Semi-Annual Maintenance - Huawei Netcol5000-C30 Kw Maintenance And Troubleshooting Manual

Semi-annual Maintenance (1)

Inspection
No.
method
Visual Check that no foreign matter exists in
1
inspection the fan.
Visual
2 Check that the blades are intact.
inspection
Check that no abnormal voice is
Visual
3 generated
inspection
during operation.
Check that the screws are secured
Visual
4 and not
inspection
deformed.
Visual Check that the wiring terminals are
5
inspection secured.
Check and secure all cables and verify
that wiring terminals are secure. For
example,
check that the cable connections from
the
Visual
6 electric control panel to the fan,
inspection
temperature
sensor, water sensor, subrack power
supply,
chilled water valve, and high and low
foat switches are secure.
Copyright © 2017 Huawei Technologies Co., Ltd. All rights reserved.
Operation Troubleshooting
Clean the foreign matters.
Maintain the blades. If the fault is not
rectifed, replace the fan.
Clean the foreign matters, and make
sure that the fan is fxed properly.
Tighten the screws. Replace the screws if
necessary.
Reconnect the cables again.
If a wiring terminal is loose, secure or
replace it promptly.
Page 12