An HVAC installation designed for a home where every detail mattered
In Île-Bizard–Sainte-Geneviève, AirGreen recently completed a particularly interesting residential HVAC installation: a GREE FREE MATCH R32 DoubleZone heat pump, configured with 2 zones and 2 wall-mounted units, to offer better distributed comfort throughout the house while maintaining a clean and discreet visual integration.
This type of project represents exactly the kind of intervention where field experience makes all the difference. Installing a multizone heat pump is not just about fixing two wall units and connecting an outdoor unit. It requires analyzing the room configuration, the occupants' living habits, architectural constraints, ducting routes, condensate drainage, accessibility for HVAC maintenance, aesthetic protection of refrigerant lines, and the system's ability to maintain a stable temperature for both cooling and heating.
In this specific case, one of the indoor units was installed above a window, in a restricted space where precise positioning was crucial. The project photo clearly shows the GREE wall unit installed close to the ceiling, with a carefully concealed line run within a horizontal trim molding. This detail may seem simple, but it requires meticulous execution: when the space between the top of the window, the ceiling, and the side wall is limited, every centimeter counts to ensure performance, filter access, airflow clearance, and the final appearance.
Why the GREE FREE MATCH R32 was perfectly suited for this DoubleZone project
The GREE FREE MATCH R32 is a very interesting multizone solution for homeowners who want to cool and heat multiple spaces without multiplying outdoor units. In this installation in Île-Bizard–Sainte-Geneviève, the choice of a DoubleZone – 2 wall-mounted units configuration allowed for a clear need to be met: creating two independent comfort zones, each controlled according to its actual use.
Unlike a single-zone system, a DoubleZone heat pump avoids a common discomfort in homes where rooms do not all react the same way to heat, sun, insulation, or occupancy. A sun-exposed room may require more air conditioning, while another zone may remain comfortable with much lower demand. With two indoor units, the client gets smarter and more personalized control.
The tangible benefits of a 2-zone system
This installation offers several important benefits:
- Independent comfort per zone: each wall-mounted unit can be adjusted according to the desired temperature in its area.
- Reduction of temperature differences: particularly useful in homes with multiple floors, extensions, large windows, or rooms less effectively served by existing heating.
- Improved energy efficiency: the system can modulate its power according to actual demand instead of operating excessively.
- A single outdoor unit: an aesthetic and practical advantage, especially on properties where outdoor space is limited.
- Use of R32 refrigerant: a modern choice, increasingly present in recent HVAC equipment.
- Solution adapted to the Greater Montreal climate: an asset for homeowners in Montreal, Laval, Longueuil, the North Shore, and the South Shore looking for an efficient solution for summer and cold seasons.
A solution adapted to West Island homes
In Île-Bizard–Sainte-Geneviève, many residences have specific characteristics that directly influence the installation strategy: generous windows, extensions, open spaces, finished basements, upstairs bedrooms, or living areas facing the sun. For this reason, a generic approach is not enough. At AirGreen, we adapt each HVAC installation to the actual configuration of the house.
In this project, the choice of the GREE FREE MATCH R32 met a need for zoned comfort, but also an integration constraint. The client wanted a clean, functional installation, without unnecessary visual clutter. The indoor unit visible in the photo demonstrates this concern: the wall-mounted unit is placed in a strategic area to diffuse air efficiently, while the ducts are integrated into a discreet cover that follows the wall line above the window.
Precise indoor positioning above the window
Installing a wall-mounted unit above a window requires special attention. The available height must allow for:
- sufficient clearance for air intake;
- good diffusion into the room;
- access to filters for periodic cleaning;
- adequate slope for condensate drainage;
- a clean finish around cables, pipes, and drains;
- a solid, perfectly level installation.
In this case, our team had to work with a tight space between the ceiling and the top of the window. The goal was to maximize air diffusion without detracting from the room's aesthetics. The result is a sober, well-aligned installation that blends naturally into the interior environment.
This kind of detail is important, as a poorly positioned wall-mounted unit can lead to long-term problems: abnormal noise, water leakage, maintenance difficulties, discomfort due to direct airflow, or loss of efficiency. A good installation always starts with a good understanding of the space.
Line routing: a finish that protects performance
The photo also shows the protected routing of the lines to the side of the unit. This part of the installation is essential. Refrigerant lines, drain, and cables must be protected, well-positioned, and properly concealed when the configuration allows.
For AirGreen, finishing is not limited to appearance. A well-installed molding protects components, reduces the risk of damage, facilitates future maintenance, and contributes to the overall system's durability. In a multi-zone installation like this, line routing must be planned with even greater rigor, as two indoor units must be connected to the same outdoor unit.
Coordination between the two zones
A DoubleZone heat pump requires good technical coordination. Line lengths, height differences, outdoor unit capacity, and the needs of both zones must be evaluated before installation. A common mistake is to choose a multi-zone system based solely on the number of rooms, without considering the actual thermal load.
At AirGreen, we analyze, in particular:
- room orientation;
- the area to be covered;
- the insulation level;
- ceiling height;
- the number and type of windows;
- the use of each zone;
- duct routing constraints;
- the optimal location of the outdoor unit;
- heating and cooling needs.
In this project in Île-Bizard–Sainte-Geneviève, this analysis confirmed that a GREE FREE MATCH R32 DoubleZone configuration was appropriate to offer balanced comfort in the two targeted areas.
R32: a modern refrigerant for new installations
The mention R32 is important for homeowners comparing different models of heat pumps or wall-mounted air conditioners. This refrigerant is now increasingly used in recent equipment, particularly for its efficiency and its profile better suited to new generations of HVAC systems.
For the client, this means modern equipment, designed to offer good seasonal performance, with technology compatible with current expectations for energy efficiency. For AirGreen, it also implies an installation carried out according to best practices specific to systems using this type of refrigerant, with strict adherence to connection, vacuuming, leak testing, and commissioning methods.
Key steps of this AirGreen installation
Our team followed a precise work sequence to ensure a reliable result:
-
Validation of indoor locations
Each wall-mounted unit was positioned according to airflow, accessibility, and desired final appearance. -
Planning of line routing
The ducts were routed to limit visual impact while respecting the technical requirements of the system. -
Installation of supports and unit mounting
Wall plates were installed with precision to ensure a solid and durable alignment. -
Drilling and duct passage
Openings were made carefully to protect the structure and allow for adequate drainage. -
Refrigerant and electrical connections
Each connection was made according to applicable standards and industry best practices. -
Vacuuming and leak tests
Essential step to ensure system reliability and prevent performance losses. -
Full commissioning
Both zones were tested to confirm proper cooling operation, control response, and airflow. -
Client explanation
We took the time to explain the use of the wall-mounted units, recommended settings, and good maintenance habits.
Mistakes to avoid with a DoubleZone heat pump
Many homeowners contact us after receiving very different quotes for the same installation. The difference often comes from details that are not visible at first glance. A multi-zone HVAC installation must be conceived as a complete system, not as a simple addition of two wall units.
Here are some common mistakes to avoid:
- choosing a capacity without calculating the actual needs of the rooms;
- installing a unit too close to the ceiling without sufficient clearance;
- neglecting the drain slope;
- poorly planning line routing;
- installing the outdoor unit in a difficult-to-access location;
- forgetting future maintenance;
- using poor quality exterior or interior finishing;
- choosing a contractor who does not master multi-zone systems.
In the case of this installation in Île-Bizard–Sainte-Geneviève, these points were considered from the outset. This is what allows for a clean, durable, and comfortable result.
More stable comfort, room by room
After commissioning, the client quickly noticed the advantage of a two-zone system. The temperature can be adjusted according to the actual use of the spaces. One zone can operate more during the day, while the other can be used mainly in the evening or at night. This flexibility is one of the main advantages of a DoubleZone heat pump.
The modulating operation of the GREE FREE MATCH R32 also helps avoid sudden starts and overly short cycles when the installation is properly sized. The desired result is simple: more constant comfort, fewer temperature variations, and energy use better adapted to actual needs.
The importance of HVAC maintenance after installation
Once the installation is complete, HVAC maintenance becomes essential to preserve performance. The filters of the wall-mounted units must be cleaned regularly, especially during periods of intensive use. Periodic professional maintenance also allows checking the condition of coils, drains, connections, and the overall system operation.
For an installation like this, we recommend that the client:
- clean the filters according to usage frequency;
- avoid blocking the air outlet;
- monitor for any unusual noise;
- keep the outdoor unit clear;
- schedule regular professional maintenance;
- use operating modes consistently rather than constantly changing the temperature.
These simple habits directly contribute to the durability of the heat pump and the stability of comfort.
AirGreen expertise applied throughout Greater Montreal
This project in Île-Bizard–Sainte-Geneviève is part of a long series of installations carried out by AirGreen in Greater Montreal. We install similar systems in Montreal, Laval, Longueuil, on the North Shore, and the South Shore, in very varied contexts: condos, single-family homes, duplexes, triplexes, businesses, offices, and technical spaces.
Each sector has its specific characteristics. In Montreal, space and co-ownership constraints are frequent. In Laval, houses with extensions or open-plan rooms often require a more detailed zoning analysis. In Longueuil and on the South Shore, we regularly encounter projects where heating performance is as important as summer air conditioning. On the North Shore, large areas and multi-level configurations sometimes require well-sized multi-zone solutions.
This regional experience allows us to recommend tailored solutions, instead of applying a one-size-fits-all approach to all projects.
A discreet installation that respects interior aesthetics
One of the strengths of this installation is the discretion of the final result. The GREE wall-mounted unit, installed above the window, blends into the environment thanks to its positioning and the finish of the ducts. In a living room, this aspect matters a lot. A good HVAC system must be efficient, but it must also respect the appearance of the home.
At AirGreen, we place great importance on the finish. Lines must be straight, moldings well aligned, clean drillings, and units installed with care. This level of detail reflects our way of working: an installation must be technically sound and visually neat.
Why choose AirGreen for a GREE FREE MATCH R32 installation
A GREE FREE MATCH R32 heat pump is an excellent choice when it is well selected, properly sized, and correctly installed. Our role is to transform good equipment into a truly effective solution for the client's home.
AirGreen brings to each project:
- a personalized needs analysis;
- in-depth knowledge of heat pump and wall-mounted air conditioner systems;
- expertise in multi-zone installations;
- careful planning of line passages;
- a clean finish inside and out;
- rigorous commissioning;
- clear advice for use and maintenance;
- professional support before, during, and after installation.
In this project in Île-Bizard–Sainte-Geneviève, our team delivered a well-integrated, high-performance DoubleZone solution adapted to the reality of the house.
A project representative of modern HVAC installations
This installation clearly demonstrates the evolution of residential needs. Homeowners no longer just want to "add air conditioning." They are looking for a complete solution, capable of heating, cooling, saving energy, respecting the aesthetics of their home, and offering precise comfort according to the rooms.
The GREE FREE MATCH R32 DoubleZone meets this expectation when installed methodically. In this house in Île-Bizard–Sainte-Geneviève, the two wall-mounted units allow for flexible management of two distinct zones, while retaining a single outdoor unit. The unit visible in the photo illustrates the level of precision required in confined spaces: alignment, clearance, finish, line passage, and accessibility.
It is this type of project that best reflects our approach at AirGreen: concrete, well-thought-out HVAC solutions, adapted to the building and installed with attention to detail.
A well-installed DoubleZone heat pump means comfort noticed daily
The installation of this DoubleZone GREE FREE MATCH R32 heat pump in Île-Bizard–Sainte-Geneviève provided the client with an efficient, aesthetic, and practical solution to improve comfort in two areas of the house. Thanks to meticulous planning, a clean installation above the window, careful management of ducts, and complete commissioning, the system is ready to meet the heating and cooling needs of the household.
For homeowners in Montreal, Laval, Longueuil, the North Shore, and the South Shore, this project illustrates the importance of entrusting a multi-zone installation to a team that understands both the technical aspects and the reality of local buildings. A good heat pump is important. A good installation is even more so.