A clean and silent integration on a brick facade, designed for four-season comfort
At AirGreen , we work weekly in typical Montreal plexes. This project in Rosemont–La Petite-Patrie features a Sharp ZU1 series wall-mounted heat pump (R-32, Inverter) mounted on wall brackets under the eaves, with white capping and an accessible disconnect box . The client's goal: reduce heating bills, stay cooler in the summer, and benefit from discreet, reliable, and easy-to-maintain equipment.
Building context and client expectations
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Building : Brick duplex, narrow side yard, close neighborhood.
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Constraints : limit noise, preserve the aesthetics of the facade, protect the waterproofing membrane of the brick joints, guarantee sufficient clearance for snow and air flow.
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Expectations : efficient heating in Montreal winters, soft and consistent air conditioning for the main floor, clean and durable HVAC system .
The chosen Sharp solution: performance, sobriety and subsidy compatibility
Why Sharp ZU1 on this project
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Inverter compressor : fine power modulation, stable comfort and energy savings.
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R-32 refrigerant : better volumetric efficiency and reduced impact compared to R-410A.
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Plasmacluster : indoor air treatment technology (improved air quality).
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Extreme cold weather : maintaining capacity in Quebec climate, ideal for Montreal , Laval , Longueuil , North Shore and South Shore .
Design Note: The ZU1 range is the preferred option when looking for excellent performance/price ratio, low exterior noise levels and attractively finished front-side cowlings.
Eligibility for financial aid
Depending on the home's energy profile and the chosen configuration, a high-efficiency wall-mounted heat pump may be eligible for Quebec programs (e.g., the Rénoclimat energy assessment program and assistance related to efficient appliances). We assist our clients in preparing the file , checking the list of recognized models and optimizing the configuration to maximize savings.
Key installation steps (AirGreen timeline)
1) Controlled location and drilling
We approved the installation under the eaves, protected from runoff, with proper clearances for suction and blowing. The hole was drilled into a masonry joint to preserve the brick and avoid unnecessary mechanical stress. A careful vapor barrier and sealing ensure watertightness.
2) Installation on anti-vibration wall brackets
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Galvanized brackets sized for fan load and thrust.
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Blue anti-vibration pads under the sole of the outdoor unit to limit structural noise transmission.
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Height calculated to maintain sufficient clearance above snow accumulation and facilitate maintenance.
3) Clean refrigerated and electrical routing
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Refrigeration connections (insulated copper) and communication cable pass through a vertical white capping , ensuring an aesthetic finish and UV protection .
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Short line length (approx. 3-5 m): minimized load losses, faster response.
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Disconnect box installed just below the unit, within easy reach for maintenance, in accordance with good practice and safety requirements.
4) Condensate management
The drain is gravity- fed, protected and maintained with a regular slope. The outlet is positioned to avoid splashing onto the brick and prevent ice formation in winter. When required by the interior configuration, we offer silent condensate pumps with access hatch for maintenance.
5) Vacuuming, testing and commissioning
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Deep vacuum and nitrogen leak test.
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Controller settings (modes, speeds, instructions).
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Functional checks : intensity, pressures, insufflation/discharge temperatures, noise level, defrost management.
Technical points and finishes that make the difference
Respect for brick and aesthetics
The compact, straight path of the capping, the alignment of the supports, and the neutral color of the equipment blend naturally into the facade. The joint around the drilling is reworked with a trowel for a clean and durable finish.
Silence and comfort for the neighborhood
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Vibrations controlled thanks to the studs and the rigidity of the brackets.
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Directed blowing to direct the flow away from sensitive areas (terraces, paths).
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Low speed night mode recommended during periods of very calm.
Sustainability in Montreal's climate
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Ground and roof clearance : prevention of snow catching and suction of recycled air.
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UV protection of insulation and wiring by capping.
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Waterproof path to prevent water infiltration into the masonry.
Result: immediate comfort, optimized bill
From the moment it is commissioned, the customer benefits from efficient heating in cold weather and precise air conditioning in the summer. Inverter modulation allows the setpoint to be reached smoothly, while reducing operating costs . The outdoor unit remains discreet : the sand color and the installation under the eaves reduce the visual impact.
HVAC usage and maintenance tips (to maintain performance)
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Internal filters : monthly rinsing during periods of heavy use.
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Outdoor heat exchanger : gentle dusting at the beginning of spring; never bend the fins.
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Winter defrosting : Leave the unit working; do not turn off the power during cold, damp weather.
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Clearance : keep 60–100 cm free in front of the blowing facade.
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Annual AirGreen maintenance : checking pressures, intensity, electrical tightening, condensate drainage and condition of supports.
Common Pitfalls…and How We Avoid Them
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Drilling into the brick : we focus on the joint and apply a suitable sealant.
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Line too long : we optimize the route to limit losses and preserve seasonal yield.
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Insufficient height : our layouts incorporate snow history and service requirements.
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Badly placed disconnect box : always accessible and out of the way of runoff .
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Condensate management : strict slopes, discharge points far from traffic and masonry.
Why AirGreen for your HVAC installation in Montreal, Laval, Longueuil, North Shore and South Shore?
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Certified team mastering the specificities of Montreal plexes.
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Careful finishing : straight capping, clean holes, dimensioned supports, well-thought-out aesthetics.
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Grant support : assistance in choosing an eligible heat pump and preparing the application.
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After-sales service : parts, maintenance and usage advice throughout the equipment's lifespan.
Project Quick Facts
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Machine type : single-zone wall-mounted heat pump .
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Brand / Range : Sharp ZU1 (R-32, Inverter).
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Installation : wall brackets with anti-vibration pads, under the eaves.
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Route : vertical white capping , short lines (≈ 3–5 m).
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Electrical : disconnect box under the unit, direct access.
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Objective : four-season comfort, reduced consumption, controlled aesthetics.
And after?
We offer an annual or biennial preventative maintenance program . It extends the lifespan, preserves seasonal performance, and secures the manufacturer's warranty . For another floor or a difficult-to-treat room, we can install a second indoor head or a Sharp MultiZone solution while maintaining the same visual signature on the façade.
AirGreen responds quickly to Montreal , Laval , Longueuil , the North Shore and the South Shore . For a clear quote and precise layout, our technical team will travel to you, validate the clearances and submit a detailed proposal, ready for your work schedule.