Installation of a Gree Livo R32 wall-mounted heat pump in Rosemont–La Petite-Patrie

Four-season comfort perfectly integrated into a Montreal plex
We are working in a typical Rosemont–La Petite-Patrie apartment, with its period moldings and generous ceiling heights. The client's objective is clear: to efficiently air-condition the living area in the summer, provide additional heating during the off-season, and all without cluttering the space. We propose the installation of a Gree wall-mounted heat pump – Livo R32 range , a compact, quiet and energy-efficient solution, perfectly suited to residential buildings in Greater Montreal.

The client's context and needs

The main area includes a living room and a hallway, connected by an opening topped with a large doorframe. The priorities are:

• reduce temperature variations between rooms;

• maintain the interior aesthetics (no visible conduits, discreet crossings);

• optimize air diffusion above circulation areas to avoid drafts on occupants;

• stay within a controlled budget while aiming for low operating costs.

Why the Livo R32 range for this project?

The Gree Livo R32 is a safe bet for Montreal apartments:

• R-32 refrigerant, with low GWP and improved efficiency compared to R-410A;

• indoor units with very low noise level , ideal for living rooms and adjoining bedrooms;

• inverter modulation ensuring minimal consumption in mid-seasons;

• discreet design with adjustable display intensity, blending well with classic decors.

Expected result: consistent air conditioning in the summer and stable heating support in the spring and fall, all with a minimalist and clean HVAC installation .

Positioning the wall head: efficiency and discretion

We fix the inner head above a wide open passage . This positioning has three major advantages:

1. Controlled stratification : the blown air runs along the ceiling and is distributed naturally towards the living room and the hallway, which reduces temperature variations.

2. Optimal clearance : no obstruction by tall furniture, curtains or light fixtures.

3. Maintenance access : filter and housing accessible without moving furniture.

We respect the necessary service clearances above and around the unit for unrestricted airflow and simple future interventions.

Drilling and refrigeration route: short, direct, neat

The apartment's configuration allows for a single drilling on the right side of the wall head, directly to the outside , limiting the length of refrigeration connections and pressure loss. Key technical choices:

• wall crossing with a slight slope towards the outside for gravity drainage of condensates;

• waterproof socket and white cap matching the wall for a clean finish;

• high density insulation on the lines to prevent any parasitic condensation in the passage area;

• reduced total line length, synonymous with higher efficiency and optimized refrigerant charge.

Outside, the condenser is positioned to respect clearances, defrosting and air circulation, with an anti-vibration support adapted to the cladding and the location of the building.

Condensate management: gravity first

In this project, gravity evacuation is preferred. It guarantees:

• reliability (no electromechanical organs such as a pump);

• silent operation;

• reduced maintenance .
  The slope is calibrated from the crossing, and we protect the exit with a discreet end cap to prevent the return of air and insects.

Power supply and protections

We check the compliance of the dedicated line and the circuit breaker according to the chosen BTU capacity. The control and power wiring between units is routed discreetly , without compromising the interior aesthetics. Clear circuit marking facilitates any future maintenance.

Commissioning: rigor and traceability

Our standard procedure includes:

• nitrogen leak test and deep vacuum draw to recommended thresholds;

• validation of sub-discharges and blowing temperature at different speed levels;

• calibration of horizontal and vertical flaps to avoid direct blasts on passage areas;

• setting of modes (cooling, dehumidification, heating) and usual setpoints in °C for intuitive use.
  Each step is documented in the AirGreen customer file.

Comfort and performance achieved

From the moment it is started, the diffusion is homogeneous:

• stabilized temperature in the living room and hallway thanks to automatic sweeping;

• very low noise levels , perfectly compatible with everyday life;

• effective dehumidification in summer, particularly appreciated in older buildings where air infiltration can vary.
  The Livo R32 head excels at partial loads: consumption drops as the space approaches the setpoint, which protects the energy budget while extending the life of the components.

HVAC Maintenance: The Routine That Makes the Difference

To maintain efficiency and air quality:

• cleaning filters every 4 to 8 weeks during periods of intensive use;

• annual inspection by our technicians: heat exchange, condensate tray, fan, connections, tightening and reading of parameters;

• seasonal exterior check : clearance of grilles, condition of silent blocks, free flow.

Regular HVAC maintenance prevents overconsumption and surprises during a heatwave.

Tips for using a Montreal plex

• Maintain a stable setpoint ; avoid sudden variations to allow the inverter to work efficiently.

• In supplementary heating mode, leave the door to adjoining rooms ajar to promote balancing.

• Program a night mode to lower ventilation without sacrificing comfort.

• During pollen season, clean filters more often to support air quality.

Grants and Compliance

High-performance R-32 wall-mounted heat pumps may be eligible for certain grants depending on their power, declared efficiency, and low-temperature performance. We guide our clients in Montreal, Laval, Longueuil, the North Shore, and the South Shore in reading the criteria (certifications, technical data sheets) and preparing files when the equipment and building meet the requirements.

Aesthetic details and integration

In an interior with classic moldings, every finish counts:

• perfectly level installation for a clean visual line above the opening;

• white cladding matching the walls;

• Hidden cable management to maintain room harmony.
  The unit remains discreet , the display automatically dims according to the ambient light so as not to attract attention in the evening.

What we deliver, beyond the device

Choosing AirGreen means benefiting from comprehensive support :

1. Thermal analysis of the space and recommendation of suitable BTU capacity.

2. Layout plan taking into account airflow, structure and future maintenance.

3. Installation by certified technicians, with professional materials and tools.

4. Documented performance checks and training in use.

5. After-sales service and planned preventive maintenance for increased longevity.

Project Summary

• Type: wall-mounted heat pump ( mini-split ).

• Brand/range: Gree Livo R32 .

• Interior installation: above a passage , optimized sweep for living room and corridor.

• Refrigerated route: short straight wall crossing , insulated and capped, gravity evacuation .

• Objective achieved: 4-season comfort , preserved aesthetics, controlled operating costs .

For similar projects in Montreal , Laval , Longueuil , as well as on the North Shore and South Shore , our team designs a custom HVAC installation : fast, clean and calibrated for your building.