Huawei NetCol8000-C070 User Manual page 152

NetCol8000-C(070, 130, 190) In-room Chilled Water
Smart Cooling Product
User Manual
Alar
m ID
A098
A105
A118
A172
A174
Issue 02 (2020-08-30)
Alarm Alarm Possible Cause
Name Severi
ty
Supply- Warni 1. The temperature of
water ng chilled water is lower
low than the supply water
temperat low temperature alarm
ure threshold.
alarm
2. The supply water low
temperature alarm
threshold is
inappropriate.
3. The supply water
temperature displayed is
different from the actual
temperature.
Indoor Critica 1. The indoor fan is
fan l faulty.
failure
2. The cable to the
alarm
Indoor fan is not
connected properly.
3. The power supply to
the Indoor fan is
abnormal.
Backup Major The power supply is
power faulty.
failure
alarm
Primary Major The power supply is
power faulty.
failure
alarm
SPD and Major 1. The communications
voltage cable is not connected
detection properly.
board
2. The SPD and voltage
comm
detection board is faulty.
failed
3. The communications
port of the main control
board is faulty.
SPD Major The SPD and voltage
function detection board is faulty.
failure
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Solution
1. Check the
temperature of
supplied chilled water.
2. Adjust the supply
water low temperature
alarm threshold.
3. Calibrate or replace
the supply water
temperature sensor.
1. Maintain or replace
the Indoor fan.
2. Check the cable
connection to the
Indoor fan.
3. Check the power
supply to the Indoor
fan.
Check the power
supply.
Check the power
supply.
1. Check the
communications cable.
2. Replace the SPD and
voltage detection
board.
3. Maintain or replace
the main control
board.
Replace the SPD and
voltage detection
board.
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