A well-integrated multizone HVAC installation in a brick outdoor environment in Île-Bizard–Sainte-Geneviève
In Île-Bizard–Sainte-Geneviève, in the west of Montreal, our AirGreen team completed a residential HVAC installation that highlights one of the major advantages of a DoubleZone heat pump: providing precise comfort to two distinct spaces while maintaining a clean, solid, and well-organized outdoor installation. The installed system is a GREE FREE MATCH R32, configured as 2 zones – 2 wall units, a particularly interesting solution for homes where a single indoor unit is not enough to effectively cover all needs.
The photo of this project shows the GREE outdoor unit installed on a brick wall, supported by metal wall brackets, with the connections protected and routed vertically inside a brown pipe cover that blends with the facade. This detail is important: in a residential area like Île-Bizard–Sainte-Geneviève, where many properties have brick walls, landscaped yards, and outdoor spaces used daily, the installation of a heat pump must be designed for both performance and appearance, maintenance access, and durability.
Here, the client wanted a solution capable of air conditioning and heating two zones of the house with a single outdoor unit. The DoubleZone configuration perfectly met this need. Rather than installing two independent systems with two outdoor compressors, we installed a single outdoor unit GREE FREE MATCH R32, connected to two indoor units. Result: less clutter outside, better room-by-room control, and a solution adapted to the realities of Montreal residences.
Why the GREE FREE MATCH R32 system was suitable for this project
The GREE FREE MATCH R32 series is designed for multi-zone installations. It allows connecting several indoor units to the same outdoor unit, with independent zone management. For a home in Île-Bizard–Sainte-Geneviève, this type of system is often very relevant when the rooms to be served are separated or when needs vary according to sun orientation, floor, occupancy, or daily use.
In this project, the priorities were clear:
- improve comfort in two distinct zones;
- avoid multiplying outdoor units;
- keep a clean installation on a brick wall;
- protect refrigerant and electrical lines;
- ensure good accessibility for HVAC maintenance;
- install a reliable system using refrigerant R32;
- offer a solution adapted to homes in Montreal, Laval, Longueuil, the North Shore, and the South Shore.
Choosing a GREE FREE MATCH R32 heat pump also allows benefiting from Inverter technology, which modulates power according to actual demand. This modulation is essential in a multi-zone configuration because the two heads do not always operate at the same pace. One zone may require more cooling in the afternoon, while another may need less power. The system adjusts its operation to maintain stable comfort without unnecessarily running at full capacity.
A wall-mounted outdoor unit: stability, clearance, and protection
One of the most visible aspects of this installation is the wall mounting of the outdoor unit. In the photo, the device is installed on brackets attached to the brick wall, with clearance under the unit. This choice offers several advantages in the Quebec context.
First, an outdoor unit mounted on the wall is better protected against snow accumulation on the ground. In areas like Île-Bizard–Sainte-Geneviève, where winters can be windy and snow can quickly pile up around houses, it is essential to maintain adequate clearance to allow the heat pump to breathe properly. A unit too close to the ground can become partially blocked, which harms its performance and can cause shutdowns or less efficient cycles.
Next, the wall bracket helps preserve floor space. In many yards, side passages, or outdoor storage areas, every square foot counts. Here, the wall installation keeps the space under the unit usable while placing the unit at a convenient height for inspection and maintenance.
Finally, anchoring into the brick requires careful execution. It is not enough to just screw a bracket to the wall. You must choose the right anchor points, distribute the load properly, limit vibrations, and ensure the wall can support the installation safely. Our team therefore assessed the structure, installed the appropriate supports, and checked stability before proceeding with the connections.
The brown vertical pipe cover: a discreet and durable finish
Another important element visible in the photo is the brown pipe cover installed vertically. This color choice helps better integrate the lines with the brick wall. An installation of a wall-mounted heat pump or a wall air conditioner necessarily includes refrigerant lines, communication wiring, and condensate drainage. When these elements are exposed or poorly protected, the installation can quickly lose its appearance and durability.
In this project, we used a pipe cover that protects the lines while maintaining a neat finish. This protection is essential for several reasons:
- it reduces exposure to UV rays;
- it protects the insulation from weather conditions;
- it improves the external appearance;
- it limits the risk of accidental damage;
- it facilitates the organization of connections;
- it allows for a cleaner reading of the installation during future maintenance.
On a brick wall, the color and alignment of the pipe cover are very important. A poorly aligned installation can unnecessarily draw attention. Here, the vertical conduit follows a clean path, resulting in a more professional look that better suits the building.
An installation designed around the real constraints of the building
Houses in Île-Bizard–Sainte-Geneviève often have different configurations than those found in the denser neighborhoods of downtown Montreal. Some properties have large lots, others have narrow side walls, landscaping, storage areas, or more complex outdoor access. Each installation must therefore be planned on site.
In this project, the outdoor unit was positioned to meet several essential criteria:
- good air circulation around the device;
- sufficient access for service;
- a reasonable distance from the indoor heads;
- a clean integration into the brick wall;
- protection of connections;
- a reduction of vibrations transmitted to the building;
- a height compatible with winter conditions.
The presence of an outdoor storage space near the unit also required special attention. A heat pump must not be obstructed by objects, tarps, bags, garden furniture, or stored materials. During commissioning, we always explain to the client the importance of maintaining sufficient clearance around the outdoor unit, especially in front of the fan.
The key steps of a successful DoubleZone installation with a GREE FREE MATCH R32
A multizone HVAC installation requires more planning than a single-head system. You have to think about the whole: the two indoor units, the line routing, the outdoor unit, drainage, electricity, leak tests, and commissioning. On this installation in Île-Bizard–Sainte-Geneviève, each step was carried out with the necessary precision to ensure reliable operation.
The analysis of the two zones to be served
Before confirming the system choice, our team evaluated the two indoor zones to be treated. In a 2 zones – 2 heads project, sizing must never be approximate. It is not just about choosing a total capacity and dividing it in two. Each zone has its own characteristics:
- area;
- ceiling height;
- insulation;
- sun exposure;
- number of windows;
- air circulation;
- daily use;
- distance from the outdoor unit;
- drilling and drainage constraints.
This analysis determines the optimal placement of the wall heads and ensures that the DoubleZone heat pump will meet the client's expectations. Poor indoor placement can reduce comfort, even with a good device. Conversely, a well-positioned head can significantly improve air distribution and temperature stability.
The passage of refrigeration and electrical lines
The connection between the indoor heads and the outdoor unit is one of the most important parts of a multi-zone installation. The refrigeration lines must be properly insulated, protected, and routed logically. Each head has its own connections, and the outdoor unit must receive all connections in a clear configuration.
In this project, the pipe cover visible in the photo groups and protects the lines. This approach limits risks related to weather and provides a cleaner finish. Bends, wall exits, and connections must be carefully made to avoid excessive stress on the pipes.
The electrical and communication wiring has also been integrated into the installation according to the system's needs. A GREE FREE MATCH R32 heat pump must be properly connected to ensure communication between the indoor units and the outdoor unit. Poorly identified or connected wiring can cause operational errors, especially in multi-zone systems.
Leak testing and vacuuming
The performance of a heat pump strongly depends on the quality of the refrigeration circuit. After the connections, our technicians carry out essential steps: leak testing, vacuuming, and system behavior verification. These steps are essential.
A properly performed vacuuming removes moisture and air present in the lines. This is especially important with modern systems using refrigerant. R32because the cleanliness of the circuit directly affects the reliability of the installation. Neglecting this step can cause performance, pressure, or durability issues.
At AirGreen, we pay special attention to these details because they are not always visible to the client, but they determine the real quality of the installation. A nice exterior finish is not enough: the system must also be technically flawless.
Starting up and zone-by-zone checks
Once the system is connected, commissioning allows us to validate the operation of the two zones. Each indoor head is tested individually, then the system is observed in combined operation. We specifically check:
- response of the remote controls;
- communication between units;
- airflow from the wall units;
- compressor behavior;
- absence of abnormal noise;
- condensate drainage;
- operational stability;
- the correct identification of zones.
For a client, this step is important because it turns the installation into a concrete solution. We explain how the system works, basic settings, best usage practices, and maintenance instructions.
Daily benefits for the client
A GREE FREE MATCH R32 DoubleZone heat pump provides much more flexible comfort than a single-zone system. In this home in Île-Bizard–Sainte-Geneviève, the client can adjust the two heads according to the actual use of the rooms. This helps avoid overcooling or overheating an unoccupied zone.
In summer, the system helps reduce humidity and maintain a more comfortable temperature in targeted areas. In the shoulder seasons and during some cold periods, the heat pump can also be used for heating, which improves comfort without relying solely on the home's main heating system.
This flexibility is especially appreciated in homes where occupants do not use all rooms in the same way. A bedroom, an office, a living room, or a family area can have different needs. The multizone system responds to this reality with greater precision.
Mistakes to avoid in a multizone installation
Our experience in Montreal, Laval, Longueuil, on the North Shore and the South Shore shows us that certain mistakes often recur in multizone projects.
The first is choosing the outdoor location just because it seems convenient. An outdoor unit must have good clearance, be accessible, and not be exposed to permanent obstructions. In the photo, the unit is installed high up, on wall brackets, with a clear air outlet. This is essential for performance.
The second mistake is neglecting the aesthetics of the lines. On a brick wall, poorly placed or poorly protected ducts can affect the home's appearance. Using a well-aligned pipe cover that matches the wall color greatly improves the final result.
The third mistake is underestimating the complexity of drainage. Each indoor unit produces condensate in cooling mode. The drainage path must be carefully planned, especially when units are far apart or located at different heights.
The fourth mistake is comparing quotes only by price. A multizone installation may or may not include certain elements: pipe length, wall brackets, pipe covers, electrical connections, finishing, condensate pump, outdoor protection, or access complexity. A detailed quote helps understand what is actually included.
Why AirGreen is often chosen for this type of project
Multizone installations require a combination of technical know-how, planning, and finishing. At AirGreen, we regularly carry out projects for wall-mounted heat pumps, wall-mounted air conditioners, and multizone systems in Greater Montreal. This local experience allows us to tailor our recommendations to the reality of Quebec buildings.
In Île-Bizard–Sainte-Geneviève, this installation demonstrates several aspects of our approach:
- choose a system suited to the actual need;
- install the outdoor unit in a durable location;
- protect the lines with a clean finish;
- take into account the Quebec winter;
- check every area before leaving the site;
- explain to the customer the basic use and maintenance;
- offer a solution designed to last.
We know that a customer is not just looking for a machine. They are looking for a real improvement in their comfort, a reliable installation, and a company capable of doing things right the first time.
Practical tips to extend the system's lifespan
After an installation like this, some good practices help preserve the performance of the GREE FREE MATCH R32 heat pump.
It is important to regularly clean the filters of the indoor heads. A clogged filter reduces airflow, increases system effort, and harms comfort. The outdoor unit must also be kept clear, especially in front of the fan and around the sides. Leaves, snow, objects stored too close, or debris can hinder air circulation.
Periodic HVAC maintenance also allows checking the condition of coils, drains, connections, and overall operation. For a multizone system, this maintenance is even more useful because it ensures that each head functions properly and that the outdoor unit responds well to the combined demand.
An installation that reflects the needs of homes in west Montreal
This installation in Île-Bizard–Sainte-Geneviève is representative of many projects we carry out in the west of Montreal. Clients want efficient solutions, but also clean, discreet, and adapted to their home. The GREE FREE MATCH R32 meets these expectations well thanks to its multizone flexibility and its ability to serve several spaces with a single outdoor unit.
The wall mounting on brick, the brown pipe cover, the organization of connections, and the accessibility of the outdoor unit show that every detail matters. A good installation is never improvised. It is based on a precise reading of the building, rigorous technical execution, and a finish that respects the property.
For owners in Montreal, Laval, Longueuil, the North Shore and the South Shore considering a DoubleZone heat pump, this project demonstrates the importance of choosing a team capable of managing the entire process: evaluation, system selection, installation, commissioning, and usage advice.