Huawei NetCol8000-C070 User Manual page 151

NetCol8000-C(070, 130, 190) In-room Chilled Water
Smart Cooling Product
User Manual
Maintenanc
e Item
Chilled
water pipe
Differential
pressure
sensor
Motorized
Damper/
Gravity
Damper
Direct free-
cooling
plenum
Cap
Issue 09 (2022-12-15)
Operation (Based on
Monthly Maintenance)
Check that the thermal
insulation foam on the
chilled water pipe is
intact.
Check that the pipe
support is intact and
securely installed.
Check that pipes do not
leak.
Check that the smart
cooling product drainpipe
is free from leaks and
blockages.
Check that the pressure
inlet tube is not blocked
or over-bent.
Check that cables to the
differential pressure
sensor are securely
connected.
(Applicable to motorized
damper) Check that
cables to the actuator are
securely connected.
Check that the damper is
securely fixed.
Check that cables to the
actuator are securely
connected.
Check that the damper is
securely fixed.
Check that the pressure
inlet tube is not blocked
or over-bent.
Check that cables to the
differential pressure
switch are securely
connected.
Check that the cap is
reliably secured.
Copyright © Huawei Digital Power Technologies Co., Ltd.
Troubleshooting
Rewrap the thermal insulation foam.
Secure the base.
Close the water inlet stop valve and
repair leaks.
If the drainpipe leaks, repair the
leaks. If the drainpipe is blocked,
clear the blockage inside the pipe.
Reinstall the pressure inlet tube.
Reconnect the cables.
Reconnect the cables.
Fix the damper again.
Reconnect the cables.
Fix the damper again.
Reinstall the pressure inlet tube.
Reconnect the cables.
Tighten the cap again.
6 Maintenance
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