SC Refrigeration Practice Questions - South Carolina Refrigeration Contractor Examination Exam

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IMC 1106.5 requires clearly identified break-glass (or approved tamper-resistant) remote switches for a machinery room. Which pairing is correct?

On-only control of compressors and off-only control of ventilation fans Off-only control of refrigerant compressors, refrigerant pumps, and normally closed automatic refrigerant valves; on-only control of ventilation fans On/off maintained switches for both the refrigeration plant and the fans A single switch that starts the compressors and stops the fans together

Correct Answer:

Off-only control of refrigerant compressors, refrigerant pumps, and normally closed automatic refrigerant valves; on-only control of ventilation fans

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