Troubleshooting/Maintenance/Repair - SystemAir DVC Montageanleitung

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10.

Troubleshooting/maintenance/repair

10.1 Safety information
Troubleshooting and maintenance may only be carried out by a trained electrician, or trained and instructed spe-
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cialist personnel!
Observe the work protection regulations when troubleshooting!
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Observe the 5 rules of electrical safety (see section 2.5)!
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Switch the fan off.
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10.2 Switching the device off for maintenance work
WARNING
Danger from electrical voltage!
Observe the 5 rules of electrical safety (see section 2.5)!
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" Switch off the device via the control input.
" Do not switch the motor (e.g. in cycle operation) on or off via the mains.
" Disconnect the device from the power supply.
" When disconnecting, make sure to remove the earth wire last!
10.3 Preconditions
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The power supply has been switched off (all-pole circuit breaker).
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The rotor is at a standstill.