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Oil separator element life cannot be predicted; it will vary greatly depending on the conditions of
operation, the quality of the oil used and the maintenance of the oil and air filters. The condition of the
separator can be determined by pressure differential gauging or by inspection.
Oil Coalescing Element Monitoring - The AirSmart controller keeps track of the pressure differential
across the coalescing element. A pressure differential of 8 psi will trigger a service advisory to change
the element and a pressure differential of 15 psi will initiate a system shutdown.
Using an oil separator element at excessive pressure differential can cause damage to
equipment. Replace the separator when the "Change Separator" advisory appears.
N
N
N
O
O
O
T
T
T
I
I
I
C
C
C
E
E
E
A sudden drop to zero pressure differential or sudden heavy oil carryover may indicate
a ruptured element.
Figure 5- 5 – CHANGING OIL COALESCING ELEMENT
Oil Coalescing Element Service – Use the following procedures to replace or inspect the element:
1. Be sure the unit is completely off and that oil sump is depressurized.
2. Disconnect, lockout and tagout power supply to the compressor package.
3. Remove bolts holding the oil sump cover and lift the cover away.
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