
44
TROUbLESHOOTING
7.6
PRESSURE RELIEF VALVE OPENS REPEATEDLY
CAUSE
REMEDY
Improperly adjusted or defective control
pressure transducer (P2).
Readjust or replace control pressure transducer (P2).
Incorrect control settings.
Readjust or replace pressure regulating valve.
Receiver pressure transducer (P1) is
defective.
Replace receiver pressure transducer (P1).
Faulty pressure relief valve.
Replace pressure relief valve.
7.7
RECEIVER PRESSURE VENTING THROUGH bLOW-DOWN
CAUSE
REMEDY
Defective check valve portion of minimum
pressure valve.
Repair or replace check valve.
Summary of Contents for SP20
Page 12: ...4 Introduction ...