Instruction book
60
909935AIB
Step
Action
1
Check that the electrical connections correspond to the local codes. The installation
must be earthed and protected by fuses in all phases. An isolating switch must be fitted.
2
Check the wires on transformers (T1/T2) for correct connection.
3
Check the setting of the circuit breakers. Refer to the
Settings of circuit breakers
section.
4
Check that overload relay (F21) is set for automatic resetting and check its setting.
Refer to the
Setting of overload relay and fuses
section.
Start up
Step
Action
1
Close the drain valves. Refer to the
Cooling and condensate system
section.
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.
4
If the rotation direction is wrong, press the emergency stop button, switch off the voltage
and reverse two incoming electric lines.
The correct direction of rotation is indicated for the drive motor by an arrow on the gear
casing and for the fan motors by arrows on the motor housings.
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