Huawei NetCol8000-E220 User Manual page 139

NetCol8000-E220 Modular Indirect Evaporative Cooling
System
User Manual
Alarm Alarm
ID Severity
A094- WARNIN
01 G
A105- CRITICA
01 L
A105- CRITICA
01 L
A118- MAJOR
01
A118- MAJOR
01
A118- MAJOR
02
A120-
MAJOR
01
Issue 02 (2019-10-10)
Alarm
Probable Cause
Name
alarm the upper threshold.
3. The temperature and humidity
sensor is not installed in a proper
position.
4. The high humidity alarm
threshold is inappropriate.
5. The value detected by the
temperature and humidity sensor is
different from the actual value.
Low humidity 1. The ambient humidity is below
alarm the lower threshold.
2. The temperature and humidity
sensor is not installed in a proper
position.
3. The low humidity alarm
threshold is inappropriate.
4. The value detected by the
temperature and humidity sensor is
different from the actual value.
Indoor fan 1. The accumulated runtime of the
failure alarm fan exceeds the alarm threshold.
2. The cable to the fan is not
connected properly.
3. The power supply to the fan is
abnormal.
Exhaust fan 1. The fan is faulty.
function
2. The cable to the fan is not
failure alarm
connected properly.
3. The power supply to the fan is
abnormal.
Backup The power supply is faulty.
power failure
alarm
Primary The power supply is faulty.
power failure
alarm
Primary The power supply is faulty.
power failure
alarm
Indoor fan 1 1. The communications cable to the
communicatio fan is not connected properly.
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6 System Operation and Maintenance
Solution
2. Measure the ambient
humidity.
3. Adjust the position of the
temperature and humidity
sensor.
4. Adjust the high humidity
alarm threshold.
5. Calibrate or replace the
temperature and humidity
sensors.
1. Measure the ambient
humidity.
2. Adjust the position of the
temperature and humidity
sensor.
3. Adjust the low humidity
alarm threshold.
4. Calibrate or replace the
temperature and humidity
sensors.
1. Maintain or replace the fan,
and clear the accumulated
runtime.
2. Check the cable connection to
the fan.
3. Check the power supply to
the fan.
1. Maintain or replace the fan.
2. Check the cable connection to
the fan.
3. Check the power supply to
the fan.
1. Check the power supply.
1. Check the power supply.
1. Check the power supply.
1. Check the communications
cable connection to the fan.
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