A discreet addition that transforms the comfort of a Montreal condo
At AirGreen , we have just equipped a condo in the Le Sud-Ouest district with a Sharp ZU1 wall-mounted heat pump . Installed above the living room patio door, the unit blends seamlessly into a bright interior and optimizes four-season comfort without encroaching on the living space.
Why the Sharp ZU1 for an urban condo
The Sharp ZU1 series perfectly meets the needs of Montreal condominiums: high efficiency, low noise level and uniform air diffusion. Coupled with inverter technology , it modulates the power to maintain a stable temperature while reducing electricity consumption. The result: air conditioning in summer and efficient heating in winter , with measurable savings on the bill.
Key assets:
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High efficiency in low temperature heating mode (Montreal climate);
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Wide and directional blowing to cover the open living room-kitchen area;
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Smooth start and quiet operation – valuable in condominiums;
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Improved filtration for consistent air quality .
Sizing and choice of location
The heart of this project: positioning the interior head to maximize air circulation while preserving aesthetics.
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Room treated: open living/dining room area adjoining the kitchen;
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Retained capacity: 12,000 BTU — adapted to the volume and solar gains of the condo;
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Installation height: approx. 2.3 m to promote the Coanda effect and avoid cold areas near the floor;
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Flow direction: main shutter oriented towards the living area and the kitchen island to cover the occupied areas.
The wall directly opening onto the balcony makes a short and discreet wall crossing possible — ideal for limiting pressure losses and facilitating maintenance.
Technical details of the HVAC installation
Our HVAC teams have applied best practices for a durable installation that complies with co-ownership rules:
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Machine type: wall-mounted heat pump (mini-split one zone);
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Refrigerated route: back-to-back configuration, 2 to 3 m lines;
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Drilling: Ø 65 mm core with waterproof grommet and vapor barrier;
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Condensates: gravity drainage to the outside (controlled slope);
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Exterior finish: white UV capping matching the woodwork, stainless steel screws;
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Outdoor unit: placed on the balcony , high-density anti-vibration pads to reduce sound transmission;
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Electricity: dedicated circuit breaker, shielded communication cabling, torque tightening;
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Commissioning: vacuum < 500 microns, leak test , subcooling/superheat reading and current verification.
Co-ownership context: standards and silence above all
In a condominium building, every detail counts:
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Compliance with the pensions and sizes required by the union for the external unit;
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Noise management : selection of location away from bedrooms and neighbors, dampers and oscillation control;
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Defrost water management : controlled flow onto the balcony to avoid any nuisance.
These precautions ensure discreet operation and a peaceful neighborhood .
Winter/summer performance and expected savings
The heat pump covers the majority of mid-season and mild winter heating needs, reducing the use of the existing electric convector. In summer, the air conditioning maintains a stable temperature without drafts thanks to the multi-position motorized shutter.
Concrete benefits:
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Reduction in annual electricity consumption ;
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Regular thermal comfort in the open area;
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Improved air quality through filtration and renewal by controlled infiltration.
HVAC Maintenance: Ensuring Longevity
Regular HVAC maintenance extends the life of the equipment and maintains its performance:
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Cleaning the internal filters every 8 to 12 weeks;
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Annual washing of the exchanger, fan housing and condensate tray;
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Inspection of flare fittings , electrical and refrigerant measurements;
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Seasonal check of condensate drainage and capping.
Our AirGreen maintenance plans include these operations and a detailed report after each visit.
Grants and administrative support
Several programs in Quebec encourage the adoption of high-efficiency heat pumps . Depending on the configuration and current criteria, the owner may be eligible for useful financial assistance to reduce the initial investment. We take care of the pre-verification and assembly of supporting documents for Montreal, Laval, Longueuil, North Shore and South Shore .
What we learned from this project in the Southwest
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Perfect integration into a living room with patio door: discretion, effective diffusion;
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Short refrigeration path : minimized losses, increased efficiency;
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Condo-friendly : silence, aesthetics and respect for co-ownership rules.
AirGreen, your comfort partner in Greater Montreal
From selecting the right BTU to careful installation and acoustic optimization , our team masters the entire process. Each project is delivered with performance tests , usage advice , and after-sales follow-up . For a condo, townhouse, or plex, we offer HVAC solutions adapted to the climate of Greater Montreal.