Carnet de bord : une journée dans la vie d’un technicien AirGreen en entretien de thermopompes multizones
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Logbook: A Day in the Life of an AirGreen Technician During a Multi-Zone Heat Pump Maintenance Call

A daily routine built around performance and the comfort of your HVAC systems

At AirGreen, every multi-zone heat pump maintenance visit is far more than just a technical appointment. It’s an opportunity to extend the lifespan of your equipment, maximize its energy efficiency, and ensure year-round comfort for your family or tenants. Our specialized technicians travel daily across Montreal, Laval, Longueuil, the North Shore, and the South Shore to deliver meticulous, personalized maintenance services that meet the highest standards in the HVAC industry.

First step: proactive daily scheduling

Each morning, our technicians receive their daily route through our centralized system. The goal is clear: optimize travel while maintaining flexibility to respond to any emergencies.

Today, our technician Samuel is heading out for three multi-zone heat pump maintenance calls: the first in Boucherville, the second in Boisbriand, and the final one in Outremont. Each system was installed by AirGreen within the past two to five years, and all customers have signed up for our recommended annual maintenance program.

Stop 1 – Maintenance of a FUJITSU multi-zone heat pump in Boucherville

Upon arrival, Samuel takes time to greet the customer and ask a few essential questions:

  • Have you noticed any drop in performance?

  • Any unusual noises coming from the unit?

  • Has it been over a year since the last maintenance?

The FUJITSU AOU36RLXFZ multi-zone heat pump, a 36,000 BTU model, serves three wall-mounted units in the living room, master bedroom, and basement. Samuel proceeds with:

  • A visual inspection of all indoor and outdoor units.

  • Partial disassembly of covers for full access to the coils.

  • High-pressure coil cleaning, crucial for effective heat transfer.

  • Checking the condensate drain.

  • Cleaning the filters and placing them back properly.

  • Refrigerant pressure analysis using R-410A-compatible gauges.

Advice shared with the customer and key findings

The customer had noticed that the basement head unit was blowing weaker air. Samuel identified a minor clog on the blower fan, which he cleaned on-site. He also adjusted the infrared remote’s orientation to avoid communication issues. Performance noticeably improved after the cleaning.

Stop 2 – Full checkup of a GREE multi-zone system in Boisbriand

Second appointment: a 48,000 BTU GREE MULTI-EXTREME heat pump, installed in a duplex to serve two separate units. These setups require additional coordination since not all indoor units are accessible to one occupant.

Samuel coordinated with both tenants to set up a convenient schedule. Each wall-mounted unit was deep-cleaned. The outdoor unit was also inspected, and Samuel cleared out fallen leaves partially blocking the fan grille.

He took the opportunity to provide both tenants with a brief refresher on how to properly use the "AUTO" mode and why maintaining a stable temperature prevents overconsumption. A minor condensate leak was spotted on one of the drains and was quickly fixed by adjusting the drain’s slope.

Stop 3 – Cleaning and recalibration of a BOSCH unit in Outremont

The final service call of the day takes place in a large, older home in Outremont. This setup includes a BOSCH BOVA36HDN1-M20G, a hybrid multi-zone model with inverter R-410A technology, ideal for spacious environments.

The main challenge here is accessing the outdoor unit, which is wall-mounted on the third floor. Samuel gears up with a safety harness and proceeds cautiously. He found a slight imbalance in the exterior fan caused by a branch lodged under one blade, which he carefully removed.

End-of-day report: precision, professionalism, and customer satisfaction

Each job is meticulously documented using our mobile app:

  • Technical observations

  • Before/after cleaning photos

  • Specific recommendations for each client

  • Suggested next maintenance date

These reports are archived and forwarded to our admin team, who track them for annual service reminders. This process allows AirGreen to maintain a trust-based relationship with every client and to ensure long-term performance tracking for each multi-zone heat pump we install.

Why is annual maintenance essential for multi-zone heat pumps?

Unlike single-zone systems, multi-zone heat pumps involve multiple interconnected components that require regular technical inspections. Without proper maintenance:

  • Efficiency can drop by up to 30%

  • Noise levels may increase

  • Premature system failures can occur

  • Air filters can get clogged, reducing air quality

Thorough maintenance also helps maintain eligibility for certain energy-efficiency grants offered by Hydro-Québec and other local programs.

AirGreen: HVAC excellence on the ground

Our technicians like Samuel receive continuous training, use professional-grade tools, and are fully equipped to handle every configuration—whether in condos in Montreal, bungalows in Laval, or multi-storey homes on the South Shore. Their expertise is backed by strong logistics and attentive customer service.

Conclusion: A technical service that truly meets your expectations

Servicing your multi-zone heat pump is not a luxury—it’s an investment in comfort, health, and energy efficiency. At AirGreen, we’ve committed to a rigorous, human, and locally-rooted HVAC maintenance service, tailored to meet the needs of property owners and building managers across Greater Montreal.

Trust our team to keep your multi-zone system running smoothly and efficiently, year after year.