CANAIR 4C28 Heat Pump - R454B | 5-Zone - 48,000 BTU Outdoor

In stock
SKU: 4C28MC648H21
Provincial Grant (LogisVert): 5280 $ (Updated: July 17, 2025)
Model Number (External): 4C28MC648H21
AHRI: 215449733
ENERGY STAR®: Yes
ENERGY STAR® (Cold Climate): Yes / Yes
Heating Capacity: -30 °C
Cooling Capacity: 48,000 BTU
Gas (Freon): R-454B
SEER2: 23.0
HSPF2: 11.0
EER2: 12.0
External Dimensions (L x W x H): 37.48 x 16.34 x 52.48 in
Zones: 5 Areas
Maximum Zones: 6 Areas
Possible Model Number (Interior): 4C28SEH06H21, 4C28SEH09H21, 4C28SEH12H21, 4C28SEH18H21, 4C28SEH24H21, and 4C28SEH33H21
  • WiFi: Optional
  • Warranty (Compressor - Parts - Labor): 10-10-0 years
  • Additional Warranty (10-10-10): Possible
  • Voltage: 220 V
  • Sound Pressure Level (Outdoor): 65.0 dB(A)

The alliance between power, reliability and Quebec know-how

At AirGreen , we pride ourselves on offering our customers heating, ventilation, and air conditioning (HVAC) solutions tailored to Quebec's harsh climate. When we recommend a product, we always do so with the confidence that it will withstand the icy winters of Montreal and the sweltering summers of Laval , while providing consistent comfort and real energy savings.

The CANAIR 4C28 Heat Pump – R454B | 5-Zones – 48,000 BTU Outdoor perfectly embodies this philosophy. It is not simply a high-performance device: it is a complete solution , designed, engineered and distributed for the needs of modern Quebec families. Offering cutting-edge energy efficiency , intelligent multi-zone technology and an unmatched warranty , this heat pump is the ideal choice for those looking for efficiency, reliability and peace of mind.


A heat pump designed to withstand Quebec winters

Our winters are unforgiving. At -25°C or -30°C , many traditional HVAC systems show their limits. The CANAIR 4C28 series, on the other hand, was specifically developed for these conditions. Thanks to its latest-generation inverter technology , it continuously adjusts the compressor speed to provide the exact amount of energy needed—no more, no less.

This dynamic modulation not only maintains a constant temperature , but also reduces electricity consumption by up to 30% compared to a conventional system. The result: constant thermal comfort and lower electricity bills, even during periods of extreme cold.

Key performance specifications

  • Heating capacity: 49,000 BTU/h

  • Cooling capacity: 47,000 BTU/h

  • Refrigerant Type: R-454B (low GWP, environmentally friendly and safe)

  • SEER2 coefficient: 23.0

  • HSPF2 coefficient: 11.0

  • Exterior noise level: 65 dB(A)

  • Supported zones: up to 6 indoor units

  • Operating temperature range: -30°C to +50°C

This robustness makes the CANAIR 4C28 one of the few systems capable of ensuring stable performance under extreme temperatures , without any significant drop in power, while guaranteeing quiet and smooth operation.


The power of multi-zone: tailor-made comfort

The CANAIR 4C28 's 5-Zone system offers the ability to adapt comfort to each space in the home. Whether it's for a large residence in Longueuil , a duplex in Ahuntsic , or an urban condo in Rosemont , this flexibility allows you to individually control each zone according to your actual needs.

Imagine: the living room maintained at 22°C during the day, the master bedroom at 19°C for a peaceful sleep, and the office gently cooled for optimal comfort while working from home. With its independent room control, the CANAIR 4C28 transforms the way we experience thermal comfort.

Intelligent and precise control

  • Optional Wi-Fi control : Manage the temperature of each room remotely via an intuitive mobile app.

  • “Follow Me” function : the remote control senses the ambient temperature and automatically adjusts the airflow for perfect precision.

  • Turbo mode : ideal for quickly reaching the desired temperature before a meal or an evening with the family.

  • Complete self-cleaning : Indoor and outdoor coils automatically dry to prevent mold and mildew.

  • Built-in heating cables : prevent ice buildup on the base of the outdoor unit, extending compressor life.

  • Automatic restart : After a power failure, the system resumes its previous settings without manual intervention.

This combination of smart technology and practical design makes the CANAIR 4C28 a benchmark in the high-end multi-zone heat pump category.


Energy efficiency at the heart of the design

Every component of the CANAIR 4C28 is designed to maximize energy efficiency and reduce operating costs. The inverter compressor continuously adjusts its frequency, allowing for low-rpm operation when demand is low. Unlike traditional systems with stop-start cycles, the Canair maintains a perfect balance, without wasting energy.

This fine management of consumption results in:

  • Energy savings measurable from the first months of use;

  • Reduced mechanical stress on internal components, extending the life of the device;

  • Constant temperature stability , avoiding unpleasant variations.

Additionally, R-454B refrigerant represents a major breakthrough: it offers superior thermal performance while meeting the strictest environmental standards. Its global warming potential (GWP) is approximately 75% lower than that of R-410A, making it a responsible and sustainable choice.


The CANAIR guarantee: a guarantee of trust and peace of mind

When you invest in an HVAC system, you're looking for reliability. With the CANAIR 4C28 , that peace of mind is guaranteed. The manufacturer offers a standard 5-year parts and compressor warranty , extendable to 10 years on parts and compressor , and 10 years on labor .

This exceptional coverage demonstrates the distributor's confidence in the quality of its product. It also ensures AirGreen customers receive comprehensive, fast, and worry-free service—backed by our own team of certified refrigeration technicians.


An installation by AirGreen: precision, cleanliness and professionalism

Every installation project is handled with the rigor that AirGreen is known for throughout the Greater Montreal Area . When a customer chooses a CANAIR 4C28 , we always start with a free on-site evaluation . This crucial step allows us to understand the building's real needs: surface area, orientation, insulation, air circulation and occupancy habits.

Our experts then offer a tailor-made configuration:

  • Optimal choice of number of zones and interior capacities (6,000 to 33,000 BTU per unit).

  • Planning the passage of conduits and cables for an impeccable aesthetic result.

  • Checking the electrical constraints (220 V) and clearances required for the outdoor unit.

Once the plan is approved, our team proceeds with the installation in compliance with RBQ standards (#5645-9605-01) and environmental regulations. Each unit is tested, calibrated, and inspected before handover. And because we believe in transparency, no deposit is required : payment is only made when the client is 100% satisfied.


Concrete example: multi-zone installation in Laval-des-Rapides

We recently installed a CANAIR 4C28 – 5 Zones – 48,000 BTU in an intergenerational home in Laval-des-Rapides . The outdoor unit was placed away from the prevailing wind, while five indoor units were carefully distributed:

  • One in the main living room for even heating;

  • One in the kitchen, an area with high ambient heat;

  • One in the master bedroom for constant temperature sleep;

  • One in the basement office for comfortable teleworking;

  • One in the intergenerational section for independent control.

The owners immediately noticed an average 35% reduction in their electricity bill and impressively quieter operation compared to their previous forced-air system. In summer, the cooling performance kept the house at 23°C even during the July heatwaves.


Technology that makes a difference

Beyond its raw performance, the CANAIR 4C28 incorporates technical details that make all the difference:

  • TU1 copper coil , renowned for its corrosion resistance and exceptional durability.

  • Integrated multi-function board , preventing unnecessary energy consumption in heating mode.

  • Built-in shut-off valve , which automatically blocks the dispersion of refrigerant if a leak is detected.

  • Intelligent detection of A2L refrigerant , stopping the system to avoid any risk and immediately reporting the appropriate error code.

These elements demonstrate a level of design usually reserved for high-end commercial systems.


An ecological and responsible choice

Choosing a CANAIR 4C28 also means taking a concrete step for the environment. By replacing a natural gas system with an electric heat pump, you drastically reduce your greenhouse gas emissions , while actively participating in Quebec's energy transition .

Canair systems are Energy Star Cold Climate V6.1 certified, a standard that attests to their superior performance in cold conditions. Their all-electric operation makes them clean, sustainable, and eligible for several provincial and municipal grant programs .


The AirGreen experience: much more than just an installation

At AirGreen, our mission goes beyond selling equipment. We support our customers from the first call to post-installation maintenance .

Our commitments:

  • Responsive after-sales service : rapid intervention in the event of a problem or required maintenance.

  • Certified technicians trained in Canair, Fujitsu, LG, and other major brand technologies.

  • Personalized maintenance tips to extend the life of your heat pump.

  • Optional annual monitoring , guaranteeing the optimal performance of your device year after year.

Our approach is based on a relationship of trust and proximity with each client, whether it is an individual in Boucherville , a business in Longueuil , or a condominium in Montreal-North .


Why the CANAIR 4C28 is an investment for the future

  1. Four-season performance : efficient heating down to -30°C and smooth cooling up to +50°C.

  2. Eco-friendly technology : R-454B refrigerant with low carbon footprint.

  3. Absolute silence : less than 20 dB(A) in night mode for indoor units.

  4. Smart comfort : Wi-Fi, thermal detection, independent multi-zone control.

  5. Extended warranty : up to 10 years labor, parts and compressor.

  6. Local support : service provided by trained and certified Quebec experts.


In summary

The CANAIR 4C28 – R454B | 5-Zone – 48,000 BTU Outdoor Heat Pump combines power, intelligence and durability . It was designed to offer Quebec families tailored comfort, real savings and long-term reliability.

Thanks to its inverter technology, high energy efficiency, high-end components and ability to withstand extreme winter conditions, it has established itself as a benchmark in the multi-zone heat pump market.


Contact AirGreen today

Trust AirGreen , your HVAC specialist in Montreal, Laval, Longueuil, the North Shore, and the South Shore . Enjoy a free in-home estimate , transparent pricing , and no-deposit installation by true refrigeration experts.

📞 Montreal: (514) 316-2973
📧 sales@airgreen.ca
🏢 4951 Sainte-Catherine Street East, Montreal
🏢 1370 Rue Joliot-Curie, Boucherville (Showroom)
🕓 Monday to Friday: 9:00 a.m. to 4:00 p.m.

AirGreen – Your comfort, our passion.

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