A Commercial HVAC Operation in Laval Under Pressure: Efficiency, Coordination, and Expertise
In the field of commercial HVAC in Laval, some interventions stand out due to their urgency and logistical complexity. At AirGreen, we are frequently called upon to act quickly, but the call we received last August on a Monday morning tested our entire organization. It wasn’t for an individual business, but rather an entire shopping center, where the central air conditioning system failed following a critical malfunction of the main condenser.
During a heatwave, with outside temperatures reaching 33°C, complaints were already piling up with the mall’s management: unhappy customers, uncomfortable employees, potential health risks for food areas, and threats of temporary closure for several stores. Our mandate was clear: restore a functional air conditioning system in less than 8 hours, or see the site’s activities come to a halt.
Rapid Diagnosis and Organization of a Cascade Operation
On-Site Inspection and Malfunction Findings
Upon our arrival in Laval, our team, consisting of two certified central air conditioning technicians and a project manager, conducted a full inspection of the existing HVAC system. The result: the Lennox 10-Ton condenser, model MCB060, running on R-410A refrigerant, had a major leak in the liquid line due to premature wear of the brazed connections. The pressure in the system had dropped to critical levels, making cooling impossible.
Deployment of a Two-Part Strategy
Faced with the situation, we immediately activated our rapid-response protocol:
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Replacement of the defective condenser with a new unit of the same model, available from our North Shore warehouse.
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Installation of three temporary commercial heat pumps (model Goodman 60,000 BTU | R-32), distributed in the most critical areas: the food court, pharmacy, and administrative offices.
Technical Details of AirGreen’s Intervention
Specifications of the Replaced Main Unit
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Model: Lennox MCB060
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Capacity: 10 Tons
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Refrigerant: R-410A
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SEER: 14
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Previous Installation: 2014
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Replacement Duration: 3h45 including fluid evacuation and brazing of new lines
Temporary Units Deployed
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3 Goodman 60,000 BTU units
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Eco-friendly refrigerant: R-32
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Power Supply: 240V three-phase
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Installation Time: 2h30
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Thermal Stabilization in under 90 minutes
Team Mobilized
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2 installation technicians
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1 certified refrigeration technician
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1 project supervisor
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1 crane truck for condenser handling
Results Achieved: Air Conditioning Restored, Commercial Activities Saved
Return to Normal in Under 6 Hours
Less than 6 hours after our initial presence on-site, air conditioning was fully restored throughout the building. The new Lennox condenser was operating optimally, while the temporary units supported high-traffic areas during the final pressurization stages.
Testimonial from the Mall’s Management
“We never thought it would be possible to restore everything in such a short time. AirGreen was professional, organized, and completely transparent from start to finish.”
This intervention proves our ability to respond quickly to major HVAC challenges in demanding commercial settings, while ensuring an effective temporary solution and a permanent replacement that meets the highest standards.
Why Commercial Property Managers Choose AirGreen
Proven Expertise in Commercial HVAC in Laval and Beyond
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Fast responses in high-volume buildings (shopping centers, office towers, clinics)
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Stock available at all times in our regional warehouses
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Combined temporary and permanent solutions
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Certified technicians for systems from 10 to 50 tons
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Partnerships with major brands such as Lennox, Goodman, Bosch, Zephyr
Practical Tips to Avoid Critical Failures
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Plan an annual complete inspection of your HVAC system
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Replace brazed joints every 7 to 10 years
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Monitor refrigerant pressure in real-time with connected sensors
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Work with a company like AirGreen, capable of intervening on the same day, even for large commercial installations
AirGreen: More Than Just an Installer, a Trusted Partner
This project demonstrates what sets us apart: our ability to solve complex problems, mobilize a full team in record time, and ensure the continuity of our clients' commercial activities in Laval, Montréal, Longueuil, both the South and North Shores.