Long-Term Shutdown - WDM PI Operation Manual

PI Operation Manual

5.6 LONG-TERM SHUTDOWN

1. Follow the stopping procedure described in SECTION 5.4 – STOPPING.
2. While the unit is idle:
a. If the plant is in an operational state, warm up and start the unit at monthly intervals (see
SECTION 5.2 - STARTUP
for details).
b. If the plant is not in an operational state, turn the unit over by hand a couple of times at monthly
intervals, ensuring the shaft is not returned to the same position, to allow the shaft to rest in a
different position every time.
3. If there is danger of freezing, drain the pump and all the auxiliary piping.
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