Installation of a FUJITSU Aquila XLTH R32 24,000 BTU dual-zone heat pump in Sainte-Catherine
HVAC Installation in Sainte-Catherine: FUJITSU Aquila XLTH 24,000 BTU dual-zone heat pump. Efficient, quiet, and subsidy-eligible solution, ideal for Montreal and the South Shore.
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.
Strategic HVAC Installation to Maximize Comfort in a Sainte-Catherine Residence
At AirGreen, we recently completed a full HVAC installation in a home located in Sainte-Catherine, on the South Shore of Montreal, showcasing our expertise in high-performance multi-zone systems. The project involved installing a 24,000 BTU FUJITSU Aquila XLTH R32 dual-zone heat pump, a solution perfectly suited for Quebec's harsh winters and increasingly hot summers.
From the first visit, our objective was clear: to provide optimal thermal comfort in two distinct zones of the house, while respecting the architectural constraints of the building and the client's expectations regarding aesthetics and energy performance.
A Dual-Zone Solution Perfectly Adapted to the Client's Needs
Needs Analysis and System Configuration
The residence had two main zones requiring independent temperature control: the living room on the ground floor and the master bedroom upstairs. After a precise thermal assessment, we recommended a 9,000 + 12,000 BTU configuration, ensuring an optimal balance between power and efficiency.
The FUJITSU Aquila XLTH R32 heat pump emerged as the ideal choice due to:
- Its efficient heating capacity down to -26°C
- Its exceptional energy efficiency (SEER2 23.5 | HSPF2 11.5)
- Its ENERGY STAR® Cold Climate certification
- Its quiet operation (indoor unit up to 19 dB)
Why This Model is a Strategic Choice in Quebec
In the climatic context of Montreal, Laval, Longueuil, North Shore, and South Shore, it is essential to choose a heat pump capable of maintaining its performance even in extreme conditions. The Aquila XLTH model is specifically designed for this, featuring:
- A high-efficiency INVERTER compressor
- A more ecological R-32 refrigerant
- An advanced defrost system with an integrated pan heater
Technical Details of the Outdoor Installation
Positioning and Wall Mount
Observing the project photo, it's clear that the outdoor unit was installed on a galvanized steel wall mount, securely fastened to the concrete foundation. This choice is never accidental.
We favor this type of installation for several reasons:
- To prevent snow and ice accumulation in winter
- To reduce vibrations transmitted to the ground
- To facilitate future HVAC maintenance
The unit is positioned at an optimal height, adhering to our standard recommendation of 10 to 12 inches minimum above ground level, which significantly extends the system's lifespan.
Conduit Management and Aesthetic Finish
A white pipe cover was installed horizontally along the wall to protect the refrigerant lines and ensure a clean finish. This detail is essential for:
- Protecting the lines from the elements
- Maintaining a uniform aesthetic with the facade
- Facilitating access for maintenance
We also took care to avoid any interference with existing elements, such as the adjacent fence and shrubs, by precisely adjusting the unit's location.
Challenges Encountered on This Project in Sainte-Catherine
Space Constraints and Limited Access
The back wall of the house offered restricted space between the foundation, the fence, and existing vegetation. This necessitated:
- Precise positioning planning
- The use of a compact yet robust wall mount
- Rapid installation to minimize impact on the site
Vibration and Noise Management
Even though the FUJITSU model is known for its quiet operation (52 dB outdoors), we added anti-vibration supports to eliminate any sound transmission to the building's structure.
Adaptation to Electrical Standards
The unit operates on a 220V circuit with an MCA of 24A and an MOP of 25A. We upgraded the electrical panel to ensure power supply compliance with RBQ standards.
Final Result: Performance, Discretion, and Efficiency
Once the installation was complete, the system was commissioned with a full test:
- Verification of refrigerant pressures
- Calibration of indoor units
- Heating test under simulated conditions
The result is a perfectly balanced system offering:
- Uniform comfort in both zones
- Significant reduction in energy costs
- Intuitive use thanks to independent remote controls
LogisVert Subsidy: A Major Financial Advantage
This installation is eligible for the $1,944 LogisVert subsidy, which significantly reduces the total cost for the client. At AirGreen, we assist every client with:
- Document preparation
- Eligibility validation
- Application follow-up
Practical Tips for a Successful Dual-Zone Installation
Mistakes to Absolutely Avoid
- Choosing inadequate power for the zones
- Neglecting the outdoor unit's location
- Installing without a detailed thermal analysis
- Ignoring conduit length constraints
Recommended Best Practices
- Always favor wall mount installation in Quebec's climate
- Maintain easy access for HVAC maintenance
- Use certified components to ensure durability
- Call on RBQ certified professionals
Why AirGreen is the Logical Choice for Your HVAC Installation
Our clients in Sainte-Catherine, Montreal, Laval, and Longueuil choose AirGreen for concrete reasons:
- Recognized expertise in multi-zone heat pumps
- Fast and clean installation
- Total price transparency
- Local and responsive after-sales service
Each project is handled with rigor, precision, and particular attention to the technical details that make all the difference.
An Installation That Reflects Our Expertise
This project in Sainte-Catherine perfectly illustrates our approach: a combination of strategic planning, impeccable technical execution, and attention to detail.
The FUJITSU Aquila XLTH R32 heat pump installed here offers the client a durable, high-performance solution perfectly adapted to Quebec's climate.
At AirGreen, we don't just do installations — we design comfort systems optimized for every home.
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.
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.
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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).