Installation d’une Gree (gamme R-32) thermopompe murale à Le Sud-Ouest (Griffintown)
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Installation of a Gree (R-32 range) wall-mounted heat pump in Le Sud-Ouest (Griffintown)

A recessed wall head above a closet: precise comfort and minimalist integration in a new condo

At AirGreen , we are modernizing the comfort of a bright condo in Griffintown , in the Southwest . The owner wanted a discreet , temperature-stable, and economical solution year-round. We installed a recent Gree R-32 wall-mounted heat pump , perfectly suited to Montreal condominiums where aesthetics and silence are as important as performance. The interior head is located in a recess above a closet : a positioning that frees up space while ensuring even distribution to the bedroom and hallway.

Why this choice of installation above the closet is a winner

  1. Maximum discretion : the unit blends into the niche; no conflict with furniture or curtains.

  2. Ideal height : rapid temperature rise/cooling thanks to effective destratification .

  3. Directed flow : the blowing passes under the lintel and goes towards the living area; the return remains clear.

  4. Easy maintenance : front access for filters and electronic panel; no footprint.

We calibrate the vanes for a slightly downward and offset jet, avoiding the air currents perceived when standing in front of the cupboard.

Technical details of the HVAC installation

Support, anchors and clearances

Even in a niche, a wall head must breathe . We respect the recommended clearances : buffer space above and on the sides to allow air intake and service. The plate is anchored in the rigid structure; we control the flatness so that the condensate tray maintains its drainage slope. Vibrations are dampened by suitable pads; no box noise is transmitted to the gypsum.

Crossing, connections and capping

The crossing is made behind the unit, with a clean drilling sloping outwards. The insulated refrigerant lines , the gravity drain and the communication cable run in a discreet white capping to the outdoor unit. On the facade, the sections are segmented to follow the architectural lines and minimize the visual impact.

In condos where gravity is not possible, we integrate a silent mini-pump with anti-vibration and anti-siphon . Here, the configuration allows gravity flow , the most reliable and silent solution.

Outdoor unit and Montreal climate constraints

The Gree compressor is installed on anti-vibration brackets clear of the ground, making it convenient for snow, de-icing salts, and maintenance. The location is outside the fall zone (roof/balcony), and respects the clearances for winter defrosting. Calibrated silent blocks eliminate solid-borne transmissions; the pipe passage is sealed and protected against infiltration.

Dedicated power supply

A dedicated power supply from the condo panel powers the entire system, protected by a compliant circuit breaker. We clearly identify the circuit and verify the polarity and tightening torques on the terminal blocks. Everything complies with current standards and Gree recommendations.

Sizing and performance

For a master bedroom opening onto a hallway, the 9,000 to 12,000 BTU range covers most air conditioning and mid-season heating needs. Gree's recent R-32 range is distinguished by:

  • fine inverter modulation , avoiding short cycles;

  • high seasonal efficiency (SEER2/HSPF2 depending on capacity);

  • discreet operation – ideal for co-ownership;

  • R-32 compatibility , new generation refrigerant with low GWP .

We carry out a load calculation taking into account the surface area, orientation, glazing, infiltration level and solar nuisance typical of Griffintown's glass towers. The result: a fair capacity, synonymous with stable comfort and reduced consumption.

Commissioning: what we check

  • High vacuum and leak testing of connections.

  • Superheating and subcooling within tolerances.

  • Drain slope and absence of high point; extended flow test.

  • Balanced blowing to cover the sleeping area without drafts.

  • Noise level in minimum and auto mode.

  • Weekly programming and Wi-Fi (if module present) to optimize periods of absence.

Result for the customer

  • Consistent comfort in the bedroom and adjoining hallway.

  • Silence : no structural hum or formwork vibration.

  • Aesthetics : the built-in unit remains almost invisible from the traffic axis.

  • Controlled operating costs thanks to modulation and R-32 refrigerant .

Grants and Eligibility

High-efficiency , cold-resistant wall-mounted heat pumps may be eligible for programs available in Quebec. We prepare the file (technical specifications, proof of installation, photos, detailed invoice) and assist our clients in Montreal, Laval, Longueuil, the North Shore, and the South Shore to secure grants when they apply to the chosen configuration.

Best practices: getting the most out of a wall-mounted heat pump in a condo

  • Filters : Service every 4–8 weeks; a clean filter improves performance and quietness .

  • Stable setpoint : let the inverter work; avoid sudden variations.

  • Dry mode in summer on hot days: better comfort without overcooling.

  • Interior doors ajar** to encourage diffusion towards the corridor.

  • Annual HVAC maintenance **: evaporator cleaning, electrical check, drain and connection insulation check.

Pitfalls avoided by our team

  1. Niches too tight : we keep some clearance for air intake and service.

  2. Thermal bridges : careful interior/exterior sealing and weather protection.

  3. Hidden siphons on the drain: continuous slope checked when filling with water.

  4. Structural vibrations : sized brackets and silent blocks, controlled torques.

  5. Direct radiation on the bed : programmed fin orientation, gentle speed at night.

Scalability and multi-zone

The current layout covers the bedroom. If the owner wishes to serve the living room later, we have planned:

  • a path reserved for future connections;

  • the location of the outdoor unit compatible with a clean grouping;

  • the electrical capacity available at the panel.

This anticipation limits work and reduces costs if one day a MultiZone system is considered.

Why the Gree R-32 range is suitable for Griffintown

  • Simple design that blends in with the white finishes of the new condos.

  • High efficiency and useful heating at low temperatures, practical in mid-season.

  • Accessories available locally (slabs, covers, cards, filters).

  • Connectivity possible for precise management of office/teleworking schedules.


In short : this HVAC installation of a Gree wall-mounted heat pump ( R-32 range) in Griffintown combines minimalist integration , silence and performance . The recessed installation above the closet, the gravity drain , the clean capping and the anti-vibration brackets guarantee a durable and efficient solution. Our team operates throughout Montreal, Laval, Longueuil, North Shore, South Shore for careful projects, ready for grants when the configuration is eligible.

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