Replacing Auxiliary Fan Units; Fig. 123. Accessing The Fan Units In The Wcu Roof Box - ABB ACS6080 User Manual

9.4.15.2. Replacing auxiliary fan units

1. Switch off the miniature circuit breaker of the fan unit that you want to replace.
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.

Fig. 123. Accessing the fan units in the WCU roof box

3. Disconnect the wires (1) and unscrew (2) the fan units.
1
4. Remove the fan unit.
5. Reinstall the new one in reverse order of removal.
PRODUCT
ACS6080
2
2
DOCUMENT KIND
User manual
PREVENTIVE AND CORRECTIVE MAINTENANCE
2 2
2 2
DOCUMENT ID.
3BHS842007 E01
2
2
REV. LANG. PAGE
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