A balcony installation in Vimont, with a GREE outdoor unit perfectly integrated into a tight space
In Vimont, in the Laval area, our AirGreen team carried out the HVAC installation of a GREE FREE MATCH R32 DoubleZone heat pump, a 2-zone system designed to supply two indoor heads from a single outdoor unit. This installation stands out due to a very particular context: the outdoor unit was installed on a covered balcony, behind a white railing, in a space where every clearance had to be precisely planned.
The project photo shows a site in the middle of the commissioning phase. You can see the GREE outdoor unit placed on an elevated support, the protected connections on the right side, the refrigerant lines running along the exterior cladding, as well as a vacuum pump used during the technical preparation phase of the system. This detail is important: a heat pump installation is never just about placing the device. The invisible steps, such as vacuuming, checking connections, validating tightness, and controlled startup, play a central role in long-term reliability.
In a residence in Vimont, this type of setup requires a custom approach. The balcony provides a convenient area for the outdoor unit, but it also imposes several constraints: air circulation, accessibility, noise level, support strength, line routing, cable protection, and respect for the outdoor living space. Our mandate was therefore to install a high-performance, clean, and durable solution without interfering with the normal use of the balcony.
Why a GREE FREE MATCH R32 DoubleZone heat pump in this Vimont home
The client needed a solution capable of servicing two distinct areas of the house without installing two separate outdoor units. A DoubleZone heat pump is particularly relevant in this kind of situation because it allows two indoor units to be connected to a single compatible outdoor unit. This offers better room-by-room comfort control while reducing outdoor clutter.
The GREE FREE MATCH R32 is well suited for residential projects where flexibility is essential. In a multi-level house, in a dwelling with separate rooms, or in a configuration where some zones heat faster than others, a 2-zone system allows for more balanced comfort. One head can serve a living area, while another can be placed in a bedroom, office, family room, or a more difficult-to-cool zone.
The use of refrigerant R32 also represents a significant advantage. This refrigerant is now widely used in new generations of wall-mounted and multi-zone systems. It allows manufacturers to offer modern equipment adapted to current expectations regarding efficiency and performance. As always, the exact BTU capacity and energy performance must be validated according to the precise combination installed: outdoor unit, indoor heads, line lengths, and applicable certification number.
A balcony installation: practical, but never improvised
Installing an outdoor unit on a balcony may seem simple, but it is often more technical than a ground installation. In this project in Vimont, our team had to consider the railing, exterior cladding, covered ceiling, available passage, and proximity to openings. The goal was to maintain good air circulation around the unit while keeping a stable and accessible installation.
An outdoor heat pump unit must be able to properly intake and exhaust air. If the device is too confined, too close to an obstacle, or poorly oriented, its performance can decrease. In this installation, the position behind the railing was studied to preserve the necessary clearances. The elevated support also allows placing the unit at an appropriate height, which facilitates connection management and reduces risks related to dirt or water accumulation on the balcony surface.
This type of installation is common in certain areas of Laval, but also in Montreal, Longueuil, on the North Shore and the South Shore, especially in houses with balconies, condos, duplexes, and residences where available land is limited. The important thing is not to choose the location just because it seems convenient. Ventilation, noise, future maintenance, and compatibility with the building must be checked.
Unit support: stability, leveling, and protection
In the photo, the GREE unit is installed on an elevated metal support structure. This choice is not only aesthetic. A well-installed support helps keep the unit level, limit vibrations, and clear the connections under the device.
In a professional HVAC installation, the level of the outdoor unit is essential. Poor inclination can harm internal drainage, cause unwanted vibrations, or complicate maintenance. The support must be strong enough to bear the unit's weight, resist normal operating vibrations, and remain stable despite freeze-thaw cycles and seasonal variations.
In this project, the support also allows clearing the space under the unit during commissioning. Notably, the technical equipment used by the installers can be seen under the machine. This accessibility facilitates startup steps and future interventions.
Refrigerant lines: a clean finish along the exterior cladding
Another visible element in the image is the routing of the lines on the right side of the unit. The ducts and cables are grouped and directed towards the exterior wall. In a multi-zone installation, this part requires special attention because the refrigerant lines must be protected, well insulated, and neatly routed to the indoor units.
Poor line management can create several problems:
- loss of efficiency if insulation is insufficient;
- neglected external appearance;
- risk of premature wear;
- difficulty accessing during maintenance;
- unnecessary exposure to weather;
- mechanical stress on the fittings.
In this installation in Vimont, our team worked to keep a clear and readable layout. The lines are placed to limit visual clutter on the balcony while respecting the system's technical needs. This type of detail is particularly important in a space used by occupants, where the installation must remain functional without turning the balcony into an intrusive technical area.
Commissioning: the step that protects the system's lifespan
The presence of the vacuum pump in the photo shows a fundamental step: vacuum pumping. Before starting a heat pump, the refrigerant lines must be properly prepared. This step is used to remove air and moisture from the refrigerant circuit. It is part of the technical actions that directly influence the system's reliability.
A properly carried out commissioning generally includes:
- checking the fittings;
- vacuum pumping;
- leak tightness check;
- validation of electrical connections;
- controlled opening of the refrigerant;
- operational tests for heating and air conditioning;
- checking the output temperatures;
- explaining the operation to the client.
At AirGreen, we place great importance on these steps. A heat pump can be well chosen, but if the commissioning is botched, the client risks experiencing performance or durability problems. In this project in Vimont, the installation was treated as a complete whole: location choice, mechanical installation, connection, circuit preparation, testing, and final verification.
A 2-zone solution designed for daily comfort and long-term maintenance
The desired outcome in this project was not just to cool two spaces. It was about offering a solution capable of meeting the real needs of the house while maintaining a clean and accessible outdoor installation. A well-installed DoubleZone heat pump can significantly improve the comfort of a residence, especially when rooms do not all respond the same way to temperature variations.
Two indoor heads for better control of living zones
With two indoor heads, the client can adjust comfort according to room usage. One zone may be used more during the day, while another becomes a priority in the evening or at night. This flexibility is one of the great advantages of a GREE FREE MATCH R32 system in a 2-zone configuration.
Rather than forcing a single indoor unit to cool or heat the entire house, the system distributes comfort more intelligently. This also helps avoid some common annoyances: a room that is too cold, a bedroom that remains warm despite air conditioning, or a comfortable open area while a closed office remains poorly served.
In Vimont as elsewhere in Laval, we often encounter this type of need in family homes, duplexes, two-level condos, and residences with extensions. An on-site assessment makes it possible to determine where the heads should be installed to provide useful airflow without creating unpleasant drafts.
The particular challenges of a covered balcony
A covered balcony offers some protection against the weather, but it can also limit air circulation if the unit is poorly placed. In this project, the ceiling height, railing, and side cladding were taken into account. The unit had to remain accessible but also sufficiently clear to function properly.
We also took future maintenance into account. A unit placed behind a railing can be well visually protected, but it must remain accessible to technicians. Service panels, fittings, valves, and electrical connections must be reachable without having to dismantle a significant part of the installation.
This logic is essential for any wall air conditioner, wall heat pump, or multi-zone system project. A very discreet installation but difficult to maintain is not a good long-term solution. At AirGreen, we always seek a balance between appearance, performance, and accessibility.
The importance of location for noise level
Noise level is an important topic for clients installing a heat pump near a balcony, terrace, or window. Even though modern units are designed to operate relatively quietly, the environment can amplify or dampen the sound.
In an installation like this, several factors must be considered:
- the distance between the unit and the windows;
- the presence of a covered ceiling;
- surfaces that can reflect sound;
- the proximity of neighbors;
- the stability of the support;
- the use of appropriate anti-vibration elements.
A well-installed, well-leveled unit placed on a suitable support will generally operate more stably. Reducing vibrations is especially important on a balcony structure, where sounds can sometimes transmit differently than on the ground.
Grants: always validate the exact combination
Owners who choose a heat pump are often interested in available grants. For multi-zone systems, eligibility depends on the exact combination installed. Simply having a well-known brand or a popular series does not automatically guarantee eligibility. The outdoor model, indoor head models, applicable certification, and current program requirements must be verified.
In the case of a GREE FREE MATCH R32, this check must be done before installation. At AirGreen, we help our clients understand this step, identify useful documents, and avoid common errors in grant applications. This thoroughness is important for clients in Montreal, Laval, Longueuil, the North Shore, and the South Shore, where programs can influence the final decision.
Practical tips for a similar installation
For owners considering installation on a balcony or in a confined space, certain points must be checked before choosing the equipment:
- confirm that the outdoor unit will have enough clearance;
- ensure the support can be securely installed;
- provide sufficient access for CVAC maintenance;
- check the route of refrigerant lines;
- consider noise levels near windows and neighbors;
- protect lines and cables against wear;
- validate the available electrical supply;
- confirm eligibility for subsidies based on the exact combination;
- choose the location of the indoor heads according to the actual air circulation.
These checks avoid costly compromises. A well-planned installation delivers a better result, both for comfort and durability.
An AirGreen approach adapted to Laval's realities
This installation in Vimont reflects our way of working. We adapt each project to the building's reality, rather than applying a single method. In this case, the covered balcony was the most logical location, but it had to be used properly. The support, unit position, line management, and commissioning were therefore planned as a whole.
AirGreen regularly installs wall-mounted heat pumps, DoubleZone systems, multi-zone configurations, and residential CVAC solutions throughout Greater Montreal. In Laval, we often work in Vimont, Duvernay, Chomedey, Sainte-Dorothée, Pont-Viau, Laval-des-Rapides, and neighboring areas. This experience allows us to understand local constraints well: balconies, vinyl or brick walls, narrow yards, condominiums, distant electrical panels, building regulations, and owners' aesthetic expectations.
A clean, accessible, and durable result
In the end, this installation of a GREE FREE MATCH R32 DoubleZone in Vimont offers the client a modern solution to improve the comfort of two zones in the house. The outdoor unit is stably installed on the balcony, the connections are organized, technical access is preserved, and the commissioning was carried out with the necessary care.
This project clearly shows that a good CVAC installation relies on a series of precise decisions. The location, support, clearances, lines, electricity, commissioning, and future maintenance must be considered from the start. This approach allows a heat pump to operate efficiently and meet the customer's expectations for many years.