Replacing The Heat Exchanger Core - Huawei TP48200A-HX09A2 User Manual

TP48200A-HX09A2, TBC300A-TCA2 Outdoor Power
System
User Manual
Step 12 Connect the signal cable to the UIM02C panel based on the record made previously.
Step 13 Disconnect the ground cable from the ESD wrist strap and take off the ESD wrist strap and
ESD gloves.
----End

4.4.8 Replacing the Heat Exchanger Core

Prerequisites
Protect yourself against being burnt when removing the heat exchanging core as it has a high
temperature.
You have obtained an ESD wrist strap, a pair of ESD gloves, a pair of protective gloves, the
cabinet door key and maintenance tool box.
Context
You do not need to disconnect the AC input for the system.
Procedure
Step 1 Disconnect the –48V power cable from the UIM02C.
1.
2.
3.
4.
Step 2 Put on protective gloves.
Step 3 Remove the heat exchanging core, as shown in
Issue 02 (2019-02-26)
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 panel and take out the UIM02C, as shown in
Remove the –48V power cable from the UIM02C, as shown in
Copyright © Huawei Technologies Co., Ltd.
Figure
Figure 4-16.
4 Maintenance
Figure 4-5.
4-6.
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