Installation of a GREE FREE MATCH R32 DoubleZone heat pump in Laval-Ouest: wall-mounted outdoor unit on brick, 2 zones and 2 indoor heads
AirGreen installs a GREE FREE MATCH R32 DoubleZone heat pump in Laval-Ouest: outdoor unit on wall mount, 2 zones, clean finish, and residential HVAC expertise.
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A robust outdoor installation in Laval-Ouest for a well-integrated DoubleZone heat pump
In Laval-Ouest, AirGreen carried out the installation of a GREE FREE MATCH R32 DoubleZone heat pump, configured to supply 2 zones with 2 indoor units. This project perfectly illustrates the importance of a well-thought-out outdoor installation: the unit visible in the photo is securely fixed on a metal wall mount, directly on a brick wall, with particular attention paid to stability, clearance, protection of connections, and accessibility for HVAC maintenance.
The GREE outdoor unit, installed at height, rests on wall brackets designed to support the weight of the device while allowing adequate air circulation around the condenser. This approach is particularly useful when floor space is limited, when snow accumulation around the machine must be avoided, or when you want to preserve the yard, side passage, or circulation areas around the house.
In this specific case, the brick exterior facade presented a great technical opportunity: strong enough to receive a wall mount, but still requiring careful installation to properly distribute the load, limit vibrations, and ensure a durable attachment. This is the kind of detail that makes a major difference in the final quality of a HVAC installation.
A GREE FREE MATCH R32 DoubleZone heat pump adapted to the real needs of the home
The installed system is a GREE FREE MATCH R32, a multi-zone solution designed to supply several indoor units from a single outdoor unit. In this configuration, the client benefits from 2 independent zones, allowing comfort to be adjusted differently depending on the use of the rooms.
This type of system is particularly interesting for homes in Laval-Ouest where needs can vary from one floor to another or from one room to another. For example, one zone can be used to treat a more open living area, while the second can be reserved for a bedroom, an office, a finished basement, or a room that is more difficult to naturally cool.
With a DoubleZone heat pump, comfort becomes more precise. Occupants are not forced to set the entire house to the same temperature. Each indoor head can respond to a different demand, which improves the daily use of the system and avoids overcooling or overheating less used spaces.
Why the choice of a wall support was relevant in this installation
The image clearly shows an outdoor unit installed on a galvanized wall support, with inclined reinforcement arms and a stable base. This choice is never trivial. In many residential projects in Laval, Montreal, Longueuil, on the North Shore and on the South Shore, the outdoor location is one of the most important elements to validate before installation.
A wall support can offer several advantages:
- it frees up floor space;
- it helps protect the unit against certain snow accumulations;
- it facilitates natural drainage around the machine;
- it allows a more compact finish when the terrain is narrow;
- it can improve visual and technical access to certain connections;
- it reduces risks related to unstable or poorly leveled ground.
In this project in Laval-Ouest, the wall installation also allowed keeping the outdoor unit close to the refrigeration line passage while maintaining a clean finish on the facade. The device is well cleared, securely positioned, and installed to meet the condenser's ventilation needs.
Special attention to vibrations and solidity
An outdoor heat pump unit contains a compressor, a fan, and several mechanical components that can generate vibrations. Even when the device is designed to operate quietly, the quality of the fastening plays a crucial role.
On a brick facade, the installation must be done carefully. Inadequate fastening can cause vibrations transmitted to the wall, noise noticeable inside, or premature wear of the anchors. In this installation, the wall support was installed with a rigid structure, well aligned and adapted to the device.
The pads and support points under the unit also help limit vibrations. This step, often not very visible to the customer, is part of the work that distinguishes a quick installation from a durable one.
A clean and readable outdoor connection
In the photo, you can see the insulated refrigeration connections, the routing of the lines, as well as the electrical disconnection box nearby. This arrangement is important for two reasons: safety and maintenance.
The electrical disconnect installed near the outdoor unit allows for a local power cut during service or technical intervention. In a professional installation, this type of detail is essential. It facilitates the technicians' work and contributes to an installation compliant with expected HVAC practices.
The refrigerant lines, meanwhile, are insulated and routed to limit unnecessary exposure, mechanical stresses, and risks of deterioration. On a system with R32, like this GREE FREE MATCH R32, the quality of connections and leak tests remains fundamental. A good installation is not only visible in appearance: it is also confirmed by the rigor of the work done behind each connection.
R32: a current technology for a modern residential installation
The installed model uses the refrigerant R32, increasingly present in recent wall-mounted heat pump and multi-zone systems. This choice fits a clear technical trend: offering more efficient equipment, better adapted to current requirements and designed to optimize the operation of inverter systems.
In a house in Laval-Ouest, this type of technology allows for finer modulation. Rather than operating only in abrupt cycles, the heat pump adjusts its output according to the actual demand of the interior zones. The result is more stable comfort, with fewer sudden temperature variations.
For the occupants, this translates into a more pleasant daily use: one zone can be kept comfortable during the day, while another can be adjusted only when necessary. This flexibility is one of the main advantages of a well-sized DoubleZone system.
The technical challenges of this GREE installation in Laval-Ouest
Each installation has its particularities. In this project, the most visible aspect is the outdoor unit installed high on a brick wall, but the real work begins well before the device is fixed. Before proceeding, our team must validate the location, clearances, pipe routing, electrical access, working height, and visual impact.
A brick facade that requires precise installation
Brick is an excellent support when it is in good condition and when the anchoring is well done. However, it requires more attention than a simple wooden wall or a ground base. Fragile areas must be avoided, the wall structure respected, and the right fasteners used.
In this project, the team installed the support to provide a stable base for the outdoor unit. The chosen height protects the device from certain ground-level constraints while maintaining reasonable access for future interventions. This decision is particularly relevant in several areas of Laval-Ouest where side margins, windows, stairs, fences, or outdoor landscaping can limit options.
The routing of refrigerant lines: a detail that influences the entire quality of the project
The routing of refrigerant lines is one of the most important aspects in a HVAC installation. For a DoubleZone heat pump, two indoor heads must be connected to the outdoor unit. This requires careful planning to avoid unnecessary routes, excessive lengths, tight bends, or areas exposed to damage.
In the visible installation, the lines are grouped and protected near the outdoor unit. This type of finish reduces the risk of snagging and facilitates inspection. Connections must remain accessible while being sufficiently protected against the weather.
Poor line management can cause several problems: loss of efficiency, noise, condensation, insulation wear, or difficulty during future maintenance. That is why AirGreen pays special attention to this work, even when it is less visible than the units themselves.
The importance of proper condensation drainage
A heat pump used for air conditioning produces condensation at the indoor units. This water must be properly drained. In a 2-head configuration, drain management must be planned separately for each zone.
An insufficient slope, a poorly chosen route, or a poorly protected drain can cause backflows, odors, water drips, or long-term damage. For this type of project, our team checks the drainage from the design phase of the layout. The goal is simple: to provide a clean, reliable, and easy-to-maintain installation.
An installation designed for after-sales service
A good installation should look good on the day of installation, but it must also remain practical in the years that follow. The outdoor unit must be accessible for inspections, cleanings, electrical checks, and technical interventions. The disconnect switch must be easy to locate. The service panels must be able to open without obstruction.
In this installation in Laval-Ouest, the unit is placed to allow reasonable technical access while remaining clear of the window and wall. The space around the fan is free, which promotes good air circulation.
The concrete benefits for the customer
After installation, the customer benefits from a system capable of managing two distinct spaces with a single outdoor unit. This approach is particularly useful in homes where occupants do not all have the same comfort needs at the same time.
The most important advantages are:
- better temperature control by zone;
- a single outdoor unit for two indoor heads;
- a compact outdoor integration;
- a solution suitable for ductless homes;
- a reduction in temperature differences between rooms;
- a more targeted use of energy;
- a clean installation on an existing wall.
This configuration is often chosen by homeowners who want to improve comfort without undertaking major interior work. It allows adding air conditioning and heating in strategic areas without redoing the entire mechanical distribution of the house.
Subsidies and eligibility: an essential check
Heat pump systems can sometimes qualify for subsidy programs, depending on the exact combination installed, current criteria, certified performance, and provided documentation. For a model like the GREE FREE MATCH R32, eligibility must always be validated according to the outdoor unit, indoor heads, and complete configuration.
At AirGreen, we take the time to check these elements before guiding the customer. This step avoids assumptions and allows us to present clear information. For homeowners in Laval-Ouest, Montreal, Laval, Longueuil, the North Shore, and the South Shore, this verification can influence the final system choice.
Tips for homeowners considering a similar installation
An installation like this may seem simple at first glance, but several decisions must be made correctly. Before choosing a DoubleZone heat pump, it is helpful to consider some points:
- which rooms actually need independent control;
- where the outdoor unit can be installed without hindering access or aesthetics;
- if the wall can support a wall bracket;
- how the refrigerant lines will be routed;
- where the condensation drains will be discharged;
- if the installation must comply with condominium or neighborhood rules;
- how maintenance will be carried out in the years to come.
These questions help build a coherent project from the start. A well-chosen heat pump, but poorly installed, can disappoint. Conversely, a properly sized system installed with rigor can improve home comfort for many years.
AirGreen expertise applied to multi-zone installations
AirGreen regularly installs single-zone, DoubleZone, and multi-zone systems in Greater Montreal. This experience allows us to quickly recognize the constraints of a building: type of exterior cladding, electrical access, room locations, potential noise, length of piping, desired aesthetics, and possibilities for future service.
In this Laval-Ouest project, the goal was to offer a high-performance system, well secured, neatly connected, and adapted for real use in two zones of the house. The photo of the outdoor unit sums up the approach well: solid support, organized connections, accessible disconnect switch, and neat installation on brick.
For clients comparing HVAC contractors, this type of project shows the importance of choosing a team that masters both the technical aspect and visual integration. A GREE FREE MATCH R32 heat pump can be an excellent choice, but the quality of the installation remains decisive.
A representative project of modern residential installations in Laval
Laval-Ouest includes several types of homes: family properties, renovated houses, older constructions, buildings with extensions, and residences where outdoor space must be used intelligently. In this context, a DoubleZone heat pump represents a very practical solution.
This project demonstrates how an outdoor unit can be installed compactly on a brick wall while maintaining a professional finish. The client gets two comfort zones, R32 technology, a single outdoor unit, and an installation designed to last.
At AirGreen, we approach every project with the same rigor, whether the installation is in Laval-Ouest, Montreal, Laval, Longueuil, on the North Shore or on the South Shore. The desired result is always the same: a clear solution, properly sized, neatly installed, and adapted to the real needs of the client.
The job tools
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.
How the job unfolds
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.
What we check on a job like this one
Each number is a point we check on site. Switch between summer and winter to watch air and heat move.
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.
Is your home ready?
Check what applies at your place. A "no" is not a refusal: it is what we sort out during the estimate.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
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.
The right pages, at the right time
Four statements: true or false?
It all comes down to details you have just seen.
1. In heating mode, the outdoor unit can produce water.
During defrost cycles. That water must drain away without forming ice.
2. You pick the capacity with a simple square-footage rule.
Windows, insulation, orientation and how the room is used all count. Capacity is chosen on site.
3. A multi-zone connects several indoor heads to a single condenser.
One head per room, all on the same condenser. Each room keeps its own temperature.
4. The disconnect can sit behind the patio furniture.
It must stay accessible: it is what shuts the unit off for service.
0 / 4 right answers
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?
No question matches. Write to us: we answer.
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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).