The Turbo Air® 3000 Centrifugal Compressor Compressor Handbook

The Turbo Air 3000 Centrifugal Compressor Operator’s Manual
Routine Shutdown—Local Control
Use the following procedure to shutdown the compressor under normal conditions.
4—6
CAUTION:
If the compressor is to be shutdown for an extended period in a cold environment, drain
all water from the compressor's cooling system after the shutdown. Water in the heat
exchangers may freeze and cause damage to the internal tubes. An alternative to draining
is to maintain some minimum flow through the coolers.
1. Press the STOP key.
The automated stop sequence, including stopping the motor, begins.
Stopping
Description Status
1. Motor Enable = OFF Completed
2. Oil Pump = OFF Waiting 2
(Note: Messages and data displayed on stop sequence screen may differ among systems.)
2. When you press the STOP key, the Vantage control system software tells the bypass valve (or
blow-off valve) to open and the inlet guide vanes (or other throttling device) to close
completely. (This takes 10-15 seconds.) In addition to the closing of the inlet, the
automated stop sequence begins.
3. Close the air system block valve.*
4. Open the condensate drain bypass valves. (May occur automatically as part of sequence.)*
5. Allow the cooling water and oil to circulate for at least 30 minutes to remove heat.
6. Turn off the water supply, if not controlled automatically. (May occur automatically as part of
sequence.)
7. Stop the electric oil pump, if wired separately. (May occur automatically as part of sequence.)
8. Rack out the drive motor starter disconnect.
9. Turn off the reservoir venting system.