Do you have a high school diploma or GED and a minimum of five (5) years of related experience in the installation, maintenance, troubleshooting, and repair of heating, ventilation, air conditioning, and refrigeration systems or An equivalent combination of relevant education, technical training, apprenticeship, and experience?. Services and maintains HVAC systems, including rooftop and package units, split systems, heat pumps, air handlers, fan coil units, exhaust and ventilation systems, evaporative coolers, and related equipment.