Knowledge, Skills and Abilities:Knowledge of operation, maintenance, and repair of HVAC/refrigeration equipment. Knowledge of budgetary practices and principles. Knowledge of supervisory principles and practices. Skill in operation, installation, maintenance, and repair of HVAC/refrigeration equipment. Skill in estimating time and materials.Skill in both verbal and written communication. Skill in applying supervisory techniques.Supervises the installation, repair, overhaul, and maintenance of HVAC/refrigeration systems.