Installation of a SHARP ZU1 Wall-Mounted Heat Pump in Lachine
Explore how the SHARP ZU1 heat pump, installed in Lachine by AirGreen, combines innovation, efficiency, and comfort to transform homes into havens of modern living.
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.
Experience Unmatched Comfort with the SHARP ZU1 Heat Pump
A Perfect Blend of Innovation and Efficiency for Your Home
When AirGreen set out to install the state-of-the-art SHARP ZU1 wall-mounted heat pump at a residence in Lachine, our goal was simple: to deliver superior comfort with cutting-edge technology. This project wasn’t just another installation; it was an opportunity to bring modern energy efficiency and advanced climate control to a delighted homeowner.
Why the SHARP ZU1 is a Game-Changer
The SHARP ZU1 15,000 BTU model isn’t your average wall-mounted heat pump. It’s a powerhouse of innovation, built to handle the extremes of Quebec’s climate with grace and reliability. Boasting a heating capacity down to -27°C, this machine thrives in even the harshest winters, ensuring warm, cozy interiors no matter how frosty it gets outside.
But it’s not just about heat. With a 24.0 SEER efficiency rating, this unit excels at cooling during those humid summer months, while consuming less energy and saving money. Its compatibility with the $2,172 LogisVert Grant makes it an exceptional choice for eco-conscious homeowners looking for sustainable, affordable solutions.
A Seamless Installation in Lachine
This particular project in Lachine was a showcase of AirGreen’s expertise. The sleek exterior unit was mounted securely to the brick facade, ensuring optimal airflow and minimal vibration. The precision in piping installation, which included 1/4" and 3/8" pipes, and the use of R-32 refrigerant—a greener alternative that reduces greenhouse gas emissions—underscored our commitment to quality and sustainability.
The indoor unit, with its streamlined dimensions (41.42 x 9.80 x 12.44 inches), was positioned strategically to ensure uniform air distribution across the living space. With its whisper-quiet operation, the homeowner was thrilled to find that the unit maintained a serene environment, with indoor noise levels as low as 23 dB(A).
Revolutionary Features for Maximum Comfort
Plasmacluster Technology: Superior Air Quality
The SHARP ZU1 isn’t just about temperature control—it’s about air quality, too. Its Plasmacluster Ion Technology actively eliminates airborne viruses, mold, and allergens, creating a healthier living environment. The homeowner was particularly impressed by its ability to neutralize odors, including those from cooking or pets, leaving the home feeling fresh and inviting.
Coanda Airflow Control: Comfort Without Compromise
Say goodbye to uncomfortable drafts! The Coanda Airflow technology directs warm or cool air along walls and ceilings, ensuring even temperature distribution without blowing directly on occupants. This intelligent airflow system guarantees a balanced climate throughout the home, even reaching those tricky corners.
Durability Designed for Quebec Winters
The SHARP ZU1’s robust design includes a Hot Gas Pipe System that prevents the outdoor unit from freezing, a crucial feature for our freezing winters. The multiple drainage holes in the outdoor unit ensure efficient water evacuation, reducing the risk of ice buildup. Additionally, the anti-corrosive coating protects the compressor, promising years of reliable performance.
Smart Connectivity for Modern Living
With built-in WiFi, the SHARP ZU1 offers unparalleled convenience. The homeowner can now control the unit remotely via a smartphone app, adjusting settings, monitoring energy consumption, and even receiving notifications about room occupancy or system performance. This smart integration makes climate control effortless and energy-efficient.
Eco-Friendly Refrigerant for a Greener Tomorrow
The transition to R-32 refrigerant reflects SHARP’s commitment to environmental sustainability. Not only does it have a lower global warming potential, but it also enhances the efficiency of the unit, reducing energy consumption by up to 10%.
What Sets AirGreen Apart?
At AirGreen, we’re not just HVAC experts—we’re partners in creating comfortable, sustainable homes. From our meticulous installation process to our dedication to customer satisfaction, every project reflects our passion for excellence.
This installation in Lachine is a testament to our commitment to combining innovative technology with expert craftsmanship. Whether it’s a compact condo or a sprawling family home, we tailor each installation to meet the unique needs of our clients, ensuring optimal performance and long-term satisfaction.
Ready to Transform Your Home?
If you’re considering upgrading your HVAC system, the SHARP ZU1 wall-mounted heat pump is a choice you won’t regret. Backed by a 10-year warranty on parts, compressor, and labor, it’s a worry-free investment in your home’s comfort and efficiency.
Contact AirGreen today to learn more about our services and discover why we’re the trusted choice for HVAC installations across Montreal, Laval, Longueuil, North Shore, and South Shore.
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).