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Installation d’une Sharp Eco Inverter thermopompe murale à Griffintown (Le Sud-Ouest)
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Installation of a Sharp Eco Inverter wall-mounted heat pump in Griffintown (Le Sud-Ouest)

Carefully installed on a roof terrace for four-season comfort, designed for urban life

In a recent condo in Griffintown , our team installed a Sharp Eco Inverter wall-mounted heat pump . The project required discreet integration on a flat roof with access via a private terrace, rigorous management of refrigeration paths , and a choice of accessories aimed at sustainability. This intervention illustrates our expertise in HVAC installation in buildings in downtown Montreal , where every centimeter counts and where aesthetics are as important as performance.

The customer context and objectives

The owner wanted:

  • A compact wall-mounted system providing efficient heating in cold weather and quiet air conditioning in summer;

  • A robust installation that respects the co-ownership and preserves the watertightness of the roof;

  • Simple maintenance with secure access, without hindering the use of the roof terrace.

We validated the orientation of the condenser, the flow of condensates by gravity , and the distance from the walls to guarantee optimal air flow, in accordance with the manufacturer's recommendations.

Choosing the Sharp Eco Inverter

The Sharp brand is renowned for its reliability in residential applications and its responsive inverter electronics, ideal for rapid load variations in condos. The Eco Inverter series includes:

  • Fine modulation of the compressor to limit on/off cycles and reduce consumption ;

  • Plasmacluster Ion technology which improves indoor air quality by limiting particles and allergens;

  • Controlled acoustics for comfort without nuisance in densely populated areas.

Rooftop installation: stability, silence and longevity

To meet the constraints of the roof and the requirements of the co-ownership, we have chosen:

  • A mechanically fixed raised metal support , placed on distribution blocks and protective rails to avoid any punching of the membrane;

  • Vibration dampers to eliminate structural resonances in the slab;

  • Sufficient ground clearance to clear snow and facilitate seasonal cleanup.

The lateral positioning of the connection box and the access reserve to the service valves simplify maintenance, while maintaining a discreet visual profile from the terrace.

Refrigeration and feeding: precision of execution

We optimize every meter of refrigeration piping to limit pressure losses and maximize efficiency. On this project:

  • The insulated copper lines follow a compact path, protected by a clear exterior capping , discreet on modern facades;

  • The bending radii, crimping and brazing were carried out using nitrogen to preserve the internal integrity of the tubes;

  • A dedicated communication/power cable connects to the indoor unit via a single hole sealed with roof-compatible sealant;

  • The condensate drain operates by gravity, which eliminates the risk of pump failure and simplifies maintenance.

Commissioning and performance checks

The commissioning phase determines reliability:

  • Nitrogen leak test then deep vacuum checked to the micron;

  • Additional charge if necessary depending on the total length (adjustment to the gram);

  • Measurements of supply/return temperatures , compressor intensity and operating pressures to validate the performance curve;

  • Setting modes and instructions for energy-efficient control .

Result: controlled comfort and exemplary integration

The customer now benefits from stable heating during the off-season and in winter, responsive air conditioning in summer, and very quiet operation. The raised and protected installation limits snow accumulation and facilitates technical access. All of this is part of a low-consumption approach, thanks to the inverter compressor and the short refrigeration path.

AirGreen Technical Details and Engineering Choices

Support and anti-vibration

  • Galvanized steel frame with four supports, anchored on distribution blocks and treated wooden rails;

  • Spacers and silent blocks to decouple the unit from the structure, preventing the transmission of vibrations to the terrace elements and adjacent housing.

Condensate and weather management

  • Gravity evacuation directed towards the compliant collection point;

  • Sufficient clearance for battery clearance in the presence of snow;

  • Path protected from direct radiation and prevailing winds, in order to stabilize static pressures in the condenser.

Electricity and protections

  • Dedicated power supply from the condo panel with calibrated circuit breaker and proximity switch;

  • Grounding, torque -controlled tightening;

  • Clean routing of conductors in the capping, with service clearance for future interventions.

Indoor air quality

Sharp's Plasmacluster Ion technology supports conventional filtration by reducing certain suspended particles. Combined with annual HVAC maintenance (filter cleaning, heat exchange, condensate monitoring, and electrical tightening), it contributes to healthier air in the home.

Recommended preventive maintenance

  • Annual inspection: washing the evaporator, cleaning the condenser, checking the crawl space under the chassis and the drain ;

  • Checking the refrigeration insulation and capping, tightening the terminal block;

  • Updated remote control and optimized settings (moderate heating setting, dehumidification mode in summer to improve perceived comfort).

AirGreen Best Practices for Condos in Montreal, Laval , Longueuil , North Shore and South Shore

Preliminary draft

  • Check the co-ownership regulations : authorized location of the condenser, height, anti-vibration, noise level;

  • Choose a location that minimizes line length and respects the aesthetics of the facade.

During installation

  • Protect the roof membrane with suitable distribution blocks ;

  • Use unique drillings and compatible sealants;

  • Favor, where possible, a reliable gravity drain .

After commissioning

  • Explain the operating modes to the customer (Auto, Heating, Cooling, Dehumidification);

  • Offer a maintenance contract to preserve performance and lifespan.

Grants and Eligibility

Several provincial and federal programs encourage the adoption of high-efficiency heat pumps . Eligibility depends on the exact model , certified performance and home configuration. Our team supports each client in verifying criteria and preparing files (Montreal, Laval , Longueuil , North Shore , South Shore ).

What the customer remembers

  • 4-season comfort and responsiveness of the wall-mounted heat pump ;

  • Robust, quiet installation that complies with co-ownership rules;

  • Optimized refrigeration path and simplified future maintenance;

  • Energy savings thanks to inverter modulation.

At AirGreen, we design each HVAC installation as a coherent whole: measured performance, respected aesthetics and long-term reliability. For any condo or house project in Greater Montreal, our team offers the most sustainable option, with the best performance , with responsive after-sales service.

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