An HVAC installation in a semi-covered space where precision mattered as much as cooling power
In Verdun, our AirGreen team carried out the installation of a wall-mounted heat pump GREE LIVO R32, a mini split system of the wall air conditioner type perfectly suited to the needs of an urban residential building where the available outdoor space was limited. The project photo shows a very particular configuration: the outdoor unit is installed under a covered structure, fixed to the wall on metal supports, with a low ceiling, exposed beams, a nearby window, a foundation wall, and existing technical elements to work around.
This type of environment is common in certain areas of Verdun, especially in alleys, narrow backyards, spaces under balconies, semi-sheltered areas, or older buildings where adding a heat pump must be carefully considered. Here, the goal was not simply to install an outdoor unit. The device had to be installed safely, maintain good air circulation, preserve floor access, limit vibrations, and organize the passage of refrigerant lines in an already crowded space.
The GREE LIVO R32 was chosen for its compact size, Inverter operation, and use of the refrigerant R32. The BTU capacity was selected according to the actual needs of the indoor area to be cooled and heated, taking into account the surface area, insulation, orientation of the dwelling, and air circulation. At AirGreen, this sizing is an essential step: a poorly calibrated device can harm comfort, waste energy, and reduce customer satisfaction.
An unusual location under a low ceiling
The most striking aspect of this installation in Verdun is the location of the outdoor unit. Unlike a classic installation on an open facade or on a ground slab, the device was installed in a semi-covered space, under an existing structure. The painted metal beams, the worn ceiling, the foundation wall, and the technical environment around the unit are clearly visible.
In this context, our primary concern was air circulation. An outdoor wall-mounted heat pump unit must be able to properly draw in and expel air. When a unit is installed too close to a ceiling, side wall, or obstacle, air recirculation, increased operating pressure, and reduced efficiency can occur. Before finalizing the location, our team checked clearances, available space openings, and the direction of air discharge.
Wall mounting allowed clearing the floor and keeping the unit at a practical height. In a space like this, the floor can be used for passage, temporary storage, or technical access. Placing the unit on solid wall mounts prevents it from being directly exposed to dirt, accumulated water, debris, and minor impacts that can occur in a work or traffic area.
Wall mounts adapted to weight, vibrations, and the building
In the photo, the GREE outdoor unit rests on two metal mounts fixed to the wall. This choice is important. A durable HVAC installation depends as much on the quality of the unit as on the strength of its mounting. The existing wall, made of a foundation section and an older surface part, required special attention to choose the right anchoring points.
Our technicians carefully positioned the mounts to properly distribute the load, keep the unit level, and reduce vibrations transmitted to the structure. In Verdun buildings, where some constructions are several decades old, this caution is essential. A rough attachment can create noise, crack a fragile surface, or complicate future maintenance.
The choice of wall mounts offers several advantages in this project:
- the unit stays elevated from the ground;
- access under the unit remains possible;
- risks related to water, dust, and debris are reduced;
- the fan maintains adequate front clearance;
- maintenance remains simpler;
- the installation is cleaner and better integrated into the available space.
Why the GREE LIVO R32 was a good choice for this setup
The GREE LIVO R32 is a wall-mounted model well suited for residential installations where an efficient, compact, and reliable system is desired. Its Inverter compressor allows the unit to modulate its operation according to actual demand, which promotes a more stable indoor temperature and avoids abrupt cycles.
In a Verdun home, this stability can make a big difference. Urban buildings may have narrower rooms, shared walls, sun-exposed windows, or sections that are harder to cool. A well-placed wall air conditioner helps correct these variations and improve daily comfort, especially during the hot and humid periods of the Montreal summer.
The refrigerant R32, indicated on the unit, is one of the important technical features of this system. It requires rigorous installation, especially for refrigerant connections, vacuuming, leak testing, and commissioning. At AirGreen, these steps are carried out methodically because they directly affect the reliability of the heat pump.
An installation in an urban environment: restricted access, low ceiling, and existing elements
The environment visible in the photo shows several real constraints. You can see beams, a small window, existing cables, a covered structure, and tools on the floor during the work phase. These details clearly illustrate the reality of an installation in an existing building: you have to adapt to the place, not the other way around.
Our team had to deal with:
- a low ceiling above the outdoor unit;
- an existing metal structure;
- an old wall surface;
- a nearby window;
- limited workspace;
- existing cables and technical elements;
- the need to keep sufficient clearance in front of the fan;
- the requirement to provide access for HVAC maintenance.
Every decision was made to achieve a balance between performance, safety, durability, and accessibility. In a project like this, it would have been risky to install the unit too low, too close to an obstacle, or on an insufficiently stable surface. The final solution allows the device to operate properly while fitting into the available space.
The technical steps that make the difference
A mini split installation is never just about mounting the outdoor unit. The invisible steps are often those that determine the quality of the result.
Refrigerant line routing analysis
We first validated the passage of refrigerant lines between the indoor and outdoor units. In an older building, the route must be carefully chosen to avoid excessive bends, areas prone to damage, and passages difficult to maintain.
Mounting and leveling
The supports were positioned to ensure a solid base. An improperly leveled outdoor unit can cause vibrations, hinder internal drainage, and accelerate wear on certain components.
Refrigerant connections
The fittings must be clean, well tightened, and tested. The quality of the connection affects performance, compressor lifespan, and system stability.
Vacuuming
Vacuuming removes air and moisture from the circuit before startup. This step is essential for a wall-mounted heat pump operating with R32.
Operational tests
After commissioning, we check the operation in cooling mode, the unit's response, noise level, communication between components, and the absence of abnormal behavior.
What Verdun homeowners should remember before installing a wall-mounted heat pump
The installation of a GREE LIVO R32 wall-mounted heat pump in Verdun shows how much the building's configuration influences the final result. In several neighborhoods of Montreal, Laval, Longueuil, the North Shore, and the South Shore, properties do not always offer a simple outdoor space. It is precisely in these situations that the expertise of an HVAC installer becomes crucial.
Common mistakes to avoid in a semi-covered space
A semi-covered space may seem practical because the unit is partially protected from the weather. However, certain mistakes should be avoided.
Installing the unit in a space that is too enclosed
An outdoor heat pump must expel air freely. If the space is too confined, the device may recycle its own air, which reduces its efficiency.
Neglecting ceiling height
A ceiling that is too close can hinder heat dissipation. The entire space must be analyzed, not just the wall where the unit will be mounted.
Forgetting maintenance access
Even if the installation is neat, it must remain accessible. A technician must be able to inspect, clean, and diagnose the device without excessive difficulty.
Mounting the unit on a fragile surface
Supports must be anchored to a suitable structure. An old or uneven wall requires serious analysis before installation.
Leaving refrigerant lines unprotected
Ducts must be protected against friction, impacts, and outdoor conditions. A professional finish extends the installation's lifespan.
Customer experience: more comfort without sacrificing usable space
For the customer, the result is simple: a wall air conditioning and supplementary heating solution that improves indoor comfort without unnecessarily taking up floor space. In an urban building, this point is important. Every square foot counts, especially in yards, garages, passageways, or semi-covered areas.
The GREE LIVO R32 heat pump allows better control of the targeted area's temperature. In summer, it helps reduce heat and humidity. During cooler periods, it can provide efficient heating depending on the outdoor temperature and housing needs. The Inverter system gradually adjusts its operation, which helps maintain more consistent comfort.
Grants and eligibility: a verification to be done according to the exact combination
Some wall-mounted heat pumps may be eligible for financial aid programs depending on current criteria, BTU capacity, exact model numbers of the indoor and outdoor units, as well as applicable energy requirements. For a GREE LIVO R32 model, eligibility must be verified at the time of submission with the exact installed combination.
At AirGreen, we support our clients through this verification. We provide the necessary information about the device, a detailed invoice, and useful data to facilitate procedures when the system is eligible. Our goal is to help the client make an informed decision, without reducing the choice of device to the subsidy alone. Comfort, installation quality, and durability must remain at the heart of the project.
Why choose AirGreen for an HVAC installation in Verdun
This installation reflects our way of working: analyzing the building, adapting the solution, installing cleanly, and planning for future maintenance. We regularly work in complex environments in Montreal, Laval, Longueuil, on the North Shore, and on the South Shore. Urban projects often require more precision because space is limited and building constraints are more numerous.
In Verdun, buildings often have a history, a particular structure, and technical access points that are less straightforward than in newer constructions. Our team takes these realities into account. We don’t just look for the quickest place to install the device; we look for the location that will offer the best balance between performance, safety, noise, appearance, and ease of maintenance.
A successful GREE installation in a complex space
This installation of a GREE LIVO R32 wall-mounted heat pump in Verdun shows that a good result depends on a series of well-executed technical decisions. The choice of wall mounting, fixing on supports, respecting clearances, analyzing the low ceiling, and managing existing elements allowed the outdoor unit to be integrated into a space that required much more than a standard installation.
For homeowners considering adding a wall air conditioner, a heat pump, or a mini split system, this project highlights one essential thing: the chosen model matters, but the quality of the installation matters just as much. At AirGreen, we combine field expertise, technical rigor, and local knowledge to deliver durable, clean installations tailored to the reality of each building.