US 31809-01 | Fabricate and assemble components for refrigeration or air conditioning systems under supervision

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About this standard This unit standard is intended for people under training in the refrigeration and/or air conditioning (RAC) industries. People credited with this unit standard are able to, under supervision: prepare to fabricate, and fabricate secondary components for refrigeration or air conditioning systems; prepare to assemble, and assemble refrigeration or airconditioning components; check assembled components for compliance with drawings and instructions; and complete the fabrication and assembly tasks. Show more