Replacing The External Circulation Fan Of The Heat Exchanger - Huawei TP48200A-HT19C4-1 User Manual

TP48200A-HT19C4-1 and TBC300A-TCA2 Telecom
Power
User Manual
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4.4.7 Replacing the External Circulation Fan of the Heat
Exchanger
Prerequisites
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
Procedure
Step 1 Disconnect the power cable from the UIM02C.
1.
2.
3.
4.
Step 2 Disconnect the transfer terminal from the external circulation fan.
Step 3 Removing the external circulation fan.
1.
2.
Issue 03 (2019-11-15)
Prepare an ESD wrist strap, a pair of ESD gloves, an ESD box or bag, the cabinet door
key, and a maintenance tool kit.
Check that the new fan is intact.
Connect the ground cable for the ESD wrist strap, and wear the ESD wrist strap and ESD
gloves.
Record the position where the UIM02C panel connects to the signal cable, and then
disconnect the signal cable.
Unscrew the UIM02C, as shown in Figure 4-8.
Disconnect the -48 V power cable from the UIM02C backplane, as shown in Figure 4-9.
Record the position where cables connect to the external circulation fan, and then
disconnect the cables.
Remove the cover from the external circulation fan, as shown in Figure 4-14.
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