Installation of a Haxxair wall-mounted heat pump in Griffintown (Le Sud-Ouest)

A targeted comfort upgrade in a Montreal condo: quiet, efficient and designed for everyday use

Project context and comfort objectives

At AirGreen , we were approached by a condo owner in Griffintown who wanted to stabilize the temperature of his open space while reducing his energy costs in both summer and off-season. We offered a Haxxair wall-mounted heat pump , a compact solution that was adaptable to the constraints of a modern building. The main space has a large window dressed with thick curtains, typical of urban condos in central Montreal : it was therefore necessary to optimize the airflow near the window coverings, preserve the aesthetics of the wall, and maintain a minimal noise level.

Why a Haxxair wall-mounted heat pump in a condo?

• High efficiency in air conditioning mode and supplementary heating in mid-season.

• Discreet interior module, suitable for low ceilings and light walls.

• Precise temperature control with integrated display and motorized shutter.

• Easy maintenance: washable filters accessible from the front, ideal for regular HVAC maintenance by the occupant between our annual visits.

We validate, with a demonstration, the quality of the cold blowing. At the start of the verification, the display shows a set point of 16 °C , and an instant reading with an infrared thermometer measures approximately 13.6 °C at the blowing. This differential confirms good heat extraction from the ambient air and reassures the customer about the real performance of their equipment in condo conditions.

Preparation: route study and integration into the building

Before any HVAC installation , our team carries out a careful survey:

• Locate the exterior wall aligned behind the wall head to minimize the length of the refrigeration connections.

• Check for interior obstructions (curtain rods, wall art, soffit corners). We choose a high installation, at a safe distance from the curtains, to avoid any air recirculation and ensure effective cross-sweeping.

• Condensate drainage path analysis. In a condo, the priority remains gravity flow through a direct wall crossing and a slight slope. We confirm the feasibility; thus, no condensate pump, therefore less maintenance and less noise.

• Validation of the dedicated power supply and the required circuit breaker, according to the nameplate of the supplied device.

Step-by-step implementation

1. Controlled drilling of the light load-bearing wall and installation of an insulated wall pass-through.

2. Installation of the plate and precise leveling to ensure the evacuation of condensates.

3. Haxxair interior head attachment , seating tests and distance control: lateral curtain clearance and free access to the IR sensor and filter hatch.

4. Passage of refrigeration connections (insulated copper) and the communication cable. A discreet, light-colored exterior capping ensures UV protection and the aesthetics of the facade.

5. Brazing and vacuuming : we achieve a deep and stable vacuum, an essential condition for compressor durability and seasonal efficiency.

6. Pressurization and leak testing .

7. Start-up and balancing : measurement of delta-T on blowing (reading at ~13.6°C at the register, higher starting environment), adjustment of ventilation parameters and orientation of the flaps.

Aesthetic and acoustic integration

The unit is carefully centered on the wall above the mural. We take into account the passage of curtains: in operation, the shutter directs the airflow towards the open area without hitting the textile. At nominal speed, the perceived noise remains very contained thanks to the balanced fan and the internal insulation of the walls of the Haxxair wall head. In a condo where silence is a major criterion, this point makes all the difference on a daily basis.

Results: measurable comfort and precise control

• Even cooling of the main room, hallway and dining area thanks to horizontal sweeping.

• Fast response to the setpoint: the temperature drops steadily then stabilizes without short cycles.

• Local control by remote control and discreet display on the front: readable even from a distance, practical for confirming the instruction at a glance.

• Controlled consumption : compressor modulation (inverter) limits electrical peaks and withstands prolonged use during heat waves in Montreal , Laval , Longueuil , North Shore and South Shore .

Maintenance recommended by AirGreen

Preventive maintenance ensures longevity and performance:

• Every 4 to 6 weeks during periods of heavy use: rinse the filters.

• Annually : complete inspection by our technicians (electrical tightening, leak test, exchanger cleaning, condensate test).

• Best practices : keep clearance from the top of the unit and sides, do not obstruct the sensor with curtains or decorative objects, use automatic and dehumidification modes according to indoor humidity.

Special features in co-ownership

In buildings managed by a union, we coordinate:

• Permission to cross the exterior air barrier and facade rules.

• The external support (brackets or platform) in compliance with the architectural charter.

• The hours of intervention and management of common areas to move the equipment without disturbing the neighbors.

Thanks to this preparation, the installation takes place in a single planned visit, with a clean site and immediate return to use.

Choosing the Right Power (BTU) for an Urban Condo

Without oversizing, we estimate the load taking into account:

• of the open surface,

• from the sunlight on the windows,

• of the waterproofing and the level of insulation,

• of actual occupancy and devices generating internal gains.
  This fine-tuning avoids short cycles, improves comfort and reliability . Our team adjusts the Haxxair selection to the housing profile and, if necessary, suggests adding a second head for a remote room ( MultiZone heat pump configuration possible depending on the building).

Grants and Compliance

Programs evolve and depend on certified performance and equipment type. For a recent range wall-mounted heat pump , eligibility may be considered when the efficiency and low temperature performance criteria are met. We systematically verify these parameters during the submission and provide the required documents. Our advisors support clients in Montreal , Laval , Longueuil , North Shore and South Shore to maximize available assistance.

Practical usage tips

• During a heatwave, leave early in the day in wall-mounted air conditioning mode and maintain a stable setting.

• Use the dehumidification mode when the air is heavy; the feeling improves without excessively lowering the setting.

• Close the blinds during the sunniest hours to limit solar gain.

• Schedule an HVAC maintenance reminder to maintain performance season after season.

What we deliver at the end of an AirGreen project

• A clean, aligned and discreet installation, ready to use.

• Demonstration of essential functions and provision of usage advice.

• A commissioning report with readings (delta-T, intensities, condensate drainage).

• Accessible after-sales service with quick appointments throughout Greater Montreal .

In short

In this Griffintown condo, the Haxxair wall-mounted heat pump provides rapid cooling, simple control, and seamless integration into the decor. The 13.6°C blower temperature, combined with precise positioning to avoid curtains, confirms a solution perfectly suited to contemporary urban living. For a similar project—whether you're in Montreal , Laval , Longueuil , on the North Shore , or the South Shore —our team designs and installs an efficient, sustainable solution designed for your space.