Installation of Sharp wall-mounted heat pumps on wall brackets in Le Plateau-Mont-Royal
AirGreen installed Sharp wall-mounted heat pumps in Le Plateau-Mont-Royal, with outdoor units mounted on wall brackets. An efficient and durable solution, perfectly suited to urban brick buildings.
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In the Plateau-Mont-Royal neighbourhood, the brick buildings, narrow streets, and close proximity of properties necessitate precise and thoughtful installation choices. For this residential project, AirGreen installed Sharp wall-mounted heat pumps with outdoor units mounted on wall brackets , a solution perfectly suited to the dense urban context of the Plateau.
The main objective: to offer reliable thermal comfort in summer and winter , while respecting the space, noise and aesthetic constraints specific to this type of Montreal building.
System type installed: Sharp wall-mounted heat pumps
Based on the elements visible in the photo, these are clearly wall-mounted heat pumps (mini-splits) , each connected to its own compact outdoor unit. This type of configuration is very common in the Plateau, particularly in duplexes and triplexes where each unit wants to maintain its own heating and cooling system.
The outdoor units are installed high up on sturdy wall brackets , securely anchored to the masonry. This method is often preferred in urban areas for several reasons:
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avoid cluttering the floor,
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reduce the risks associated with snow, water and ice,
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limit the vibrations transmitted to the structure,
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keep the side aisles clear.
Brand used: Sharp (main reference)
The brand supplied for this project is Sharp , and it is used as the sole and official reference for analysis and installation. Sharp is known for its reliable, quiet wall-mounted heat pumps, well-suited to the Quebec climate, particularly in tight residential environments like those in the Plateau-Mont-Royal.
Model consistent with the observed installation
Although the nameplates are not legible in the photo, the compact shape of the outdoor units, their design and configuration correspond very well to Sharp ZU1 wall-mounted heat pumps .
The Sharp ZU1 (R-32) series is frequently used in this type of project, particularly for:
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typical power outputs from 12,000 to 18,000 BTU ,
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excellent energy efficiency
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stable heating performance during Montreal winters,
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Discreet operation, an essential criterion in urban environments.
Prominent installation details visible in the photo
1) Outdoor wall installation on metal brackets
The outdoor units are fixed using steel wall brackets , securely anchored to the foundation wall and masonry. This approach:
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protects devices against snow accumulation.
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facilitates the flow of defrost water,
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improves the overall durability of the system.
2) Optimized alignment and clearance
Each unit has sufficient clearance at the rear and sides , essential for:
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good air circulation,
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optimal performance,
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a future interview without complications.
In the narrow alleys and passages of the Plateau, this aspect is crucial to avoid problems of overheating or excessive noise.
3) Multi-unit configuration
The presence of two separate outdoor units suggests an installation serving more than one indoor space (for example, two dwellings or two independent zones). This approach allows for:
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independent management of comfort
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improved energy efficiency
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an equitable distribution of operating costs.
Why this solution is ideal for Le Plateau-Mont-Royal
The Plateau combines architectural charm with technical challenges. Sharp wall-mounted heat pumps installed on wall brackets perfectly meet these realities:
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no major modifications to the building ,
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respect for the exterior aesthetics,
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adaptation to confined spaces,
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Reliable performance even during periods of intense cold.
For many owners and occupants of the Plateau, this type of system quickly becomes the primary source of heating for much of the winter, with existing systems serving as a backup during periods of extreme cold.
The AirGreen approach for urban facilities
At AirGreen, each installation in a densely populated area like Le Plateau-Mont-Royal is approached with special attention:
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vibration and noise analysis,
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precise choice of location,
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secure anchoring in the masonry,
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clean and durable finish.
We know that in this type of environment, the quality of the installation is just as important as the machine itself . A properly installed, level, and unobstructed heat pump offers not only better performance but also increased longevity.
The result: comfort, discretion, and peace of mind
With these Sharp wall-mounted heat pumps, occupants now benefit from:
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providing stable thermal comfort in all seasons,
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of a silent and efficient system,
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of a solution perfectly integrated into the urban setting of the Plateau.
This is exactly what we at AirGreen are looking for: facilities adapted to the Montreal reality, sustainable and designed for long-term comfort.
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).