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
➤ Use the checklist when initially starting the frost protector.
To be checked See chapter Confirmed?
Check the level of antifreeze in the frost protector. 10.8.3
Close the tap on the frost protector. 8.4
Tab. 66 Low-temperature equipment checklist
7.5 Activating the generator
The generator can be operated without electrical grounding.
Test the insulation monitor daily with the engine running before activating the generator.
➤
Test daily.
7.5.1 Generator control box 400V with insulation monitoring
Fig. 29 Insulation monitoring – 400V, 3-phase generator
1 Generator control box
2 «Main switch»
3 Single-phase AC power sockets
4 3-phase AC power sockets
5 Test button «insulation monitor» with indi‐
cator light for ground short
6 «Mode selection switch»
7 Position «main switch» after the main cir‐
cuit breaker has been activated
➤ Please note the positions of «insulation monitor» and «main switch» test buttons.
7 Initial Start-up
7.5 Activating the generator
80
Operator Manual Screw Compressor
M27 No.: 9_9548 05 USE
Option bc
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