CANAIR 4CDH Central Heat Pump - R454B | 2 Tons
A new generation of central comfort: performance, efficiency and peace of mind by Canair
At AirGreen, we believe home comfort should never be a compromise between energy efficiency, reliability and serenity. That is why we are proud to present the CANAIR 4CDH Central Heat Pump - R454B | 2 Tons, a system designed for cold climates like Quebec’s, able to heat even in the harshest winters.
Designed to heat down to -30°C, this central unit combines inverter technology, a compact side-discharge design and R-454B refrigerant into a complete, durable HVAC solution.
A design built for the modern Quebec home
Compact format, maximum flexibility
The CANAIR 4CDH stands out for its side-discharge design, which makes it slimmer and lighter than traditional top-discharge systems. The result: simpler installation, a smaller footprint and a good fit in any setting, whether a backyard, a rooftop terrace or a tight space.
This design also makes the outdoor unit easier to transport and handle.
Quiet operation and acoustic comfort
Thanks to its variable-speed inverter technology, the CANAIR 4CDH continuously adapts its output to keep a stable, even temperature while reducing operating noise. With a sound level of 60 dB(A) outdoors and from 28 dB(A) indoors, it suits dense residential areas.
High energy efficiency
Energy savings and smart airflow
The built-in constant-airflow fan automatically measures pressure changes caused by dirty filters or duct resistance. The system then adjusts motor power and speed to keep the right airflow, which limits wasted energy.
Performance data — 2-ton version
Cooling capacity: 23,000 BTU (2 tons nominal)
Heating capacity: 24,000 BTU
SEER2: 18.3
HSPF2: 10.0
EER2: 11.7
ENERGY STAR® cold climate certified
Inverter compressor for smooth, stable performance
Power supply: 208-230V / 1 / 60 Hz
Refrigerant: R-454B (GWP of 466)
These values place the 4CDH among efficient central heat pumps, which means lower energy costs than traditional electric heating.
R-454B technology: an eco-responsible choice
The CANAIR 4CDH uses A2L R-454B refrigerant, whose global warming potential (GWP) is 466, compared with 2,088 for traditional R-410A, or 78% lower.
By choosing this model, owners take part in the energy transition without compromising performance.
Four-season comfort, even at -30°C
Stable heating in extreme conditions
According to the NEEP data for this model (AHRI 215449705), the CANAIR 4CDH delivers 20,800 BTU/h at -8°C (COP 2.42) and up to 21,600 BTU/h at -15°C (COP 1.87). It keeps heating down to -30°C (maximum capacity of 12,000 BTU/h, COP 1.43).
Gentle, efficient cooling in summer
In the warm months, the heat pump extracts indoor heat and rejects it outdoors, for steady, quiet cooling. With the Follow Me function, the temperature is set according to where the controller actually is.
Easy maintenance and durability
A design that makes maintenance easier
The 4CDH indoor unit is designed to make life easier for installers and owners.
Modular sliding evaporator for quick coil access.
Easy-to-remove service panels to clean or replace filters.
Electrical components on just two PCB boards.
The system also includes a self-cleaning function that automatically dries the coil to limit mould.
Quality components and robust construction
The evaporator coil and condenser are hydrophilic aluminum, a corrosion-resistant material that helps heat transfer. Everything is protected by a galvanized cabinet with a polyester-urethane finish.
An intelligent and safe system
Automatic A2L refrigerant detection: immediate shutdown and error code display in case of a leak.
Built-in heating cables in the outdoor base to prevent ice in winter.
Automatic restart after a power outage.
Self-diagnosis and self-protection: the system protects itself and shows error codes to make maintenance easier.
Wi-Fi included: remote control via a smart wired controller.
Warranty and LogisVert aid
The CANAIR brand is distributed in Quebec by Descair, a Quebec family business founded in 1971. The 4CDH is covered by a 10-year warranty on parts and the compressor and 6 years on labour, directly from the distributor, with the option of a 10-10-10 extended warranty (parts, compressor and labour).
This combination (AHRI 215449705) is on Hydro-Québec’s LogisVert list of October 27, 2026, with an indicative amount of $2,496; only Hydro-Québec confirms the aid granted.
Our clients also benefit from:
Free on-site estimates
No advance payment
Professional installation by refrigeration technicians under AirGreen's RBQ licence 5645-9605-01
100% satisfaction guaranteed before payment
Why choose AirGreen for your HVAC installation
At AirGreen, we install every system as if it were our own.
Our heating, ventilation and air conditioning (HVAC) experts serve Montreal, Laval, Longueuil, the North Shore and the South Shore, with fast, precise and careful service.
We know the CANAIR 4CDH - R454B well and adjust pressure, airflow and output to your home’s configuration. To see installations completed by our teams, visit our Our projects page.
Conclusion: a benchmark for lasting comfort
The CANAIR 4CDH Central Heat Pump - R454B | 2 Tons delivers smart, quiet and environmentally friendly comfort. With its high energy efficiency, compact design and 10-year warranty, it is an excellent investment in home comfort in Quebec.
Contact AirGreen today for a free estimate.
Phone: 514-316-2973
Email: sales@airgreen.ca
Montreal – Laval – South Shore – North Shore
Warranty: 10 years on the compressor, 10 years on parts and 6 years on labour, directly from the distributor.