{"product_id":"thermopompe-centrale-senville-r454b-3-tonnes-36000-btu","title":"SENVILLE R454B Central Heat Pump | 3 Tons - 36000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eA 3-ton central heat pump designed to replace the old system without sacrificing comfort during Quebec's cold spells\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eWhen a homeowner already has a duct network, replacing an old central air conditioner or an aging heat pump must be evaluated differently from a wall-mounted project. The question is not simply whether to choose “3 tons because the old unit was 3 tons.” The heat load, available airflow, duct dimensions, electrical capacity, low-temperature heating requirements, and compatibility with the existing installation must all be verified.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e3-ton, 36,000 BTU SENVILLE SENDC-36HF R454B central heat pump\u003c\/strong\u003e is designed precisely for this type of project. The manufacturer's documentation identifies the system as the \u003cstrong\u003eSENDC-36HF\u003c\/strong\u003e, a 36,000 BTU central air conditioning and heat pump system. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we view this model as a particularly relevant solution for certain homes in \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e where a duct network is already present and the owner wants to switch to a more modern inverter technology operating with \u003cstrong\u003eR-454B\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe combination listed on our AirGreen product sheet is:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENDC-36HF-OG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eIndoor unit: SENDC-36HF-IG\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eNominal capacity: 3 tons \/ 36,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735328\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR®: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR® Cold Climate: yes\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eENERGY STAR ID: 3649597\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 17.4\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 11.7\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-4: 10.3\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHeating down to -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWiFi: optional\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eVoltage: 220 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePiping: 3\/8 in – 3\/4 in\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 41 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 50 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum indoor airflow: 1,188 CFM\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e3 tons means 36,000 BTU, but the inverter completely changes how that capacity is used\u003c\/h3\u003e\n\u003cp\u003eOne ton of cooling corresponds to approximately 12,000 BTU\/h. A \u003cstrong\u003e3-ton\u003c\/strong\u003e unit therefore corresponds to a nominal capacity of approximately \u003cstrong\u003e36,000 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWith an inverter heat pump, however, this value is not a fixed capacity.\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure indicates a cooling range from \u003cstrong\u003e13,000 to 47,400 BTU\/h\u003c\/strong\u003e and a heating range from \u003cstrong\u003e11,000 to 57,200 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis modulation is particularly useful in a central system.\u003c\/p\u003e\n\u003cp\u003eAt the beginning of a hot summer day, demand may be high. As the indoor temperature then approaches the setpoint, the compressor can reduce its speed instead of operating only in on-off cycles.\u003c\/p\u003e\n\u003cp\u003eIn heating mode, the principle is similar. A November day a few degrees above freezing does not impose the same load as a January night at -20 °C. The inverter allows the system to adjust its output more closely to the actual load.\u003c\/p\u003e\n\u003cp\u003eThis is something we examine carefully when \u003cstrong\u003ereplacing a central heat pump in Montreal or Laval\u003c\/strong\u003e, because the comfort provided by a central system depends greatly on the unit's ability to maintain a stable temperature without unnecessarily increasing the number of start-ups.\u003c\/p\u003e\n\u003ch3\u003eUp to 1,400 sq. ft. according to Senville: why we never size a system based on square footage alone\u003c\/h3\u003e\n\u003cp\u003eSenville presents this 36,000 BTU unit as suitable for spaces of up to approximately \u003cstrong\u003e1,400 sq. ft.\u003c\/strong\u003e, for residential or commercial applications. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis indication is useful for positioning the product, but it should never replace a load calculation.\u003c\/p\u003e\n\u003cp\u003eWe regularly see two homes of comparable size with very different requirements. A well-insulated property in \u003cstrong\u003eBoucherville\u003c\/strong\u003e with newer windows may require much less energy than an older building of the same size in \u003cstrong\u003eMontreal\u003c\/strong\u003e, even if both have a central system.\u003c\/p\u003e\n\u003cp\u003eWe must consider factors including insulation, air infiltration, windows, ceiling height, solar exposure, number of floors, basement heat loss, and ductwork configuration.\u003c\/p\u003e\n\u003cp\u003eThe presence of an old 36,000 BTU unit is not proof that 36,000 BTU is still the right capacity. Renovations, window replacements, or improved insulation may have changed the building's requirements.\u003c\/p\u003e\n\u003ch3\u003eThe performance at -8 °C, -15 °C, and -30 °C is more informative than the statement “operates at -30 °C”\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen data sheet provides three particularly interesting figures for our climate.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-8 °C\u003c\/strong\u003e, the listed capacity is \u003cstrong\u003e31,800 BTU\/h\u003c\/strong\u003e, with a COP of approximately \u003cstrong\u003e2.56\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-15 °C\u003c\/strong\u003e, the listed capacity reaches \u003cstrong\u003e39,000 BTU\/h\u003c\/strong\u003e, with a COP of approximately \u003cstrong\u003e1.9\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003e-30 °C\u003c\/strong\u003e, the listed maximum capacity is still \u003cstrong\u003e27,800 BTU\/h\u003c\/strong\u003e, with a COP of approximately \u003cstrong\u003e1.59\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer's documentation confirms that the system is designed to provide heating down to \u003cstrong\u003e-22 °F, or -30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese figures illustrate an important distinction we often explain to homeowners: \u003cstrong\u003ea heat pump that can operate at -30 °C does not necessarily retain its maximum capacity or its best efficiency at -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor this Senville unit, a maximum capacity of 27,800 BTU at -30 °C remains significant for a central heat pump in this category, but it must be compared with the home's actual heat loss.\u003c\/p\u003e\n\u003cp\u003eIf the property requires, for example, more heat than the heat pump can provide during an extreme cold spell, auxiliary heating will need to take over or operate in conjunction with it.\u003c\/p\u003e\n\u003ch3\u003eAuxiliary heating: an element to plan from the quotation stage\u003c\/h3\u003e\n\u003cp\u003eSenville documentation shows that the system can be configured with \u003cstrong\u003e10 kW, 15 kW, or 20 kW\u003c\/strong\u003e auxiliary heating elements. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis detail is particularly relevant in Quebec.\u003c\/p\u003e\n\u003cp\u003eAuxiliary electric heating should not be selected arbitrarily. Its capacity must match the building’s needs and the available electrical capacity.\u003c\/p\u003e\n\u003cp\u003eIn a home where the central heat pump replaces an old electric furnace, we therefore check all of the following simultaneously:\u003c\/p\u003e\n\u003cp\u003ethe heat pump’s capacity, the existing or planned supplemental heating, the electrical panel, available capacity, and the operating strategy during periods of extreme cold.\u003c\/p\u003e\n\u003cp\u003eSystematically installing the largest available component is not always the best decision. A larger component also requires greater electrical capacity.\u003c\/p\u003e\n\u003ch3\u003eSEER2 17.4, EER2 11.7, and HSPF2-4 10.3\u003c\/h3\u003e\n\u003cp\u003eThe official technical documentation lists a \u003cstrong\u003eSEER2 of 17.4\u003c\/strong\u003e, an \u003cstrong\u003eEER2 of 11.7\u003c\/strong\u003e, an \u003cstrong\u003eHSPF2-4 of 10.3\u003c\/strong\u003e, and a nominal COP of \u003cstrong\u003e3.36\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn some sales materials, we still see only the terms “SEER,” “EER,” or “HSPF.” For this combination, the brochure correctly uses the ratings \u003cstrong\u003eSEER2, EER2, and HSPF2\u003c\/strong\u003e, which correspond to current testing methods.\u003c\/p\u003e\n\u003cp\u003eFor homeowners, these values are mainly useful for comparing central systems in the same category.\u003c\/p\u003e\n\u003cp\u003eAn attractive SEER2 rating helps reduce the amount of electricity required for cooling during the summer season. HSPF2 is more representative of seasonal heating efficiency.\u003c\/p\u003e\n\u003cp\u003eIn the \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e climate, heating obviously plays a major role in the economic analysis of a central heat pump.\u003c\/p\u003e\n\u003ch3\u003e1,188 CFM: why the ductwork must be checked before installation\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit offers three airflow levels:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1,188 CFM at high speed, 1,082 CFM at medium speed, and 970 CFM at low speed\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese data are essential in a central-system project.\u003c\/p\u003e\n\u003cp\u003eA heat pump can deliver excellent performance on paper yet produce disappointing results if the ductwork is too restrictive, poorly balanced, or partially obstructed.\u003c\/p\u003e\n\u003cp\u003eIn our assessments at AirGreen, we pay attention to symptoms that may reveal a distribution problem:\u003c\/p\u003e\n\u003cp\u003ebedrooms receiving almost no air, an overly restrictive return grille, crushed ducts, one floor heating much less than the other, or excessive blowing noise at certain outlets.\u003c\/p\u003e\n\u003cp\u003eReplacing the equipment does not automatically correct these deficiencies.\u003c\/p\u003e\n\u003cp\u003eTo properly handle an airflow of up to \u003cstrong\u003e1,188 CFM\u003c\/strong\u003e, we must ensure that the existing installation allows the indoor unit to circulate air properly.\u003c\/p\u003e\n\u003ch3\u003eA 49-inch-high central indoor unit\u003c\/h3\u003e\n\u003cp\u003eThe indoor unit measures approximately:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e21.02 in wide × 21.02 in deep × 49.02 in high\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand weighs approximately \u003cstrong\u003e129.19 lb\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit measures:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e38.58 in × 16.34 in × 38.39 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith a stated weight of \u003cstrong\u003e227 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThese dimensions must be verified before ordering the equipment.\u003c\/p\u003e\n\u003cp\u003eIn some mechanical rooms in older Montreal homes, the space between the wall, water heater, pipes, and ventilation system may be limited. Replacing an old furnace with a different indoor unit may require sheet-metal transitions, a plenum modification, or an adjustment to the return air.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we prefer to assess these constraints before installation rather than treat them as a surprise on the morning of the work.\u003c\/p\u003e\n\u003ch3\u003eIndoor sound level: 41 to 45 dB(A)\u003c\/h3\u003e\n\u003cp\u003eThe stated sound level of the indoor unit is:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e41 dB(A) at low speed, 43 dB(A) at medium speed, and 45 dB(A) at high speed\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a central system, these figures must be interpreted together with the duct system.\u003c\/p\u003e\n\u003cp\u003eThe noise perceived in the rooms depends as much on the unit’s operation as on the duct diameter, grilles, air speed, and proximity to the mechanical room.\u003c\/p\u003e\n\u003cp\u003eAn undersized duct system can produce more turbulence and noise, even when the equipment itself is operating normally.\u003c\/p\u003e\n\u003ch3\u003e64 dB(A) for the outdoor unit: location matters\u003c\/h3\u003e\n\u003cp\u003eThe outdoor unit is rated at \u003cstrong\u003e64 dB(A)\u003c\/strong\u003e and can move up to \u003cstrong\u003e4,500 CFM\u003c\/strong\u003e of air. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis detail deserves particular attention in neighborhoods where properties are close together.\u003c\/p\u003e\n\u003cp\u003eThe outdoor unit should not be installed solely where the refrigerant line route is easiest. We must also consider bedrooms, windows, neighbors, property lines, and applicable municipal regulations.\u003c\/p\u003e\n\u003cp\u003eThe Senville brochure also contains a verified buyer review reporting an \u003cstrong\u003eannoying whistling sound coming from the outdoor unit\u003c\/strong\u003e, to the point that the neighbors complained about it. The total sample consists of only three reviews, and this comment does not establish that the model has a widespread problem, but it does serve as a reminder that the actual noise produced by an installation deserves to be taken seriously. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn the field, when an unusual noise appears after an installation, we do not automatically consider the sound level “normal.” An inspection may be necessary to distinguish normal aerodynamic noise from hissing, vibration, support resonance, or a problem requiring diagnosis.\u003c\/p\u003e\n\u003ch2\u003eSENVILLE SENDC-36HF installation: the technical details that determine long-term performance\u003c\/h2\u003e\n\u003ch3\u003e208\/230 V power supply, 41 A MCA, and 50 A maximum protection\u003c\/h3\u003e\n\u003cp\u003eSenville documentation indicates a power supply:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e208\/230 V, single-phase, 60 Hz\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith an operating range of 187 to 253 V. The \u003cstrong\u003eMCA is 41 A\u003c\/strong\u003e, and the indicated maximum fuse or circuit breaker is \u003cstrong\u003e50 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis is not a heat pump that can simply be added to an electrical panel without verification.\u003c\/p\u003e\n\u003cp\u003eDuring a \u003cstrong\u003ecentral heat pump installation in Laval, Montreal, or Longueuil\u003c\/strong\u003e, we must check the panel’s available capacity and consider the installation as a whole, especially when electric auxiliary heating is added.\u003c\/p\u003e\n\u003cp\u003eA 10, 15, or 20 kW heating element represents a significant additional electrical load.\u003c\/p\u003e\n\u003ch3\u003eR-454B: 165.79 oz and precharge for 25 feet\u003c\/h3\u003e\n\u003cp\u003eThe brochure indicates an \u003cstrong\u003eR-454B charge of 165.79 oz\u003c\/strong\u003e with a precharge intended for \u003cstrong\u003e25 feet of piping\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates piping of \u003cstrong\u003e3\/8 in – 3\/4 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eDuring a replacement, we must therefore inspect the existing piping very carefully.\u003c\/p\u003e\n\u003cp\u003eThe fact that a house already has two copper lines between the mechanical room and the outdoor unit does not mean they are automatically suitable for the new system.\u003c\/p\u003e\n\u003cp\u003eWe check their diameter, length, condition, accessibility, and compatibility with the requirements of the new equipment.\u003c\/p\u003e\n\u003cp\u003eThis is one of the points that can make a major difference in the cost and quality of a \u003cstrong\u003ecentral heat pump\u003c\/strong\u003e replacement.\u003c\/p\u003e\n\u003ch3\u003eWall-mounted thermostat and optional WiFi\u003c\/h3\u003e\n\u003cp\u003eThe brochure specifies that the control type is a \u003cstrong\u003ewall-mounted control\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe AirGreen specification sheet indicates that \u003cstrong\u003eWiFi is available as an option\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis detail must be clarified when preparing the quote if the owner absolutely wants to control the heat pump with their phone.\u003c\/p\u003e\n\u003cp\u003eIn a central system, the choice of thermostat is also more important than it may seem. An inverter heat pump uses specific control logic, and we must ensure that the thermostat or control provided allows the system to operate as designed.\u003c\/p\u003e\n\u003ch3\u003eAdvertised provincial rebate: $3,816\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates a \u003cstrong\u003e$3,816 provincial rebate\u003c\/strong\u003e for this combination, associated in particular with:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSENDC-36HF-OG + SENDC-36HF-IG\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAHRI 215735328\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR® 3649597\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCold Climate: yes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor a homeowner comparing the price of a central heat pump with that of a basic central air conditioner, this financial assistance can significantly change the project's economics.\u003c\/p\u003e\n\u003cp\u003eHowever, we always recommend confirming the eligibility criteria and available amount at the time of quoting, since a rebate program may be changed.\u003c\/p\u003e\n\u003cp\u003eThe exact AHRI identification is particularly important: two commercially similar 36,000 BTU systems are not necessarily associated with the same certificate or the same amount.\u003c\/p\u003e\n\u003ch3\u003eA warranty that deserves verification before publication\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet provided indicates a warranty of:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10 years compressor – 10 years parts – 0 years labour\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith the possibility of additional warranty coverage.\u003c\/p\u003e\n\u003cp\u003eHowever, the attached manufacturer's brochure states \u003cstrong\u003e10 years on the compressor and 5 years on parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville also mentions this 10-year compressor and 5-year parts coverage in the product description. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference must be confirmed before presenting the final warranty to the customer. There may be a specific warranty program associated with the distributor, registration, or AirGreen sales channel, but the brochure provided is not sufficient to confirm the 10-year parts coverage shown on the product sheet.\u003c\/p\u003e\n\u003cp\u003eFor us, this transparency is important: the warranty that actually applies must be clearly shown on the quote.\u003c\/p\u003e\n\u003ch3\u003eA typical replacement scenario we encounter\u003c\/h3\u003e\n\u003cp\u003eA representative project is a home equipped with an older central system that still provides cooling, but whose compressor is beginning to show signs of wear.\u003c\/p\u003e\n\u003cp\u003eThe homeowner is hesitating between reinstalling a basic central air conditioner and converting the system to a \u003cstrong\u003eCold Climate central heat pump\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWith the SENDC-36HF, several factors must therefore be verified before even discussing installation:\u003c\/p\u003e\n\u003cp\u003eCan the old system properly handle approximately 1,188 CFM? Can the electrical panel accommodate the outdoor unit and auxiliary heating? Are the existing refrigerant lines compatible? Does the mechanical room provide the required 49 inches of clearance? Do the home's heat losses allow the heat pump to cover a significant portion of the heating load even when the temperature drops below -15 °C?\u003c\/p\u003e\n\u003cp\u003eThese are the questions that distinguish a simple equipment replacement from a \u003cstrong\u003eproperly planned HVAC installation\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eThe mistakes we strive to avoid\u003c\/h3\u003e\n\u003ch4\u003eAutomatically replacing an old 3-ton unit with a new 3-ton unit\u003c\/h4\u003e\n\u003cp\u003eThe previous capacity is useful information, but it does not replace verifying the building’s current heating load.\u003c\/p\u003e\n\u003ch4\u003eIgnoring the ductwork system\u003c\/h4\u003e\n\u003cp\u003eA high-performance central unit cannot compensate for a ductwork system that does not distribute air properly.\u003c\/p\u003e\n\u003ch4\u003eLooking only at the minimum temperature of -30 °C\u003c\/h4\u003e\n\u003cp\u003eThe actual capacity at -30 °C is much more relevant. In this configuration, the AirGreen specifications indicate a \u003cstrong\u003emaximum of 27,800 BTU\/h at -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eNeglecting auxiliary heating\u003c\/h4\u003e\n\u003cp\u003eThe choice between 10, 15, or 20 kW must be incorporated into the building’s electrical and thermal analysis.\u003c\/p\u003e\n\u003ch4\u003eReusing the refrigerant lines without validation\u003c\/h4\u003e\n\u003cp\u003eThe \u003cstrong\u003e3\/8 in – 3\/4 in\u003c\/strong\u003e diameter, length, and condition of the copper lines must meet the needs of the new unit.\u003c\/p\u003e\n\u003ch4\u003eInstalling the outdoor unit near a bedroom or neighbour solely to shorten the lines\u003c\/h4\u003e\n\u003cp\u003eWith a stated sound level of \u003cstrong\u003e64 dB(A)\u003c\/strong\u003e, the location deserves serious consideration.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for a 3-ton SENVILLE central heat pump\u003c\/h3\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, we approach a central installation as a complete system: the heat pump, indoor unit, ductwork, electrical system, thermostat, drainage, refrigerant lines, and supplemental heating must all work together.\u003c\/p\u003e\n\u003cp\u003eFor a project involving the \u003cstrong\u003eSENVILLE SENDC-36HF R454B 36,000 BTU\u003c\/strong\u003e, we can verify sizing, airflow through the existing ductwork, the condition of the ducts, the electrical panel, auxiliary heating, the \u003cstrong\u003e3\/8 in – 3\/4 in\u003c\/strong\u003e refrigerant line routing, the outdoor unit location, and eligibility for financial assistance programs.\u003c\/p\u003e\n\u003cp\u003eThis approach is relevant both for replacing a system in a \u003cstrong\u003eLaval\u003c\/strong\u003e bungalow and for a major renovation in \u003cstrong\u003eMontreal\u003c\/strong\u003e, a home in \u003cstrong\u003eLongueuil\u003c\/strong\u003e, a property on the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e, or a project on the \u003cstrong\u003eNorth Shore\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe SENVILLE SENDC-36HF has features that are well suited to Quebec: \u003cstrong\u003einverter technology, 36,000 nominal BTU, heating down to -30 °C, a stated maximum capacity of 27,800 BTU at that temperature, SEER2 of 17.4, Cold Climate certification, and R-454B refrigerant\u003c\/strong\u003e. However, the quality of the result will depend directly on proper sizing and integration with the building.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen for a quote on the 3-ton SENVILLE SENDC-36HF R454B central heat pump, to check compatibility with your ductwork and plan a complete HVAC installation in Montreal, Laval, Longueuil, the South Shore, or the North Shore.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Senville","offers":[{"title":"Default Title","offer_id":56119967514916,"sku":"SENDC-36HF-OG","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/01_THERMOPOMPE_CENTRALE_SENVILLE_R454B_3_TONNES_36000BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789056260","url":"https:\/\/airgreen.ca\/en\/products\/thermopompe-centrale-senville-r454b-3-tonnes-36000-btu","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}