CANAIR 4CDH R-454B | 5T Central Heat Pump "ADD-ON" - Cased Coil

• BROCHURE

A central ADD-ON solution highly adapted to existing buildings in Quebec

At AirGreen , we work daily in buildings already equipped with central forced-air systems: single-family homes built between the 1980s and 2015, urban duplexes and triplexes, multi-unit residential buildings, local businesses, and light institutional buildings. In these contexts, the CANAIR 4CDH R-454B | 5T ADD-ON Central Heat Pump stands out as a strategic, well-considered solution perfectly aligned with the realities of Quebec's housing stock.

This model was designed to be intelligently added to an existing system , typically an electric furnace, without requiring a complete overhaul of the building's mechanical systems. This add-on approach allows you to benefit from a modern, high-performance, and energy-efficient central heat pump , while maintaining a reliable backup system for even the most extreme weather conditions.

Capable of providing heating down to -30°C , offering a cooling capacity of 60,000 BTU , using the environmentally friendly R-454B refrigerant and ENERGY STAR® Cold Climate certified, this central heat pump represents a concrete response to current requirements in terms of comfort, energy efficiency and electrical transition.

Why the ADD-ON configuration is often the best technical and economic decision

In the vast majority of projects we analyze in Montreal, Laval, Longueuil, on the North Shore and the South Shore , the building already has:

• of a functional conduit network

• of an electric furnace still in good condition

• of a sufficient power supply

• of a limited mechanical space

Under these conditions, replacing the entire system can be unnecessarily expensive. An ADD-ON central heat pump like the CANAIR 4CDH 5T offers a better alternative:

• to ensure uniform central air conditioning in all areas

• to cover the majority of annual heating needs

• to reduce dependence on resistive heating

• to extend the lifespan of existing equipment

• to benefit from substantial provincial subsidies

• to limit invasive work in the building

This approach is particularly appreciated by owner-occupiers, property managers and condominiums seeking a measurable return on investment , without compromising on comfort.

Heating performance designed for Quebec winters

Thermal capacity and stability in cold weather

The CANAIR 4CDH R-454B | 5T Central Heat Pump delivers solid and consistent heating performance, even during prolonged periods of low temperatures:

• Rated capacity : 60,000 BTU

• Guaranteed operation down to -30°C

• Available power at -8°C : approximately 37,800 BTU

• Power at -15°C : approximately 45,000 BTU

• High COP in cold climates , enabling efficient heat production with controlled electricity consumption

In many projects carried out by AirGreen on the South Shore and the North Shore , this type of ADD-ON central heat pump makes it possible to cover 70% to 85% of the annual heating demand , with the electric furnace taking over only during periods of intense cold or as a safety redundancy.

This hybrid strategy ensures thermal stability , reduces peak consumption and improves indoor comfort throughout the winter season.

High-performance and evenly distributed central air conditioning

In air conditioning mode, the CANAIR 4CDH 5T offers a powerful and well-balanced central solution:

• 60,000 BTU cooling

• SEER2 up to 16.0

• EER2 of 10.0

• High and constant airflow

• Effective humidity management

This type of system is particularly suitable for multi-story houses, large surface area buildings and dwellings where wall solutions reach their limits in terms of distribution and comfort.

Inverter technology: comfort, silence and durability

The 4CDH series is based on continuously modulating inverter technology , allowing the heat pump to adjust its output according to the building's actual needs. Unlike traditional fixed-cycle systems, this technology offers:

• a more stable indoor temperature

• fewer sudden changes

• better distributed electricity consumption

• a reduction in mechanical wear

• quieter operation , even for a 5-tonne unit

The outdoor noise level, around 65 dB(A) , remains very competitive in this power category, which is a notable advantage in dense residential areas or apartment buildings.

R-454B refrigerant: a choice aligned with the future

The CANAIR 4CDH R-454B | 5T Central Heat Pump uses a new generation refrigerant with low global warming potential , meeting new environmental and regulatory requirements.

For property owners and managers, this means:

• improved investment sustainability

• increased compliance with future standards

• a reduced environmental footprint

• direct compatibility with energy transition programs

At AirGreen, we systematically integrate the technical considerations related to this type of refrigerant: leak detection, safe configuration, electrical compliance and rigorous commissioning.

Internal unit designed for ADD-ON integration

The CEB-60MX2121 indoor unit was designed to simplify installation and maintenance in existing environments:

• Compact format , facilitating integration into mechanical rooms

• Multi-position installation (vertical or horizontal)

• Constant flow ECM motor

• Static pressure up to 0.8 in H₂O

• Coil made entirely of hydrophilic aluminum

• Direct access to the filter and components

• Optional electrical components up to 25 kW

This design allows our teams to optimize integration with existing ducts, while ensuring a balanced airflow throughout the building.

Advanced features useful on a daily basis

The CANAIR 4CDH 5T incorporates numerous features that improve the user experience and system reliability:

• intelligent automatic defrosting

• self-diagnosis and self-protection

• Automatic restart after failure

• prevention of cold air blasts at startup

• self-cleaning of coils

• heating cables for the outdoor unit

• refrigerant detection with safety shutdown

• Wired controller with Wi-Fi option

These functions are particularly appreciated in multi-residential and commercial settings, where stability and reduced service calls are essential.

Concrete examples of installations carried out by AirGreen

Single-family residence – North Shore

In a Blainville house equipped with a functional but energy-intensive electric furnace, we installed a CANAIR ADD-ON 4CDH 5T Central Heat Pump .
After a full season:

• significant reduction in winter consumption

• constant thermal comfort

• quiet central air conditioning in summer

• energy transition without complete system replacement

Apartment building – Longueuil

In a duplex with an existing ductwork system, the ADD-ON solution made it possible to offer occupants modern central air conditioning and efficient heating, while limiting construction work and interruptions.

Long-term guarantee and peace of mind

The CANAIR 4CDH R-454B | 5T Central Heat Pump is covered by:

• 10 years on the compressor

• 10-year warranty on parts

• Additional warranty available on labor

At AirGreen, we always clearly explain the warranty conditions and we assist our customers in choosing additional protections suited to their actual use.

Why entrust this project to AirGreen?

Installing a high-performance ADD-ON central heat pump requires real expertise: thermal analysis, load calculation, electrical verification, integration with the existing furnace, balancing of the duct network and precise commissioning.

At AirGreen , we provide:

• a rigorous technical approach

• proven field experience

• an in-depth knowledge of the buildings of Greater Montreal

• complete transparency on recommendations and costs

Conclusion

The CANAIR 4CDH R-454B | 5T "ADD-ON" Central Heat Pump is a complete, reliable central solution perfectly suited to the Quebec climate, ideal for modernizing an existing system without replacing it entirely.

To find out if this configuration is suitable for your building, to obtain a clear estimate, or to check your eligibility for subsidies, contact AirGreen directly . Our team will offer you a concrete, tailored, and sustainable solution.