A Sharp ZU1 heat pump installation for four-season comfort in the heart of Montreal
In a typical duplex in the Rosemont–La Petite-Patrie neighborhood, our AirGreen team recently completed the installation of a Sharp ZU1 wall-mounted heat pump . This project perfectly illustrates our expertise in high-performance and discreet HVAC solutions , adapted to Montreal residential buildings.
An ideal choice for comfort and efficiency
The Sharp ZU1 is a new generation wall-mounted heat pump powered by R-32 refrigerant , renowned for its high energy efficiency and its ability to heat down to -25°C . Available in several capacities (12,000 to 24,000 BTU), it offers an optimal balance between performance, durability and energy savings —a trio particularly appreciated by owners of duplexes and triplexes in Montreal.
Construction site challenges: limited space and optimal air circulation
The indoor unit, installed high up in a space with a light, understated wall, needed to ensure even air distribution throughout an open-plan room. Our technicians carefully selected the location to maximize airflow while preserving the aesthetics of the wall.
The refrigerant lines were neatly routed through the rear bulkhead, with discreet capping painted to match the wall. This approach ensures a clean and elegant finish, while also ensuring simplified maintenance.
Careful installation and compliance with AirGreen standards
Every HVAC installation we complete meets the highest industry standards. For this project:
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The refrigeration fittings have been precisely brazed to prevent any potential leaks.
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The electrical wiring was insulated and protected by rigid conduit.
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The condensate drain was gravity-fed, eliminating the need for a pump.
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A check of the R-32 gas charge confirmed compliance with operating pressure and temperature.
The result: an installation that is silent, reliable and high-performance , perfectly integrated into the interior decor.
Performance and comfort in all seasons
Thanks to its DC Inverter technology , the Sharp ZU1 automatically adjusts its power according to heating or cooling needs. The unit offers constant comfort without perceptible temperature variations. In winter, it provides stable heat even during the extreme cold typical of Montreal's climate. In summer, it guarantees fast and uniform air conditioning .
Energy subsidies and savings
Sharp ZU1 series heat pumps are eligible for grant programs offered by Hydro-Québec and the federal Greener Homes program.
This installation therefore allows the owner to benefit from:
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Superior energy efficiency (high SEER) ,
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A significant reduction in the electricity bill ,
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And an accelerated return on investment thanks to the incentives available on the North Shore, the South Shore and in Montreal.
AirGreen Expertise: Beyond Installation
At AirGreen , every project goes far beyond simply assembling a device. We support our customers every step of the way:
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Building analysis and thermal load assessment.
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Selection of equipment according to actual needs (surface area, insulation, orientation).
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Custom installation , in full compliance with building codes and manufacturer requirements.
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Complete commissioning with verification of pressures, air flow and overall performance.
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Preventive maintenance tips to extend the life of the appliance.
A local presence and a local service
Our teams operate daily in the Montreal, Laval, Longueuil areas, as well as on the North Shore and the South Shore .
In Rosemont–La Petite-Patrie , where buildings often combine old-world charm and modern renovations, wall-mounted heat pumps like the Sharp ZU1 represent an ideal solution for combining efficiency, comfort and discretion .
AirGreen remains your trusted partner for all wall-mounted heat pump installation, maintenance, and repair . Our certified experts strive to provide you with comprehensive, transparent, and sustainable service—so your comfort is assured year-round, without compromise.