Project

Installation of a GREE AIRY R32 Mini Split wall-mounted heat pump in Delson

AirGreen installs a GREE AIRY R32 Mini Split wall-mounted heat pump in Delson: outdoor unit on wall brackets, clean finish on brick, and reliable HVAC comfort.

By AirGreen Climatisation & Chauffage Admin13 min read
Installation of a GREE AIRY R32 Mini Split wall-mounted heat pump in Delson
Installation of a GREE AIRY R32 Mini Split wall-mounted heat pump in Delson
–chapters in this story
13 minreading time
–type of installation
2026year published
The tour

Take a tour of the installation

Each number is a point we check on site. Switch between summer and winter to watch air and heat move.

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.

The job

A compact and neat installation on a brick wall in Delson

In Delson, this installation of a GREE AIRY R32 wall-mounted heat pump demonstrates how a mini-split wall-mounted air conditioner project can require a precise combination of technical know-how, building assessment, and exterior finishing. The project photo shows the GREE outdoor unit installed on wall brackets, directly on a brick facade, in a confined space near a door, an existing metal duct, and already established landscaping. This type of installation demands rigor: the unit must be securely fastened, properly leveled, adequately clear, and installed in a way that facilitates future access for HVAC maintenance.

In this Delson home, the choice of a GREE AIRY R32 met a clear need: to obtain an effective heating and air conditioning solution without resorting to a complex central system. A wall-mounted heat pump is often ideal for treating a main area, a floor, a room that is difficult to temper, or a space where comfort varies greatly between seasons. Here, the exterior installation reveals meticulous work on an existing facade, with particular attention paid to stability, unit protection, and visual integration.

At AirGreen, we carry out this type of project throughout the greater Montreal area, including Laval, Longueuil, the North Shore, and the South Shore. In Delson, as in several residential sectors of the South Shore, houses often have brick walls, narrow side accesses, back doors, outdoor stairs, existing ducts, and space constraints that require precise planning before installation.

The GREE AIRY R32: a wall-mounted heat pump adapted to modern residential needs

The GREE AIRY R32 is one of the modern wall-mounted solutions designed to offer a good balance between performance, comfort, and energy efficiency. In a mini-split type installation, the indoor unit ensures air distribution in the room, while the outdoor unit manages heat exchange. This configuration provides effective air conditioning in summer and useful heating for a large part of the year.

The use of R32 refrigerant represents a significant advantage. This refrigerant is increasingly used in recent HVAC equipment, notably because it allows for good thermal performance while offering an improved environmental profile compared to several older refrigerants. In the photo, the visible label on the outdoor unit also confirms the presence of R32, a relevant technical detail for owners who wish to invest in current technology.

A GREE AIRY R32 heat pump is particularly interesting for owners who want to:

  • improve the comfort of a main living area;
  • reduce temperature variations in a problematic room;
  • add efficient air conditioning without installing a complete central system;
  • benefit from efficient auxiliary heating in mid-season;
  • obtain a discreet and well-integrated solution for the home;
  • more easily control the temperature of a specific area.

In this project in Delson, the machine was selected to meet a concrete residential reality: offering reliable comfort while respecting the physical constraints of the building.

An outdoor unit installed on wall brackets: stability, clearance, and protection

One of the most visible elements of this installation is the positioning of the GREE outdoor unit on metallic wall brackets. This choice is not insignificant. Installing an outdoor unit on brackets allows it to be kept above the ground, which can be very useful in a climate like Quebec's, where snow, ice, runoff water, and debris can harm a poorly positioned appliance.

In Delson, this approach was particularly relevant. The photo shows a unit placed against a brick wall, slightly elevated from the base of the building. The brackets keep the unit stable, well-ventilated, and accessible. They also help limit direct contact with the ground, which helps preserve the unit over time.

For a successful outdoor installation, several criteria must be met:

  • a solid support adapted to the unit's weight;
  • secure anchoring in an appropriate surface;
  • sufficient clearance around the fan;
  • positioning that avoids excessive snow accumulation;
  • light protection against obstacles and impacts;
  • reasonable access for future maintenance and checks;
  • a leveled installation to promote proper functioning.

In this project, the outdoor unit was carefully placed so as not to hinder passage near the door and to respect the available space on the facade. This type of decision is important, especially when a house already has several fixed elements: outdoor door, wall duct, wiring, brick, metal structure, and circulation area.

Challenges of an existing brick installation

Installing a wall-mounted heat pump on a brick facade requires more attention than an installation on an open and clear surface. Brick is durable, but it must be worked on systematically. The drillings must be clean, the anchors must be suitable, and vibrations must be taken into account to ensure a stable installation.

In this Delson house, the red brick wall presents a typical configuration of several properties on the South Shore. The unit had to be installed without unnecessarily damaging the facade, while allowing the passage of refrigerant lines, wiring, and drainage. Everything had to remain clean, functional, and compliant.

Another important aspect is integration around existing elements. In the photo, we notice a wall duct in the upper right, a panel or a sealed area on the brick, an exterior door on the left, and a vertical metal structure near the unit. These elements reduce positioning options. Our team therefore had to choose a location that respects technical clearances while maintaining good accessibility.

In a residential HVAC installation, it is not enough to find an available wall. It is necessary to determine if the location is truly appropriate for performance, durability, noise, safety, and maintenance.

Why outdoor positioning directly impacts performance

The outdoor unit of a mini-split needs good airflow. If it is installed too close to an obstacle, in a poorly ventilated corner, or in a place where debris accumulates, its performance can be affected. The fan visible at the front of the GREE unit must be able to freely discharge or absorb air depending on the operating mode.

In this project, installation on wall brackets helps maintain good airflow around the unit. It also better protects the unit against certain ground-related risks: snow accumulation, puddles, dirt, dead leaves, or accidental impacts.

Poor outdoor installation can lead to several problems:

  • decrease in cooling or heating performance;
  • excessive noise or vibration;
  • accumulation of ice or snow around the unit;
  • difficulty of access for maintenance;
  • premature wear of certain components;
  • discomfort for occupants or neighbors.

That's why we always take the time to evaluate the outdoor environment before finalizing the positioning. In Delson, the installation had to be compact, but it should not compromise the functioning of the GREE AIRY R32.

An ideal mini-split solution for South Shore homes

Homeowners in Delson, Candiac, Saint-Constant, La Prairie, Brossard, and the surrounding areas often look for efficient yet discreet HVAC solutions. A GREE AIRY R32 wall-mounted heat pump is well suited to this type of need, especially when the goal is to quickly improve comfort without undertaking major ventilation work.

A mini-split system can be installed in several contexts:

  • a house without ventilation ducts;
  • an extension or a renovated room;
  • a ground floor that is difficult to cool;
  • a master bedroom that is too hot in summer;
  • a finished basement;
  • an apartment or condo with space constraints;
  • a property where installing a central system would be too invasive.

In this Delson installation, the compact outdoor unit and the wall-mounted approach help preserve ground space. This is an important advantage for side or backyards where every circulation area matters.

Key steps of the installation carried out by AirGreen

A wall-mounted heat pump installation is never limited to fixing the outdoor unit and installing the indoor unit. The work includes a series of technical steps that must be executed with precision.

For this project, our team followed a structured approach:

  1. Assessment of comfort needs
    We first determined the area to be treated, usage habits, and the client's expectations for heating and cooling.
  2. Choice of indoor and outdoor location
    The location of the indoor unit influences air distribution. The location of the outdoor unit influences performance, noise, access, and durability.
  3. Preparation for pipe routing
    Refrigerant lines, wiring, and drainage must follow a clean and logical path between the two units.
  4. Installation of wall brackets
    The brackets must be securely anchored, aligned, and suitable for the outdoor unit.
  5. Placement of the GREE outdoor unit
    The appliance must be precisely positioned to ensure stability, clearance, and accessibility.
  6. Technical connections
    Refrigerant and electrical connections must be made according to industry standards.
  7. Vacuuming and leak detection
    This step is essential to ensure the reliability of the refrigerant circuit.
  8. Commissioning and validation
    We test heating and cooling operation, then explain to the client the best practices for use and maintenance.

Mistakes to avoid with a wall-mounted heat pump

Several problems observed in the field stem from poorly planned installations. Even a good machine can yield disappointing results if installed in the wrong place or if certain steps are neglected.

Here are the most common mistakes to avoid:

  • installing the outdoor unit too close to the ground;
  • neglecting clearances around the fan;
  • fastening supports without considering the wall structure;
  • poorly managing condensate drainage;
  • installing the unit in a hard-to-reach place for maintenance;
  • choosing a unit without considering the actual room volume;
  • underestimating vibrations on a brick wall;
  • routing pipes without a clean finishing plan.

In Delson, these risks were anticipated from the outset. The wall mounting, the alignment of the supports, and the clearance of the outdoor unit were designed to ensure a durable installation.

HVAC Maintenance: preserving the performance of the GREE AIRY R32

Once the GREE AIRY R32 heat pump is installed, maintenance becomes an essential factor in maintaining its efficiency. A well-maintained system consumes less, operates more quietly, and lasts longer.

We recommend that homeowners pay attention to several elements:

  • regularly clean the indoor unit's filters;
  • clear the outdoor unit after snowstorms;
  • check that no debris blocks the fan;
  • avoid storing objects near the unit;
  • plan periodic HVAC maintenance;
  • monitor for any unusual noise or performance decrease.

In a region like Delson, where winters can bring snow, ice, and freeze-thaw cycles, wall-mounted placement helps reduce certain risks, but it does not replace regular maintenance.

Subsidies and energy efficiency: properly documenting your installation

Financial assistance programs related to heat pumps can represent a significant advantage for Quebec homeowners. Eligibility depends on the exact model installed, current criteria, and the documents required at the time of application.

For an installation like that of this GREE AIRY R32, it is important to keep:

  • the detailed invoice;
  • the model numbers of the units;
  • technical information;
  • proof of installation;
  • documents provided by the contractor;
  • any confirmation related to the criteria of the applicable program.

At AirGreen, we know that customers want not only a good installation, but also a clear post-work experience. We provide the necessary information to help them complete their procedures when their equipment is eligible.

An installation representative of our local expertise

This project in Delson truly reflects our working method on the South Shore. Each house has its unique characteristics. Some installations appear simple but require meticulous planning due to available space, exterior siding type, access points, or existing elements on the facade.

The photo shows a compact, clean installation, well-integrated into an existing brick wall. The final result allows for a modern wall-mounted heat pump without cluttering ground space or compromising access around the house.

Our experience in wall-mounted air conditioner, mini-split, heat pump, HVAC installation, and HVAC maintenance projects allows us to adapt our methods to each building. Whether the project is in Montreal, Laval, Longueuil, on the North Shore or the South Shore, we apply the same rigor: install the equipment correctly, protect long-term performance, and deliver a clean result.

A reliable result for residential comfort in Delson

The installation of this GREE AIRY R32 Mini Split wall-mounted heat pump in Delson offers a concrete solution to improve residential comfort while respecting the external constraints of the building. The outdoor unit, installed on wall mounts against a brick facade, illustrates a professional approach where stability, clearance, accessibility, and finish are taken into account.

For homeowners considering a heat pump or wall-mounted air conditioner in Delson, this installation demonstrates the importance of entrusting the project to a team that understands both the technical requirements and the realities on the ground. A high-performance machine must be accompanied by a solid, clean, and durable installation.

At AirGreen, we help customers in Delson and throughout the greater Montreal, Laval, Longueuil, North Shore, and South Shore regions choose and install HVAC solutions tailored to their homes. The GREE AIRY R32 installed here is an excellent example of a modern, efficient, and well-integrated wall-mounted system, designed to provide reliable comfort season after season.

The steps

The big day, step by step

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

What would it look like 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.

    Mistakes avoided

    Four mistakes we do not make

    Flip each card to see what we do instead.

    Going further

    Your own project, step by step

    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.
    At your place

    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.

    0 / 6 checked
    True or false

    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.

    2. You pick the capacity with a simple square-footage rule.

    3. A multi-zone connects several indoor heads to a single condenser.

    4. The disconnect can sit behind the patio furniture.

    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.

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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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