Huawei NetCol5000-C User Manual page 119

NetCol5000-C Chilled Water-Cooled In-Row Precision
Air Conditioner
User Manual
Alarm
Alarm Name
ID
Invalid supply
a096
water temp
a097 Supply water
high temp
a098 Supply water
low temp
a099 Invalid return
water temp
Issue 02 (2013-12-10)
System
Severity
Operation
The alarm is
Major
generated.
Major The alarm is
generated.
Warning The alarm is
generated.
Major The alarm is
generated.
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6 System Operation and Maintenance
Possible Causes
inappropriate
position.
4. The ambient
humidity is low.
1. The supply water
temperature sensor is
faulty.
2. Cables to the supply
water temperature
sensor are loose or
damaged.
1. The supply water
high temperature
alarm set point is
inappropriate for the
working conditions.
2. The temperature
displayed on the LCD
is different from the
actual temperature.
3. Cables to the supply
water temperature
sensor are loose or
damaged.
4. The temperature of
chilled water is
higher than the high
temperature alarm set
point.
1. The supply water low
temperature alarm set
point is inappropriate
for the working
conditions.
2. The temperature
displayed on the LCD
is different from the
actual temperature.
3. The temperature of
chilled water is lower
than the low
temperature alarm set
point.
1. The return water
temperature sensor is
faulty.
2. Cables to the return
water temperature
sensor are loose or
Recovery Measures
1. Maintain or replace
the supply water
temperature sensor.
2. Check cables to the
supply water
temperature sensor.
1. Adjust the supply
water high
temperature alarm
set point.
2. Maintain or replace
the supply water
temperature sensor.
3. Check cables to the
supply water
temperature sensor.
4. Check the
temperature of the
supplied chilled
water.
1. Adjust the supply
water low
temperature alarm
set point.
2. Maintain or replace
the supply water
temperature sensor.
3. Check the
temperature of the
supplied chilled
water.
1. Maintain or replace
the return water
temperature sensor.
2. Check cables to the
return water
temperature sensor.
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