A seamless and efficient wall-mounted heat pump installation in a tight space
At AirGreen, we specialize in installing HVAC systems (heating, ventilation, and air conditioning) that are not only efficient and high-performing, but also visually discreet and tailored to each home’s architectural reality. Today, we’re showcasing a project completed in the Ville-Marie neighbourhood of Montréal, featuring a SHARP BU DoubleZone wall-mounted heat pump, a high-performance model certified for harsh Canadian climates.
The goal of this installation was to deliver a multi-room heating and cooling solution, while maintaining exceptional energy efficiency and visual discretion. Thanks to our team’s expertise and the strategic selection of the SHARP BU series, we were able to provide our client with tailor-made thermal comfort, all year round.
Why the SHARP BU DoubleZone Wall-Mounted Heat Pump?
The SHARP BU series strikes the perfect balance between cutting-edge Japanese technology, sleek design, and extreme cold weather performance. It’s designed to serve two to three separate zones with a single outdoor unit, making it an ideal choice for condos, duplexes, or urban homes like those found in downtown Montréal.
Some of the key advantages of the BU model:
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Exclusive Plasmacluster technology: actively purifies indoor air by neutralizing viruses, bacteria, allergens, and mold.
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Maximum heating performance down to -27 °C thanks to the patented "Hot Gas Pipe" system.
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R32 refrigerant: an eco-friendly, energy-efficient, and environmentally responsible choice.
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Ultra-low noise level, making it perfect for bedrooms, offices, and other quiet zones.
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Built-in Wi-Fi with Google Assistant and Alexa compatibility for smart comfort management.
Technical details of the installed SHARP BU heat pump
Here are the specs for the BU DoubleZone model installed in this home:
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Indoor units: AY-XPC9BU and AY-XPC12BU
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Outdoor unit: AE-X3M24BU (AHRI certified #213927543)
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Cooling capacity: Up to 24,000 BTU/h
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Heating capacity: Up to 26,000 BTU/h
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SEER: 25 (very high energy efficiency)
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HSPF: 12 (high-performance heating)
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Temperature range: Operates down to -27 °C in heating mode
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Airflow rate: Up to 752 CFM
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Indoor sound level: As low as 23 dB(A)
These specs make the BU model a top-tier choice for anyone seeking a high-performance, multi-zone solution that’s durable and discreet.
Installation process in Ville-Marie
This project was completed in a typical Ville-Marie condo, where wall space is limited, and every inch matters. Here’s a breakdown of the key steps our team followed:
1. Assessment and planning
First, we performed a full assessment of the client’s needs and the building’s layout. Choosing a DoubleZone system allowed us to cover the most important areas — the living room and the master bedroom — without installing multiple outdoor units.
2. Strategic wall-mounted placement
The unit shown in the photo was strategically installed above a patio door, in a discreet yet central location. This setup ensures optimal airflow circulation, while maintaining a clean and elegant look.
3. Precise, high-quality workmanship
The wall unit was securely mounted with an anti-vibration anchor system. The refrigerant lines were carefully routed to the outdoor unit, which was installed on an anti-vibration base in the backyard. All R32 refrigerant piping was insulated and protected according to the strictest standards.
4. Wi-Fi system setup
We guided the client through the Wi-Fi connection process, enabling full remote control via the SHARP mobile app. The system also offers automated alerts and smart programming tailored to the family’s schedule.
5. System testing and client walkthrough
All functions (heating, cooling, air purification, airflow control) were fully tested, and the client received a personalized tutorial to make the most of their new SHARP heat pump’s advanced features.
What this project showcases about AirGreen’s expertise
Every installation is unique. This project highlights our ability to:
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Maximize heat pump efficiency in a constrained urban environment.
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Adapt solutions to architectural constraints and client comfort requirements.
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Integrate high-end technologies like the BU series with Plasmacluster and smart Wi-Fi controls.
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Deliver a full-service experience: diagnosis, installation, configuration, tutorial, and follow-up.
At AirGreen, we believe thermal comfort and air quality go hand-in-hand. With systems like the SHARP BU DoubleZone, we provide clients with efficient, durable, and healthy solutions.
Eligibility for energy rebates
Good news: this installation is eligible for Hydro-Québec’s LogisVert rebate program. The BU series is Energy Star certified and provides optimal cold-weather performance, meeting the energy efficiency requirements for HVAC rebates in Québec.
Our advisors are here to help you navigate the application process and secure financial assistance of up to $2,500, depending on your situation.
Practical tips for owners of wall-mounted heat pumps
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Regular maintenance: Clean filters monthly and have the unit checked by a pro annually.
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Watch for unusual sounds: Vibrations may indicate loose anchors or imbalances.
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Use energy-saving mode to reduce costs while staying comfortable.
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Take advantage of Plasmacluster: Activate air purification regularly for healthier indoor air.
AirGreen: Your HVAC partner for Montréal, Laval, Longueuil, North Shore and South Shore
Whether you're in Ville-Marie, Old Montréal, the Plateau, Laval, Longueuil, the North Shore, or the South Shore, our experts are here to deliver tailored, long-lasting, high-performance solutions.
Every AirGreen installation is completed with care, precision, and an unwavering commitment to quality.
Trust AirGreen for your heating and cooling projects.