{"product_id":"thermopompe-centrale-arcoaire-hsh4-haut-de-gamme-3-5-tonnes-42000-btu-cabinet-fjma4x-r410a","title":"Central Heat Pump ARCOAIRE HSH4 Premium | 3.5 Tons - 42,000 BTU (Air Handler FJMA4X) - R410A","description":"\u003ch2\u003eReplace the old furnace with a system that heats and cools the whole house\u003c\/h2\u003e\u003cp\u003eWhen the furnace in a home with \u003cstrong\u003eductwork\u003c\/strong\u003e reaches the end of its life, there is no need to replace it with a unit that only heats. The \u003cstrong\u003eCentral Heat Pump ARCOAIRE HSH4 Premium | 3.5 Tons - 42,000 BTU (Air Handler FJMA4X) - R410A\u003c\/strong\u003e pairs the \u003cstrong\u003eHSH442GKA\u003c\/strong\u003e outdoor unit with the \u003cstrong\u003eFJMA4X42L0BB\u003c\/strong\u003e indoor unit, an air handler that takes the place of the old furnace and pushes air through the existing duct system. The same system provides \u003cstrong\u003ecooling\u003c\/strong\u003e in summer and most of the \u003cstrong\u003eheating\u003c\/strong\u003e in winter.\u003c\/p\u003e\u003cp\u003eThis pairing from Arcoaire's Premium range is offered while supplies last. The \u003cstrong\u003e3.5-ton\u003c\/strong\u003e size is aimed at homes whose load calculation falls between the 3-ton and 4-ton sizes.\u003c\/p\u003e\u003ch3\u003eWhat the air handler does\u003c\/h3\u003e\u003cp\u003eIn a central system, the indoor unit does three things. It carries the indoor coil, where the refrigerant releases its heat in winter and captures it in summer. It houses the blower that pushes air through the \u003cstrong\u003educts\u003c\/strong\u003e to each room and draws it back through the return grilles. And it holds the filter, which protects both the coil and the home's air quality.\u003c\/p\u003e\u003cp\u003eThe \u003cstrong\u003eFJMA4X42L0BB\u003c\/strong\u003e unit is the \"air handler\" named in the product title. In most homes, we install it where the old furnace stood, in the basement or a mechanical room, and connect it to the existing supply plenum and air return. Fittings are adapted on site so the duct system stays airtight.\u003c\/p\u003e\u003ch3\u003eA home that keeps its ducts\u003c\/h3\u003e\u003cp\u003eThe main advantage of a central system is that it reuses a duct system that is already in place. No wall units in the rooms, no refrigerant lines running along the outside walls of each bedroom: warm or cool air comes out of the same registers as before. For a home where you want to keep the walls clear, it is often the most discreet option.\u003c\/p\u003e\u003cp\u003eThe duct system still has to be able to do its job. Undersized ducts, return air openings that are too small or crushed sections limit airflow, and a central heat pump is more sensitive to this than a furnace. We inspect the duct system before the quote and list any corrections needed. If the ducts have never been cleaned, replacing the unit is a good time to do it.\u003c\/p\u003e\u003ch3\u003eHomes suited to the 3.5-ton size\u003c\/h3\u003e\u003cp\u003eThis size typically suits a single-storey home with a large open area and a finished basement, a mid-sized cottage with three bedrooms upstairs, or an older home enlarged over the years whose furnace serves every room. These are typical examples, not rules.\u003c\/p\u003e\u003cp\u003eThe size is always confirmed by a load calculation. Attic insulation, the condition of the windows, the share of below-grade walls and sun exposure change the result from one home to the next. We do this calculation during the visit, room by room, and recommend another size if this one does not fit.\u003c\/p\u003e\u003ch3\u003eBackup heat for deep cold\u003c\/h3\u003e\u003cp\u003eThis pairing is a conventional central heat pump; it is not listed as a cold-climate heat pump. The lower the outdoor temperature, the lower its heating capacity. During deep cold, the \u003cstrong\u003ebackup heat\u003c\/strong\u003e takes over.\u003c\/p\u003e\u003cp\u003eIn an all-electric installation, the backup comes from heating elements housed in the air handler. They only come on when the heat pump can no longer hold the setpoint, and they briefly warm the air during defrost cycles. We choose the capacity of this backup according to the load calculation and the capacity of the electrical panel, and we list it in the quote.\u003c\/p\u003e\u003ch3\u003eA thermostat set up for a heat pump\u003c\/h3\u003e\u003cp\u003eA central heat pump is controlled a little differently from a furnace. The thermostat must be compatible with a heat pump and its backup: it runs the outdoor unit first, then only calls on the elements when the house really needs them. We configure it during commissioning.\u003c\/p\u003e\u003cp\u003eA practical tip: avoid large nighttime temperature setbacks in the middle of winter. In the morning, to recover several degrees at once, the thermostat calls on the backup longer than necessary. A steady setpoint, or a modest setback, lets the heat pump do most of the work.\u003c\/p\u003e\u003ch3\u003eThe outdoor unit in winter\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eHSH442GKA\u003c\/strong\u003e outdoor unit works outside all winter. When frost forms on its coil, it switches to defrost mode for a few minutes: a cloud of white vapour may then rise from it, which is normal. Meltwater must be able to drain freely under the unit, without forming ice that builds back up toward the coil.\u003c\/p\u003e\u003cp\u003eThat is why we install it on a stand, above the snow line, away from gutters and snow sliding off the roof. The location also takes into account bedroom windows, the neighbours and access for maintenance.\u003c\/p\u003e\u003ch3\u003eCooling through the same duct system\u003c\/h3\u003e\u003cp\u003eIn summer, the cycle reverses: the indoor unit's coil captures heat from the air in the house and the outdoor unit releases it outside. Cool air travels through the same \u003cstrong\u003educts\u003c\/strong\u003e as the heat in winter, up to the upstairs bedrooms and down to the basement.\u003c\/p\u003e\u003cp\u003eThe coil removes moisture from the air at the same time. Condensed water flows through the indoor unit's condensate drain to a discharge point, and the house becomes comfortable without having to lower the setpoint excessively. For homes whose upper floor stays warm in July, we check the balance of the duct system and the position of the returns.\u003c\/p\u003e\u003ch3\u003eSystem ratings\u003c\/h3\u003e\u003cp\u003eThe pairing of the \u003cstrong\u003eHSH442GKA\u003c\/strong\u003e outdoor unit and the \u003cstrong\u003eFJMA4X42L0BB\u003c\/strong\u003e indoor unit is not listed with SEER2 ratings in the AHRI certification directory. We therefore publish no efficiency rating for this pairing. We confirm the ratings of the complete system before the quote; they also determine grant eligibility.\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. We compare the options with you during the visit, before the quote.\u003c\/p\u003e\u003ch2\u003eInstallation in a ducted home\u003c\/h2\u003e\u003cp\u003eThe indoor unit takes the place of the old furnace or air handler and connects to the existing \u003cstrong\u003educt system\u003c\/strong\u003e. Before the quote, we check duct sizes and the air return, because a central heat pump only delivers its full efficiency if the airflow keeps up. The outdoor unit goes on a stand, above the snow line, on a \u003cstrong\u003ededicated circuit\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003eHow we proceed\u003c\/h3\u003e\u003col\u003e\u003cli\u003e\u003cstrong\u003eFree in-home assessment\u003c\/strong\u003e: load calculation, inspection of the ducts and air return, choice of the outdoor unit location.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eWritten quote\u003c\/strong\u003e: size, backup heat, duct work and electrical connection are all listed.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eRemoval of the old unit\u003c\/strong\u003e and installation of the air handler, connected to the plenum and the return.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eRefrigerant line set\u003c\/strong\u003e insulated, evacuated and checked before the refrigerant is released, then condensate drain connected.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eElectrical connection\u003c\/strong\u003e on a dedicated circuit, after checking the panel's capacity.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eCommissioning\u003c\/strong\u003e: charge, temperatures, airflow, thermostat, then an explanation of the settings.\u003c\/li\u003e\u003c\/ol\u003e\u003ch3\u003eMaintenance: the filter first\u003c\/h3\u003e\u003cp\u003eReplace the system filter according to its format, keep the outdoor unit clear of snow and leaves, and plan annual \u003cstrong\u003eHVAC\u003c\/strong\u003e maintenance of the coil, condensate drain and electrical connections. A clogged filter is the most common cause of weak airflow: check it every month during the first season, until you know your home's rhythm.\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 HSH4 Premium | 3.5 Tons - 42,000 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\u003cp\u003e\u003cstrong\u003eOffered while supplies last.\u003c\/strong\u003e\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","brand":"Arcoaire","offers":[{"title":"Default Title","offer_id":67797951643940,"sku":"HSH442GKA","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/THERMOPOMPE_CENTRALE_ARCOAIRE_HSH4_3_5_TONNES_42000_BTU_R410A_00_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD.png?v=1793082539","url":"https:\/\/airgreen.ca\/en\/products\/thermopompe-centrale-arcoaire-hsh4-haut-de-gamme-3-5-tonnes-42000-btu-cabinet-fjma4x-r410a","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}