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9.5
Switching the device on
»
Before switching the device on, check the device for externally visible damage and ensure that the
protective equipment functions properly.
»
Check the airways of the fan for foreign bodies and remove any found.
»
Apply the nominal voltage for supply.
»
Start the device.
10. Troubleshooting/maintenance/repair
10.1
Safety information
»
Troubleshooting and maintenance may only be carried out by a trained electrician, or trained and
instructed specialist personnel!
»
Observe the work protection regulations when troubleshooting!
»
Observe the 5 rules of electrical safety (see section 2.5)!
»
Switch the fan off.
WARNING
Danger from electrical voltage!
»
Observe the 5 rules of electrical safety (see section 2.5)!
10.2
Switching the device off for maintenance work
»
Disconnect the device from the power supply.
»
When disconnecting, make sure to remove the earth wire last!
10.3 Preconditions
»
The power supply has been switched off (all-pole circuit breaker).
»
The rotor is at a standstill.
WARNING
Danger from electrical voltage!
»
Observe the 5 rules of electrical safety (see section 2.5)!
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