Step Action
1 Close the drain valves (see the section Cooling and condensate system).
2 Switch on the voltage.
3 Start the compressor and stop it immediately. Check the rotation direction of the drive
motor while the motor is coasting to a stop. Have confirmation of correct rotation
direction of the motor, look at the Elektronikon readout of the vessel pressure. The
vessel pressure should have slightly risen during the short period of operation.
On air-cooled compressors, check the rotation direction of the fan motor. The fan is
visible through the grating in the air inlet panel (see section Dimension drawing). The
correct rotation direction is indicated by arrows on the fan inlet plate.
On Full-Feature compressors, open the door of the dryer compartment and check the
rotation direction of the fan motors of the condenser. The correct rotation direction is
indicated by an arrow.
4 If the rotation direction is wrong, press the emergency stop button, switch off the voltage
and reverse two incoming electric lines.
If the rotation direction of the fan motor is wrong, consult your Atlas Copco customer
centre.
5 Run the compressor for a few minutes and check that it is operating normally.
5.2 Before starting
Warning
The operator must apply all relevant safety precautions.
If the water system was drained, close the drain valves.
Switch off your mobile phone when in the vicinity of a VSD compressor which is under
tension.
Instruction book
9829 3178 63 79
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