{"title":"Conduit Gainable YORK | Installation à Montréal, Laval, Longueuil, Rive Sud et Rive Nord","description":null,"products":[{"product_id":"climatiseur-gainable-york-serie-r-20-seer-18000-btu","title":"YORK R Series 20 SEER Ducted Air Conditioner | 18000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eDiscreet grilles and air distribution suited to your interior\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eDuring a renovation, we can integrate cooling in a way other than adding a unit to a wall. The \u003cstrong\u003eYORK R Series ducted air conditioner in the 18,000 BTU category\u003c\/strong\u003e allows the indoor unit to be concealed above a suspended ceiling or in a suitable mechanical space. Air is then distributed through ducts to wall or ceiling grilles, whose placement can be adapted to the layout. This configuration is expressly presented in the YORK catalog. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we approach this type of project by considering the unit and its ductwork as a whole. We start by determining which rooms need to be served, the available pathways, and your comfort expectations. Our service covers \u003cstrong\u003eMontreal\u003c\/strong\u003e, \u003cstrong\u003eLaval\u003c\/strong\u003e, \u003cstrong\u003eLongueuil\u003c\/strong\u003e, the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e, and the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, both for installation and post-installation support. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTwo details help properly identify this product: \u003cstrong\u003e“R Series 20 SEER” is a series designation, while this combination is documented at 16 SEER\u003c\/strong\u003e. Similarly, the name \u003cstrong\u003e18,000 BTU\u003c\/strong\u003e refers to its commercial category; the ducted-unit table indicates a rated cooling capacity of \u003cstrong\u003e17,100 BTU\/h\u003c\/strong\u003e. We use these detailed figures to compare the equipment. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eA ducted system that also provides heating\u003c\/h3\u003e\n\u003cp\u003eThe system shown combines the \u003cstrong\u003eDHR18NDB21S\u003c\/strong\u003e indoor unit with the \u003cstrong\u003eDHR18CSB21S\u003c\/strong\u003e outdoor unit. Despite the term “air conditioner” in its commercial name, it is indeed a \u003cstrong\u003educted heat pump\u003c\/strong\u003e, with both cooling and heating functions. The catalog distinguishes this ducted unit from the ceiling cassettes and floor-ceiling units in the same series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe use the following specifications from the table on \u003cstrong\u003eprinted page 19 of the catalog\u003c\/strong\u003e, dedicated to ducted units:\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\"\u003ePublished data for the DHR18NDB21S\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated cooling capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e17,100 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling capacity range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e5,400 to 18,700 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\u003e18,800 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating capacity range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e4,700 to 23,200 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeasonal cooling efficiency\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e16 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\u003e11.0 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\u003e9.5 HSPF\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndicated maximum airflow\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e588 CFM\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\u003e28 to 40 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\u003eThese values come from the table specific to the ducted unit, rather than from that of another indoor unit using the same outdoor unit. Our commercial sheet also identifies the assembly by reference \u003cstrong\u003eAHRI 8578421\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eVariable capacity, with no shortcut on sizing\u003c\/h3\u003e\n\u003cp\u003eThe R Series uses an \u003cstrong\u003einverter-driven variable-speed compressor\u003c\/strong\u003e. The manufacturer describes modulation intended to adjust output and reduce the fluctuations associated with the starts and stops of conventional systems. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, we do not translate this technology into a universal floor area to be covered. Heat pump sizing must take the climate, heating and cooling needs, and building characteristics into account. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor your project, we therefore ask for concrete information: room dimensions, window exposure, known insulation, ceiling height, and occupancy patterns. We also seek to understand the current discomfort. A bedroom that is too hot in the afternoon, an office occupied all day, and a family room used in the evening do not necessarily lead to the same distribution choices.\u003c\/p\u003e\n\u003cp\u003eOur objective is to justify selecting this \u003cstrong\u003e18,000 BTU category\u003c\/strong\u003e, then determine how the air will be distributed throughout the selected spaces.\u003c\/p\u003e\n\u003ch3\u003eMultiple grilles do not constitute multiple independent zones\u003c\/h3\u003e\n\u003cp\u003eThe YORK combination presented belongs to \u003cstrong\u003esingle-zone systems\u003c\/strong\u003e, with an outdoor unit paired with an indoor unit. We therefore do not present each grille as a zone that automatically has its own setpoint temperature. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAs an illustrative scenario, consider a floor comprising two bedrooms and an office. We can study a ducted distribution system serving these rooms, but we must also examine their respective needs and how they function when the doors are closed.\u003c\/p\u003e\n\u003cp\u003eThe return air deserves particular attention here. A conditioned room must have a path that allows air to return to the unit. The technical guides from Pacific Northwest National Laboratory emphasize that insufficient return air can create pressure imbalances and temperature differences between rooms. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdding a supply grille without providing a return-air path is therefore not a complete design.\u003c\/strong\u003e We incorporate both paths into our proposal instead of limiting ourselves to the number of visible outlets.\u003c\/p\u003e\n\u003ch3\u003eStatic pressure: a decisive factor for the ductwork\u003c\/h3\u003e\n\u003cp\u003eStatic pressure is one of the data points to verify in determining whether the fan can move air through the planned ductwork. Excessive restrictions can reduce airflow and compromise comfort; the pressure measurement must be compared with the equipment specifications. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe supplied catalogue specifies a range of \u003cstrong\u003e0 to 0.4 in. water column\u003c\/strong\u003e for the \u003cstrong\u003eDHR18NDB21S\u003c\/strong\u003e, under the heading “static pressure.” We do not assign it the 0.8 in. value indicated for the higher capacities. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocumentary validation is still required before the final ductwork calculation:\u003c\/strong\u003e a supplementary submittal sheet bearing the same references indicates, for its part, \u003cstrong\u003e0 to 0.15 in. water column of external static pressure\u003c\/strong\u003e. These indications should not be considered interchangeable without confirmation of their scope and the applicable conditions. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore have the data to be used and the relationship between pressure and airflow confirmed before approving the layout. This precaution is particularly important when a homeowner wishes to retain existing ducts or serve distant rooms.\u003c\/p\u003e\n\u003ch3\u003eFour published airflow rates and acoustic comfort to be assessed in the room\u003c\/h3\u003e\n\u003cp\u003eThe YORK table presents four airflow rates, from highest to lowest: \u003cstrong\u003e588, 529, 412 and 382 CFM\u003c\/strong\u003e, meaning cubic feet of air per minute. The corresponding indoor sound pressure levels are \u003cstrong\u003e40, 39, 36 and 28 dB(A)\u003c\/strong\u003e. The minimum level of 28 dB(A) therefore does not represent all operating speeds. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOutdoors, the \u003cstrong\u003eDHR18CSB21S\u003c\/strong\u003e is listed at \u003cstrong\u003e56 dB(A)\u003c\/strong\u003e in the catalogue. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe discuss acoustic comfort in relation to the location of the grilles and the unit. The return-air path also matters: a return directly connected to the fan can transmit its noise into the occupied space. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e For a bedroom, we therefore wish to examine the duct network before promising a result based on a single brochure value.\u003c\/p\u003e\n\u003ch3\u003eHeating down to −18 °C, within the documented limits\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit has an advertised operating range of \u003cstrong\u003e−18 to 24 °C in heating mode\u003c\/strong\u003e. This lower limit does not mean that the heat pump retains its nominal capacity at −18 °C. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe ducted system table lists \u003cstrong\u003e18,800 BTU\/h nominal heating capacity\u003c\/strong\u003e, with test conditions including an outdoor temperature of approximately \u003cstrong\u003e8 °C\u003c\/strong\u003e. We distinguish this measurement from performance in extreme cold. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur commercial data sheet also indicates that this combination is certified neither as \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e nor as \u003cstrong\u003eENERGY STAR for Cold Climates\u003c\/strong\u003e. We therefore define the role of the existing heating system during the project assessment. The brochure does not provide a detailed capacity or coefficient of performance table at −15 °C that would allow us to claim that this system alone will cover the building's winter heating needs.\u003c\/p\u003e\n\u003ch3\u003eA wired controller included and a WiFi option to be clarified\u003c\/h3\u003e\n\u003cp\u003eThe page dedicated to the ducted system presents the \u003cstrong\u003estandard DWCR wired controller\u003c\/strong\u003e. We are retaining this product-specific information rather than automatically attributing to it the infrared remote shown with other units in the R Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor more advanced programming needs, the catalog also describes the \u003cstrong\u003eDWCR2\u003c\/strong\u003e, with seven-day programming and eight events per day, as well as lockout functions. Its selection must be specified in the quotation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWiFi is listed as an option on our commercial data sheet\u003c\/strong\u003e. However, the brochure does not confirm a WiFi module specific to this combination; its presentation of the EWPE app refers to the P, X, and Z series. We therefore request confirmation of compatibility before including an interface or promising remote functions. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eA ducted installation that accounts for the ducts, access, and maintenance\u003c\/h2\u003e\n\u003ch3\u003eAllow for more than the cabinet footprint\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures \u003cstrong\u003e41 × 28 × 11 in\u003c\/strong\u003e, in the order \u003cstrong\u003ewidth × depth × height\u003c\/strong\u003e, according to the catalog. Its net weight is listed as \u003cstrong\u003e73 lb, or approximately 33 kg\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe use these dimensions for a preliminary integration study, not as sufficient clearance on their own. Our preparation must also account for the connections, duct transitions, and access to components requiring maintenance.\u003c\/p\u003e\n\u003cp\u003eFor the outdoor unit, the published dimensions are \u003cstrong\u003e38 × 28 × 16 in\u003c\/strong\u003e. We have the dimension orientation, supports, and clearances confirmed against the applicable plan before finalizing its location. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a renovation in \u003cstrong\u003eMontreal\u003c\/strong\u003e or \u003cstrong\u003eLongueuil\u003c\/strong\u003e, we ideally request photos of the open ceiling and the proposed passage routes. We can then discuss the actual constraints before the finishes limit the possibilities.\u003c\/p\u003e\n\u003ch3\u003eTwo separate electrical power supplies\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer specifies that the indoor and outdoor units require \u003cstrong\u003eseparate power supplies\u003c\/strong\u003e. The system operates at \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e, clarifying the “220 V” designation in our commercial sheet. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\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\"\u003eElectrical data\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eDHR18CSB21S outdoor unit\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eDHR18NDB21S indoor ducted unit\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Circuit Ampacity — MCA\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e17 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Overcurrent Protection — MOCP\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e25 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e15 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\u003eThe indoor values appear in the table specific to the ducted unit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe have the necessary circuits specified in the quote. The responsible professional must validate the conductors and protection according to the nameplates and applicable requirements. We do not reduce this installation to a single 25 A outdoor connection.\u003c\/p\u003e\n\u003ch3\u003eDistinguish refrigerant piping from air ducts\u003c\/h3\u003e\n\u003cp\u003eThe system uses \u003cstrong\u003eR-410A\u003c\/strong\u003e, with a \u003cstrong\u003e1\/4 in\u003c\/strong\u003e liquid line and a \u003cstrong\u003e1\/2 in\u003c\/strong\u003e gas line. The catalog specifies a maximum total piping length of \u003cstrong\u003e164 ft, or 50 m\u003c\/strong\u003e, as well as a maximum elevation difference of \u003cstrong\u003e49.2 ft, or 15 m\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese limits concern the refrigerant connections between the units. \u003cstrong\u003eThey do not constitute authorization to install a 50-meter air distribution network.\u003c\/strong\u003e Air ducts must be studied separately, according to their route, dimensions, and available pressure.\u003c\/p\u003e\n\u003cp\u003eWe also distinguish between a technical limit and a length included in the price. Additional passages, difficult access, and concealed connections must be described in the quote.\u003c\/p\u003e\n\u003ch3\u003eArrange condensate drainage\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003einternal condensate pump\u003c\/strong\u003e is one of the advertised features of the ducted unit. The indoor drain connection is specified as having a \u003cstrong\u003e1 in. outside diameter\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe plan the drain route before closing the ceiling. In this presentation, the brochure does not specify the pump's permissible lift height; we confirm this limit in the applicable instructions.\u003c\/p\u003e\n\u003cp\u003eWe also want the owner to know where the service access and drainage components are located. A concealed unit must remain accessible for inspection, without relying on an improvised opening in a new finish.\u003c\/p\u003e\n\u003ch3\u003eTwo AirGreen projects that illustrate our approach\u003c\/h3\u003e\n\u003ch4\u003eIn Îles-Laval: integrate a ducted unit into an existing cavity\u003c\/h4\u003e\n\u003cp\u003eDuring a project in \u003cstrong\u003eÎles-Laval\u003c\/strong\u003e, we installed a \u003cstrong\u003eGREE All Match Slim Duct R32\u003c\/strong\u003e in a ceiling that was already open. The wood structure, insulation, and available space required us to work simultaneously on the unit's orientation, the connections, and future access. Our report also describes the attention given to the return air, transitions, and duct sealing. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe documented result is a heating and cooling system integrated into the structure, with limited visual presence in the living space. This project involved GREE equipment, not this YORK unit; we draw on it as an integration experience, not as a performance measurement for the R Series. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor your project, we apply the same planning question: how can the entire system be installed cleanly while preserving the access needed after the finishes are completed?\u003c\/p\u003e\n\u003ch4\u003eIn Longueuil: address the ductwork at the same time as the equipment\u003c\/h4\u003e\n\u003cp\u003eIn a mixed-use building in \u003cstrong\u003eLongueuil\u003c\/strong\u003e, our ventilation system modernization project included adapting and balancing the ductwork. The initial diagnosis identified, among other things, unbalanced airflow, noise, and leaks. The report states that the managers appreciated the cleanliness of the work and the transparency of the follow-up. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis was a different commercial installation from the YORK ducted unit presented here. The lesson remains relevant: we must examine the ductwork when a comfort issue accompanies a replacement, rather than automatically attributing every difficulty to the old equipment.\u003c\/p\u003e\n\u003ch3\u003eCommissioning that also verifies the distribution\u003c\/h3\u003e\n\u003cp\u003eFor a \u003cstrong\u003educted system\u003c\/strong\u003e, we recommend clearly including the following checks in the scope of work:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigeration circuit tightness and preparation\u003c\/strong\u003e, with pressure testing and evacuation according to the applicable procedures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerification of the charge and controls\u003c\/strong\u003e, based on the actual installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAirflow and static pressure measurement\u003c\/strong\u003e, with an examination of the distribution and any possible network leaks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrainage testing and an operating overview\u003c\/strong\u003e, before the documents are handed over to the owner.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eChecks of the refrigeration circuit, static pressure, airflow, and duct leaks are among the commissioning practices described by the Pacific Northwest National Laboratory. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe want the completion of the work to provide more than an appliance that starts up: the settings and observations should make it possible to understand how the system operates.\u003c\/p\u003e\n\u003ch3\u003eMaintenance made easier by the choices made at the outset\u003c\/h3\u003e\n\u003cp\u003eWe plan access to the filtration system from the design stage. Depending on the return-air configuration, a filter placed at an accessible grille can simplify maintenance compared with a filter located near equipment that is difficult to reach. This choice should be studied along with the ductwork. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe brochure provided does not specify a cleaning frequency for the \u003cstrong\u003eDHR18NDB21S\u003c\/strong\u003e. We therefore provide the instructions corresponding to the filter actually installed and the manufacturer's instructions, without assuming that all filters can be washed.\u003c\/p\u003e\n\u003cp\u003eTo prepare for an \u003cstrong\u003eAirGreen service call\u003c\/strong\u003e, we ask you to note the affected rooms, the selected mode, and any displayed code. A change in noise, weak airflow, or a temperature difference that appeared after a change in furniture should be described precisely.\u003c\/p\u003e\n\u003cp\u003eIf there is water on the ceiling, a burning smell, or repeated electrical trips, we recommend turning off the appliance and requesting professional service rather than repeatedly restarting it.\u003c\/p\u003e\n\u003ch3\u003eA clear budget, without assuming any guarantee or subsidy\u003c\/h3\u003e\n\u003ch4\u003eThe work must be detailed\u003c\/h4\u003e\n\u003cp\u003eWe price the project by distinguishing the equipment, ductwork, grilles, return air, filtration, connections, and controls. We also specify the openings, technical access points, possible removal of an old system, and included finishes.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we provide a free on-site estimate and submit a final offer before work begins. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e The value of a visit is especially clear for a ducted system: we can examine what will be concealed behind the ceiling as well as what will remain visible in the rooms.\u003c\/p\u003e\n\u003ch4\u003eThe 10-10-0 package comes with conditions\u003c\/h4\u003e\n\u003cp\u003eOur commercial product sheet lists \u003cstrong\u003e10 years on the compressor, 10 years on parts, and no labour included in this package\u003c\/strong\u003e. The catalogue distinguishes a standard warranty of \u003cstrong\u003e7 years on the compressor and 5 years on parts\u003c\/strong\u003e, followed by extended residential coverage of \u003cstrong\u003e10 years on the compressor and parts\u003c\/strong\u003e, with registration. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eCoverage including labour is also offered with the purchase and registration of an extended warranty for residential applications. We confirm the conditions applicable to the equipment sold, particularly when the project is commercial. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eLogisVert eligibility must be verified before any deduction\u003c\/h4\u003e\n\u003cp\u003eHydro-Québec indicates that heat pumps installed as of \u003cstrong\u003eNovember 26, 2025\u003c\/strong\u003e must be \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certified to be eligible for LogisVert financial assistance. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSince our product sheet presents this combination as uncertified, we do not deduct a LogisVert grant from its budget on that basis. When financial assistance influences the choice, we propose comparing the installed costs with those of a combination whose eligibility has been confirmed.\u003c\/p\u003e\n\u003ch3\u003ePrepare your ducted installation with AirGreen\u003c\/h3\u003e\n\u003cp\u003eWe are evaluating the \u003cstrong\u003eYORK R Series 18,000 BTU class\u003c\/strong\u003e for its documented capacity, ducted distribution, and integration possibilities in your building. Our proposal must specify the areas concerned, the heating system retained, maintenance access, and the work required.\u003c\/p\u003e\n\u003cp\u003ePrepare a few photos of the area to be served, the ceiling, the electrical panel, and the proposed outdoor location. This information will help us prepare a tailored quote rather than an estimate 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 have your ducted air conditioner project evaluated in Montréal, Laval, Longueuil, on the North Shore or the South Shore, and receive your quote.\u003c\/strong\u003e\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56157174890788,"sku":"DHR18NDB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_CLIMATISEUR_GAINABLE_YORK_SERIE_R_18000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_c5c3a9a2-d2c1-4fb9-83cc-0bc0e7eb4f20.png?v=1789500682"},{"product_id":"climatiseur-gainable-york-serie-r-20-seer-24000-btu","title":"YORK R Series 20 SEER Ducted Air Conditioner | 24000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA concealed unit, with grilles positioned where comfort is needed\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eTo cool an entire floor without installing a wall-mounted unit in every room, we can consider a \u003cstrong\u003educted solution\u003c\/strong\u003e. The principle is to conceal the indoor unit in a technical space, then route the air to grilles integrated into the ceiling or walls. YORK specifically provides this configuration for its \u003cstrong\u003eDHR24NDB21S\u003c\/strong\u003e unit, designed to be installed above a suspended ceiling or in a suitable technical storage space. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we approach a \u003cstrong\u003educted air conditioning project in Montreal, Laval, or the South Shore\u003c\/strong\u003e by first designing the airflow path. We determine where to install the outlets, how to organize the return air to the unit, and which access points to preserve for maintenance. This planning makes it possible to discuss the expected result in the rooms, not just the location of the cabinet.\u003c\/p\u003e\n\u003cp\u003eUnder the commercial name \u003cstrong\u003eYORK R Series 24,000 BTU Ducted Air Conditioner\u003c\/strong\u003e, we present a system that also provides heating: the catalog classifies this configuration as a \u003cstrong\u003eheat pump\u003c\/strong\u003e, with published capacities in both modes. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThe efficiency of this combination is 16 SEER\u003c\/h3\u003e\n\u003cp\u003eThe designation \u003cstrong\u003e“R Series 20 SEER”\u003c\/strong\u003e refers to a product line advertised as offering up to 20 SEER. However, for the 24,000 BTU ducted combination, the table on \u003cstrong\u003epage 19 of the YORK catalog\u003c\/strong\u003e indicates \u003cstrong\u003e16 SEER\u003c\/strong\u003e, \u003cstrong\u003e10.65 EER\u003c\/strong\u003e, and \u003cstrong\u003e10 HSPF\u003c\/strong\u003e. We use these model-specific values to present its performance. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe also distinguish the commercial category of \u003cstrong\u003e24,000 BTU\u003c\/strong\u003e from the published rated cooling capacity, which is \u003cstrong\u003e23,800 BTU\/h\u003c\/strong\u003e. Here are the essential details for identifying the system:\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\"\u003eReference 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\u003eDHR24CSB21S\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDucted indoor unit\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDHR24NDB21S\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated cooling capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e23,800 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling capacity range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e8,200 to 29,000 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\u003e27,200 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating capacity range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e8,200 to 32,400 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeasonal cooling efficiency\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e16 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\u003e10.65 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 HSPF\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThese characteristics come from the tables for the outdoor unit and the ducted unit. The minimum and maximum capacities do not represent guaranteed output at all outdoor temperatures. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur commercial data sheet lists reference \u003cstrong\u003eAHRI 8578433\u003c\/strong\u003e. We recommend keeping this reference together with the two model numbers when comparing proposals. We also retain the published ratings, \u003cstrong\u003eSEER, EER, and HSPF\u003c\/strong\u003e, without renaming them SEER2, EER2, or HSPF2.\u003c\/p\u003e\n\u003ch3\u003eA modulating compressor to be selected according to the building's needs\u003c\/h3\u003e\n\u003cp\u003eThe R Series uses an \u003cstrong\u003einverter-driven variable-speed compressor\u003c\/strong\u003e. YORK presents this modulation as a way to adapt operation and limit the abrupt starts and stops of conventional systems. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis feature does not eliminate the need for proper sizing. Equipment that is too small or too large for the space can compromise the desired comfort; the selection must therefore match the building's needs. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTo prepare our recommendation, we request the floor plan, window areas, their orientation, ceiling heights, and any issues observed with the existing heating or cooling system. We also want to know whether bedroom doors remain closed at night and whether certain rooms are used daily for working from home. This information helps us establish the project's priorities without promising a universally applicable area covered by “24,000 BTU.”\u003c\/p\u003e\n\u003ch3\u003eA maximum airflow of 826 cu. ft.\/min. to distribute through the duct network\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHR24NDB21S\u003c\/strong\u003e data sheet presents four ventilation levels. Airflow and indoor sound pressure vary together depending on the setting. \u003cspan class=\"contents\"\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\"\u003eVentilation setting, from fastest to slowest\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003ePublished airflow\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eIndoor sound pressure\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFirst setting\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e826 cu. ft.\/min.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e47 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecond setting\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e767 cu. ft.\/min.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e46 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThird setting\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e708 cu. ft.\/min.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e44 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFourth setting\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e531 cu. ft.\/min.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e40 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\u003eThe \u003cstrong\u003e826 CFM\u003c\/strong\u003e refers to the total published airflow for the unit, not airflow available at each grille. We must distribute the air among the different branches of the duct network according to the selected requirements.\u003c\/p\u003e\n\u003cp\u003eWe also do not present \u003cstrong\u003e40 dB(A)\u003c\/strong\u003e as a constant sound level. This value corresponds to the slowest setting in the table. For an installation near bedrooms, we therefore examine the ventilation settings along with the placement of the cabinet and grilles.\u003c\/p\u003e\n\u003ch3\u003eStatic pressure: the point to check before adding more ducts\u003c\/h3\u003e\n\u003cp\u003eYORK describes this ducted unit as having \u003cstrong\u003emedium static pressure\u003c\/strong\u003e and publishes a range of \u003cstrong\u003e0 to 0.8 in. water column\u003c\/strong\u003e. This characteristic deserves particular attention when designing the system. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSystem pressure affects airflow and fan power consumption. Experimental work published by the U.S. Department of Energy notably demonstrates the importance of accounting for this pressure and the design of distribution cabinets when evaluating a ducted system. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn our study, we therefore consider lengths, changes in direction, transitions, and grilles as a whole. We do not determine the number of outlets solely based on the number of rooms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe catalog table does not provide a complete curve relating airflow and pressure.\u003c\/strong\u003e We therefore cannot infer that 826 ft³\/min will be maintained at the limit of 0.8 in. water column. System validation must rely on the ventilation data corresponding to the unit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eServing multiple rooms does not mean having multiple independent temperatures\u003c\/h3\u003e\n\u003cp\u003eThis R Series belongs to \u003cstrong\u003esingle-zone\u003c\/strong\u003e systems, with one outdoor unit paired with one indoor unit. Having multiple grilles does not automatically create independent control for each room. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eLet’s consider a \u003cstrong\u003edesign scenario\u003c\/strong\u003e for a floor comprising two bedrooms and an office. We could study a supply branch for each space, then check the return-air path when the doors are closed. We would also discuss temperature expectations: requesting an office that is significantly cooler than the bedrooms is not the same need as seeking a common setpoint for the floor.\u003c\/p\u003e\n\u003cp\u003eIn addition to the catalog, the YORK installation manual depicts a system that includes supply air, return air, filtration, and connections to the air handler cabinet. We therefore incorporate return air into the design from the outset, rather than treating it as an afterthought once the grilles have been selected. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eHeating down to −18 °C: clarify what this limit means\u003c\/h3\u003e\n\u003cp\u003eFor the DHR24CSB21S outdoor unit, the stated operating range is \u003cstrong\u003e−18 to 24 °C in heating mode\u003c\/strong\u003e and \u003cstrong\u003e−18 to 46 °C in cooling mode\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe do not confuse the −18 °C limit with the nominal capacity of \u003cstrong\u003e27,200 BTU\/h\u003c\/strong\u003e. The heating test conditions listed in the catalog use an outdoor temperature of approximately \u003cstrong\u003e8 °C\u003c\/strong\u003e. The table does not specify the capacity or coefficient of performance at −15 °C or −18 °C. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a winter project, we therefore require the role of the existing heating system to be defined during the assessment. We do not propose removing baseboard heaters or another heat source simply because the ducted unit has a heating mode. Our specification sheet also identifies this combination as \u003cstrong\u003enot certified for cold climates\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2\u003ePreparing a ducted installation that will remain accessible after finishing\u003c\/h2\u003e\n\u003ch3\u003eThe AirGreen experience in Îles-Laval: integrating the cabinet without blocking access\u003c\/h3\u003e\n\u003cp\u003eIn a project completed in the \u003cstrong\u003eÎles-Laval\u003c\/strong\u003e area, we installed a \u003cstrong\u003eGREE All Match Slim Duct R32\u003c\/strong\u003e in an already-open ceiling cavity. The wood structure, insulation, and existing pathways limited the available space. We studied the cabinet orientation, connections, drainage, and access required for ongoing equipment maintenance. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe desired result was a heating and cooling installation integrated into the home, without multiplying visible wall-mounted units. This project involved a \u003cstrong\u003eGREE\u003c\/strong\u003e, not the YORK presented here. Nevertheless, it illustrates an important decision for any ducted project: we must reserve space for the ducts and servicing at the same time as space for the unit. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor your YORK project, we recommend the same approach before determining the openings and finishing work.\u003c\/p\u003e\n\u003ch3\u003eThe cabinet dimensions are not enough to define the dropped ceiling\u003c\/h3\u003e\n\u003cp\u003eOur specification sheet and the catalog column for the 24,000 BTU ducted unit indicate \u003cstrong\u003e50 × 21 × 11 in\u003c\/strong\u003e. One caveat is worth noting: the catalog also prints \u003cstrong\u003e1 270 × 559 × 279 mm\u003c\/strong\u003e, whose depth does not exactly match the stated 21 inches. We therefore have the \u003cstrong\u003edimensioned plan for the intended equipment\u003c\/strong\u003e confirmed before approving a tight space. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the outdoor unit, the published dimensions are \u003cstrong\u003e39 × 31 × 17 in\u003c\/strong\u003e, in catalog order. We do not use them alone to determine orientation, clearances, or support points. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn our layout proposal, we are also allowing space for the connections, access to the filters, and a suitable service opening. We want maintenance to be organized without having to dismantle an entire finished surface.\u003c\/p\u003e\n\u003ch3\u003eTwo separate electrical supplies to be provided\u003c\/h3\u003e\n\u003cp\u003eThe catalog specifies a power supply of \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e, and indicates that the indoor and outdoor units require \u003cstrong\u003eseparate power sources\u003c\/strong\u003e. The simplified reference to “220 V” therefore does not, by itself, describe all the work to be planned. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\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\"\u003eUnit\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eMinimum circuit ampacity — MCA\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eMaximum overcurrent protection — MOP\/MOCP\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor \u003cstrong\u003eDHR24CSB21S\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e24 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e40 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndoor \u003cstrong\u003eDHR24NDB21S\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e2 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e15 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\u003eThe outdoor and indoor values come from their respective tables. They are used to prepare the circuits and protective devices; we do not present them as continuous consumption. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe are having the wiring validated according to the nameplates and site conditions. When comparing bids, we recommend checking that the electrical assessment covers \u003cstrong\u003eboth units\u003c\/strong\u003e, not just the outdoor unit.\u003c\/p\u003e\n\u003ch3\u003eDistinguishing refrigerant lines from air ducts\u003c\/h3\u003e\n\u003cp\u003eThe refrigerant connection uses a \u003cstrong\u003e3\/8 in\u003c\/strong\u003e liquid line and a \u003cstrong\u003e5\/8 in\u003c\/strong\u003e gas line. YORK publishes a maximum total length of \u003cstrong\u003e50 meters\u003c\/strong\u003e and a maximum height difference of \u003cstrong\u003e15 meters\u003c\/strong\u003e between the units. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese limits concern the \u003cstrong\u003erefrigerant lines\u003c\/strong\u003e, not the permitted length of the air distribution ductwork. We are studying these two routes separately: the first connects the units; the second serves the rooms.\u003c\/p\u003e\n\u003cp\u003eThe ducted unit also includes an \u003cstrong\u003einternal condensate pump\u003c\/strong\u003e, and its table indicates a drainage connection with an outside diameter of \u003cstrong\u003e1 in\u003c\/strong\u003e. The catalog does not specify all of the pump's lifting requirements on this page. We are having the drainage route confirmed in the applicable installation documentation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eA standard wired controller, with options to be specified\u003c\/h3\u003e\n\u003cp\u003eFor this ducted unit, the catalog product page lists the \u003cstrong\u003estandard DWCR wired controller\u003c\/strong\u003e. We are retaining this ducted-specific indication rather than automatically assigning it the remote control of another indoor unit in the R Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe catalogue also describes the \u003cstrong\u003eDWCR2\u003c\/strong\u003e for the R Series, with seven-day programming, up to eight daily events, and lockout functions. We can consider this accessory when occupancy schedules justify more detailed programming, subject to compatibility with the equipment supplied. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur specification indicates \u003cstrong\u003eWi-Fi optional\u003c\/strong\u003e. We have the module, app, and available functions specified in the offer. We do not promise phone control based solely on the presence of the word Wi-Fi in the commercial specification.\u003c\/p\u003e\n\u003ch3\u003eCommissioning must include the ductwork\u003c\/h3\u003e\n\u003cp\u003eThe YORK manual calls for checking connections for leaks and evacuating the circuit. These checks are part of the refrigeration installation; they are not replaced by a simple airflow test. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the ducted portion, we also propose checking the distribution between the outlets and the selected settings. Our goal is to deliver a system whose operation the occupants understand, with clear identification of the control, filtration, and access points.\u003c\/p\u003e\n\u003cp\u003eIn \u003cstrong\u003eLongueuil\u003c\/strong\u003e, when modernizing the ventilation system of a multi-purpose building, we had identified unbalanced airflow, noise, and leaks in the existing ducts. The project included network modifications and final balancing. This work involved a different commercial installation, but it illustrates why we do not consider existing ducts automatically suitable for the new equipment. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eMaintaining a hidden system without forgetting it\u003c\/h3\u003e\n\u003cp\u003eWe recommend identifying access to the filter as soon as the work is completed and following the instructions corresponding to the installed system. The YORK manual specifically links recurring freeze protection to checks of the filter, air outlet, and return. We therefore avoid attributing every drop in performance to a lack of refrigerant. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTo prepare for a \u003cstrong\u003eHVAC service call\u003c\/strong\u003e, we ask for precise observations: does the problem affect only one room or all the outlets, does it occur in a particular mode, and does a message appear on the control? A photo of the code and a description of the noise are useful, without disassembling the unit.\u003c\/p\u003e\n\u003cp\u003eIf there are drops, a trace of moisture, or repeated shutdowns, we recommend a technical inspection rather than a succession of restarts.\u003c\/p\u003e\n\u003ch3\u003eCompare the installed price and the actual warranty\u003c\/h3\u003e\n\u003cp\u003eWe determine the price of a \u003cstrong\u003eYORK ducted installation\u003c\/strong\u003e based on the project: equipment, controls, ductwork, refrigerant lines, drainage, electrical work, and building adaptations. We recommend having openings and finishing work specified separately, especially when several trades are involved.\u003c\/p\u003e\n\u003cp\u003eThe warranty presented in our specification sheet is \u003cstrong\u003e10 years for the compressor, 10 years for parts, and no labor included in the 10-10-0 designation\u003c\/strong\u003e. Additional protection is indicated as available.\u003c\/p\u003e\n\u003cp\u003eThe catalogue nevertheless distinguishes a standard warranty of \u003cstrong\u003e7 years on the compressor and 5 years on parts\u003c\/strong\u003e from the extended \u003cstrong\u003e10-10\u003c\/strong\u003e coverage, which requires online registration for eligible residential applications. The option including ten years of labor requires the purchase of additional protection. We clarify the written terms based on residential or commercial use and the coverage selected. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003ePrepare the budget without assuming a subsidy\u003c\/h3\u003e\n\u003cp\u003eOur specification sheet identifies this combination as \u003cstrong\u003enot ENERGY STAR® certified\u003c\/strong\u003e. For the residential \u003cstrong\u003eLogisVert\u003c\/strong\u003e program, Hydro-Québec requires this certification for heat pumps installed on or after \u003cstrong\u003eNovember 26, 2025\u003c\/strong\u003e to be eligible for a subsidy. We therefore do not include unconfirmed financial assistance in the advertised net price. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWhen the subsidy is a decisive factor, we recommend comparing solutions based on their total installed cost and verified eligibility rather than on the unit price alone.\u003c\/p\u003e\n\u003ch3\u003eHave AirGreen prepare your ducted system project\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we offer a \u003cstrong\u003efree on-site estimate\u003c\/strong\u003e and installation and follow-up services throughout Greater Montreal. For this YORK, our proposal must specify both the ductwork and access requirements as well as the equipment specifications. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor your \u003cstrong\u003educted air conditioner in Montreal, Laval, Longueuil, on the North Shore or South Shore\u003c\/strong\u003e, contact us at \u003cstrong\u003e514-316-2973\u003c\/strong\u003e or \u003cstrong\u003e\u003ca class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003esales@airgreen.ca\u003c\/a\u003e\u003c\/strong\u003e. Prepare a few photos of the ceiling and a floor plan of the rooms to be served: we will be able to discuss integration options and prepare a quote tailored to your project.\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56157174923556,"sku":"DHR24CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_CLIMATISEUR_GAINABLE_YORK_SERIE_R_24000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_9184d649-d618-4b17-b6cd-8f20c6009712.png?v=1789500683"},{"product_id":"climatiseur-gainable-york-serie-r-20-seer-30000-btu","title":"YORK R Series 20 SEER Ducted Air Conditioner | 30000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eRooms served by ducts, without multiplying visible units\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eIn a renovation in \u003cstrong\u003eMontreal\u003c\/strong\u003e, a residential project in \u003cstrong\u003eLaval\u003c\/strong\u003e, or an office project in \u003cstrong\u003eLongueuil\u003c\/strong\u003e, we can consider air conditioning without placing a visible unit on every wall. The \u003cstrong\u003eYORK R Series 30,000 BTU ducted air conditioner\u003c\/strong\u003e uses a concealed indoor unit connected to ducts that deliver air to ceiling or wall grilles. YORK specifically provides for its installation above a suspended ceiling or in an open storage space suitable for the equipment. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we approach a ducted project by considering the equipment, ductwork, and technical access together. Our experience with this type of installation leads us to consider return air, building constraints, and future maintenance from the planning stage onward. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor the pairing presented here, the documented efficiency is 16 SEER.\u003c\/strong\u003e The designation \"R Series 20 SEER\" refers to a range that can reach 20 SEER, not to the efficiency of all its configurations. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThe correct pairing: DHR30NDB21S indoors and DHR30CSB21S outdoors\u003c\/h3\u003e\n\u003cp\u003eWe identify this version by the \u003cstrong\u003eDHR30NDB21S\u003c\/strong\u003e ducted indoor unit, paired with the \u003cstrong\u003eDHR30CSB21S\u003c\/strong\u003e outdoor unit. These references distinguish it from the ceiling cassette or floor-ceiling unit offered in the same series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur product sheet lists \u003cstrong\u003eAHRI 8578445\u003c\/strong\u003e as the reference for this system.\u003c\/p\u003e\n\u003cp\u003eAlthough its commercial name uses the word \u003cstrong\u003eair conditioner\u003c\/strong\u003e, the catalog classifies this system as a \u003cstrong\u003eheat pump\u003c\/strong\u003e: we can therefore examine its use for cooling and heating, within the published operating limits. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThe performance specific to the 30,000 BTU ducted format\u003c\/h3\u003e\n\u003cp\u003eThe table dedicated to ducted units, on \u003cstrong\u003epage 19 of the YORK catalog - page 21 of the PDF\u003c\/strong\u003e, provides the following specifications for the DHR30NDB21S:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer TyagGW_tableContainerWithTableOfContents\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eFeature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003ePublished value\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated cooling capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e28,200 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling capacity range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e8,200 to 29,600 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\u003e31,200 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating capacity range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e8,200 to 33,600 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeasonal cooling efficiency\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e16 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\u003e8.55 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\u003e9 HSPF\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePublished maximum airflow\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e826 CFM\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndicated static pressure range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e0 to 0.8 in. of water column\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 figures come from the \u003cstrong\u003educted model\u003c\/strong\u003e column, not from that of another indoor unit in the R Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore distinguish the commercial \u003cstrong\u003e30,000 BTU\u003c\/strong\u003e category from the manufacturer's stated nominal capacity of \u003cstrong\u003e28,200 BTU\/h\u003c\/strong\u003e. We also retain the \u003cstrong\u003eSEER, EER, and HSPF\u003c\/strong\u003e ratings from this documentation, without presenting them as SEER2, EER2, or HSPF2 values. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe R Series is equipped with a \u003cstrong\u003evariable-speed compressor\u003c\/strong\u003e. This modulation is one of the characteristics to examine alongside the building's needs, particularly when room usage varies throughout the day. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eMultiple grilles do not mean multiple independent temperatures\u003c\/h3\u003e\n\u003cp\u003eThe configuration presented belongs to the \u003cstrong\u003esingle-zone\u003c\/strong\u003e system family, consisting of an outdoor unit and an indoor unit. The ducted version then distributes the air through a duct network. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore separate two decisions: \u003cstrong\u003ethe rooms to be served\u003c\/strong\u003e and \u003cstrong\u003ethe desired level of independence between them\u003c\/strong\u003e. A homeowner who wants a common setpoint for several spaces does not have the same needs as a homeowner who wants to adjust each bedroom separately.\u003c\/p\u003e\n\u003cp\u003eFor your proposal, we suggest identifying the priority rooms, their occupancy schedules, and the temperature differences currently observed. We do not infer the number of adjustable zones from the number of supply registers alone.\u003c\/p\u003e\n\u003ch3\u003eStatic pressure and airflow: two figures to read together\u003c\/h3\u003e\n\u003cp\u003eYORK describes this unit as a \u003cstrong\u003emedium-static-pressure\u003c\/strong\u003e model and publishes a range up to \u003cstrong\u003e0.8 in. of water column\u003c\/strong\u003e. The catalog also provides the available airflow rates, but on this page it does not present a complete curve linking each airflow rate to each pressure. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the design, we compare these characteristics with the planned duct network: run lengths, changes in direction, connections, and grilles. We want to verify how the system is expected to operate as a whole, rather than relying solely on the \u003cstrong\u003e826 CFM\u003c\/strong\u003e figure.\u003c\/p\u003e\n\u003cp\u003eThis value corresponds to the unit’s published maximum airflow rate. We present it neither as the airflow rate of each grille nor as a guarantee of results for any duct network.\u003c\/p\u003e\n\u003ch3\u003eA sound level linked to the selected speed\u003c\/h3\u003e\n\u003cp\u003eThe brochure associates the four airflow rates, \u003cstrong\u003e826, 767, 708, and 531 ft³\/min\u003c\/strong\u003e, with the respective indoor sound pressure levels of \u003cstrong\u003e47, 46, 44, and 40 dB(A)\u003c\/strong\u003e. We compare these values in pairs: the maximum airflow rate and minimum sound level do not correspond to the same setting. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the outdoor unit \u003cstrong\u003eDHR30CSB21S\u003c\/strong\u003e, the published level is \u003cstrong\u003e58 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn our installation proposal, we pay particular attention to areas where noise would be most disruptive: near a home office, bedroom, or terrace. We define acoustic expectations before installation, without promising that a concealed unit will necessarily be inaudible.\u003c\/p\u003e\n\u003ch3\u003eHeating down to −18 °C: clarify the system’s role in winter\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit has a heating operating range of \u003cstrong\u003e−18 to 24 °C\u003c\/strong\u003e. In cooling mode, the published range is \u003cstrong\u003e−18 to 46 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe rated heating capacity of \u003cstrong\u003e31,200 BTU\/h\u003c\/strong\u003e is nevertheless given under the catalog’s test conditions, which notably indicate an outdoor temperature of \u003cstrong\u003e8 °C dry-bulb\u003c\/strong\u003e. We therefore do not automatically attribute it to operation at −18 °C. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical page does not provide capacity or coefficient of performance figures specific to −15 °C or −18 °C. For a project on the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e, the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, or in \u003cstrong\u003eMontérégie\u003c\/strong\u003e, we propose explicitly determining the expected contribution of this heat pump and the role of supplemental heating. The minimum operating temperature is not sufficient to justify removing an existing heating system.\u003c\/p\u003e\n\u003ch2\u003eDesign the ducted installation around the building, the ducts, and maintenance\u003c\/h2\u003e\n\u003ch3\u003eDraw the supply and return air routes before choosing the grilles\u003c\/h3\u003e\n\u003cp\u003eIn addition to the catalog, the \u003cstrong\u003eYORK installation manual\u003c\/strong\u003e separately illustrates the supply duct, return air, filter, and connections to the unit. The distribution diagram confirms that the project is not limited to the visible outlets in the rooms. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a renovation study in \u003cstrong\u003eLongueuil\u003c\/strong\u003e, for example, we might start with a plan comprising two bedrooms, an office, and a corridor. We would then ask where to place the supply outlets, how to arrange the return, and which access points to preserve. This is a \u003cstrong\u003edesign scenario\u003c\/strong\u003e, not an installation assigned to this YORK model.\u003c\/p\u003e\n\u003cp\u003eOne detail in the manual also deserves to be retained: the bottom-return configuration illustrated in this section is specified for \u003cstrong\u003e18,000 BTU units only\u003c\/strong\u003e. We do not apply this option to the 30,000 BTU model without technical confirmation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eA 50 × 22 × 11 in cabinet that must remain accessible\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit \u003cstrong\u003eDHR30NDB21S\u003c\/strong\u003e measures \u003cstrong\u003e50 × 22 × 11 in\u003c\/strong\u003e, in the order \u003cstrong\u003ewidth × depth × height\u003c\/strong\u003e, or approximately \u003cstrong\u003e1,270 × 559 × 279 mm\u003c\/strong\u003e. Its published net weight is \u003cstrong\u003e34 kg\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe do not treat these dimensions as the project's complete required opening. In the installation plan, we also allow for the space needed for connections and future servicing.\u003c\/p\u003e\n\u003cp\u003eFor the outdoor unit, the catalog lists the dimensions as \u003cstrong\u003e39 × 31 × 17 in\u003c\/strong\u003e. We retain their published order here; their orientation and installation clearances must be confirmed on the applicable technical drawing before preparing the support. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur recommendation is simple: \u003cstrong\u003eprovide service access before closing the ceiling\u003c\/strong\u003e. We want to be able to reach the components requiring inspection without turning a service call into a finishing project.\u003c\/p\u003e\n\u003ch3\u003eTwo power supplies to include in the quote\u003c\/h3\u003e\n\u003cp\u003eThe manufacturer specifies that the indoor and outdoor units require \u003cstrong\u003eseparate power supplies\u003c\/strong\u003e. They operate on a nominal \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e power supply, with different requirements:\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer TyagGW_tableContainerWithTableOfContents\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eElectrical data\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eOutdoor unit DHR30CSB21S\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eIndoor unit DHR30NDB21S\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Circuit Ampacity — MCA\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e24 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e2 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Overcurrent Protection — MOCP\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e40 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e15 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 come from the tables specific to the two units. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe have the qualified professional size the conductors and protection devices based on the documentation and nameplate of the delivered equipment. A maximum protection of \u003cstrong\u003e40 A\u003c\/strong\u003e does not describe a continuous consumption of 40 A.\u003c\/p\u003e\n\u003ch3\u003eRefrigerant, piping, and condensate: three separate checks\u003c\/h3\u003e\n\u003cp\u003eThis system uses \u003cstrong\u003eR-410A\u003c\/strong\u003e. The published refrigerant connections for the ducted version are \u003cstrong\u003e3\/8 in. for liquid\u003c\/strong\u003e and \u003cstrong\u003e5\/8 in. for gas\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the 30,000 BTU outdoor unit, the catalog states a maximum total piping length of \u003cstrong\u003e50 m\u003c\/strong\u003e and a maximum elevation difference of \u003cstrong\u003e15 m\u003c\/strong\u003e. We use these limits to assess the feasibility of the route; they do not define the length included in an installation quote. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eintegrated condensate pump\u003c\/strong\u003e is one of the components described for the ducted unit. The indoor drain connection is specified as having a \u003cstrong\u003e1 in. outside diameter\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDuring our job preparation, we identify the drainage route and access to the pump. We propose checking the drainage before finishing work, then keeping its location in the installation file.\u003c\/p\u003e\n\u003ch3\u003eDWCR wired controller and Wi-Fi: knowing what is actually included\u003c\/h3\u003e\n\u003cp\u003eThe ducted-model page lists the \u003cstrong\u003eDWCR wired zone controller as standard equipment\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur sales sheet mentions \u003cstrong\u003eoptional Wi-Fi\u003c\/strong\u003e. However, the brochure does not provide a Wi-Fi module reference for this pairing. Its presentation of the \u003cstrong\u003eEWPE Smart\u003c\/strong\u003e app targets the P, X, and Z series; it therefore does not confirm this app for the R Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe have the compatible accessory identified before including a telephone control in the quote. For a homeowner primarily looking for a weekly schedule, the catalog also describes the \u003cstrong\u003eDWCR2\u003c\/strong\u003e controller for the R Series, with seven-day programming and locking functions. Its supply and compatibility with the selected configuration remain to be specified. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eOur ducted-system projects: three constraints, three on-site solutions\u003c\/h3\u003e\n\u003cp\u003eThe following examples come from our \u003cstrong\u003epublished projects\u003c\/strong\u003e. They involve GREE and Fujitsu equipment and illustrate our integration work without attributing their features or results to the YORK model presented.\u003c\/p\u003e\n\u003ch4\u003eIn Montreal: routing the ducts through a renovated space\u003c\/h4\u003e\n\u003cp\u003eDuring the installation of an \u003cstrong\u003e18,000 BTU GREE ducted system in Montreal\u003c\/strong\u003e, we worked with restricted attic access and little space between the walls. The routing of the ducts had to preserve the renovated layout. We organized their path to three discreet outlets, with the goal of keeping the network out of sight. This project illustrates why we examine the available pathways before definitively setting the unit's position. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eIn Laval: maintaining access around a recessed unit\u003c\/h4\u003e\n\u003cp\u003eIn \u003cstrong\u003eSaint-Vincent-de-Paul, Laval\u003c\/strong\u003e, our installation of a \u003cstrong\u003eGREE All Match Slim Duct R32\u003c\/strong\u003e took place in an especially tight mechanical space. We coordinated the positioning of the unit, the connections, and the return air while keeping future maintenance among the installation criteria. The constraint was not only getting the unit in: we also had to preserve the ability to service it. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eIn Brossard: addressing an acoustic concern\u003c\/h4\u003e\n\u003cp\u003eOn the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, our installation of an \u003cstrong\u003e18,000 BTU Fujitsu ducted system in Brossard\u003c\/strong\u003e included a concealed network and three air outlets. The owner placed particular importance on noise, so we incorporated soundproofing measures and carefully insulated the ducts. The customer feedback reported in our summary highlighted the comfort achieved and the discreet nature of the installation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eHVAC maintenance covering the entire system\u003c\/h3\u003e\n\u003cp\u003eFor your \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e, we recommend keeping a sheet indicating access to the filter, unit, and drainage, as well as the control references. Our experience with installations in tight spaces shows the importance of maintaining this access after the work is completed. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBetween visits, we invite you to report any persistent change in noise, perceived airflow, or comfort. To prepare for a diagnosis, note the setpoint, the mode used, the rooms affected, and any displayed code. These observations help describe the problem without prematurely concluding that there is a compressor failure or a lack of refrigerant.\u003c\/p\u003e\n\u003cp\u003eWe also recommend not blocking the grilles with furniture and not closing all the outlets: the YORK manual requires keeping at least one supply outlet open. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eA warranty tied to the installation conditions\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e10-10-0\u003c\/strong\u003e notation on our sheet means \u003cstrong\u003eten years for the compressor, ten years for the parts, and no years of labor included in this designation\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe 2020 YORK catalogue presents standard coverage of \u003cstrong\u003eseven years for the compressor and five years for parts\u003c\/strong\u003e, followed by an extension to ten years after registration for eligible residential installations. Coverage including labor is also described, with the purchase of additional coverage. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore have the applicable conditions for the system being sold, whether the premises are for residential or commercial use, and the additional protections selected clearly specified. The quote should distinguish the stated duration from the costs actually covered.\u003c\/p\u003e\n\u003ch3\u003eCompare the installed price without assuming a grant\u003c\/h3\u003e\n\u003cp\u003eFor your \u003cstrong\u003educted air conditioner installation\u003c\/strong\u003e, we suggest having three price components itemized: the equipment and its controls, the duct network and connections, and related work such as openings and finishing.\u003c\/p\u003e\n\u003cp\u003eThis breakdown helps explain why two quotes for the same appliance may cover different work. In particular, we want the number of grilles, the return air, service access, and electrical work to be identified.\u003c\/p\u003e\n\u003cp\u003eOur product sheet states \u003cstrong\u003eENERGY STAR®: no\u003c\/strong\u003e and \u003cstrong\u003ecold-climate certification: no\u003c\/strong\u003e. Hydro-Québec specifies that heat pumps installed as of \u003cstrong\u003eNovember 26, 2025\u003c\/strong\u003e must be ENERGY STAR® certified to qualify for the corresponding LogisVert grant. \u003cstrong\u003eBased on the information provided for this YORK system, we therefore do not anticipate this grant in its budget.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eLet's prepare your ducted system project with AirGreen\u003c\/h3\u003e\n\u003cp\u003eWe offer a \u003cstrong\u003efree on-site estimate\u003c\/strong\u003e in \u003cstrong\u003eGreater Montreal\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. Our support includes equipment selection, installation, and after-sales service. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTo prepare for this meeting, we invite you to gather a floor plan of the rooms to be served, a few photos of the mechanical spaces, and a description of the existing heating system. This will allow us to assess the project beyond the stated capacity.\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 check the availability of the 30,000 BTU YORK ducted system, have its integration assessed, and obtain a quote tailored to your building.\u003c\/strong\u003e\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56157183246628,"sku":"DHR30CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_CLIMATISEUR_GAINABLE_YORK_SERIE_R_30000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_7d5bc389-915a-44b1-b97b-0ee55a9247e9.png?v=1789500683"},{"product_id":"climatiseur-gainable-york-serie-r-20-seer-36000-btu","title":"YORK R Series 20 SEER Ducted Air Conditioner | 36000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA concealed unit, with air distribution organized around your rooms\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we consider the \u003cstrong\u003eYORK R Series 36,000 BTU category ducted air conditioner\u003c\/strong\u003e for projects where integrating heating and cooling should keep the walls available. The indoor unit can be installed above a suspended ceiling or in a suitable mechanical space, then distribute air through ducts and ceiling or wall grilles. This installation flexibility is what YORK emphasizes in its presentation of the ducted unit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a renovation in \u003cstrong\u003eMontreal\u003c\/strong\u003e, a floor to be finished in \u003cstrong\u003eLaval\u003c\/strong\u003e, or a space to be reorganized in \u003cstrong\u003eLongueuil\u003c\/strong\u003e, we therefore assess the project based on the room layout. We want to determine where the unit can be installed, how air will reach the occupied spaces, and which access points will remain available after the finishing work.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTwo figures should be clarified from the outset: the combination shown has a 16 SEER rating, despite the “R Series 20 SEER” range designation. Its published rated cooling capacity is 34,000 BTU\/h, while 36,000 BTU corresponds to its commercial designation.\u003c\/strong\u003e These differences appear in the ducted-unit table on printed page 19 of the YORK catalogue. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThe specifications of the DHR36NDB21S paired with the DHR36CSB21S\u003c\/h3\u003e\n\u003cp\u003eWe identify this assembly by its two references: \u003cstrong\u003eDHR36NDB21S for the indoor ducted unit\u003c\/strong\u003e and \u003cstrong\u003eDHR36CSB21S for the outdoor unit\u003c\/strong\u003e. The catalogue presents this combination among the single-zone options in the R Series. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDespite the word “air conditioner” in the commercial title, this is a \u003cstrong\u003educted heat pump\u003c\/strong\u003e, since the system also provides heating.\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer TyagGW_tableContainerWithTableOfContents\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003ePublished value for the 36,000 BTU category ducted unit\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem type\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eHeat pump\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated cooling capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e34,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling capacity range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e10,800 to 39,000 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\u003e41,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating capacity range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e9,800 to 49,500 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeasonal cooling efficiency\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e16 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\u003e10.35 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\u003e9.0 HSPF\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 specifications come from the table dedicated to ducted units, not the table for ceiling cassettes or floor-ceiling units. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e Our sales sheet also lists the reference \u003cstrong\u003eAHRI 8578457\u003c\/strong\u003e for this assembly.\u003c\/p\u003e\n\u003cp\u003eWe retain the \u003cstrong\u003eSEER, EER, and HSPF\u003c\/strong\u003e ratings as published. The provided table does not list SEER2, EER2, or HSPF2 values for this combination.\u003c\/p\u003e\n\u003ch3\u003eModulating output, to be selected according to actual needs\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit in the R Series operates with an \u003cstrong\u003einverter-driven variable-speed compressor\u003c\/strong\u003e. YORK describes modulation intended to maintain the temperature while limiting the starts and abrupt stops of conventional systems. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTo select this capacity, however, we need more than the total area. We examine the windows, known insulation, ceiling height, occupancy, and the rooms actually involved. This load assessment is also part of our documented approach to ducted installations. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eLet us consider an \u003cstrong\u003eillustrative scenario\u003c\/strong\u003e: a homeowner wants to serve a large living room, two bedrooms, and an office. We do not automatically divide the capacity into four equal portions. Instead, we ask for details about each room's exposure, periods of use, and observed temperature differences. This preparation makes it possible to discuss the system to be designed, as well as verify whether a single control zone meets expectations.\u003c\/p\u003e\n\u003ch3\u003eA maximum airflow of 1,180 CFM, with four documented levels\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHR36NDB21S\u003c\/strong\u003e has four published airflow rates, from highest to lowest: \u003cstrong\u003e1,180, 1,121, 1,003, and 826 CFM\u003c\/strong\u003e. The corresponding indoor sound pressure levels are \u003cstrong\u003e55, 52, 48, and 45 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHere, we distinguish the unit's airflow from the airflow assigned to each room. The value of \u003cstrong\u003e1,180 CFM\u003c\/strong\u003e, or 1,180 cubic feet per minute, applies to the indoor unit; it does not represent the volume of air available at each grille.\u003c\/p\u003e\n\u003cp\u003eWe also review the acoustic data as a whole. \u003cstrong\u003e45 dB(A) is the minimum stated value, not the sound level for all operating modes.\u003c\/strong\u003e For a bedroom, office, or meeting room, we therefore discuss the unit's location, grilles, and return air before deciding on the installation layout.\u003c\/p\u003e\n\u003cp\u003eThe return-air path can, in particular, transmit fan noise when it connects directly to the living space. The Pacific Northwest National Laboratory technical guide recommends considering this aspect when selecting return-air paths. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eA stated static pressure of 0 to 0.8 in. of water column\u003c\/h3\u003e\n\u003cp\u003eThe brochure classifies this ducted unit among the \u003cstrong\u003emedium static pressure\u003c\/strong\u003e units and indicates a range of \u003cstrong\u003e0 to 0.8 in. of water column\u003c\/strong\u003e for the 36,000 BTU category model. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis data is used in the system design study. We examine the duct layout, changes in direction, grilles, and filtration to prepare a distribution system compatible with the unit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe table does not make it possible to assert that the maximum airflow of 1,180 CFM will be maintained at all pressures within the stated range.\u003c\/strong\u003e It does not provide the complete pressure-versus-airflow curve. We therefore request the applicable selection data before approving a configuration involving long runs or significant restrictions.\u003c\/p\u003e\n\u003cp\u003eFor a replacement, we also do not assume that the existing ducts will be suitable simply because they are already connected to a unit of similar capacity.\u003c\/p\u003e\n\u003ch3\u003eSupply and return air must be studied together\u003c\/h3\u003e\n\u003cp\u003eThe catalog presents the R Series as a \u003cstrong\u003esingle-zone\u003c\/strong\u003e family, with one outdoor unit associated with one indoor unit. Several grilles therefore do not automatically become multiple zones, each with an independent temperature. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe pay particular attention to rooms whose doors remain closed. The supplied air must be able to return to the unit; an inadequate return path can cause pressure imbalances and contribute to temperature differences. Dedicated returns, transfer grilles, and other suitable arrangements are among the solutions considered in technical air-distribution guides. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn our proposal, we therefore want to identify \u003cstrong\u003ethe supply-air grilles, the return air, and the intended operation with doors closed\u003c\/strong\u003e. This approach makes the project more concrete than simply specifying the number of outlets.\u003c\/p\u003e\n\u003ch3\u003eHeating down to −18 °C does not mean constant capacity\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit \u003cstrong\u003eDHR36CSB21S\u003c\/strong\u003e has a stated operating range of \u003cstrong\u003e−18 to 24 °C in heating mode\u003c\/strong\u003e, and \u003cstrong\u003e−18 to 46 °C in cooling mode\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe nominal heating capacity of \u003cstrong\u003e41,000 BTU\/h\u003c\/strong\u003e is published with test conditions that include an outdoor temperature of approximately \u003cstrong\u003e8 °C\u003c\/strong\u003e. We therefore do not automatically attribute it to operation at −18 °C. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur commercial data sheet indicates that this combination is certified neither \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e nor \u003cstrong\u003eENERGY STAR for cold climates\u003c\/strong\u003e. The supplied catalog does not detail its capacity or coefficient of performance at −15 °C. We therefore define the role of the existing heating system before recommending its replacement or retention.\u003c\/p\u003e\n\u003cp\u003eFor a project on the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e or in \u003cstrong\u003eMontérégie\u003c\/strong\u003e, we particularly want to specify which spaces the supplemental heating will still need to serve when demand exceeds the heat pump’s contribution.\u003c\/p\u003e\n\u003ch3\u003eA standard wired controller and WiFi to be confirmed in the proposal\u003c\/h3\u003e\n\u003cp\u003eThe ducted unit page lists the \u003cstrong\u003estandard DWCR wired controller\u003c\/strong\u003e. For more detailed scheduling needs, the catalog also offers the \u003cstrong\u003eDWCR2\u003c\/strong\u003e, with a seven-day schedule, eight events per day, and settings lockout functions. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis allows us to discuss a control system suited to office schedules or residential routines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWiFi is listed as optional on our sales sheet\u003c\/strong\u003e. However, the brochure section dedicated to the EWPE app covers the P, X, and Z series, without confirming an interface for this Series R combination. We therefore clarify the compatible accessory reference and its functions before including it in a quotation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003ePrepare a ducted installation that will remain accessible after finishing work\u003c\/h2\u003e\n\u003ch3\u003eReserve space for the cabinet and future service work\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures \u003cstrong\u003e48 × 31 × 11 in\u003c\/strong\u003e, in the \u003cstrong\u003ewidth × depth × height\u003c\/strong\u003e order indicated in the catalog. Its published net weight is \u003cstrong\u003e101 lb, or approximately 46 kg\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe do not limit the reserved space to the cabinet volume alone. We also allow the space needed for connections, duct transitions, filtration, and service panels.\u003c\/p\u003e\n\u003cp\u003eFor the outdoor unit, the catalog lists dimensions of \u003cstrong\u003e43.5 × 43 × 17 in\u003c\/strong\u003e, as well as a net weight of \u003cstrong\u003e205 lb, or approximately 93 kg\u003c\/strong\u003e. We confirm the dimension orientation and clearances on the applicable drawing before determining the location and supports. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe stated outdoor sound pressure level is \u003cstrong\u003e63 dB(A)\u003c\/strong\u003e. We include it in the discussion about placement, without confusing it with the level that will be perceived at a window or property line. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eProvide a power supply for each of the two units\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThis installation requires separate power supplies for the indoor and outdoor units.\u003c\/strong\u003e The manufacturer specifies this in the catalog notes. The published power supply is \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer TyagGW_tableContainerWithTableOfContents\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eElectrical data\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eDHR36CSB21S outdoor\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eDHR36NDB21S indoor\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum circuit ampacity — MCA\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e29 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum overcurrent protection — MOCP\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e45 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e15 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\u003eThe outdoor values are shown in the outdoor unit table; the indoor values are found in the ducted unit table. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe have the electrical work specified in the offer. These characteristics alone do not prescribe a wire gauge: we ask the responsible professional to validate the conductors and protection based on the nameplates and applicable requirements.\u003c\/p\u003e\n\u003ch3\u003e3\/8 in. and 5\/8 in. refrigerant connections\u003c\/h3\u003e\n\u003cp\u003eThe system uses \u003cstrong\u003eR-410A\u003c\/strong\u003e. The specified piping includes a \u003cstrong\u003e3\/8 in.\u003c\/strong\u003e liquid line and a \u003cstrong\u003e5\/8 in.\u003c\/strong\u003e gas line. The catalog indicates a maximum total length of \u003cstrong\u003e164 ft, or 50 m\u003c\/strong\u003e, and a maximum elevation difference of \u003cstrong\u003e49.2 ft, or 15 m\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe distinguish these limits from the air-duct route. They concern the refrigerant connection between the units, not the allowable length of the supply-air network.\u003c\/p\u003e\n\u003cp\u003eWe also distinguish a technical limit from an amount included in the price. The selected route, concealed sections, and necessary adaptations must appear in the quotation. The catalog also refers to the technical quotation sheets for verifying the connections. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eAn integrated condensate pump, with no improvised drainage\u003c\/h3\u003e\n\u003cp\u003eThe brochure states that the ducted unit has an \u003cstrong\u003einternal condensate pump\u003c\/strong\u003e and a drainage connection with a \u003cstrong\u003e1 in. outside diameter\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe determine the drainage point before closing the ceiling. The product information does not specify the pump's allowable lift height; we therefore have this limit confirmed in the applicable instructions rather than assuming that any route will be possible.\u003c\/p\u003e\n\u003cp\u003eWe also recommend providing access for inspecting the drainage and servicing the relevant components. Discreet integration of the unit should not make its maintenance unnecessarily difficult.\u003c\/p\u003e\n\u003ch3\u003eThree AirGreen projects that show the importance of the network\u003c\/h3\u003e\n\u003cp\u003eThe following examples come from our job-site reports. They concern other brands and illustrate our integration experience; they are not performance tests of this YORK system.\u003c\/p\u003e\n\u003ch4\u003eIn Montreal: adapting the ducts to a residence\u003c\/h4\u003e\n\u003cp\u003eFor the installation of a \u003cstrong\u003eFujitsu 18,000 BTU ducted system in Montreal\u003c\/strong\u003e, we created a distribution system with three outlets and ducts adapted to the layout of the house. Our report records the owner's favorable assessment after commissioning. This project showed us the importance of planning the distribution around the layout, rather than imposing the same route on every residence. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eIn Sainte-Rose, Laval: taking care with starts and junctions\u003c\/h4\u003e\n\u003cp\u003eOn a \u003cstrong\u003eGREE ducted-system project in Sainte-Rose\u003c\/strong\u003e, our work included several round sheet-metal branches connected to the plenum, that is, the distribution box. We worked on the transitions, sealing, and insulation of the connections. The documented result is an installation integrated into the intended spaces, without adding multiple visible units to the walls. This distribution work remains relevant when considering a YORK ducted system. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eIn Brossard: address an acoustic concern\u003c\/h4\u003e\n\u003cp\u003eIn a residence in \u003cstrong\u003eBrossard, on the South Shore\u003c\/strong\u003e, we installed a Fujitsu ducted system with three outlets. The owner had specifically expressed concern about noise. Our report describes the duct insulation and additional soundproofing measures, then reports their satisfaction with the comfort and quietness of the result. We address acoustic expectations in the same way before choosing the layout of a new system. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eDefine the final construction checks\u003c\/h3\u003e\n\u003cp\u003eFor your \u003cstrong\u003eHVAC installation\u003c\/strong\u003e, we recommend that the quote specify the checks planned before the system is handed over:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnections and supports\u003c\/strong\u003e, with identification of the appliances actually installed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe refrigeration circuit\u003c\/strong\u003e, with the tests and preparation procedures prescribed for the equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir distribution and drainage\u003c\/strong\u003e, with settings and checks suited to the network.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControls and maintenance access\u003c\/strong\u003e, explained to the owner or person responsible for the premises.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWe recommend keeping the appliance references, warranty documents, and filtration information with the invoice. This preparation makes communication easier when an intervention becomes necessary.\u003c\/p\u003e\n\u003ch3\u003ePlan for maintenance and describe problems precisely\u003c\/h3\u003e\n\u003cp\u003eWe choose the filtration location with accessibility in mind. Depending on the return-air configuration, the filter may be located near the appliance or at a return-air grille; this choice affects ease of maintenance. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe brochure provided does not specify a cleaning frequency for the \u003cstrong\u003eDHR36NDB21S\u003c\/strong\u003e. We therefore refer to the manufacturer's instructions and the filter actually installed, without assuming that every filter element is washable.\u003c\/p\u003e\n\u003cp\u003eFor a \u003cstrong\u003eservice call\u003c\/strong\u003e, we ask you to note the affected rooms, the selected mode, and any displayed code. A problem limited to one room, a newly occurring noise, or a water leak from the ceiling should be described separately. We recommend stopping the appliance in the presence of a major leak, a burning smell, or an electrical problem, rather than repeatedly restarting it.\u003c\/p\u003e\n\u003ch3\u003eCompare the installed cost, warranty and financial eligibility\u003c\/h3\u003e\n\u003ch4\u003eA quote tailored to the actual work\u003c\/h4\u003e\n\u003cp\u003eWe prepare the project by distinguishing the equipment, ductwork, grilles, filtration, controls and connections. We also specify access points, ceiling openings, electrical work and included or excluded finishing work.\u003c\/p\u003e\n\u003cp\u003eFor a ducted system, this distinction is particularly useful: two quotes may include the same unit but very different ductwork and work. We recommend comparing their contents before comparing only their total.\u003c\/p\u003e\n\u003ch4\u003eThe 10-10-0 formula must be accompanied by its terms and conditions\u003c\/h4\u003e\n\u003cp\u003eOur commercial sheet states \u003cstrong\u003e10 years on the compressor, 10 years on parts, and no labour included in this formula\u003c\/strong\u003e. The catalogue distinguishes a standard warranty of \u003cstrong\u003e7 years on the compressor and 5 years on parts\u003c\/strong\u003e, followed by extended residential coverage of \u003cstrong\u003e10 years on the compressor and parts\u003c\/strong\u003e, with registration. Coverage including labour is also presented with the purchase of an extension. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe confirm the applicable coverage for the equipment sold and its use. For a commercial project, we do not automatically apply residential conditions. The availability of additional coverage and its exclusions must be specified in writing.\u003c\/p\u003e\n\u003ch4\u003eLogisVert assistance must not be assumed\u003c\/h4\u003e\n\u003cp\u003eIn addition to the product specifications, Hydro-Québec indicates that heat pumps installed as of \u003cstrong\u003eNovember 26, 2025\u003c\/strong\u003e must be \u003cstrong\u003eENERGY STAR\u003c\/strong\u003e certified to qualify for LogisVert assistance. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSince our product sheet identifies this combination as uncertified, we do not deduct a financial incentive from its budget on that basis. When the subsidy influences your decision, we recommend comparing the installed costs with those of a combination whose eligibility has been confirmed.\u003c\/p\u003e\n\u003ch3\u003eEntrust your ducted-system project to AirGreen\u003c\/h3\u003e\n\u003cp\u003eChoosing AirGreen for this project means being able to discuss the unit, as well as the ductwork, access points and expected outcome in each space. Our ducted-system installations document this experience with air distribution and integration into existing buildings. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe invite you to prepare photos of the ceiling, the rooms to be served, the electrical panel and the proposed outdoor location. This will allow us to clarify the feasibility of the \u003cstrong\u003eYORK R Series 36,000 BTU unit\u003c\/strong\u003e and the work to be included.\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 ducted air conditioner project evaluated in Montréal, Laval, Longueuil, on the North Shore or South Shore.\u003c\/strong\u003e\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56157183279396,"sku":"DHR36CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_CLIMATISEUR_GAINABLE_YORK_SERIE_R_36000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_bc27785e-74d1-46a5-873b-844128df3e4d.png?v=1789500729"},{"product_id":"climatiseur-gainable-york-serie-r-20-seer-42000-btu","title":"YORK R Series 20 SEER Ducted Air Conditioner | 42000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eDistribute comfort throughout the rooms while keeping the equipment out of sight\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eFor a renovation in \u003cstrong\u003eMontreal\u003c\/strong\u003e, an office floor in \u003cstrong\u003eLaval\u003c\/strong\u003e or a residence on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, we can study an air-conditioning system that integrates with the architecture rather than taking up space on the walls. The \u003cstrong\u003eYORK R Series ducted system\u003c\/strong\u003e follows this approach: its indoor unit is concealed in a utility space and distributes air through ducts connected to wall or ceiling grilles. The YORK brochure expressly presents this installation option above a suspended ceiling or in a suitable storage space. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we evaluate this solution by starting with the spaces to be served. We examine where occupants want more cooling, the available paths for the ducts and the access that must be preserved after the work. A ducted installation must be designed as a whole: the equipment, air distribution network, control and integration with the building.\u003c\/p\u003e\n\u003ch3\u003eThe 42,000 BTU version has an efficiency rating of 16 SEER\u003c\/h3\u003e\n\u003cp\u003eWe distinguish the series name from the performance of the proposed combination. The \u003cstrong\u003eR Series\u003c\/strong\u003e is presented in the catalog as a family reaching up to \u003cstrong\u003e20 SEER\u003c\/strong\u003e, but the column for the ducted model \u003cstrong\u003eDHR42NDB21S\u003c\/strong\u003e, on printed page 19 of the brochure, indicates \u003cstrong\u003e16 SEER\u003c\/strong\u003e, \u003cstrong\u003e9.5 EER\u003c\/strong\u003e and \u003cstrong\u003e9 HSPF\u003c\/strong\u003e. These are the values that describe this version. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur product sheet identifies the system by the outdoor unit \u003cstrong\u003eDHR42CSB21S\u003c\/strong\u003e, the indoor unit \u003cstrong\u003eDHR42NDB21S\u003c\/strong\u003e and reference \u003cstrong\u003eAHRI 8578469\u003c\/strong\u003e. The catalog also associates these two models in its presentation of the R Series configurations. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer TyagGW_tableContainerWithTableOfContents\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eFeature\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003ePublished data\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommercial category\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e42,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated cooling capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e39,500 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\u003e44,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeasonal cooling efficiency\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e16 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\u003e9.5 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\u003e9 HSPF\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePublished maximum indoor airflow\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1,180 ft³\/min — CFM\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\u003e44 to 53 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\u003e61 dB(A)\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe indoor data comes from the ducted-system table; the refrigerant and outdoor sound pressure are listed in the table for the \u003cstrong\u003eDHR42CSB21S\u003c\/strong\u003e. We retain the \u003cstrong\u003eSEER, EER and HSPF\u003c\/strong\u003e designations used by YORK without presenting them as SEER2, EER2 or HSPF2 ratings. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe difference between \u003cstrong\u003e42,000 BTU\u003c\/strong\u003e, used to identify the category, and \u003cstrong\u003e39,500 BTU\/h\u003c\/strong\u003e, published as the nominal cooling capacity, should be retained in a technical comparison. We assess the building's needs based on documented performance, not solely on the figure stated in the product title.\u003c\/p\u003e\n\u003ch3\u003eA ducted heat pump, despite being called an \"air conditioner\"\u003c\/h3\u003e\n\u003cp\u003eWe present this YORK as a unit capable of cooling \u003cstrong\u003eand\u003c\/strong\u003e heating. The manufacturer's table classifies the ducted unit as a heat pump, and the outdoor unit uses an \u003cstrong\u003einverter-controlled variable-speed compressor\u003c\/strong\u003e. YORK describes this modulation as a way to adjust operation rather than reproduce the abrupt starts and stops of a conventional system. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor our selection, we therefore seek to understand needs during occupied periods, but also when the building is quieter. We ask which spaces are used all day, which rooms are used occasionally, and whether the current problems concern temperature, noise, or air distribution.\u003c\/p\u003e\n\u003cp\u003eWe do not infer a savings percentage from the \u003cstrong\u003e16 SEER\u003c\/strong\u003e efficiency rating alone. To prepare a relevant energy estimate, we would need to know the equipment being replaced, usage habits, and the building's characteristics.\u003c\/p\u003e\n\u003ch3\u003eFour ventilation settings to adjust air distribution\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHR42NDB21S\u003c\/strong\u003e has four documented airflow levels. The YORK table associates each setting with an indoor sound pressure level. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer TyagGW_tableContainerWithTableOfContents\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eSetting, from highest to lowest airflow\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eAirflow\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSound pressure\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFirst setting\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1,180 ft³\/min\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e53 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecond setting\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1,121 ft³\/min\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e52 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThird setting\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1,003 ft³\/min\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e48 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFourth setting\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e826 ft³\/min\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e44 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\u003eWe use these reference points to discuss the project's priorities. In an office where conversations need to remain easy, we examine the ventilation setting along with the air handler's location. In a large living area, we also work on the grille positions and the distribution among the different branches.\u003c\/p\u003e\n\u003cp\u003eOne catalog detail deserves attention: the \u003cstrong\u003eDHR36NDB21S\u003c\/strong\u003e and \u003cstrong\u003eDHR42NDB21S\u003c\/strong\u003e ducted units list the same four airflow rates, even though their nominal cooling capacities are respectively \u003cstrong\u003e34,000 and 39,500 BTU\/h\u003c\/strong\u003e. Choosing the higher category therefore does not automatically mean getting more air to distribute. We take this into account before proposing a replacement to correct an inadequately served room. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eA shared setpoint to organize according to room usage\u003c\/h3\u003e\n\u003cp\u003eThis combination belongs to \u003cstrong\u003esingle-zone systems\u003c\/strong\u003e: one outdoor unit is paired with one indoor unit. We do not present multiple grilles as equivalent to several independent units, each adjustable to a different temperature. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eLet us take a \u003cstrong\u003edesign example in Longueuil\u003c\/strong\u003e: a reception area, two offices, and a meeting room need to be served. We would begin by clarifying the occupancy hours and expectations for each space. A room used two hours a day raises different questions from an office occupied continuously.\u003c\/p\u003e\n\u003cp\u003eWe would then examine the air-distribution layout, the return-air path, and the controller location. If occupants request significantly different temperatures or completely separate schedules, we would study a different system arrangement rather than promise independence that this single-zone combination does not provide by default.\u003c\/p\u003e\n\u003ch3\u003eAn included wired controller and a Wi-Fi option to be defined\u003c\/h3\u003e\n\u003cp\u003eThe catalogue page for the ducted system presents the \u003cstrong\u003estandard DWCR wired controller\u003c\/strong\u003e. Our sales sheet, meanwhile, indicates \u003cstrong\u003eoptional Wi-Fi\u003c\/strong\u003e. We distinguish these two elements in the quotation: the control supplied with the unit and any accessory added for remote control. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe recommend clarifying from the outset who will use the control and which functions are actually desired. For a commercial space, we can discuss schedules and setpoint management. For a residence, we can examine the request for phone-based access. The compatible module, its app, and its availability must be confirmed before including these functions in the proposal.\u003c\/p\u003e\n\u003ch3\u003eHeating down to −18 °C: maintaining a realistic view of performance\u003c\/h3\u003e\n\u003cp\u003eThe advertised outdoor operating limit in heating mode for the \u003cstrong\u003eDHR42CSB21S\u003c\/strong\u003e is \u003cstrong\u003e−18 °C\u003c\/strong\u003e, with a published range extending up to \u003cstrong\u003e24 °C\u003c\/strong\u003e. This indication does not mean that the system delivers its nominal capacity of \u003cstrong\u003e44 000 BTU\/h\u003c\/strong\u003e at −18 °C. The catalogue's nominal heating conditions use an outdoor temperature of approximately \u003cstrong\u003e8 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn this table, we do not have detailed capacity and coefficient-of-performance data at −15 °C or −18 °C. We therefore do not reconstruct them from the nominal capacity.\u003c\/p\u003e\n\u003cp\u003eFor a heating project in \u003cstrong\u003eMontréal\u003c\/strong\u003e, on the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e or in \u003cstrong\u003eMontérégie\u003c\/strong\u003e, we define with you the expected contribution of the heat pump and the role of the existing heating system. Our data sheet identifies this combination as \u003cstrong\u003enot ENERGY STAR® certified for cold climates\u003c\/strong\u003e; we do not present it as a solution that automatically replaces any other heating source.\u003c\/p\u003e\n\u003ch2\u003eDesign concealed components with as much care as visible grilles\u003c\/h2\u003e\n\u003ch3\u003eConfirm the required clearance before closing the ceiling\u003c\/h3\u003e\n\u003cp\u003eA document review is necessary regarding the indoor dimensions. The brochure prints \u003cstrong\u003e48.3 × 30.5 × 1 in.\u003c\/strong\u003e, while giving \u003cstrong\u003e1,219 × 787 × 279 mm\u003c\/strong\u003e on the same line. These two sets of measurements do not agree. We therefore do not use the \u003cstrong\u003e1 in.\u003c\/strong\u003e height as an installation specification. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn addition to the brochure, the YORK technical data sheet \u003cstrong\u003eDFS-42RHPND-2020\u003c\/strong\u003e, specific to this combination, indicates \u003cstrong\u003e48.22 × 30.51 × 11.41 in.\u003c\/strong\u003e for the indoor cabinet, in the order \u003cstrong\u003ewidth × depth × height\u003c\/strong\u003e. For the outdoor unit, the dimensions in this data sheet, given in the same order, are \u003cstrong\u003e37.79 × 16.14 × 53.14 in.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe use these measurements for the preliminary study, then have the plan corresponding to the planned equipment confirmed. The cabinet volume alone does not represent the space required for the project: we also allow room for connections, transitions to the ducts, and the service opening.\u003c\/p\u003e\n\u003cp\u003eWe recommend validating this layout before finishing work begins. An access panel must be placed where servicing will be possible, not simply where it appears least visible.\u003c\/p\u003e\n\u003ch3\u003eHave the static pressure applicable to the system confirmed\u003c\/h3\u003e\n\u003cp\u003eThe brochure states a range of \u003cstrong\u003e0 to 0.8 in. of water column\u003c\/strong\u003e for the \u003cstrong\u003eDHR42NDB21S\u003c\/strong\u003e. However, the dedicated technical data sheet consulted in addition indicates \u003cstrong\u003e0 to 0.4 in. of water column\u003c\/strong\u003e for external static pressure. We point out this discrepancy rather than arbitrarily choosing the more favorable value. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBefore determining the dimensions and routing of the ducts, we have the applicable limit and ventilation data confirmed. \u003cstrong\u003eThe maximum airflow of 1,180 ft³\/min is not a guaranteed airflow for every system.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur study must specify the lengths, changes in direction, transitions, and grilles selected. We examine these elements together rather than adding outlets without verifying their impact on distribution.\u003c\/p\u003e\n\u003ch3\u003ePlan for power supplies to both units\u003c\/h3\u003e\n\u003cp\u003eThe published rated voltage is \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e. YORK specifies that the indoor and outdoor units require \u003cstrong\u003eseparate electrical supplies\u003c\/strong\u003e. We include this point in the scope of work from the initial assessment. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"group TyagGW_tableContainer TyagGW_tableContainerWithTableOfContents\"\u003e\n\u003cdiv class=\"TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eUnit\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eMinimum circuit ampacity — MCA\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eMaximum overcurrent protection — MOP\/MOCP\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutdoor unit \u003cstrong\u003eDHR42CSB21S\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e31 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e50 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndoor unit \u003cstrong\u003eDHR42NDB21S\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e15 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\u003eThe outdoor values appear in the outdoor unit table; those for the indoor unit appear in the ducted-unit table. We use them to prepare the electrical validation without confusing them with the unit's continuous power consumption. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe have the wiring and protection devices determined according to the nameplates and site conditions. For a replacement, we request verification of the existing circuits before considering them reusable.\u003c\/p\u003e\n\u003ch3\u003eSeparate three routes: air, refrigerant, and condensate\u003c\/h3\u003e\n\u003cp\u003eThe refrigerant connection for this system uses a \u003cstrong\u003e3\/8 in.\u003c\/strong\u003e liquid line and a \u003cstrong\u003e5\/8 in.\u003c\/strong\u003e gas line. The catalogue specifies a maximum total length of \u003cstrong\u003e50 metres\u003c\/strong\u003e and a maximum height difference of \u003cstrong\u003e15 metres\u003c\/strong\u003e between the units. These limits concern the refrigerant piping, not the air ducts. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore draw the distribution network to the rooms and the connection between the units separately. We also specify the visible sections, building penetrations, and associated finishing work. A maximum length allowed by the manufacturer is not automatically a length included in the price.\u003c\/p\u003e\n\u003cp\u003eThe ducted unit has an \u003cstrong\u003einternal condensate pump\u003c\/strong\u003e, and its technical page specifies a drainage connection with an \u003cstrong\u003eouter diameter of 1 in.\u003c\/strong\u003e We plan the route for this drain at the same time as the other connections, with access for future inspections. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eOur work in Laval: correct the ductwork before blaming the unit\u003c\/h3\u003e\n\u003cp\u003eIn an AirGreen project published about a \u003cstrong\u003eretail store in Laval\u003c\/strong\u003e, we had identified unsealed duct connections, leaks in the return-air plenum, and the absence of vibration isolation support on a main section. We accompanied the inspection with airflow, static pressure, and supply-air temperature measurements. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe work included redoing the fastenings, insulation work, sealing the joints, and rebalancing the distribution. Our report specifically notes the elimination of the observed vibrations and an \u003cstrong\u003eaverage acoustic improvement of 6 dB(A)\u003c\/strong\u003e in the sales area. These results concern this project, not a test of the YORK \u003cstrong\u003eDHR42NDB21\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe draw one useful rule for your project from this: when a space remains uncomfortable, we examine the distribution and supports before concluding that the equipment's capacity simply needs to be increased.\u003c\/p\u003e\n\u003ch3\u003eOrganize the handover around three checks\u003c\/h3\u003e\n\u003cp\u003eFor a ducted installation, we propose a structured handover:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigeration circuit\u003c\/strong\u003e: check the connections and perform the evacuation specified in the manufacturer's instructions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater drainage\u003c\/strong\u003e: check that the drainage works properly and that the relevant components are accessible.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndoor air distribution\u003c\/strong\u003e: check the selected settings and the distribution of air to the different outlets.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe YORK installation manual, consulted as a supplement to the catalogue, expressly calls for checking for leaks at the connections and using a vacuum pump rather than purging air with refrigerant. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe also want the handover to cover the controls, filtration, and maintenance access points. We recommend keeping the references for both units, their serial numbers, and the accessories installed with the invoice.\u003c\/p\u003e\n\u003ch3\u003eMaintain the network and recognize a drainage signal\u003c\/h3\u003e\n\u003cp\u003eOur maintenance experience in a \u003cstrong\u003edowntown Montreal store\u003c\/strong\u003e illustrates the value of looking beyond the outdoor unit. In this published project, the measurements revealed dust buildup in certain branches and an airflow imbalance. The work included cleaning, checking the filters, adjusting the balancing dampers, and adapting the operating schedules. This project involved a different commercial system. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor your YORK ducted system, we recommend easy access to the filters and regular drainage monitoring. Any change to the air distribution should also be reported: we want to know whether the problem affects all grilles or only one room.\u003c\/p\u003e\n\u003cp\u003eThe R Series manual identifies \u003cstrong\u003ecode E9\u003c\/strong\u003e as a protection associated with the water level. This code is not enough to conclude that the pump is defective, but it guides the technical inspection. If this message appears or there is any sign of water, we recommend having the unit inspected rather than repeatedly restarting it. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eCompare the complete submission, not just the price of the indoor unit\u003c\/h3\u003e\n\u003cp\u003eWe prepare the price for a \u003cstrong\u003eYORK ducted installation\u003c\/strong\u003e by distinguishing the equipment from the work required to integrate it. The quote must specify the controls, ductwork, grilles, supports, drainage, electrical and refrigerant connections, as well as testing.\u003c\/p\u003e\n\u003cp\u003eWe also request that openings and finishing work be clearly assigned. For an occupied space, we discuss the schedule and access to the rooms before arranging the work.\u003c\/p\u003e\n\u003cp\u003eOur commercial sheet presents a \u003cstrong\u003e10-10-0 year warranty\u003c\/strong\u003e, meaning ten years for the compressor, ten years for parts, and no labour included in this indication. However, the brochure distinguishes the standard \u003cstrong\u003e7-year compressor \/ 5-year parts\u003c\/strong\u003e warranty from the \u003cstrong\u003e10-10\u003c\/strong\u003e extension, which is linked to registration for eligible residential applications. It also presents labour coverage requiring the purchase of additional coverage. We therefore confirm the applicable written terms, particularly for commercial use. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eDo not assume unconfirmed LogisVert assistance\u003c\/h3\u003e\n\u003cp\u003eOur product sheet identifies this combination as \u003cstrong\u003enot ENERGY STAR® certified\u003c\/strong\u003e. Information published by Hydro-Québec specifies that heat pumps installed on or after \u003cstrong\u003eNovember 26, 2025\u003c\/strong\u003e must have this certification to qualify for financial assistance under \u003cstrong\u003eLogisVert\u003c\/strong\u003e. We therefore do not present this subsidy as guaranteed for the model described. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWhen financial assistance is a priority, we recommend comparing the project's total cost with that of a combination whose eligibility has been confirmed. This comparison must include building modifications and warranties, not just the advertised amount for the unit.\u003c\/p\u003e\n\u003ch3\u003eEntrust your ducted system project to AirGreen\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we offer a \u003cstrong\u003efree on-site estimate\u003c\/strong\u003e, installation services, and after-sales support throughout Greater Montréal. For this YORK system, we will assist you in assessing the capacity, ductwork, ceiling integration, and work required. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor your \u003cstrong\u003educted air conditioner in Montréal, Laval, Longueuil, on the North Shore or South Shore\u003c\/strong\u003e, contact us at \u003cstrong\u003e514-316-2973\u003c\/strong\u003e or at \u003cstrong\u003e\u003ca class=\"decorated-link cursor-pointer\" rel=\"noopener\"\u003esales@airgreen.ca\u003c\/a\u003e\u003c\/strong\u003e. Tell us which rooms need to be served and your comfort priorities: we will prepare a detailed quote, including the proposed references, inclusions, and warranty terms.\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56157183377700,"sku":"DHR42CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_CLIMATISEUR_GAINABLE_YORK_SERIE_R_42000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_222f069b-d4a4-4f2c-960d-c736bec29483.png?v=1789500730"},{"product_id":"climatiseur-gainable-york-serie-r-20-seer-48000-btu","title":"YORK R Series 20 SEER Ducted Air Conditioner | 48000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA built-in air conditioning system that leaves room for the layout\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003ePreserving the available wall space, integrating air conditioning into a renovation and distributing air through grilles selected for each room: this is what we aim for with a \u003cstrong\u003educted installation\u003c\/strong\u003e. For a project in \u003cstrong\u003eMontreal\u003c\/strong\u003e, \u003cstrong\u003eLaval\u003c\/strong\u003e or \u003cstrong\u003eLongueuil\u003c\/strong\u003e, the \u003cstrong\u003e48,000 BTU\u003c\/strong\u003e YORK R Series makes it possible to consider an indoor unit concealed above a suspended ceiling or in a suitable mechanical space. The manufacturer provides for distribution through ducts, with ceiling or wall diffusers. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis configuration pairs the outdoor unit \u003cstrong\u003eDHR48CSB21S\u003c\/strong\u003e with the indoor unit \u003cstrong\u003eDHR48NDB21S\u003c\/strong\u003e. Despite the commercial designation “ducted air conditioner,” we are presenting a \u003cstrong\u003eheat pump\u003c\/strong\u003e system that can cool and heat within the documented operating ranges. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we consider equipment selection and ductwork design to be inseparable decisions. Our ducted installation in Îles-Laval illustrates this approach: the available space, return air, duct routes and service access were assessed together before integrating the equipment. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eThe efficiency rating to use for this pairing is 16 SEER\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThe designation “R Series 20 SEER” does not mean that this ducted version achieves 20 SEER.\u003c\/strong\u003e The catalog presents a range capable of reaching this level, but the column for the \u003cstrong\u003eDHR48NDB21S\u003c\/strong\u003e indicates \u003cstrong\u003e16 SEER\u003c\/strong\u003e, \u003cstrong\u003e9.05 EER\u003c\/strong\u003e and \u003cstrong\u003e9 HSPF\u003c\/strong\u003e. We use the values specific to the model for comparisons and quotations. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe also retain the designations used in the document: \u003cstrong\u003eSEER, EER and HSPF\u003c\/strong\u003e, without renaming them SEER2, EER2 or HSPF2. The technical page provided does not publish these latter ratings for the pairing shown. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eYORK DHR48NDB21S specifications\u003c\/h3\u003e\n\u003cp\u003eOur commercial sheet associates this system with \u003cstrong\u003eAHRI 8578481\u003c\/strong\u003e. To identify the equipment precisely, we retain this reference along with the two model numbers, rather than using only the designation “YORK 48,000 BTU.”\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003educted unit table on page 19 of the catalog - page 21 of the PDF\u003c\/strong\u003e presents the following data:\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\"\u003ePublished value for the ducted version\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\u003eDHR48NDB21S\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated cooling capacity\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e48,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling capacity range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e20,400 to 49,500 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\u003e54,500 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating capacity range\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e17,500 to 58,000 BTU\/h\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeasonal cooling efficiency\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e16 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\u003e9.05 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\u003e9 HSPF\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePublished maximum airflow\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e1,475 cu. ft.\/min\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecified static pressure\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e0 to 0.8 in. water column\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 specifications apply to the \u003cstrong\u003educted version\u003c\/strong\u003e. We do not substitute for them the maximum capacities of a ceiling cassette using the same outdoor unit: the catalog tables distinguish between the different indoor configurations. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eSize also for periods of low demand\u003c\/h3\u003e\n\u003cp\u003eThe R Series outdoor unit uses a \u003cstrong\u003evariable-speed compressor\u003c\/strong\u003e. For this ducted combination, the published lower cooling limit is \u003cstrong\u003e20,400 BTU\/h\u003c\/strong\u003e, or \u003cstrong\u003e42.5% of its nominal 48,000 BTU\/h capacity\u003c\/strong\u003e. This ratio, calculated from the YORK table, is a sizing reference; it does not represent minimum electrical consumption. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe therefore examine requirements when the building is under heavy load, as well as when occupancy decreases. A large capacity can meet significant demand without automatically being the best choice for a partially used space.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAs an example of sizing\u003c\/strong\u003e, if a study of an area established a cooling requirement of 12,000 BTU\/h during a given period, we would compare that result with the published lower limit of 20,400 BTU\/h. We would not consider variable-speed technology sufficient justification to accept the model without continuing the analysis.\u003c\/p\u003e\n\u003cp\u003eFor your project, we propose documenting the area to be served, its periods of use, and the spaces that currently experience the greatest discomfort. This description provides a more useful basis than choosing a capacity solely to have a “reserve.”\u003c\/p\u003e\n\u003ch3\u003eDistribute 1,475 cu. ft.\/min without confusing total airflow with airflow per room\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDHR48NDB21S\u003c\/strong\u003e has four published airflow levels. The catalog associates them with the following sound pressure levels:\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 airflow\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eCorresponding indoor sound pressure\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1,475 cu. ft.\/min\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e53 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1,357 cu. ft.\/min\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e51 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1,210 cu. ft.\/min\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e46 dB(A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e944 cu. ft.\/min\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e41 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\u003eWe read these data together: \u003cstrong\u003e41 dB(A)\u003c\/strong\u003e corresponds to the lowest airflow in the table, not operation at 1,475 cu. ft.\/min. These levels describe the unit under the manufacturer's measurement conditions; they are not a measure of noise in each room after installation. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe maximum airflow is that of the entire unit. For our distribution proposal, we allocate the requirements among the zones rather than assigning this air volume to each grille. The catalogue does not, moreover, establish a universal number of outlets for this model.\u003c\/p\u003e\n\u003cp\u003eThe range of \u003cstrong\u003e0 to 0.8 in. of water column\u003c\/strong\u003e also helps us assess the ductwork's compatibility. The brochure describes a unit with \u003cstrong\u003emedium static pressure\u003c\/strong\u003e, but does not provide a complete curve on this page that would allow us to guarantee maximum airflow and maximum pressure simultaneously. We therefore have the planned operating point validated before selecting the final ductwork. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eDistribution to several spaces, with single-zone control\u003c\/h3\u003e\n\u003cp\u003eWe can study several supply grilles without presenting the system as a multizone system. YORK classifies this combination among \u003cstrong\u003esingle-zone\u003c\/strong\u003e configurations, with one outdoor unit paired with one indoor unit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a space comprising a main room and offices, we therefore ask whether a common temperature meets the requirements. When each room needs its own independent setpoint, we address that need separately in the design. \u003cstrong\u003eThe number of diffusers is not sufficient to establish the number of adjustable zones.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe also recommend clearly identifying the rooms served in the proposal. An expression such as “upstairs cooling” becomes much more precise when accompanied by a distribution plan and a description of the expected control.\u003c\/p\u003e\n\u003ch3\u003eHeating at −18 °C: distinguishing operation from available heat\u003c\/h3\u003e\n\u003cp\u003eThe heating operating range of the \u003cstrong\u003eDHR48CSB21S\u003c\/strong\u003e extends down to \u003cstrong\u003e−18 °C\u003c\/strong\u003e and up to \u003cstrong\u003e24 °C\u003c\/strong\u003e. In cooling mode, the catalogue indicates an outdoor range of \u003cstrong\u003e−18 to 46 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHowever, we do not present the \u003cstrong\u003e54,500 BTU\/h of nominal heating capacity\u003c\/strong\u003e as guaranteed output at −18 °C. The nominal conditions indicated below the table use, among other things, an outdoor dry-bulb temperature of \u003cstrong\u003e8 °C\u003c\/strong\u003e. The page does not provide capacity or coefficient-of-performance figures specific to −15 °C or −18 °C. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a property on the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e, the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, or in \u003cstrong\u003eMontérégie\u003c\/strong\u003e, we recommend defining this YORK's winter role before modifying the existing heating system. Our recommendation must specify what the heat pump is expected to cover and which equipment will provide backup when necessary.\u003c\/p\u003e\n\u003ch3\u003eWired control included and options to be identified\u003c\/h3\u003e\n\u003cp\u003eThe ducted model page presents the \u003cstrong\u003eDWCR wired controller as standard equipment\u003c\/strong\u003e. For more detailed scheduling needs, the catalog also describes the \u003cstrong\u003eDWCR2\u003c\/strong\u003e, intended for the R Series, with a seven-day schedule, up to eight daily events, and lockout functions. We have the selected controller specified in the quote. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOur sales sheet mentions \u003cstrong\u003eoptional Wi-Fi\u003c\/strong\u003e, but the provided brochure does not confirm a module for this pairing. It associates the EWPE Smart app with the P, X, and Z series. We therefore do not promise this app for the R Series without validation of the compatible accessory. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eFrom location selection to commissioning: prepare a complete ducted-system project\u003c\/h2\u003e\n\u003ch3\u003eReserve space for the equipment and future servicing\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit is listed as \u003cstrong\u003e53 × 29.5 × 14 in\u003c\/strong\u003e, in the order \u003cstrong\u003ewidth × depth × height\u003c\/strong\u003e, with a net weight of \u003cstrong\u003e56 kg\u003c\/strong\u003e. We use these dimensions in inches for an initial layout, then have the technical drawing confirmed before fabricating the supports and connections. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit has catalog dimensions of \u003cstrong\u003e38 × 53 × 16 in\u003c\/strong\u003e and a net weight of \u003cstrong\u003e105 kg\u003c\/strong\u003e. For this unit, we have the orientation of the dimensions confirmed on the applicable drawing rather than inferring its height and depth from an abbreviated line. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn our layout study, we also reserve access to connections and serviceable components. We propose determining the location of the access panels before closing the ceiling, along with verifying the handling route. The goal is not only to be able to install the equipment, but also to access it afterward.\u003c\/p\u003e\n\u003ch3\u003eProvide two separate power circuits\u003c\/h3\u003e\n\u003cp\u003eYORK documentation requires a \u003cstrong\u003eseparate power supply for each unit\u003c\/strong\u003e. The nominal power supply is \u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e; the electrical specifications differ between the outdoor unit and the ducted indoor unit. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\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\"\u003ePublished requirement\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eDHR48CSB21S outdoor\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eDHR48NDB21S indoor\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Circuit Ampacity — MCA\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e45 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e5 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Overcurrent Protection — MOCP\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e70 A\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e15 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\u003eWe distinguish these values from operating consumption: \u003cstrong\u003e70 A represents a published maximum protection rating here, not a stated continuous consumption\u003c\/strong\u003e. We have the qualified professional confirm the conductors, protective devices, and disconnecting means according to the nameplate of the delivered equipment.\u003c\/p\u003e\n\u003cp\u003eTo compare quotes, we recommend checking that the electrical work covers both units. An offer that provides only for the outdoor connection does not describe the entire requirement specified by the manufacturer.\u003c\/p\u003e\n\u003ch3\u003eOrganize the refrigerant routing and water drainage\u003c\/h3\u003e\n\u003cp\u003eThe YORK uses \u003cstrong\u003eR-410A\u003c\/strong\u003e, with \u003cstrong\u003e3\/8 in. liquid\u003c\/strong\u003e and \u003cstrong\u003e5\/8 in. gas\u003c\/strong\u003e refrigerant connections. For this outdoor unit, the catalog specifies a maximum total piping length of \u003cstrong\u003e70 m\u003c\/strong\u003e and a maximum elevation difference of \u003cstrong\u003e15 m\u003c\/strong\u003e. These limits help assess route feasibility; they do not represent a length automatically included in the installed price. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe ducted unit has an \u003cstrong\u003eintegrated condensate pump\u003c\/strong\u003e, and its drain connection is specified as having a \u003cstrong\u003e1 in. outside diameter\u003c\/strong\u003e. We clarify the drainage route and access to the pump before finishing work. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn addition to the catalog, the \u003cstrong\u003eYORK installation manual LIT-12012157\u003c\/strong\u003e calls for leak testing at the refrigerant connections and evacuation. We include these operations in the commissioning preparation rather than replacing them with a simple startup test. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eDesign the return air with as much attention as the supply air\u003c\/h3\u003e\n\u003cp\u003eThe installation diagram on \u003cstrong\u003epage 9 of the YORK manual\u003c\/strong\u003e shows the filter, return air, and supply duct as parts of the same circuit. We rely on this arrangement to prepare a complete system rather than a set of isolated outlets. \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 propose three validation steps:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eBefore installation\u003c\/strong\u003e, confirm the rooms served, routes, access, and responsibilities for related work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBefore finishing work\u003c\/strong\u003e, inspect the connections, insulation, drainage, and maintenance access.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuring commissioning\u003c\/strong\u003e, check the controls, operation, and air distribution, then explain the settings to the owner.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWe want these points to be included in the project planning. They make the project easier to follow and prevent the commissioning from being reduced to the fact that cold air comes out of a grille.\u003c\/p\u003e\n\u003ch3\u003eThree lessons from our projects in Montreal, Laval, and Longueuil\u003c\/h3\u003e\n\u003cp\u003eOur site reports provide concrete examples of integration and maintenance. \u003cstrong\u003eThe following interventions concern other systems, not a documented installation of the YORK DHR48CSB21S\/DHR48NDB21S pairing.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eIn Îles-Laval: choose the orientation before connecting the ducts\u003c\/h4\u003e\n\u003cp\u003eFor our installation of a \u003cstrong\u003eGREE All Match Slim Duct R32 in Îles-Laval\u003c\/strong\u003e, we worked in a ceiling cavity containing a wooden frame, insulation, and existing connections. We studied the orientation of the enclosure to preserve the necessary clearances and service access. The result described in our report is an integrated installation that avoids multiplying visible units in the rooms. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eIn Montreal: measure before concluding that capacity is insufficient\u003c\/h4\u003e\n\u003cp\u003eDuring maintenance at a downtown \u003cstrong\u003eMontreal\u003c\/strong\u003e store, we examined airflow problems near the display windows and in certain passage areas. The readings revealed dust in secondary ducts and unbalanced airflow. Our work notably included cleaning and adjusting the balancing dampers. This case reminds us that localized discomfort calls for a network diagnosis, not just consideration of the unit's size. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eIn Longueuil: adapting an existing network during a modernization\u003c\/h4\u003e\n\u003cp\u003eIn a multi-purpose building in \u003cstrong\u003eLongueuil\u003c\/strong\u003e, we modernized a central installation with duct leaks, noise, and unbalanced airflow. The project included duct modifications and final balancing. Our report records a reduction of \u003cstrong\u003e5 dB in work areas\u003c\/strong\u003e, along with positive feedback from the managers on the project follow-up. This result belongs to this specific modernization; we do not extrapolate it to every YORK ducted installation. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eMaintaining a concealed system without waiting for comfort to decline\u003c\/h3\u003e\n\u003cp\u003eFor \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e, we suggest keeping a simple record: filter location, access to the enclosure, drainage route, control references, and commissioning observations.\u003c\/p\u003e\n\u003cp\u003eThe YORK manual specifically links repeated triggers of the \u003cstrong\u003eE2\u003c\/strong\u003e frost protection to checks of the filter and airflow. It asks that supply and return air be checked periodically. We therefore do not treat a recurring fault as a signal to clear without diagnosis. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a service call, we invite you to photograph the displayed code and note the affected components, the mode used, and when the problem occurs. If there is a water mark or unusual noise, we recommend an inspection rather than improvised dismantling of the ceiling or enclosure.\u003c\/p\u003e\n\u003ch3\u003e10-10-0 warranty: specify the coverage that actually applies\u003c\/h3\u003e\n\u003cp\u003eOur commercial product sheet displays \u003cstrong\u003e10-10-0\u003c\/strong\u003e, meaning ten years for the compressor, ten years for parts, and no years of labor included under this designation.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e2020 YORK catalog\u003c\/strong\u003e nevertheless distinguishes a standard warranty of \u003cstrong\u003eseven years on the compressor and five years on parts\u003c\/strong\u003e, followed by a residential enhancement to ten years subject to registration. It also describes additional labor coverage requiring a separate purchase. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe confirm the conditions applicable to the sale and use of the premises. For a commercial property, we do not automatically apply coverage advertised for a residential application. The quote should also specify any travel fees and the conditions of any additional warranty.\u003c\/p\u003e\n\u003ch3\u003eEstablishing the budget without confusing the equipment, ductwork, and subsidy\u003c\/h3\u003e\n\u003cp\u003eThe price of an \u003cstrong\u003einstalled 48,000 BTU YORK ducted air conditioner\u003c\/strong\u003e should describe more than the two units. We propose distinguishing the equipment and its controls, the ductwork and grilles, the connections, and then the openings and finishes. We also specify the included piping length and any special access requirements.\u003c\/p\u003e\n\u003cp\u003eOur product sheet indicates \u003cstrong\u003eENERGY STAR®: no\u003c\/strong\u003e and \u003cstrong\u003ecold-climate certification: no\u003c\/strong\u003e. According to the conditions published by Hydro-Québec, heat pumps installed as of \u003cstrong\u003eNovember 26, 2025\u003c\/strong\u003e must be ENERGY STAR® certified to qualify for the corresponding LogisVert subsidy. \u003cstrong\u003eGiven the status indicated for this YORK system, we do not include this assistance in its budget.\u003c\/strong\u003e \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis allows us to compare complete costs without making an offer artificially cheaper by deducting unconfirmed financial assistance.\u003c\/p\u003e\n\u003ch3\u003eEntrust your ducted system project assessment to AirGreen\u003c\/h3\u003e\n\u003cp\u003eWe help property owners choose equipment, with installation and after-sales service 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. We offer a \u003cstrong\u003efree on-site estimate\u003c\/strong\u003e to assess the building's constraints and prepare a customized proposal. \u003cspan class=\"contents\"\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor this YORK system, our consultation will help clarify the required capacity, the ductwork to be created or adapted, the role of supplemental heating, and the necessary controls.\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 check the availability of the 48,000 BTU YORK Series ducted system and obtain a detailed quote for your property.\u003c\/strong\u003e\u003c\/p\u003e","brand":"York","offers":[{"title":"Default Title","offer_id":56157191602468,"sku":"DHR48CSB21S","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_CLIMATISEUR_GAINABLE_YORK_SERIE_R_48000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD_3efb30a6-a274-47c0-b674-acda7a9832e9.png?v=1789500730"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/collections\/CONDUIT_GAINABLE_YORK_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1790023937","url":"https:\/\/airgreen.ca\/en\/collections\/conduit-gainable-york-installation-a-montreal-laval-longueuil-rive-sud-et-rive-nord.oembed","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}