Installation of a SHARP ZU1 Wall-Mounted Heat Pump in Deux-Montagnes
Explore how AirGreen transformed a Deux-Montagnes home with the SHARP ZU1 heat pump—eco-friendly, whisper-quiet, and 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.
Bringing Comfort and Efficiency to a Family Home with the SHARP ZU1 15,000 BTU Mini Split System
When it comes to enhancing indoor comfort while embracing eco-conscious solutions, nothing beats the performance and reliability of the SHARP ZU1 Wall-Mounted Heat Pump. At AirGreen, we recently completed a remarkable installation in Deux-Montagnes, where this top-tier 15,000 BTU unit proved to be the perfect choice for a homeowner looking to optimize heating and cooling efficiency year-round.
The Customer's Challenge: Comfort Meets Quebec's Extreme Weather
The homeowners in Deux-Montagnes reached out to AirGreen with a clear goal: they wanted a reliable, efficient heating and cooling system that could handle Quebec’s brutal winters and hot summers. Their existing HVAC setup was outdated, noisy, and inefficient. They needed a modern solution to ensure their home remained cozy at temperatures as low as -27°C and pleasantly cool during summer heatwaves.
Why the SHARP ZU1 Was the Perfect Fit
The SHARP ZU1 Heat Pump was chosen not only for its energy efficiency but also for its ability to qualify for the $2,172 LogisVert Grant, the highest incentive available for any 15,000 BTU heat pump. This financial advantage made the investment in cutting-edge HVAC technology even more appealing for our customer.
Key Features of the SHARP ZU1:
- Cooling Capacity: 15,000 BTU
- Heating Capacity: Operates flawlessly at temperatures as low as -27°C
- Efficiency: Industry-leading 24.0 SEER, ensuring significant energy savings
- Noise Levels: Whisper-quiet performance with interior noise as low as 23 dB(A)
- Eco-Friendly Refrigerant: Utilizes the R-32 refrigerant, reducing greenhouse gas emissions
- Smart Connectivity: Equipped with WiFi for remote operation via smartphone
Installation Details: Precision and Expertise
Our team approached the installation with meticulous attention to detail to ensure optimal performance and longevity for the system. Here’s how the process unfolded:
Step 1: Planning and Preparation
After an in-depth consultation, we assessed the home’s layout to determine the ideal placement for the indoor unit and the outdoor compressor. The compact dimensions of the indoor unit (41.42" x 9.80" x 12.44") made it a perfect fit for the living room wall, while the outdoor unit (30.72" x 10.59" x 21.25") was strategically placed to minimize exposure to snow and wind.
Step 2: Installation of Piping and Electrical Wiring
Using high-quality materials, we installed the 1/4-3/8 pipes and ensured proper insulation to prevent any energy loss. The electrical setup was connected to a 220V supply, fully adhering to safety standards.
Step 3: Mounting the Units
The indoor unit was securely mounted on an orange-accented feature wall, blending modern technology with the home’s aesthetic. The outdoor unit was positioned with additional drainage holes to prevent freezing during defrost cycles—a key feature for Quebec winters.
Step 4: System Testing and Optimization
Once installed, we ran a series of tests to ensure the system was performing at peak efficiency. The customer particularly appreciated the Coanda airflow control and Plasmacluster air purification, which delivered clean, evenly distributed air throughout their home.
Unique Technologies That Set the SHARP ZU1 Apart
Plasmacluster Air Purification
This exclusive SHARP technology neutralizes airborne bacteria, mold, and viruses, ensuring healthier indoor air. With the Plasmacluster feature, the homeowners can enjoy a fresher environment that actively combats allergens and odors.
Coanda Airflow Control
By leveraging the natural Coanda effect, this heat pump ensures uniform heating and cooling across the home. The innovative flap design directs air along ceilings and walls, avoiding direct drafts while maintaining a perfectly balanced temperature.
Defrost and Anti-Freeze Capabilities
The Hot Gas Pipe System and multiple drainage holes prevent the outdoor unit from freezing, even in sub-zero conditions. This feature ensures uninterrupted heating during the harshest winter nights.
The Result: Comfort, Savings, and Sustainability
The homeowners were thrilled with the installation, noting the significant reduction in noise levels compared to their previous system. Thanks to the Energy Star® certification and inverter technology, they can now look forward to lower energy bills and a reduced environmental footprint. With the added peace of mind from the 10-10-10 warranty (10 years for the compressor, parts, and labor), they’re confident in their investment for years to come.
Why Choose AirGreen for Your HVAC Needs?
At AirGreen, we specialize in delivering tailored HVAC solutions for homes across Montreal, Laval, Longueuil, North Shore, and South Shore. With years of expertise and a commitment to customer satisfaction, we ensure every project exceeds expectations. Whether you need a new installation, maintenance, or repairs, our team is here to help you achieve the ultimate in comfort and efficiency.
Ready to Upgrade Your HVAC System?
If you’re considering a mini split heat pump like the SHARP ZU1, contact us today! Our team of professionals is ready to guide you through the process, from selecting the right unit to securing grants and completing a flawless installation.
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.
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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).