Diagnose, service, and repair commercial HVAC: chillers, cooling towers (open and closed-circuit), condenser water and chilled water pumps, domestic water booster pumps, RTUs, condensing units, water-source heat pumps, DOAS units, VFDs, and low-voltage controls. Ability to lift and/or carry moderate weight (15-75 pounds), sit, stand, walk, climb stairs, reach repetitive hand motions, hear, speak, some travel within the district and occasionally outside the district/county, may experience prolonged and irregular work hours, and work with frequent interruptions.