Fig. 32 Engine coolant pre-heating
1 Operating panel
2 Connection for the coolant pre-heater
3 Power cable
4 Coolant pre-heating
5 Engine block
1.
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 ground.
➤ Have the coolant pre-heating and associated wiring checked according to the maintenance
schedule.
2. Connect the coolant pre-heater to the user's power socket with the power cable supplied.
Operating the frost protector
Fig. 33 Operating the frost protector
1 Frost protector
2 Ball valve (closed)
3 Level of antifreeze
➤ Use the checklist when initially starting the frost protector.
To be checked see chapter Confirmed?
Level of antifreeze in the frost protector. 10.8.5
7 Initial Start-up
7.4 Low-temperature operation (winter)
No.: 9_6999 23 USE
Operator Manual Screw Compressor
M100
77
Option bb
Option bc
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