Installation of a Fujitsu LZAH1 Wall-Mounted Heat Pump in LaSalle, Montreal
A balcony, a challenge, and a top-tier HVAC system. Dive into our latest installation story in LaSalle, Montreal, and discover the AirGreen difference!
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 Balcony Installation That Exceeded Expectations
When it comes to HVAC installations, every project has its unique set of challenges and requirements. Our recent installation in LaSalle, Montreal, was no exception. But as always, we at AirGreen rose to the occasion, delivering an impeccable installation that left our customer ecstatic.
The Challenge: Limited Space, High Expectations
Our customer in LaSalle had a specific request: he needed a top-of-the-line HVAC system, but there was a catch. The only available space for the compressor unit was his balcony. This posed a unique challenge, but we were more than up for it.
Why Fujitsu LZAH1 Was the Perfect Choice
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Silent Operation: Our client emphasized the need for a silent machine. The Fujitsu LZAH1 boasts a sound pressure level of just 23 / 43 dB(A) indoors and 47.0 dB(A) outdoors, making it one of the quietest machines on the market.
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Efficiency: With an impressive 29.4 SEER, this machine is not only efficient but also environmentally friendly.
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Warranty: The 10-10-10 warranty (Compressor - Parts - Labor) is a testament to the machine's durability and our confidence in its longevity. Plus, the extended warranty is included!
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Grants: The Fujitsu LZAH1 is eligible for both Federal and Provincial grants, allowing our customer to benefit from significant savings.
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Additional Features: From its cooling capacity of 12,000 BTU to its optional WiFi capabilities, this machine is packed with features that make it a standout choice.
The Installation Process: Precision and Professionalism
Our team approached this installation with meticulous attention to detail. Given the unique placement on the balcony, we ensured that the machine was not only functional but also aesthetically pleasing. The result? A beautiful installation that seamlessly blended with the surroundings.
Customer Satisfaction: Beyond the Machine
While the Fujitsu LZAH1 is undoubtedly a top-tier machine, what truly made this installation special was our customer's reaction. He was over the moon with our professional approach, our attention to detail, and the overall outcome. His words? "I could not imagine that you would have done such a good job!"
Key Specifications of the Fujitsu LZAH1
- Cooling/Heating Capacity: 12,000 BTU / -26 °C
- Serial Numbers: Interior - ASUG12LZBS, Exterior - AOUG12LZAH1
- Dimensions: Interior - 38.44x9.44x11.06, Exterior - 31.44x11.44x24.88
- Energy Star® Certification: Yes
- Gas (Freon): R-410A
- Voltage: 220 V
Why Choose AirGreen for Your HVAC Needs?
Our installation in LaSalle is just one example of our commitment to excellence. Whether it's a simple installation or a complex challenge, we bring the same level of dedication and professionalism to every project. Our goal? To leave every customer as thrilled as our friend in LaSalle.
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).