Changing the drive motor connection
➤ Open the control cabinet and connect the motor in accordance with the electrical diagram.
Adjusting the overload protection cutout
➤ Check the overload protection relay setting.
AIRTOWER 3C AIRTOWER 4C AIRTOWER 5C
AIRTOWER
7.5C
208V, 3-ph, 60Hz [A]
5.7
7.1
9.5
12.2
230V, 3-ph, 60Hz [A]
5.3
6.7
9.5
11.7
460V, 3-ph, 60Hz [A]
2.6
3.4
4.7
5.9
Tab. 34 Overload protection cutout settings.
Connecting the control transformer
The pimary winding of the control transformer is not connected. The machine will not run without
connecting the control transformer according to the power supply.
➤ Open the control cabinet and connect the control transformer in accordance with the electrical
diagram.
6.7 Options
6.7.1 Option H1
Anchoring the machine
➤ Use appropriate fixing bolts to anchor the machine.
Further information Details of the fixing holes are contained in the dimensional drawing in chapter 13.2.
6
Installation
6.7
Options
9_6917 34 USE
Operator Manual Screw Compressor
AIRTOWER 3C–7.5C Tri-Voltage
43
