SC Air Conditioning Practice Questions - South Carolina Air Conditioning Contractor Examination Exam

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Insulation on a cold refrigerant suction line or chilled-water pipe must include a continuous vapor retarder primarily to:

Keep warm, moist room air from reaching the cold surface and condensing inside the insulation Allow the pipe to sweat so leaks are easier to find Replace the need for pipe hangers Increase the pipe's flame-spread rating above 200

Correct Answer:

Keep warm, moist room air from reaching the cold surface and condensing inside the insulation

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