Huawei NetCol8000-A013 User Manual page 109

NetCol8000-A013 In-room Air Cooled Smart Cooling
Product
User Manual (600 mm Width)
Alarm Alarm Name
ID
724 Condensation
Temp sensor fault
801 Return Air High
Temp Alarm
802 Return Air Low
Temp Alarm
Issue 02 (2020-11-09)
System Possible Causes
Action
-- 1. The temperature
2. The temperature
-- 1. The heat load is
2. The return air
3. The ambient
4. The return air high
5. The temperature
-- 1. The heat load is low
2. The ambient
3. The return air low
4. The temperature
Copyright © Huawei Technologies Co., Ltd.
5 System Operation and Maintenance
sensor cable is not
properly connected.
sensor is faulty.
high, or the cooling
capacity is
insufficient.
temperature is high
shortly after the
unit is started.
temperature
exceeds the upper
threshold.
temperature alarm
threshold is
inappropriate for
the working
conditions.
displayed by the
temperature sensor
is different from the
actual temperature.
or the cooling
capacity is too high.
temperature is too
low.
temperature alarm
threshold is
inappropriate for
the working
conditions.
displayed by the
temperature sensor
is different from the
actual temperature.
Solution
1. Check the cable
connection to the
temperature sensor.
2. Maintain or replace
the temperature
sensor.
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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