Installation of a GREE FREE MATCH R32 Heat Pump Double Zone – 2 zones – 2 heads in Saint-Lambert
AirGreen installs a GREE FREE MATCH R32 DoubleZone heat pump in Saint-Lambert: two comfort zones, a clean wall-mounted installation, careful integration, and an efficient HVAC solution.
In summer, the outdoor unit rejects the house's heat outside.
Generic illustration of this type of installation, not a survey of this job site. Tap a number.
Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.
The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.
Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.
A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.
The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.
On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.
The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.
A Neat Wall Installation on a Brick Facade in Saint-Lambert
In Saint-Lambert, AirGreen completed the installation of a DoubleZone GREE FREE MATCH R32 heat pump, a 2 zones – 2 heads system designed to provide precise comfort in two distinct areas of the residence. This installation perfectly illustrates the type of HVAC project where equipment performance alone is not enough: the quality of the installation, visual integration, the strength of the wall mount, duct routing, and electrical planning make all the difference.
In the project photo, you can clearly see the GREE outdoor unit installed high on a brick facade, between two windows. This setup required a meticulous approach: the exterior wall allowed little margin for error, the existing openings limited available space, and the installation had to remain clean, durable, and discreet. Our team therefore chose a wall mount on sturdy metal supports, with vertical line routing inside a white conduit, well aligned with the house’s architecture.
The choice of a multi-zone heat pump was particularly relevant here. Rather than installing two separate outdoor units, the GREE FREE MATCH R32 solution allows powering two indoor heads from a single outdoor compressor. For a residence in Saint-Lambert, where exterior appearance, available space, and noise level are often important criteria, this approach reduces clutter while maintaining excellent comfort in multiple rooms.
The FREE MATCH M R32 series from GREE Canada is designed for multi-zone heating and cooling, with compressor capacities available from 18,000 to 60,000 BTU depending on configurations. GREE Canada also states that this range can power up to five indoor units, confirming the platform’s flexibility, even when used here in a DoubleZone 2 heads configuration.
Why a GREE FREE MATCH R32 for this project?
The system installed in Saint-Lambert met a common need in South Shore homes: achieving stable comfort in two different zones without multiplying outdoor equipment. In many residences, a single wall head is not enough to properly balance the temperature, especially when rooms are separated, located on different levels, or differently exposed to the sun.
With a DoubleZone heat pump, each indoor head can be controlled independently. This allows, for example, cooling a main living area while maintaining a bedroom, office, or basement at a different temperature. For homeowners, this type of system offers a concrete advantage: more control, fewer compromises, and better adaptation to the actual habits of the home.
The R32 technology also represents a modern choice for HVAC installations. GREE Canada presents this series as a range using R32 refrigerant, with inverter technology, automatic restart after power outages, multi-point diagnostics, compact and quiet design, as well as coils with anti-corrosion coating. In a region like Saint-Lambert, exposed to freeze cycles, rain, humidity, and significant seasonal variations, these features contribute to the durability of the installation.
A brick facade that required precise execution
One of the most important elements of this project was integrating the outdoor unit on a textured brick facade. This type of wall is solid but requires appropriate fastening, good weight distribution, and special attention to anchor points. Poor fastening can cause vibrations, premature wear of supports, or an unprofessional visual result.
Our team installed the outdoor unit on two metal wall supports, well aligned and securely anchored. The unit is sufficiently spaced from the wall to allow good air circulation while remaining compact and centered in the available space. The chosen location also keeps the unit off the ground, which is particularly useful in winter when snow, ice, and water accumulation can impair the operation of a heat pump installed too low.
This decision is not only aesthetic. A heat pump installed high is often better protected against snow buildup, salt spray, fallen leaves, and certain ground obstacles. However, a wall installation must always be done seriously: supports must be suited to the unit’s weight, vibrations must be controlled, and lines must be installed neatly to avoid mechanical stress.
Line routing: a clean, straight, and well-integrated conduit
In the image, you can see a white vertical conduit descending from the outdoor unit. This conduit protects the refrigerant lines, communication cable, and elements necessary for system operation. In a professional HVAC installation, this detail is far from secondary.
Poorly planned line routing can harm the facade’s appearance, complicate future maintenance, or create vulnerable points for infiltration. Here, the goal was clear: keep a simple, straight, clean, and logical path. The conduit was installed to follow a consistent vertical line without unnecessary detours, resulting in a much neater visual outcome.
For homeowners in Saint-Lambert, Longueuil, Brossard, Montreal, Laval, the North Shore or the South Shore, this is an important point to remember: the quality of an installation is not judged solely by the brand of the machine. How the ducts are routed, protected, and integrated into the home directly influences the durability, maintenance, and final appearance of the project.
A visible, accessible, and well-positioned electrical supply
To the right of the outdoor unit, you can also see the electrical box and the rigid conduit running vertically. This part of the installation is essential for the system’s safety and compliance. A multi-zone heat pump must be connected according to the manufacturer’s electrical requirements, with appropriate protections, an accessible disconnect switch, and a neatly executed installation.
In this project, the box’s positioning allows clear access for technicians during future maintenance or diagnostics. This is a detail we always plan carefully. An installation may look perfect at first glance, but if the disconnect switch is poorly placed, hard to access, or poorly protected, it complicates interventions and can create avoidable problems.
At AirGreen, we place great importance on coordinating the refrigeration part, the electrical part, and the overall aesthetics. A successful HVAC installation must operate efficiently, comply with applicable standards, and also remain logical for years to come.
Technical details that make the difference in a DoubleZone installation
A solution suited for homes with multiple comfort needs
The main advantage of a GREE FREE MATCH R32 DoubleZone is its ability to serve two zones with a single outdoor unit. In a home, needs are never uniform. A south-facing room can overheat quickly in summer, while another more shaded room can remain comfortable. In winter, an upper floor and a ground floor do not always react the same way.
With two indoor heads, the owner can adjust each zone according to its actual use. This can improve daily comfort and avoid overcooling or overheating certain rooms just to compensate for a more difficult zone. It’s a particularly interesting solution for renovated homes, extensions, duplexes, spacious condos, and residences where the existing central system does not distribute air evenly.
Efficiency, comfort, and inverter operation
Inverter technology allows the compressor to modulate its power instead of operating only on an on-off basis. This modulation helps maintain a more stable temperature, reduce sudden variations, and improve overall efficiency when demand is partial. In a 2 zones configuration, this adaptability is especially useful since the two heads do not always require the same load at the same time.
According to data published by GREE Canada for the FREE MATCH M R32 series, the range includes performance indicators such as SEER2, HSPF2, EER2, and COP depending on capacity and chosen configuration. For the 18,000 BTU variant shown on the manufacturer’s page, GREE Canada indicates 21.0 SEER2, 10.0 HSPF2, 12.0 EER2, and a COP of 3.90. These values must always be validated according to the exact combination of indoor units and selected compressor, as a multi-zone system depends on the complete installed set.
Winter performance and Quebec climate constraints
An installation in Saint-Lambert must be designed for all four seasons. In summer, the heat pump must manage humidity and heat spikes. In winter, it must operate despite cold, snow, ice, and defrost cycles. GREE Canada states for the FREE MATCH M R32 series an outdoor operating range down to -30 °C for heating and up to 48 °C for cooling for the displayed variant.
In practice, this does not replace a serious study of the home’s needs. Proper sizing remains essential. A heat pump that is too small will run too often at full capacity. A heat pump that is too large can cause short cycles, less stable comfort, and less effective dehumidification in cooling. For this reason, our team always analyzes the area, insulation, sun exposure, head locations, occupant habits, and the building’s physical constraints.
Subsidies and eligibility: carefully validate the final configuration
For homeowners comparing heat pump options in Montreal, Laval, Longueuil, on the North Shore or the South Shore, subsidies are often an important factor. With Hydro-Québec’s LogisVert program, eligibility depends on the exact configuration, the applicable AHRI or ENERGY STAR number, installation date, and rules in effect at the time of application. Hydro-Québec specifies that heat pumps installed from November 26, 2025, must be ENERGY STAR certified to be eligible, and that the client has nine months from the installation date to submit their application.
In a multi-zone system like the GREE FREE MATCH R32, it is therefore important to validate the complete set: outdoor unit, indoor heads, AHRI combination, detailed invoice, and required documents. At AirGreen, we prepare our quotes to make this information clear for the client, so the subsidy application is easier to complete after installation.
Mistakes to avoid in this type of project
A DoubleZone installation may seem simple on paper, but several mistakes can harm the final result.
The first mistake is choosing capacity based only on area, without considering the actual room distribution. Two houses of the same size can have very different needs depending on insulation, windows, orientation, and levels.
The second mistake is neglecting the location of indoor heads. A poorly positioned head can create uncomfortable drafts, leave a hot or cold spot in the room, or make maintenance more difficult.
The third mistake is underestimating the importance of outdoor line routing. On a visible facade like this project in Saint-Lambert, the path of conduits, alignment, color, and position of the outdoor unit completely change the final result.
The fourth mistake is choosing an installer based only on price. A well-chosen GREE heat pump can deliver excellent results, but only if the installation is done rigorously: fastening, leveling, clearance, drainage, line insulation, connections, commissioning, and final checks.
What this installation says about AirGreen’s approach
This project in Saint-Lambert clearly shows our way of working. We don’t just aim to install a machine. We aim to integrate a complete solution into an existing home, respecting its constraints, appearance, and the real needs of the occupants.
On this brick facade, every detail counts: the outdoor unit is well centered, the supports are neat, the conduit is straight, the electrical box is accessible, and the whole remains visually coherent. The result is a discreet installation despite the presence of significant technical equipment.
For our clients in Saint-Lambert, Montreal, Laval, Longueuil, the North Shore, and the South Shore, this is exactly what we aim for: a reliable, aesthetic, high-performance HVAC installation designed to last. A multi-zone heat pump represents a significant investment, and our role is to ensure that this investment is profitable, comfortable, and well executed from the start.
Personalized comfort for two zones with a single outdoor unit
After commissioning, the owner benefits from a system capable of managing two separate spaces with better precision than a single-zone solution. In summer, cooling can be adjusted according to room occupancy. In winter, heating can support the zones that need it most. This flexibility is one of the reasons why DoubleZone systems are increasingly popular in South Shore homes.
The GREE FREE MATCH R32 installed here combines a modern approach to comfort, a reduced outdoor footprint, and a configuration suited to homes where two zones must be efficiently managed. For AirGreen, this project represents a great example of a well-thought-out installation: technical, clean, durable, and adapted to the building’s reality.
How it goes, from the first call to the end
The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.
We look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
Model, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
Floors and furniture protected, wall plate position marked level, wall opening located.
A single opening, with the slope the drain needs to flow outside.
Set on a stand raised above the snow, with the clearances the manufacturer requires.
Connected, insulated and protected. The opening is then sealed against water, cold air and insects.
A dedicated circuit and an accessible disconnect near the outdoor unit.
Leak test, vacuum, then start-up and a check of heating and cooling.
Remote, modes, filters: we show you the essentials before we leave.
- The on-site estimateWe look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
- The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
- Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
- The wall openingA single opening, with the slope the drain needs to flow outside.
- The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
- Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
- The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
- Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
- The walkthroughRemote, modes, filters: we show you the essentials before we leave.
And at your place?
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
Conversion: 1 W = 3.412 BTU/h. An indication, not a load calculation: baseboards and furnaces are often stronger than the real need, and they can stay as backup. AirGreen confirms the capacity on site.
What to do, season by season
Three habits per season for this unit. They take a few minutes and prevent many calls.
- Clean the indoor unit's filters.
- Clear leaves and debris left on the outdoor unit by winter.
- Test cooling before the first hot days.
- Clean the filters more often when the unit runs a lot.
- Keep plants away from the outdoor unit.
- Check that no water drips from the indoor unit.
- Rake the leaves around the outdoor unit.
- Test heating before the first cold days.
- Book periodic maintenance before winter.
- Keep snow away from the stand and the front of the unit.
- Let the unit defrost: it is normal.
- Never hit the ice on the fins; call us if the unit stays iced up.
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What people ask us about this kind of work
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
Where does the outdoor unit go?
Are there grants?
Do I need a permit?
How cold can it heat?
How much can I save?
How is the LogisVert assistance calculated?
Is it noisy?
The outdoor unit is covered in ice: is that normal?
Does AirGreen hold the required licences?
Is the estimate free?
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Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).