Installation of a Sharp ZU1 Mini Split Heat Pump in Montreal
Installed a Sharp ZU1 Mini Split in Montreal, combining eco-friendly R-32 refrigerant, heating at -27°C, and Plasmacluster air purification. Enjoy year-round comfort and energy savings!
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.
A Smart Solution for Montreal’s Climate: Sharp ZU1 Mini Split Installation
When it comes to creating comfortable living spaces, AirGreen is proud to provide top-notch solutions across Greater Montreal. This time, we had the pleasure of installing a Sharp ZU1 15,000 BTU Mini Split Heat Pump in a residential home in Montreal. Our client was looking for a system that would offer year-round comfort, energy efficiency, and qualify for local grants like the LogisVert Grant by Hydro-Québec.
As the seasons in Montreal can be unpredictable, a heat pump like the Sharp ZU1 offers the perfect balance of powerful cooling in the summer and efficient heating during those long, harsh winters. Not only does the system boast a cooling capacity of 15,000 BTU, but it’s also designed to provide heat even at outdoor temperatures as low as -27°C.
The Story Behind This Installation
Our client reached out to us after experiencing discomfort with their old HVAC system. The inconsistent temperatures throughout their home, especially in winter, were a persistent issue. They wanted a reliable and modern solution that wouldn’t just handle the heat waves, but also stand up to Montreal’s notorious winters. After reviewing their needs, we recommended the Sharp ZU1 Mini Split Heat Pump as the ideal option.
This installation took place on a sunny morning in Montreal, with the team ready to tackle the task. Our certified technicians arrived promptly, ready to install a system that would ensure year-round comfort. The choice to go with the Sharp ZU1 was an easy one. This model is known for its quiet operation, WiFi connectivity, and ability to withstand the extremes of Quebec weather.
Why the Sharp ZU1? Top Features and Benefits
The Sharp ZU1 series has been designed with both performance and sustainability in mind. It uses the R-32 refrigerant, which is not only more environmentally friendly but also significantly more efficient than its predecessors like R-22. Here’s what makes this unit stand out:
- Cooling Capacity: 15,000 BTU, perfect for moderate to large spaces.
- Heating Capacity: Works efficiently even at -27°C, making it an ideal choice for the coldest Montreal winters.
- Plasmacluster Technology: This advanced feature purifies the air by neutralizing airborne viruses, mold, and other allergens, ensuring clean and healthy indoor air.
- Coanda Airflow Control: Directs airflow in a way that avoids cold drafts, improving overall comfort.
- WiFi Connectivity: Remote control and real-time monitoring through your smartphone make managing the system a breeze, even when you're not home.
- Quiet Operation: With a sound pressure level of only 49.0 dB(A) outdoors and 23 to 46 dB(A) indoors, it’s perfect for quiet environments.
Installation Details and Process
For this project, we installed both the indoor and outdoor units with precision, ensuring the system’s optimal performance. The interior unit was mounted in the main living area, a space that needed consistent heating and cooling. Measuring 41.42 x 9.80 x 12.44 inches, the compact indoor unit blends seamlessly into the room’s aesthetics without taking up too much space. The exterior unit is equally efficient in its design, with dimensions of 30.72 x 10.59 x 21.25 inches, allowing for easy placement even in limited outdoor spaces.
Piping and electrical connections were installed according to the highest standards to ensure efficient refrigerant flow and reliable operation. The Sharp ZU1’s 220V power supply and 1/4 - 3/8 inch piping make it both powerful and energy-efficient.
Grant Eligibility: Saving with LogisVert
One of the major benefits for our Montreal client was the system’s eligibility for the $2,172 LogisVert Grant from Hydro-Québec. This substantial grant reduces the upfront cost of the system, making it more affordable for homeowners who are looking to upgrade to energy-efficient solutions.
Additionally, the unit is Energy Star® certified, ensuring that it meets stringent energy efficiency standards. With a 24.0 SEER rating, this model is perfect for anyone looking to reduce their environmental footprint and lower their energy bills.
What Makes the Sharp ZU1 a Great Choice for Montreal?
Montreal’s climate is known for its extremes, from scorching summers to frigid winters. That’s why the Sharp ZU1 heat pump is a great fit for this environment. Not only does it handle cooling with ease, but its ability to provide heating at -27°C makes it a robust solution for even the coldest days.
We also can't overlook the Plasmacluster air purification technology, which goes beyond temperature control. This innovative feature makes sure the air inside your home is clean, free of airborne bacteria, mold, and viruses. With this in place, our client now enjoys fresh, purified air all year round.
Technical Specifications and Performance
Here’s a quick look at the Sharp ZU1 specs that set it apart:
- Cooling Capacity: 15,000 BTU
- Heating Capacity: Works down to -27°C
- Refrigerant: Uses the eco-friendly R-32 Freon
- Sound Levels: 49 dB(A) outdoor, 23-46 dB(A) indoor
- Efficiency: 24.0 SEER, Energy Star® certified
- Warranty: 10 years on compressor, parts, and labor
- WiFi Included: Yes
The 10-year warranty is another compelling reason to choose this unit. It provides peace of mind for homeowners, knowing that their investment is covered long-term.
Final Thoughts
This Sharp ZU1 Mini Split installation in Montreal was an exciting project for us at AirGreen. Not only did we deliver a product that will provide our client with comfort throughout the year, but we also ensured they received the benefits of government grants and energy savings. We take pride in offering top-of-the-line HVAC solutions that combine innovation, reliability, and energy efficiency.
If you’re looking for a reliable heat pump installation in Montreal, Laval, Longueuil, or the surrounding areas, AirGreen is here to help. Whether you need to beat the summer heat or stay cozy during the winter months, our expert team is ready to assist you in finding the perfect system for your home.
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).