Union position

Pay Rate: $34.19

Installs, services, and repairs environmental-control systems in residences, office buildings and other commercial/ industrial settings, utilizing knowledge of refrigeration theory, pipefitting, and structural layout. Strong computer skills required for troubleshooting and correcting digital control software. Mounts compressor, condenser units and chiller units on platform or floor, using rigging, power, and hand tools, following blueprints, or engineering specifications. Fabricates, assembles, and installs ductwork and chassis parts, using portable metalworking tools. Installs evaporator units in chassis or in air duct systems, using hand and power tools. Cuts and bends tubing to correct length and shape, using cutting and bending equipment and tools. Cuts and threads pipe, using machine-threading or hand- threading equipment. Joins tubing or pipes to various refrigerating units by means of sleeves, couplings, or unions, solder and brazed joints, using torch. Installs expansion and discharge valves in circuit. Electrically connects motors, compressors, temperature controls, humidity controls and circulating ventilation fans to control panels and connects control panels to power source. Installs air and water filters in completed installation. Injects small amount of N2 into compressor to test systems and adds refrigerant gas and / or glycol to build up prescribed operating pressure. Observes pressure and vacuum, gauges, and adjusts control to ensure proper operation. Tests joints and connects for gas leaks, using gauges or soap and water solution. Wraps pipes in insulation batting and secure them in place with cement or wire bands. Replaces defective breaker controls, thermostats, switches and fuses, and electrical wiring to repair equipment. May install, repair, and service air conditioners, ranging from 5-200 tons cooling capacity in warehouse and small factory buildings. Performs other duties as assigned.