GREE FLEXX R32 "ADD-ON" Central Heat Pump | 4T | Cased Coil

• BROCHURE: FRENCH
• BROCHURE: ENGLISH
• DRAWINGS: FRENCH
• DRAWINGS: ENGLISH

A central heat pump designed for the Quebec climate, without compromise

At AirGreen, we install central systems in very real-world conditions: prolonged winters down to -25°C , periods of intense cold down to -30°C , poorly insulated older homes in Montreal, airtight new constructions in Laval, multi-unit dwellings in Longueuil, wind-exposed residences on the North Shore , and mixed-use buildings on the South Shore . It is precisely in these contexts that the GREE FLEXX R32 | 4T | Coil-in-Casing "ADD-ON" Central Heat Pump demonstrates its full potential.

This system wasn't designed to offer good performance on paper alone. It's designed to deliver stable, consistent, and predictable heating , even during the most demanding periods of a Quebec winter, while maintaining efficient and comfortable central air conditioning during summer heat waves.

With a nominal capacity of 48,000 BTU , functional heating capacity down to -30°C and advanced INVERTER technology, this model is aimed at homeowners who want a serious, durable and technically sound solution.

The ADD-ON concept: a smart and economically logical approach

Integration without unnecessary demolition

The ADD-ON format makes perfect sense in the Quebec market, where a large proportion of buildings already have an existing central system. Unlike a complete replacement, which often requires extensive work, the GREE FLEXX ADD-ON Central Heat Pump allows you to:

• To retain an existing electric furnace or heat exchanger

• To use existing conduits , when these are adequately sized

• To reduce the overall costs of the project

• To limit the impact of the works on the occupancy of the building

In several projects carried out by AirGreen in Laval and on the South Shore, this approach has allowed clients to radically improve their thermal comfort without turning their mechanical room into a major construction site.

The key role of the coil in a box

The GCAC48H/NHA box-type coil plays a central role in this configuration. It acts as a thermal interface between the heat pump and the air distribution network, ensuring:

• Excellent thermal transmission

• An airflow rate adapted to central systems

• A clean and reliable integration with various blower cabinets

This component is often underestimated, but in practice, it directly influences temperature stability, air quality, and system durability.

Real, measurable, and consistent performance

Technical data adapted for everyday use

The GREE FLEXX R32 – 4-tonne central heat pump delivers performance that translates concretely into everyday life:

• Rated power : 48,000 BTU

• Power at -15°C : 48,000 BTU

• Power at -8°C : 35,200 BTU

• SEER2 : 15.230

• HSPF2 : 18.515

• COP at -8 °C : 11.853

• R-32 refrigerant , known for its superior energy efficiency

In single-family homes in East Montreal, we observed remarkable thermal stability , even during long periods of cold, with a notable reduction in the use of supplementary sources.

INVERTER technology: continuous comfort and controlled energy consumption

The variable-speed INVERTER compressor adjusts its power in real time according to the building's actual demand. This precise modulation allows for:

• A more constant indoor temperature

• A reduction in peak electricity consumption

• Fewer on/off cycles, therefore less mechanical wear.

• Quieter and more stable operation

In multi-unit residential buildings and houses with variable occupancy, this technology makes a tangible difference in comfort and energy costs.

Robust design and durable materials

Corrosion protection adapted to Quebec

The internal coil is composed of copper tubes and aluminum fins , protected by an anti-corrosion coating. This feature is particularly important in areas exposed to humidity, salts, or rapid temperature variations, especially near rivers or in certain densely built-up urban areas.

The outdoor unit also benefits from fins with a hydrophilic coating , promoting water flow and limiting the accumulation of ice and debris.

Intelligent defrost management

The system includes:

• Intelligent defrosting

• A condensation tray heater

• Optimized thermal management of the compressor

These components ensure reliable operation during frequent freeze-thaw cycles in winter, reducing yield losses and the risk of premature failure.

Central installation: the AirGreen approach

An HVAC installation that goes far beyond simply plugging it in.

At AirGreen, we know that a high-performing central heat pump can become inefficient if it's not properly integrated. That's why every project includes:

• A detailed analysis of the required airflow (CFM)

• A static pressure check of the ducts

• Precise adjustment of electrical sizing (MCA 40A / MOP 45A)

• A complete validation of the compatibility of the coil in the enclosure

• Optimization of the refrigeration piping (3/8 – 3/4)

This rigor helps to avoid common problems such as excessive noise, temperature variations or cycles that are too short.

LogisVert subsidy: a concrete financial advantage

The GREE FLEXX R32 | 4T "ADD-ON" Central Heat Pump is eligible for the LogisVert provincial subsidy , with an amount of up to $4,224 depending on the criteria in force.

In several recent projects in Longueuil and on the North Shore, this subsidy has allowed clients to invest in a superior quality central system while significantly reducing their net cost.

Long-term guarantee and reliability

• Compressor warranty : 12 years

• Parts warranty : 12 years

• Labor : not included (options available)

At AirGreen, we always clearly explain the warranty conditions and available options to avoid any ambiguity after installation.

Why entrust this project to AirGreen?

Choosing a central heat pump is a key decision for a building. AirGreen stands out because:

• Qualified and experienced refrigeration technicians

• Proven expertise in central HVAC installation

• Transparent pricing , confirmed before work begins

• $5 million liability insurance

• An active presence in Montreal, Laval, Longueuil, the North Shore and the South Shore

Our goal is not to sell a product, but to deliver a coherent, sustainable system adapted to each building .

Conclusion

The GREE FLEXX R32 | 4T | Casing "ADD-ON" Central Heat Pump represents a solid central solution for homeowners looking for reliable heating in cold climates , efficient air conditioning , and smart integration with an existing system.

For a personalized technical assessment , a clear quote , or to verify your eligibility for the LogisVert grant , contact AirGreen directly. Our team will support you from the initial analysis to final commissioning.