Installation of a GREE CHARMO R32 Wall-Mounted Heat Pump in Auteuil, Laval – High-Efficiency Mini-Split Air Conditioner
Precise installation of a GREE CHARMO R32 wall-mounted heat pump in Auteuil, Laval. High-performance, quiet HVAC solution adapted to the climatic realities of the North Shore.
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A precise and discreet wall-mounted installation in a living space in Auteuil
At AirGreen, every HVAC installation is carried out with rigorous attention to detail, and this project in the Auteuil district of Laval is an excellent example. We recently installed a GREE CHARMO R32 wall-mounted heat pump, a high-performance mini-split air conditioner, in a single-family home requiring an efficient, quiet, and aesthetic solution.
Upon our arrival, we realized that the client was primarily looking for a compact solution, capable of efficiently air conditioning a main room while providing effective auxiliary heating for the transitional seasons. The challenge was to integrate the indoor unit into an already furnished space, with specific aesthetic and structural constraints.
A wall unit perfectly integrated into the interior environment
The project image clearly illustrates the precision of our work. The indoor unit is installed high up, near the ceiling, thus ensuring optimal air distribution throughout the room. We used a laser level (visible by the green line) to guarantee a perfectly straight installation — a detail that makes all the difference visually.
The protective film is still on the unit at the time of the photo, which attests to the cleanliness of the site and the care taken in the final delivery. The discreet digital display indicates the ambient temperature, contributing to intuitive use for the client.
Key installation points:
- Strategic positioning for uniform air distribution
- Precise alignment using a laser leveling tool
- Aesthetic integration with existing elements (window, furniture)
- Compliance with clearance recommendations from GREE manufacturer
Why choose the GREE CHARMO R32 for an installation in Laval?
The GREE CHARMO R32 wall-mounted heat pump is an excellent choice for homes on the North Shore, particularly in Laval, thanks to its reliability and energy efficiency.
Main technical features
Although the exact capacity is determined based on the thermal load calculation of each property, CHARMO R32 units are generally offered in sizes suitable for medium to large rooms.
Technical advantages:
- Eco-friendly refrigerant R32, more efficient and less polluting
- Quiet operation, ideal for living spaces
- Integrated heating and cooling modes
- Inverter technology for optimized energy consumption
- Precise temperature control
Adapted to Quebec's climatic realities
In areas like Auteuil in Laval, where temperature variations are significant, a wall-mounted heat pump like the GREE CHARMO allows for:
- Rapid cooling in summer
- Efficient heating during cooler periods
- Significant reduction in energy costs
Challenges encountered during installation and solutions provided
Each HVAC installation in Montreal, Laval, or Longueuil has its specificities. In this project, several elements required particular attention.
Space constraints and positioning
The unit had to be installed on a wall already occupied by a window and a piece of furniture. We therefore:
- Analyzed airflow to avoid any obstruction
- Adjusted the height to maximize performance
- Checked the wall structure for secure fastening
Refrigerant line passage
Another common challenge concerns the discreet passage of conduits connecting the indoor unit to the outdoor unit.
Our approach:
- Precise and clean wall drilling
- Use of discreet conduit covers
- Complete sealing to prevent any air or water infiltration
Commissioning and calibration
Once the physical installation was completed, we proceeded with:
- Checking electrical connections
- System evacuation
- Calibration of parameters for optimal performance
The importance of professional HVAC installation
Installing a wall-mounted heat pump is not just about mounting a unit on a wall. A poorly executed installation can lead to:
- Reduced performance
- Increased energy consumption
- Premature wear of equipment
At AirGreen, we emphasize:
- Compliance with manufacturer standards
- Use of precision tools
- Impeccable finish
Our teams regularly work in Montreal, Laval, Longueuil, on the North Shore and the South Shore, which allows us to perfectly understand local realities.
Practical advice for homeowners
Following this installation in Auteuil, here are some useful recommendations for future buyers of wall-mounted air conditioners or heat pumps:
Choose the right location
Poor positioning can hinder air circulation. It is essential to:
- Avoid direct obstacles
- Install the unit high up
- Ensure adequate distance from the ceiling
Do not neglect HVAC maintenance
Regular maintenance helps to:
- Maintain energy efficiency
- Extend the lifespan of the appliance
- Preserve indoor air quality
Call on qualified professionals
Installation by experts guarantees:
- Compliance with standards
- Optimal performance
- Peace of mind
An AirGreen achievement that reflects our expertise
This installation project of a GREE CHARMO R32 wall-mounted heat pump in Auteuil, Laval perfectly illustrates our approach: precision, cleanliness, performance, and customer satisfaction.
Every detail counts, whether it's the alignment of the unit, the choice of location, or the quality of commissioning. It is this rigor that makes AirGreen a benchmark in HVAC installation in Montreal, Laval, and Longueuil.
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.
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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).