Huawei NetCol8000-A013 User Manual page 115

NetCol8000-A013 In-room Air Cooled Smart Cooling
Product
User Manual (600 mm Width)
Alarm Alarm Name
ID
801 Return Air High
Temp Alarm
802 Return Air Low
Temp Alarm
Issue 04 (2022-11-25)
System
Action
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Copyright © Huawei Digital Power Technologies Co., Ltd.
5 System Operation and Maintenance
Possible Causes
1. The heat load is
high, or the cooling
capacity is
insufficient.
2. The return air
temperature is high
shortly after the
unit is started.
3. The ambient
temperature
exceeds the upper
threshold.
4. The return air high
temperature alarm
threshold is
inappropriate for
the working
conditions.
5. The temperature
displayed by the
temperature sensor
is different from the
actual temperature.
1. The heat load is low
or the cooling
capacity is too high.
2. The ambient
temperature is too
low.
3. The return air low
temperature alarm
threshold is
inappropriate for
the working
conditions.
4. The temperature
displayed by the
temperature sensor
is different from the
actual temperature.
Solution
1. Add smart cooling
products.
2. Check whether
other causes exist if
the alarm is not
cleared in a long
time after startup.
3. Check the ambient
temperature.
4. Adjust the return air
high temperature
alarm threshold.
5. Calibrate or replace
the temperature
sensor.
1. Reduce the number
of smart cooling
products.
2. Check the ambient
temperature.
3. Adjust the return air
low temperature
alarm threshold.
4. Calibrate or replace
the temperature
sensor.
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