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VSG/VSSG • Installation, Operation and Maintenance Manual •Vilter/Emerson • 35391SSG
Section 3 • Installation
PRIMING COMPRESSOR AND OIL FILTERS
NOTE
Running the compressor oil pump at this point will
help lubricate the compressor bearings and shaft
seal surfaces.
(Reference Figure 3-20)
8. Open shut-off valve(s) (7) at oil fi lter inlet(s).
9. Close oil bypass shut-off valve (4).
10. Open oil mixing valve (6) via control panel. In Manual
Mode, change “Manually Open (%)” value to “100”.
11. Run oil pump (5) for approximately 20 seconds only.
12. Stop oil pump and wait for a minimum of 30 min-
utes. This will allow oil in the compressor (2) to drain
and oil level (8) in separator (3) to settle.
NOTE
Oil mixing valve can remain in Manual Mode since
the setpoint will change it to Auto mode. For further
details, see PLC Compact Logix manual.
13. Refer to Pre Start-Up Checklist and ensure all items
are ready prior to starting the compressor.
14. When ready, run compressor unit and allow it to
reach normal operating temperature.
15. Using a properly selected oil pump, connect oil
pump to suction oil charging valve (1). For suction
oil charging valve location, see Figure 3-16.
16. Open suction oil charging valve (1) and fi ll oil separa-
tor (3) to Normal Operating Level.
17. Once the Normal Operating level has been reached,
shut off the oil pump and close the suction oil charg-
ing valve (1). Disconnect and remove oil pump.
NOTE
Oil separator does not need to be fi lled again until oil
level reaches Minimum Operating Level.
Every size of compressor will hold different amounts
of oil, so amount of oil draining back into oil
separator will vary.
18. More accurate fi ll levels can be accomplished by
marking the level on the oil separator (2) after cor-
rect levels have been achieved during the unit oper-
ation and when the compressor unit has been down
for 1 hour.
Figure 3-20. Priming Compressor and Oil Filters
PT
004
FG
001
TE
001
PT
001
BLEED
BLEED
DRAIN
PT
002
BLEED
TE
004
QE
101
QE
102
QE
103
TE
005
1000W 1000W 1000W
LG
001
LG
002
OIL CHARGE
TE
002
DRAIN
VENT
TE
003
QE
007
TE
007
OIL SEPARATOR
OIL
COMPRESSOR
MOTOR
REMOTE
OIL COOLER
MOTOR
OIL PUMP
OIL FILTER
OIL FILTER
COALESCING OIL RETURN LINE
PRESSURE
EQUALIZING LINE
SUCTION INLET
DISCHARGE OUTLET
OIL MIXING
VALVE
DRAIN
OPEN
OPEN
OPEN
CLOSE
8
3
7
7
6
5
4
1
2