Huawei NetCol5000-C Series User Manual page 162

NetCol5000-C030 In-row Chilled Water Smart Cooling
Product
User Manual (Simple Configuration)
Alarm Alarm Name
ID
a094 Low humidity
a096 Supply-water
temp invalid
a097 Supply-water
HT
a098 Supply-water
LT
Issue 09 (2020-01-10)
Severity System
Operation
Warning The alarm is
generated.
Major The alarm is
generated.
Major The alarm is
generated. In
automatic mode,
the indoor fan
has the
maximum output
and the chilled
water valve has
the 100% output.
Warning The alarm is
generated.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes
position.
3. The ambient
humidity is high.
4. The high humidity
alarm threshold is
inappropriate.
5. The humidity
displayed is
different from the
actual humidity.
1. The T/H sensors
are located in
inappropriate
position.
2. The ambient
humidity is low.
3. The low humidity
alarm threshold is
inappropriate.
4. The humidity
displayed is
different from the
actual humidity.
1. The cables to the
temperature sensor
are loose or
damaged.
2. The temperature
sensor is faulty.
1. The temp of CW is
higher than the
supply-water HT
alarm threshold.
2. The supply-water
HT alarm
threshold is
inappropriate.
3. The supply water
temp displayed is
different from the
actual temp.
1. The temp of CW is
lower than the
supply-water LT
alarm threshold.
2. The supply-water
HT alarm
threshold is
inappropriate.
Recovery Measures
of the T/H sensors.
3. Check the ambient
humidity.
4. Adjust the high
humidity alarm
threshold.
5. Calibrate or replace
the abnormal T/H
sensors.
1. Adjust the position
of the T/H sensors.
2. Check the ambient
humidity.
3. Adjust the low
humidity alarm
threshold.
4. Calibrate or replace
the abnormal T/H
sensors.
1. Check the cables to
the temperature
sensor.
2. Maintain or replace
the temperature
sensor.
1. Check the temp of
supplied CW.
2. Adjust the
supply-water HT
alarm threshold.
3. Calibrate or replace
the supply water
temp sensor.
1. Check the temp of
supplied CW.
2. Adjust the
supply-water LT
alarm threshold.
3. Calibrate or replace
the supply water
temp sensor.
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