7 Repair
7.13 Replacement of Computer Fan Unit
154 3HNA009834-001 en Rev.06 Product Manual, Control Cabinet IRC5P
4. Remove fan unit attachment screw (78/3).
5. Remove fan unit (78/1).
Refitting The procedure describes how to re-install the fan unit.
WARNING! Refitting activities must only be performed when controller is switched
‘off’ and all safety precautions under ‘Removal’ have been read.
1. Install new fan unit.
2. Refit the attachment screw.
3. Refit the computer unit cover by connecting fan unit connector, placing cover
in position and installing attachment screws.
4. Refit the computer unit as described in procedure ’Replacement of Computer
Unit’ on page 143.
5. Close controller front door.
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