An outdoor installation on wall brackets designed to last and perform in Greater Montreal
At AirGreen , we put reliability at the heart of every HVAC installation . In this project in Saint-Léonard (Montreal) , we installed the outdoor condenser of a Gree wall-mounted heat pump – new generation R-32 on sturdy wall brackets , under the eaves of a brick house. The system was designed to offer 4-season comfort , controlled acoustics and simple HVAC maintenance , while respecting local climatic and architectural constraints.
Client background and objectives
The accommodation features a yellow brick facade, sliding windows and a perforated aluminum eaves . The owner wanted:
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efficient cooling in summer without using a window air conditioner;
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a stable heating supplement in mid-season, in order to save on the electric baseboard;
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discreet integration into the facade and maximum snow clearance in winter;
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a noticeable reduction in noise in adjacent rooms and among neighbors.
The solution chosen: Gree wall-mounted R-32 heat pump (capacity sized by us according to the interior volume, orientation and insulation), with condenser on wall supports and very short refrigeration path to limit losses and facilitate maintenance.
Why Gree in R-32 for this type of housing?
Gree's R-32 range meets the needs of Montreal homes:
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R-32 : better performance/charge ratio than R-410A and reduced impact;
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Latest generation inverter : fine modulation, setpoint stability and low noise level ;
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Cold weather operating range , compatible with Greater Montreal winters when combined with the appropriate indoor unit;
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Effective dehumidification in summer, very popular in brick dwellings;
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Easy maintenance and direct access to service components.
These characteristics result in low operating costs and consistent comfort without sudden variations.
Condenser placement: technical choice and advantages
We installed the condenser high up , under the eaves, on galvanized brackets :
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Natural protection against snow, driving rain and falling ice;
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Ground clearance that prevents snow from accumulating around the device and facilitates snow removal;
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Limited vibrations thanks to anti-vibration pads on the plate and controlled tightening;
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Improved acoustics : elevation and setback from openings reduce noise propagation inward;
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Shortened refrigeration path : The wall drilling is located in close proximity to the indoor unit, which reduces the length of copper, improves performance and simplifies diagnostics.
The communication and power wiring are grouped together in a discreet, UV-resistant protective sheath . The insulated refrigerant lines are tied and protected over the entire exposed section. The condensate drain is designed for gravity flow ; the layout prevents any drips in the passage areas.
Key steps in AirGreen installation
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Structural inspection of the brick and identification of anchors. Installation of brackets with suitable fixings (mechanical anchors), checking of level and center distances for ventilation.
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Drilling on a slope and installing a watertight bulkhead for the refrigeration lines, cable and drain. Careful waterproofing on the interior and exterior sides.
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Refrigeration connections with calibrated flares, torques checked by dynamometer. Flare protection and continuous insulation up to the tappings.
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Deep vacuum , nitrogen leak test and stabilization; validation of blowing pressures and temperatures at commissioning.
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Condensate management : extended test in cold mode to confirm gravity drainage .
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Finishing : selective painting of anchor screws if required, finishing sheath matching the facade, standard clearances around the device.
Observed results and benefits for the occupant
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Rapid cooling of main rooms, even in the late afternoon;
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Daily acoustic comfort , outdoor fan almost inaudible at moderate speed;
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Energy savings in summer compared to window units and reduced use of baseboards in mid-season;
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No ground disturbance for the maintenance of the surroundings, paths or garden.
HVAC Maintenance: Our Recommendations
To maintain performance:
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Cleaning the indoor unit filters every 2 to 4 weeks during periods of use;
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Annual inspection by our technicians: exchangers, electrical tightening, drains , refrigeration control;
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Maintaining minimal clearance around the condenser (branches, objects) to ensure convection ;
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In winter, avoid any obstruction by blown snow despite the protection of the eaves.
Regular HVAC maintenance ensures the longevity and seasonal performance of the heat pump.
Grants and Eligibility
Depending on the chosen extreme cold configuration and the certified performance of the indoor unit/condenser combination, the installation may be eligible for certain energy efficiency programs in Quebec. We assist our clients in Montreal, Laval, Longueuil, the North Shore, and the South Shore in preparing the parts (model and serial numbers, proof of installation, photos, and invoices) and in the administrative process when the technical criteria are met.
Pitfalls avoided on this site
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Ground-mounted device exposed to snow banks: the wall bracket option eliminates this risk.
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Refrigeration lines too long : installation close to the interior head to maximize efficiency .
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Transmitted vibrations : suitable pads and tightening, installation on load-bearing wall.
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Recirculated air discharges : clearance under the eaves respected so as not to disrupt heat exchange.
What the AirGreen approach changes
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Precise diagnosis of the location before any installation.
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Neat aesthetics : short paths, finishing sheath and visual aligned with the facade.
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Documentation provided to the customer: instructions for use, maintenance and commissioning records.
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Local after-sales service covering all of Greater Montreal .
Conclusion
This Gree wall-mounted heat pump installation (R-32) in Saint-Léonard illustrates a sustainable and practical design: condenser on brackets protected from the elements, optimized lines, quiet acoustics and simplified HVAC maintenance . The home gains in comfort all year round and in energy efficiency , with an integration perfectly adapted to Montreal buildings.
AirGreen supports your heat pump , wall-mounted air conditioner and HVAC system projects in Montreal, Laval, Longueuil, on the North Shore and the South Shore . We size, install and maintain reliable and economical solutions that respect your home and your budget.