In the snowy residential neighborhood of Chomedey in Laval, our team recently completed the installation of a SHARP ZU1 15,000 BTU wall-mounted heat pump, a solution perfectly suited to Québec’s climate and the increasing demand for energy-efficient year-round comfort. This project once again highlights our expertise in residential HVAC installation in an urban setting.
A harsh climate that requires a heat pump reliable down to -27 °C
Winters in Laval are unforgiving. During this installation, the outdoor conditions were icy, with a layer of freezing rain covering the paved surface. Installing a reliable HVAC system in such conditions requires more than just a good product: it demands expertise, precision, and attention to detail. The SHARP ZU1 wall-mounted heat pump is specifically designed to handle these extremes, with heating capacity maintained down to -27 °C, without performance loss.
Why choose the SHARP ZU1 15,000 BTU model?
We recommended this model for several key reasons:
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Integrated Plasmacluster technology: This unique air purification system releases positive and negative ions that neutralize airborne viruses, bacteria, mold, and allergens.
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R-32 refrigerant: An eco-friendly choice, with a global warming potential more than 65% lower than R-410A.
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Excellent energy efficiency: With a SEER of 24 and an HSPF of 11.8, this heat pump enables significant electricity savings, especially during cold months.
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Ultra quiet: Indoors, the sound level can drop to just 23 dB, offering outstanding acoustic comfort.
Key steps in the Chomedey installation
Environmental analysis and planning
Before installation, our technicians performed a thermal analysis of the home, to ensure the 15,000 BTU capacity was appropriate for the space. The location of the outdoor unit was also strategic: we selected a spot shielded from prevailing winds while facilitating proper condensate drainage, a critical element in this area known for heavy frost.
Safe installation of the outdoor unit
As shown in the photo, the outdoor unit was placed on solid, elevated support blocks, preventing direct contact with ice buildup. We also included protection against ice reflux and rising moisture.
A DucanTech box ensures a safe electrical connection, compliant with all current standards for outdoor HVAC systems.
Indoor unit integration and system startup
The indoor unit was mounted at the ideal height to optimize the Coanda airflow effect, a SHARP-exclusive technology that allows for even air distribution throughout the room, without blowing directly on the occupants.
Once the full installation was completed, our technicians conducted performance tests, validated the system’s efficiency, then took the time to explain how to use the smart remote and the available modes (heating, cooling, dehumidifying, ventilation).
Respiratory comfort thanks to Plasmacluster purification
Beyond regulating temperature, this heat pump significantly improves indoor air quality. Thanks to Plasmacluster technology, occupants enjoy a healthier environment, free of persistent odors, airborne viruses, and allergens — a major benefit in a neighborhood like Chomedey where many families live with children or seniors.
An energy-efficient system eligible for government grants
This SHARP ZU1 model is eligible for government rebates and programs such as Hydro-Québec’s LogisVert program, when the criteria are met. We always assist our clients with these steps to maximize their return on investment.
Challenges successfully addressed by our team
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Icy ground: Required securing the installation to prevent infiltration and slippage.
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Negative temperatures at time of installation: Tested system performance under real winter conditions from day one.
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Respecting residential aesthetics: The outdoor unit was installed in a way that minimizes its visual impact, while ensuring optimal performance.
Maintenance tips to ensure long-lasting heat pump performance
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Clean the HEPA filter regularly to maintain air quality.
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Check winter condensate drainage to avoid ice accumulation.
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Schedule annual HVAC maintenance with AirGreen, to ensure efficient operation year after year.
What the Chomedey client had to say
At the end of the project, our client said she was very satisfied with the speed of installation, the support provided for rebates, and especially the instant thermal comfort in her home. Thanks to a professional installation by AirGreen, she is now fully equipped to handle Laval’s harsh winters with peace of mind.
AirGreen, your trusted HVAC expert in Laval and on the North Shore
At AirGreen, we don’t just install equipment. We guide our clients every step of the way, from choosing the right model to the final installation, while optimizing energy efficiency and providing lasting peace of mind.
Whether you're in Laval, Montréal, Longueuil, on the North Shore or South Shore, we bring our know-how to your service for sustainable comfort. Every wall-mounted heat pump we install is designed to last, perform, and integrate seamlessly into your living space.