The connection for the mains supply is located on the machine's instrument panel.
Fig. 39 Coolant pre-heating
1
Operating panel
2
Connection for the coolant pre-heater
3
Power cable
4
Coolant pre-heating
5
Engine block
DANGER
Danger of fatal injury from electric shock!
Serious injury or death can result from a short-circuit in the electric coolant pre-heater.
➤ The power cable for the coolant pre-heater may only be plugged into an electrical socket fitted
with a protective earth.
➤ Have the coolant pre-heating and associated wiring checked according to the maintenance
schedule.
➤ Connect the coolant pre-heater to the user's power socket with the power cable supplied.
7.10 Option od
Activating the battery trickle charging
The supply voltage must be permanently connected as long as the compressor is to be operated in
standby mode. Trickle charging the batteries ensures they are always in a condition to start the port‐
able compressor.
7
Initial Start-up
7.10 Activating the battery trickle charging
No.: 9_9425 01 E
Service Manual Screw Compressor
M170 SIGMA CONTROL MOBIL
75
Option bb