An exemplary winter installation: performance, silence and cleanliness around a garden-level condo
In the LaSalle area, our AirGreen teams installed a Sharp ECO Inverter wall-mounted heat pump ( R-32 – A2L refrigerant) for a condominium with outdoor access on one level. The work took place in snowy conditions, which allowed us to illustrate all the best practices for an HVAC installation designed for the Montreal climate : raised support, defrost water management, short refrigeration path and careful electrical integration.
Site reading and comfort objectives
The condo features a light-colored plaster facade, blue joinery , a small awning , and a concrete slab extending the threshold. In the background, a second condenser serves another apartment: cohabitation in a condominium therefore requires an impeccable acoustic and aesthetic approach. The client's objective: stable heating in winter , precise air conditioning in summer , controlled consumption , and as little noise as possible for the terrace.
Choice of location: efficiency and sustainability
Raised support and dedicated slab
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The condenser rests on an aluminum support fixed to an independent slab .
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Blue anti-vibration pads decouple the unit, reducing the transmission of vibrations to the structure.
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The ground clearance is deliberately generous in order to cross the snow line , facilitate the flow of frost and protect the group from splashes.
Short and protected refrigerated path
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The insulated copper connections and the communication/power cable exit directly from the wall to the right of the condenser: less than 1 m of visible bundle, minimized pressure losses and impeccable aesthetics .
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The single hole is caulked and sealed to prevent thermal bridges and infiltration.
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The indoor unit's condensate drain adopts a gravity slope towards the outside, eliminating the need for a pump and keeping the installation quiet .
Defrost water management
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In winter, the defrost cycle releases water at the base of the condenser; the dedicated slab and compacted gravel base limit the formation of ice around the base.
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We maintain peripheral clearance to promote dispersion, and we recommend light winter maintenance (breaking the ice crust if there is an accumulation).
Sharp ECO Inverter Platform (R-32 – A2L): Why choose LaSalle?
Even without specifying the exact reference, the Sharp ECO Inverter range currently delivered to Quebec operates on R-32 (class A2L) and benefits from very fine inverter modulation . The concrete benefits for a condo in Greater Montreal:
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Heating in cold weather with optimized defrost cycles and maintenance of good airflow.
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High seasonal efficiency and reduced GWP compared to R-410A, therefore lower environmental impact .
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Low exterior and interior noise level ; ideal when units are close to a relaxation area or bedroom window .
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Advanced indoor head-side air filtration with Plasmacluster Ion technology , popular in open-plan living room-kitchen areas.
AirGreen methodology: rigor at every stage
1) Pre-visit and sizing
We analyze orientation , glass area , insulation , occupancy habits and electrical control (dedicated circuit breaker, rating, grounding). This study determines the adequate BTU capacity and optimal location of the head.
2) Mechanical and refrigeration installation
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Anchors adapted to the substrate, level and squareness control of the support.
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Calibrated and lubricated flares , respecting the radius of curvature of the tubes.
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Deep vacuum , leak test and vacuum resistance before opening the service valves.
3) Commissioning and balancing
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Checking blown temperatures , intensities , superheating/subcooling .
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Orientation of the interior head flaps , adjustment of modes (heating, air conditioning, dehumidification, ventilation).
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Tips for using to avoid short cycles and maximize energy savings .
Results obtained on this project in LaSalle
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Superior thermal reactivity thanks to the very short refrigeration path .
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Quiet operation on the terrace and for the neighborhood, even during defrosting.
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Neat aesthetics : no unnecessary external chute, discreet sealing.
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Easy maintenance access : clearance under the unit, electrical disconnection within reach, simplified exchanger cleaning.
Maintenance: What we recommend
By the client (monthly to quarterly)
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Clean the inner head filters .
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Clear leaves/snow from around the condenser; never cover the unit.
By AirGreen (annual)
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Refrigeration inspection (pressures, temperatures, vacuum gauge if suspected).
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Cleaning the exchanger and checking the drain .
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Check electrical connections , update settings if necessary.
Regular maintenance preserves seasonal efficiency , reduces compressor wear and extends the life of the unit.
Compliance, warranties and subsidies
We carry out our work according to RBQ and CSA requirements, with compliant electrical declarations . Depending on the capacity and certified performance, this wall-mounted heat pump may be eligible for efficiency programs in Quebec. We support our customers in Montreal, Laval, Longueuil, North Shore and South Shore to verify eligibility , prepare documents (detailed invoice, serial numbers) and finalize the application .
AirGreen Best Practices to Remember for Condos and Plexes
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Raised support above the snow line, on independent slab .
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Shortest possible route between head and condenser.
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Gravity slope of the drain for reliability and silence .
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Drilling sealant compatible with plaster/brick to prevent cracks and infiltration.
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Respect for clearances around the condenser: performance and longevity guaranteed.
Your project in Greater Montreal
Whether you live in LaSalle, Verdun, Lachine, Montreal , Laval , Longueuil , on the North Shore or the South Shore , AirGreen designs and installs wall-mounted heat pumps adapted to your envelope and your uses. Our promise: four-season comfort , a clean and durable installation , and maintenance monitoring that protects your investment.