Installation of a Daikin R-32 wall-mounted heat pump in Villeray–Saint-Michel–Parc-Extension (Montreal)

Stable comfort and sleek finish in a Montreal apartment with high space constraints
At AirGreen , we help families in Greater Montreal choose the best HVAC system and install it for their needs. In this apartment in Villeray–Saint-Michel–Parc-Extension (Montreal) , we installed a latest-generation Daikin wall-mounted heat pump with R-32 refrigerant , selected for its fine modulation, quiet operation, and particularly discreet integration on a wall without obstacles.

Client objectives and project framework

Priorities expressed during the technical visit:

• Precise cooling in summer and efficient supplemental heating in spring and fall.

• Minimal noise level , compatible with an open living room.

• Neat aesthetics : no visible ducts, compact and neutral interior unit.

• Energy efficiency to reduce bills and aim for grant eligibility when criteria are met.

• Simplified HVAC maintenance to maintain performance over time.

Equipment selected: Daikin wall unit, recent R-32 range

The solution adopted is a Daikin wall-mounted heat pump (recent R-32 range), renowned for its temperature stability and longevity.
Major assets:

• Inverter technology : the machine precisely modulates its power in order to maintain the setpoint smoothly, limiting consumption peaks.

• Controlled acoustics on the evaporator side, ideal for Montreal apartments and plexes.

• Sleek design with smooth front hatch and discreet side control.

• Washable front-access filtration for quick maintenance routines.

Sizing: Our team performs a thermal load calculation (surface area, insulation, orientation, infiltration). In this type of apartment, a 9,000 to 12,000 BTU is often suitable for the main room, subject to on-site verification.

Interior installation: millimeter precision for homogeneous diffusion

The chosen wall provides a flat and clear surface , an essential condition for good air diffusion :

• Installation height in the upper part to promote natural stratification and the reach of the air jet over the living area.

• Clearances respected around the supply and return air facade to avoid short circuits.

• Flap orientation adjusted to sweep the comfort zone, without directing air towards the seats or the ceiling.

Refrigeration path and condensate management

We favor the shortest possible routes, both for performance and aesthetics:

• Direct wall crossing behind the indoor unit, limiting the length of the connections.

• Brazing under nitrogen , deep vacuum to the micron meter and documented leak test .

• Drainage with controlled slope towards the outside (gravity solution prioritized when the architecture allows it). If the configuration requires it, a silent and maintenance-friendly condensate pump is integrated.

Finishing and conformity

• Discreet cladding matching the wall, waterproof sealing of the drillings and anti-vibration supports.

• Dedicated power supply , adequate protection, clear marking on the panel.

• Compliance with the manufacturer's recommendations and the Code in force in Quebec for a durable and safe HVAC installation .

Commissioning: the AirGreen protocol

We validate each step before delivery:

1. Nitrogen pressurization and leak test.

2. High vacuum up to a guaranteed threshold, guaranteeing a dry circuit.

3. Opening of the fluid and successive tests in cold then in heating : delta T, intensity, liquid line/suction temperatures, verification of defrosting.

4. Comfort calibration : setpoint, fan speed, shutter oscillation, maintenance reminder.

A personalized user guide is given to the owner with our recommended settings for summer and the off-season.

Results obtained

• Temperature stability and quiet operation noticed from the first hours.

• Energy savings compared to a traditional on/off air conditioner thanks to modulation.

• Respected aesthetics : clean wall, no massive duct, perfectly horizontal integration.

• Improved indoor air quality through filtration and continuous low-speed circulation.

Best practices we apply in Montreal apartments

• Correct sizing : avoid oversizing which creates short cycles and cold zones.

• Thoughtful placement : aim for a clear air path; consider openings and furniture.

• Short refrigeration path : it maximizes efficiency and simplifies maintenance.

• Condensates : gravity if possible; otherwise, silent lifting pump with anti-odor siphon and access for cleaning.

• Electricity : dedicated circuit, compliant circuit breaker, marked cable.

Recommended HVAC maintenance

To maintain performance and warranty:

• Wash filters every 4–8 weeks depending on dust and usage.

• Annual AirGreen Inspection : evaporator/condenser cleaning, pressure/temperature check, drain and refrigeration insulation check.

• Around the outdoor condenser: maintain clearances (snow, leaves, dust) for efficient heat exchange.

Grants and eligibility criteria (Quebec)

Recent high-efficiency wall-mounted heat pumps may be eligible for support programs, subject to conditions: seasonal performance levels, resistance to extreme cold (down to -25°C/-30°C depending on the range), certification and installation by a qualified contractor . We support our clients in verifying eligibility and preparing files.

Why entrust your project to AirGreen — Montreal, Laval, Longueuil, North Shore, South Shore

• Daily local expertise in plexes, condos and houses in Greater Montreal .

• Superior finish : harmonized covers, clean seals, anti-vibration fixings.

• Complete support : from choosing the heat pump to commissioning , including HVAC maintenance and grant procedures.

• Transparency : construction site photos, commissioning reports, tailor-made advice.

Summary of the construction site at Villeray–Saint-Michel–Parc-Extension

This Daikin R-32 wall-mounted heat pump installation provides:

• Discreet and efficient four-season comfort .

• An exemplary aesthetic integration on a light wall, ideal for living rooms.

• Controlled operating costs and a technical basis compatible with eligibility requirements when the criteria of the chosen range are met.

Are you planning an HVAC installation in Montreal , Laval , Longueuil , on the North Shore or the South Shore ? Our team will guide you from sizing to commissioning , with the same rigor as on this Villeray–Saint-Michel–Parc-Extension project.

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Key technical points of the project

• Type : Inverter wall-mounted heat pump ( R-32 refrigerant).

• Interior layout : clear wall, optimized height, shutters oriented for longitudinal span.

• Route : direct wall crossing, short connections; controlled slope drain (gravity prioritized).

• Checks : nitrogen test, deep vacuum , delta T measurements and electrical checks.

• Maintenance : access to facade filters, annual HVAC maintenance reminder.

Directions for use

• Let the modulation work: avoid sudden variations in the setpoint.

• In summer, keep interior doors open for optimal air circulation .

• Schedule annual AirGreen maintenance to maintain performance, quietness and longevity.

AirGreen puts its know-how at the service of residents of Greater Montreal for sustainable , efficient and aesthetic installations.