The Heating, Ventilation, and Air Conditioning Mechanic (Research Facility) installs, modifies and repairs refrigeration - hermetic, semi-hermetic, mechanical, screw, scroll and centrifugal units to 1400 tons; air conditioning, ventilation; reverse osmosis systems, computer rooms; process coolers; evaporative cooling; air compressing and related control systems, including pneumatic, DDC, and building control systems equipment. Mounts compressor and condenser units on platform or floor, using hand tools, following blueprints or engineering specifications.

This mechanic may perform complex repair of systems component such as compressors, condensers, heat pumps regulators, fluid and refrigerant gas lines valves, meters, gages, thermostats, pumps, mechanical linkage, and electrical sensing, switching and controlling devices including pneumatic controls, variable speed drives, digital controlled devices, electronic, hydraulic heating and cooling and economizer systems Fabricates, assembles, and installs ductwork and modifications. Fabricates, assembles, and installs ductwork and chassis parts, using portable metalworking tools and welding equipment. Installs evaporator unit in chassis or in air-duct system, using hand 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, and solders joints, using torch, forming complete circuit for refrigerant. Installs expansion and discharge valves in circuit. 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 refrigerant into compressor to test systems and adds freon gas to build up prescribed operating pressure. Observes pressure and vacuum gauges and adjusts controls to insure proper operation. Tests joints and connections for gas leaks, using gauges or soap-and-water solution. Wraps pipes in insulation batting and secures them in place with cement or wire bands. Replaces defective breaker controls, thermostats, switches, fuses, and electrical wiring to repair installed units, using electrical wiring to repair installed units, using electrician's hand tools and test equipment.

Pay:

Rate per CBA is $50.32/hour. Full healthcare coverage in addition to the hourly wage as well.

• Must have HVACR license.
• Strong background in chillers and refrigeration.
• Ability to obtain Access to Federal installation.