Installation of a Sharp ZU1 Wall-Mounted Air Conditioner in Saint-Eustache
We installed the cutting-edge Sharp ZU1 air conditioner in Saint-Eustache, providing 18,000 BTU of cooling and heating with advanced air purification and energy-efficient performance.
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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
The Perfect Climate Solution for a North Shore Home
In the beautiful town of Saint-Eustache, located on the North Shore of Montreal, our team at AirGreen recently completed a seamless installation of a Sharp ZU1 18,000 BTU wall-mounted air conditioner. This project was particularly exciting due to the combination of cutting-edge technology and an ideal location for showcasing the efficiency and comfort this system brings.
When we arrived at the home in Saint-Eustache, the owners had expressed their concerns about the rising summer temperatures, and they wanted a reliable, energy-efficient solution that could keep their home cool while minimizing energy consumption. After an initial consultation, it was clear that the Sharp ZU1 was the perfect fit for this project.
Why Choose the Sharp ZU1?
The Sharp ZU1 wall-mounted air conditioner is renowned for its reliability, high efficiency, and superior performance, especially in extreme climates. With a cooling capacity of 18,000 BTU and the ability to heat down to -27°C, this unit offers a year-round solution for maintaining a comfortable indoor environment, regardless of the outside temperature.
What sets the Sharp ZU1 apart is its use of the new R-32 refrigerant, which is not only more eco-friendly but also increases the unit's overall energy efficiency by approximately 10% compared to older refrigerants. This makes it an excellent choice for homeowners looking to reduce their environmental impact while saving on energy costs.
Installation Highlights
During this installation, the interior unit was placed strategically above the kitchen cabinets, ensuring optimal air distribution throughout the living space. The sleek and modern design of the Sharp ZU1 allowed it to blend in seamlessly with the home’s aesthetic, contributing both functionality and style.
Our team took great care to ensure that the piping and wiring were concealed and neatly organized, providing the homeowners with a clean, professional look. The exterior unit was mounted in a well-ventilated area outside the home, ensuring long-term efficiency and durability.
With Wi-Fi connectivity included, the homeowners now have the ability to control their air conditioning system from their smartphones, offering convenience and flexibility, especially when managing the unit remotely. The Sharp ZU1 is compatible with Hilo Thermostats, providing further integration into smart home systems and an additional 25% rebate through Hydro-Québec’s LogisVert Grant.
Superior Technology: Plasmacluster and Coanda Airflow
The Sharp ZU1 boasts advanced features, including Plasmacluster technology, which provides superior air purification by eliminating airborne viruses, mold, and allergens. This is a particularly attractive feature for families who prioritize indoor air quality and health. Additionally, the Coanda airflow control ensures that the cooled or heated air is evenly distributed throughout the room, preventing uncomfortable drafts.
With this technology, the homeowners can rest assured that their home is not only temperature-controlled but also filled with purified, fresh air, improving overall comfort and well-being.
Unbeatable Efficiency and Durability
The Sharp ZU1 stands out with an efficiency rating of 24.0 SEER, making it one of the most efficient units available in today’s market. This high-efficiency rating ensures that the homeowners will enjoy significant savings on their energy bills throughout the year.
The anti-corrosive coating on the outdoor unit adds to the system's durability, making it perfect for the extreme weather conditions found in Quebec. Whether it's the coldest winter or the hottest summer, the Sharp ZU1 will continue to perform efficiently and reliably.
Grants and Incentives
Homeowners who choose the Sharp ZU1 can benefit from several grants and incentives that make this system even more attractive:
- Federal Grant: Up to $5,000
- Provincial Grant: Up to $2,640
- Energy Star® Certification: Yes
For those who are environmentally conscious, the Sharp ZU1 aligns perfectly with modern energy efficiency standards, reducing the overall carbon footprint while keeping homes comfortable year-round.
Installation Benefits with AirGreen
At AirGreen, we pride ourselves on delivering professional, high-quality installations that guarantee optimal performance for every system we install. Our team ensures that each unit is installed to manufacturer standards, maximizing efficiency and ensuring longevity.
This installation in Saint-Eustache is yet another example of how we combine technical expertise with customer-focused service. Our commitment to excellence means that homeowners like those in Saint-Eustache can trust us for all their HVAC needs, whether it’s a new air conditioning system, heat pump installation, or ongoing maintenance services.
Final Thoughts
The Sharp ZU1 wall-mounted air conditioner is a perfect solution for homes in Quebec, offering advanced features like Plasmacluster technology and Coanda airflow control, all while being energy-efficient and environmentally friendly. The installation in Saint-Eustache is a great example of how AirGreen can help transform your living space into a haven of comfort, no matter the weather outside.
If you’re looking to upgrade your current system or install a new one, our team is here to help you every step of the way, from choosing the right system to the final installation.
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).