FusionModule5000 Smart Modular Data Center
Maintenance Guide (ECC800)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Figure 5-44 Removing the chilled water valve
4. Remove the chilled water valve, as shown by (2) in Figure 5-44.
After removing the adjustable nuts, clean up the thread sealant on the joints. When
installing the nuts, apply thread sealant to the threads.
After the installation, wrap thermal insulation foam around the reserved copper pipes.
Ensure that the new actuator is connected in the same position as the old one.
5. Replace the chilled water valve. Use the anaerobic thread sealants to seal the valve to a
torque of 60 N·m. Reinstall the chilled water valve in an inverse order of removing the
chilled water valve, and attach the thermal insulation foam.
Step 7 Power on the equipment. Choose Maint > Diagnostic Mode > Enter on the home screen to
enter diagnostic mode. Adjust the opening of the chilled water valve to an appropriate value
and ensure that no leakage exists. Confirm the setting and exit diagnostic mode.
Step 8 Tap Maint > Perform Maint on the home screen and clear the chilled water valve runtime.
----End
5.2.13 Replacing a Float
Prerequisites
The float needs to be replaced.
The spare and functional air filters are available.
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