Replacing A T/H Sensor - Huawei FusionModule1000A40 Maintenance Manual

FusionModule1000A40 Prefabricated All-in-One
Data Center
Maintenance Guide
Impact on the System
Lights in the data center will turn off.
Preparations
Tools: insulation gloves, Phillips screwdriver, step ladder, label, marker
Materials: spare AC actuator
Documents: none
Skill requirement: extra low voltage (ELV) engineer
Procedure
Step 1 Switch off the upstream AC input circuit breaker for the AC actuator.
Step 2 Label each cable based on the corresponding ports on the AC actuator.
Step 3 Open the cover on the front panel of the AC actuator, and disconnect the cables.
Step 4 Remove the faulty AC actuator.
Step 5 Install the spare AC actuator in the original position and connect the cables.
Step 6 Switch on the upstream AC input circuit breaker for the AC actuator and press the
wireless communications button on the AC actuator to network the AC actuator
with the ECC800.
----End

5.3.9 Replacing a T/H Sensor

Prerequisites
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Procedure
Step 1 Remove cables from the T/H sensor.
Step 2 Remove the T/H sensor from its base.
After removing cables, wrap exposed terminals with insulation tape and do not
block cable labels. If cable labels are blocked, cables may be connected incorrectly.
Step 3 Install a new T/H sensor onto the base.
Issue 04 (2021-02-10)
Recommended tools: Phillips screwdriver, flat-head screwdriver
A T/H sensor needs to be replaced.
A spare T/H sensor of the same model is available and functional.
NO TICE
Copyright © Huawei Technologies Co., Ltd.
5 Parts Replacement
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