A discreet, efficient installation that is perfectly integrated into the residential setting
At AirGreen , we recently completed a Sharp ZHU1 wall-mounted heat pump installation in a quiet residential neighborhood of Sainte-Dorothée, Laval . The project perfectly illustrates our rigorous approach: a combination of technical precision, careful aesthetics, and total compliance with Quebec HVAC standards.
Customer choice: efficiency and comfort all year round
The owner wanted a system that would provide efficient heating and cooling while remaining quiet and discreet. After analyzing the thermal needs of the residence—a modern, mid-sized condo—we recommended the Sharp ZHU1 , a wall-mounted R-32 heat pump offering excellent efficiency down to −25°C , and Energy Star certified performance.
This model is distinguished by:
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A continuously modulating inverter compressor ;
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High SEER energy efficiency (up to 23) ;
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Reduced noise level (< 40 dB indoors);
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Compatibility with grant programs available through Hydro-Québec and the Quebec government for energy-efficient systems.
An installation designed to last
The outdoor unit has been mounted on a raised aluminum support , ensuring good air circulation and protection against snow and humidity . This choice prevents water from accumulating under the condenser and extends the life of the compressor.
Notable installation elements include:
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Galvanized metal bracket securely attached to the load-bearing wall;
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Sealed electrical protection box compliant with the RBQ;
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Gravity drainage with rigid sheath for secure evacuation;
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Clean and discreet finish of refrigerant pipes through the wall, sealed with expanding foam;
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Tight connection and pressure tested to guarantee zero leaks.
The whole was carefully executed to integrate harmoniously with the facade while respecting the clearances required by the CSA C22.1 standard and the Quebec Building Code .
Key technical details
| Element | Specification |
|---|---|
| Make / Model | Sharp ZHU1 |
| Kind | Wall-mounted heat pump (mini-split, 1 zone) |
| Refrigerant gas | R-32 (low GHG) |
| Ability | 18,000 BTU |
| Operating temperature | Up to −25°C |
| Assembly | Raised on aluminum support |
| Drainage | Gravity, rigid conduit |
| Electricity | Connection to a dedicated 240 V circuit with a waterproof external circuit breaker |
Technical challenges and solutions
The installation required special attention when passing through the load-bearing wall , located near a French window. To avoid any vibration or heat transfer, our technicians used a waterproof insulating sleeve and a fire-resistant seal made from polyurethane foam.
In addition, the positioning of the condenser has been studied to guarantee excellent air circulation while minimizing noise pollution for neighbors. Thanks to our level of precision , the result is both efficient, silent and aesthetically impeccable.
Long-lasting comfort, supported by our preventive maintenance
At AirGreen, we provide each installation with an annual maintenance plan to ensure optimal system performance. Our technicians check:
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The refrigerant pressure ;
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Cleaning filters and coils ;
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Electrical and electronic operation ;
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The sealing and insulation points .
This maintenance guarantees performance and extends the life of the heat pump while maintaining optimal comfort for our customers in Laval and Greater Montreal.
Why choose AirGreen for your HVAC project?
Our team is committed to providing:
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RBQ and CCQ certified and compliant installations ;
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Highly efficient equipment compatible with energy-saving subsidies ;
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Transparent, fast and personalized customer service ;
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A full warranty on labor and materials.
Whether you are in Laval, Longueuil, Montreal, on the North Shore or the South Shore , AirGreen remains your trusted partner for any Sharp heat pump installation , as well as for the Fujitsu, Midea, Gree, Lennox, Bosch and many other brands.