Replacing The Internal Circulation Fan Of The Heat Exchanger - Huawei Telecom Power TP48200A-HT19C3 User Manual

TP48200A-HT19C3 and TP48200A-HT19C4 Telecom
Power
User Manual
Follow-up Procedure
Pack the removed component and return it to the local Huawei warehouse.

4.4.6 Replacing the Internal Circulation Fan of the Heat Exchanger

Prerequisites
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Procedure
Step 1 Disconnect the power cable from the UIM02C.
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2.
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4.
Step 2 Disconnect the transfer terminal from the internal circulation fan.
Step 3 Removing the internal circulation fan.
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3.
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 to 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 internal circulation fan, and then
disconnect the cables.
Remove the cover from the internal circulation fan, as shown in Figure 4-11.
Figure 4-11 Removing the cover from the internal circulation fan
Remove the fan fixing plate from the internal circulation fan, as shown in Figure 4-12.
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