Installation of a FUJITSU ALTAIR 700 Mini Split Heat Pump in Montreal North
AirGreen installs a FUJITSU ALTAIR 700 Mini Split wall-mounted heat pump in Montreal North with a raised stand, clean connections, and a sustainable HVAC solution for efficient year-round comfort.
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A compact, clean, and well-thought-out installation for a limited outdoor space in Montreal-North
In Montreal-North, many residential properties present a common reality for our teams: the outdoor spaces available to install a wall-mounted heat pump unit are often limited, shared, framed by brick or concrete walls, or located in high-traffic areas where every inch counts. It is precisely in this type of context that the installation of a FUJITSU ALTAIR 700 Mini Split requires careful planning, judicious site selection, and rigorous technical execution.
For this installation, our AirGreen team installed a Fujitsu Airstage outdoor unit, using R32 refrigerant, on an elevated aluminum stand, solidly anchored to the ground. The objective was clear: to provide the client with a reliable, durable, and discreet heating and cooling solution, while respecting the physical constraints of the location. The project photo clearly shows the final result: a well-cleared unit, installed against a concrete block wall, with a neatly organized conduit run to the adjacent brick wall.
This type of HVAC installation in Montreal perfectly illustrates what many homeowners are looking for: an efficient, professional solution, adapted to the building, without compromising on safety, accessibility for future HVAC maintenance, and the aesthetic quality of the work.
A FUJITSU ALTAIR 700 Mini Split adapted to the residential needs of Montreal-North
The FUJITSU ALTAIR 700 is a Mini Split wall-mounted heat pump solution designed for homeowners who want to combine comfort, energy performance, and quiet operation. In an area like Montreal-North, where homes, duplexes, triplexes, and small residential buildings often have rooms with varied configurations, a properly sized wall-mounted heat pump can drastically transform indoor comfort.
This installation primarily aimed to provide:
- stable cooling during Montreal's hot and humid summer periods;
- efficient heating during intermediate seasons and cold periods;
- better temperature management in a targeted area of the residence;
- a more economical solution than a central system when only one zone needs to be treated;
- a secure, accessible, and well-protected outdoor installation.
Fujitsu's ALTAIR 700 series is known for its balanced approach: good efficiency, reliable design, and technology adapted to typical residential needs. For a homeowner comparing different heat pump options, this type of system often represents a very attractive solution when the goal is to obtain fast, precise, and durable comfort, without major interior renovations.
What the image reveals about installation quality
The provided image allows us to observe several important details that clients do not always notice at first glance, but which make all the difference in the durability of an installation.
First, the outdoor unit is installed on an elevated aluminum base. This choice is particularly relevant in the greater Montreal area, where snow, ice, runoff water, and freeze-thaw cycles can affect equipment installed too close to the ground. By elevating the unit, we improve:
- air circulation around the appliance;
- protection against snow accumulation;
- equipment stability;
- access for inspections and maintenance;
- the longevity of the installation.
It is also noted that the conduits and refrigerant lines are routed neatly along the wall. A careful installation is not limited to making the appliance work: it must also remain clean, safe, and easy to inspect. At AirGreen, we pay particular attention to cable routing, conduit fastening, wall penetration sealing, and compliance with clearances around the outdoor unit.
Why the choice of location was important
The chosen location presented several constraints: a concrete block wall at the back, a brick structure on the side, a vertical downspout nearby, a wall-mounted electrical box, and a restricted space between different building elements. In this type of situation, it is essential not to improvise.
Before fixing the unit, our team analyzed several factors:
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Clearance in front of the fan
An outdoor unit must be able to expel air correctly. Poor air circulation can reduce system efficiency, increase noise, and force the compressor to work harder. -
Support strength
The support must withstand vibrations, the weight of the appliance, and the climatic conditions of Montreal, including frost, snow, and heavy rains. -
Maintenance access
A heat pump must be inspectable, cleanable, and maintainable. Poor positioning can make future interventions unnecessarily complex. -
Conduit protection
Refrigerant lines, drain, and power supply must be routed neatly and protected against mechanical damage. -
Visual integration
In a visible outdoor space, especially near an entrance, balcony, or passageway, a clean installation has real value for the homeowner.
This approach results in a durable, functional, and visually acceptable HVAC installation, even when available space is limited.
Key steps of this AirGreen installation in Montreal-North
Site evaluation and space preparation
Before any installation, our team conducts a complete site evaluation. In this specific case, the outdoor space had to be used intelligently. The unit could not be placed directly on the ground without considering water drainage, accumulated snow, and necessary clearances. We therefore prepared a stable base and chose a height allowing the appliance to operate correctly throughout the year.
This step is crucial, as a wrong decision at the outset can cause long-term problems: vibrations, poor water drainage, difficult maintenance, ice accumulation, or premature wear of certain components. A quality wall-mounted heat pump deserves an installation commensurate with its capabilities.
Installation of the elevated support
The support visible in the image is a central element of the project. Unlike a simple slab or ground placement, this support keeps the outdoor unit clear and stable. The feet are well anchored, the structure is straight, and the appliance rests on suitable support points.
In areas like Laval, Longueuil, the North Shore, and the South Shore, we often recommend this type of approach when the terrain, yard, or outdoor space presents risks of snow or water accumulation. In Montreal-North, this solution was particularly appropriate due to the narrow configuration of the site.
Line routing and connections
Installing a FUJITSU ALTAIR 700 Mini Split involves several technical connections: refrigerant lines, condensation drain, communication cable, electrical power supply, and passage protection. These works must be carried out by qualified professionals, as an error in the refrigerant or electrical connection can directly affect system performance and reliability.
In the photo, a clean routing of conduits to the right side of the appliance is visible. The passage was organized to limit clutter, preserve access to the unit, and avoid unnecessary tension on the connections.
At AirGreen, we emphasize an important point: a successful installation is not just an installation that starts up. It is an installation that continues to function well after several seasons, with minimal noise, good efficiency, and simplified maintenance.
Commissioning and technical verifications
Once the physical installation is complete, our technicians proceed with the full commissioning of the system. This step includes checking connections, functional testing, communication control between units, drain validation, and observing the appliance's behavior in both cooling and heating modes.
For the client, this step is reassuring: it confirms that the heat pump is working correctly and that the installation complies with AirGreen's professional standards. We also take the time to explain best practices for use: temperature setting, filter maintenance, seasonal operation, and signs to watch for.
Concrete benefits for the client
After installation, the client benefits from a system capable of providing rapid and targeted comfort. A Mini Split wall-mounted heat pump like the FUJITSU ALTAIR 700 can effectively treat a specific area of the house without relying on a centralized duct network. This is a particularly appreciated solution in properties where adding ducts would be costly, invasive, or simply unnecessary.
The most concrete benefits are:
- better comfort in summer;
- efficient auxiliary heating;
- a more stable temperature in the served room;
- generally quiet operation;
- a compact outdoor installation;
- optimized energy consumption compared to several traditional solutions;
- greater flexibility in daily use.
For homeowners in Montreal, Laval, Longueuil, the North Shore, and the South Shore, this type of solution often represents an excellent compromise between performance, budget, and ease of installation.
The importance of R32 refrigerant
The label visible on the unit indicates the use of R32 refrigerant. This detail is important. R32 is increasingly used in modern air conditioning and heat pump systems due to its technical and environmental characteristics. For the client, this means that the appliance belongs to a newer generation of HVAC systems.
That said, refrigerant requires professional handling. Clients sometimes ask us if it is possible to buy only the appliance and have it installed otherwise. Our answer remains clear: systems containing refrigerant must be installed, connected, and commissioned by qualified licensed professionals. This is a matter of safety, compliance, performance, and warranty.
At AirGreen, we offer a turnkey solution: appliance, installation, connections, commissioning, and support. This approach protects the client and ensures that the system works as intended.
Subsidies and potential eligibility
Depending on the exact model, installed capacity, current lists, and applicable program criteria, certain wall-mounted heat pumps may be eligible for subsidies, particularly under energy efficiency programs in Quebec. Criteria may vary depending on power, certification, building type, electricity rate, and program rules at the time of application.
For an installation like this in Montreal-North, we always recommend verifying final eligibility with the exact information of the installed appliance, including the indoor model number, outdoor model number, capacity, certification, and final invoice. AirGreen regularly assists its clients in this verification to avoid submission errors or unrealistic expectations.
One of the advantages of working with a company specialized in HVAC installation is precisely obtaining clear information from the outset. We help our clients understand the necessary documents, usual deadlines, and conditions to be met.
Mistakes to avoid when installing a wall-mounted heat pump
This installation in Montreal-North also highlights several common mistakes we observe in the field.
The first mistake is placing the outdoor unit too close to the ground. In Quebec's climate, this can quickly become problematic. Snow accumulation, ice, and stagnant water can reduce performance and complicate maintenance.
The second mistake is neglecting clearances around the unit. A heat pump needs air to function correctly. If the appliance is too confined, it can lose efficiency.
The third mistake is routing conduits without protection or without logic. A poorly organized run can create tension, expose lines to damage, and detract from the overall appearance of the project.
The fourth mistake is choosing an appliance solely based on price. A heat pump must be properly sized according to space, insulation, sun exposure, usage habits, and client expectations.
The fifth mistake is entrusting the installation to an unqualified person. Mini Split systems require precise skills in refrigeration, electricity, drainage, and commissioning.
Why AirGreen is often chosen for this type of project
At AirGreen, we regularly perform installations of wall-mounted heat pumps, wall-mounted air conditioners, and Mini Split systems in various environments: single-family homes, condos, duplexes, triplexes, businesses, and small residential buildings. Our experience in Montreal, Laval, Longueuil, on the North Shore, and the South Shore allows us to adapt each project to the actual building, rather than applying a standard method without consideration.
In this project in Montreal North, our added value is seen in the details: elevated support, well-positioned unit, organized ducts, maintained access, clean integration in a confined space. These are the details that ensure an installation remains reliable, pleasant to use, and easy to maintain for years.
We also know that customers are not just looking for an appliance. They want a complete solution: good advice, clean installation, serious follow-up, and clear answers. That's why we take the time to explain the options, recommend the right equipment, and perform the work according to best practices.
Maintenance Tips After Installation
To preserve the performance of a FUJITSU ALTAIR 700 Mini Split, regular maintenance is recommended. The customer can contribute to the longevity of their system by adopting a few simple good habits:
- clean the indoor unit filters according to usage;
- keep the outdoor unit clear of leaves, snow, and debris;
- avoid obstructing the air outlet;
- monitor for any unusual noises;
- have the system checked periodically by a professional;
- ensure the condensation drain remains functional.
Good HVAC maintenance helps maintain energy efficiency, reduce the risk of breakdowns, and extend the lifespan of the heat pump. In an urban environment like Montreal North, where dust, humidity, snow, and temperature variations are frequent, this step should not be overlooked.
An Installation That Combines Performance, Discretion, and Durability
This installation of a FUJITSU ALTAIR 700 Mini Split wall-mounted heat pump in Montreal North demonstrates that a successful HVAC project relies as much on equipment selection as on installation quality. The outdoor unit is compact, well-positioned, solidly supported, and carefully connected. The final result is clean, functional, and adapted to the reality of the building.
For homeowners considering a heat pump installation in Montreal, Laval, Longueuil, on the North Shore, or the South Shore, this project illustrates a professional approach: analyzing the space, choosing the right solution, protecting the equipment, respecting building constraints, and delivering a durable installation.
At AirGreen, every project is treated with the same attention. A wall-mounted heat pump is never just a device fixed to the wall. It is a complete system that must provide comfort, efficiency, reliability, and daily peace of mind.
The job tools
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.
How the job unfolds
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 we check on a job like this one
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.
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.
Good habits, once the unit is in place
Six simple habits that keep the unit going. Your list stays on this device.
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.
The right pages, at the right time
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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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).