Installation of a GREE FreeMatch R32 multi-zone heat pump in Rosemont–La Petite-Patrie

A neat multi-zone for a brick duplex: four-season comfort, preserved aesthetics

In this typical Rosemont–La Petite-Patrie duplex, we installed a GREE FreeMatch R32 multi-zone heat pump to cool and heat several rooms on two levels, without adding bulk to the facade. Our client's goal: to gain comfort while reducing their energy bills, with a sustainable, clean, and scalable HVAC system .

The context: a narrow backyard, a brick facade and rooms to be served upstairs

The site has the classic characteristics of Montreal plexes: narrow side driveway , red brick side facade, half-height windows, and a paver terrace/patio. We must:

• place the condenser away from traffic and snow removal;

• climb vertically for several meters to reach the interior heads located upstairs;

• maintain a clean visual line on the brick and avoid unnecessary penetrations.

Equipment choice: GREE FreeMatch R32, multi-zone flexibility

The FreeMatch R32 range can power 2 to 5 heads with a single external condenser. It's an ideal solution when you want to:

• air-condition several rooms independently (bedrooms, living room, office);

• limit clutter in the yard;

• optimize seasonal performance thanks to the inverter and R-32 refrigerant , more efficient than R-410A.

Depending on volumes and needs, we select R-32 wall heads (e.g. Livo/Clivia/Airy), all compatible with the FreeMatch platform, for quiet comfort and fine modulation in heating and air conditioning.

Condenser installation: clearances, anti-vibration and longevity

We install the condenser on a stable slab at the level of the foundation wall, with:

• anti-vibration pads to protect the masonry and reduce sound transmission;

• side and rear clearances in accordance with the manufacturer's recommendations;

• height and orientation designed to facilitate winter snow removal while avoiding air recirculation.

The lateral positioning, at the edge of the driveway, frees up the patio area and makes traffic safer . A nearby external disconnect switch ensures the electrical cutoff required by the code.

Management of refrigerated routes: clean and discreet brown vertical capping

One of the hallmarks of this achievement is the vertical rise of long refrigeration connections along the brick. To combine aesthetics and durability , we:

• we use a brown capping that matches the brick, laid perfectly plumb over the entire height;

• limit changes of direction to reduce pressure losses ;

• apply high density continuous insulation and butyl tape to junctions to prevent condensation;

• integrate the drains into the shelter and organize the drillings in mortar joints where possible, in order to preserve the integrity of the bricks.

This approach offers a clear visual reading : from the courtyard, the capping columns blend into the decor, while effectively protecting the lines.

Drilling, sealing and respecting the brick: our method

Each passage is drilled at a controlled angle , with a sleeve , fire-resistant foam where appropriate, and UV polyurethane sealant for a durable seal . We ensure:

• avoid excessive depointing ;

• create a controlled slope for the flow of condensates;

• protect the edges of the holes with countersunk edges to eliminate the risk of abrasion of the insulation.

Condensate management: gravity priority, pump only if necessary

On this project, the upper floors require a long vertical return . We prioritize a discreet gravity flow to the exterior. When the architecture requires it, we integrate a silent and easily accessible condensate pump for maintenance. The result: no drips on the brick or parasitic moisture near the patio.

Commissioning: HVAC rigor at every stage

Our commissioning protocol includes:

1. Flares and torques controlled at flare fittings, with R-32 compatible oil.

2. High pressure nitrogen leak test , followed by a drop test .

3. Deep vacuum draw until a stable micron level is reached.

4. Checking subcooling and superheating , adjusted to actual lengths.

5. Configuration of each zone (speeds, heating/air conditioning settings , orientation of shutters) to optimize air flows.

This rigor guarantees performance , quiet operation and longevity of the refrigeration circuit.

Results: multi-zone comfort, controlled bill

From the moment it is switched on, occupants benefit from:

• rapid and uniform cooling in the rooms served;

• stable heating during the off-seasons and in winter;

• reduced electricity consumption thanks to the inverter and room settings.

The multi-zone configuration allows an unoccupied room to be muted or lowered , improving overall efficiency . Noise perceived in the courtyard remains minimal thanks to the fan orientation and anti-vibration pads.

Aesthetics and maintenance: an installation designed to last

In addition to the brown capping that matches the brick, we have:

• numbered the connecting columns to facilitate any intervention;

• provided correct bend radii in high/low turns;

• positioned the condenser for winter access and the spring mop ;

• installed a defrosting tray and ensured free drainage under the appliance.

These details make annual HVAC maintenance easier: cleaning filters, visually inspecting insulation, checking drains and load.

Subsidies, compliance and choice of interior heads

FreeMatch-compatible R-32 wall-mounted heat pumps , when they achieve demanding seasonal efficiencies and suitable cold operating ranges , may be eligible for energy efficiency programs in Quebec. We support our customers in:

• verification of criteria by model and capacity;

• preparation of documents (serial numbers, detailed invoice, photos);

• the filing schedule to maximize the return.

Depending on the size of the rooms, we prefer 9,000 to 12,000 BTU heads in bedrooms and 12,000 to 18,000 BTU heads for an open-plan living room, with washable filters and quiet modes for the night.

Use and maintenance tips for the owner

To take full advantage of the installation:

• maintain stable instructions (avoid sudden variations);

• clean the head filters every 1 to 3 months depending on use;

• keep 1 m clearance in front of the condenser and clear snow in winter;

• schedule annual HVAC maintenance : electrical checks, pressures, calibrations, condition of insulation and drains.

Why entrust your multi-zone project to AirGreen?

Our team operates weekly in Montreal, Laval, Longueuil, on the North Shore and the South Shore . We provide:

• field expertise on brick plexes, typical of Rosemont, Villeray, HoMa;

• meticulous installation of long vertical connections, without compromising on aesthetics;

• precise sizing room by room and follow-up after installation.

This GREE FreeMatch R32 multi-zone in Rosemont–La Petite-Patrie illustrates our way of working: attention to detail , measurable performance and discreet integration that respects the architecture.

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AirGreen — Trusted HVAC partner for your multi-zone heat pumps in Greater Montreal.