In this residential project in Villeray–Saint-Michel–Parc-Extension , our AirGreen team installed two Sharp wall-mounted heat pumps to provide stable and independent comfort in two separate zones of the house. This type of configuration is particularly relevant in many Montreal buildings (multi-story dwellings, finished basements, enclosed rooms, extensions), where a single unit can hardly balance the temperature everywhere… especially during the extreme weather variations typical of Quebec.
Machine type: wall-mounted heat pumps (mini-split) – multi-zone comfort, without compromise
The photo clearly shows two Sharp outdoor units installed side by side. This indicates a very efficient approach: rather than a single multi-zone system, two separate wall-mounted units are used, each dedicated to its own zone. The result: greater precision, more consistent comfort, and increased flexibility in use.
Brand: Sharp (supplied manually — used as primary reference)
We have installed Sharp heat pumps, known for their quiet operation, stable regulation and air quality-oriented technologies (depending on the range).
Model: Sharp ZU1 (consistent with the “Eco Inverter / Plasmacluster” series)
The outdoor units feature the Sharp logo and the Eco Inverter / Plasmacluster range designation. Within the Sharp residential market, this corresponds logically to the Sharp ZU1 (R-32) series, highly relevant for Greater Montreal: performance, efficiency, and reliability for both air conditioning and heating.
In real-world scenarios, each unit size (12,000, 15,000, 18,000, or 24,000 BTU) depends on the volume, insulation, and orientation. Here, the key is the installation logic: 2 zones = 2 systems for truly controlled comfort.
Visible installation details: a clean, winter-ready design.
This outdoor installation perfectly illustrates what we prioritize at AirGreen: durability, finish, service access, and protection from snow .
1) Outdoor units on wall brackets (strategic elevation)
Both units are mounted on sturdy wall brackets , which offers several tangible advantages:
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Clearing the ground to prevent the accumulation of snow and ice in winter
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Increased protection against water, mud, leaves and debris
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Improved longevity and easier maintenance (inspection, cleaning, service)
2) Routing of refrigerant lines: central channel and uniform finish
We see a vertical chute going up, then a horizontal path that neatly connects everything. This choice is excellent when you want to:
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Group the connections for a clean aesthetic
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Protecting pipes against UV rays and impacts
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Keep the route clear and accessible for maintenance
3) Dedicated power supply and service boxes
Below the unit on the right, the electrical components (boxes/connections) are clearly visible. This is an important detail: each system must be installed according to standards, with a safe power supply and adequate access for maintenance.
4) Installation on a foundation wall: typical constraints, suitable solution
The visible wall resembles a concrete foundation/wall with a basement window, a common situation in Montreal. Here, the positioning of the units and cable trays is well-considered:
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Minimizing visible perforations
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Adequate air circulation around the units (critical element for performance)
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Stable and durable installation, even in difficult conditions
Why two Sharp systems rather than a single multi-zone system?
In several projects in Montreal, two separate wall systems offer immediate benefits:
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Independent control : each zone has its own temperature, without compromise
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More consistent comfort : fewer variations between floors, rooms, or distant areas
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Ease of maintenance : more direct diagnosis and upkeep
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Continuity of service : if one unit requires intervention, the other area remains operational.
This is often the most logical approach when you want high-end comfort , particularly in buildings with marked divisions or with a finished basement.
The AirGreen approach: performance, aesthetics, and peace of mind
At AirGreen, we install residential HVAC systems with meticulous attention to detail: alignment, supports, ductwork routing, management of external constraints, and respect for the building's aesthetics. In this project in Villeray–Saint-Michel–Parc-Extension , the installation highlights what truly matters:
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A clean exterior finish (properly installed cable trays)
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Intelligent winter protection (unit elevation)
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A comfort-oriented configuration (2 truly independent zones)
Whether you are in Montreal, Laval, on the North Shore or the South Shore, we apply the same method: size correctly, install cleanly, and ensure lasting comfort .