EMCOR Group - - Responsibilities: Maintains, repairs, installs, inspects, and adjusts commercial and industrial HVAC systems.; Performs preventative maintenance tasking on all HVAC equipment.; Reads gauges and instruments, adjusts actuators, valves, controls, and pumps to control system operation.; Operates refrigerant recovery equipment, vacuum pumps, charging equipment and service gauges.; Screws, bolts, rivets, welds, and brazes parts to assemble structural and functional components.