Huawei NetCol5000-C - Page 119

NetCol5000-C Chilled Water-Cooled In-Row Precision
Air Conditioner
User Manual
6 System Operation and Maintenance
Issue 02 (2013-12-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
111
Alarm
ID
Alarm Name
Severity
System
Operation
Possible Causes
Recovery Measures
inappropriate
position.
4. The ambient
humidity is low.
a096
Invalid supply
water temp
Major
The alarm is
generated.
1. The supply water
temperature sensor is
faulty.
2. Cables to the supply
water temperature
sensor are loose or
damaged.
1. Maintain or replace
the supply water
temperature sensor.
2. Check cables to the
supply water
temperature sensor.
a097
Supply water
high temp
Major
The alarm is
generated.
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. 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.
a098
Supply water
low temp
Warning
The alarm is
generated.
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. 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.
a099
Invalid return
water temp
Major
The alarm is
generated.
1. The return water
temperature sensor is
faulty.
2. Cables to the return
water temperature
sensor are loose or
1. Maintain or replace
the return water
temperature sensor.
2. Check cables to the
return water
temperature sensor.