The Turbo Air® 3000 Centrifugal Compressor Compressor Handbook

The Lubrication System
Duplex Oil Filter
In many instances, compressed air systems operate on a continuous basis. Since it is frequently inconvenient
to completely shut down compressor operation to perform a simple maintenance task, Cooper
Turbocompressor offers the Duplex Oil Filter option. The duplex oil filter eliminates the necessity for
compressor shutdown during filter maintenance. (Refer to Section Five, Maintenance, for full instructions
regarding this procedure.) The Duplex Oil Filter option is shown in Figure B—5.
Figure B—5 The Duplex Oil Filter
Oil Filter Differential Pressure Monitoring
With this optional feature, a second pressure transducer is installed before the oil filter. (The system’s
standard pressure transducer is located between the filter and the gearbox.) In such instances, the
Vantage Control System is programmed to calculate the differential pressure across the oil filter and to
provide Alarm and Trip functions. The Oil Filter Differential Pressure Monitoring option is particularly
useful when included as part of a predictive maintenance program. Figure B—6 shows the Oil Filter
Differential Pressure Monitoring option.
Oil from Cooler
Oil Filter
Figure B—6 Oil Filter Differential Pressure Monitoring Option
Oil to Gearbox
Low Oil Level Indicator
With the installation of the Low Oil Level Indicator option (a switch located in the main oil reservoir)
the Vantage Control System will report any oil level in the reservoir that is below a pre-defined level.
The control system then indicates an Alarm condition to alert the operator of the problem.
B—9