Installation of a Fujitsu LZAH1 Mini Split Heat Pump in Montreal
Discover how AirGreen transformed a Montreal home with the sleek, efficient Fujitsu LZAH1 heat pump. Year-round comfort, quiet performance, and energy savings await!
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.
Transforming Comfort: A Unique Story Behind This Installation
When it comes to achieving year-round comfort in Montreal, AirGreen stands out as a trusted HVAC partner. This time, we had the pleasure of installing the Fujitsu LZAH1 12,000 BTU Mini Split Heat Pump, a cutting-edge system designed to withstand Montreal’s harsh winters and sweltering summers. This isn’t just an ordinary HVAC installation; it’s a testament to the power of innovation, precision, and tailored solutions for modern homes.
Why Choose the Fujitsu LZAH1?
The Fujitsu LZAH1 is renowned for its efficiency, durability, and ultra-quiet operation. Designed to perform flawlessly even in temperatures as low as -26°C, this model ensures optimal comfort no matter the weather. Its impressive 29.4 SEER rating is a dream come true for environmentally conscious homeowners who want to save on energy bills without compromising comfort.
Let’s dive into some key highlights that make the Fujitsu LZAH1 a top choice for Montreal homeowners:
- Heating and Cooling Efficiency: With a 12,000 BTU capacity, the LZAH1 delivers seamless cooling in summer and robust heating in winter.
- LogisVert Grant Eligible: Thanks to its eco-friendly design, homeowners installing this model can receive up to $1,200 from Hydro-Québec's LogisVert program.
- Quiet Operation: Indoor sound levels range from an almost imperceptible 23 dB to a modest 43 dB, ensuring your home remains a tranquil sanctuary.
- Smart Control Options: Optional WiFi connectivity allows for easy adjustments, even when you're away from home.
The Story Behind This Montreal Installation
When the homeowner reached out to us, they had one key requirement: a reliable heat pump that wouldn’t disturb the serene environment of their family home in central Montreal. They also wanted a system that was both energy-efficient and aesthetically pleasing. After an in-depth consultation, we recommended the Fujitsu LZAH1 for its perfect balance of power, design, and quiet performance.
Our team faced a unique challenge during this installation: Montreal’s unpredictable weather. As clouds rolled in and the rain threatened to delay our progress, we quickly adjusted our schedule to ensure the job was completed on time. Every detail of the process—from securing the unit’s elevated rooftop position to precise Freon calibration—was handled with utmost care.
Highlights of the Installation Process
1. Preparing the Site
- We began by carefully evaluating the home’s layout to determine the optimal placement for the indoor and outdoor units.
- Considering the unpredictable Montreal weather, we mounted the outdoor unit on an elevated metal stand to protect it from snow accumulation during winter.
2. Installing the Outdoor Unit
- The outdoor condenser unit, model AOUG12LZAH1, was secured on the rooftop with precision. Its sleek, compact design blended effortlessly with the surroundings.
- We utilized premium R-410A refrigerant, ensuring optimal system performance while adhering to environmental regulations.
3. Connecting the Indoor Unit
- The indoor unit, model ASUG12LZBS, was installed seamlessly in the family’s main living area. Its modern, understated design complemented the home’s interior.
- The 1/4” – 3/8” refrigerant pipes were expertly concealed, maintaining the clean aesthetics of the space.
4. Ensuring Maximum Efficiency
- Our technicians conducted a full pressure test and vacuumed the refrigerant lines to ensure no leaks. This step is crucial for maintaining the LZAH1’s high-efficiency performance.
- We calibrated the system’s airflow settings, ensuring even distribution of warm and cool air throughout the home.
Why AirGreen Stands Out
As Montreal’s trusted HVAC experts, we bring more than just technical expertise to every project—we bring a commitment to excellence. Here’s why customers choose us:
- Comprehensive Support: From helping you access rebates like the LogisVert grant to providing post-installation care, we’re with you every step of the way.
- Tailored Solutions: Every installation is customized to suit your home’s unique needs.
- Experienced Technicians: Our certified team has decades of experience installing mini splits, including the Fujitsu LZAH1.
- Warranty Coverage: The LZAH1 includes a 10-10-10 warranty: 10 years on the compressor, 10 years on parts, and 10 years on labor for complete peace of mind.
Key Benefits for the Homeowner
With their new Fujitsu LZAH1 heat pump, the homeowner now enjoys:
- Year-round comfort with consistent indoor temperatures.
- Reduced energy bills, thanks to the unit’s high SEER rating.
- A quieter home environment, even during peak operation.
- Eco-friendly heating and cooling, aligned with Hydro-Québec’s energy-saving initiatives.
Technical Specifications at a Glance
| Feature | Details |
|---|---|
| Model (Interior) | ASUG12LZBS |
| Model (Exterior) | AOUG12LZAH1 |
| Cooling Capacity | 12,000 BTU |
| Heating Capacity | Operates down to -26°C |
| Energy Efficiency | 29.4 SEER |
| Noise Level (Indoor) | 23-43 dB(A) |
| Noise Level (Outdoor) | 47 dB(A) |
| Warranty | 10 years (parts, labor, compressor) |
| Refrigerant | R-410A |
Ready to Upgrade Your Home’s Comfort?
At AirGreen, we’re passionate about helping you create a comfortable, energy-efficient home. Whether you’re in Montreal, Laval, Longueuil, or beyond, our team is here to guide you every step of the way.
Contact us today to learn more about the Fujitsu LZAH1 or to schedule your own installation. With AirGreen, comfort is just a call away.
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).