An optimized HVAC project for a commercial building
At AirGreen , we regularly work on complex projects requiring in-depth expertise in HVAC installation . Here, our team installed a Midea wall-mounted heat pump in an office building located in Saint-Laurent , on the North Shore of Montreal. The goal was to provide consistent thermal comfort while respecting the technical constraints of a gravel flat roof .
This installation perfectly illustrates our expertise in residential and commercial heat pumps in Greater Montreal, with an emphasis on safety, energy performance and sustainability.
Client context and needs
The client, owner of a mixed-use building, wanted:
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Modernize your aging air conditioning system.
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Take advantage of Quebec subsidies available for high-efficiency equipment.
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Minimize disruption to building occupants.
The solution chosen was a Midea wall-mounted heat pump , adapted to the Quebec climate, providing both heating in winter and air conditioning in summer .
Technical details of the installation
Support and positioning
The outdoor unit was securely mounted on a raised support installed directly on the flat roof. To protect the membrane and ensure proper load distribution, treated wood crosspieces were used under the metal legs. This choice prevents any damage to the roof and guarantees the stability of the equipment.
Electrical connection
A disconnect box was installed in the immediate vicinity of the condenser. This device is essential for safety, allowing for rapid power disconnection during maintenance or in the event of a technical problem. The wiring was carefully sheathed and sealed at the building entrance.
Refrigerant connections and sealing
The refrigerant pipes and communication wiring were bundled in a white insulating sleeve, ensuring both weather protection and optimal energy efficiency. The wall penetration was sealed with a specialized vapor barrier to prevent any air or water infiltration.
The advantages of the Midea heat pump
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4-season versatility : efficient heating even at -25°C and optimal air conditioning in summer.
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High energy efficiency : efficiency to reduce electricity bills.
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Eligibility for LogisVert and federal subsidies , thanks to its certified performance.
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Reliability in urban environments : robust construction and durable compressor.
Constraints and solutions provided
Flat roof management
Installing a heat pump on a flat roof requires special attention:
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Prevention of snow accumulation around the unit.
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Maintain good air circulation.
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Protection of wiring against climatic variations.
Our team anticipated these aspects by elevating the unit and using corrosion-resistant fasteners.
Accessibility
Accessing the roof presented a logistical challenge. Through careful planning and the use of suitable equipment, the unit was transported and installed quickly, without disrupting building operations.
Results obtained
The customer now benefits from:
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Stable thermal comfort throughout the offices.
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A significant reduction in its energy costs .
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An installation that complies with current electrical and HVAC standards.
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Peace of mind with the comprehensive AirGreen guarantee.
AirGreen expertise serving Greater Montreal
Whether it's for a condo in Ville-Marie , a house in Laval , or a commercial building in Saint-Laurent , AirGreen is the trusted partner for all your wall-mounted, central and multi-zone heat pump installations.
We combine technical expertise, attention to detail and respect for deadlines to offer impeccable service throughout Greater Montreal, on both the North Shore and the South Shore .