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38
OIL PRESSURE INSUFFICIENT
Logical variable :
DHUILEmn
Incident codes KP02 : mn2
KP07 icon :
Description
This fault only applies to semi-hermetic reciprocating compressors.
The total time during which the oil pressostat on compressor mn POILmn remains tripped exceeds 90 seconds.
The oil pressure is then insufficient for proper lubrication of the compressor.
Note : The counter for periods of low oil pressure is reset to zero if the oil pressostat remains above its
triggering point for over 3 minutes.
Action
F Immediate halt of compressor mn.
F The fault is displayed on the screen.
F The remote fault report is delayed for 6 minutes.
Resetting
The first fault is reset automatically.
After this, compressor mn can only be restarted after a manual reset
Note : Counters for “oil pressure” failures TOOILmn are all reset to zero daily at 6 pm, on condition that the
maximum number of authorised faults has not been reached.
Trouble-shooting Solution
Lack of oil in the compressor.
Oil pump fault.
Oil pressostat wrongly set.
Wiring fault on oil pressostat.
Check oil level.
Change oil pump.
Check setting of oil pressostat.
Check wiring on oil pressostat.
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