Air Conditioning Equipment Mechanic

4 weeks ago


Washington, United States Architect Of The Capitol Full time

Tour of Duty:  Sunday through Thursday, 5:30 am to 2:00 pm;    Major Duties are quoted at WG-11 level:

Air Conditioning and Refrigeration Assembly, Operation, Upkeep and Repair

Runs and sustains air conditioning equipment throughout offices, facilities, and historical exhibit areas requiring critical control of temperatures.
Makes all required mechanical connections in order to secure ventilation and exhaust fans for steadiness and cavitation-free functioning.
Fuses chilled water or refrigerant lines to condensers, evaporators, compressors, and controls; evacuating, dehydrating and charging system with appropriate refrigerants; checking for refrigerant leakages; resetting controls essential to maintain desired pressures, humidity, and temperatures.

Air Conditioning Troubleshooting

Locates and diagnoses problems in control systems as a result of trouble calls or inspections.
Fabricates new and/or repairing parts such as hinges, flanges, pipe joints, and bearing sleeves, which can require welding; making all necessary adjustments in electrical and pneumatic controls for optimal operation of chilled or hot water valves, booster heaters, pre-heaters maximum air return from outside, and automatic and bypass volume dampers.

Electronic Equipment Maintenance

Routinely maintains specialized or complex electronic equipment using manufacturer's equipment guides and specifications, industry criteria, and established techniques for guidance.
Checks systems for suitable running cycles, refrigerant and oil leakages, motor and compressor temperatures, belt adjustment and replacement, set points, cleanliness, operations and superheat rotation, and heating protection; noting any faulty or damaged parts or unsuitable settings and adjustments, and making necessary modifications or maintenance, reporting any equipment needing major repairs to the supervisor.

Performs other related duties as assigned.



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