Installation of a Sharp Eco Inverter wall-mounted heat pump in Chomedey

A clean and durable lateral integration on a brick facade

At AirGreen , we design each HVAC installation to perform in all seasons and to carefully integrate with the architecture. In Chomedey (Laval) , our client wanted a compact, efficient and discreet solution along the side driveway of his pale brick house. We selected a Sharp Eco Inverter heat pump , installed on wall brackets to free up floor space, protect the equipment from shocks and snow, and ensure optimal air circulation.

The condenser is installed at a height calculated to prevent winter burial. Blue anti-vibration shims under the chassis mechanically isolate the unit, reduce the transmission of structural noise to the masonry and extend the life of the components. A vertical white capping runs up the facade: it houses the refrigerant connections and the communication cable in a UV-stabilized sheath, perfectly aligned between the window and the downspout. The external disconnect switch (watertight box) is installed within easy reach, in accordance with maintenance and safety requirements.

The area features a narrow paved passageway and a bed of stones at the base of the wall. We maintained sufficient clearance in front of the heat exchanger for air intake and maintenance work, while securing the drip rails to prevent defrost water from spilling onto the steps or paving joints. The result is a clean, accessible, and durable installation that respects the aesthetics of the façade.

Performance, A2L security and savings guaranteed

The Sharp Eco Inverter uses R-32 (A2L classification) , a refrigerant with a lower global warming potential than R-410A, with excellent seasonal efficiencies. Combined with the continuous modulation of the compressor, the machine provides stable comfort and controlled consumption, both in air conditioning and heating.

Rigorous commissioning procedure

• Nitrogen leak test , pressure control and inspection of fittings.

• Deep vacuum until stabilization, to remove moisture and residual air.

• Checking the tightening torques of the flares, applying A2L compatible oil if necessary.

• Electrical controls: currents, supply voltage, mode selector.

• Functional measurements: supply and return temperatures, and validation of superheating/subcooling to confirm actual performance.

Sizing and recommended use

The sizing chosen for this individual house is generally between 12,000 and 18,000 BTU/h , after calculating the loads (orientation, insulation, glazed surface, infiltration). We recommend:

• cleaning the external battery in spring and after pollen episodes;

• visual inspection in winter to ensure that drifted snow does not accumulate under the unit;

• annual HVAC maintenance to optimize longevity and performance.

Installation details: precision and finishes

Brackets and anchors

Galvanized brackets support the chassis on rails, with anti-skid and shock-absorbing pads . The anchors are sealed in the brick and concrete base, respecting the joint lines to avoid micro-cracks. The squareness and level are checked to eliminate any stress on the carcass and ensure correct drainage during defrost cycles.

Capping and bonding

The white capping , chosen to match the soffit and joinery, protects the insulation from UV rays and impacts. The route is compact : the length of the connections is limited to maintain thermodynamic efficiency and reduce the refrigerant load. A service loop at the unit's outlet absorbs expansion and facilitates maintenance.

Power supply and protection

The NEMA 3R disconnect switch is positioned in the technician's path, at a suitable distance from the connections. The circuit is dedicated from the main panel, with a rating and protection compatible with the manufacturer's specifications. Grounding, breaker marking, and conductor labeling are verified and recorded in the completion report.

Defrosting and condensate management

In heating mode, defrost cycles cause water to flow . We have provided a natural slope so that the drainage flows by gravity towards the stone bed, without runoff onto the driveway. The space under the unit remains clear, which limits the formation of ice during periods of intense cold and prevents splashing onto the masonry.

Architectural context and controlled constraints

• Narrow side aisle : the wall installation frees up the ground and provides a clear passage.

• Presence of a downspout : the capping layout respects clearances and preserves accessibility for gutter work.

• Wind exposure : Reinforced attachment and positioning under the overhang reduce turbulence and air recirculation.

• Existing services at the foot of the wall : clearances are controlled to maintain access and prevent any interaction.

Comfort and silence every day

Inverter technology minimizes on/off cycles and stabilizes the indoor temperature. The pad -mounted installation dampens vibrations, and the airflow is directed to avoid swirls along the wall. For periods of heatwave, the indoor unit's dehumidification function improves the feeling of freshness without overconsumption. In the off-season, the low-speed operation ensures a reduced noise level , appreciated on side passages.

Aesthetics and durability

Visual uniformity (white capping, aligned conduits, stainless steel screws) provides a clean finish . Drilled surfaces are sealed using sealants suitable for brick to prevent water infiltration. The insulation is closed at the end with rigid end caps to prevent degradation by UV rays or birds. This attention to detail protects the investment over the long term.

Grants and administrative support

Depending on the efficiency class and low-temperature operating range, this heat pump may be eligible for certain assistance programs in Greater Montreal. Our team supports homeowners in Montreal, Laval, Longueuil, the North Shore, and the South Shore : technical surveys, photos, serial numbers, and submission of required documents. The goal is to reduce the net cost of the project and accelerate the return on investment.

Best practices for owners

• Maintain clearances : no objects stored in front of the battery; vegetation trimmed.

• Monitor capping : annual visual inspection of junctions and end caps.

• Clean the indoor unit filters every 4 to 8 weeks during peak periods.

• Schedule maintenance before summer or winter to keep your wall-mounted air conditioner and heater efficient.

Why AirGreen for your installation in Laval and beyond

• Installation engineering : load calculation, facade analysis, cable trays and connections.

• Controlled execution : calibrated tools, nitrogen, high-efficiency vacuum pump, commissioning metrology.

• Careful finishing : harmonized cappings, clear labeling, compliance reports, usage instructions.

• Regional service : rapid interventions in Montreal, Laval, Longueuil, on the North Shore and the South Shore , with a current stock of parts and a team dedicated to monitoring HVAC maintenance .

Chomedey project review

This Sharp Eco Inverter wall-mounted heat pump installation delivers stable year-round comfort, tangible energy savings, and exemplary outdoor integration. The bracket-mounted installation, compact vertical capping , accessible disconnect switch , and precise flow management create a reliable, scalable, and building-friendly solution. Our client benefits from a discreet, high-performance system that's ready to withstand Laval winters and Montreal summers alike.