SC Refrigeration Practice Questions - South Carolina Refrigeration Contractor Examination Exam

Ducts and air handlers in a machinery room that operate at a lower pressure than the room shall be:

Left open so the room can use them as makeup air Sealed to prevent refrigerant leakage from entering the airstream Fitted only with a smoke detector Interlocked to shut down when the compressor starts

Correct Answer:

Sealed to prevent refrigerant leakage from entering the airstream

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