Huawei NetCol5000-C User Manual page 118

NetCol5000-C Chilled Water-Cooled In-Row Precision
Air Conditioner
User Manual
Alarm
Alarm Name
ID
a092 Hot aisle LT
a093 High humidity
a094 Low humidity
Issue 02 (2013-12-10)
System
Severity
Operation
Warning The alarm is
generated.
Warning The alarm is
generated.
Warning The alarm is
generated.
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6 System Operation and Maintenance
Possible Causes
is different from the
actual temperature.
3. The chilled water
valve is faulty.
4. The ambient
temperature is low.
1. The low temperature
alarm set point for the
hot aisle is
inappropriate for the
working conditions.
2. The temperature
displayed on the LCD
is different from the
actual temperature.
3. The chilled water
valve is faulty.
4. The ambient
temperature is low.
1. The high humidity
alarm set point is
inappropriate for the
working conditions.
2. The humidity
detected by
temperature and
humidity sensor is
higher than the actual
value.
3. The temperature and
humidity sensor is
located in an
inappropriate
position.
4. The ambient
humidity is high.
1. The low humidity
alarm set point is
inappropriate for the
working conditions.
2. The humidity
detected by
temperature and
humidity sensor is
lower than the actual
value.
3. The temperature and
humidity sensor is
located in an
Recovery Measures
the chilled water
valve.
4. Check the ambient
temperature.
1. Adjust the low
temperature alarm
set point for the hot
aisle.
2. Maintain or replace
the temperature and
humidity sensor.
3. Maintain or replace
the chilled water
valve.
4. Check the ambient
temperature.
1. Adjust the high
humidity alarm set
point.
2. Maintain or replace
the temperature and
humidity sensor.
3. Adjust the position
of the temperature
and humidity sensor.
4. Check the ambient
humidity.
1. Adjust the low
humidity alarm set
point.
2. Maintain or replace
the temperature and
humidity sensor.
3. Adjust the position
of the temperature
and humidity sensor.
4. Check the ambient
humidity.
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