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units for leaks; adds gas to refrigeration units. Monitors valves and gages to ensure proper operation; adjust valves, pipes, etc., as needed. Changes and cleans oil and air filters. Operates Centrifugal
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cleans oil and air filters. Operates Centrifugal and Reciprocating chillers. Assist in installing air conditioning and heating units and related equipment. May assist in training lower-level employees
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