{"product_id":"thermopompe-2-zones-senville-r454b-48000-btu","title":"SENVILLE R454B 2-Zone Heat Pump | 48000 BTU","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eTwo 24,000 BTU zones, one outdoor unit: a configuration designed for large spaces that require true independent control\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eA \u003cstrong\u003e48,000 BTU 2-zone heat pump\u003c\/strong\u003e meets a very different need from a single-zone wall-mounted heat pump. Here, a single outdoor unit powers two separate indoor units, making it possible to condition two major zones of a building while retaining a single outdoor refrigeration system.\u003c\/p\u003e\n\u003cp\u003eThe SENVILLE configuration associated with this listing uses the \u003cstrong\u003eSENA-48HF-MOA\u003c\/strong\u003e outdoor unit and, in the 2-zone version documented by Senville, two indoor units of \u003cstrong\u003e24,000 BTU each\u003c\/strong\u003e. The brochure specifically identifies the product as the \u003cstrong\u003eSENA-48HF\/D\u003c\/strong\u003e, with the commercial combination \u003cstrong\u003eSENA-48HF-D2424\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor us at \u003cstrong\u003eAirGreen Heat Pumps, Air Conditioning \u0026amp; Heating\u003c\/strong\u003e, this type of system becomes particularly relevant when a homeowner in \u003cstrong\u003eMontreal, Laval, Longueuil, on the South Shore or the North Shore\u003c\/strong\u003e wants to cool and heat two large zones without installing two separate outdoor units.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen combination is associated with the following specifications:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor unit: SENA-48HF-MOA\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCommercial capacity: 48,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eConfiguration shown: 2 zones\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTwo 24,000 BTU indoor units\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAHRI: 215735320\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: 3630067\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRefrigerant: R-454B\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSEER2: 23\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 12\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-4: 11\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWiFi: included\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMinimum heating temperature: -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePower supply: 208\/230 V\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMCA: 37 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMOP: 40 A\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eOutdoor sound level: 65 dB(A)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSenville documentation confirms the \u003cstrong\u003eSEER2 of 23\u003c\/strong\u003e, the use of R-454B, 208\/230 V power supply, and a multi-zone design capable of managing \u003cstrong\u003e2 to 6 zones\u003c\/strong\u003e depending on the configuration. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eOne essential clarification: the outdoor unit can support several configurations, but this article focuses on two zones.\u003c\/h3\u003e\n\u003cp\u003eThe brochure states that the \u003cstrong\u003eSENA-48HF-MOA\u003c\/strong\u003e can support \u003cstrong\u003e2 to 6 zones\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis does not mean that the configuration presented here includes six indoor units. The version documented on the first page does include \u003cstrong\u003etwo 24,000 BTU units each\u003c\/strong\u003e, for a 24,000 + 24,000 BTU combination. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a homeowner, this distinction is important.\u003c\/p\u003e\n\u003cp\u003eA multi-zone outdoor unit is a platform capable of supporting different combinations. However, the final performance depends on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eof the number of installed heads;\u003c\/li\u003e\n\u003cli\u003eof their individual capacity;\u003c\/li\u003e\n\u003cli\u003eof the line-set length;\u003c\/li\u003e\n\u003cli\u003eof the zones’ simultaneous needs;\u003c\/li\u003e\n\u003cli\u003eof the certified combination.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is therefore essential to always compare the \u003cstrong\u003ecomplete combination\u003c\/strong\u003e, not just the outdoor unit number.\u003c\/p\u003e\n\u003ch3\u003eTwo 24,000 BTU heads: for what type of building is this configuration suitable?\u003c\/h3\u003e\n\u003cp\u003eTwo \u003cstrong\u003e24,000 BTU\u003c\/strong\u003e wall-mounted units represent substantial capacity.\u003c\/p\u003e\n\u003cp\u003eThis combination may be interesting, for example, for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003etwo relatively open large floors;\u003c\/li\u003e\n\u003cli\u003ea large ground floor and basement;\u003c\/li\u003e\n\u003cli\u003etwo large commercial zones;\u003c\/li\u003e\n\u003cli\u003etwo independent residences or sections when the technical configuration allows it;\u003c\/li\u003e\n\u003cli\u003ea large residential space divided into two thermal zones.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSenville generally recommends this 48,000 BTU version for approximately \u003cstrong\u003e2,000 to 2,500 sq. ft.\u003c\/strong\u003e, while presenting it as a solution for multiple zones or large spaces. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe consider this area only a general indication.\u003c\/p\u003e\n\u003cp\u003eA 2,200 sq. ft. property in \u003cstrong\u003eBoucherville\u003c\/strong\u003e with recent insulation and an open layout may have a completely different load from an older duplex in \u003cstrong\u003eMontreal\u003c\/strong\u003e of a similar size.\u003c\/p\u003e\n\u003cp\u003eFor a \u003cstrong\u003emulti-zone HVAC installation\u003c\/strong\u003e, we must consider, among other factors:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003einsulation;\u003c\/li\u003e\n\u003cli\u003ewindows;\u003c\/li\u003e\n\u003cli\u003esolar exposure;\u003c\/li\u003e\n\u003cli\u003eceilings;\u003c\/li\u003e\n\u003cli\u003eexterior walls;\u003c\/li\u003e\n\u003cli\u003enatural air circulation;\u003c\/li\u003e\n\u003cli\u003ethe actual separation between the zones;\u003c\/li\u003e\n\u003cli\u003ewinter heating needs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eA common mistake is to simply add 24,000 + 24,000 and assume that each head will always have 24,000 BTU\u003c\/h3\u003e\n\u003cp\u003eA multi-zone system operates differently from two independent heat pumps.\u003c\/p\u003e\n\u003cp\u003eThe two indoor units share the same outdoor unit and compressor. When both zones require substantial capacity simultaneously, the outdoor unit must distribute its output.\u003c\/p\u003e\n\u003cp\u003eThe brochure lists a nominal cooling capacity of \u003cstrong\u003e47,000 BTU\/h\u003c\/strong\u003e for the system, with an operating range of \u003cstrong\u003e12,000 to 57,000 BTU\/h\u003c\/strong\u003e. In heating mode, the nominal capacity is \u003cstrong\u003e49,000 BTU\/h\u003c\/strong\u003e, with modulation from \u003cstrong\u003e13,000 to 57,000 BTU\/h\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThat is precisely why we do not present a multi-zone system as two completely independent single units from a refrigeration standpoint.\u003c\/p\u003e\n\u003cp\u003eThe temperatures can be adjusted separately in the two spaces, but the units share the available outdoor capacity.\u003c\/p\u003e\n\u003ch3\u003eSEER2 23: outstanding efficiency for a system of this capacity\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eSEER2 of 23\u003c\/strong\u003e is particularly noteworthy for a 48,000 BTU multi-zone system.\u003c\/p\u003e\n\u003cp\u003eThe brochure also confirms:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eEER2: 12\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-4: 11\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eHSPF2-5: 9\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal COP: 3.7\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a property that frequently uses both zones during the summer, seasonal efficiency becomes important because a high-capacity system can accumulate many operating hours.\u003c\/p\u003e\n\u003cp\u003eThe inverter also allows modulation. It is therefore not a unit doomed to constantly produce 48,000 BTU.\u003c\/p\u003e\n\u003cp\u003eThe cooling range, which can go down to \u003cstrong\u003e12,000 BTU\/h\u003c\/strong\u003e, allows the system to adjust its output when only one zone requires little energy or when overall needs decrease.\u003c\/p\u003e\n\u003ch3\u003eWhy modulation is even more important in a 2-zone heat pump\u003c\/h3\u003e\n\u003cp\u003eLet’s consider a simple configuration.\u003c\/p\u003e\n\u003cp\u003eThe first head serves a large living room-kitchen where several people are present. The second serves a floor that has become almost unused for a few hours.\u003c\/p\u003e\n\u003cp\u003eThe needs are not identical.\u003c\/p\u003e\n\u003cp\u003eThe inverter compressor adjusts its output to meet the overall load rather than operating solely in on-off mode.\u003c\/p\u003e\n\u003cp\u003eIn a properly sized installation, this can improve:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003etemperature stability;\u003c\/li\u003e\n\u003cli\u003epartial-load consumption;\u003c\/li\u003e\n\u003cli\u003ethe comfort of both zones;\u003c\/li\u003e\n\u003cli\u003ethe acoustic performance of the indoor units;\u003c\/li\u003e\n\u003cli\u003ethe efficiency during periods when a single zone demands a lot of energy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHeating down to -30 °C: low-temperature capacities must be considered separately\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications provide three particularly useful operating points:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e45,000 BTU\/h at -8 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e47,000 BTU\/h at -15 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaximum 24,600 BTU\/h at -30 °C\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe stated COP is approximately \u003cstrong\u003e2.6 at -8 °C\u003c\/strong\u003e and \u003cstrong\u003e1.27 at the maximum operating point at -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eSenville’s documentation confirms a minimum heating temperature of \u003cstrong\u003e-22 °F, or -30 °C\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe technical conclusion is important: \u003cstrong\u003eoperating down to -30 °C does not mean maintaining 48,000 BTU of heating capacity down to -30 °C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eAt this extreme temperature, the AirGreen specifications indicate a maximum capacity of approximately \u003cstrong\u003e24,600 BTU\/h\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a large home in \u003cstrong\u003eGreater Montreal\u003c\/strong\u003e, this difference must be incorporated into the heating calculation.\u003c\/p\u003e\n\u003ch3\u003eAt -15 °C, the capacity remains very high\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e47,000 BTU at -15 °C\u003c\/strong\u003e listed on the AirGreen specifications sheet is particularly interesting.\u003c\/p\u003e\n\u003cp\u003eAt this temperature, the available capacity remains close to the system’s overall rated capacity.\u003c\/p\u003e\n\u003cp\u003eThis is precisely the type of data we examine at AirGreen when a customer wants to use their heat pump as the primary heating source for a large portion of the winter.\u003c\/p\u003e\n\u003cp\u003eThe relevant question is not merely: “Down to what temperature does it operate?”\u003c\/p\u003e\n\u003cp\u003eWe look instead at:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many BTUs does the system produce at the temperature when the house actually needs them?\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eCold Climate and ENERGY STAR®\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCold Climate: yes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eENERGY STAR®: yes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eand the brochure also presents the series as ENERGY STAR certified and designed to provide heating down to -30 °C. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a Quebec homeowner, this certification may be relevant both to the technical choice and to certain financial assistance programs.\u003c\/p\u003e\n\u003cp\u003eThe AirGreen listing associates this combination with reference \u003cstrong\u003eAHRI 215735320\u003c\/strong\u003e and identifier \u003cstrong\u003eENERGY STAR 3630067\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eAdvertised provincial rebate: $5,400\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen listing currently indicates a \u003cstrong\u003e$5,400 provincial rebate\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor a multi-zone project, an amount of this magnitude can obviously significantly change the installation’s net cost.\u003c\/p\u003e\n\u003cp\u003eEligibility must nevertheless be confirmed when the quote is prepared, as programs, amounts, and criteria may be revised.\u003c\/p\u003e\n\u003cp\u003eWe specifically verify:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe exact models;\u003c\/li\u003e\n\u003cli\u003eAHRI;\u003c\/li\u003e\n\u003cli\u003eCold Climate certification;\u003c\/li\u003e\n\u003cli\u003ethe type of building;\u003c\/li\u003e\n\u003cli\u003ethe rules in effect at the time of the project.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA system commercially called “Senville 48,000 BTU” is not sufficient to validate a rebate. \u003cstrong\u003eThe specific certified combination is decisive.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eTwo-zone installation: what we check before recommending the SENVILLE SENA-48HF-MOA\u003c\/h2\u003e\n\u003ch3\u003eA substantial outdoor unit weighing nearly 250 lb\u003c\/h3\u003e\n\u003cp\u003eThe brochure lists the following dimensions for the outdoor unit:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e37.48 in × 16.34 in × 52.48 in\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eweighing approximately \u003cstrong\u003e246.47 lb\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWe are therefore not talking about a small conventional wall-mounted unit.\u003c\/p\u003e\n\u003cp\u003eIts installation requires:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea suitable support;\u003c\/li\u003e\n\u003cli\u003ean accessible location;\u003c\/li\u003e\n\u003cli\u003eadequate clearances;\u003c\/li\u003e\n\u003cli\u003especial attention to snow accumulation;\u003c\/li\u003e\n\u003cli\u003ea well-planned refrigerant line route.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAt several \u003cstrong\u003eMontreal\u003c\/strong\u003e properties, outdoor space may be limited. On the \u003cstrong\u003eSouth Shore\u003c\/strong\u003e or \u003cstrong\u003eNorth Shore\u003c\/strong\u003e, we may sometimes have more flexibility, but the unit must always remain accessible for servicing.\u003c\/p\u003e\n\u003ch3\u003e4,503 CFM outdoors: do not enclose the condenser\u003c\/h3\u003e\n\u003cp\u003eThe documentation indicates a maximum outdoor airflow of \u003cstrong\u003e4,502.8 CFM\u003c\/strong\u003e and a sound level of \u003cstrong\u003e65 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eA unit capable of moving more than 4,500 cubic feet of air per minute should not be enclosed behind overly tight decorative panels or placed in a corner where discharged air immediately returns toward the coil.\u003c\/p\u003e\n\u003cp\u003ePoor airflow around the outdoor unit can affect its heat exchange and operation.\u003c\/p\u003e\n\u003ch3\u003eAn outdoor sound level of 65 dB(A) warrants careful consideration of the location\u003c\/h3\u003e\n\u003cp\u003eThe stated value is \u003cstrong\u003e65 dB(A)\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor a large multi-zone unit, the following must therefore be taken into account:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003efrom the primary bedroom;\u003c\/li\u003e\n\u003cli\u003efrom the windows;\u003c\/li\u003e\n\u003cli\u003efrom the terrace;\u003c\/li\u003e\n\u003cli\u003eneighbors;\u003c\/li\u003e\n\u003cli\u003ewalls that may reflect sound;\u003c\/li\u003e\n\u003cli\u003emunicipal regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA very short piping run is not necessarily the best installation if it positions the condenser directly beneath a bedroom window.\u003c\/p\u003e\n\u003ch3\u003eR-454B: 151.68 oz charge and impressive 150-foot precharge\u003c\/h3\u003e\n\u003cp\u003eSenville documentation indicates a charge of \u003cstrong\u003e151.68 oz of R-454B\u003c\/strong\u003e as well as a \u003cstrong\u003especified precharge for up to 150 feet\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSenville also specifies that the system is precharged for a total of up to \u003cstrong\u003e150 feet of piping\u003c\/strong\u003e and that professional installation is required. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis capacity is particularly interesting in a multi-zone project because the two indoor units may be far from the outdoor unit.\u003c\/p\u003e\n\u003cp\u003eHowever, this does not mean that we should unnecessarily use all of that length.\u003c\/p\u003e\n\u003cp\u003eThe more complex the route, the more we need to consider:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epressure losses;\u003c\/li\u003e\n\u003cli\u003ethe total amount of copper;\u003c\/li\u003e\n\u003cli\u003eheight differences;\u003c\/li\u003e\n\u003cli\u003epassages through the walls;\u003c\/li\u003e\n\u003cli\u003efuture access;\u003c\/li\u003e\n\u003cli\u003ethe aesthetics of the line-hide covers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e3\/8 in – 5\/8 in piping: pay attention to the exact branch configuration\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate a main pipe size of \u003cstrong\u003e3\/8 in – 5\/8 in\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eHowever, on a multi-zone system, we must always consult the exact combination diagram to determine the applicable diameters for each indoor unit and any distribution fittings.\u003c\/p\u003e\n\u003cp\u003eWe avoid treating the diameter shown on the outdoor unit’s specifications as complete installation instructions for both branches.\u003c\/p\u003e\n\u003ch3\u003eInstalling two indoor units: drainage can become more complex than the refrigerant piping\u003c\/h3\u003e\n\u003cp\u003eA 2-zone heat pump also means \u003cstrong\u003etwo indoor units producing condensate\u003c\/strong\u003e in cooling mode.\u003c\/p\u003e\n\u003cp\u003eEach one requires adequate drainage.\u003c\/p\u003e\n\u003cp\u003eIn one project, we may sometimes route both drains by gravity. In other configurations, one indoor unit is located where the natural slope is insufficient, and an additional solution must be planned.\u003c\/p\u003e\n\u003cp\u003eAt AirGreen, we therefore evaluate for each zone:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe available wall;\u003c\/li\u003e\n\u003cli\u003ethe refrigerant line route;\u003c\/li\u003e\n\u003cli\u003ethe drain;\u003c\/li\u003e\n\u003cli\u003eelectrical access;\u003c\/li\u003e\n\u003cli\u003ethe direction of airflow;\u003c\/li\u003e\n\u003cli\u003efuture maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAutomatic vertical and horizontal louvers\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen specifications indicate \u003cstrong\u003eautomatic vertical and horizontal louvers\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eOn a 24,000 BTU indoor unit, this feature is useful for distributing air throughout a large area.\u003c\/p\u003e\n\u003cp\u003eBut it cannot correct poor placement.\u003c\/p\u003e\n\u003cp\u003eIdeally, we aim to orient each unit toward the depth of its space, without blowing directly onto a table, sofa, or bed.\u003c\/p\u003e\n\u003cp\u003eIn a multi-zone system, each indoor unit must be considered a complete installation in its own right.\u003c\/p\u003e\n\u003ch3\u003eWiFi included: particularly relevant for two zones\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWiFi is included\u003c\/strong\u003e according to the AirGreen product sheet, and the brochure confirms smart app-based control. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIn a 2-zone installation, this feature becomes genuinely practical.\u003c\/p\u003e\n\u003cp\u003eFor example, an owner can keep a main zone at a comfortable temperature while lowering the setpoint in a space used less often.\u003c\/p\u003e\n\u003cp\u003eThe brochure indicates that the package includes, among other things:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e2 indoor units of 24,000 BTU\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eone outdoor unit;\u003c\/li\u003e\n\u003cli\u003ethe wireless remote controls;\u003c\/li\u003e\n\u003cli\u003ea USB WiFi kit;\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003etwo 16-foot installation kits\u003c\/strong\u003e;\u003c\/li\u003e\n\u003cli\u003ethe connection harnesses;\u003c\/li\u003e\n\u003cli\u003ethe installation manual. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical requirements: MCA 37 A and MOP 40 A\u003c\/h3\u003e\n\u003cp\u003eThe documentation specifies:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMCA: 37 A\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003emaximum protection: 40 A\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe power supply is \u003cstrong\u003e208\/230 V single-phase, 60 Hz\u003c\/strong\u003e, with a voltage range of 187 to 253 V. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBefore installation, we must therefore confirm:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethe electrical panel;\u003c\/li\u003e\n\u003cli\u003ethe available capacity;\u003c\/li\u003e\n\u003cli\u003ethe circuit breaker;\u003c\/li\u003e\n\u003cli\u003ethe conductor size;\u003c\/li\u003e\n\u003cli\u003ethe outdoor disconnect switch.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a 48,000 BTU heat pump, this verification must be completed before finalizing the project, not on the day of installation.\u003c\/p\u003e\n\u003ch3\u003eA practical example: two large floors with different usage patterns\u003c\/h3\u003e\n\u003cp\u003eLet’s take an example configuration, solely to illustrate how the system works.\u003c\/p\u003e\n\u003cp\u003eA property has a large open-plan ground floor and a finished basement of a similar size.\u003c\/p\u003e\n\u003cp\u003eThe ground floor is occupied all day, while the basement is mainly used in the evening.\u003c\/p\u003e\n\u003cp\u003eWith a single heat pump and one indoor head, distributing air evenly between the two levels would be difficult.\u003c\/p\u003e\n\u003cp\u003eWith two independent indoor units:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eeach floor receives its own air distribution;\u003c\/li\u003e\n\u003cli\u003ethe settings can be adjusted separately;\u003c\/li\u003e\n\u003cli\u003ethe unused zone can operate at a lower intensity;\u003c\/li\u003e\n\u003cli\u003ethe outdoor unit remains single.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis is precisely the type of situation in which the \u003cstrong\u003e2-zone\u003c\/strong\u003e approach becomes attractive.\u003c\/p\u003e\n\u003ch3\u003eAnother scenario in which two outdoor units might be preferable\u003c\/h3\u003e\n\u003cp\u003eA multi-zone system is not automatically the best solution.\u003c\/p\u003e\n\u003cp\u003eIf the two spaces are very far apart or the owner wants complete redundancy, two independent heat pumps may sometimes be preferable.\u003c\/p\u003e\n\u003cp\u003eWith two separate units, a failure of one outdoor unit does not disable both zones.\u003c\/p\u003e\n\u003cp\u003eA multi-zone system instead offers:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea single outdoor unit;\u003c\/li\u003e\n\u003cli\u003ea simpler outdoor appearance;\u003c\/li\u003e\n\u003cli\u003ea centralized system power supply;\u003c\/li\u003e\n\u003cli\u003emultiple indoor zones.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe choice therefore depends on the building and the owner’s priorities.\u003c\/p\u003e\n\u003ch3\u003eWarranty: a discrepancy that needs to be clarified\u003c\/h3\u003e\n\u003cp\u003eThe AirGreen product sheet indicates a manufacturer’s warranty:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e10-year compressor – 10-year parts – 0-year labor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ewith an additional warranty available.\u003c\/p\u003e\n\u003cp\u003eHowever, the attached Senville brochure mentions \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\u003eThe technical table also repeats \u003cstrong\u003e10 Years Compressor \/ 5 Years Parts\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis difference should be verified before final publication or before the sale. There may be an extension associated with registration or AirGreen’s commercial terms, but the brochure alone does not confirm 10-year parts coverage.\u003c\/p\u003e\n\u003cp\u003eFor us, the exact terms must be specified in the quote.\u003c\/p\u003e\n\u003ch3\u003eSelf-diagnostics and leak detection\u003c\/h3\u003e\n\u003cp\u003eThe documentation mentions \u003cstrong\u003ebuilt-in diagnostics and leak detection\u003c\/strong\u003e functions designed to facilitate the identification of certain problems. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOn a multi-zone system, this feature is useful, but it obviously does not replace \u003cstrong\u003eHVAC maintenance\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eTwo indoor units also mean:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003etwo filter assemblies;\u003c\/li\u003e\n\u003cli\u003etwo evaporators;\u003c\/li\u003e\n\u003cli\u003etwo drains;\u003c\/li\u003e\n\u003cli\u003etwo zones to inspect.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe owner must therefore plan maintenance suited to the complete configuration.\u003c\/p\u003e\n\u003ch3\u003eWhy choose AirGreen for a 48,000 BTU SENVILLE 2-zone heat pump\u003c\/h3\u003e\n\u003cp\u003eA multi-zone installation of this capacity must be planned as a complete system, not as “two heads connected to one machine.”\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003eAirGreen\u003c\/strong\u003e, we specifically check:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ethe heat load of each zone;\u003c\/li\u003e\n\u003cli\u003ethe proper capacity of each indoor unit;\u003c\/li\u003e\n\u003cli\u003ethe compatibility of the combination with the outdoor unit;\u003c\/li\u003e\n\u003cli\u003ethe routing of each refrigerant line;\u003c\/li\u003e\n\u003cli\u003etotal lengths;\u003c\/li\u003e\n\u003cli\u003eheight differences;\u003c\/li\u003e\n\u003cli\u003edrainage for each unit;\u003c\/li\u003e\n\u003cli\u003ethe 208\/230 V power supply;\u003c\/li\u003e\n\u003cli\u003ethe outdoor location;\u003c\/li\u003e\n\u003cli\u003eclearances and noise;\u003c\/li\u003e\n\u003cli\u003eeligibility for available programs;\u003c\/li\u003e\n\u003cli\u003efuture access for maintenance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWe serve \u003cstrong\u003eMontreal, Laval, Longueuil, the South Shore, the North Shore, and Montérégie\u003c\/strong\u003e for single-zone and multi-zone heat pump projects.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSENVILLE SENA-48HF-MOA R454B\u003c\/strong\u003e offers a particularly interesting technical package: \u003cstrong\u003e23 SEER2, Cold Climate operation down to -30 °C, modulation from 12,000 to 57,000 BTU in cooling, up to 57,000 BTU in heating, WiFi, ENERGY STAR, and the ability to manage multiple zones with a single outdoor unit\u003c\/strong\u003e. \u003cspan class=\"contents\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor the configuration presented here, the main advantage is clear: \u003cstrong\u003etwo large 24,000 BTU zones each, with a single 48,000 BTU outdoor unit\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContact AirGreen to get a quote for the SENVILLE R454B 48,000 BTU 2-zone heat pump, check whether the 24,000 + 24,000 BTU combination is suitable for your building, and schedule 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":"24 + 24","offer_id":56200896217380,"sku":"SENA-48HF-MOA","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0715\/1694\/6724\/files\/00_THERMOPOMPE_2_ZONES_SENVILLE_R454B_48000_BTU_MONTREAL_LAVAL_LONGUEUIL_RIVE_SUD_RIVE_NORD.png?v=1789057736","url":"https:\/\/airgreen.ca\/en\/products\/thermopompe-2-zones-senville-r454b-48000-btu","provider":"AirGreen Climatisation \u0026 Chauffage \/ Air Conditioning \u0026 Heating","version":"1.0","type":"link"}