{"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","url":"https:\/\/airgreen.ca\/en\/products\/thermopompe-murale-york-serie-p-18-seer-18000-btu","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}