Installation of a Zephyr wall-mounted heat pump in Sainte-Julie
AirGreen installed a Zephyr wall-mounted heat pump in Sainte-Julie, providing comfort and energy efficiency. An exemplary HVAC project carried out by our certified experts.
Take a tour of the installation
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.
A comfort project by AirGreen in a typical South Shore house
At AirGreen , we recently completed a complete installation of a Zephyr wall-mounted heat pump for a single-family residence in Sainte-Julie , on the South Shore of Montreal . This project perfectly illustrates our meticulous approach and expertise in the field of residential heating, ventilation and air conditioning (HVAC) .
The context of the project
Our client wanted to upgrade their air conditioning system to reduce energy consumption and improve their comfort year-round. The old, aging wall-mounted unit was showing several signs of wear:
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insufficient performance during heat waves;
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increased compressor noise;
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increasing electricity consumption.
After a complete evaluation of the residence, our technicians recommended the Zephyr wall-mounted heat pump , a model recognized for its excellent performance-price ratio and its reliability in Quebec climates .
Choosing the Zephyr model: performance and reliability
The Zephyr brand, distributed exclusively by AirGreen , has established itself as a local benchmark in terms of high-performance and durable wall-mounted heat pumps . The model chosen for this project offered:
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a capacity of 12,000 BTU , ideal for the main rooms of the house;
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high energy efficiency thanks to its variable speed compressor (inverter);
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quiet operation (< 22 dB for the indoor unit);
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a compact and elegant design , blending harmoniously into the red brick facade of the house.
Technical installation: precision and aesthetics
Our teams installed the outdoor unit on a galvanized aluminum wall bracket , securely fixed to the concrete foundation. This configuration guarantees:
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better air circulation around the compressor;
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increased protection against snow and moisture ;
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long-term stability , even during spring thaw cycles.
The electrical wiring was carefully integrated into the structure, with a protective casing that complies with CSA and Hydro-Québec standards . The indoor unit was then installed in the living room, positioned to ensure optimal distribution of heat and cold.
Key project milestones
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Site inspection : checking the load-bearing wall, distance from openings and electrical routing.
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Preparation of the support : installation of a raised aluminum base and adjustment of the laser level.
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Zephyr condenser mounting : installation of the outdoor unit with anti-vibration silent blocks.
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Refrigeration connection : brazing under nitrogen and leak test at 450 psi.
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Vacuuming and start-up : Complete evacuation of the system, then commissioning according to the manufacturer's specifications.
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Final checks : check air flow, pressures, and operation in heating and air conditioning modes.
Result: four-season comfort
Following the installation, the customer immediately noticed:
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a more uniform interior temperature , without drafts;
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a significant reduction in noise compared to the old device;
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an estimated energy saving of 30% on the annual electricity bill.
Our technicians took care to explain how the auto mode works, filter maintenance, and best practices for maintaining optimal performance all year round.
Why choose AirGreen for your HVAC projects?
At AirGreen, we stand out for:
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in -depth expertise in residential and commercial HVAC systems;
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certified technicians who are continually trained on new technologies;
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an exclusive range of Zephyr, Fujitsu, Midea, Gree, Mitsubishi and other major brands ;
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a turnkey service , from recommendation to post-installation monitoring.
Maintenance and longevity of the Zephyr heat pump
We also offered the client an annual maintenance plan including:
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complete cleaning of the internal turbine;
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defrosting and checking the condensate drain;
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compressor and refrigeration pressure control;
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disinfection of the coil with an antibacterial solution.
This preventive monitoring ensures an average lifespan of more than 12 years for the heat pump and prevents seasonal drops in performance.
An installation that reflects AirGreen's mission
This project in Sainte-Julie perfectly illustrates our commitment: to offer reliable, aesthetic and energy-efficient HVAC solutions adapted to the Quebec climate. Thanks to the Zephyr wall-mounted heat pump, this family now enjoys four-season comfort , with the peace of mind that comes with an AirGreen -certified installation.
The big day, step by step
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 would it look like 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.
Four mistakes we do not make
Flip each card to see what we do instead.
Your own project, step by step
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.
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.
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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Every house has its constraints. We see them before we install.
The on-site estimate is free and the quote follows within 24 hours.
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).