{"product_id":"thermopompe-centrale-arcoaire-r4h5s-economique-3-tonnes-36000-btu-cabinet-fjma4x-r410a","title":"Central Heat Pump ARCOAIRE R4H5S Economy | 3 Tons - 36,000 BTU (Air Handler FJMA4X) - R410A","description":"\u003ch2\u003eReplace the central air conditioner and the electric furnace with a single heat pump\u003c\/h2\u003e\u003cp\u003eIn many large homes in the region, comfort relies on two units installed long ago: an electric furnace in the basement for winter and a central air conditioner outside for summer. When one or the other reaches the end of its life, a \u003cstrong\u003ecentral heat pump\u003c\/strong\u003e can replace both, reusing the existing \u003cstrong\u003educts\u003c\/strong\u003e. The \u003cstrong\u003eCentral Heat Pump ARCOAIRE R4H5S Economy | 3 Tons - 36,000 BTU (Air Handler FJMA4X) - R410A\u003c\/strong\u003e pairs the \u003cstrong\u003eR4H5S36AKAAA\u003c\/strong\u003e outdoor unit with the \u003cstrong\u003eFJMA4X36L0BB\u003c\/strong\u003e cabinet, which takes the furnace's place.\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. The R4H5S series is Arcoaire's Economy series: a conventional pairing, sized for a large home.\u003c\/p\u003e\u003ch3\u003eWhich homes\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003e3-ton\u003c\/strong\u003e size is aimed at large homes that already have ducts: a large bungalow with a finished basement, a two-storey house, a detached house with many rooms. It handles the cooling of every room served and most of the heating.\u003c\/p\u003e\u003cp\u003eBe careful, however, not to copy the old air conditioner's size automatically. Many were chosen one size too big, and the house has often changed since: replaced windows, an insulated attic, a finished basement. Our room-by-room \u003cstrong\u003eload calculation\u003c\/strong\u003e confirms the right size before any quote.\u003c\/p\u003e\u003ch3\u003eWhat stays\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eThe duct system\u003c\/strong\u003e, if it is in good condition and large enough for the heat pump's airflow.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eThe supply and return grilles\u003c\/strong\u003e, with corrections where needed.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eThe cabinet location\u003c\/strong\u003e, where the old furnace stood, with its plenum and return air.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eThe thermostat location\u003c\/strong\u003e, if it is well placed in the house.\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eThe duct system is the centrepiece. A central heat pump only delivers its full efficiency if the airflow keeps up; we therefore check duct sizes and the air return before confirming they can stay as they are.\u003c\/p\u003e\u003ch3\u003eWhat gets replaced\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eThe electric furnace\u003c\/strong\u003e gives way to the \u003cstrong\u003eFJMA4X36L0BB\u003c\/strong\u003e cabinet, an \u003cstrong\u003eair handler\u003c\/strong\u003e that houses the coil, the blower and the \u003cstrong\u003ebackup electric heating elements\u003c\/strong\u003e.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eThe outdoor air conditioner\u003c\/strong\u003e gives way to the \u003cstrong\u003eR4H5S36AKAAA\u003c\/strong\u003e unit, which cools in summer and heats in winter.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eThe thermostat\u003c\/strong\u003e is replaced with a model designed for a heat pump with backup.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eThe outdoor unit's pad\u003c\/strong\u003e is generally replaced with a raised stand, for the reason explained below.\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eThe old air conditioner's refrigerant line is assessed during the visit: its condition, its route and its compatibility determine whether it can be kept or whether a new line is preferable. We state this in the written quote.\u003c\/p\u003e\u003ch3\u003eWhy the outdoor unit must be raised\u003c\/h3\u003e\u003cp\u003eAn air conditioner only runs in summer; sitting on the ground, it has nothing to fear from snow. A heat pump, on the other hand, works all winter. If snow surrounds it, air flows poorly through its coil and its efficiency drops. During defrost, it also produces meltwater, which must drain under the unit without freezing against it.\u003c\/p\u003e\u003cp\u003eThat is why we install the outdoor unit on a raised bracket or stand, above the snow line, away from roof drips and corners where snow piles up. We also avoid dryer vents and, as far as possible, bedroom windows. A raised stand also makes maintenance easier and keeps the unit away from the leaves and debris that pile up on the ground in the fall.\u003c\/p\u003e\u003ch3\u003eThe R4H5S and FJMA4X pairing\u003c\/h3\u003e\u003cp\u003eThe two units are certified together and linked by an insulated copper refrigerant line. They run on \u003cstrong\u003eR-410A\u003c\/strong\u003e: in winter, the refrigerant captures heat from the outdoor air, the compressor concentrates it and the cabinet's coil releases it to the air of the house; in summer, a reversing valve turns the cycle around and the heat is released outdoors. Because it moves heat instead of producing it, the heat pump delivers more energy than it uses.\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 and \u003cstrong\u003e15,800 BTU\/h at -15 °C\u003c\/strong\u003e. The two points are measured separately; we report each one as published. At the -15 °C point, the \u003cstrong\u003eCOP\u003c\/strong\u003e is \u003cstrong\u003e2.02\u003c\/strong\u003e.\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. These figures show what you gain over the electric furnace, which has a COP of 1, and what is left to the backup in deep cold.\u003c\/p\u003e\u003cp\u003eThese figures come from certificate \u003cstrong\u003eAHRI 210999017\u003c\/strong\u003e, as published in the AHRI certification directory.\u003c\/p\u003e\u003ch3\u003eBackup heat in deep cold\u003c\/h3\u003e\u003cp\u003eThe cabinet's backup elements play, in a way, the role of the old furnace, but only when needed. In deep cold, they supplement the heat pump's heat, then switch off as soon as it is enough again. The thermostat manages this handover.\u003c\/p\u003e\u003cp\u003eIn a large home, the backup is a significant electrical load. We size it from the load calculation and the capacity of the electrical panel, often reusing part of the old furnace's power supply; everything appears in the written quote.\u003c\/p\u003e\u003ch3\u003eThe ratings and what they mean\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eSEER2\u003c\/strong\u003e of \u003cstrong\u003e14.3\u003c\/strong\u003e measures cooling efficiency over a full summer; the \u003cstrong\u003eEER2\u003c\/strong\u003e of \u003cstrong\u003e12.0\u003c\/strong\u003e, cooling efficiency at full demand on a hot day. The \u003cstrong\u003eHSPF2\u003c\/strong\u003e of \u003cstrong\u003e7.5\u003c\/strong\u003e measures heating efficiency over a season: it is the most telling rating for a home heated most of the year. \u003cstrong\u003eCOP\u003c\/strong\u003e is read at a specific temperature; at -15 °C, this pairing delivers about twice the energy it uses.\u003c\/p\u003e\u003cp\u003eThese are the ratings of a conventional system. If you are aiming for higher ratings or a grant, we will also show you pairings of comparable size that meet those goals.\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\u003c\/strong\u003e: load calculation, inspection of the ducts, return air and electrical panel, choice of the outdoor location.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eRemoval\u003c\/strong\u003e of the air conditioner, with recovery of the refrigerant, and of the electric furnace.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eFJMA4X cabinet\u003c\/strong\u003e: installed where the furnace stood, connected 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 raised stand, above the snow line.\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: \u003cstrong\u003ededicated circuit\u003c\/strong\u003e, outdoor disconnect, power to the backup and a heat pump thermostat.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eCommissioning\u003c\/strong\u003e: refrigerant charge, airflow, defrost, settings, 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. Clear the outdoor unit after storms and do not cover it in winter; unlike the old air conditioner, it must stay free all year. Plan annual \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e of the coils, the condensate drain and the electrical connections. The white vapour during defrost, in winter, 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 R4H5S Economy | 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":67797946827044,"sku":"R4H5S36AKAAA","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_CENTRALE_ARCOAIRE_R4H5S_3_TONNES_36000_BTU_R410A_00_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD.png?v=1793082548","url":"https:\/\/airgreen.ca\/en\/products\/thermopompe-centrale-arcoaire-r4h5s-economique-3-tonnes-36000-btu-cabinet-fjma4x-r410a","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}