A commercial HVAC technician is responsible for keeping heating, cooling, and ventilation systems running reliably in offices, retail spaces, restaurants, warehouses, and industrial facilities. Day to day that includes installing rooftop package units, VRF systems, and split systems, performing scheduled preventative maintenance on filters, coils, belts, and refrigerant charges, and diagnosing and repairing breakdowns, from failed compressors and control boards to refrigerant leaks and duct-pressure issues.
Commercial work also involves tasks you don't see in a residential home: balancing airflow across many zones, calibrating building automation and thermostats, inspecting economizers and make-up air systems, and documenting service for compliance with Title 24, fire codes, and refrigerant-handling regulations. Good commercial technicians also help owners plan capital replacements before a failure shuts the business down.
