Responsibilities:Installs, repairs, adjusts, maintains, retrofits, and troubleshoots refrigerant controls, compressors, heat pumps, split systems, ductless splits, packaged units, electric motors, motor controls, commercial furnaces and related controls, water pumps, exhaust fans, unit heaters, economizers, humidifiers, capacity controls, sizes of air compressors and air dryers, and related accessories and controls, chillers, (reciprocating, screw and centrifugal), cooling towers, automation control systems, and all types of glycol systems. Performs services of diagnosing, trouble-shooting and installing air conditioning and heating systems, air supply and return plenums with duct board, and flex ducting.