A real-life case that highlights the importance of professional HVAC installation in commercial settings
In the world of commercial heating, every detail matters. At AirGreen, we were urgently called by a business in Longueuil facing a critical situation: a central commercial heat pump, installed just a few months earlier by an unqualified contractor, had broken down. The issue? A major installation error that could have been avoided. This case gave us the opportunity not only to demonstrate our expertise, but also to remind everyone of the importance of a meticulous approach in the commercial HVAC industry.
A poorly installed central heat pump: a nightmare for the company
The client, an SME located in an industrial sector of Longueuil, had a 5-ton Lennox central heat pump installed, meant to heat and cool their offices and production area. Unfortunately, shortly after the first cold season, the unit began to make troubling noises and soon completely shut down.
Our team’s initial inspection revealed an alarming situation: the condensate drainage system had been poorly routed, causing water to backflow into the blower motor, which eventually burned out. Even worse, the return air ducts were improperly sized, severely restricting the airflow needed for the system to run properly.
The consequences of a bad installation in a commercial context
This situation had immediate consequences for the company:
-
Complete loss of heating and cooling, affecting employee productivity.
-
Excessive humidity in the production area, putting sensitive equipment at risk.
-
Financial loss estimated at over $12,000, including repairs, lost productivity, and a new installation.
This case proves that a simple installation mistake in HVAC can quickly escalate into a full-blown crisis.
Our intervention: precision, process, and expertise in commercial heating
At AirGreen, our mission was clear: restore the system permanently, while ensuring no recurrence. After presenting a detailed diagnostic, we recommended the complete removal of the existing unit, followed by the installation of a new Goodman R-32 central heat pump – a reliable, efficient model perfectly suited for this type of commercial environment.
Steps of our intervention:
-
Complete removal of the faulty installation, including the outdoor unit, undersized ducts, and risky electrical components.
-
Design of a new ductwork layout, with optimized pressure balancing for both offices and the production room.
-
Installation of the Goodman R-32 central heat pump, featuring a 60,000 BTU capacity, a SEER2 rating of 17, and high HSPF performance.
-
Redesigned drainage system, with safety trap, service access points, and controlled slope.
-
Commissioning with full validation of airflow rates, static pressure, and supply temperatures.
Why the Goodman R-32 central heat pump is ideal for businesses in Longueuil
The choice of the Goodman R-32 wasn’t random. This model stands out thanks to:
-
R-32 refrigerant, known for its energy efficiency and low environmental impact.
-
Scroll inverter compressor, ensuring quiet operation that adjusts to the building’s actual needs.
-
Compatibility with smart thermostats, making remote energy management simple.
-
Eligibility for LogisVert grants on the South Shore, up to $2,400 – direct savings for the business.
A successful transformation: back to normal with improved performance
After our intervention, the client saw a dramatic improvement:
-
Stable and even thermal comfort across all spaces.
-
25% reduction in energy consumption compared to the previous system.
-
Zero breakdowns or issues after 6 months of continuous operation.
This project, although born from someone else’s mistake, allowed AirGreen to demonstrate its expertise in commercial heating in Longueuil and to establish a lasting trust-based relationship with this client.
Lessons learned: how to avoid these HVAC mistakes in commercial buildings
For any business on the South Shore, in Montréal, or on the North Shore, this story serves as a clear reminder: it is essential to hire certified specialists for any HVAC project.
Here are some practical tips from our experience:
-
Check your contractor’s certifications, including RBQ licenses and refrigerant training (R-32, R-410A, etc.).
-
Request a precise thermal load calculation, based on your building’s blueprints and business activities.
-
Demand a preventive maintenance plan, to avoid expensive surprises.
-
Avoid deals that seem too good to be true. A low price can hide a sloppy job.
AirGreen: your trusted partner for commercial heating in Longueuil and beyond
With hundreds of completed projects in a wide range of sectors (offices, retail, restaurants, workshops), we master all the nuances of commercial HVAC. Our teams respond quickly across Montréal, Laval, Longueuil, the North Shore, and the South Shore, with a focus on performance, durability, and meeting deadlines.
Whether you’re building, renovating, or facing an emergency, trust AirGreen for reliable, technical, and customized service.
