Installation of a SHARP ZU1 15,000 BTU Wall-Mounted Heat Pump in Longueuil: Discreet and Efficient Performance by AirGreen
Professional installation of a SHARP ZU1 15,000 BTU wall-mounted heat pump in Longueuil by AirGreen. Comfort, energy savings, air purification with Plasmacluster. Perfect for Quebec winters.
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.
In a lovely residential area of Longueuil, our expert AirGreen team recently completed the installation of a SHARP ZU1 15,000 BTU wall-mounted heat pump, a high-performing and elegant unit perfectly suited to the comfort needs of an upper-level apartment. With its sleek design and advanced technology, this unit strikes the perfect balance between energy efficiency, air purification, and optimal comfort—even during the harshest Quebec winters.
A heat pump designed for Quebec winters
The SHARP ZU1 Series was engineered to withstand the extreme climate of Northern Canada. This unit is certified for extreme cold, capable of delivering consistent heating even at -27°C. This specific model — AY-XP15ZU1 paired with the AE-X15ZU1 outdoor unit — boasts impressive specs:
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Cooling capacity: 15,000 BTU (5,000 to 17,000 BTU)
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Heating capacity: 18,000 BTU (4,500 to 21,800 BTU)
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Energy efficiency: SEER 24 | HSPF (IV) 11.8 | HSPF (V) 9.5
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Eco-friendly refrigerant: R-32 (low GWP)
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Warranty: Up to 10 years on compressor, parts, and labor (based on contractor)
A seamless and stylish design
This Longueuil installation showcases one of the SHARP ZU1’s main advantages: a compact, wall-mounted design that integrates perfectly with any interior decor. Installed above a full-height mirror in a bright hallway, the indoor unit was strategically placed to ensure optimal air circulation throughout the adjacent rooms.
We used specialized, low-vibration brackets to ensure quiet operation, with sound levels as low as 26 dB on low fan speed. This smart placement also prevented any direct airflow onto occupants, enhancing the overall comfort with a soft and indirect air distribution.
A precise, fast, and clean installation
At AirGreen, every project is unique. This job included:
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Installing a reinforced wall bracket
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Drilling through the slab to route refrigerant lines and electrical wiring
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Connecting power between indoor and outdoor units, in full CSA compliance
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Pressure testing and vacuuming per industry standards
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Wi-Fi configuration so the client could control the unit remotely
All of this was completed in a single day, with meticulous attention paid to cleanliness and detail. The client immediately experienced the system’s efficiency in both cooling and heating modes.
Japanese technology for cleaner indoor air
This ZU1 model features SHARP’s renowned exclusive Plasmacluster technology, a major innovation in indoor air purification. This system generates positive and negative ions that:
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Eliminate airborne viruses and bacteria
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Remove mold spores
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Neutralize persistent odors (tobacco, cooking, pets)
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Reduce household allergens
In addition to Plasmacluster, the heat pump includes a triple filtration system with a washable pre-filter, an antimicrobial HEPA filter, and a charcoal deodorizing filter. As a result, this heat pump functions as a true air purifier, ideal for families with allergy sensitivities.
Real energy savings
One of our client’s top priorities was to cut heating costs, while maintaining consistent comfort throughout the winter. Thanks to its high-efficiency DC motor and inverter compressor, the SHARP ZU1:
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Automatically adjusts its power based on thermal demand
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Maintains stable indoor temperature without fluctuations
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Lowers electricity usage by up to 30% compared to conventional heating systems
Rebates and energy-efficiency program eligibility
The SHARP ZU1 heat pump qualifies for several rebate programs, including:
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Hydro-Québec’s LogisVert Program (subject to efficiency and eligibility criteria)
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Chauffez Vert Program (if replacing an oil heating system)
At AirGreen, we guide our clients through every administrative step to maximize available incentives. In this case, we helped the homeowner initiate a rebate request potentially worth over $2,000 in reimbursement.
An exemplary installation, a satisfied customer
Our Longueuil client reached out after comparing several brands and contractors. What made the difference?
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Our team’s responsiveness
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Our in-depth knowledge of SHARP heat pumps
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Our transparent estimates and technical recommendations
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Our attention to detail and no-compromise approach to quality
At the end of the installation, the client told us: “I never thought a wall-mounted heat pump could make such a difference in the air. Not only is it quiet and efficient, but I can genuinely feel the air is fresher and cleaner.”
Why choose AirGreen for your installation in Longueuil?
We are a local company specializing in HVAC system installations (heating, ventilation, air conditioning) throughout Longueuil, Montreal, Laval, South Shore, and North Shore. Our reputation is built on:
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Certified and experienced installers
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Expertise with all heat pump models, ductless and central
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Honest advice, never overselling
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Responsive, courteous after-sales support
Practical tips for a successful installation
Before planning your wall-mounted heat pump project, here are a few pro tips from AirGreen:
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Choose a strategic location: ideally high on the wall and centrally located in your comfort zone
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Verify the necessary BTU capacity based on the space you want to heat/cool
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Prioritize brands with AHRI and ENERGY STAR certification
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Work with a certified installer who can help you access every possible rebate
In summary
This installation of a SHARP ZU1 15,000 BTU wall-mounted heat pump in Longueuil proves it’s possible to combine cutting-edge technology, comfort, and environmental responsibility—all in a compact and elegant unit. With reliable operation down to -27°C, Plasmacluster air purification, and superior energy performance, this system is one of the smartest choices on the current market.
At AirGreen, we take pride in offering tailored installations that fit your lifestyle and your budget.
The unit on this job, in figures
The range as published on airgreen.ca: pick a size to see its capacity in deep cold.
| Size | Heating at −8 °C | Heating at −15 °C | Coldest certified point | COP at −15 °C | SEER | HSPF | Indicative LogisVert aid |
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| Sharp ZU1 12 000 | 14,500 | 12,000 | −27 °C: 7,200 | 2.11 | 22.0 | 11.0 | $1,740 |
| Sharp ZU1 15 000 | 18,100 | 15,300 | −27 °C: 10,100 | 2.1 | 24.0 | 11.0 | $2,172 |
| Sharp ZU1 18 000 | 22,000 | 18,000 | −27 °C: 11,500 | 2.2 | 24.0 | 11.0 | $2,640 |
| Sharp ZU1 24 000 | 22,400 | 19,000 | −27 °C: 12,300 | 2.2 | 22.0 | 11.0 | $2,688 |
According to NEEP, it delivers 14,500 BTU/h at −8 °C (17 °F), more than at 8 °C (14,000 BTU/h). It heats as hard in moderate cold as in mild weather.
According to NEEP, its certified maximum capacity at −27 °C (−17 °F) is 7,200 BTU/h, 60% of its nominal 12,000 BTU size.
At 8 °C, its certified maximum capacity reaches 17,100 BTU/h, 42% more than its nominal 12,000 BTU size.
According to NEEP, it delivers 18,100 BTU/h at −8 °C (17 °F), more than at 8 °C (18,000 BTU/h). It heats as hard in moderate cold as in mild weather.
According to NEEP, its certified maximum capacity at −27 °C (−17 °F) is 10,100 BTU/h, 67% of its nominal 15,000 BTU size.
At 8 °C, its certified maximum capacity reaches 21,800 BTU/h, 45% more than its nominal 15,000 BTU size.
According to NEEP, it delivers 22,000 BTU/h at −8 °C (17 °F), more than at 8 °C (21,600 BTU/h). It heats as hard in moderate cold as in mild weather.
According to NEEP, its COP at −27 °C is 1.88: the highest of the ZU1 line, which ranges from 1.79 to 1.82 at that temperature.
According to NEEP, its certified maximum capacity at −27 °C (−17 °F) is 11,500 BTU/h, 64% of its nominal 18,000 BTU size.
At −27 °C, its certified minimum capacity is 3,200 BTU/h (5,500 at 8 °C). It slows down instead of cycling on and off.
According to NEEP, its certified heating capacity at −15 °C (5 °F) is 19,000 BTU/h, 79% of its nominal 24,000 BTU size. Its COP there is 2.20.
Data read live from the airgreen.ca page of each size (NEEP / AHRI certified performance). When the title names the installed size, it is highlighted; otherwise the whole range is shown. The aid shown is today’s, using Hydro-Québec’s rule ($120 per 1,000 BTU/h at −8 °C); amounts quoted in the article date from its publication. Only Hydro-Québec confirms the assistance granted.
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.
Baseboards and electric furnaces turn 1 kWh of electricity into 1 kWh of heat. A heat pump delivers more: that is its COP. At Hydro-Québec’s rate D (11.142¢/kWh above 40 kWh a day, since 1 April 2026):
Hydro-Québec: a heat pump can be up to three times more efficient than baseboards for heating in the colder months.
Estimate per kWh of heat, at the chosen temperature, using the certified COP from the product page. Taxes, access charge and backup heat not included.
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.
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.
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).