9.3 Operation/use
Only use the fan in accordance with this operating instruction and the operating instructions of motor.
Control the fan during operation for correct function.
Switch the fan off as planned.
WARNING
Hazard from electrical voltage and fl ying parts!
Errors occurring can lead to personal and/or property damage!
Switch the fan off as planned:
» In cases of a non-typical noise from bearings, vibrations, pressure pulsation.
» In case of overcurrent, overvoltage or temperature (nameplate)..
9.4 Resetting the thermo-contacts
9.4.1 Automatically resetting thermo-contact (TW)
If the automatically resetting thermo-contact triggers, the fan goes back into operation as soon as the motor has cooled down.
9.4.2 Thermo-contact to be reset manually (TB)
If the thermo-contact to be reset manually (TB) triggers:
Reset the thermo-contact (TB) by resetting the TK reset button on the motor with a pointed object (blow-out side of the fan).
Some fans have a small opening in the lid for this purpose.
9.4.3 Thermo-contact to be reset manually (SP1)
If the thermo-contact to be reset manually (SP1) triggers:
Reset the thermo-contact (SP1) by stopping the current supply for about 10-60 minutes.
9.4.4 Fans with fi nished thermo-contacts (TK)
Reset fans with fi nished thermo-contact lines (TK) via the external motor protection switch.
NOTE
» Check whether the rotor is running freely.
» Get in touch with your supplier if the motor does not restart after examination and/or resetting of the motor pro-
tection.
48
Operation
Roof fans - V 1.0
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