Installation of a FUJITSU ORION XLTH+ 12,000 BTU Mini Split Heat Pump in Sainte-Catherine
FUJITSU ORION XLTH+ 12,000 BTU Installation in Sainte-Catherine: A high-performance mini-split heat pump, adapted to the Quebec climate, with an impeccable finish and a LogisVert subsidy.
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.
Custom HVAC Installation in an Urban Brick Environment: Efficiency, Discretion, and Durability
At AirGreen, every HVAC installation represents an opportunity to demonstrate our technical rigor and understanding of the specific realities of homes on the South Shore, particularly in Sainte-Catherine. This project involving the installation of a FUJITSU ORION XLTH+ 12,000 BTU mini split heat pump perfectly illustrates how a well-thought-out solution can transform indoor comfort while respecting the architectural constraints of an existing building.
Optimized Outdoor Configuration for Durability
Elevated Stand Installation: A Strategic Choice
In this project, the outdoor unit was installed on an elevated aluminum stand, solidly anchored to the ground. This choice is never trivial:
- Protection against snow accumulation in winter (crucial for Quebec's climate)
- Reduction of vibrations transmitted to the structure
- Improved air circulation around the unit
- Easier access for HVAC maintenance
Unlike a wall-mounted installation, often used in Montreal or Laval, the ground stand is better suited here to the building's configuration and the presence of a brick wall with a concrete ledge.
Clean and Efficient Management of Refrigerant Lines
The refrigerant lines were carefully routed through the exterior wall, protected by a white insulating sleeve, then covered with an aesthetic red cover matching the facade.
This detail, often overlooked by other contractors, makes all the difference:
- Protection against bad weather
- Preservation of thermal insulation
- Harmonious visual finish with the building
At AirGreen, we always insist on this type of finish, because an HVAC installation must not only be efficient — it must also be clean and visually durable.
Specific Challenges Encountered in Sainte-Catherine
Brick Wall and Concrete Window Sill
The main challenge of this installation came from the exterior wall structure:
- Solid brick wall
- Thick concrete window sill
- Restricted space for conduit passage
To overcome this constraint, we have:
- Performed precise drilling with an adapted slope for drainage
- Used specialized tools to prevent cracks in the brick
- Strategically positioned the passage under the concrete sill
This type of intervention requires great precision, as an error can compromise the waterproofing or integrity of the wall.
Optimal Positioning of the Outdoor Unit
Given the limited space between the wall and the circulation area, we optimized the location of the outdoor unit to:
- Respect the minimum distances specified by the FUJITSU manufacturer
- Ensure proper ventilation
- Avoid any future obstruction
This type of consideration is essential to guarantee the long-term performance of the mini split heat pump.
The FUJITSU ORION XLTH+ Heat Pump: A Strategic Choice for Quebec's Climate
Exceptional Heating Performance Down to -30°C
The FUJITSU ORION XLTH+ 12,000 BTU is specifically designed for Quebec's harsh winters. It offers:
- Guaranteed heating down to -30°C
- Inverter technology for precise modulation
- High energy efficiency (SEER2 28.7, HSPF2 13.0)
For residents of Sainte-Catherine, this means constant comfort even during periods of extreme cold, without relying solely on electric heating.
Silence and Indoor Comfort
With an indoor sound level as low as 26 dB, this unit ensures:
- A quiet environment
- Optimal comfort in living spaces
- Appreciated discretion in bedrooms or home offices
Connectivity and Smart Control
The model includes integrated Wi-Fi, allowing for:
- Remote control via smartphone
- Smart programming
- Optimization of energy consumption
Subsidies and Savings: A Concrete Advantage
This installation is eligible for Hydro-Québec's LogisVert program, offering a subsidy of approximately $1,296 for this type of system.
This allows for:
- Significant reduction of the initial cost
- Improved return on investment
- Encouraging the adoption of energy-efficient solutions
At AirGreen, we always assist our clients in the steps to obtain these financial aids.
Key Steps of AirGreen Installation
Preparation and Analysis
Before any installation:
- Complete site inspection
- Validation of technical constraints
- Choice of optimal location
Technical Installation
- Precise wall drilling
- Installation of the outdoor unit on a stand
- Connection of refrigerant lines
- Secure electrical connection
Quality Procedures
We systematically perform:
- Pressure test to detect any leaks
- Vacuum pull (micron test) to ensure absence of moisture
- Complete functional verification
These steps are essential to ensure the longevity of the system.
Common Mistakes to Avoid During HVAC Installation
Many poorly executed installations in the Longueuil or North Shore region exhibit preventable problems:
- Incorrect conduit slope → water accumulation
- Absence of vacuum pull → system contamination
- Unstable support → vibrations and noise
At AirGreen, we have often been called to correct these types of errors. A well-done installation from the start avoids significant long-term costs.
Why Choose AirGreen for Your Installation in Sainte-Catherine
Recognized Local Expertise
We regularly operate in Montreal, Laval, Longueuil, as well as throughout the South Shore and North Shore, with in-depth knowledge of building types and local constraints.
Transparent Approach
- Payment only once the client is satisfied
- Clear explanations at each step
- No surprises
Reliable After-Sales Service
- Prompt support when needed
- HVAC maintenance options
- Full warranty on installations
Final Result: A Clean, Efficient, and Durable Installation
The result of this installation in Sainte-Catherine is a perfectly integrated system:
- Refined aesthetics
- Optimal performance
- Immediate comfort for the client
This achievement reflects our commitment to providing superior quality HVAC installations, adapted to the real needs of Quebec residents.
How it goes, from the first call to the end
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.
And 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.
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.
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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?
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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).