Installation of a Sharp ZU1 Mini Split Heat Pump in Ville Saint-Laurent
Discover the comfort of a Sharp ZU1 heat pump installed in Ville Saint-Laurent, offering reliable heating to -27°C and superior air purification with Plasmacluster technology.
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.
Efficient Heating and Cooling with a Cutting-Edge Sharp ZU1 Mini Split
At AirGreen, we take great pride in offering premium HVAC installations throughout the Greater Montreal area, including Laval, Longueuil, and the North and South Shores. Our latest project in Ville Saint-Laurent involved the installation of a Sharp ZU1 24,000 BTU wall-mounted heat pump, a unit that perfectly balances modern technology, energy efficiency, and home comfort. With this installation, the homeowners will not only enjoy year-round temperature control but also benefit from a $2,688 LogisVert Grant by Hydro-Québec, the highest grant available for a 24,000 BTU mini split.
The Installation Process: Combining Expertise and Precision
The Sharp ZU1 mini split was installed in a prime location within the home, ensuring optimal airflow and temperature uniformity throughout the space. Our team took special care to mount the interior unit at the perfect height, allowing for an unobstructed distribution of air using the Coanda airflow control. This innovative feature directs the airflow along the ceiling and walls, avoiding direct drafts on the occupants, which is ideal for a comfortable living environment.
Moreover, the exterior unit was strategically positioned to minimize noise disruption, thanks to its quiet 53.0 dB(A) sound pressure level, making it suitable for a residential area like Ville Saint-Laurent. To ensure long-lasting performance, we applied a specialized anticorrosive coating to protect the unit against the elements, especially important given Quebec’s harsh winters.
Sharp ZU1: A Perfect Fit for Quebec's Climate
The Sharp ZU1 heat pump was specifically chosen for this installation due to its outstanding ability to perform in extreme cold conditions. The system is designed to provide heating down to -27°C, ensuring that the home remains warm even during the coldest days of winter. This is achieved through Sharp's patented Hot Gas Pipe system, which prevents the outdoor compressor from freezing by circulating residual heat throughout the piping.
In addition, the defrosting mode of the ZU1 ensures that ice does not accumulate on the unit, as hot gas circulates to the condensation pan, rapidly melting any frozen water. The multi-hole drainage system then efficiently expels the water, preventing any potential freezing issues.
A Greener, More Sustainable Choice
AirGreen is committed to promoting energy-efficient solutions, and the Sharp ZU1 heat pump fits perfectly with this mission. It uses the latest R-32 refrigerant, which not only enhances the unit’s cooling capacity but also significantly reduces its environmental impact. The R-32 refrigerant has a lower global warming potential compared to older refrigerants like R-22, helping to reduce greenhouse gas emissions.
The 22.0 SEER efficiency rating of the ZU1 also speaks to its exceptional energy-saving capabilities. This high level of efficiency means the homeowners will benefit from reduced electricity costs while maintaining a comfortable indoor environment. The inverter technology built into the unit allows the system to adjust its power usage based on the room's temperature, preventing unnecessary energy consumption and prolonging the lifespan of the heat pump.
Plasmacluster Technology: Superior Air Quality
One of the standout features of the Sharp ZU1 mini split is its Plasmacluster air purification technology. This unique system releases both positive and negative ions into the air, neutralizing harmful particles such as bacteria, viruses, and allergens. For this Ville Saint-Laurent installation, the Plasmacluster feature offers a significant advantage, ensuring that the indoor air remains not only comfortable but also clean and healthy for the occupants.
Benefits of Plasmacluster Technology:
- Eliminates airborne viruses and bacteria.
- Neutralizes mold spores, ensuring a healthier indoor environment.
- Reduces odors from cooking, smoking, and pets.
- Alleviates allergens, making it ideal for homes with asthma or allergy sufferers.
Multi-Space Functionality for Enhanced Comfort
The Sharp ZU1 comes equipped with a Multi Space function, enabling the heat pump to efficiently distribute air throughout multiple rooms. This was particularly beneficial for the homeowners in Ville Saint-Laurent, who wanted to ensure that their entire living area remained evenly heated or cooled. The system’s rotating flap, which can adjust up to 180 degrees, allows for precise control over airflow direction, making it easy to achieve a consistent temperature across different spaces.
In heating mode, the flap directs warm air downward to maintain a cozy atmosphere, while in cooling mode, it pushes cool air upward for maximum coverage. The adjustable angles of the flap give homeowners the flexibility to customize airflow according to their preferences.
Smart Connectivity and Real-Time Monitoring
To add to the convenience, the Sharp ZU1 mini split includes WiFi connectivity, allowing homeowners to control the system through a smartphone app. This smart feature provides real-time updates on temperature and humidity levels, and can even send notifications when someone is detected entering the room or if the space has been vacant for an extended period. The app’s energy monitoring capabilities help users track their heat pump’s power consumption, promoting smarter energy use and reducing unnecessary costs.
The GPS interlocking feature further enhances efficiency by adjusting the system's settings based on the homeowner’s location. For instance, if the user leaves the house with the heat pump still running, the app will issue a reminder to turn it off. When approaching home, the system can automatically adjust to a desired temperature, ensuring comfort upon arrival.
Ensuring a Quiet and Comfortable Experience
While some heat pumps generate disruptive noise, the Sharp ZU1 mini split boasts an impressively low 25 to 49 dB(A) sound level for the indoor unit. This makes it an excellent choice for bedrooms, living rooms, and home offices, where noise levels need to be kept to a minimum. The unit’s sound-dampening design ensures that even when operating at maximum capacity, it remains whisper-quiet.
The AirGreen Advantage: Installation and Beyond
Choosing AirGreen for your HVAC installation means more than just acquiring a heat pump; it means partnering with a team that values quality workmanship, customer satisfaction, and environmental responsibility. Our professional technicians follow a meticulous installation process to ensure the system operates at peak efficiency. Additionally, we provide comprehensive support, from helping homeowners apply for the LogisVert Grant to offering maintenance services that extend the lifespan of the heat pump.
Why Choose Us?
- Expertise in extreme weather installations: With extensive experience installing heat pumps that can handle Quebec’s harsh climate, we know exactly how to position and set up units for optimal performance.
- Commitment to sustainability: By choosing products with R-32 refrigerants and promoting energy-efficient technologies, we help our customers reduce their carbon footprint.
- Excellent warranties: The Sharp ZU1 comes with a 10-10-10 warranty covering the compressor, parts, and labor, offering peace of mind for years to come.
- Customer-centric approach: We prioritize our clients' comfort and satisfaction, providing tailored recommendations and reliable aftercare services.
Conclusion: A Smart Investment for Your Home
The installation of the Sharp ZU1 mini split heat pump in Ville Saint-Laurent is a prime example of how modern HVAC solutions can improve home comfort while promoting sustainability. The combination of advanced air purification, energy-efficient heating and cooling, and smart connectivity makes this unit an outstanding choice for homeowners looking to enhance their living environment.
At AirGreen, we are committed to delivering high-quality HVAC solutions that meet the specific needs of our clients across Montreal, Laval, Longueuil, the North Shore, and the South Shore. Contact us today to learn more about our services and schedule an installation that will transform your home into a haven of comfort.
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).