Annual Maintenance; Troubleshooting - Huawei NetCol8000-C190 User Manual

NetCol8000-C190 In-room Chilled Water Smart
Cooling Product
User Manual (2022, Singapore STT)

6.1.3 Annual Maintenance

Table 6-3 Annual Maintenance
Mainte
nance
Item
T/H
sensors
Heat
exchan
ger

6.2 Troubleshooting

Some circuits in the smart cooling product have fatal high voltage. Only
professional technicians are allowed to perform maintenance operations. Exercise
caution during live-line troubleshooting.
If jumpers are used for troubleshooting, remove them after troubleshooting.
Connected jumpers may affect control functions and damage the equipment.
Table 6-4
Table 6-4 NetCol8000-C troubleshooting
Symptom
The sound is
abnormal when
the smart cooling
product is
running.
Issue 02 (2022-03-30)
Operation
(Semiannual
Maintenance)
Check that the
temperature and
humidity readings are
correct as measured.
Check that no foreign
matter exists on the
heat exchanger surface.
CA UTION
NO TICE
describes how to troubleshoot the NetCol8000-C.
Possible Cause
The fan, pipe, or base is
loose, or there is no
shock absorption bar
between the base and
the smart cooling
product.
Copyright © Huawei Technologies Co., Ltd.
Troubleshooting
If the temperature deviation is greater than
1°C or humidity deviation is greater than
5%, calibrate or replace the humidity and
temperature sensor.
Remove foreign matter.
Troubleshooting
Secure the loose components, or
add shock absorption bars
between the base and the smart
cooling product.
6 Maintenance
109