Installation of a Sharp ZU1 Wall-Mounted Heat Pump in Ahuntsic-Cartierville
Elevate home comfort with the Sharp ZU1 Heat Pump in Ahuntsic-Cartierville – energy-efficient, eco-friendly, and expertly installed by AirGreen.
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The job on one screen
The unit’s data sheet
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 article, chapter by chapter
Revolutionizing Comfort with High-Tech HVAC Solutions
When it comes to enhancing the comfort of your home with cutting-edge technology and energy efficiency, AirGreen is at the forefront of HVAC solutions in Montreal, Laval, Longueuil, and the surrounding areas. Our latest project in Ahuntsic-Cartierville exemplifies our commitment to providing top-tier HVAC technology with the installation of the Sharp ZU1 Wall-Mounted Heat Pump. This system not only delivers exceptional heating and cooling but does so with remarkable energy efficiency and minimal environmental impact.
Project Overview
Situated atop a residential building in Ahuntsic-Cartierville, this installation was strategically chosen for its optimal positioning, ensuring maximum exposure for efficient heat transfer. The Sharp ZU1, known for its robust performance and sleek design, was mounted on the roof to capitalize on the unobstructed air flow, crucial for the eco-inverter's operation. This particular model, rated at 18,000 BTU, is perfect for Montreal’s diverse climate, capable of providing comfort during both the sweltering summers and frigid winters.
Why Sharp ZU1?
- Eco-Friendly Technology: Utilizing the latest R-32 refrigerant, the Sharp ZU1 is at the forefront of eco-friendly HVAC solutions. This choice not only reduces the unit's carbon footprint but also enhances its efficiency, aligning perfectly with the modern homeowner’s environmental concerns.
- Plasmacluster Ion Technology: This unique feature sets the Sharp ZU1 apart, offering superior air purification that eliminates bacteria, viruses, and allergens, making it a top choice for health-conscious individuals.
- Energy Efficiency: With a 24.0 SEER rating, this model promises significant energy savings, which translates into lower electricity bills and a reduced environmental impact over the lifespan of the unit.
Key Features of the Sharp ZU1
The Sharp ZU1 Heat Pump incorporates several advanced features that make it a standout choice for homeowners:
- WiFi Enabled: Manage your home’s comfort from anywhere with the integrated WiFi feature, allowing for real-time adjustments and monitoring.
- Sound Pressure Level: At just 52 dB(A) externally and 25-49 dB(A) internally, it operates quieter than many traditional models, ensuring a disturbance-free home environment.
- AHRI Certified: With certification number 213246053, this model meets strict performance and safety standards.
- Warranty and Support: The extended warranty of 10-10-10 (Compressor-Parts-Labor) provided directly by the manufacturer underscores the reliability and trust in the Sharp brand.
Unique Installation Challenges
The installation of the Sharp ZU1 on the rooftop posed unique challenges, particularly with the logistical aspects of securing the unit at a height. Ensuring stability and vibration minimization were paramount, requiring custom solutions such as specialized mounting brackets and vibration dampeners. These measures guarantee the longevity and optimal performance of the unit, safeguarding against potential damage from environmental factors.
Customer Satisfaction and Environmental Impact
This project highlights our commitment to customer satisfaction and environmental stewardship. The Sharp ZU1 not only meets but exceeds the LogisVert program standards set by Hydro-Québec, qualifying our customer for a $2,640 grant due to its high energy efficiency and reduced ecological footprint.
Conclusion: A Benchmark for Future Installations
Our successful installation of the Sharp ZU1 Wall-Mounted Heat Pump in Ahuntsic-Cartierville sets a new benchmark for residential HVAC solutions. At AirGreen, we are dedicated to leveraging technology to enhance comfort and efficiency while maintaining our commitment to environmental sustainability. This project is a testament to our expertise and dedication to excellence in HVAC installations.
The job tools
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.
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.
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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).