A DoubleZone installation well integrated into a confined space in Sainte-Anne-de-Bellevue
In Sainte-Anne-de-Bellevue, AirGreen carried out the installation of a GREE FREE MATCH R32 DoubleZone heat pump, configured to supply 2 distinct zones with 2 wall-mounted units. This type of project represents exactly the kind of intervention where the experience of a contractor specializing in HVAC installation makes all the difference: the outdoor space was limited, the brick wall required a clean finish, and the outdoor unit had to be installed with sufficient clearance to ensure good air circulation, accessible maintenance, and lasting stability.
The construction site photo clearly shows the GREE outdoor unit installed on a robust wall bracket, fixed near the foundation and aligned with the pipe routing. We also notice the GREE logo, the Inverter mention, the label related to the R32 refrigerant, the lines protected by sleeves, as well as a brown exterior molding that visually integrates with the brick wall. These details may seem secondary at first glance, but they reveal a carefully planned installation: the device is not simply placed; it is integrated into the existing environment.
In this sector of the west island of Montreal, properties often present particular constraints: narrow side access, masonry walls, proximity to windows, shared spaces between neighbors, existing electrical boxes, visible conduits, and higher aesthetic requirements. Our role is to propose a solution that works technically, while respecting the reality of the building. In this case, the GREE FREE MATCH R32 proved to be an excellent choice for offering independent comfort in two zones, while keeping a single outdoor unit.
A GREE FREE MATCH R32 heat pump chosen for its flexibility and efficiency
The GREE FREE MATCH R32 model is particularly appreciated for multi-zone installations. It allows connecting several indoor units to a single outdoor unit, which is ideal for owners who want to improve comfort in two rooms or two areas of the house without multiplying outdoor mechanical equipment.
In this project in Sainte-Anne-de-Bellevue, the client's objective was clear: to obtain an efficient system for heating and cooling two zones, with independent control, a discreet outdoor installation, and a finish that does not detract from the brick facade. The DoubleZone solution precisely met this need.
Why a 2-zone – 2-head configuration was relevant
A house does not always need a complete central system to significantly improve its comfort. In many cases, a DoubleZone heat pump allows targeting the most used rooms or the most difficult spaces to temper. This can be a sun-exposed living room, an upstairs bedroom, a home office, an open-plan area, or an extension poorly served by the existing system.
With two wall-mounted units, the client can manage each zone separately. This flexibility is very useful in homes in Montreal, Laval, Longueuil, on the North Shore, and on the South Shore, where heating and cooling needs vary greatly depending on the building's orientation, insulation, lifestyle, and room usage.
A DoubleZone configuration offers, in particular:
- Improved comfort in two distinct spaces.
- A single outdoor unit, thus less clutter.
- Temperature modulation according to the actual occupancy of the rooms.
- Better control of energy consumption.
- A more discreet solution than multiplying single-zone units.
- An installation adapted to homes where outdoor space is limited.
For this project, GREE's Inverter technology also represented a significant advantage. Instead of constantly operating at full capacity, the compressor adjusts its speed according to demand. This helps maintain a more stable temperature, reduce sudden cycles, and improve daily comfort.
Visible details in the image: a clean, compact, and well-thought-out installation
The image shows an outdoor unit positioned near a brick wall, on a solidly fixed metal support. This choice keeps the unit above ground, which limits direct exposure to water, accumulated snow, debris, and splashes. In the Quebec climate, this detail is important. An outdoor heat pump must be installed in a way that keeps it stable, clear, and accessible even after several seasons.
The brown molding visible to the right of the unit is also a significant element. It protects and conceals the conduits, while blending better with the brick siding than a standard white molding. At AirGreen, we pay real attention to this type of finish, especially in residential areas where exterior appearance matters as much as mechanical performance.
We also observe the refrigeration lines and communication wires neatly emerging from the unit. A multi-zone installation requires rigorous organization of connections. The lines must be insulated, protected, well-curved, properly secured, and routed to avoid mechanical stress. Poor curvature, insufficient protection, or improvised routing can cause long-term problems: premature wear, vibration, infiltration, loss of efficiency, or difficulty in maintenance.
The challenge of the brick wall and tight access
Working on a brick wall requires a precise method. Drilling must be done carefully to avoid damaging the masonry and to ensure a clean passage for the conduits. Sealing around penetrations is also essential. A poorly sealed hole can become a source of air or water infiltration, especially during freeze-thaw cycles.
In this project, the installation also had to take into account several existing elements: visible conduits, nearby wiring, electrical box identified for the dwelling, adjacent window, concrete foundation, and limited space around the unit. Our team therefore organized the conduit routing to minimize clutter, while maintaining the necessary access for future HVAC maintenance operations.
This type of intervention is common in the more established neighborhoods of Montreal and the west island. Houses are not always designed initially to accommodate modern multi-zone heat pump systems. It is therefore necessary to adapt the solution to the building, rather than forcing a standard installation.
R32: a modern refrigerant that requires professional work
The mention R32 visible on the unit's label reminds us that this installation uses a new generation refrigerant. R32 is recognized for its good energy efficiency and its lower global warming potential compared to some refrigerants used in older systems. It is increasingly present in recent wall-mounted air conditioner and heat pump equipment.
However, its use requires installation by qualified technicians. Connections, vacuuming, leak tests, line lengths, and commissioning must be handled rigorously. At AirGreen, we do not sell a machine without considering the quality of its installation. The actual performance of a system depends as much on the equipment as on the execution.
A well-installed GREE FREE MATCH R32 can offer an excellent level of comfort. Poorly installed, it can become noisy, less efficient, or more prone to service calls. This is why our method always includes a complete verification before final handover to the client.
The role of commissioning in final performance
Installation does not end when the outdoor unit is fixed to the support. Once the connections are completed, our technicians proceed with a structured commissioning. This step confirms that the two zones communicate correctly with the outdoor unit, that the heads respond to commands, that the condensate drains are working properly, and that the operating parameters are stable.
We particularly check:
- The mechanical stability of the outdoor support.
- Clearances around the unit.
- The tightness of the refrigerant connections.
- The quality of the pipe insulation.
- The routing of wires and communication lines.
- The independent operation of the two wall-mounted units.
- The drainage of each indoor unit.
- Behavior in cooling and heating.
- Vibrations and noise level.
- The client's understanding of the operation.
This last step is important. A multi-zone system offers more possibilities than a single-zone unit. The client must understand how to adjust each head, when to use heating or cooling modes, why to avoid certain contradictory settings between zones, and how to maintain the indoor filters.
A solution adapted to the real needs of homeowners
This project in Sainte-Anne-de-Bellevue clearly demonstrates the advantage of a personalized approach. Some homeowners initially think of installing a single wall unit for the entire house. Others consider a more expensive central system, whereas the actual need concerns only two spaces. Our job is to accurately assess the situation in order to recommend the most consistent solution.
In this case, a DoubleZone heat pump offered the right balance between comfort, cost, discretion, and efficiency. The client could achieve a tangible improvement in two important zones, without transforming the entire house or installing multiple outdoor condensers.
For residences on the west island, this type of solution is often very relevant. Houses may have added rooms, floors with temperature differences, open areas difficult to cool, or bedrooms where nocturnal comfort becomes a priority in summer. With a well-planned installation, the DoubleZone system allows these discomforts to be corrected in a targeted manner.
Mistakes to avoid in a DoubleZone installation
A multi-zone installation should never be improvised. Several mistakes often occur when the project is entrusted to a less experienced team.
The first mistake is incorrectly positioning the wall-mounted units. A head placed too close to an obstacle, too high in a poorly ventilated area, or oriented directly towards a bed or sofa can create discomfort despite good capacity. The indoor location must take into account air circulation and the actual use of the room.
The second mistake concerns drainage. Each indoor unit produces condensation in cooling mode. If the slope is insufficient or if the drain path is poorly designed, the client may experience leaks, blockages, or humidity problems. At AirGreen, we pay particular attention to condensate management.
The third mistake is related to outdoor piping. A misaligned molding, exposed lines, or hard-to-access connections detract from durability and appearance. In the Sainte-Anne-de-Bellevue project, the exterior finish was designed to integrate with the brick wall and maintain a visually clean result.
The fourth mistake is neglecting access for maintenance. A unit that is too cramped, poorly cleared, or installed without thought can complicate future interventions. For us, HVAC maintenance is part of the initial design.
Subsidies and eligibility: an aspect to validate according to the installed combination
Customers who choose a heat pump are often interested in available subsidy programs. The criteria may vary depending on the model, capacity, combination of indoor units, AHRI number, and the rules in force at the time of application. For a GREE FREE MATCH R32, it is therefore important to check the exact configuration installed before confirming eligibility.
At AirGreen, we assist clients in understanding the necessary documents: invoice, model information, installation details, and general submission steps. We know that subsidies can influence purchasing decisions, but we always remind that a system must first be chosen for its technical relevance. A well-adapted, well-installed, and well-used machine will offer better long-term value.
An installation representative of AirGreen's expertise
This installation in Sainte-Anne-de-Bellevue reflects our way of working: site analysis, selection of appropriate equipment, clean integration into the building, compliance with technical constraints, and rigorous commissioning. The GREE FREE MATCH R32 DoubleZone installed here offers the client an effective solution for two zones, with a single outdoor unit and a meticulous finish on a brick wall.
Throughout the greater Montreal area, as well as in Laval, Longueuil, on the North Shore, and the South Shore, we are seeing more and more homeowners seeking flexible, less intrusive, and better-adapted HVAC solutions for their lifestyle. Multi-zone systems respond very well to this demand when properly designed.
AirGreen distinguishes itself by its ability to manage details: location, support, drilling, sealing, pipes, moldings, drainage, connections, tests, and client explanations. These are the details that transform a simple installation into a reliable, pleasant to use, and durable system.
For this project, the final result is clear: a GREE FREE MATCH R32 DoubleZone heat pump neatly installed in a confined space, with a harmonized exterior finish and a configuration designed for daily comfort. This is exactly the type of achievement we prioritize: practical, durable, precise, and adapted to the reality of the building.