Atlas Copco AWC160

Instruction Manual
LRP200000228 Issue A 21
3.10 Connect the electrical supply to the motor
WARNING
Ensure that your electrical connections comply with all applicable local and
national safety standards. It must be connected to a suitably fused and
protected electrical supply with a suitable earth (ground) point.
If you have fitted a motor to the pump (as described in Section 3.7.2) connect the electrical supply to the
motor in accordance with the manufacturer’s instructions.
Size motor cables according to max motor current (see motor data plate). Below table for your
reference.
Table 13 – Cable reference data
Motor power (kw)
Rated current (A)
Recommended cable size
4
≤9
4G2.5
5.5
≤12
4G4
7.5
≤15
4G6
11
≤23
4G6
15
≤32
4G10
18.5
≤38
4G16
3.11 Check the direction of pump rotation
WARNING
Ensure that the pump rotates in the correct direction. If it does not, the pump
and your vacuum system can become pressurised when you operate the
pump.
WARNING
If you remove a guard during the following procedure, ensure that you do
not come into contact with the shaft, the coupling/belt or the drive system
when you operate the pump. If you do, you may be injured by the rotating
components.
CAUTION
Do not continue to operate the pump without sealing liquid in the pump. If you do, there may
be a risk of damage to the pump.
Check the direction of rotation of the pump as follows:
1. Atlas Copco preferred method would be to visibly check the fan on the motor for direction of rotation. If
this is not possible, temporarily remove any guard over the drive coupling or belt.
2. Observe the pump drive shaft while you start up the pump (refer to Section 4.2), then shut down the