Cobalt Networks 8321(-C) - Manual (Page 41)

8310/8321 User Manual •••• (V 1.0) Page 41
Cooling Features
The 8321 series frames come standard with the Cooling Fan Module installed as original
equipment from the factory. However, if you need to replace the ventilation in a 8321 series frame
door, the optional CFM-8321 Cooling Fan Module is available as a field installation kit.
Cooling Fan Functions and User Controls
The 8321 series frames includes Fault LEDs and the Alarm mute button on the front of the frame
door. For details on the LED functions, refer to Table 2.2. For operational details for your MFC-
8300 series controller card, refer to the MFC-8300 Series User Manual.
Figure 4.5 8321 Series Frame Door Features
Replacing the CFM-8321 Cooling Fan Module
This section includes instructions on installing the CFM-8321 Cooling Fan Module Replacement
Kit. The CFM-8321 Cooling Fan Module Replacement Kit includes the fan board and filter pre-
installed in a new 8321 series frame door.
Use the following procedure to replace the CFM-8321 Cooling Fan Module:
1. Carefully remove the door from the frame as follows:
• Gently pull the side door tabs towards the center of the door, releasing the door from
the frame. The door extender arms prevent the door from falling.
• Using both hands, pull the door towards you.
• Tilt the door upward until the arms match the cutout.
• Gently push the door extender arms in and over the retaining bolts and unhook from
the frame.
2. Remove the door and place it on a clean, flat, static-free surface
3. On the new frame door of the CFM-8321 Cooling Fan Module, verify that the Alarm
Mute button pushes in and out without binding.
This completes the procedure for replacing the CFM-8321 Cooling Fan Module.