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
8.Open
9.Close oil bypass
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
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
16.Open suction oil charging valve (1) and fill 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 filled 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 fill 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.
SUCTION INLET
OIL RETURN LINE | PRESSURE EQUALIZING LINE |
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COALESCING |
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| FG |
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| 001 |
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| 1 | OIL CHARGE |
PT | TE |
001 | 001 |
BLEED
MOTOR 
8
LG 001
OIL
1000W
TE | QE |
005 | 101 |
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| TE |
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| 002 |
004 |
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| REMOTE |
TE |
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| OIL COOLER |
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| COMPRESSOR | 007 |
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| TE |
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| 2 | VENT |
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PT |
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002 |
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| QE |
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| 007 |
BLEED |
| 3 |
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| TE | |
OIL SEPARATOR | DRAIN 003 | ||
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LG |
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002 |
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1000W | QE | 1000W |
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QE | DRAIN |
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102 | 103 |
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OIL FILTER | OPEN |
7 |
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OIL FILTER 
OPEN 7 
| 4 | CLOSE | |
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OPEN |
| MOTOR | |
OIL MIXING | 5 | ||
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VALVE |
| OIL PUMP | |
6 |
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PT |
| DRAIN | |
004 |
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BLEED
Figure
VSG/VSSG • Installation, Operation and Maintenance Manual •Vilter/Emerson • 35391SSG | 3 – 21 |
