CANAIR 4C28 Heat Pump - R454B | 3-Zone - 27,000 BTU Outdoor
The CanAir 4C28 R454B 27 000 multi-zone heat pump heats and cools 3 rooms with a single outdoor unit. it delivers 30,000 BTU/h at −8 °C, heats down to −30 °C and qualifies for a $3,600 LogisVert grant. Installed by AirGreen in Montréal, Laval, Longueuil, the North Shore and the South Shore.
3 rooms, one outdoor unit, and the most powerful in its class at −8 °C.
Compared with the 26 multi-zone systems of 27,000 BTU we sell. Every number on this page carries its source.
The parts that make a multi-zone system.
Tap a part to learn more.
Outdoor unit
One compressor for the whole house. It supplies up to 4 heads and modulates from 8,400 to 30,000 BTU/h depending on what the rooms call for (NEEP).
Base pan heater
A heater keeps the outdoor unit’s base pan free of ice below 1 °C and during defrost (NEEP).
Refrigerant lines
One pair of lines per head.
Indoor heads
One head per room, each with its own remote and temperature. The combination is chosen in the “Zones” menu.
Control
Each zone is set separately.
Turn rooms on and off. Watch the power being shared.
One outdoor unit supplies every head: when several rooms call at once, they share its capacity. Pick an outdoor temperature.
Tell us your rooms. We tell you if this size is enough.
Pick the number of rooms and their size. The estimate targets a −15 °C day; it is a guide, the real calculation is done room by room at your home.
The whole series at a glance: find the box that fits you.
Each box is a product: the outdoor unit’s size, and the number of heads.
At −15 °C, it still delivers 100 % of its rated capacity.
Tap a temperature: certified capacity, efficiency and the cost of one hour of heating.
It slows down, it speeds up: the certified modulation range
Light bar: from minimum to maximum capacity. Dark mark: the rated value.
At every temperature, cheaper than baseboards.
Cost of one hour at full output, for the same heat delivered. Hydro-Québec Rate D, second tier: 11.142 ¢/kWh.
The official ratings, on the same scales as before.
SEER2, HSPF2 and EER2 come from the AHRI certification. The mark shows the median of the same-size multi-zone systems we sell.
A grant you can calculate, not guess.
The capacity at −8 °C comes from Hydro-Québec’s list of October 1, 2026. $120 per 1,000 BTU/h is the rate for ENERGY STAR cold-climate heat pumps (guide v1.10).
Where it ranks among same-size multi-zone systems.
Compared with the 26 multi-zone systems of 27,000 BTU we sell, using the LogisVert list figures. Weaknesses too, said plainly.
Against three other brands in its class.
Same rated size, other manufacturers. Pick the opponent.
One multi-zone or several wall units? Both sides, honestly.
We compare both options on your floor plan during the estimate.
What to know before installing a multi-zone system.
Dimensions, wiring and lines, drawn. Then our six steps.
The outdoor unit, dimensioned
One circuit for the whole house
Published sound levels, on one scale.
We use the outdoor figure to choose where the unit goes.
What is particular about this machine.
Only facts published by ENERGY STAR, NEEP or the manufacturer.
Every number, and where it comes from.
Each line carries its source; a line with no published value is not shown.
The manufacturer’s documentation, as PDF.
Everything we have written about this system.
Nordic efficiency by CANAIR: the heat pump designed for Quebec
At AirGreen, we believe that a heating, ventilation, and air conditioning (HVAC) system must, above all, be a sustainable, intelligent solution adapted to the reality of our Quebec winters. This is exactly what the CANAIR 4C28 - R454B | 3-Zone - 27,000 BTU Outdoor heat pump represents: a model of performance and reliability, designed to offer consistent comfort, remarkable energy efficiency, and absolute peace of mind, season after season.
The result of decades of expertise in the field of heating and air conditioning, this heat pump is part of the 4C28 series , a preferred choice for Quebec households seeking a perfect balance between technology, design and energy efficiency.
A flexible and intelligent multi-zone solution
The CANAIR 4C28 - R454B 3-Zone is designed to offer exceptional flexibility. Its outdoor unit can power up to three separate indoor units, allowing precise temperature control in different areas of your home.
Do you want a living room at 21°C, a slightly cooler bedroom at 19°C, and a perfectly tempered office at 22°C? Nothing could be simpler: each zone is independent, ensuring personalized comfort and substantial energy savings.
This modularity makes it an ideal solution for:
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Multi-story houses where the distribution of heat or coolness is often uneven;
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Condos and multi-family dwellings requiring separate thermal management per room;
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Offices or small businesses seeking constant comfort without energy waste.
With the “Follow Me” function , the remote control becomes a true mobile sensor: the device automatically adjusts its performance based on the actual temperature in your location. You no longer need to compensate for heat variations from one room to another—the heat pump takes care of it for you.
Impressive performance, even in extreme conditions
The CANAIR 4C28 stands out for its robustness and its ability to provide stable performance down to -30°C . Unlike many conventional heat pumps that lose their efficiency in extreme cold, this one maintains constant power, ensuring your comfort even during periods of intense frost.
Its technical characteristics testify to this:
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Heating capacity: 27,000 BTU
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Cooling capacity: 27,000 BTU
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SEER2 Energy Efficiency: Up to 23.0
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HSPF2: 10.5
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EER2: 12.5
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Guaranteed operation down to -30°C in heating and +50°C in air conditioning
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Exterior noise level: barely 61 dB(A)
This combination of power and stability makes the CANAIR 4C28 an ideal solution for regions subject to marked climatic variations — whether Montreal, Laval, Longueuil or the windier areas of the North Shore and South Shore.
Inverter technology: performance and energy precision
The heart of the CANAIR 4C28 is Inverter technology , a major innovation that adjusts the compressor speed in real time according to the exact needs of your home.
Rather than constantly switching on and off (like older traditional systems), the Inverter modulates power to maintain a stable and comfortable temperature while reducing energy consumption.
Its advantages are multiple:
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Significant energy savings : the heat pump consumes up to 30% less electricity than a conventional system.
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Constant comfort : no more unpleasant temperature fluctuations, the feeling remains stable.
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Increased durability : reduced wear of components, extending the life of the system.
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Exceptional silence : the inverter motor operates smoothly, without sudden noises or vibrations.
It is this cutting-edge technology that allows the CANAIR 4C28 to deliver maximum performance while minimizing its environmental footprint—a rare and sought-after combination.
A system designed for the Quebec climate
Every detail of the CANAIR 4C28 has been designed to withstand Nordic conditions. Its integrated heating cable system around the compressor and at the base of the outdoor unit prevents ice formation, ensuring smooth operation even during winter storms.
Automatic restart after a power outage ensures continuous heating without manual intervention. And with the cold air draft prevention function , you will never experience that unpleasant feeling of cold air when the heater starts.
The unit is also equipped with:
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TU1 copper coil : material highly resistant to corrosion and pressure.
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Integrated multifunction board : intelligent energy management to avoid overconsumption.
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Turbo mode : rapid temperature rise or accelerated cooling depending on the season.
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Silent Mode : Ideal for nighttime or relaxing moments.
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Self-cleaning function : eliminates humidity and prevents the formation of mold in the exchangers.
In short, everything has been designed to offer absolute comfort, without compromising on durability.
R-454B refrigerant: a major ecological breakthrough
One of the elements that distinguishes the CANAIR 4C28 series is the use of R-454B refrigerant gas , a new generation refrigerant that advantageously replaces R-410A.
This gas, classified A2L , offers a global warming potential (GWP) approximately 75% lower than that of its predecessor, while maintaining excellent energy performance.
By choosing the CANAIR 4C28 , you are making an eco-responsible choice, contributing to the reduction of greenhouse gas emissions without compromising on comfort.
Additionally, the automatic refrigerant leak detection function protects your home and your appliance: if a leak is detected, the unit immediately stops operation and displays an error code, ensuring the safety of your environment.
Modern and intuitive connectivity
The CANAIR 4C28 can be equipped with a smart Wi-Fi module , allowing you to control the device remotely via a mobile app. You can adjust the temperature, activate Turbo mode or switch to silent mode before even getting home.
This is a feature particularly appreciated by our customers in Montreal and Laval who want to manage their comfort while they are away or optimize energy consumption when they are traveling.
Imagine: You leave work, launch your AirGreen app, and your home is already at the perfect temperature when you arrive.
Professional installation by AirGreen: precision, expertise and guarantee
A heat pump of this quality deserves impeccable installation , and that's where the AirGreen team comes in. Our RBQ-certified refrigeration technicians (5645-9605-01) have in-depth expertise in CANAIR systems and carry out each installation meticulously, from planning to commissioning.
Our approach:
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Free on-site assessment , without obligation;
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Complete thermal analysis of your space to determine the best configuration;
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Careful and calibrated installation , respecting the lengths of conduits, vacuum draw and precise pressures;
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Complete system testing before delivery , ensuring optimal performance from day one.
We operate every week in areas such as Rosemont, Ahuntsic, Boucherville, Laval-des-Rapides and Longueuil , where the reliability of the CANAIR 4C28 has proven itself winter after winter.
An exemplary guarantee, synonymous with peace of mind
Choosing the CANAIR 4C28 means investing in peace of mind. This heat pump comes with a warranty of up to 10 years on the compressor and parts , and an optional 10-10-10 extended warranty that includes labor.
This exceptional coverage reflects the manufacturer's confidence in the durability of its product, but also AirGreen's commitment to providing after-sales service that meets the highest expectations.
What's more, we don't require a deposit before the work begins : you only pay when you're completely satisfied with the result. A guarantee of trust and transparency that's an integral part of the AirGreen philosophy.
An ecological, economical and sustainable heat pump
The CANAIR 4C28 is part of a strong environmental approach. By using electricity instead of natural gas, it helps reduce greenhouse gas emissions while improving the energy efficiency of your home.
Compared to traditional heating systems, it reduces energy consumption by up to 40% while maintaining superior thermal comfort.
In addition, thanks to its compatibility with provincial LogisVert subsidies , you can benefit from financial assistance of up to $3,000 , making your investment even more advantageous.
AirGreen: Your Trusted HVAC Partner
For years, AirGreen Climatisation & Chauffage has been supporting families and businesses in Greater Montreal with their HVAC system installation, maintenance and replacement projects.
We are proud to offer products like the CANAIR 4C28 , which represent technological excellence and long-term reliability.
Our mission is simple: to deliver the lasting comfort you deserve , while reducing your energy footprint and operating costs.
Conclusion: the 4C28, the perfect balance between power, intelligence and comfort
In summary, the CANAIR 4C28 - R454B | 3-Zones - 27,000 BTU Outdoor heat pump is much more than a heating and cooling system: it is a complete, intelligent and ecological solution .
It combines performance, reliability, quiet design and respect for the environment, all supported by a professional AirGreen service recognized throughout Montreal, Laval and the South Shore.
Give your home the comfort it deserves, with a heat pump built to last and designed for our climate.
Call AirGreen today at 514-316-2973 or email us at sales@airgreen.ca to get your free in-home estimate .
Take advantage of our experts' expertise and discover why so many Quebecers trust us for their HVAC projects.
What people ask us about multi-zone systems.
Can I heat one room and cool another at the same time?
No. On a multi-zone system like this one, every head works in the same mode, heating or cooling. Each room still keeps its own set temperature.
What happens when every room calls for heat?
They share the outdoor unit’s capacity: 30,000 BTU/h at −8 °C, 27,000 at −15 °C and 14,000 at −30 °C.
How many heads can I connect?
Up to 4 on this outdoor unit. This product is configured for 3 heads.
Can I mix head sizes?
Yes. The “Zones” menu offers 17 combinations, from 6+6+6 to 12+12+12 (in thousands of BTU). Each head is sized for its room.
How much is the LogisVert grant?
$3,600 according to Hydro-Québec’s list of October 1, 2026. The grant never exceeds 100 % of the cost before taxes; apply within 9 months of installation.
Is it ENERGY STAR certified?
Yes, cold climate, ID 3712087. It also meets the ENERGY STAR Most Efficient criteria, according to the ENERGY STAR database.
Down to what temperature does it heat?
Down to −30 °C. At −30 °C, it still delivers 14,000 BTU/h with a COP of 1.26.
Is it noisy?
Indoors, the reference head goes down to 19.5 dB(A). Outdoors, 61 dB(A): we place the unit away from bedroom windows.
Why a multi-zone instead of several wall units?
One outdoor unit on the wall and one circuit. In return, the rooms share the capacity, and if the outdoor unit stops, every zone stops.
What does the warranty cover?
Our sheet lists 10 years on the compressor and 10 years on parts; labour is not included by the manufacturer. AirGreen extended warranty: possible.
A multi-zone system is planned room by room. At your home.
We measure every room, draw the line route and choose the right head for each zone. The on-site estimate is free and the quote arrives within 24 h.