An exemplary exterior installation on a brick facade: stability, silence and winter performance guaranteed
The context: a Villeray plex with limited rear clearance
At AirGreen , we are called upon to modernize the comfort of many Montreal plexes . Here, the client wanted a compact and reliable solution to air condition the home in the summer and provide supplemental heating in mid-season, without cluttering the yard or balcony. Our recommendation: a recent generation Sharp wall-mounted heat pump ( R-32 refrigerant, Eco Inverter technology and Plasmacluster air treatment to limit cooking odors and allergens), installed with particular attention paid to mechanical stability , vibrations and the clearances required in a Montreal climate.
Outdoor installation: the right choices that make the difference
The condensing unit is mounted on sturdy galvanized wall brackets , anchored to the brick with suitable sealing. This approach offers several concrete advantages:
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Raised above ground level to stay above snow and runoff water;
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Free circulation of air at the intake and discharge, away from guardrails, side walls and plants;
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Easy maintenance (defrosting, battery cleaning and visual inspection).
We add high-density anti-vibration pads under the feet of the unit: they absorb micro-vibrations from the inverter compressor and prevent any transmission to the masonry. The result is noticeable inside: the installation remains silent , even during power ramps.
Electrical and refrigeration details: safety and performance
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Outdoor disconnect box installed within easy reach with protected conduits; circuit breaker sizing in accordance with manufacturer's specifications.
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Short refrigeration path between the indoor unit and the outdoor unit: less pressure loss, optimized seasonal efficiency and more precise commissioning.
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Slightly outwardly inclined drilling with waterproof caulking (closed-cell foam + seal) to prevent any infiltration of air or water and maintain the watertightness of the envelope.
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Finishing channel matching the facade to protect the insulation from connections, facilitate inspections and maintain a clean and durable aesthetic.
Why Sharp for this type of project?
The Sharp R-32 wall-mounted range is distinguished by:
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a continuously variable Eco Inverter compressor that adapts to the load, reducing on/off cycles;
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the Plasmacluster function which helps improve air quality by limiting certain particles and odors — a plus in homes with an open kitchen;
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a contained sound level and reliable electronics, well suited to Greater Montreal .
Inner integration (reminder of complementary work)
In the home, the wall-mounted head is placed high up , clear of the openings. The motorized shutters direct the flow along the ceiling, which evens out the temperature without direct air currents on the occupants. Condensates are evacuated by gravity , avoiding the use of a pump and reducing maintenance.
Performance and comfort throughout the seasons
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Summer : rapid increase in speed during hot periods; inverter modulation stabilizes temperature and humidity, even during heat waves.
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Mid-season : the heat pump covers a large part of the needs, which reduces the operating hours of the main system and operating costs .
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Winter : As a backup during moderately cold weather, with intelligent defrost management to maintain performance. The raised area and clearances around the unit prevent snow from accumulating on the battery.
Our quality controls upon commissioning
A sustainable HVAC installation begins with rigorous commissioning:
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Deep vacuum controlled to the micron meter;
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Nitrogen leak test and tightening torque verification;
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Temperature/pressure/intensity readings in cold and hot modes;
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Ventilation/shutter settings and customer reminders of proper usage (filter cleaning, exterior clearances, Auto/Dry modes).
Grants and Eligibility
High-efficiency R-32 wall-mounted heat pumps may be eligible for energy efficiency assistance programs in Quebec . We support our customers in Montreal , Laval , Longueuil , as well as the North Shore and South Shore for:
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pre-qualification (required power and performance),
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the constitution of the file (detailed invoices, photographic evidence),
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submission and follow-up with organizations.
Maintenance: sustaining performance
A well-maintained system costs less to operate and lasts longer:
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Internal filters : regular cleaning (more frequent if the kitchen is open).
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Annual inspection : condition of the external battery, electrical tightening, probes, condensate tray and defrosting check.
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Clearances : Keep the outdoor unit free of snow , leaves and objects, especially in winter.
Common Mistakes We Avoid
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Installation too low : exposure to frost and snow → loss of performance.
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Undersized brackets : vibrations, noise and masonry fatigue.
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Unnecessarily long refrigeration path : drop in COP and compressor overload.
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Neglected caulking : air/water infiltration and thermal bridges.
Our standardized method avoids these pitfalls and guarantees a clean, stable and compliant HVAC installation .
Result: a clean, quiet, winter-ready installation
The Sharp wall-mounted heat pump installed in Villeray–Saint-Michel–Parc-Extension offers precise comfort and appreciable acoustic sobriety . The galvanized brackets , anti-vibration pads , dedicated disconnection and optimized refrigeration path ensure long-term performance. The customer benefits from a discreet, efficient and easy-to-maintain system, supported by the AirGreen service throughout Greater Montreal ( Montreal , Laval , Longueuil , North Shore , South Shore ).
Frequently Asked Questions
Can I install the outdoor unit on a slab instead of brackets?
Yes, when the configuration allows it. On brick facades in urban areas, brackets are still ideal for clearing the device of snow and reducing vibration transmission.
What maintenance before winter?
Check the clearances , clean the external battery if necessary, ensure that the mounting is secure and that the disconnection is protected. An annual visit by an AirGreen technician is recommended.
What if I want to air condition a second room?
Depending on the configuration, we offer MultiZone solutions or the addition of a second wall-mounted heat pump , after checking the thermal load and the feasibility of the connections.
Want such a neat installation?
We size, install, and maintain your wall-mounted heat pump with the same high technical and aesthetic standards. AirGreen operates throughout Greater Montreal with controlled deadlines and clear and comprehensive subsidy support.