ABB ACS6000 - Accessing the Fan Units in the WCU Roof Box; Replacing Auxiliary Fan Units

10 PREVENTIVE AND CORRECTIVE MAINTENANCE
3BHS212794 E01 REV M ACS6000 USER MANUAL 260/278
10.4.15.2 Replacing auxiliary fan units
1. Switch off the miniature circuit breaker of the fan unit that you want
to replace.
Note: To identify the miniature circuit breaker, see “Appendix D –
Wiring diagrams”.
2. (Only for fan units of the optional REB) Unscrew the ventilation grid
(circles) and flip the grid downward (arrow).
IMPORTANT! The ventilation grid is hinged. You DO NOT need to
remove it.
Figure 10-25 Accessing the fan units in the WCU roof box
3. Disconnect the wires (1) and unscrew (2) the fan units.
4. Remove the fan unit.
5. Reinstall the new one in reverse order of removal.
1
2
2
2
2
2
2
2
2