In the heart of Ville-Marie , on a typical downtown Montreal residential building, our AirGreen team completed an HVAC installation that demanded technical precision , meticulous planning , and sensitivity to the urban context . The roof type, the neighborhood density, and access constraints required a reliable, discreet, and fully compliant solution.
The choice fell on Sharp wall-mounted heat pumps , installed directly on the roof, a common configuration in Montreal buildings with flat roofs.
Type of system installed: wall-mounted heat pump (mini-split)
The visible equipment clearly corresponds to Sharp wall-mounted heat pumps , with compact outdoor units connected to wall-mounted indoor units (not visible in the photo) by insulated refrigerant lines.
This type of system is particularly well-suited to buildings in Ville-Marie, where the aim is to:
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avoid adding ducts,
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preserve interior space,
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limit the visual impact on the facade,
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benefit from precise control by zone.
Brand and model: Sharp, residential R-32 series
The Sharp brand is used as the primary reference, in accordance with the information provided.
Based on the shape of the units, their dimensions, and the most common configurations installed by AirGreen, the most consistent model here is:
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Sharp ZU1 (R-32) – typical capacity 12,000 to 18,000 BTU per unit
The Sharp ZU1 series is known for its inverter operation , good energy efficiency and compatibility with Quebec's climatic requirements , particularly for multi-unit residential buildings.
Visible installation details and key technical elements
This rooftop installation in Ville-Marie highlights several important points:
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Installation on raised metal supports , resting on treated wooden blocks in order to:
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protect the roof membrane,
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distribute the load,
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reduce vibrations.
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Multi-layered flat roof , typical of Montreal urban buildings.
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Insulated and well-ventilated refrigeration connections between units promote durability and performance.
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Electrical disconnect boxes installed near each outdoor unit ensure safety and compliance.
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Symmetrical arrangement of units , facilitating maintenance and air release.
This type of installation requires precise coordination to preserve the integrity of the roof and comply with building standards, while ensuring optimal operation of the heat pumps.
Why a rooftop installation is ideal in Ville-Marie
In central areas like Ville-Marie, installing outdoor units on the roof offers several advantages:
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No visual obstructions on the facades facing the street.
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Reduction of noise pollution for occupants and neighbors.
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Improved air circulation , essential for the efficiency of heat pumps.
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Space optimization in a dense urban environment.
This is a solution we often prefer for apartment buildings, condominiums and plexes in the city center.
Performance and everyday comfort
The Sharp wall-mounted heat pumps installed in this context offer:
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efficient and stable air conditioning during Montreal summers,
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efficient heating during the shoulder seasons , reducing reliance on existing electrical systems,
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Zone-based regulation , ideal for residential units with different uses,
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quiet operation, an essential criterion in urban environments.
Thanks to a well-designed installation, occupants benefit from constant comfort without compromising on the aesthetics or structure of the building.
The AirGreen approach in urban environments
On this project in Ville-Marie, our priority was to deliver a facility:
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technically flawless,
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adapted to the constraints of the roof,
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durable against freeze/thaw cycles
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easy to maintain,
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and in line with the high expectations of downtown Montreal.
Every detail counts, especially when working at heights and on existing buildings.
Conclusion
This installation of Sharp wall-mounted heat pumps in Ville-Marie perfectly illustrates AirGreen's expertise in urban residential HVAC. By combining reliable equipment, meticulous implementation, and a deep understanding of the Montreal context, we deliver sustainable, high-performance, and seamlessly integrated solutions.