US 750

Demonstrate knowledge of electrical test instruments and take measurements

US 28952

Demonstrate knowledge of refrigerants and their management

US 28970

Demonstrate knowledge of the principles of refrigeration and air conditioning

US 28965

Maintain and service commercial RAC systems and equipment under supervision.

US 28963

Install commercial RAC equipment under supervision.

US 28910

Commission commercial RAC equipment under supervision

US 23959

Prepare and purge braze piping for refrigeration and air conditioning

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