DRY-PIPE PROCEDURES Part 2

II. TESTING:

A. Quarterly test-system operation.

1. Open main drain valve.

2. Main should be discharging full flow.

3. Alarms should sound.

B. Close main drain.

C. Slowly drop air pressure in system through system priming valve until air compressor cycles automatically. If compressor does not cycle above 22 psi check electrical pressure switch on compressor for proper functioning.

D. Compressor should return system pressure to pre-determined pressure setting.



The above information is provided as a courtesy and is not intended to replace the outlined procedures as given in NFPA 24. It is the owner’s responsibility to follow the outlined procedures in NFPA 24.



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