Installation of a Sharp Eco Inverter wall-mounted heat pump in Rosemont–La Petite-Patrie
AirGreen installs a Sharp Eco Inverter wall-mounted heat pump in Rosemont–La Petite-Patrie: bracket-mounted, A2L (R-32) refrigerant, compact connections, and an outdoor disconnect switch. Four-season comfort and impeccable finishes.
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A high, neat and compliant installation, for four-season comfort
At AirGreen , we prioritize smart HVAC systems that are designed to last and integrate seamlessly into Greater Montreal's residential facades. This project in Rosemont–La Petite-Patrie features a Sharp Eco Inverter wall-mounted heat pump , mounted on wall brackets under the roof overhang. The goal: to provide reliable heating and cooling while minimizing the footprint, protecting equipment from the elements, reducing vibration transmission, and maintaining easy access for maintenance.
Why a Sharp Eco Inverter wall-mounted heat pump?
Continuous modulation and efficiency
Inverter technology finely adjusts the compressor speed. The result: a stable temperature, fewer on/off cycles, reduced consumption, and very low noise levels , both in summer and winter.
A2L (R-32) refrigerant and efficiency
The unit uses low-GWP A2L (R-32) refrigerant compared to R-410A, improving seasonal efficiency and making it easier to achieve energy-saving targets. Our team follows specific A2L safety procedures : controlled handling, adequate ventilation, and rigorous circuit sealing.
Eligibility for aid
Depending on the exact configuration and performance of the machine (Energy Star, low temperature heating), the project may be eligible for local subsidies in the greater Montreal area, Laval, Longueuil, North Shore and South Shore . We support our clients in verifying the criteria and preparing the files.
Design and installation: optimized wall installation
Anchoring on brackets at height
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Robust brackets with reinforcing plate, fixed in the masonry.
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Visible anti-vibration wedges under the frame to limit transmission to the wall and floor of the balcony.
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Clearances respected around the battery to guarantee air intake and avoid air recycling under the soffit.
This choice frees up floor space, protects the unit from accumulated snow and shock, and reduces exposure to garden dust and dirt.
Compact and protected refrigerated path
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Insulated service loop to absorb expansion and allow maintenance operations.
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Tight and neat wall penetration, with continuous insulation to avoid thermal bridges and condensation.
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Short connection length , favorable to efficiency and refrigerant charge.
Power supply and electrical safety
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External disconnect switch installed within easy reach of the technician.
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Dedicated circuit from the main panel, rating and protection in accordance with manufacturer specifications and current standards.
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Grounding checked and clear marking for intervention.
Commissioning details that make the difference
Meticulous procedures
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Deep vacuum (up to 500 microns) with stabilization to ensure the absence of moisture and air.
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Nitrogen leak test , followed by pressure observation.
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Check the tightening torques of the flared fittings and apply A2L compatible oil if necessary.
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Control of intensities , insufflation temperatures and return to confirm actual performance.
Defrosting and condensate management
Installing the system high up, under the soffit, limits snow burial and facilitates the flow of defrost water. We validate the drip path to prevent any runoff onto steps, coverings, or passageways.
Context of the house and constraints addressed
Painted brick facade, covered balcony
The site features painted brick cladding and a covered balcony. We have:
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Position the condenser under the overhang to protect it from direct precipitation while respecting air clearances.
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Use anchors suitable for masonry , with appropriate sealing, to avoid micro-cracks and ensure long-term strength.
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Provided clear access from below the unit for seasonal operations (cleaning the battery, checking connections).
Vibration and noise management
In addition to the anti-vibration pads, the alignment of the brackets and the perfect squareness of the chassis limit resonances. The inverter modulation maintains a low noise level in stabilized mode, a significant advantage for busy balconies and neighbors.
Sizing and usage tips
Capacity and comfort
For a typical living area, the capacity chosen is generally around 12,000 to 18,000 BTU/h , depending on the load calculation (orientation, insulation, windows). We systematically carry out a thermal assessment in order to adapt the size of the unit to the reality of the housing.
Best practices
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Keep the area around the unit clear (no objects stored under the platform).
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Clean the outdoor battery in early spring and after the pollen season.
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In winter, visually check that drifted snow is not accumulating against the condenser.
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Schedule periodic maintenance: checking parameters, tightening, cleaning internal filters.
Result: stable comfort and preserved facade
This high-mounted Sharp heat pump installation combines discretion and performance. The client benefits from consistent comfort throughout the seasons, controlled energy consumption , and equipment protected from the elements. The installation complies with industry standards while enhancing the architecture of the Rosemont–La Petite-Patrie property.
What we bring to residents of Montreal, Laval, Longueuil, North Shore and South Shore
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Complete support : selection of equipment, load calculation, grant procedures when applicable.
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Certified team : installers trained in the specificities of A2L (R-32) refrigerant and advanced sealing methods.
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Careful finishing : harmonized cappings, watertight holes, clear labeling, documentation provided to the owner.
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After-sales service : preventive maintenance, rapid diagnostics, parts and labor according to warranty conditions.
Points of vigilance for similar projects
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Soffit clearances : provide sufficient space to avoid recirculation of hot air in heating and suffocation of the battery in air conditioning.
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Installation height : combine snow protection and accessibility for maintenance.
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Structural noise management : anti-vibration pads, controlled tightening, rigidity of brackets.
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Refrigeration path : prioritize compact connections and continuous insulation.
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Electricity : accessible external disconnect switch, identification of the circuit dedicated to the panel.
Conclusion
Choosing a Sharp Eco Inverter wall-mounted heat pump installed by AirGreen means benefiting from a precise, quiet and durable solution, perfectly suited to Montreal winters as well as summer heat waves. Our teams deliver clean, compliant and aesthetically pleasing construction sites throughout Montreal, Laval, Longueuil, on the North Shore and the South Shore .
The job tools
Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.
Conversion: 1 W = 3.412 BTU/h. An indication, not a load calculation: baseboards and furnaces are often stronger than the real need, and they can stay as backup. AirGreen confirms the capacity on site.
How the job unfolds
The main steps of this kind of job at AirGreen. Every house has its quirks: the estimate brings them out.
We look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
Model, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
Floors and furniture protected, wall plate position marked level, wall opening located.
A single opening, with the slope the drain needs to flow outside.
Set on a stand raised above the snow, with the clearances the manufacturer requires.
Connected, insulated and protected. The opening is then sealed against water, cold air and insects.
A dedicated circuit and an accessible disconnect near the outdoor unit.
Leak test, vacuum, then start-up and a check of heating and cooling.
Remote, modes, filters: we show you the essentials before we leave.
- The on-site estimateWe look at the room, the outside wall, the line route and where the outdoor unit will go. That is where the capacity gets chosen.
- The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
- Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
- The wall openingA single opening, with the slope the drain needs to flow outside.
- The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
- Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
- The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
- Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
- The walkthroughRemote, modes, filters: we show you the essentials before we leave.
What we check on a job like this one
Each number is a point we check on site. Switch between summer and winter to watch air and heat move.
In summer, the outdoor unit rejects the house's heat outside.
Generic illustration of this type of installation, not a survey of this job site. Tap a number.
Mounted level on a wall plate, high enough for the air to reach the whole room, with enough space around it to slide the filters out easily.
The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.
Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.
A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.
The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.
On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.
The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.
Is your home ready?
Check what applies at your place. A "no" is not a refusal: it is what we sort out during the estimate.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
What to do, season by season
Three habits per season for this unit. They take a few minutes and prevent many calls.
- Clean the indoor unit's filters.
- Clear leaves and debris left on the outdoor unit by winter.
- Test cooling before the first hot days.
- Clean the filters more often when the unit runs a lot.
- Keep plants away from the outdoor unit.
- Check that no water drips from the indoor unit.
- Rake the leaves around the outdoor unit.
- Test heating before the first cold days.
- Book periodic maintenance before winter.
- Keep snow away from the stand and the front of the unit.
- Let the unit defrost: it is normal.
- Never hit the ice on the fins; call us if the unit stays iced up.
The right pages, at the right time
Four statements: true or false?
It all comes down to details you have just seen.
1. In heating mode, the outdoor unit can produce water.
During defrost cycles. That water must drain away without forming ice.
2. You pick the capacity with a simple square-footage rule.
Windows, insulation, orientation and how the room is used all count. Capacity is chosen on site.
3. A multi-zone connects several indoor heads to a single condenser.
One head per room, all on the same condenser. Each room keeps its own temperature.
4. The disconnect can sit behind the patio furniture.
It must stay accessible: it is what shuts the unit off for service.
0 / 4 right answers
What people ask us about this kind of work
Does a wall-mounted heat pump heat in winter?
Wall-mounted or multi-zone: how do I choose?
Where does the outdoor unit go?
Are there grants?
Do I need a permit?
How cold can it heat?
How much can I save?
How is the LogisVert assistance calculated?
Is it noisy?
The outdoor unit is covered in ice: is that normal?
Does AirGreen hold the required licences?
Is the estimate free?
No question matches. Write to us: we answer.
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Text and photo: a real AirGreen Climatisation & Chauffage job. The diagrams are generic illustrations of the type of installation, not a survey of this job site. Sources of the added figures: airgreen.ca product pages (NEEP / AHRI performance), Hydro-Québec (Heat pumps page, LogisVert, read on 13 October 2026), Régie de l’énergie (rate D as of 1 April 2026).