Precision cooling, rapid intervention, and perfect preservation in a critical Montreal scenario
When an extreme heatwave hit Montreal in the middle of July, a well-known Old Montreal restaurateur faced a serious emergency: the wine cellar of his fine dining establishment, housing over 800 rare bottles, was seeing temperatures dangerously rise. In less than two hours, AirGreen deployed a custom solution by installing a Fujitsu KZAH wall-mounted air conditioner, 9000 BTU, featuring Inverter technology and eco-friendly R-32 refrigerant, ensuring stable, precise cooling—even in the middle of a heatwave.
A high-stakes emergency in the heart of Old Montreal
It all began on a Tuesday morning at 9:42 a.m., when our service team received a call from a longtime client, the owner of a Michelin-starred restaurant. The central air conditioning system, shared with the rest of the commercial building, had just failed. However, the wine cellar, located in a semi-basement room, required a constant temperature of 13°C (55°F). With outdoor temperatures hitting 33°C (91°F) and the central HVAC system down, the room temperature climbed above 20°C (68°F) in under an hour—threatening bottles that individually were worth several thousand dollars.
A quick, precise, and energy-efficient wall-mounted cooling solution
At AirGreen, we understand the critical requirements of sensitive environments, whether it’s for server rooms, laboratories, or wine cellars. After an on-site evaluation at 10:15 a.m., we recommended and installed a Fujitsu KZAH 9000 BTU wall-mounted air conditioner, known for:
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Its exceptional temperature stability
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Its Inverter technology for continuous modulation
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Its ultra-quiet operation (ideal for a high-end venue)
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Its use of R-32 refrigerant, which is more environmentally friendly
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Its eligibility for LogisVert subsidies as part of high-efficiency system incentives
The installation was completed the same day, with the system fully operational before the evening dinner service.
Installation details: adaptation, discretion, and performance
The room’s configuration posed a notable challenge: 19th-century stone walls, tight space, and strict aesthetic requirements. Our technicians used a custom wall bracket, with PVC conduits hidden within the existing framing. The outdoor unit was installed on the rear roof using a lift, in compliance with Old Montreal’s heritage regulations.
System calibration allowed the temperature to stabilize at 12.8°C (55°F) in under 30 minutes. A connected temperature sensor was also installed, enabling the restaurateur to monitor real-time temperature changes remotely from his smartphone.
Client testimonial: when expertise builds trust
“Honestly, AirGreen saved tens of thousands of dollars in rare wine. They responded with impressive speed and precision. The installation is invisible, silent, and perfectly integrated.”
This type of intervention isn’t something you improvise. It requires in-depth knowledge of wall-mounted HVAC systems, efficient logistics, and above all, the ability to understand our clients’ business-specific needs.
Why AirGreen is the trusted choice for temperature-sensitive environments
For years, we’ve worked in high-sensitivity environments, where climate control is not a luxury but an absolute necessity: clinics, data centers, food retailers, museum institutions, and more.
Our technicians are trained to work in complex settings, with close attention to details like acoustics, aesthetics, energy performance, and regulatory compliance.
We always deliver solutions that are:
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Custom-designed, tailored to the specific location
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Energy-efficient, to reduce operating costs
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Scalable, allowing for future upgrades
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Quick to install, with minimal disruption to operations
Tips for businesses that rely on precise temperature control
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Invest in a standalone system, especially if you share HVAC with other units
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Choose reputable brands like Fujitsu, Gree, LG, Daikin
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Opt for models using R-32 or R-454B refrigerant
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Install smart sensors for remote monitoring
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Schedule biannual maintenance, including cleaning, calibration, and inspection
AirGreen expertise recognized throughout Greater Montreal
From Longueuil to Laval, from the North Shore to the South Shore, we install hundreds of wall-mounted air conditioners every year in a wide variety of settings: residential homes, condos, commercial spaces, offices, studios, professional kitchens. Our reputation is built on our precision, attentiveness, and our ability to deliver flawless HVAC installations, even in the most urgent cases.
Do you have a temperature-sensitive environment to protect? A room, facility, or operation where stable climate control is critical?
Call AirGreen today. Our experts travel throughout Montreal, Laval, Longueuil, the North Shore, and the South Shore, to evaluate, advise, and install the perfect wall-mounted HVAC solution for your needs.