ABB ACS880-17 - Replacing the IP54 (UL Type12) Roof Fan (Options +B055 and +C128, Frame R11)

142 Maintenance
 Replacing the IP54 (UL Type12) roof fan (options +B055 and +C128,
frame R11)
WARNING! Obey the instructions in chapter Safety instructions. 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 on page 16
before you start the work.
2. Slide the front gratings upwards and remove them.
3. Remove air filters.
4. To remove the wire mesh, undo the mounting screws.
5. Disconnect the fan power supply wires.
6. Remove the mounting screws of the fan.
7. Remove the fan.
8. Install the new fan in reverse order.
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5
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2
4
6
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7