A winter project under control: efficiency and precision above all
At AirGreen , we know that installing a wall-mounted heat pump requires rigor and expertise, especially in winter. This project in Boisbriand , on Montreal's North Shore , perfectly illustrates our methodical and meticulous approach. The client wanted an efficient heating and cooling solution for their condo, while maintaining a discreet exterior aesthetic.
The chosen brand: Lennox , renowned for the stability of its inverter systems and the reliability of its compressors even at low temperatures. Our mission: to install a single-zone wall-mounted system with an outdoor unit mounted on a raised support to withstand winter conditions.
Step 1: Site Preparation and Analysis
Before installing the heat pump, our team carried out a complete inspection of the facade and mounting structure.
The findings:
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The stucco wall covering required special anchoring to ensure a lasting hold.
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The space between the house and the side fence was narrow: it was therefore necessary to optimize the position of the unit to ensure good air circulation .
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The customer already had a dedicated 240V power supply , which made system integration easy.
We then defined a short refrigeration pipe path protected by an insulated conduit, ensuring both energy efficiency and discreet aesthetics .
Step 2: Installing the outdoor unit
The installation took place on a ceramic balcony floor , exposed to wind and snow. To prevent any ice accumulation or water infiltration:
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We mounted the Lennox heat pump on a galvanized aluminum support , set 40 cm from the ground .
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Anti-vibration feet have been added to reduce noise and extend compressor life.
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A stability test confirmed perfect seating despite the frost on the ground.
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Natural drainage has been checked to prevent ice from forming under the base in winter.
This installation allows the device to operate safely all year round , even when snow accumulates around it.
Step 3: Refrigeration connection and vacuuming
Once the fixing was complete, we proceeded to connect the refrigerant lines between the outdoor unit and the indoor module.
Our technicians have:
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Used precision insulated copper tubes to minimize heat loss.
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Performed a nitrogen leak test at 300 psi for 20 minutes.
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Creates a perfect vacuum to 500 microns using a double-stage pump.
This step ensures a perfectly sealed circuit, essential to the performance and longevity of any Lennox HVAC system.
Step 4: Electrical connection and calibration
The electrical connection was carried out according to the standards of the Canadian Electrical Code , with:
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An external safety circuit breaker accessible to the technician.
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A certified ground for surge protection.
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Calibration of the nominal current and verification of the soft start Inverter .
After switching on, the unit started quietly. The stable flow of hot air confirmed the optimal operation of the compressor and axial fan.
Step 5: Final Testing and AirGreen Quality Control
We let the system run for 45 minutes in heating mode. The measurements revealed:
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A blowing temperature of 46°C.
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A noise level below 38 dB, proof of anti-vibration stability.
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Reduced energy consumption compared to the customer's old electrical system.
The customer immediately noticed the even heat in his living space and the absence of noise, even when the compressor was running.
Why choose AirGreen for your Lennox installation?
A successful installation depends not only on the quality of the equipment, but also on the expertise of the team that installs it. At AirGreen, we guarantee:
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A certified installation that complies with the recommendations of the Lennox manufacturer.
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Careful integration respecting your facade and your acoustic comfort.
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Personalized monitoring including the first free performance check after 30 days of use.
Our technicians operate throughout Montreal, Laval, Longueuil, on the North Shore and the South Shore , even in the most demanding weather conditions.
End result: guaranteed performance and durability
This Lennox wall-mounted heat pump installed in Boisbriand now offers exceptional performance year-round, with Energy Star certified energy efficiency. Thanks to optimal positioning, perfect insulation, and precise calibration, the customer enjoys constant comfort and substantial savings on their electricity bills .
Another successful AirGreen project, where technical performance and attention to detail come together to offer lasting comfort to our customers.