Installation of a Gree FreeMatch MultiZone heat pump in Ville-Marie (Montreal)
Discover a Gree FreeMatch residential installation in Ville-Marie : a discreet, efficient MultiZone heat pump ideal for urban comfort. Installation details, advantages, and maintenance, by AirGreen.

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.
In Ville-Marie apartments, you often find open-concept living spaces, closed bedrooms, large windows, and… significant temperature variations from one room to another. This is exactly the kind of situation where a MultiZone heat pump makes perfect sense: you want efficient air conditioning in the summer, comfortable heating in the winter, and above all, you want to manage comfort room by room without altering the decor.
For this project, we installed a Gree FreeMatch system, a coherent choice for an urban apartment/condo: performance, modularity and discreet integration.
The context: stable comfort in a “city centre” interior
The photo shows a wall-mounted unit installed high up in a bright room, with moldings and a neat finish. In this type of environment, our priorities are clear:
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Maintain the aesthetic appeal (clean lines, few visible gutters)
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Optimize air distribution (high positioning, clearances respected)
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Reduce noise (careful system and installation)
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Ensure reliable condensation drainage (summer and mid-season)
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Preparing efficient heating for the Quebec winter
Type of system installed
This is a MultiZone heat pump (mini-split multi-zone) , with an indoor wall unit. The brand name provided manually is used as a reference: Gree FreeMatch .
Model (consistent with the range)
Since the exact model isn't visible in the photo, we'll use a realistic and consistent identification: Gree FreeMatch (MultiZone) – a new generation multi-zone platform , generally configured into 2 to 3 zones depending on the floor plan (living room + bedroom(s), for example). The key point is the principle: a single outdoor unit can power several indoor units , each with its own control.
Why choosing Gree FreeMatch is relevant in Ville-Marie
In city centers, a balance between performance, flexibility, and ease of use is often sought. A multi-zone system like FreeMatch is particularly appealing when:
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The living room and the bedroom do not have the same needs
Sunlight by the window, cooking, electronic devices, doors closed at night… We avoid “thermostat wars”. -
We want to reduce the external footprint
A MultiZone often makes it possible to avoid several condensers, which is appreciated on balconies, terraces or facades. -
We want a four-season solution
A properly sized, properly installed and well-maintained heat pump becomes a true pillar of comfort from spring to winter.
Prominent installation details that can be observed (and why it matters)
In the photo, the indoor unit is installed very high on the wall , above the level of the picture frames. This is generally a good sign: it promotes air circulation and limits "dead" zones.
1) High and centered positioning
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Better diffusion in the room
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More consistent comfort, less direct "air blast" on the occupants
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More discreet visual integration (the unit blends into the upper part of the wall)
2) Managing connections and clean finishing
The meticulous finish is noticeable: the goal in condominiums is always to achieve a clean, uncluttered look, with refrigerant lines and the exhaust vent neatly finished. At AirGreen, the focus is on:
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short and optimized routes,
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discreet passages,
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an installation designed to facilitate future maintenance.
3) Drainage treatment (condensation)
Even if it doesn't look "spectacular" in a photo, it's a critical point. A heat pump in cooling mode produces water (condensation). In urban areas, this is sometimes encountered:
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slope constraints,
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load-bearing walls,
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drilling limits,
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distances to a suitable drain.
Our approach: secure drainage to avoid any surprises (drips, overflows, marks on the wall) and guarantee reliable long-term operation.
How does the AirGreen installation typically proceed? (field summary)
Even when everything seems simple “on paper,” a condo in Montreal always requires precision. Here is our usual sequence for a project like this:
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Technical validation
Survey of possible locations, clearances, air circulation, drilling constraints, routing of lines. -
Sizing and logic of zones
We make sure that the MultiZone meets the real need: surface area, orientation, heat loss, lifestyle habits (closed doors, teleworking, etc.). -
Installation of the indoor unit
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Secure fixing
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Perfect level (important for drainage)
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Verification of recommended clearances
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Connections and sealing
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Refrigerant connections
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Pressure/Leak Tests
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Vacuum sealing according to best practices
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Commissioning
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Startup
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Control of blower temperatures
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Drainage check
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Explanations for the customer (modes, remote control, best practices)
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The result: comfort, quietness, and room-by-room control.
Once the Gree FreeMatch heat pump is in operation, the effect is usually immediate:
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More stable temperatures during the "between seasons" periods
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Efficient air conditioning without unnecessary overconsumption
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Smart supplementary heating (and sometimes primary heating depending on the dwelling)
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Personalized comfort: each zone can be adjusted according to needs
In the city centre, it's also a question of quality of life: sleeping in cool conditions in the summer, avoiding overheating in the spring, and improving daily comfort without compromising on the look of the room.
Maintenance: 5 tips to protect your performance
To ensure the heat pump maintains its efficiency (and longevity), we recommend:
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Clean the filters every 4 to 8 weeks (more often if there are pets/dust)
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Keep the unit clear (curtains, furniture, dust accumulation)
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Watch for simple signs: odor, abnormal noise, decreased airflow
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Perform periodic professional maintenance (deep cleaning, checks)
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In winter: avoid obstructing ventilation and ensure the system operates without abnormal cycles.
At AirGreen, we offer complete support: installation, optimization, maintenance and practical recommendations tailored to your building.
Why entrust a MultiZone to AirGreen
A MultiZone system isn't just about "installing a wall-mounted unit." Success depends on details: location, line routing, drainage, vacuum sealing, calibration, and finishing. In an urban environment like Ville-Marie , the difference between "it works" and "it's perfect" lies in the execution.
Our goal: a clean , reliable installation designed to last — with comfort that can be felt from day one.
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.
Which type of equipment for your project?
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Four mistakes we do not make
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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?
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).
