Installation of a Mitsubishi wall-mounted heat pump in Côte-des-Neiges–Notre-Dame-de-Grâce

A heat pump installation adapted to Montreal realities

At AirGreen , we recently installed a Mitsubishi wall-mounted heat pump in a residential building in the Côte-des-Neiges–Notre-Dame-de-Grâce neighborhood of Montreal. The client wanted to replace their old air conditioner with a more efficient system that could provide both heating in the winter and cooling in the summer , while being quiet, efficient, and durable . Our recommendation: a Mitsubishi Electric model from the Hyper Heat wall-mounted series, known for its reliability and performance in Quebec climates.

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Project analysis: space constraints and balcony installation

The installation presented a unique challenge: the outdoor compressor had to be mounted on a narrow balcony on the rear facade of an apartment building. This type of configuration is common in Montreal boroughs, where brick buildings do not always have sufficient floor space for HVAC units.

Our technicians have therefore designed a tailor-made solution:

• Reinforced wall bracket in galvanized steel , fixed on expansion anchors.

• Vibration absorbers installed under the unit to reduce resonance noise.

• Precise routing of refrigeration lines and condensate drain , protected in an insulated sheath for an aesthetic finish that complies with standards.

• Electrical connection in a CSA certified waterproof box , guaranteeing the safety and compliance of the installation.

Thanks to this configuration, the unit remains perfectly stable, secure and easy to maintain, while freeing up floor space on the balcony.

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Model choice: Mitsubishi Hyper Heat, the Quebec cold champion

The client wanted a system that could efficiently heat down to -25°C , without relying on backup heating. So we suggested the Mitsubishi MUZ-FH12NA , a 12,000 BTU wall-mounted heat pump, renowned for its ability to maintain excellent energy efficiency even in the dead of winter.

Its main characteristics:

• Hyper Heat Technology : stable performance down to -25°C.

• Variable speed inverter compressor for precise temperature control.

• Minimal noise level (as low as 19 dB indoors).

• Exceptional energy efficiency (SEER greater than 20, HSPF greater than 10).

• Intelligent defrost function for continuous operation without heat loss.

This Mitsubishi model is an ideal choice for Montreal apartments and duplexes, combining performance, discretion and durability.

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Installation Steps

1. Evaluation and preparation of the site

Before starting work, our team checked:

• Brick wall strength (pull-out test for anchors).

• Access to a dedicated 240V electrical outlet.

• The optimal location of the interior wall head (free air flow and maximum comfort).

2. Installing the inner head

The wall-mounted header was fixed in the living room, in a central location allowing for even air distribution throughout the space. The through-drilling was carried out precisely, with a controlled inclination for condensate drainage . All ducts were sealed and thermally insulated.

3. Fixing and installing the compressor

On the balcony, the galvanized steel wall bracket was carefully secured. We installed anti-vibration pads under the compressor feet to prevent any sound transmission to the building structure.

4. Refrigeration connection and leak test

The insulated copper pipes were evacuated to remove any moisture. A nitrogen pressure test then confirmed the absence of leaks. After validation, the refrigerant charge was adjusted according to Mitsubishi specifications.

5. Commissioning and calibration

Once the system is running, we have:

• Measured the blowing temperature .

• Checked the power consumption .

• Adjusted the fan speed and airflow direction .

• Configured the wall remote with customer preferences.

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Result: efficiency, silence and comfort

Upon startup, the customer noticed a gentle, steady flow of air , with no perceptible noise. The unit responded quickly to temperature fluctuations, maintaining consistent comfort throughout the rooms. In heating mode, the Mitsubishi heat pump demonstrated an impressive ability to maintain a stable temperature despite the severe cold outside.

Our final test revealed:

• Blowing temperature: 47°C in heating mode.

• Reduced consumption: less than 800 W in normal operation.

• Exterior noise level: barely 45 dB , imperceptible from inside.

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AirGreen Maintenance and Advice

Before leaving the premises, we shared some maintenance tips with the client:

• Clean air filters every 4 to 6 weeks.

• Clear the area around the compressor in winter to prevent snow accumulation.

• Schedule an annual AirGreen inspection to maintain energy efficiency and manufacturer's warranty.

These simple actions ensure increased longevity and consistent performance, year after year.

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Why choose AirGreen for your heat pump in Montreal?

Our expertise is based on hundreds of successful installations in all boroughs of Montreal and on the North and South Shores. Each project is handled with a personalized approach, compliant with the electrical, mechanical, and aesthetic standards of the HVAC industry.

AirGreen means peace of mind , from the first diagnosis to commissioning:

• Technicians certified and trained by manufacturers (including Mitsubishi Electric).

• Strict compliance with RBQ and CSA standards.

• Professional calibration and leak detection equipment.

• Fast and attentive after-sales service.

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Installation Summary

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The final word

This Mitsubishi wall-mounted heat pump installation demonstrates how thoughtful design and careful execution can transform the comfort of a Montreal space, even in complex configurations like narrow balconies.
With AirGreen , every installation is synonymous with performance, reliability and technical elegance .