Wall-mounted Sharp ZU1 12,000 BTU Heat Pump Installed in Town of Mount Royal: A High-End and Efficient HVAC Solution
Installation of a Sharp ZU1 12,000 BTU wall-mounted heat pump in Town of Mount Royal by AirGreen. Reliable down to -27°C, built-in Plasmacluster air purification, Wi-Fi enabled, and highly energy efficient. Comfort, quiet, and performance in one.
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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
A high-performance wall-mounted heat pump in a residential home in Town of Mount Royal
In a charming home located in the Town of Mount Royal, our AirGreen team recently completed the installation of a Sharp ZU1 12,000 BTU wall-mounted heat pump, an HVAC heating and cooling system that combines energy efficiency, air purification technology, and discreet design. This project reflects our ongoing commitment to providing customized, high-performance solutions to our clients in Montréal, Laval, Longueuil, and across the North Shore and South Shore.
Project context and client’s needs
The client was looking for a compact, ultra-quiet wall unit to ensure year-round comfort in their home office. Given the spatial constraints – a wall beside a window and close to an audio system – it was essential to choose a unit that is quiet, efficient in winter, and equipped with advanced filtration technology. The Sharp ZU1 model was the perfect fit.
Technical details of the SHARP ZU1 12,000 BTU heat pump
Key specifications of the AY-XPC12ZU / AE-X12ZU1 model:
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Cooling capacity: 12,000 BTU/h
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Maximum heating capacity at -27 °C: 7,200 BTU/h
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Refrigerant used: R-32, environmentally friendly
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SEER: 21 to 22 (depending on conditions)
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HSPF: Up to 12.5
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Sound level (indoor unit): as low as 23 dB, ideal for quiet environments
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Compact dimensions: only 34.6" wide
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R-32 refrigerant: over 30% lower global warming potential (GWP) than R-410A
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Heating operation range: Down to -27 °C, perfect for Québec winters
A custom installation in Town of Mount Royal
Installing this SHARP wall unit required precision work, especially given the proximity of a wall-mounted audio system. We ensured:
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Minimal sound impact through strategic placement of the wall unit.
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Optimal air circulation, unobstructed by furniture or window coverings.
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Discreet condensate drainage system, preventing any water damage or visual clutter.
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Clean refrigerant and electrical connections, for an aesthetic and long-lasting result.
Our team conducted full post-installation testing, including leak checks and temperature calibration, to ensure optimal performance from the very first use.
Exclusive advantages of the SHARP ZU1 series
1. Built-in Plasmacluster Technology
This patented SHARP technology purifies ambient air by releasing positive and negative ions that eliminate:
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Airborne viruses and bacteria
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Mold and airborne allergens
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Persistent odors (tobacco, pets, cooking)
2. Extreme cold performance
Thanks to its Inverter compressor and a design built for northern climates, the SHARP ZU1 delivers reliable heating down to -27°C, an essential feature for the harsh winters of Montréal and surrounding areas.
3. Energy savings
The combination of R-32 refrigerant and a DC Inverter motor gives this heat pump excellent energy efficiency. Less energy use, more comfort.
4. Ease of use
Compatible with Google Assistant and Amazon Alexa, this unit is Wi-Fi enabled and controllable via smartphone. The client also benefits from a user-friendly app to:
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Manage settings remotely
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Track energy consumption
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Set custom temperature schedules
Why choose AirGreen for your HVAC installation in Town of Mount Royal?
At AirGreen, we combine technical expertise, precision installation, and personalized service. For this project in the Town of Mount Royal, we:
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Recommended a unit perfectly suited to the client’s needs and space
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Carried out a clean and professional installation
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Provided a full walkthrough of how to use and maintain the system
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Verified the eligibility for provincial rebates for energy-efficient heat pumps
Our in-depth knowledge of SHARP products and their performance in Québec’s climate allowed us to deliver exactly what the client needed.
Rebates and warranty
LogisVert rebate from Hydro-Québec:
The SHARP ZU1 12,000 BTU model is eligible for the LogisVert rebate, which helped our client significantly reduce their total installation cost.
Warranty:
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10-year compressor warranty
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10-year parts warranty
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10-year labor warranty (when installed by a certified contractor like AirGreen)
Results that met every expectation
Just hours after the installation, the client confirmed:
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The room temperature stabilized quickly
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The unit was extremely quiet, even at full capacity
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The indoor air quality had noticeably improved
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Remote control through the mobile app was intuitive and simple
Conclusion: A high-quality HVAC installation built for Québec winters
This installation of a Sharp ZU1 12,000 BTU wall-mounted heat pump in Town of Mount Royal shows how a well-chosen HVAC system, installed by AirGreen’s experienced professionals, can deliver unmatched comfort all year long, even in the coldest temperatures. With its sleek design, advanced features, and energy-efficient operation, this heat pump fully meets the needs of even the most discerning clients.
Do you live in Montréal, Laval, Longueuil, or on the North or South Shore and want to install a top-tier wall-mounted heat pump like the SHARP ZU1? Contact us today. At AirGreen, we’re committed to providing you with HVAC solutions that are long-lasting, high-performance, and adapted to your everyday life.
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).