial choice, rather than improvised after installation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eUseful settings for adapting air distribution\u003c\/h3\u003e\n\u003cp\u003eThe Z Series has \u003cstrong\u003eseven fan speeds\u003c\/strong\u003e, a remote control, and standard WiFi connectivity. The louvers allow the airflow direction to be adjusted, providing more options for adapting operation to the unit's location. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe stated indoor airflow ranges from \u003cstrong\u003e206 to 412 cubic feet per minute\u003c\/strong\u003e, depending on the speed. Similarly, indoor sound pressure ranges from \u003cstrong\u003e22 to 41 dB(A)\u003c\/strong\u003e: the minimum value does not represent all operating modes. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWhen presenting the settings, we prioritize a demonstration in the room: airflow direction, selected speed, and occupant position. For a bedroom or office, we particularly aim to avoid airflow directed straight toward the bed or workstation. The selected setting should correspond to the actual use of the space, not just the lowest sound level shown in a brochure.\u003c\/p\u003e\n\u003ch2\u003eThe AirGreen installation: technical choices that matter after start-up\u003c\/h2\u003e\n\u003ch3\u003eAllow the necessary space around both units\u003c\/h3\u003e\n\u003cp\u003eThe dimensions must be read in the correct order. According to the technical drawings, the indoor unit measures approximately \u003cstrong\u003e37.8 × 8.0 × 12.6 inches\u003c\/strong\u003e, in \u003cstrong\u003ewidth × depth × height\u003c\/strong\u003e. The outdoor unit measures approximately \u003cstrong\u003e35.4 × 14.9 × 23.5 inches\u003c\/strong\u003e, in the same order. These measurements describe the units themselves, without the necessary clearance spaces. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore do not choose a location simply because the casing fits between two obstacles. Access for maintenance, required clearances, and airflow must remain possible. Outdoors, the support must also account for snow accumulation and site conditions. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a narrow courtyard in \u003cstrong\u003eMontréal\u003c\/strong\u003e or on a balcony, we review the proposed location, access points, and connection routing together before confirming the work.\u003c\/p\u003e\n\u003ch3\u003ePower supply and piping suitable for this model\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer specifies a \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e power supply, a \u003cstrong\u003eminimum circuit ampacity of 12 A\u003c\/strong\u003e, and \u003cstrong\u003emaximum overcurrent protection of 15 A\u003c\/strong\u003e. The refrigeration connections are \u003cstrong\u003e1\/4 in. for the liquid line\u003c\/strong\u003e and \u003cstrong\u003e1\/2 in. for the gas line\u003c\/strong\u003e. The stated maximum length is \u003cstrong\u003e15 metres\u003c\/strong\u003e, with a maximum elevation difference of \u003cstrong\u003e10 metres\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis information is used to prepare the project; it does not replace verification of the nameplate and circuit sizing by the responsible professional. The conductor size must comply with the requirements applicable to the installation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a replacement, we also request an inspection of the existing lines before planning to reuse them. In our quote, we prefer to clearly distinguish between the components retained and those replaced. This clarification prevents a replacement price from being interpreted as automatically including all possible adaptations.\u003c\/p\u003e\n\u003ch3\u003eThe technical steps to plan for during the installation\u003c\/h3\u003e\n\u003cp\u003eOur preparation of an \u003cstrong\u003eHVAC installation\u003c\/strong\u003e for this YORK unit includes the following steps, in accordance with the manufacturer's requirements:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm the locations and supports\u003c\/strong\u003e, including clearances, service access, and the routing of the connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall and insulate the lines\u003c\/strong\u003e, make the connections, and prepare the condensate drainage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck for leaks and evacuate the system\u003c\/strong\u003e, according to the prescribed procedures for the refrigeration circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerform the operational tests\u003c\/strong\u003e, check water drainage, and explain the controls and routine maintenance. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWe want the owner to know what was installed, where the accessible components are located, and which signs warrant a service call. Returning the unit to operation must not be limited to confirming that the unit blows air.\u003c\/p\u003e\n\u003ch3\u003eTwo AirGreen projects illustrating the checks to be performed\u003c\/h3\u003e\n\u003cp\u003eThe following projects involve Sharp units, not this YORK unit. They illustrate situations encountered by our team during wall-mounted installations; they are not performance tests of the Z Series.\u003c\/p\u003e\n\u003ch4\u003eIn Côte-des-Neiges: a leak detected in the existing lines\u003c\/h4\u003e\n\u003cp\u003eDuring a replacement on a balcony in \u003cstrong\u003eCôte-des-Neiges, Montréal\u003c\/strong\u003e, we inspected the existing piping and found a leak. The lines were replaced as part of the project. The length included with this installation allowed the replacement to be completed without an additional charge for this portion of the piping. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur takeaway from this project is a simple preparation rule: do not decide to keep the existing lines solely because they are already in place. For a YORK Z Series system, we want their condition and compatibility to be examined before finalizing the price and scope of work.\u003c\/p\u003e\n\u003ch4\u003eIn Laval-des-Rapides: a location considered together with its drainage\u003c\/h4\u003e\n\u003cp\u003eIn a residence in \u003cstrong\u003eLaval-des-Rapides\u003c\/strong\u003e, we installed a wall-mounted unit in an interior stairwell. The project allowed condensate to drain by gravity, without an additional pump. We also adjusted the louvers and checked the airflow. The project report indicates that the occupants were pleased with the comfort and quiet operation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe do not generalize this solution to all homes. Instead, we use this example to show why the location, drainage, and indoor configuration must be considered together.\u003c\/p\u003e\n\u003ch3\u003eAccessible maintenance, with limits to observe\u003c\/h3\u003e\n\u003cp\u003eThe manual recommends cleaning the filters \u003cstrong\u003eevery three months\u003c\/strong\u003e, more frequently when the environment is dusty. We recommend turning off the power before carrying out the work, following the manufacturer’s procedure, and allowing the filters to dry before reinstalling them. Avoid getting electrical components wet or touching the fins. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe also distinguish normal phenomena from situations requiring intervention. In heating mode, steam may appear around the outdoor unit during defrosting. However, a burning smell, repeated circuit-breaker trips, or an indoor water leak warrant turning off the unit and calling a professional. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTo facilitate an \u003cstrong\u003eAirGreen service call\u003c\/strong\u003e, we ask that you keep the model numbers, note the mode used, and photograph any displayed code. This allows us to begin the assessment with precise information rather than just the description “the unit no longer works.”\u003c\/p\u003e\n\u003ch3\u003eThe 10-10-0 warranty, explained before purchase\u003c\/h3\u003e\n\u003cp\u003eOur fact sheet presents a warranty of \u003cstrong\u003e10 years on the compressor, 10 years on parts, and no labor coverage included in this plan\u003c\/strong\u003e. However, the stated duration must be read together with its conditions.\u003c\/p\u003e\n\u003cp\u003eThe warranty document for this generation notably provides extended ten-year coverage for parts and the compressor on certain residential installations, subject to registration by an authorized contractor within \u003cstrong\u003e60 days of installation\u003c\/strong\u003e. The conditions differ, in particular, depending on the application and product generation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore specify in the offer the coverage applicable to the equipment sold, the registration procedures, and the additional protections offered. When a labor warranty is being considered, we also recommend checking how travel and diagnosis are handled rather than relying solely on the number of years advertised.\u003c\/p\u003e\n\u003ch3\u003eThe installed price must reflect the actual work\u003c\/h3\u003e\n\u003cp\u003eWe determine the price of this \u003cstrong\u003eYORK wall-mounted heat pump\u003c\/strong\u003e after defining the project. To prepare a comparable quote, we specify, among other things, the length of the connections, the outdoor support, electrical work, drainage, access requirements, and the possible removal of an old unit.\u003c\/p\u003e\n\u003cp\u003eWe encourage homeowners to compare the content of offers, not just their total. A proposal should make it possible to understand what is included, the planned adaptations, and the selected options. At AirGreen, we provide a final offer before work begins.\u003c\/p\u003e\n\u003cp\u003eFor a request in \u003cstrong\u003eLongueuil\u003c\/strong\u003e, \u003cstrong\u003eBoucherville\u003c\/strong\u003e, elsewhere on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, or in Greater Montreal, photos of the desired installation locations, the existing unit, and the electrical panel can help prepare for this discussion.\u003c\/p\u003e\n\u003ch3\u003eLogisVert: do not include unconfirmed financial assistance\u003c\/h3\u003e\n\u003cp\u003eOur product sheet indicates “no” for the \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e and \u003cstrong\u003eENERGY STAR for cold climates\u003c\/strong\u003e sections. We therefore do not present this combination as automatically eligible for a subsidy.\u003c\/p\u003e\n\u003cp\u003eHydro-Québec specifies that heat pumps installed \u003cstrong\u003eas of November 26, 2025\u003c\/strong\u003e must be ENERGY STAR certified to qualify for LogisVert financial assistance. We therefore verify the exact combination and applicable criteria before including assistance in the project cost calculation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e28 SEER\u003c\/strong\u003e rating, the claim of heating down to \u003cstrong\u003e−30 °C\u003c\/strong\u003e, and an AHRI reference do not replace this assessment. Our goal is to present an understandable budget without deducting an amount that the homeowner may ultimately not receive.\u003c\/p\u003e\n\u003ch3\u003ePlan your project with AirGreen\u003c\/h3\u003e\n\u003cp\u003eTo choose the \u003cstrong\u003eYORK Z Series 9,000 BTU\u003c\/strong\u003e, we bring together the factors that matter: zone requirements, unit locations, connections, supplemental heating, warranty conditions, and scope of work. We prioritize an explained recommendation and a detailed quote over a choice based solely on the number of BTUs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen at 514-316-2973 or at \u003ca class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003esales@airgreen.ca\u003c\/a\u003e to obtain a quote and have your wall-mounted heat pump project assessed in Montreal, Laval, Longueuil, on the North Shore, or on the South Shore.\u003c\/strong\u003e\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120449040676,"sku":"DHZ09CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_MURALE_YORK_SERIE_Z_9000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_6c9ef7e8-852f-47a0-afb2-b557df4700a2.png?v=1789426160"},{"product_id":"thermopompe-murale-york-serie-z-28-seer-12000-btu-montreal-laval-rive-sud","title":"YORK Z Series Wall-Mounted Heat Pump 28 SEER | 12000 BTU | Montreal, Laval, South Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eTargeted comfort for the living room, with an installation adapted to your building\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eFor an open-concept area in \u003cstrong\u003eMontreal\u003c\/strong\u003e, a floor in \u003cstrong\u003eLaval\u003c\/strong\u003e, or a living space on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, we look for more than a unit capable of producing cool air. We assess airflow between rooms, noise near occupants, heating needs, and the outdoor unit’s location. These factors determine the suitability of a \u003cstrong\u003e12,000 BTU wall-mounted heat pump\u003c\/strong\u003e far more reliably than an approximate match between floor area and capacity.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we evaluate the \u003cstrong\u003eYORK Z Series\u003c\/strong\u003e based on its exact combination: the outdoor unit \u003cstrong\u003eDHZ12CSB21S\u003c\/strong\u003e and the indoor unit \u003cstrong\u003eDHZ12NWB21S\u003c\/strong\u003e. This single-zone system combines a variable-speed compressor, Wi-Fi control, and motorized louvers to adapt operation to the needs of the served zone. However, one clarification is necessary from the outset: the efficiency of this combination is not identical to the maximum figure presented in the range’s name. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eZ Series 28 SEER: the 12,000 BTU combination is rated at 23 SEER\u003c\/h3\u003e\n\u003cp\u003eThe name \u003cstrong\u003e“Z Series 28 SEER”\u003c\/strong\u003e refers to a range whose configurations can reach 28 SEER. For the \u003cstrong\u003eDHZ12NWB21S \/ DHZ12CSB21S\u003c\/strong\u003e system, YORK instead indicates an efficiency rating of \u003cstrong\u003e23 SEER\u003c\/strong\u003e. The 9,000 BTU system in this same series is presented as 28 SEER in the manufacturer’s sales catalog. We therefore distinguish the range’s trade name from the specifications of the selected unit. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical data sheet for this 12,000 BTU combination also specifies \u003cstrong\u003e12.7 EER\u003c\/strong\u003e and \u003cstrong\u003e10.5 HSPF\u003c\/strong\u003e. These values are published according to the former ratings; we do not present them as SEER2, EER2, or HSPF2 values, which correspond to a different evaluation method. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTo illustrate the value of seasonal efficiency, consider a theoretical comparison between two systems rated under the same SEER protocol. With identical seasonal cooling requirements, going from 16 to 23 SEER corresponds, according to these ratings, to approximately \u003cstrong\u003e30% less electricity for air conditioning\u003c\/strong\u003e: the calculation is 1 − 16 ÷ 23. We use this example to explain the ratings, not to promise a 30% reduction in a residence’s total utility bill. Heating, usage habits, and building characteristics require a separate analysis.\u003c\/p\u003e\n\u003ch3\u003eSpecifications for the YORK DHZ12CSB21S \/ DHZ12NWB21S system\u003c\/h3\u003e\n\u003cp\u003eWe use the following data to identify the system and prepare the technical assessment. The published capacity ranges do not represent guaranteed output at all outdoor temperatures. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eFeature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSystem data\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor unit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDHZ12CSB21S\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndoor unit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDHZ12NWB21S\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAHRI number listed on our sheet\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e8578589\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eSingle-zone, wall-mounted indoor unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated cooling capacity\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\u003eRated heating capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e13,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePublished cooling capacity range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e2,900 to 15,354 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePublished heating capacity range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3,071 to 18,766 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnnounced outdoor operating limit for heating\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-410A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectivity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eWi-Fi included\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndoor fan speeds\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e7\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePublished indoor airflow\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e265 to 471 ft³\/min\u003c\/strong\u003e, depending on speed\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\u003eThese references are also useful during \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e, when looking for parts, or when checking the warranty. We recommend keeping the model and serial numbers of both units with the installation invoice.\u003c\/p\u003e\n\u003ch3\u003eAdjustable airflow to find the right balance between distribution and quiet operation\u003c\/h3\u003e\n\u003cp\u003eOur product sheet indicates indoor sound pressure ranging from \u003cstrong\u003e23 to 42 dB(A)\u003c\/strong\u003e, depending on operating conditions and fan speed. We therefore do not present 23 dB(A) as the unit’s constant noise level. This minimum corresponds to quiet operation, while a higher airflow rate is accompanied by a more noticeable sound level.\u003c\/p\u003e\n\u003cp\u003eFor a home-office workstation near the unit, we will look for a setting that avoids directing the airflow toward the occupant. For a longer open area, we will instead assess the air reach and louver orientation. The \u003cstrong\u003evertical and horizontal\u003c\/strong\u003e automatic controls allow this distribution to be adjusted without changing the unit’s location.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eincluded Wi-Fi\u003c\/strong\u003e connectivity adds a control option, but we always distinguish between the presence of the module and its setup. During the handover, we verify the app compatible with the supplied module and the conditions for connecting to the home network.\u003c\/p\u003e\n\u003ch3\u003eHeating down to −30 °C: an operating limit, not a constant capacity\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e−30 °C\u003c\/strong\u003e designation refers to the minimum outdoor operating temperature for heating announced by YORK. It does not mean that the unit automatically maintains its rated capacity of 13,000 BTU\/h at that temperature. The summary sheet does not provide detailed capacities and performance coefficients at −8 °C, −15 °C, or −30 °C. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTo size the heating system, we must bring together two pieces of information: the building’s heating needs in cold weather and the heat the unit can actually provide under those conditions. A stated minimum temperature does not replace this comparison.\u003c\/p\u003e\n\u003cp\u003eWe also assess the role of the existing heating system. In a home equipped with electric baseboards, our analysis must specify which rooms are served by the heat pump and which remain dependent on their local heating. We avoid recommending the removal of supplemental heating based solely on the “−30°C” rating.\u003c\/p\u003e\n\u003ch3\u003eA single wall-mounted unit does not create multiple independent zones\u003c\/h3\u003e\n\u003cp\u003eWe pay particular attention to the interior layout before recommending a \u003cstrong\u003e12,000 BTU YORK wall-mounted heat pump\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eConsider a planning scenario: a living room and dining room are largely connected, while two bedrooms open onto a corridor. We can consider a wall-mounted unit for the open space, but we would not promise identical temperatures in the bedrooms when their doors are closed. The issue to address would then be air distribution, not necessarily a lack of BTUs.\u003c\/p\u003e\n\u003cp\u003eOur assessment includes insulation, windows, solar exposure, ceilings, and other heat sources. We already apply this approach in our documented residential projects in Montreal, where capacity and airflow are assessed together. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eA YORK installation designed for the building, budget, and maintenance\u003c\/h2\u003e\n\u003ch3\u003eCheck the dimensions in the correct order\u003c\/h3\u003e\n\u003cp\u003eTo prepare the location, we use the order \u003cstrong\u003ewidth × depth × height\u003c\/strong\u003e. YORK diagrams indicate the following approximate dimensions:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eUnit\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eApproximate dimensions — W × D × H\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndoor unit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e37.8 × 8.0 × 12.6 in.\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor unit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e35.4 × 14.9 × 23.5 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 order of the dimensions deserves particular attention: the indoor unit is approximately 8 inches deep, not 13 inches. The cabinet dimensions do not include all the clearances required for installation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore check the available space above and on the sides, the panel opening required for maintenance, and the routing of the lines. We avoid selecting a location simply because the unit appears to fit between two décor elements. Final clearances must comply with the model’s installation instructions. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003ePlan the piping before definitively choosing the location\u003c\/h3\u003e\n\u003cp\u003eThis combination uses a \u003cstrong\u003e1\/4 in.\u003c\/strong\u003e liquid line and a \u003cstrong\u003e1\/2 in.\u003c\/strong\u003e gas line. YORK publishes a maximum total piping length of \u003cstrong\u003e20 metres\u003c\/strong\u003e and a maximum height difference of \u003cstrong\u003e10 metres\u003c\/strong\u003e. These limits are used to verify route feasibility; they do not describe the lengths included in a quotation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe examine the complete route rather than just the straight-line distance. An upper-floor installation may require an exterior drop, changes in direction, and routing around a balcony. For a replacement, we inspect the existing lines before proposing to reuse them.\u003c\/p\u003e\n\u003cp\u003eWe also plan the condensate drainage. The manual specifies routing that prevents the drain hose from rising. When the configuration does not allow for proper gravity drainage, we must consider another solution rather than concealing a problematic route behind a finish. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eUnderstanding the electrical requirements: 13 A and 20 A do not mean the same thing\u003c\/h3\u003e\n\u003cp\u003eThe nominal voltage published by YORK is \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e. The other two important values are the \u003cstrong\u003eminimum circuit ampacity of 13 A\u003c\/strong\u003e, or MCA, and the \u003cstrong\u003emaximum overcurrent protection of 20 A\u003c\/strong\u003e, or MOP\/MOCP. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe use the former for circuit sizing and the latter to comply with the protection limit specified by the manufacturer. They do not represent a measurement of the heat pump's continuous power consumption.\u003c\/p\u003e\n\u003cp\u003eWe have the wiring, power circuit, and protective devices verified according to the nameplate and the requirements applicable to the job site. The presence of an available circuit in the panel alone is not enough to confirm that it is suitable for this unit. The YORK manual expressly requires compliance with local electrical requirements. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eAn AirGreen project in Westmount illustrating the importance of proper support\u003c\/h3\u003e\n\u003cp\u003eIn an AirGreen project documented in \u003cstrong\u003eWestmount\u003c\/strong\u003e, we installed a \u003cstrong\u003eHitachi airHome 400\u003c\/strong\u003e on a wooden balcony. The project required a guardrail-independent metal support, a compact routing path for the lines, and particular attention to vegetation, occupant access, and service access. It involved a different unit, but the building constraints were decisive. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFrom this type of project, we draw a practical design rule: the outdoor unit must be assessed in relation to its immediate surroundings. A chair, planter, or railing can change the space actually available after the work is complete.\u003c\/p\u003e\n\u003cp\u003eFor a \u003cstrong\u003eYORK Z Series\u003c\/strong\u003e project, we revisit this analysis using the model's specific dimensions and requirements. We look for a location that also allows for future maintenance, rather than an installation designed solely to be compact on the day of delivery.\u003c\/p\u003e\n\u003ch3\u003eCommissioning is not limited to confirming that air is coming out\u003c\/h3\u003e\n\u003cp\u003eThe Z Series manual specifically calls for leak checks, evacuation, and testing after installation. We incorporate these checks into the commissioning preparation, along with verifying drainage and connections. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe then provide occupants with guidance tailored to their needs: mode selection, fan-speed adjustment, louver direction, and filter access. Our goal is for them to understand daily operation, not merely receive the remote control.\u003c\/p\u003e\n\u003cp\u003eWe also recommend keeping a clear photograph of the nameplates. This precaution simplifies system identification when requesting service.\u003c\/p\u003e\n\u003ch3\u003eA quoted price that specifies the work and warranties\u003c\/h3\u003e\n\u003cp\u003eThe price of this \u003cstrong\u003eYORK wall-mounted heat pump\u003c\/strong\u003e is available upon request. We prepare the estimate based on the two units, the refrigerant line route, electrical work, outdoor support, drainage, and access conditions. A replacement with a straightforward route should not be compared without distinction to a high-level installation requiring new pathways.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we provide a \u003cstrong\u003efree on-site estimate\u003c\/strong\u003e and a final quote before the work begins. This approach clarifies what is included rather than leaving accessories and modifications uncertain. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur documentation presents a \u003cstrong\u003e10-10-0-year\u003c\/strong\u003e warranty: ten years for the compressor, ten years for parts, and no labor coverage included in this indication. Additional protection may be available. We specify the applicable conditions, any registration requirements, and the selected labor coverage in the offer.\u003c\/p\u003e\n\u003ch3\u003eLogisVert: do not include unconfirmed financial assistance in the budget\u003c\/h3\u003e\n\u003cp\u003eOur product sheet identifies this system as \u003cstrong\u003enot ENERGY STAR® certified\u003c\/strong\u003e and not ENERGY STAR® certified for cold climates. We therefore do not present a subsidy as guaranteed for this model.\u003c\/p\u003e\n\u003cp\u003eHydro-Québec requires \u003cstrong\u003eENERGY STAR®\u003c\/strong\u003e certification for heat pumps installed on or after \u003cstrong\u003eNovember 26, 2025\u003c\/strong\u003e to be eligible for financial assistance under \u003cstrong\u003eLogisVert\u003c\/strong\u003e. An attractive SEER rating or an AHRI number does not replace this requirement. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBefore calculating a post-rebate cost, we verify the combination and installation date in the official tool, particularly using \u003cstrong\u003eAHRI 8578589\u003c\/strong\u003e. When financial assistance is a priority, we compare the project cost with that of a solution whose eligibility has been confirmed. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eMaintaining the system and providing the right information when there is a problem\u003c\/h3\u003e\n\u003cp\u003eWe recommend ensuring easy access to the filters and following the maintenance instructions for the unit. The manual specifically reminds users not to operate the unit without its filters and to leave work on electrical components to qualified personnel. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTo prepare a \u003cstrong\u003eservice call\u003c\/strong\u003e, we ask for useful information: the selected mode, the set temperature, the room concerned, and a photograph of the displayed code, if there is one. A description such as “air is circulating, but the room is not cooling” helps guide the assessment better than simply mentioning a breakdown.\u003c\/p\u003e\n\u003cp\u003eWe also recommend keeping the outdoor area clear and accessible. In our Westmount project, the proximity of vegetation and furniture clearly illustrated why using the balcony had to remain compatible with the equipment's needs after installation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eLet's talk about your YORK project in Greater Montreal\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we help you assess the model, its capacity, the work required, and the actual budget. For a \u003cstrong\u003ewall-mounted heat pump installation in Montreal, Laval, Longueuil, the North Shore, or the South Shore\u003c\/strong\u003e, contact us at \u003cstrong\u003e514-316-2973\u003c\/strong\u003e or write to \u003cstrong\u003e\u003ca class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003esales@airgreen.ca\u003c\/a\u003e\u003c\/strong\u003e. We will prepare a quote with you specifying the equipment, inclusions, and applicable warranties.\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120449106212,"sku":"DHZ12CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_MURALE_YORK_SERIE_Z_12000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_0a44cb88-6a77-467b-bb90-4b6b374af6e0.png?v=1789426160"},{"product_id":"thermopompe-murale-york-serie-z-28-seer-18000-btu-montreal-laval-rive-sud","title":"YORK Z Series Wall-Mounted Heat Pump 28 SEER | 18000 BTU | Montreal, Laval, South Shore","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eAn 18,000 BTU heat pump to choose based on the room, the desired heating, and installation conditions\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eFor a living area in \u003cstrong\u003eMontreal\u003c\/strong\u003e, a ground floor in \u003cstrong\u003eLaval\u003c\/strong\u003e, or a residential space in \u003cstrong\u003eLongueuil\u003c\/strong\u003e, we evaluate a wall-mounted heat pump based on three elements: the building's heating requirements, air circulation, and installation possibilities. At \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we incorporate these elements into our recommendation rather than automatically associating a capacity with a square footage. Our evaluation takes into account insulation, windows, room volume, and layout. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e18,000 BTU YORK Z Series\u003c\/strong\u003e also deserves a close look at its specifications: the series name does not necessarily correspond to the efficiency of every capacity.\u003c\/p\u003e\n\u003ch3\u003e“28 SEER” Z Series: 21 SEER efficiency for this combination\u003c\/h3\u003e\n\u003cp\u003eThe YORK Z Series is presented with efficiency of up to \u003cstrong\u003e28 SEER\u003c\/strong\u003e. However, for the combination consisting of the \u003cstrong\u003eDHZ18NWB21S\u003c\/strong\u003e indoor unit and the \u003cstrong\u003eDHZ18CSB21S\u003c\/strong\u003e outdoor unit, the manufacturer's technical sheet indicates \u003cstrong\u003e21 SEER\u003c\/strong\u003e, \u003cstrong\u003e12.5 EER\u003c\/strong\u003e, and \u003cstrong\u003e10.5 HSPF\u003c\/strong\u003e. We use these values specific to the 18,000 BTU model for comparisons. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese ratings are published under the designations \u003cstrong\u003eSEER, EER, and HSPF\u003c\/strong\u003e, not SEER2, EER2, or HSPF2. We therefore retain their original designations: simply changing “SEER” to “SEER2” would present the documented data inaccurately. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThe specifications of the YORK DHZ18CSB21S\u003c\/h3\u003e\n\u003cp\u003eThe AHRI reference listed in our product sheet is \u003cstrong\u003e8578593\u003c\/strong\u003e. The system combines a wall-mounted indoor unit with an outdoor unit, without a distribution duct network.\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eFeature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eModel data\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndoor unit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDHZ18NWB21S\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor unit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDHZ18CSB21S\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal cooling capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e18,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal heating capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e19,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eR-410A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum circuit ampacity — MCA\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e19 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum overcurrent protection — MOP\/MOCP\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e30 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant connections, liquid and gas\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1\/4 in. and 5\/8 in.\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndoor airflow\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e324 to 530 CFM\u003c\/strong\u003e, depending on speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndoor sound pressure\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e26 to 48 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor sound pressure\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e59 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWi-Fi control\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded\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\u003eThis data helps prepare the system sizing, connections, and placement. Nominal capacities correspond to the manufacturer's test conditions and not to identical output at all outdoor temperatures. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eHeating down to −30 °C: distinguishing operation from available capacity\u003c\/h3\u003e\n\u003cp\u003eThe YORK specifications indicate a heating operating range down to \u003cstrong\u003e−30 °C\u003c\/strong\u003e. This limit does not mean that the unit provides its rated capacity throughout the winter. To assess its contribution to heating, we must distinguish between the minimum operating temperature, the heat actually produced, and the building’s needs at that temperature. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore do not present this heat pump as an automatic replacement for all existing heating equipment. Our recommendation must specify the rooms served, the conditions under which supplemental heat remains necessary, and the low-temperature heating data available for the selected pairing.\u003c\/p\u003e\n\u003cp\u003eFor a homeowner, the useful question to ask in a quote is concrete: \u003cstrong\u003ewhat portion of the heating needs can this installation cover in the intended spaces?\u003c\/strong\u003e This analysis is more informative than a displayed minimum temperature alone.\u003c\/p\u003e\n\u003ch3\u003eSeven speeds and adjustable louvers to adapt air distribution\u003c\/h3\u003e\n\u003cp\u003eWe have \u003cstrong\u003eseven fan speeds\u003c\/strong\u003e and adjustable air direction along both the vertical and horizontal axes. The remote control offers several modes, including heating, cooling, ventilation, and dehumidification. These controls make it possible to adapt operation to room occupancy. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur main goal is to avoid an uncomfortable setting: airflow directed continuously toward a seated occupant, for example, may be unsuitable even when the displayed temperature is appropriate. During commissioning, we prioritize a demonstration in the actual room: occupant locations, louver direction, and ventilation settings.\u003c\/p\u003e\n\u003ch3\u003eFloor area alone is not enough to confirm the right model\u003c\/h3\u003e\n\u003cp\u003eOur assessment of an \u003cstrong\u003e18,000 BTU wall-mounted heat pump\u003c\/strong\u003e takes ceiling height, window area, insulation, and passageways between rooms into account. Two homes of the same size may have different needs; air distribution matters just as much as the advertised capacity. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eLet’s take an \u003cstrong\u003eillustrative scenario in Laval\u003c\/strong\u003e: a homeowner wants to treat the living room, dining room, and two bedrooms located at the end of a corridor. We would not consider these spaces to be a single open room. Before selecting this YORK, we would examine the openings, possible unit placement, and expectations for the bedrooms when their doors are closed.\u003c\/p\u003e\n\u003cp\u003eOur recommendation might then apply only to the main area, with a precise explanation of the expected limitations. We prefer to define a realistic scope in the quote rather than imply that a wall-mounted unit will automatically provide uniform temperatures in every room.\u003c\/p\u003e\n\u003ch2\u003eInstallation and maintenance of the YORK Z Series with AirGreen in Greater Montreal\u003c\/h2\u003e\n\u003ch3\u003ePlan for the actual footprint and access to the unit\u003c\/h3\u003e\n\u003cp\u003eTo prepare for integration, we are using the following approximate dimensions, presented in the order \u003cstrong\u003ewidth × depth × height\u003c\/strong\u003e: \u003cstrong\u003e38 × 8 × 13 in\u003c\/strong\u003e for the indoor unit and \u003cstrong\u003e39 × 17 × 31 in\u003c\/strong\u003e for the outdoor unit. This order is important: depth must not be confused with height. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe then add the required clearances for airflow, connection, and maintenance. A visually discreet location is not necessarily suitable if it makes it difficult to open the panel or access the components. The installation manual also provides for selecting locations based on the surroundings and the impact on neighbours. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor your project, we propose confirming the indoor and outdoor locations before the work begins, along with the line routing and planned finishes.\u003c\/p\u003e\n\u003ch3\u003eDistinguish electrical requirements from consumption\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e19 A MCA\u003c\/strong\u003e and \u003cstrong\u003e30 A MOP\u003c\/strong\u003e ratings do not represent constant power consumption. They are used to define the circuit design and its protection. We have the conductors, disconnecting device, and connection confirmed based on the nameplate, applicable documentation, and actual site conditions. The manufacturer requires properly sized power supply and wiring. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis prevents us from reducing the assessment to whether there is clear space in the panel. In the quote, we would like the necessary electrical work to be identified before installation.\u003c\/p\u003e\n\u003ch3\u003eTake care with the refrigerant lines, drainage, and testing\u003c\/h3\u003e\n\u003cp\u003eThis YORK uses \u003cstrong\u003e1\/4 in and 5\/8 in\u003c\/strong\u003e connections and \u003cstrong\u003eR-410A\u003c\/strong\u003e. When replacing a system, we do not assume that the existing lines are suitable simply because they are already in place. Their compliance must be part of the connection assessment. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDrainage also deserves separate attention: the manual specifies a route that allows condensate to drain without improper upward routing of the pipe. It also specifies vacuuming, leak detection, and checks after installation. These operations are part of commissioning, beyond simply starting the appliance. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor your \u003cstrong\u003eHVAC installation\u003c\/strong\u003e, we suggest having the proposal specify the routing of the lines, the drainage solution, the supports, and the finishing work. This description makes quotes easier to compare.\u003c\/p\u003e\n\u003ch3\u003eTwo AirGreen projects that illustrate the importance of location\u003c\/h3\u003e\n\u003cp\u003eIn \u003cstrong\u003eVille Mont-Royal\u003c\/strong\u003e, our published project concerns an \u003cstrong\u003e18,000 BTU SHARP ZU1\u003c\/strong\u003e, not this YORK. The indoor installation had to accommodate a low ceiling and a constraining architectural angle. We adapted the positioning while respecting the clearances, then installed the outdoor unit on an anti-vibration base. This project illustrates the importance of validating the available space before permanently determining the location. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eBoucherville\u003c\/strong\u003e, another documented installation of an \u003cstrong\u003e18,000 BTU SHARP ZU1\u003c\/strong\u003e presented a different challenge: the unit had to be installed on a wall that already contained an intercom and switches. We integrated the appliance without disrupting this equipment. The desired result was therefore not limited to heating and cooling; we also had to preserve the wall’s everyday use. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese examples involve other appliances, but they show the types of constraints we want to address when preparing a YORK project: access, clearances, existing equipment, and integration into the room.\u003c\/p\u003e\n\u003ch3\u003eMaintaining the filters and recognizing signs that require service\u003c\/h3\u003e\n\u003cp\u003eWe recommend keeping the filters clean and following the appliance’s maintenance instructions. The service manual notes that dust buildup and airflow problems can contribute to malfunctions. A decrease in comfort therefore warrants checking the settings and the condition of the unit before concluding that there is insufficient capacity. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTo prepare for an \u003cstrong\u003eAirGreen service call\u003c\/strong\u003e, we suggest noting the mode used, the requested temperature, the observed behavior, and any displayed code. A photo of the display and rating plates can also help identify the equipment involved precisely.\u003c\/p\u003e\n\u003cp\u003eWe reserve work on the refrigeration circuit and electrical components for qualified personnel. The manual specifically notes the presence of components that may retain a dangerous voltage after the power has been disconnected. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e10-10-0 warranty: understanding the coverage shown\u003c\/h3\u003e\n\u003cp\u003eOur information sheet lists a \u003cstrong\u003e10-10-0\u003c\/strong\u003e warranty, meaning \u003cstrong\u003e10 years for the compressor, 10 years for parts, and no years of labor included under this designation\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe YORK catalog for this generation distinguishes a basic warranty from enhanced ten-year residential coverage after registration. It also presents labor protection that can be purchased separately. We therefore specify in the offer the conditions applicable to the system sold, the registration requirements, and any additional protection selected. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBefore comparing two offers, we recommend requesting a written response regarding parts, labor, and travel expenses. A warranty duration, without its scope, does not reveal all possible costs.\u003c\/p\u003e\n\u003ch3\u003eInstalled price and LogisVert: establish the budget without assuming a rebate\u003c\/h3\u003e\n\u003cp\u003eTo compare installation costs, we suggest separating the equipment from site-specific factors: route length, supports, high-access work, electrical connection, drainage, and finishing. A detailed offer makes it clear what is included and what depends on the selected configuration.\u003c\/p\u003e\n\u003cp\u003eRegarding \u003cstrong\u003eLogisVert\u003c\/strong\u003e, Hydro-Québec requires \u003cstrong\u003eENERGY STAR®\u003c\/strong\u003e certification for heat pumps installed on or after \u003cstrong\u003eNovember 26, 2025\u003c\/strong\u003e. Eligibility must be verified for the complete system and according to the program conditions applicable to the installation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur information sheet indicates \u003cstrong\u003eENERGY STAR®: no\u003c\/strong\u003e for this YORK. Based on this, we therefore do not anticipate a LogisVert rebate in its budget. \u003cstrong\u003eOperation advertised down to −30 °C does not, on its own, constitute proof of eligibility.\u003c\/strong\u003e We do not deduct any financial assistance without documentary validation of the model and its certification. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eRequest an AirGreen quote for your YORK project\u003c\/h3\u003e\n\u003cp\u003eFor your project in \u003cstrong\u003eMontréal\u003c\/strong\u003e, \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, on the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e or the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, we invite you to have the service area, included work, warranty coverage, and heating expectations specified. Our process includes an initial consultation and a personalized quote. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen at 514-316-2973 or at \u003ca class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003esales@airgreen.ca\u003c\/a\u003e to obtain a quote, check the availability of the 18,000 BTU YORK Z Series, and prepare an installation suited to your property.\u003c\/strong\u003e\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56120449204516,"sku":"DHZ18CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_MURALE_YORK_SERIE_Z_18000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_16ad1199-c92f-4f73-b1e8-1917eb5a65f6.png?v=1789426162"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/collections\/THERMOPOMPE_MURALE_YORK_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1790023932","url":"https:\/\/airgreen.ca\/en\/collections\/thermopompe-murale-york.oembed","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}