Installation of a Sharp ZU1 Wall-Mounted Heat Pump in Laval
Discover how AirGreen installed the eco-friendly Sharp ZU1 wall-mounted heat pump in Laval, providing energy-efficient heating and cooling along with advanced air purification for a healthier home.
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.
At AirGreen, we take pride in delivering top-tier HVAC solutions throughout Montreal, Laval, Longueuil, and the North and South Shores. Recently, we had the opportunity to install a cutting-edge Sharp ZU1 wall-mounted heat pump at a residential property in Laval. This powerful and energy-efficient system promises to enhance the comfort of the home with optimal heating and cooling performance.
Sharp ZU1 Heat Pump: Eco-Friendly and Energy Efficient
The Sharp ZU1 is one of the most advanced wall-mounted heat pumps on the market, offering both exceptional heating and cooling capabilities. What makes this system stand out is its use of R-32 refrigerant, which is not only more environmentally friendly but also complies with the upcoming 2025 energy efficiency regulations.
The Sharp ZU1 delivers a cooling capacity of 18,000 BTU, perfect for providing refreshing air during the summer heatwaves. Its heating capacity is equally impressive, continuing to operate efficiently even in extreme cold, withstanding temperatures as low as -27°C. These features make the Sharp ZU1 a powerful and reliable choice for homes in Quebec, where weather conditions can vary greatly throughout the year.
Why Laval Homeowners Chose the Sharp ZU1
This installation in Laval was driven by the homeowner’s need for a system that could ensure year-round comfort without compromising on energy efficiency. Laval, with its mix of cold winters and hot summers, requires a heat pump that can withstand the elements while maintaining performance. The Sharp ZU1 was the perfect fit.
The homeowners were also thrilled to learn that their new system qualified for a $2,640 LogisVert Grant from Hydro-Québec, making it an even more attractive option. This grant makes the Sharp ZU1 a cost-effective solution, combining initial affordability with long-term energy savings.
Technical Specifications of the Sharp ZU1
- Cooling Capacity: 18,000 BTU
- Heating Capacity: -27°C
- Efficiency: 24.0 SEER (Seasonal Energy Efficiency Ratio)
- Warranty: 10 years on the compressor, 10 years on parts, 10 years on labor
- Pipes: 1/4 - 3/8
- Voltage: 220V
- Interior Unit Dimensions (L x D x H): 41.42 x 9.80 x 12.44 inches
- Exterior Unit Dimensions (L x D x H): 33.47 x 13 x 27.94 inches
- Sound Pressure Level (Interior): 25 / 49 dB(A)
- Sound Pressure Level (Exterior): 52.0 dB(A)
- Refrigerant Type: R-32
With these impressive technical capabilities, the Sharp ZU1 offers homeowners the perfect balance between high performance and energy conservation. The Energy Star® certification ensures that the system meets the highest standards of energy efficiency, saving homeowners money on their electricity bills while reducing their carbon footprint.
Advanced Air Purification with Plasmacluster Technology
The Sharp ZU1 isn’t just about heating and cooling. It also offers state-of-the-art air purification through Plasmacluster Technology. This unique feature eliminates airborne bacteria, viruses, and mold, ensuring a healthier indoor environment. For families in Laval, where indoor air quality is just as important as temperature control, this is a game-changer.
Key Benefits of Plasmacluster Technology:
- Eliminates airborne viruses and bacteria
- Fights mold and odors
- Neutralizes allergens, ensuring cleaner air
- Maintains optimal humidity levels in the home
The Plasmacluster mechanism diffuses ions into the air, which helps neutralize harmful contaminants, leaving the indoor environment fresh and healthy. This makes the Sharp ZU1 ideal for households with allergies or sensitivities to poor air quality.
Comfort and Control: Coanda Airflow and WiFi Connectivity
At AirGreen, we understand that comfort isn’t just about temperature—it’s about how that temperature is delivered. The Coanda Airflow Control system used in the Sharp ZU1 ensures that air circulates evenly throughout the space without blowing directly on the occupants. This creates a more comfortable environment where rooms are evenly heated or cooled.
The long diffuser flap can direct airflow up to 15 meters, ensuring that even large rooms receive consistent air distribution. This technology, combined with the four-way sweeping mechanism, ensures that the air is spread in all directions—horizontally, vertically, and to the left and right—making sure that every corner of the home is kept comfortable.
In addition to airflow control, the Sharp ZU1 comes equipped with WiFi connectivity, allowing homeowners to control the system remotely using their smartphone. With real-time monitoring of temperature and humidity levels, users can make adjustments from anywhere, ensuring their home is always at the perfect temperature when they return.
Installation in Laval: A Smooth and Efficient Process
Our team at AirGreen takes pride in providing seamless installations. For this project, we ensured the Sharp ZU1 heat pump was installed to optimize performance and aesthetics. The exterior unit was securely mounted on a sturdy platform, ensuring stability and proper drainage during the winter months. The interior unit was installed in a central location within the home to maximize airflow and ensure the most even distribution of air.
During the installation process, our technicians also ensured that the unit was correctly connected to the electrical system, following all safety guidelines to prevent any future issues. We also explained the system’s operation to the homeowner, walking them through the WiFi setup and demonstrating the Coanda Airflow feature to ensure they were completely comfortable with their new system.
Benefits of Choosing AirGreen for HVAC Installations:
- Expert knowledge of HVAC systems tailored to Quebec’s climate
- Seamless installation process with attention to detail
- Systems that qualify for significant government rebates and grants
- Professional and friendly customer service
At AirGreen, we don’t just install heat pumps—we provide solutions that enhance the comfort, energy efficiency, and air quality of your home. The Sharp ZU1 installation in Laval is just one example of how we’re bringing the latest HVAC technologies to homes across the region.
Conclusion: A Winning Installation in Laval
The installation of the Sharp ZU1 wall-mounted heat pump in Laval demonstrates our commitment to delivering the best HVAC solutions for our clients. With its energy-efficient R-32 refrigerant, advanced Plasmacluster Technology, and Coanda Airflow Control, the Sharp ZU1 is a standout choice for homeowners looking to enhance their home’s comfort, reduce energy costs, and improve indoor air quality.
For those seeking a reliable and efficient HVAC system in Laval, Montreal, Longueuil, or the North and South Shores, the Sharp ZU1 offers unparalleled benefits. Contact AirGreen today to learn more about how we can help you upgrade your home’s heating and cooling system with the best technology available.
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).