FusionModule1000A20 Prefabricated All-in-One Data
Center
Maintenance Guide
4 Parts Replacement
Issue 01 (2019-07-15)
Copyright © Huawei Technologies Co., Ltd.
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4.2.2 Replacing an Intelligent Heat Exchanger
Prerequisites
A spare intelligent heat exchanger of the same model is available and functional.
Impact on the System
The intelligent heat exchanger is powered off, the temperature inside the pre-fab. module may
become too high, affecting device operation.
Preparations
Tools: Phillips screwdriver, multimeter, protective gloves
Materials: intelligent heat exchanger
Documents: documents delivered with the intelligent heat exchanger.
Skill requirement: cooling engineer, common technician
Procedure
Step 1
Switch off the circuit breaker on the PDB that supplies power to the intelligent heat exchanger,
and verify that the intelligent heat exchanger is powered off using a multimeter before
proceeding with the following operations.
Before maintaining the intelligent heat exchanger, seal the outdoor part to prevent dust and rain from
entering the pre-fab.module.
Step 2
Remove the cables connected to the intelligent heat exchanger.
Step 3
Remove the screws that secure the intelligent heat exchanger to the pre-fab. module.