A compact wall installation on brick, adapted to the narrow passages of Longueuil
In Longueuil, our AirGreen team carried out a meticulous HVAC installation of a GREE FREE MATCH R32 DoubleZone heat pump, a 2-zone, 2-head system designed to provide precise comfort in two distinct spaces within the same residence. This project is an excellent example of an installation where the machine's performance alone is not enough to guarantee a good result: the location, mounting, routing of lines, service access, and exterior finish all play an equally important role.
The photo of this installation shows a GREE outdoor unit mounted on a metal wall bracket, near a red brick wall, with a vertical brown line cover perfectly integrated into the facade. You can also notice the carefully grouped refrigerant lines, protected electrical supply, supports equipped with anti-vibration pads, and a relatively tight workspace. This type of configuration is common in Longueuil, especially in residential areas where side access is narrow, buildings are close together, and the exterior aesthetics must remain clean.
In this specific case, the goal was clear: to install an efficient, discreet, and durable multi-zone wall-mounted heat pump, while respecting the constraints of the existing building. At AirGreen, we approach this type of project with a simple method: first analyze the environment, then choose the most logical placement, and finally execute each step with precision.
Why choose a GREE FREE MATCH R32 for a DoubleZone project
The GREE FREE MATCH R32 is a very interesting solution for owners who want to air condition and heat two different zones without multiplying outdoor units. A DoubleZone system allows two indoor heads to be connected to a single outdoor unit. For a property in Longueuil, this often represents an excellent compromise between comfort, efficiency, and outdoor integration.
In a house, condo, or multi-level dwelling, the heating and air conditioning needs can vary greatly from one room to another. A sun-exposed bedroom, a more open living room, a closed office, or an upper floor do not all react the same way. With a single wall head, it is sometimes difficult to achieve balanced comfort. With a DoubleZone heat pump - 2 zones - 2 heads, it becomes possible to better distribute the air and adjust the settings according to the actual use of the rooms.
The FREE MATCH R32 model from GREE also stands out for its flexibility. Depending on the chosen configuration, the outdoor unit can be combined with different capacities of indoor heads. This modularity allows the system to be adapted to the building’s reality, rather than imposing a standard solution.
The refrigerant R32, visible on the outdoor unit’s label, is one of the important features of this installation. It is used in several recent heat pump and wall air conditioner systems, especially to meet new expectations for efficiency and modern design. For customers in Montreal, Laval, Longueuil, the North Shore, and the South Shore, it is a criterion to consider when comparing models.
A wall-mounted installation: the right choice for this space
In this project in Longueuil, the outdoor unit was not placed directly on the ground. It was installed on a wall support fixed to the structure, with solid support points and anti-vibration pads. This choice was particularly relevant because the available ground space was limited and the facade already had several elements to work around: brick, existing ducts, electrical box, cables, and passage area.
A wall installation offers several concrete advantages:
- it better protects the unit against water, snow, leaves, and debris;
- it frees up floor space in narrow passages;
- it facilitates maintaining a stable level;
- it reduces the risks of displacement related to freezing and thawing;
- it allows for a cleaner finish when the ground is not suitable for a base;
- it improves access around the unit for certain HVAC maintenance interventions.
In a city like Longueuil, where many buildings have compact yards or tight side accesses, this type of installation is often preferable. However, the support must be well chosen, properly fixed, and adapted to the weight of the outdoor unit. A rough fixing can cause vibrations, noise, or premature wear.
In the photo, you can see that the unit rests on a stable metal structure, with blue pads at the support points. This detail helps limit the transmission of vibrations to the wall and improves acoustic comfort. This is not a decorative element: it is a technical decision that directly influences the quality of the installation.
The challenge of the brick wall and exposed pipes
Installing a GREE FREE MATCH R32 heat pump on a brick wall requires precision. Brick offers a solid surface, but it demands appropriate anchors and careful installation. The supports must be fixed in areas capable of bearing the weight of the unit without weakening the facade.
Another visible challenge in this installation is the routing of the pipes. The refrigerant lines come out of the brown line cover, then are directed to the outdoor unit with a neat and controlled grouping. In a 2-zone installation, it is not just a pair of pipes: each indoor head has its own connections, which makes line management more complex.
We paid special attention to several points:
Alignment of the line cover
The brown line cover was installed vertically against the brick. Its color matches well with the facade tones and helps make the pipe routing much more discreet than a set of exposed lines.
Protection of refrigerant pipes
The pipes must be insulated and protected against weather, UV rays, friction, and impacts. Damaged insulation can harm system efficiency and cause performance losses.
Managing the bends
The bends must be made neatly, without excessive kinks. A poorly bent pipe can restrict refrigerant flow or create weak points.
The separation of electrical components
The electrical supply must be installed according to best practices, with appropriate protections and clear organization. In the photo, the proximity of the electrical box and the outdoor unit is noticeable, which required careful coordination.
A 2-zone solution adapted to the real needs of the home
A DoubleZone heat pump is not chosen just because there are two rooms to treat. It must be selected based on area, insulation, sun exposure, air circulation, and usage habits.
For this project in Longueuil, our analysis focused on several elements:
- the two indoor zones to be served;
- the required capacity for each head;
- the length of the lines between the outdoor unit and the indoor units;
- the feasibility of routing the pipes;
- the most logical outdoor location;
- electrical constraints;
- future access for maintenance and service;
- the noise level perceived by occupants and neighbors.
The exact capacity of a GREE FREE MATCH R32 system varies depending on the installed combination: outdoor unit, indoor heads, and final configuration. Energy efficiency ratings, such as SEER2 and HSPF2 values, must also be validated according to the complete system. This is especially important for multi-zone systems, as the same product series can offer different performance depending on the combinations.
At AirGreen, we avoid approximations. We verify the actual configuration proposed to the client and explain the implications in terms of comfort, consumption, and potential subsidies.
An AirGreen project that emphasizes finish, safety, and durability
This installation in Longueuil clearly shows the importance of clean work in visible technical areas. A heating and air conditioning system must not only be functional. It must also be installed safely, durably, and consistently with the building.
The key steps of a successful HVAC installation
An installation like this follows a series of precise steps.
1. Validation of the outdoor location
Before fixing anything, we validate the clearance available around the unit. Air must be able to circulate freely in front of the device. An outdoor unit placed too close to an obstacle can lose efficiency and work harder.
2. Fixing the wall mount
The support must be perfectly leveled and securely anchored. On a brick wall, this step requires special attention, as the choice of fixing points affects the stability of the entire installation.
3. Installation of the outdoor unit
The unit is placed on the supports with precision. The anti-vibration pads are correctly positioned to limit vibrations and reduce noise transmitted to the structure.
4. Connection of the pipes
The refrigerant lines are carefully connected. For a DoubleZone heat pump, each connection must be clearly identified, tightly secured, and well insulated.
5. Technical checks
The commissioning includes the necessary checks to ensure the system is working properly. The invisible steps, such as vacuuming, leak tests, and operation validation, are essential to the machine's reliability.
6. Explanation to the client
Once the installation is complete, we take the time to explain to the client how to use the two zones, how to maintain the filters, and how to optimize the settings according to the seasons.
The concrete benefits for occupants
With this DoubleZone GREE FREE MATCH R32 heat pump, occupants now enjoy more precise comfort management. Each zone can be used according to current needs. One room can be cooled more during a hot period, while another can be kept at a more moderate temperature.
This type of system is especially appreciated for:
- personalized comfort in two spaces;
- reduction of temperature differences between rooms;
- effective air conditioning during hot periods;
- efficient supplementary heating during cooler seasons;
- quieter operation than a window air conditioner;
- simpler outdoor integration than with two separate units.
For a property in Longueuil, it is a solution that combines flexibility and discretion. The exterior remains clean, the unit is well positioned, and the lines are professionally organized.
Subsidies: an essential check for multizone systems
Many clients shopping for a wall-mounted heat pump or a wall-mounted air conditioner want to know if their installation qualifies for a subsidy. The answer always depends on the exact model, capacity, certifications, and criteria in effect at the time of the project.
For a GREE FREE MATCH R32 in DoubleZone configuration, the complete combination must be validated. The outdoor unit alone is not always enough to confirm eligibility. Both indoor units, their capacity, and the official system match must be verified.
AirGreen supports its clients in this step to minimize the risk of errors. We know that subsidy programs can influence the final decision, especially for owners in Montreal, Laval, Longueuil, the North Shore, and the South Shore. Our role is to help the client understand what is eligible, what documents must be kept, and how to present the information after installation when the applicable program allows it.
Mistakes to avoid on an installation like this
This project in Longueuil serves as a reminder of several common mistakes we see in some poorly planned installations.
Installing the unit too low
In Quebec, snow, ice, and defrost water must be taken into account. A unit installed too low can be more exposed to accumulation and splashes.
Neglecting vibrations
A wall mount without proper cushions can transmit vibrations to the building. On a brick facade or near a dwelling, this can become disturbing.
Leaving pipes unprotected
Exposed pipes age faster. A well-installed line cover improves aesthetics and protects technical elements.
Underestimating the complexity of a 2-zone system
A DoubleZone heat pump requires better planning than a single-zone system. Line lengths, sizing, connections, and commissioning must be done with precision.
Choosing a location just because it is easy
The easiest place for installation is not always the best for performance, noise, maintenance, or appearance. In this project, the chosen location allowed for balancing technical constraints with a clean finish.
Local expertise for Longueuil and the South Shore
AirGreen regularly operates in Longueuil, but also in Brossard, Saint-Lambert, Boucherville, Saint-Hubert, Montreal, Laval, on the North Shore and the South Shore. Each area has its particularities: townhouses, duplexes, condos, buildings with restricted rear access, brick walls, balconies, exterior stairs, and varying aesthetic requirements.
This local experience allows us to anticipate constraints before installation day. We know that an owner doesn’t just want an efficient machine. They also want a clean, durable, safe, and easy-to-maintain installation.
In this project, the result is clear: a securely fixed outdoor unit, well-directed pipes, a discreet line cover, and a configuration adapted to a 2 zones, 2 heads system. The project meets indoor comfort needs while respecting the building's outdoor environment.
AirGreen tips for a successful DoubleZone project
Before choosing a DoubleZone heat pump, we recommend paying attention to these points:
-
Have each zone evaluated separately
The needs of a bedroom, living room, or office are never the same. -
Validate the outdoor location before signing
The best model must also be able to be installed correctly on your building. -
Request a neat finish for the pipes
The line cover, alignment, and protection of the lines greatly influence the final appearance. -
Consider noise and vibrations
A wall mount must be done with the right supports and the right pads. -
Confirm subsidies according to the exact combination
For a multizone system, eligibility depends on the complete system. -
Plan maintenance from the start
The unit must remain accessible for cleaning, inspections, and future interventions.
A clean, efficient, and adapted result for Longueuil
This installation of a GREE FREE MATCH R32 DoubleZone heat pump in Longueuil clearly illustrates our approach at AirGreen: choosing a solution adapted to the building, installing the equipment with precision, and delivering an exterior finish that inspires confidence.
The installed system now allows managing two comfort zones with a single outdoor unit. The wall mount protects the device, the brown line cover blends well with the brick, the pipes are neatly organized, and technical access remains functional. For the occupants, the benefit is tangible: better temperature control, a more discreet solution, and an installation designed to last.