Cx Ii/Cxi Ii - Mitel 3300 Technician's Handbook

3300 ICP Technician's Handbook

CX II/CXi II

To replace the fan assembly in an CX II/CXi II:
1. Power down the controller and remove the controller cover; see page
47 of the Technician's Handbook for procedure.
2. Using diagonal cutters, clip the tie-wrap around the fan and ethernet
cables; see (1) in Figure 76. Take care to avoid cutting the cables.
3. Disconnect the two fan power cables from the main board; see (2) in
Figure 76.
4. Remove the four screws that fasten the fan assembly to the cabinet
frame; see (3) in Figure 76.
5. Remove the fan assembly from the controller chassis.
6. Insert the replacement fan assembly so that the sticker label on the
center of the fans are facing out from the cabinet towards the grill. For
proper air flow, the fan sticker label must be facing the cabinet grill.
7. Replace the fan screws.
8. Connect the two fan power cables.
9. Replace the cabinet cover and secure with screw.
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Figure 78: Fan Removal
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