A clean and efficient project by AirGreen: four-season comfort, neat aesthetics and lasting performance
Client background and objectives
In Chomedey, Laval , a homeowner wanted a compact HVAC solution to provide supplemental heating in the mid-season and air conditioning in the summer, while reducing his energy bill. His specifications were clear: a reliable, quiet, wall-mounted heat pump capable of operating in cold weather, with an aesthetic installation that respected the integrity of the brick facade and limited long-term maintenance.
After a thermal assessment of the main room and peak loads, our team selected a Sharp Eco Inverter ( Plasmacluster technology for air purification) in a single-zone configuration. This choice balances efficiency , silence and air quality , with an excellent cost-benefit ratio for a Laval residence.
Why the Sharp Eco Inverter ?
Sharp is known for its wall-mounted appliances with inverter compressors and sophisticated electronics. Customer benefits include:
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High seasonal efficiency (next generation SEER/HSPF) and new-age refrigerant reducing carbon footprint.
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Low temperature heating function adapted to the climate of Greater Montreal (ideal for mid-season and as a backup to the main equipment).
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Plasmacluster technology : ionization which helps reduce allergens and odors, a plus for indoor air quality .
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Very low noise level , both inside and outside.
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Reliability and rapid availability of parts through our regional supply chains.
Key steps in HVAC installation
1) Installation of the outdoor unit
We mount the Sharp Eco Inverter condenser on sturdy wall brackets , clear of the ground for protection against snow and splashes. Anti-vibration pads limit the transmission of vibrations to the brick wall. The installation respects the necessary clearances for ventilation and service .
2) Management of refrigeration connections and drain
The horizontal run is maintained at low pressure drop and protected by white capping (technical trunking) ensuring both aesthetics and durability . The total length of the line-set (insulated copper + communication cabling) is optimized for the factory refrigerant charge.
The condensation drain is managed by gravity to the external discharge point with a controlled slope, in order to avoid stagnation and frost.
3) Power supply and safety
Near the unit, we install a code-compliant outdoor disconnect box , allowing for local disconnection during maintenance. The dedicated circuit, sized according to the heat pump's rated amperage, is protected at the main panel and marked for rapid response.
4) Drilling, sealing and finishing
The through drilling is executed with a controlled angle, sheath and putty for airtightness. Inside, the wall head is carefully leveled , the free field for air intake/insufflation is respected, and the whole integrates neatly into the decor.
Result: immediate comfort and impeccable facade
The customer benefits from rapid cooling in the summer and efficient heating in the fall and spring, all with a discreet noise level . The facade remains neat thanks to the white capping which guides the connections to the condenser without visible cables. The steel brackets protect the equipment from snowdrifts and facilitate winter maintenance.
What we systematically optimize on this type of project
Sizing and choice of power (BTU)
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Calculation of thermal loads in the area to be served (orientation, windows, insulation, occupancy).
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Select a consistent BTU capacity : powerful enough for peaks, without oversizing that would cause short cycles and reduced dehumidification.
Cold weather performance
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Checking heating capacity curves to ensure useful watts when the temperature drops.
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Recommendation of a backup strategy if the mid-winter load exceeds the profile of a wall (coordination with existing central system if present).
Silence and vibrations
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Anti-vibration pads , torque tightening, screw pitch control on the supports, and resonance test at different compressor speeds.
Air quality and hygiene
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Plasmacluster spotlight on the indoor head, HVAC maintenance reminder: filter cleaning, drain check, evaporator dust removal.
Longevity and aesthetics
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Compliant bending radii on copper, continuous closed insulation, nitrogen brazed connections, leak test followed by deep vacuum (<500 microns before load release).
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UV trunking and stainless steel screws for a facade that ages well .
Daily usage tips
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Keep the remote control within range and use the eco modes : the inverter compressor excels in stable operation .
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Set a realistic target temperature (e.g. 23–24°C in summer) to avoid sudden changes.
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In winter, clear the exterior air intake of snow and schedule maintenance in the spring: consistent performance and controlled energy bills.
Recommended HVAC maintenance
Annual maintenance extends the life of the heat pump and maintains efficiency :
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Cleaning the filters and the internal exchanger.
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Checking the drain (slope, purging, absence of algae).
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Inspection of fittings , insulation and capping .
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Electrical control (terminal block, currents, relays, disconnection ).
AirGreen offers flexible maintenance plans for residences in Montreal , Laval , Longueuil , North Shore and South Shore .
Grants and Eligibility
New generation high-efficiency, refrigerant wall-mounted heat pumps may be eligible for certain provincial or local programs. We confirm eligibility on a case-by-case basis (equipment characteristics, low-temperature performance, installation criteria) and guide the customer through the paperwork to maximize available incentives.
Challenges specific to a brick facade… and our solutions
Drilling management
Brick requires clean drilling with precise coring, use of sleeves to avoid copper friction and guarantee watertightness . We seal with exterior/interior compatible products to prevent infiltration and thermal bridges .
Winter protection
The raised installation on brackets prevents snow burial. The rear and side clearance promotes good defrosting in heating mode.
Visual integration
The white capping follows a simple, horizontal line; it protects the connections against UV rays and provides a clean finish that harmonizes with the pale brick and textured base.
What the customer gains, concretely
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Immediate 4-season comfort in the targeted living space.
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Energy savings thanks to the inverter compressor.
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Improved air quality with Plasmacluster technology .
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Protected and aesthetic facade thanks to the capping and well-positioned brackets .
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Peace of mind : certified installation, disconnect box within reach, easy service access.
Best practices for a lasting mural
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Avoid obstructing the air outlet of the outdoor unit (containers, vegetation).
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Allow at least 30 cm of clearance around the chute for work.
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Monitor at the start of each season: abnormal frost , unusual noises , drain flow .
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Entrust HVAC maintenance to a professional: warranty preserved, increased safety.
AirGreen: field experience at the service of your home
Our teams work every week in Laval , on the island of Montreal , the North Shore and the South Shore , with a constant focus on site cleanliness , compliance with codes and after-sales follow-up . Each project is documented: thermal loads, voids , leak tests , photos of finishes and initial settings. It is this level of requirement that ensures efficient and durable installations.
Want the same result at home?
Whether you are looking for a wall-mounted heat pump , a MultiZone , a central system or an air exchanger , we advise you on the brand , BTU capacity , location and potential subsidies .
AirGreen travels quickly to Montreal , Laval , Longueuil , the North Shore and the South Shore for a free quote and complete support.
Service keywords : heat pump , wall-mounted air conditioner , HVAC installation , HVAC maintenance , Montreal , Laval , Longueuil , North Shore , South Shore , Sharp Eco Inverter , Plasmacluster .