4. Remove the fastening screws (a) and finger guard (b) of the fan.
5. Install the new fan in reverse order. Make sure that the arrow indicating the air
flow direction points up.
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Replacing the roof fan (IP54/UL type 12)
WARNING!
Obey the safety instructions of the drive. If you ignore them, injury or
death, or damage to the equipment can occur.
1. Stop the drive and do the steps in section Electrical safety precautions (page 21)
before you start the work.
2. Remove all ventilation covers (lift and pull) and filters.
3. Remove the roof plate on top of the outlet (if any).
4. Disconnect the fan supply wires.
5. Loosen the mounting screws of the fan.
6. Remove the fan.
7. Install the new fan in reverse order.
Maintenance 191