Alarm ID
Alarm Name
Alarm
Severity
Possible Cause
Solution
A044-01
Smoke sensor alarm
Critical
● Smoke is generated
in the equipment
room.
● The cables to the
smoke sensor are
loose or damaged.
● The smoke sensor
is faulty.
1. Expel smoke from
the equipment
room and reset the
smoke sensor.
2. Check the cables to
the smoke sensor.
3. Maintain or replace
the smoke sensor.
A048-01
Supply air high
temperature alarm
Critical
● The temperature
sensors or
temperature and
humidity sensors
are located in
inappropriate
positions.
● The thermal load
power is high or
the cooling
capacity is
insufficient.
● The ambient
temperature
exceeds the upper
threshold.
● The high
temperature alarm
threshold is
inappropriate.
● The value detected
by the temperature
sensor or
temperature and
humidity sensor is
different from the
actual value.
● The chilled water
flow is insufficient,
or the supply water
temperature is
high.
● The chilled water
valve is stuck or
faulty.
1. Adjust the positions
of the temperature
sensors or
temperature and
humidity sensors.
2. Add air
conditioners or
contact Huawei
technical support
3. Measure the
ambient
temperature. Check
whether other
causes exist if the
alarm persists in a
long time after
startup.
4. Adjust the high
temperature alarm
threshold.
5. Calibrate or replace
the temperature
sensor or
temperature and
humidity sensor.
6. Check the pressure
and temperature of
chilled water.
7. Maintain or replace
the chilled water
valve.
NetCol8000-C(070, 130, 190) In-room Chilled Water
Smart Cooling Product
User Manual
6 Maintenance
Issue 07 (2021-12-30)
Copyright © Huawei Technologies Co., Ltd.
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