ESIE10-01 Alarms and Events
Part 3 – Troubleshooting 3–27
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1.4.9 High Oil Pressure Difference
Alarm description (as shown on screen): Oil Pres Diff High N.
Trigger: When the Oil Pressure Differential measured over the oil filter is bigger then the High Oil
Pressure Differential set point for a time greater than Oil Pressure Differential Delay, the unit will trip
on high oil pressure difference.
Action Taken: Rapid stop circuit.
Reset: This alarm can be cleared manually via the Unit Controller keypad.
HP Oil Pressure sensor
Oil Filter
(inside compressor)
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