Gree FLEXX ULTRA R32 Central Heat Pump | 5 Tons | Montreal, Laval, Longueuil, South Shore & North Shore

• Official Brochure: FRENCH
• Official Brochure: ENGLISH

A central heat pump designed for the climatic and real estate realities of Quebec

In the world of HVAC , 5-tonne central systems occupy a very specific place. They are not suitable for small, standard residences or simple projects. They are intended for buildings with high requirements: large, multi-story single-family homes, full duplexes and triplexes, multi-unit residential buildings, light commercial buildings, or even renovated properties with imperfect thermal insulation.

At AirGreen , we work daily in Montreal, Laval, Longueuil, and on both the South and North Shores , and we've found that the Gree FLEXX ULTRA R32 – 5-tonne central heat pump perfectly meets these needs. This system wasn't designed to impress on paper, but to offer consistent thermal stability , genuine mechanical adaptability , and reliable operation in Quebec's winter conditions , even during periods of intense cold.

Unlike many central heat pumps that quickly lose efficiency when the temperature drops, the FLEXX ULTRA R32 has been developed to provide efficient heating down to -30°C , while maintaining precise control of airflow and power consumption.

A flexible central architecture, ideal for complex replacements

One of the major advantages of this model lies in its design, which is specifically intended for replacing existing equipment . In Greater Montreal, the majority of buildings are not new constructions. Conduits are sometimes old, mechanical rooms are cramped, and electrical constraints are very real.

The Gree FLEXX ULTRA R32 – 5 tonnes integrates effectively into these contexts thanks to:

• Its compatibility with conventional 24V thermostats

• Its side discharge facilitates outdoor installation

• Its ability to operate with existing conduit networks, when these are properly assessed and adjusted

At AirGreen, we systematically analyze ductwork statics, air distribution, and heat loss before any installation. This preliminary work helps avoid common mistakes, such as unnecessary oversizing or temperature imbalances between floors.

Measurable and consistent performance for a 5-tonne system

Heating capacity and winter stability

With a rated output of 60,000 BTU , this system is designed to meet significant heating needs without excessive cycling. At -8°C , it maintains a heating capacity of approximately 45,000 BTU , which is crucial for maintaining consistent comfort in large buildings.

In practice, this means:

• Fewer temperature variations

• A more stable compressor load

• Improved long-term durability

We have observed these results in several projects in Laval and on the North Shore , particularly in open-plan residences where air volumes are significant.

Efficient air conditioning and humidity management

In cooling mode, the FLEXX ULTRA R32 provides a cooling capacity of 60,000 BTUs , while also offering a dehumidification rate of approximately 17.22 pints per hour . This aspect is often underestimated, but it is crucial in areas like Longueuil, Brossard, or certain parts of Montreal , where summer humidity can quickly compromise indoor comfort.

Proper dehumidification allows for:

• A faster feeling of freshness

• A reduction in condensation

• Improved comfort without overcooling

R32 refrigerant: a technical and strategic choice

The choice of R32 is not solely based on environmental considerations. In our field experience, this refrigerant offers tangible benefits:

• Improved energy efficiency per fluid charge

• More stable operating cycles

• Reduction in the total refrigerant charge , facilitating future interventions

For owners of rental or commercial buildings in Montreal and on the South Shore , this choice also represents long-term regulatory security , as environmental standards evolve rapidly.

Mechanical and acoustic data adapted to large volumes

Noise management is often a critical criterion in central projects. This model offers:

• Indoor noise level of approximately 53 dB(A)

• Outdoor noise level of approximately 63 dB(A)

• Airflow up to 1,500 CFM

These values ​​allow for seamless integration into residential or commercial mechanical rooms, without compromising the acoustic comfort of the occupants.

Concrete scenarios of installations carried out by AirGreen

Large single-family home on the South Shore

In a 3,500 sq ft home in Boucherville , the client complained of persistent cold spots upstairs and high energy consumption with their old central heating system. After a thorough analysis, we installed a Gree FLEXX ULTRA R32 – 5-tonne unit , along with precise duct balancing. Result:

• Uniform temperature on all levels

• Significant reduction in prolonged cycles during winter

• Stable comfort even during periods below -25°C

Multi-unit residential building in Longueuil

In an apartment building with limited electrical supply, the 40A MCA and 45A MOP allowed installation without major modification to the electrical panel, avoiding significant costs for the owner.

HVAC maintenance, durability, and mistakes to avoid

Even a high-end system can quickly lose efficiency if it is poorly maintained. The most common mistakes we encounter include:

• Inadequate filters or filters replaced too infrequently

• Undersized conduits for a 5-tonne system

• No calibration required after installation

At AirGreen, each installation comes with clear recommendations for HVAC maintenance , tailored to the actual use of the building, in order to preserve performance over the long term.

LogisVert subsidy and investment strategy

The Gree FLEXX ULTRA R32 – 5-tonne central heat pump is eligible for the LogisVert grant , which can reach up to $5,400 depending on the applicable criteria. For many homeowners in Montreal, Laval, Longueuil, on the South Shore and the North Shore , this financial assistance makes the project not only viable, but also strategically advantageous from an energy perspective.

Why AirGreen makes a difference in central systems

Installing a 5-tonne central heat pump is never a standardized installation. At AirGreen , we provide:

• In- depth expertise in high-capacity central systems

• A nuanced understanding of Quebec buildings

• Clear and transparent pricing , communicated before the work begins

• Experienced technicians specializing in central HVAC

Each project is treated as a unique case, with a rigorous technical approach and a focus on sustainability.

Conclusion

The Gree FLEXX ULTRA R32 – 5-tonne central heat pump stands out as a reliable, consistent, and high-performance solution for demanding buildings in Quebec. It meets real heating, cooling, and dehumidification needs, while offering essential installation flexibility in existing buildings.

For a detailed quote , a personalized analysis, or any questions regarding HVAC installation, maintenance, or the LogisVert subsidy in Montreal, Laval, Longueuil, on the South Shore or North Shore , contact AirGreen directly . Our team will provide you with precise recommendations tailored to your building and your long-term objectives.