In a loft-style condo in the Southwest (exposed brick walls, modern finishes, and low ceilings with recessed lighting), we provided a complete Haxxair wall-mounted heat pump service . This type of environment is very common in Montreal: open spaces, a single indoor unit that does most of the work, and a clear client request— stable, quiet comfort with good performance even when the air becomes drier in winter or more humid in summer.
The photo shows a wall-mounted unit (mini-split) installed high up, a typical position to optimize air distribution in the room. The installation is clean and discreet: the unit is centered on a clear wall, at a reasonable distance from the ceiling, which helps prevent excessively rapid air recirculation at the return vent.
In this type of home, a simple "quick" maintenance isn't enough. A wall-mounted heat pump gradually accumulates fine dust, microparticles, and sometimes grease deposits (open-concept kitchen), which eventually reduces performance, increases noise, and causes odors. Our goal: to restore the unit to optimal condition , prevent breakdowns, and extend the system's lifespan.
A Haxxair wall-mounted heat pump adapted to the Montreal reality
Even when the unit is “still” working, a mini-split can lose efficiency without any obvious symptoms. In a condo, the difference often translates to:
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a sensation of drafts or hot/cold spots;
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a more frequent cycle (the machine starts/stops more often);
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a noise that is more noticeable when starting or at low speed;
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Consumption is increasing without us realizing it.
Here, the configuration (compact indoor unit, installed high on the wall, direct orientation towards the room) corresponds to a new generation Haxxair wall-mounted heat pump , consistent with a series designed for residential heating/cooling.
Model (consistent with the brand) : Haxxair – Nordic R32 Series, 12,000 BTU (condo/loft format) .
When the exact model is not legible on the interior facade, we rely on the configuration, the size of the unit and the type of use (open area) to remain realistic and consistent.
What we did on site: real service, not just a "quick glance"
At AirGreen, effective wall-mounted heat pump service follows a logical process: inspection, targeted cleaning, mechanical/electrical checks, and then performance validation. In the Southwest, units often work hard in the summer due to large windows and heat buildup in brick walls—hence the importance of proper maintenance.
1) Visual inspection and control of the installation
Before even opening the unit, we check:
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the alignment and fixing of the wall head;
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the general condition of the hood, flaps and visible fins;
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the presence of signs of moisture (an indication of a partially blocked drain);
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the quality of air circulation around the unit (clearance at the ceiling and on the sides).
In this condo, the machine is well positioned: this is a positive point for air diffusion and for limiting vibrations.
2) Cleaning of the filters and the air intake area
The filters are the first line of defense. When they become clogged:
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the airflow decreases;
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the heat exchanger is working harder;
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Comfort becomes less uniform.
We carried out a complete cleaning of the filters , followed by a thorough dusting of the return surfaces. This simple action, performed at the right pace, greatly helps to maintain efficiency.
3) Cleaning of the heat exchanger (coil) and fins
The internal coil is the heart of the performance. If it is covered with fine dust, the heat exchange deteriorates: the machine has to compensate, and this is reflected in the bill and in comfort.
We perform a suitable cleaning (without damaging the fins) to restore:
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improved heat transfer;
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improved dehumidification in air conditioning mode;
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more stable and quieter operation.
4) Check and clean the condensate tray and drain
In many condos, the condensate drain is the #1 cause of damage: a small blockage can lead to drips, odors, or an overflow.
Our intervention includes:
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inspection of the bin;
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validation of the flow;
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Preventive cleaning of the pipes if necessary.
Objective: zero surprises , especially in a finished environment (walls, floors, furniture).
5) Fan (wheel) and blower flap control
When the wheel (turbine) accumulates deposits, we observe:
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a decrease in flow rate;
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a duller noise;
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sometimes smells.
We check the accessible internal condition, the movement of the damper, and the uniformity of the airflow. In a loft, noise is more noticeable (open spaces, hard surfaces), so this point is very important.
6) Performance controls: temperatures, modes, stability
After the interview, the performance is validated in concrete terms:
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blowing temperature;
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reaction to changes in instructions;
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speed operation;
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stability of heating/cooling mode.
This is where we confirm that the service has a real impact, and where we detect the warning signs (sensors, calibration, abnormal behavior).
Why this service is particularly important in the Southwest
The Southwest (Griffintown, Saint-Henri, Little Burgundy) often combines:
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well-insulated condos, but with significant solar gains;
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open kitchens (greasy particles in the air);
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summer humidity and dry winter air;
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high rate of use (the machine becomes “the” main system).
A properly maintained Haxxair wall-mounted heat pump :
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heats more efficiently when winter sets in;
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dehumidifies better during hot and humid periods;
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maintains a more uniform comfort;
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reduces the risk of avoidable breakdowns (drain, airflow, fouling).
Signs that your Haxxair heat pump should be serviced (or diagnosed)
Without being alarmist, here are some common indicators:
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the part no longer reaches the setpoint as quickly;
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The machine is blowing, but “less strongly” than before;
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odors at startup (humidity, dust);
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different or more present noise;
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traces of water, drops, or moisture under the unit;
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discomfort in a specific area of the room.
In these cases, maintenance may suffice; sometimes, a more thorough diagnosis is necessary. Our approach is to first correct the simple issues (airflow, cleaning, drainage), then assess the rest.
Our AirGreen approach: clean, methodical service, designed to last
When providing services in a condo, the service must be:
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clean (surface protection, water management, impeccable restoration);
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methodical (no random gestures);
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performance-oriented (validation after intervention).
That is exactly what we have applied here, so that this Haxxair wall-mounted heat pump can regain optimal, quiet and efficient operation — for both air conditioning and heating .