Project

Installation of a Sharp BU Triple Zone Heat Pump in Saint-Constant, South Shore

Learn about our latest Sharp BU Triple Zone Heat Pump installation in Saint-Constant, offering efficient cooling and heating, cleaner air, and significant energy savings through government grants.

By AirGreen Climatisation & Chauffage Admin6 min read
Installation of a Sharp BU Triple Zone Heat Pump in Saint-Constant, South Shore
Installation of a Sharp BU Triple Zone Heat Pump in Saint-Constant, South Shore
–chapters in this story
6 minreading time
–type of installation
2024year published
The tour

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.

Generic diagram: wall-mounted heat pump, indoor and outdoor units

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.

  1. 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.

  2. The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.

  3. Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.

  4. A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.

  5. The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.

  6. On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.

  7. The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.

The job

Providing Comfort and Energy Efficiency with a Sharp Heat Pump in Saint-Constant

At AirGreen, we take pride in providing tailored HVAC solutions for our clients across Montréal, Laval, Longueuil, and the North and South Shore regions. Our latest installation in Saint-Constant, on the South Shore, is an excellent example of our commitment to delivering energy-efficient and high-performance systems to ensure year-round comfort for homes. This recent project features the installation of a Sharp BU Triple Zone Heat Pump, designed to optimize both heating and cooling for the property.

Why Choose the Sharp BU Triple Zone Heat Pump?

The Sharp BU Triple Zone Heat Pump is the ideal choice for homeowners looking for a system that can efficiently handle multiple zones in a home. With its robust 24,000 BTU compressor, this unit provides powerful cooling and heating while simultaneously servicing three different areas of the home, thanks to its two 9,000 BTU indoor units and one 12,000 BTU unit. The combination of energy efficiency and flexible zone control makes it a smart choice for any homeowner looking to optimize comfort while minimizing energy costs.

Key Features:

  • Cooling Capacity: 24,000 BTU, perfect for hot summer days.
  • Heating Capacity: -27°C, ensuring warmth even during harsh Canadian winters.
  • Zones: 3 zones with customizable indoor units.
  • Energy Star® Certified: Leading energy efficiency with a 24.0 SEER rating.
  • WiFi Control: Easy control from your smartphone or tablet, enabling optimal settings anytime, anywhere.

Installation of a Sharp BU Triple Zone Heat Pump in Saint-Constant, South Shore

Installation Details: Setting the Standard for Quality and Precision

Our installation team arrived in Saint-Constant equipped with everything necessary to ensure a seamless and efficient process. The home required a system capable of managing three distinct areas with precision temperature control. The Sharp BU Triple Zone Heat Pump was the perfect fit due to its zone-based control system.

We strategically placed the exterior compressor in a discreet area of the backyard, ensuring that its operation, though quiet at 50 dB(A), wouldn’t disturb the homeowners or neighbors. The indoor units were carefully installed in key areas of the home:

  1. Unit 1 (9,000 BTU): Installed in the main living room to provide consistent cooling and heating where the family spends most of their time.
  2. Unit 2 (9,000 BTU): Placed in the master bedroom to ensure the perfect temperature for restful sleep.
  3. Unit 3 (12,000 BTU): Installed in the family room where additional capacity was needed for larger gatherings and activities.

A Heat Pump Designed for Canadian Winters

One of the most remarkable aspects of the Sharp BU model is its ability to operate efficiently even in the most extreme weather conditions. Winter temperatures in Quebec can drop significantly, making heating a priority for homeowners. The Sharp BU system’s heating capacity of -27°C ensures that even on the coldest days, this system performs optimally.

The patented “HOT GAS PIPE” system is another standout feature. This innovative technology allows the unit to prevent ice formation on the outdoor compressor during defrosting, ensuring continuous operation and reducing energy waste. This makes it not only ideal for the fluctuating Quebec climate but also a reliable long-term investment for homeowners seeking both comfort and energy efficiency.

R-32 Refrigerant: A Green Choice

In addition to its energy-saving capabilities, the Sharp BU Triple Zone Heat Pump utilizes R-32 refrigerant, which has a significantly lower global warming potential (GWP) than older refrigerants like R-22 or R-410A. This environmentally friendly refrigerant contributes to sustainable heating and cooling solutions while offering superior energy efficiency. Homeowners can rest easy knowing that their carbon footprint is minimized with this installation.

Grants and Rebates: Making Efficiency Affordable

A key advantage for homeowners investing in a Sharp BU Triple Zone Heat Pump is the variety of government grants and rebates available. For this installation in Saint-Constant, the homeowners qualified for multiple grants:

  • LogisVert Grant by Hydro-Québec: $3,000
  • Federal Grants: Up to $5,000
  • Provincial Grants: Additional $3,000

With these financial incentives, upgrading to a high-efficiency system like the Sharp BU is more affordable than ever. These programs are designed to encourage homeowners to adopt eco-friendly solutions, making this a win-win for both the environment and household budgets.

Plasmacluster: Innovation for Clean Air

Another impressive feature of this model is the Plasmacluster technology, which purifies the air by generating positive and negative ions to neutralize bacteria, viruses, molds, and allergens. For homeowners concerned about indoor air quality, this advanced technology provides continuous air purification. The family in Saint-Constant can now enjoy cleaner, fresher air, significantly reducing common allergens and improving overall health.

The Coanda Effect: Superior Air Distribution

This installation also benefits from Sharp’s unique Coanda Effect, ensuring that air is distributed evenly throughout each zone without directly blowing on occupants. This advanced air circulation technique eliminates the common discomfort of traditional systems, making the indoor environment more pleasant and energy-efficient. By guiding the airflow along ceilings and walls, this system ensures consistent temperature control throughout the home.

WiFi-Enabled Control: Convenience at Your Fingertips

With the built-in WiFi capabilities, the homeowners can easily control their Sharp heat pump from their smartphone or tablet. Whether they’re adjusting the temperature from the couch or programming settings while away from home, this feature offers unparalleled convenience. Additionally, the WiFi system integrates seamlessly with smart home technology, making the Sharp BU heat pump a perfect addition for modern, connected homes.

A Perfect Fit for the Saint-Constant Home

Overall, this installation of the Sharp BU Triple Zone Heat Pump in Saint-Constant exemplifies our commitment to delivering high-quality and energy-efficient solutions tailored to the specific needs of our clients. The homeowners now benefit from superior climate control, reduced energy costs, and an eco-friendly system that will serve them well for years to come.

Our clients were particularly pleased with the seamless operation of the system, its quiet performance, and the noticeable improvement in indoor air quality thanks to the Plasmacluster technology. We are confident that this installation will continue to provide them with year-round comfort, no matter the weather outside.

The unit

The unit on this job, in figures

The range as published on airgreen.ca: pick a size to see its capacity in deep cold.

The range, size by size
SizeHeating at −8 °CHeating at −15 °CColdest certified pointCOP at −15 °CSEERHSPFIndicative LogisVert aid
Sharp BU 24 0002 Zones (Dual Zone)25,00021,200−27 °C: 14,6002.324.011.5$3,000
Sharp BU 24 0003 Zones (Triple Zone)25,00021,200−27 °C: 14,6002.324.011.5$3,000
Most EfficientENERGY STAR

Among the year’s most efficient according to ENERGY STAR, on top of its cold-climate certification.

8,800BTU/h at low speed

Minimum certified capacity (NEEP): it slows down instead of stopping when a single room calls.

−27 °CColdest certified point

NEEP still lists 14,600 BTU/h at a COP of 1.84 at −17 °F.

675R-32 GWP

Global warming potential of R-32, versus 2,088 for R-410A (ENERGY STAR).

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 steps

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.

Step 1 of 9The on-site estimate

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.

  1. 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.
  2. The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
  3. Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
  4. The wall openingA single opening, with the slope the drain needs to flow outside.
  5. The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
  6. Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
  7. The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
  8. Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
  9. The walkthroughRemote, modes, filters: we show you the essentials before we leave.
Your numbers

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.

Before / afterThe cost of the same heat

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):

Before · baseboards11.142¢/kWh
After · heat pump–

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.

Size checkYour baseboards, in BTU/h
–BTU/h of installed electric heat

    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.

    Mistakes avoided

    Four mistakes we do not make

    Flip each card to see what we do instead.

    Going further

    Your own project, step by step

    Through the seasons

    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.
    At your place

    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.

    0 / 6 checked
    True or false

    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.

    2. You pick the capacity with a simple square-footage rule.

    3. A multi-zone connects several indoor heads to a single condenser.

    4. The disconnect can sit behind the patio furniture.

    Frequently asked questions

    What people ask us about this kind of work

    12 questions
    Does a wall-mounted heat pump heat in winter?
    Yes, it heats and cools. Its capacity drops in very cold weather; the operating range depends on the model and is listed on its spec sheet.
    Wall-mounted or multi-zone: how do I choose?
    One wall head and one condenser outside: the direct solution for a room or an open area. For two to five rooms, a multi-zone puts one head in each room on a single condenser.
    Where does the outdoor unit go?
    Where it stays above the snow, clear and accessible, away from walkways. We decide it with you during the estimate.
    Are there grants?
    Depending on the model and your situation, assistance programs may apply, including Hydro-Québec's LogisVert. AirGreen checks the model number before quoting an amount. See the grants.
    Do I need a permit?
    Rules vary from city to city: location, distances, noise. See permits and by-laws, and we check for your address.
    How cold can it heat?
    It depends on the model. According to Hydro-Québec, newer models work down to a temperature between −15 °C and −25 °C, and some cold-climate models are certified lower. The minimum temperature is on each unit's spec sheet.
    How much can I save?
    Hydro-Québec says a heat pump can be up to three times more efficient than baseboards for heating in the colder months. The result depends on the house, the climate and how it is used.
    How is the LogisVert assistance calculated?
    For ENERGY STAR cold-climate certified heat pumps, Hydro-Québec lists assistance of $120 per 1,000 BTU/h of heating capacity at −8 °C. AirGreen checks the exact model before quoting an amount; only Hydro-Québec confirms the assistance granted. See the grants.
    Is it noisy?
    The sound level depends on the model and is listed in decibels on each unit's spec sheet. Location matters too: when possible, we avoid putting the outdoor unit under a bedroom window.
    The outdoor unit is covered in ice: is that normal?
    Some frost is: the unit runs defrost cycles. Never hit the ice. If the unit stays iced up or stops heating, call us.
    Does AirGreen hold the required licences?
    Yes. AirGreen holds RBQ licence 5645-9605-01, subclasses 15.8 Ventilation, 15.10 Refrigeration and 16 Electricity.
    Is the estimate free?
    Yes. The on-site estimate is free and the quote follows within 24 hours. Book my free estimate.

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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).

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