insulated. The condensate drain pipe from the compressor to the sewer must not dip into the
water of the sewer.
11. The PD
+
filter, installed upstream the membrane dryer or the desiccant dryer, is a high
efficiency filter that traps particles down to 0.01 micron and occasionally remaining water
droplets.
12. All piping is to be connected free of stress.
13. A remote air inlet is available as an option. For more information on the maximum pipe length,
please contact your supplier.
4.3 Electrical connections
Danger: The electrical installation must correspond to the applicable codes. The mains
supply and earthing lines must be of a suitable size.
The installation must be earthed and protected by fuses in each phase. Install an isolating
switch near the compressor.
Make sure that this switch is open to isolate the compressor from the mains before carrying
out any connection.
Supply cable
Consult section Cable size for the section of the power supply cable.
An electric cable is provided on the unit. Fit a suitable plug on the cable.
Plug in the cable.
Three voltage units
The compressors leave the factory wired for 230 V. If the compressor is to be used on 460 V, rewire
the motor as follows:
1. Take all necessary precautions.
2. Change the connection in the motor terminal box according to the following instructions:
• For SF 2
+
and SF 4
+
:
• For SF 6
+
:
3. Also change the voltage connection on auxiliary transformer T1.
Instruction book
2920 7219 10 55
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