{"product_id":"thermopompe-centrale-arcoaire-n4h5s-performance-3-tonnes-36000-btu-cabinet-fjma4x-r410a","title":"Central Heat Pump ARCOAIRE N4H5S Performance | 3 Tons - 36,000 BTU (Air Handler FJMA4X) - R410A","description":"\u003ch2\u003eComfort for an entire large home, delivered through a single duct system\u003c\/h2\u003e\u003cp\u003eIn a large home, heating and cooling play out over several levels and long distances: from the cabinet in the basement to the bedroom at the end of the upstairs hallway. A \u003cstrong\u003ecentral heat pump\u003c\/strong\u003e connected to the existing \u003cstrong\u003educts\u003c\/strong\u003e serves all these rooms with one unit and one thermostat. The \u003cstrong\u003eCentral Heat Pump ARCOAIRE N4H5S Performance | 3 Tons - 36,000 BTU (Air Handler FJMA4X) - R410A\u003c\/strong\u003e pairs the \u003cstrong\u003eN4H5S36AKAAA\u003c\/strong\u003e outdoor unit with the \u003cstrong\u003eFJMA4X36L0BB\u003c\/strong\u003e cabinet, which pushes air through the duct system.\u003c\/p\u003e\u003cp\u003eIts certified ratings are \u003cstrong\u003e14.3 SEER2\u003c\/strong\u003e, \u003cstrong\u003e12.0 EER2\u003c\/strong\u003e and \u003cstrong\u003e7.5 HSPF2\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003eFor large homes with ducts\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003e3-ton\u003c\/strong\u003e size is meant for roomy homes that already have ducts: a two-storey house with a finished basement, a large enlarged bungalow, a detached house from the two-thousands with many rooms. In these homes, it handles the cooling of every room served and most of the heating.\u003c\/p\u003e\u003cp\u003eThe exact size is confirmed with a room-by-room \u003cstrong\u003eload calculation\u003c\/strong\u003e. A large, well-insulated home may need less; an older, heavily glazed or leaky home may approach the limit of this size. We decide during the visit.\u003c\/p\u003e\u003ch3\u003eOne system for three levels\u003c\/h3\u003e\u003cp\u003eThe cabinet, installed in the basement, feeds the basement, the main floor and the upper floor through the same duct system. Each level has different needs: the basement stays cool, the main floor gets the afternoon sun, the upper floor builds up heat in summer. A well-designed central system shares out the air according to these needs, with balancing dampers and return air on each level.\u003c\/p\u003e\u003cp\u003eOne system also means one filter, one annual maintenance visit and one thermostat to set. In a large home, it is the simplest way to heat and cool every room with the same unit.\u003c\/p\u003e\u003ch3\u003eAir distribution in a large home\u003c\/h3\u003e\u003cp\u003eThe larger the house, the more the duct system matters. A 3-ton heat pump moves a large volume of air; the main trunk, the branches and above all the return air must be able to let it through. The rooms at the end of long branches are the first to run short of air if the duct system is too small or leaky.\u003c\/p\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eThe main trunk\u003c\/strong\u003e must be sized for the heat pump's airflow, not only for that of an old furnace.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eReturn air\u003c\/strong\u003e should exist on each level, or at least on the main and upper floors.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eLong branches\u003c\/strong\u003e must be sealed and, if they cross an unheated space, insulated.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eBalancing dampers\u003c\/strong\u003e set each level's share according to the season.\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eA central heat pump only delivers its full efficiency if the airflow keeps up. What we find during the visit, and what needs correcting, appears in the quote.\u003c\/p\u003e\u003ch3\u003eThe N4H5S pairing and the FJMA4X cabinet\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eN4H5S36AKAAA\u003c\/strong\u003e outdoor unit holds the compressor, the outdoor coil and its fan. The \u003cstrong\u003eFJMA4X36L0BB\u003c\/strong\u003e cabinet is an \u003cstrong\u003eair handler\u003c\/strong\u003e: it houses the indoor coil, the blower that pushes air through the ducts and the \u003cstrong\u003ebackup electric heating elements\u003c\/strong\u003e. It takes the place of the old electric furnace and connects to the plenum and return air. The two units, certified together, run on \u003cstrong\u003eR-410A\u003c\/strong\u003e: in winter, the refrigerant captures heat from the outdoor air and delivers it to the cabinet; in summer, a reversing valve turns the cycle around.\u003c\/p\u003e\u003ch3\u003eWhat the certificate shows\u003c\/h3\u003e\u003cp\u003eThe certificate lists \u003cstrong\u003e20,400 BTU\/h at -8 °C\u003c\/strong\u003e (17 °F) and \u003cstrong\u003e15,800 BTU\/h at -15 °C\u003c\/strong\u003e (5 °F), with a \u003cstrong\u003eCOP of 2.02\u003c\/strong\u003e at -15 °C. The two points are measured separately; we report each one as published.\u003c\/p\u003e\u003cp\u003eCompared with the nominal size of 36,000 BTU, the listed capacity represents about 57% at -8 °C and 44% at -15 °C. The heat pump keeps heating at about twice the efficiency of a baseboard at -15 °C, but a large home then asks for more heat than it supplies; the backup makes up the difference.\u003c\/p\u003e\u003cp\u003eThese figures come from certificate \u003cstrong\u003eAHRI 210998836\u003c\/strong\u003e, as published in the AHRI certification directory.\u003c\/p\u003e\u003ch3\u003eBackup heat for a large home and electrical capacity\u003c\/h3\u003e\u003cp\u003eIn a large home, the cabinet's backup elements are a significant electrical load. They take over in deep cold for the share the heat pump cannot supply, then switch off when it is enough again. Their capacity must cover the coldest nights, but it must also fit within what the electrical service and panel can deliver.\u003c\/p\u003e\u003cp\u003eDuring the visit, we take stock: capacity of the electrical service, space in the panel, existing loads such as the water heater, range, dryer, a spa or a charging station. The outdoor unit's \u003cstrong\u003ededicated circuit\u003c\/strong\u003e and the cabinet's supply are added to that assessment. If a change is needed, it appears in the written quote, before signing.\u003c\/p\u003e\u003ch3\u003eThe ratings, one by one\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eSEER2 (14.3)\u003c\/strong\u003e: seasonal cooling efficiency, over a whole summer.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eEER2 (12.0)\u003c\/strong\u003e: cooling efficiency at full demand, on a heat-wave day.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eHSPF2 (7.5)\u003c\/strong\u003e: seasonal heating efficiency, the rating that weighs most on the bill of a large Quebec home.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eCOP (2.02 at -15 °C)\u003c\/strong\u003e: the heat delivered for each unit of electricity used at that temperature; a baseboard is at 1.\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eSummer in a large home\u003c\/h3\u003e\u003cp\u003eIn summer, the cabinet cools the air and removes humidity, which flows out through the condensate drain. Every room served is cooled, with no window unit. Upstairs, the heat built up under the roof calls for more cool air; we set the dampers to send more of it upstairs during the hot season.\u003c\/p\u003e\u003ch3\u003eLogisVert\u003c\/h3\u003e\u003cp\u003eThis pairing does not carry an amount on Hydro-Québec's \u003cstrong\u003eLogisVert\u003c\/strong\u003e list of October 19, 2026. If the grant matters for your project, we will point you to an eligible pairing of comparable size.\u003c\/p\u003e\u003ch2\u003eInstallation by AirGreen\u003c\/h2\u003e\u003ch3\u003eThe job\u003c\/h3\u003e\u003col\u003e\u003cli\u003e\u003cstrong\u003eVisit and load calculation\u003c\/strong\u003e: survey of each room on each level, inspection of the duct system and the electrical panel.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eRemoval\u003c\/strong\u003e of the old electric furnace and the old air conditioner, with recovery of the refrigerant.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eFJMA4X cabinet\u003c\/strong\u003e: connection to the plenum and return air, condensate drain to a floor drain or a pump.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eOutdoor unit\u003c\/strong\u003e: on a stand or a bracket, above the snow line, away from roof drips and dryer vents.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eRefrigerant line\u003c\/strong\u003e: insulated copper, brazing, pressure test and vacuum.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eElectrical\u003c\/strong\u003e: dedicated circuit, outdoor disconnect, power to the backup and thermostat.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eCommissioning\u003c\/strong\u003e: refrigerant charge, airflow, defrost, balancing between the three levels, then an explanation of how everything works.\u003c\/li\u003e\u003c\/ol\u003e\u003ch3\u003eMaintenance and warranty\u003c\/h3\u003e\u003cp\u003eCheck the cabinet filter every month in season and replace it according to its format; in a large home, it loads up faster. Keep the outdoor unit clear of snow and leaves, and do not cover it in winter. Plan annual \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e of the coils, the condensate drain and the electrical connections. In winter, the white vapour during defrost is normal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 10 years on the compressor, 10 years on parts and 6 years on labor.\u003c\/p\u003e\u003ch3\u003eAirGreen, for the life of the installation\u003c\/h3\u003e\u003cp\u003eA family business active for more than fifteen years in \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, we hold RBQ licences for ventilation, refrigeration and electrical work and carry \u003cstrong\u003e$5,000,000\u003c\/strong\u003e in liability insurance. The in-home assessment is free, the quote is in writing, and our \u003ca href=\"\/en\/pages\/financement-avec-financeit\"\u003efinancing options\u003c\/a\u003e let you choose the right unit rather than the cheapest one.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRequest your free estimate for the Central Heat Pump ARCOAIRE N4H5S Performance | 3 Tons - 36,000 BTU (Air Handler FJMA4X) - R410A. We assess the home room by room and confirm the right size and your grant eligibility before signing.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Arcoaire","offers":[{"title":"Default Title","offer_id":67797946794276,"sku":"N4H5S36AKAAA","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_CENTRALE_ARCOAIRE_N4H5S_3_TONNES_36000_BTU_R410A_00_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD.png?v=1793082547","url":"https:\/\/airgreen.ca\/en\/products\/thermopompe-centrale-arcoaire-n4h5s-performance-3-tonnes-36000-btu-cabinet-fjma4x-r410a","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}