Installation of a SHARP ZU1 12,000 BTU Wall-Mounted Heat Pump in Longueuil: Performance, Discretion, and Long-Lasting Comfort
Flawless installation of a SHARP ZU1 12,000 BTU wall-mounted heat pump in Longueuil. Sleek, discreet, high-performance unit with integrated Plasmacluster air purification and smart connectivity.
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 highly efficient HVAC solution, perfectly suited to Quebec's climate
At AirGreen, we take pride in offering HVAC solutions that are durable, high-performing, and seamlessly integrated into both residential and commercial interiors. In that spirit, we recently completed the installation of a SHARP ZU1 12,000 BTU wall-mounted heat pump in a Longueuil home, located on the South Shore. This project is a perfect example of our technical expertise, attention to detail, and our ability to tailor every installation to the unique needs of our clients.
Why choose a SHARP ZU1 wall-mounted heat pump in Longueuil?
The SHARP ZU1 12,000 BTU model is part of the ductless dual-unit wall-mounted systems that combine cutting-edge technology, outstanding energy efficiency, and visual discretion. Equipped with environmentally friendly R-32 refrigerant and SHARP’s exclusive Plasmacluster technology, this heat pump delivers year-round thermal comfort while purifying the ambient air.
Key features of the installed model:
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Cooling capacity: 12,000 BTU/h (range of 2,800 to 13,600 BTU/h)
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Heating capacity: 14,000 BTU/h (up to 7,200 BTU/h at -27 °C)
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Energy efficiency: SEER rating of 21 / HSPF up to 12.5
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Refrigerant: R-32, low environmental impact
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Plasmacluster technology: built-in air purification
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Reliable operation down to -27 °C
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Airflow control: automatic vertical, manual horizontal
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Indoor noise level: as low as 23 dB
A clean, optimized installation for aesthetics and comfort
For this Longueuil project, our client wanted a quiet, efficient, and visually discreet system that would not disrupt the room’s decor. Our team performed a high, ceiling-adjacent installation, aligning with the room’s contours. The result: a barely noticeable unit with a sleek finish, thanks to a well-integrated cable cover running along the ceiling.
This layout also allows for optimal air distribution through the Coanda-style airflow, which pushes cold air across the ceiling, providing comfort without direct drafts.
Project challenges and our approach
This home featured thick load-bearing walls and narrow angles, requiring precise planning for running electrical cables and refrigerant lines. Our technicians used strategic drilling through the existing structures to minimize visual impact indoors. The proximity to the electrical panel also enabled an efficient hookup while fully complying with local electrical codes.
A smart, connected, and safe appliance
The SHARP ZU1 installed in Longueuil is compatible with smart assistants like Google Home and Alexa, allowing for voice and app-based control. It also offers smart alerts, sleep-time temperature scheduling, and energy usage tracking for responsible comfort management.
Warranty, maintenance, and peace of mind
The SHARP ZU1 heat pump is eligible for a warranty of up to 10 years on parts, the compressor, and even labor (based on manufacturer and contractor terms). At AirGreen, we also offer custom annual HVAC maintenance plans to ensure optimal performance and extended lifespan.
Proven air purification technology
Thanks to its patented Plasmacluster system, the SHARP heat pump neutralizes:
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Airborne bacteria and viruses
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Mold spores
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Common household allergens (dust mites, pollen, etc.)
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Lingering odors (tobacco, pets, cooking)
This makes the unit a true built-in air purification system, especially beneficial for families with children or sensitive individuals.
Why choose AirGreen for your heat pump installation in Longueuil?
For years, we’ve been a trusted partner for wall-mounted heat pump installations in Montréal, Laval, Longueuil, the North Shore, and the South Shore. Our promise:
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Professional, code-compliant installation
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Transparent, tailored advice
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Reliable and accessible after-sales service
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Assistance with grant applications (LogisVert, Chauffez Vert, etc.)
We understand that every home is unique. That’s why every project we take on is carefully crafted, taking into account building structure, lifestyle habits, and energy goals.
Grant eligibility and long-term savings
This installation is potentially eligible for Hydro-Québec’s LogisVert grant, which can go up to $1,287 for this specific model, depending on its energy efficiency ratings (SEER/HSPF) and the homeowner’s address. In addition, the use of R-32 refrigerant and DC inverter motor technology provides up to 30% energy savings compared to older R-22 or R-410A systems.
Client testimonial
"We were looking for a quiet, efficient, and discreet solution for our living room, and we were pleasantly surprised by the quality of AirGreen’s service. The SHARP system is practically silent and the air feels much cleaner. Thanks to the whole team!"
— Mrs. Beaulieu, Longueuil
Conclusion: A modern and sustainable heating and cooling solution
The installation of this SHARP ZU1 12,000 BTU wall-mounted heat pump in Longueuil is a perfect representation of what we do best at AirGreen: delivering customized, eco-efficient, technologically advanced, and aesthetically integrated solutions. Whether you’re replacing an old unit, building a new home, or undertaking a major renovation, we’re here to support your project from start to finish with precision and care.
Are you in Longueuil, Montréal, or nearby?
Get in touch with us today for a free quote or a technical consultation for your HVAC project. Together, let’s transform your indoor comfort!
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 |
|---|---|---|---|---|---|---|---|
| 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).