Installation of a Zephyr residential series wall-mounted heat pump in Rosemont–La Petite-Patrie
AirGreen installs a Zephyr wall-mounted heat pump in Rosemont–La Petite-Patrie: impeccable finish, precise adjustments, HVAC maintenance and subsidy advice for Montreal, Laval, Longueuil, North Shore and South Shore.
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.
A neat interior installation, designed for comfort and discretion
At AirGreen , we prioritize clean, efficient, and sustainable HVAC systems . In this typical Rosemont–La Petite-Patrie apartment, we installed a Zephyr wall-mounted heat pump in the ideal location: high on the wall, clear of any obstructions, with a perfectly aligned supply damper to sweep the room without drafts. The result? Consistent, quiet comfort and a minimalist aesthetic that blends naturally into the interior.
Why choosing a Zephyr wall head works here
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Compact size and glossy one-piece front that blends into the decor.
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The shutter orientation is adjusted to project air along the ceiling, promoting optimal air mixing in summer and winter.
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Zephyr range Inverter technology : the machine finely modulates its power, limiting on/off cycles and reducing consumption.
Technical details of the installation (what makes the difference)
Our teams follow a rigorous protocol to ensure performance, safety, and longevity. On this project, the interior layout and the route to the exterior allow for efficient and discreet installation.
Drilling and crossing the wall
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Single, small diameter drilling with controlled outward slope to ensure gravity drainage of condensate (no pump required, less maintenance).
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Vapor barrier and insulation sleeve closed around the refrigeration core to prevent any infiltration of air or humidity.
Refrigeration connections and wiring
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Sheathed refrigeration bundle, running along the wall to the outside via a white capping for a clean finish and easy maintenance.
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Connection length calibrated to respect the refrigerant charges provided by the manufacturer and guarantee yields .
Head position and adjustments
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Upper and lateral clearance respected so as not to restrict the flow .
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Horizontal sweep settings to distribute air throughout the living area and limit stratification.
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Level checked: a perfectly plumb assembly avoids noise problems and promotes the evacuation of condensates.
Outdoor unit (key points, although not visible here)
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Place on a suitable support (wall brackets or raised base) to clear the fins of snow and debris.
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Waterproof and unobstructed external circuit breaker : safety, simplified maintenance and electrical compliance.
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Sufficient rear and front clearance to preserve heat exchange and compressor durability .
Performance and comfort: the contribution of a Zephyr wall-mounted heat pump
A properly sized heat pump improves quality of life year-round.
Summer: efficient and quiet air conditioning
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Fine modulation to maintain temperature smoothly.
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More stable dehumidification : the feeling of freshness arrives quickly, even during Montreal heat waves.
Winter: economical and responsive heating
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The heating mode provides rapid support during the inter-seasons and a significant contribution during the winter, while reducing the bill compared to electric convectors alone.
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Precise control of the setpoint : we stabilize the temperature, we limit the deviations, we eliminate the sensation of radiant cold.
Air quality and acoustics
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Washable filters capture dust and lint.
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Sound levels contained thanks to the inverter compressor and balanced fan.
AirGreen sizing and best practices
A high-performance system requires, first of all, the correct sizing and settings adapted to the space.
Room Evaluation
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Analysis of glazed surfaces, solar exposure, envelope (plex/condo/house), ceiling heights.
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Determination of the relevant BTU rating to avoid undersizing (discomfort, stressed compressor) and oversizing (short cycles, residual humidity).
Interior layout
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Avoid blind spots and partitions that block airflow.
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Respect clearances to allow for filter cleaning and annual maintenance.
HVAC Maintenance
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Clean filters every 4 to 8 weeks during periods of heavy use.
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Recommended annual visit : checking connections, measuring parameters, cleaning the exchanger to maintain performance and the warranty .
Deadlines, coordination and cleanliness of the site
Our planning takes into account building constraints: elevator access, time slots, co-ownership.
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Protection of surfaces in the work area.
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Cutting and drilling without excessive dust : tarpaulins and suction.
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Same-day recommissioning , with explanation of modes (Auto, Dry, Heat, Cool) and advice on energy-efficient use .
Pitfalls to avoid (AirGreen feedback)
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Drilling without slope : risk of condensate water backflow inside.
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Uninsulated or overly tense connections : pressure losses, noise, premature wear.
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Outdoor unit confined under a closed balcony: recycling of hot air , drop in performance.
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Approximate sizing : uneven comfort, higher bill.
We anticipate these points from the submission , then during the technical visit and installation.
Grants and eligibility: our support
Depending on the configuration and certified performance of the indoor/outdoor unit pair, a wall-mounted heat pump may be eligible for financial assistance . We verify the exact combination installed for each file and manage the administrative aspects for clients in Montreal, Laval, Longueuil, the North Shore and the South Shore . Our team advises on supporting documents, deadlines and file optimization.
Why choose AirGreen for your project in Rosemont and Greater Montreal?
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Field expertise on multiplexes, condos and single-family homes in the area.
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Finishing standard : neat hoods, clean drilling, accessories chosen for the local climate.
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Responsive after-sales service , HVAC maintenance and inspection reminders.
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Unbiased advice : Zephyr, Fujitsu, Gree, Midea, Sharp, we offer the solution that suits your space and your budget.
Result for our client in Rosemont–La Petite-Patrie
The Zephyr wall-mounted heat pump installed in the living room provides a stable temperature , controlled consumption and a discreet noise level . The aesthetic remains refined; access to the filters is simple, and annual maintenance is planned. This is exactly what we are aiming for: an installation that goes unnoticed, but comfort that is felt every day.
Need a similar system?
We respond quickly in Montreal , Laval , Longueuil , on the North Shore and the South Shore . Our team evaluates your space, recommends the BTU rating and plans a state-of-the-art HVAC installation , with support for grants when the configuration is eligible.
How it goes, from the first call to the end
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.
And at your place?
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.
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.
Which type of equipment for your project?
Pick what looks like your need.
Four mistakes we do not make
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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).