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Check that safety elements and protective grilles are securely fastened.
8.5
Checking the connections
Switch the fan off.
WARNING
Danger from electrical voltage!
»
Ensure that all phases are completely free of voltage.
»
Observe the 5 rules of electrical safety (see section 2.5)!
»
Check that the connection cables are fitted properly
»
Lay the connection cables in the terminal box in such a way that allows the cover of the terminal box
to be closed without resistance.
»
Use all of the locking screws.
»
Insert the screws by hand to avoid damaging the thread.
8.6
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
8.7
Switching the device off for maintenance work
WARNING
Danger from electrical voltage!
»
Observe the 5 rules of electrical safety (see section 2.5)!
»
Disconnect the device from the power supply.
»
When disconnecting, make sure to remove the earth wire last!
8.4
Checking the safety elements
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