In typical Plateau-Mont-Royal apartments, with their relatively high ceilings, moldings, and casement windows, thermal comfort can be a real challenge in both summer and winter. This was precisely the situation for this client, who wanted to modernize his air conditioning system while improving his supplemental heating for the colder months, without compromising the character of his apartment.
We therefore proposed the installation of aSharp wall-mounted heat pump , Sharp ZU1 model of 12,000 BTU, perfectly suited to the size of the room and the configuration of the apartment.
Context: a warm apartment, but difficult to air-condition
The room to be renovated serves as both an office and a small living room. It contains:
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A relatively high ceiling with peripheral molding;
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A ceiling fan already in place, used to circulate the air;
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A large wooden window above which heat is naturally concentrated in summer and cold air seeps in during winter;
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Light-colored walls with several decorative frames that the client was keen to keep intact.
The main challenge was twofold:
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Optimize air circulation without creating direct drafts on the occupants;
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Integrate the Sharp wall-mounted heat pump harmoniously, without visible cables or massive conduits that would disrupt the aesthetics of the room.
Why a Sharp ZU1 wall-mounted heat pump?
The Sharp ZU1 series is a family of R-32 wall-mounted heat pumps designed for the North American residential market, offering:
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Very good energy efficiency in both air conditioning and heating;
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Stable and efficient operation at low temperatures, ideal for Montreal winters;
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A very low noise level, particularly appreciated in a room that serves as an office and relaxation area;
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A simple and discreet design, which blends well with a classic Plateau-Mont-Royal interior.
For this project, a capacity of 12,000 BTU was chosen, sufficient to cover the main room while also providing support to the rest of the apartment when the doors are open.
Indoor unit integration: above the window, in synergy with the ceiling fan
The photo clearly shows the Sharp wall unit installed above the window , in the highest part of the room. This positioning offers several advantages:
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It allows the air blown by the heat pump to travel along the ceiling before gently descending back into the room, thus avoiding the discomfort associated with a direct jet of air on the occupants.
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It frees up the side walls for furniture and picture frames, thus respecting the existing decor.
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It facilitates the passage of refrigeration lines to the outside, behind the wall, without interfering with the wooden joinery elements.
Ceiling fan control
A particular feature of this installation is the proximity between the Sharp wall-mounted heat pump and the existing ceiling fan . We paid particular attention to a few points:
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The clearance between the fan blades and the front of the Sharp unit complies with safety and performance recommendations;
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The height of the fan shaft is sufficient to ensure that the airflow from the heat pump is not blocked;
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When used together, the ceiling fan helps to homogenize the temperature , whether the heat pump is in cooling or heating mode.
The result: fresh or warm air is better distributed throughout the room, which improves perceived comfort without the need to push the heat pump to full power.
Discreet connections and lighting
On the same wall, a linear lighting strip was retained. Our technicians ensured that:
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Maintain a clean visual line by aligning the Sharp unit and the light fixture to reduce the impression of a “technical wall”;
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Run the refrigeration lines inside the wall and, where this was not possible, use thin, white conduits that blend in with the light paint;
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Protect frames and furniture during the work to avoid dust and plaster splashes.
Sharp outdoor installation and connections
Even though the outdoor unit is not visible in the photo, the installation was designed to respect the typical constraints of the Plateau-Mont-Royal area:
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The Sharp compressor is mounted on anti-vibration supports to reduce noise transmitted to the structure;
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Sufficient height above the ground to prevent snow accumulation in winter;
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Orientation allowing good air circulation, away from smoke emissions, closed corners or enclosed places;
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Refrigeration and electrical connections compliant with code, with adequate grounding and dedicated circuit breaker.
The refrigerant lines have been insulated and protected from sun and shocks to ensure the longevity of the Sharp wall-mounted heat pump and the stability of its performance.
Comfort achieved: cooler summers, milder winters in Plateau-Mont-Royal
After commissioning and operational testing, the client quickly noticed several improvements:
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In summer : the room, which used to overheat in the late afternoon, now stays cool and pleasant, even during heat waves. The ceiling fan, used at low speed, complements the work of the heat pump by gently circulating the cool air.
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During the shoulder seasons and winter : the heating function of the Sharp wall-mounted heat pump helps to relieve the building's main heating system. The heat is more evenly distributed, and temperature variations between the floor and ceiling are significantly reduced.
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On a daily basis : the very low noise level of the indoor unit is particularly appreciated for teleworking, studying or movie nights in the room.
Thanks to the modulating (inverter) compressor of the Sharp ZU1 , the heat pump continuously adjusts its output according to actual needs. This results in:
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Fewer on/off cycles;
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Reduced electricity consumption;
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A potentially extended lifespan for the equipment.
A project that seems simple, but which requires real expertise.
Installing a Sharp wall-mounted heat pump in a Plateau-Mont-Royal apartment may seem simple at first glance. However, several factors must be taken into account:
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The presence of a ceiling fan and the management of clearances;
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The ceiling height and the shape of the room;
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The position of windows and heat sources;
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The constraints of passing pipes to the outside through walls that are sometimes old;
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Respect for the architectural character (moldings, woodwork, wall frames).
At AirGreen , we take the time to plan every detail : choice of capacity, exact positioning of the unit, type of supports, routing of cables and pipes, initial programming of the remote control, and explanation of operation to the customer.
Why choose AirGreen for your Sharp heat pump in Montreal?
By entrusting us with your heat pump installation project, you will benefit from:
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From our concrete experience on hundreds of residential projects in Montreal, Laval, on the North Shore and the South Shore;
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A mastery of the particularities of Montreal buildings , whether they are old plexes, recent condos or single-family homes;
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From a team of technicians trained on Sharp wall-mounted heat pumps (including the Sharp ZU1 range and other modern R-32 models);
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With a focus on detail: aesthetics, comfort, quietness and energy efficiency.
Whether you are in Plateau-Mont-Royal, Rosemont, Le Sud-Ouest or elsewhere in Greater Montreal, we can offer you a wall-mounted heat pump solution tailored to your home, your budget and your lifestyle.
If you are also considering installing a Sharp wall-mounted heat pump in your apartment or house, our team will be happy to assess your project and advise you on the right model and sizing.