Project

Installation of a GREE FREE MATCH R32 Quad-Zone 4-head heat pump in Pierrefonds-Roxboro

AirGreen installs a GREE FREE MATCH R32 Quad-Zone 4-head heat pump in Pierrefonds-Roxboro, featuring discreet wall units, multi-zone comfort, and local HVAC expertise.

By AirGreen Climatisation & Chauffage Admin13 min read
Installation of a GREE FREE MATCH R32 Quad-Zone 4-head heat pump in Pierrefonds-Roxboro
Installation of a GREE FREE MATCH R32 Quad-Zone 4-head heat pump in Pierrefonds-Roxboro
Generic diagram: wall-mounted heat pump, indoor and outdoor units

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.

  1. 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.

  2. The refrigerant lines, the communication cable and the drain go through the wall in a single opening, sealed against water, cold air and insects.

  3. Two insulated copper pipes connect the two units. Outside, a line cover can protect them from sun, knocks and weather.

  4. A shut-off switch near the outdoor unit isolates it safely for service. It must stay accessible at all times.

  5. The compressor and the fan. In heating mode it captures heat from the outdoor air, even in winter, and moves it inside.

  6. On the ground or on the wall, it keeps the unit above accumulated snow. The unit stays clear and defrost water can drain away.

  7. The fan needs to blow freely. Storage, a fence or a wall too close, and efficiency drops while noise goes up.

A Neat Wall-Mounted Installation in a Multi-Zone Setup Designed for Daily Comfort

In Pierrefonds-Roxboro, our AirGreen team installed a GREE FREE MATCH R32 Quad-Zone heat pump, configured to supply 4 indoor zones with a single compatible outdoor unit. The provided photo shows one of the GREE wall-mounted units installed on the property: a compact, white, discreet unit, placed very close to the ceiling in a carefully selected corner to optimize air distribution while respecting the physical constraints of the room.

This type of installation is particularly appealing in West Montreal homes, where living spaces are often spread over several levels or divided into zones with very different needs. A bedroom, an office, a living room, and a basement never react the same way to summer heat, humidity, or winter temperature fluctuations. A 4-head Quad-Zone heat pump precisely allows these spaces to be treated independently, with more precision than a single system placed in one room.

In this project in Pierrefonds-Roxboro, the objective was to provide an efficient, neatly integrated heating and air conditioning system, capable of improving comfort in multiple rooms without multiplying outdoor units around the building. The GREE FREE MATCH R32 series responds very well to this type of need, as it offers great installation flexibility and modern technology using R32 refrigerant.

A Wall-Mounted Unit Installed in a Restricted but Well-Utilized Space

The image shows a wall-mounted unit installed near a corner, with very little superfluous visual clearance around the appliance. This kind of location requires special attention. One must consider upper clearance, side clearance, airflow, air intake, refrigerant line routing, condensate drain, and future access for HVAC maintenance.

A clean installation is not just about mounting the unit on the wall. It must be stable, straight, well-connected, quiet, and positioned to avoid uncomfortable direct drafts. In a closed or semi-closed room, the choice of airflow direction directly influences comfort quality. A poorly placed wall-mounted unit can create an overly cold zone near the appliance, while leaving the other part of the room insufficiently treated.

Here, the high placement allows air to distribute efficiently throughout the room. The sleek design of the GREE unit also aids in interior integration: it remains visible, of course, but without visually dominating the space. For homeowners, this discretion is extremely important, especially in a bedroom, office, or regularly used room.

Why a Quad-Zone Solution is Relevant in Pierrefonds-Roxboro

Properties in Pierrefonds-Roxboro often feature varied configurations: single-family homes, cottages, renovated bungalows, rear extensions, finished basements, upstairs bedrooms, or home offices. A single wall-mounted air conditioner can sometimes improve a main area, but it doesn't always resolve temperature discrepancies between rooms.

With a GREE FREE MATCH R32 Quad-Zone heat pump, the customer benefits from four indoor distribution points. Each head can be installed in a strategic zone to offer more balanced comfort. This allows, for example, cooling a living area in the afternoon, maintaining a comfortable bedroom at night, heating an office during cold periods, and better managing a basement or a more distant room.

This approach is particularly useful when occupants do not use all rooms at the same time. Instead of treating the entire house uniformly, the system allows for adapting comfort according to the actual use of spaces. This is one of the great advantages of a well-sized multi-zone heat pump.

The GREE FREE MATCH R32: A Flexible Technology for 4-Head Installations

The GREE FREE MATCH R32 is designed for projects where multiple indoor units need to operate from a single outdoor unit. In a 4-Zone – 4-Head configuration, the system allows serving multiple rooms while limiting outdoor footprint. For many homeowners in Montreal, Laval, Longueuil, the North Shore and the South Shore, this solution represents an excellent compromise between personalized comfort, efficiency, and architectural integration.

The choice of R32 refrigerant is also part of modern HVAC technologies. This refrigerant is used in many recent heat pump and wall-mounted air conditioner systems, particularly for its thermal performance and efficiency in residential applications.

A System Designed for Multiple Uses in the Same House

In a quad-zone installation, each indoor head plays a precise role. It should not be chosen or positioned randomly. A south-facing room may require more cooling capacity. A smaller bedroom must be treated with caution to avoid overly short cycles. A basement may need special attention to humidity and heating. An open area may require positioning that promotes wider diffusion.

At AirGreen, we analyze these elements before installation. The goal is to avoid common mistakes: a head that is too powerful in a small room, a unit placed facing a bed, a poorly planned drain, airflow blocked by furniture, or an installation that complicates future maintenance.

The Concrete Advantages of a Quad-Zone Heat Pump

A GREE FREE MATCH R32 4-head heat pump offers several significant benefits for homeowners:

  • independent temperature management in four zones;
  • better distribution of comfort in multi-room homes;
  • a single outdoor unit instead of several separate systems;
  • cleaner installation around the building;
  • more targeted use according to the time of day;
  • improved comfort in summer thanks to air conditioning and dehumidification;
  • heating contribution during a large part of the cold season;
  • solution adapted to complex residential projects.

For a sector like Pierrefonds-Roxboro, where many houses have been built or renovated at different times, this flexibility is very useful. It allows adapting the system to the reality of the building rather than imposing a standard solution.

The Importance of Sizing in a 4-Head Project

Sizing is one of the most important steps in a multi-zone HVAC installation. It is not enough to choose a unit based on the total area of the house. Each zone must be evaluated separately. The most important factors are:

  • the room's surface area;
  • the ceiling height;
  • insulation;
  • the number and size of windows;
  • solar orientation;
  • the floor where the room is located;
  • natural air circulation;
  • daily use of the space;
  • the presence of appliances or heat sources;
  • the occupants' comfort preferences.

In this project, the wall-mounted head visible in the photo was installed in a space where positioning had to be precise. The wall corner, the close ceiling, and the connection constraints required a clean and thoughtful installation. This is exactly the kind of detail that distinguishes a quick installation from professional work.

A Clean Interior Installation: The Details That Change Everything

A properly installed wall-mounted unit must remain accessible, functional, and visually acceptable. In the photo, the unit is installed high up, with a sleek finish and a well-integrated appearance. The customer thus benefits from an appliance that does not detract from the room's decor.

Condensate Drainage Management

Each indoor unit produces water in cooling mode, especially during humid summer days in Montreal. This water must be properly drained. A poorly installed drain can cause odors, overflows, wall stains, or avoidable service calls.

In a multi-zone installation, drain management becomes even more critical, as each indoor head has its own pathway. Our technicians plan the slopes, outlets, and connections to minimize the risk of backflow or stagnation.

Refrigerant Lines and Insulation

Behind each wall-mounted unit are refrigerant lines, communication cables, and a drain. These elements must be installed according to best practices. The pipes must be well insulated to limit energy losses and prevent condensation. Connections must be clean, leak-proof, and accessible when possible.

For a GREE FREE MATCH R32 system, the quality of connections is essential. A multi-zone system involves several circuits; each must be rigorously tested before commissioning. A small error on one line can affect the performance of a zone or complicate overall operation.

Quiet Operation

Comfort is not limited to temperature. Noise level is also an important criterion, especially in a bedroom or office. A wall-mounted unit must be solidly installed, without parasitic vibrations. The unit must be well fixed, and its placement must avoid unnecessary resonances. In a project like this, our team pays attention to these details so that the appliance is pleasant to use daily.

Mistakes to Avoid Before Choosing a Multi-Zone Heat Pump

Homeowners comparing different options for a heat pump in Pierrefonds-Roxboro, Montreal, Laval, Longueuil, on the North Shore or South Shore should avoid certain common mistakes.

Choosing Only Based on BTU Count

A high BTU number does not guarantee better comfort. An oversized unit can cycle too short, cool quickly without dehumidifying properly, and create an uncomfortable cold draft sensation. An undersized unit can run too long without reaching the desired temperature.

Placing Heads Without Considering the Actual Use of Rooms

A wall-mounted unit installed in the wrong place can be uncomfortable, even if the equipment is of high quality. It is important to avoid blowing directly onto a bed, desk, or sofa. Consideration must also be given to doors, hallways, windows, and obstacles.

Neglecting Future Maintenance

A system must be maintainable. Filters must be accessible. The outdoor unit must be inspectable. Drains must be verifiable. An installation that seems convenient on day one but becomes difficult to maintain can cost more in the long run.

Ignoring Subsidies and Documentation

Subsidy programs can represent a significant financial advantage, but they generally require precise documents. The exact model, technical references, installed combinations, and invoice must be clear. At AirGreen, we help our clients understand the necessary information to prepare their file.

A Project Reflecting the AirGreen Approach

This installation in Pierrefonds-Roxboro illustrates our working method: analyzing the building, choosing a suitable solution, neatly installing each component, and explaining to the client how to use their system efficiently. A Quad-Zone 4-head heat pump is not just a simple appliance mounted on the wall. It is a complete system that must function in harmony.

Our teams regularly carry out this type of project in Greater Montreal, particularly in Montreal, Laval, Longueuil, on the North Shore and South Shore. We are accustomed to residential constraints: narrow walls, difficult-to-serve rooms, limited outdoor access, electrical panels to adapt, complex drains, co-ownership requirements, and high aesthetic expectations.

What the Customer Gets After Installation

Once the system is operational, the customer benefits from more precise comfort control. Zones can be adjusted according to actual needs. A bedroom can stay cool at night. An office can be heated in the morning. A sun-exposed room can be air-conditioned without unnecessarily affecting the rest of the house.

This flexibility makes daily life more pleasant, especially in a house where occupants do not all have the same preferences. The GREE FREE MATCH R32 allows for this finer management, provided the installation is well thought out from the start.

Usage and Maintenance Tips for Lasting Performance

To preserve the performance of a GREE FREE MATCH R32 heat pump, a few simple actions are essential:

  • regularly clean the filters of the indoor units;
  • keep the space around the units clear;
  • avoid blocking airflow with furniture or curtains;
  • monitor condensate drainage;
  • keep the outdoor unit free of snow, leaves, and debris;
  • use stable temperature settings rather than making large, frequent changes;
  • schedule professional periodic HVAC maintenance;
  • contact a specialist if one zone seems less efficient than others.

A well-maintained multi-zone system maintains better efficiency, operates more quietly, and reduces the risk of premature problems.

A Sustainable Solution for Residential Comfort in Pierrefonds-Roxboro

The installation of this GREE FREE MATCH R32 Quad-Zone 4-head heat pump in Pierrefonds-Roxboro demonstrates the importance of a personalized approach. The wall-mounted unit visible in the photo may seem simple at first glance, but it represents part of a complete system where every detail matters: location, drainage, connections, sizing, commissioning, and future maintenance.

For homeowners who want to improve their comfort without installing a complete central system, the multi-zone solution offers excellent flexibility. It allows for targeting important rooms, better temperature control, and reducing comfort disparities between zones.

At AirGreen, we prioritize clean, durable installations tailored to real needs. This project in Pierrefonds-Roxboro exemplifies this approach: a modern HVAC solution, discreet integration, R32 technology, four comfort zones, and professional execution designed for the conditions of Greater Montreal.

The steps

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.

Step 1 of 9The on-site estimate

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.

  1. 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.
  2. The quoteModel, capacity and price, in writing. We also check whether the model qualifies for assistance programs.
  3. Getting readyFloors and furniture protected, wall plate position marked level, wall opening located.
  4. The wall openingA single opening, with the slope the drain needs to flow outside.
  5. The outdoor unitSet on a stand raised above the snow, with the clearances the manufacturer requires.
  6. Lines, cable and drainConnected, insulated and protected. The opening is then sealed against water, cold air and insects.
  7. The electrical workA dedicated circuit and an accessible disconnect near the outdoor unit.
  8. Tests and start-upLeak test, vacuum, then start-up and a check of heating and cooling.
  9. The walkthroughRemote, modes, filters: we show you the essentials before we leave.
Your numbers

And at your place?

Two quick checks with real numbers: what heat costs, and what your current heaters add up to in BTU/h.

Size checkYour baseboards, in BTU/h
–BTU/h of installed electric heat

    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.

    Through the seasons

    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.
    And at your place?

    Which type of equipment for your project?

    Pick what looks like your need.

    Mistakes avoided

    Four mistakes we do not make

    Flip each card to see what we do instead.

    Frequently asked questions

    What people ask us about this kind of work

    12 questions
    Does a wall-mounted heat pump heat in winter?
    Yes, it heats and cools. Its capacity drops in very cold weather; the operating range depends on the model and is listed on its spec sheet.
    Wall-mounted or multi-zone: how do I choose?
    One wall head and one condenser outside: the direct solution for a room or an open area. For two to five rooms, a multi-zone puts one head in each room on a single condenser.
    Where does the outdoor unit go?
    Where it stays above the snow, clear and accessible, away from walkways. We decide it with you during the estimate.
    Are there grants?
    Depending on the model and your situation, assistance programs may apply, including Hydro-Québec's LogisVert. AirGreen checks the model number before quoting an amount. See the grants.
    Do I need a permit?
    Rules vary from city to city: location, distances, noise. See permits and by-laws, and we check for your address.
    How cold can it heat?
    It depends on the model. According to Hydro-Québec, newer models work down to a temperature between −15 °C and −25 °C, and some cold-climate models are certified lower. The minimum temperature is on each unit's spec sheet.
    How much can I save?
    Hydro-Québec says a heat pump can be up to three times more efficient than baseboards for heating in the colder months. The result depends on the house, the climate and how it is used.
    How is the LogisVert assistance calculated?
    For ENERGY STAR cold-climate certified heat pumps, Hydro-Québec lists assistance of $120 per 1,000 BTU/h of heating capacity at −8 °C. AirGreen checks the exact model before quoting an amount; only Hydro-Québec confirms the assistance granted. See the grants.
    Is it noisy?
    The sound level depends on the model and is listed in decibels on each unit's spec sheet. Location matters too: when possible, we avoid putting the outdoor unit under a bedroom window.
    The outdoor unit is covered in ice: is that normal?
    Some frost is: the unit runs defrost cycles. Never hit the ice. If the unit stays iced up or stops heating, call us.
    Does AirGreen hold the required licences?
    Yes. AirGreen holds RBQ licence 5645-9605-01, subclasses 15.8 Ventilation, 15.10 Refrigeration and 16 Electricity.
    Is the estimate free?
    Yes. The on-site estimate is free and the quote follows within 24 hours. Book my free estimate.
    Going further

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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).

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