Installation of a GREE CLIVIA R32 Wall-Mounted Heat Pump – Air Conditioner – Mini Split in Saint-Constant on the South Shore
AirGreen installs a GREE CLIVIA R32 wall-mounted heat pump in Saint-Constant: efficient mini-split, meticulous indoor installation, and HVAC expertise for reliable comfort on the South Shore.
- City
- Region
- Equipment
- Brand
- Challenges
- Published
The job on one screen

The article, chapter by chapter
An indoor wall installation in Saint-Constant where precision was as important as performance
In Saint-Constant, on the South Shore, our AirGreen team performed the HVAC installation of a GREE CLIVIA R32 wall-mounted heat pump, a modern mini split system designed to offer both efficient air conditioning, effective supplemental heating, and stable daily comfort. This achievement is distinguished by a detail immediately visible in the photo: the indoor unit was installed in a wall space already marked by old openings, traces of previous work, and finishing constraints that required particularly methodical placement.
This type of project is very representative of what we encounter in many residences in Saint-Constant, Montreal, Laval, Longueuil, on the North Shore and the South Shore: clients want to modernize their comfort with a high-performance wall-mounted heat pump, but the building imposes its own realities. A wall may have already accommodated an old appliance, an old mechanical outlet, an electrical plate, an abandoned duct, or an opening to be redone. The challenge, therefore, is not just to install a new machine: the system must be integrated cleanly, functionally, and durably.
In this project, the GREE CLIVIA R32 was positioned high up, near the ceiling, to promote good air diffusion in the room. The discreet and sleek white indoor unit blends subtly into the wall. Around the appliance, however, there are construction marks and an older, lower circular opening on the wall, identified manually. This context required careful planning to ensure adequate conduit passage, stable installation, and mechanical finishing that met the expectations of a client who wanted to improve their comfort without multiplying compromises.
Why the GREE CLIVIA R32 was well-suited for this residential installation
The GREE CLIVIA R32 is a wall-mounted heat pump suitable for owners looking for an efficient, reliable, and relatively discreet system to heat and cool a living area. In a Saint-Constant residence, where summers can become humid and cold transition periods can last several weeks, this type of wall-mounted air conditioner with heating function is a very popular solution.
The choice of this model met several concrete needs:
- improving comfort in a main room or frequently used area;
- replacing or supplementing less efficient air conditioning solutions;
- reducing temperature variations in the space;
- benefiting from a wall-mounted system that takes up no floor space;
- taking advantage of Inverter technology capable of adjusting operation according to demand;
- installing a modern solution using R32 refrigerant;
- maintaining a sober interior appearance, with a well-aligned white wall unit.
Inverter technology is particularly interesting in this type of project, as it allows the heat pump to modulate its operation rather than constantly starting and stopping abruptly. For the customer, this results in a more consistent temperature, generally quieter operation, and better energy management.
An indoor unit installed in an already modified wall
The image of this installation tells an important part of the job. The indoor unit is placed high on the wall, under a ceiling molding, with sufficient distance to allow air intake from the top of the unit and diffusion from the front flap. This positioning is essential: a wall-mounted heat pump should not just be centered for aesthetics; it must also be placed to properly distribute air in the room.
Below the appliance, an old circular opening in the wall is visible. In many HVAC replacement or modernization projects, this type of element can come from an old duct passage, an old outlet, an old wall-mounted appliance, or a modified preparatory layout. In this project in Saint-Constant, our team had to contend with this reality without compromising the quality of the new installation.
What this type of wall demands from our technicians
An already drilled or modified wall requires special attention. Before fixing the indoor unit, we must check:
- the solidity of the mounting surface;
- the location of studs or supports behind the wall;
- the possible slope for drain evacuation;
- the path of the refrigerant lines;
- the distance between the indoor unit and the outdoor unit;
- the potential presence of hidden wires, pipes, or elements;
- the possibility of concealing or protecting the conduits;
- the final visual impact for the client.
In a quality HVAC installation, the indoor unit must be perfectly stable, level, and installed at a height that respects both the manufacturer's recommendations and the room's configuration. A poorly leveled unit can cause water drainage problems, unusual noises, or a neglected appearance. That's why our team takes the time to measure, adjust, and validate each step before commissioning.
The importance of positioning for indoor comfort
The positioning of the wall unit is one of the most important aspects of a wall-mounted heat pump project. In the photo, the unit is placed high, which allows the conditioned or heated air to spread more efficiently throughout the room. This height also promotes better air circulation, especially when the room has obstacles, angles, or areas where the temperature tends to vary.
In homes in Saint-Constant and on the South Shore, we often find configurations with open spaces, standard ceilings, load-bearing walls, old divisions, or successive renovations. It is therefore important to avoid installations made solely according to the shortest path. The correct location depends on several factors:
- the area where occupants spend the most time;
- the natural direction of air flow;
- the presence of doors, windows, and corridors;
- sun exposure;
- building insulation;
- external constraints for the condenser unit;
- the possibility of easily maintaining the appliance.
In this case, the indoor unit was installed to remain discreet while maintaining good diffusion efficiency. The result is an accessible, well-positioned system adapted for daily use.
R32 Refrigerant: A Key Component of Recent Systems
The GREE CLIVIA R32 uses R32 refrigerant, now very common in new generations of mini split systems. For customers, this mention might seem technical, but it's important. It highlights that installing a modern heat pump requires precise skills, appropriate tools, and a good understanding of commissioning procedures.
At AirGreen, we never consider a wall-mounted air conditioner installation as just a simple wall-mounting job. The refrigerant circuit is at the heart of the system's performance. Connections must be clean, leak-free, and tested. Vacuuming must be performed correctly. Communication between the indoor and outdoor units must be validated. Condensate drainage must be reliable.
An error at any of these steps can reduce the appliance's lifespan, affect its efficiency, or cause avoidable service calls. Our approach is therefore to treat each installation with the same level of rigor, whether it's a house in Saint-Constant, a condo in Longueuil, a multiplex in Montreal, a residence in Laval, or a project on the North Shore.
An installation designed for the customer, not just for the appliance
In this project, the client wanted a reliable comfort solution, but also a clean installation despite the existing condition of the wall. This is an important point: many clients hesitate to install a wall-mounted heat pump because they fear that the work will be too visible, that the conduits will be poorly integrated, or that the appliance will seem added without consideration.
Our role is precisely to avoid this impression. We analyze the space, discuss the constraints, propose the best possible route, and install the appliance in a way that respects the use of the room. The presence of an old wall opening should not become an obstacle to the performance of the new installation. It simply had to be integrated into the overall planning.
Important steps of the project
For this GREE CLIVIA R32 project in Saint-Constant, our team followed a methodical sequence:
- Evaluation of the indoor location and validation of the installation height.
- Verification of possibilities for passage to the outside.
- Preparation of the wall mounting plate.
- Installation of the indoor unit with precise leveling.
- Passage of refrigerant lines, drain, and communication wiring.
- Connection with the outdoor unit.
- Vacuuming and leak checks.
- Commissioning and functional tests.
- Explanation of main functions to the client.
Each step influences the final result. A successful HVAC installation relies not only on the brand of the machine; it also relies on the quality of execution.
The concrete advantages of a GREE CLIVIA R32 wall-mounted heat pump
The GREE CLIVIA R32 wall-mounted heat pump offers several practical advantages for homeowners in Saint-Constant and the greater metropolitan area.
More stable comfort
Thanks to compressor modulation, the unit can adjust its capacity according to actual needs. This helps maintain a more constant temperature, with fewer unpleasant variations.
Efficient air conditioning during hot periods
Summers on the South Shore can be heavy and humid. A well-installed wall-mounted air conditioner cools the space much more comfortably than a portable unit or a window air conditioner.
Useful supplemental heating
A heat pump can contribute to heating for a good part of the year, especially during mid-season. It can help reduce reliance on certain existing systems, depending on the building's configuration and the client's habits.
A discreet installation
The indoor unit is sober and compact. In this project, its white finish blends well into the wall, despite visible traces of work around the space. Once the wall finishes are completed by the owner or an interior finishing specialist, the appliance maintains a minimal visual presence.
A solution adapted for renovated homes
The photo clearly shows that the wall had already been worked on. For a house that has undergone modifications, renovations, or old installations, a mini split system can often be successfully integrated, provided the installation team knows how to adapt.
Mistakes to avoid during an indoor wall installation
This realization in Saint-Constant also serves as a reminder of several common mistakes that homeowners should avoid when planning the installation of a wall-mounted heat pump.
Choosing the location based solely on appearance
An appliance may seem better centered on a wall, but be ineffective for air distribution. The location must be chosen based on performance, air circulation, and technical access.
Installing the unit too close to the ceiling
A wall unit needs space to draw air from above. If installed too close to the ceiling, its performance can be affected. In this project, the space was evaluated to maintain functional clearance.
Neglecting the drain slope
Condensate water evacuation is essential. An incorrect slope can cause backups, leaks, or wall damage.
Ignoring the condition of the wall
A wall that has already been drilled or marked must be inspected. It must be ensured that the fastening is solid and that the conduits can pass without creating additional problems.
Relying only on price
A less expensive installation can hide compromises: poor leveling, insufficient fastening, poorly protected conduits, approximate finish, or incomplete commissioning. In the field of HVAC, these details can make all the difference.
Subsidies, energy efficiency and AirGreen support
Depending on the exact model, installed capacity, current criteria, and programs available at the time of purchase, some wall-mounted heat pumps may be eligible for energy efficiency subsidies. At AirGreen, we help our customers understand the steps to follow, the required documents, and important information to retain after installation.
For homeowners in Saint-Constant, Montreal, Laval, Longueuil, on the North Shore and South Shore, this support is invaluable. Programs can evolve, requirements can vary, and it's important to carefully check the eligibility of the chosen model before making a final decision.
Our team provides the necessary documents once the installation is complete, including invoice information, the installed model, and available technical details. This support is part of our approach: we want the client to benefit not only from a good installation but also from a clear and well-managed experience.
AirGreen on the South Shore: expertise adapted to local realities
Our experience in the Saint-Constant region and on the South Shore allows us to better understand the constraints of local residential buildings. Some neighborhoods have older homes, others have recent constructions, condos, semi-detached houses, or renovated properties. Each building imposes different decisions.
We have carried out similar installations in Longueuil, Brossard, Candiac, La Prairie, Montreal, Laval, and on the North Shore, each with its own challenges: brick walls, difficult outdoor access, units to be installed on balconies, conduits to protect, co-ownerships with strict requirements, or limited interior spaces.
In the case of this GREE CLIVIA R32 in Saint-Constant, our expertise was especially useful in dealing with an already modified interior wall and in installing the unit in a location that promotes comfort without complicating the use of the room.
A GREE CLIVIA R32 installation in Saint-Constant carried out with method and attention to detail
This installation of a GREE CLIVIA R32 wall-mounted heat pump in Saint-Constant demonstrates that the success of a mini-split project depends as much on understanding the building as on choosing the equipment. The indoor unit, placed high on the wall, had to be integrated into an existing environment marked by previous work. Our team therefore focused on stability, leveling, air circulation, conduit passage, and the reliability of commissioning.
For homeowners considering the installation of a wall-mounted air conditioner or a heat pump in the greater Montreal area, in Laval, in Longueuil, on the North Shore or South Shore, this project shows the importance of calling on a team capable of managing technical details as well as the actual constraints of the worksite.
At AirGreen, we install each system with a personalized, rigorous, and transparent approach, so that the customer benefits from lasting comfort and a well-thought-out installation from the start.
The job tools
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
Conversion: 1 W = 3.412 BTU/h. An indication, not a load calculation: baseboards and furnaces are often stronger than the real need, and they can stay as backup. AirGreen confirms the capacity on site.
How the job unfolds
The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.
We look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
Model, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
Floors and furniture protected, wall plate position marked level, wall opening located.
A single opening, with the slope the drain needs to flow outside.
Set on a stand raised above the snow, with the clearances the manufacturer requires.
Connected, insulated and protected. The opening is then sealed against water, cold air and insects.
A dedicated circuit and an accessible disconnect near the outdoor unit.
Leak test, vacuum, then start-up and a check of heating and cooling.
Remote, modes, filters: we show you the essentials before we leave.
- The on-site estimateWe look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
- The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
- Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
- The wall openingA single opening, with the slope the drain needs to flow outside.
- The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
- Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
- The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
- Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
- The walkthroughRemote, modes, filters: we show you the essentials before we leave.
What we check on a job like this one
Each number is a point we check on site. Switch between summer and winter to watch air and heat move.
In summer, the outdoor unit rejects the house's heat outside.
Generic illustration of this type of installation, not a survey of this job site. Tap a number.
Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.
The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.
Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.
A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.
The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.
On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.
The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.
Is your home ready?
Check what applies at your place. A "no" is not a refusal: it is what we sort out during the estimate.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
What to do, season by season
Three habits per season for this unit. They take a few minutes and prevent many calls.
- Clean the indoor unit's filters.
- Clear leaves and debris left on the outdoor unit by winter.
- Test cooling before the first hot days.
- Clean the filters more often when the unit runs a lot.
- Keep plants away from the outdoor unit.
- Check that no water drips from the indoor unit.
- Rake the leaves around the outdoor unit.
- Test heating before the first cold days.
- Book periodic maintenance before winter.
- Keep snow away from the stand and the front of the unit.
- Let the unit defrost: it is normal.
- Never hit the ice on the fins; call us if the unit stays iced up.
The right pages, at the right time
Four statements: true or false?
It all comes down to details you have just seen.
1. In heating mode, the outdoor unit can produce water.
During defrost cycles. That water must drain away without forming ice.
2. You pick the capacity with a simple square-footage rule.
Windows, insulation, orientation and how the room is used all count. Capacity is chosen on site.
3. A multi-zone connects several indoor heads to a single condenser.
One head per room, all on the same condenser. Each room keeps its own temperature.
4. The disconnect can sit behind the patio furniture.
It must stay accessible: it is what shuts the unit off for service.
0 / 4 right answers
What people ask us about this kind of work
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
Where does the outdoor unit go?
Are there grants?
Do I need a permit?
How cold can it heat?
How much can I save?
How is the LogisVert assistance calculated?
Is it noisy?
The outdoor unit is covered in ice: is that normal?
Does AirGreen hold the required licences?
Is the estimate free?
No question matches. Write to us: we answer.
More jobs to see, near you
By town, by equipment or by region: browse more than 4,700 published projects.
Each dot: a town where AirGreen has published projects. The glowing dot: this job.
An on-site estimate, the right capacity, the right equipment.
The on-site estimate is free and the quote follows within 24 hours.
Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).
