Sharp wall-mounted heat pump installation in Verdun
In Verdun, we installed a Sharp ZU1 wall-mounted heat pump in a condo, with an outdoor unit raised on the balcony for optimal comfort in summer and winter.
- City
- Region
- Equipment
- Brand
- Challenges
- Published
The job on one screen

The article, chapter by chapter
In Verdun, in a recently built condo near the river, we installed a Sharp wall-mounted heat pump for an owner who wanted both greater comfort and better control over their energy bills. The outdoor unit, visible in the photo, is installed on the balcony, sheltered from the elements while maintaining excellent air circulation.
Project context
The client had an apartment facing full sun. In the summer, the heat accumulated in the living room and bedrooms, making the days stifling and the nights difficult. In the winter, the electric baseboard heaters caused the Hydro-Québec bill to skyrocket.
We recommended adding a Sharp wall-mounted heat pump , a perfect system for:
-
to effectively air-condition the condo during heat waves;
-
to provide stable and economical heating during the typical cold weather in Montreal;
-
improve indoor air quality thanks to the advanced filtration functions of Sharp units.
The project had to respect the constraints specific to condominium buildings: visual discretion, compliance with building management regulations, low noise level and secure installation on the balcony.
The installed unit: Sharp ZU1 wall-mounted heat pump
For this project, we opted for a Sharp ZU1 wall-mounted heat pump with a capacity suited to the unit's size. This range is known for:
-
its inverter technology which continuously modulates the power to optimize energy consumption;
-
its silent operation, essential in a condo environment;
-
its efficient heating mode for Quebec winters;
-
the presence of Ion Plasmacluster technology on the unit, helping to reduce dust and allergens in the indoor air.
Inside, a discreet Sharp wall-mounted unit serves the main living area, with an airflow that also helps to temper adjacent spaces.
Installation details on the balcony
The Sharp outdoor unit is installed on a raised steel bracket securely fixed to the balcony floor. This type of installation offers several advantages:
-
keeping the unit away from the ground to prevent the accumulation of snow, ice and dirt;
-
vibration reduction thanks to the pads and the rigidity of the structure;
-
facilitation of maintenance and annual inspection.
We have taken care to respect the recommended clearance distances around the condenser: air can circulate freely at the front and sides, which is essential for the performance of the heat pump in both cooling and heating modes.
The refrigeration connection and communication cable are protected in a white cover running along the base of the wall. This neat finish:
-
protects pipes against impacts and UV rays;
-
prevents water from seeping into the holes;
-
offers a clean and uniform visual result, important in a condominium setting.
The power supply is connected to a disconnect box installed near the unit, in accordance with current electrical standards. This device allows the power to be quickly shut off during maintenance or emergencies, while remaining discreet on the balcony wall.
Performance and comfort in Verdun
A properly sized Sharp wall-mounted heat pump for a Verdun condo offers tangible benefits from the very first days:
-
Summer comfort : Montreal's heat waves become much more bearable. The heat pump quickly removes accumulated heat and maintains a stable temperature, without strong drafts.
-
Economical heating : During the shoulder seasons and for much of the winter, the Sharp heat pump provides more efficient heating than electric baseboard heaters, reducing overall consumption.
-
Silence : the outdoor unit, designed for low noise levels, is positioned to limit disturbances for both the customer and balcony neighbors.
-
Air quality : Filtration technology contributes to healthier air, a benefit appreciated by occupants sensitive to urban allergens.
Respect for the realities of co-ownership in Verdun
Installing a heat pump in a condominium requires careful coordination:
-
validation of authorized locations on balconies;
-
control of the color and visual style of the equipment;
-
noise and condensation management to avoid disturbing the neighbors.
In this project, we worked in collaboration with the owner and, where necessary, with the condominium association to choose a discreet and compliant location . The condensate drainage was directed in a controlled manner to avoid soiling the balcony below and to prevent any infiltration into the structure.
Sharp Heat Pump Maintenance and Durability
To ensure a long lifespan for the Sharp wall-mounted heat pump installed in Verdun, we recommend:
-
regular cleaning of the internal filters by the owner;
-
an annual professional inspection : checking the refrigerant level, electrical connections, heating performance and the general condition of the condenser;
-
minimal clearance of snow and ice around the outdoor unit in winter, even though the raised support already greatly limits the risks of burial.
With these good practices, the heat pump remains efficient for many years, while maintaining its energy efficiency and comfort.
Why choose AirGreen for a Sharp heat pump in Verdun?
As a company specializing in residential HVAC in Greater Montreal , we are well aware of the specific challenges of neighborhoods like Verdun: high-rise buildings, narrow balconies, condominium regulations, ambient noise, riverside winds, etc.
When we install a Sharp heat pump, we:
-
let's accurately assess the thermal load of your condo;
-
we offer a suitable configuration (power, location, noise level);
-
Let's carry out a clean, safe and compliant installation;
-
We support you with maintenance, after-sales service and any grant applications when available.
This project in Verdun perfectly illustrates our approach: a reliable system, rigorous installation, and lasting comfort for our client .
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.
More jobs to see, near you
By town, by equipment or by region: browse more than 4,700 published projects.
Each dot: a town where AirGreen has published projects. The glowing dot: this job.
An on-site estimate, the right capacity, the right equipment.
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).
