A comfort improvement carried out with precision in a Montreal duplex
At AirGreen , each wall-mounted heat pump installation project is an opportunity to demonstrate our HVAC expertise and our knowledge of the residential characteristics of Greater Montreal. In this specific case, we were called upon to work on a duplex located in Rosemont–La Petite-Patrie , an area where there are many homes with thick load-bearing walls, medium ceilings and technical passage constraints typical of urban buildings.
Our client wanted to replace an aging wall-mounted air conditioner with a 12,000 BTU Sharp ZU1 heat pump , a model known for its energy efficiency and its ability to provide four-season comfort , even during harsh Quebec winters.
Key steps of installation
Assessment and preparation
Our technicians first conducted a thorough inspection of the interior wall to determine the ideal location for the new unit. The choice was made to install the wall-mounted unit high up, in the center of the main wall, for optimal air distribution throughout the living space. The thickness of the exterior wall required careful drilling to ensure a perfect seal and safe passage of the ducts.
Passage of pipes and wiring
The refrigeration connection was made with insulated copper pipes , carefully concealed in a discreet white capping matching the decor. This finish not only ensures aesthetics, but also long-lasting protection against humidity and temperature fluctuations.
The electrical wiring was connected directly to the existing panel, complying with the standards in force in Quebec and guaranteeing the safety of the installation.
Drainage management
To avoid any risk of water infiltration, we opted for gravity drainage . The inclination of the pipes was carefully adjusted to allow smooth evacuation of condensate to the outside, thus eliminating the need for an additional pump.
Commissioning and adjustments
Once the heat pump was installed, our technicians performed a pressure and leak test on the refrigeration lines. After a complete vacuum, the system was started up and calibrated to ensure maximum performance for both air conditioning and heating.
Advantages of the Sharp ZU1 heat pump
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12,000 BTU capacity : ideal for a main room or medium-sized home.
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High energy efficiency : eligible for certain provincial subsidies thanks to its heating performance down to -25°C.
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Quiet operation : increased comfort, particularly appreciated in apartment buildings.
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Compact and modern design : blends harmoniously into a residential decor.
Challenges encountered and solutions provided
One of the main challenges of this project was the limited space behind the partition, which made it difficult to run the ducts. Thanks to our experience, we were able to overcome this obstacle by using a fitted wall capping , guaranteeing both efficiency and aesthetics.
Additionally, as this was a duplex located in the heart of Montreal, managing the exterior access for the compressor required careful planning to minimize the impact on the neighbors and the rear facade . Our teams complied with all co-ownership rules and municipal standards during the installation.
Results obtained
The customer now benefits from a reliable heating and cooling system all year round. The Sharp ZU1 installed by AirGreen offers consistent thermal comfort , reduced energy costs and peace of mind thanks to the comprehensive manufacturer's warranty and our after-sales service.
Why choose AirGreen for your HVAC project in Montreal?
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Local expertise : we understand the realities of Montreal duplexes and triplexes.
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Turnkey service : from technical assessment to commissioning.
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Compliance with standards and subsidies : maximizing available financial aid.
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Satisfaction guaranteed : our customers benefit from personalized support and solutions tailored to their needs.
At AirGreen, each wall-mounted heat pump installation is designed to last and provide optimal comfort in all seasons.