Huawei NetCol5000-C Series User Manual page 141

NetCol5000-C(065, 080) In-row Chilled Water Smart
Cooling Product
User Manual
Alarm
ID
A049-01
A050-01
Issue 07 (2020-03-16)
Alarm Alarm
Name Severit
y
Supply air Warnin
g
low
temperatur
e alarm
Cold aisle Critical
high
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Impact Possible Cause
is different from
the actual value.
6. The chilled water
flow is
insufficient, or
the supply water
temperature is
high.
7. The chilled water
valve is stuck or
faulty.
1. The temperature
An
sensors or
alarm is
temperature and
triggere
humidity sensors
d.
are located in
inappropriate
positions.
2. The thermal load
power is low.
3. The ambient
temperature is
below the lower
threshold.
4. The low
temperature
alarm threshold
is inappropriate.
5. The value
detected by the
temperature
sensor or
temperature and
humidity sensor
is different from
the actual value.
6. The air filters are
blocked.
7. The chilled water
valve is stuck or
faulty.
1. The temperature
An
sensors or
alarm is
Solution
temperature
sensor or
temperature and
humidity sensor.
6. Check the
pressure and
temperature of
chilled water.
7. Maintain or
replace the
chilled water
valve.
1. Adjust the
positions of the
temperature
sensors or
temperature and
humidity
sensors.
Step2.Contact
Huawei technical
support.
2. Measure the
ambient
temperature.
Check whether
other causes
exist if the alarm
persists in a long
time after
startup.
3. Adjust the low
temperature
alarm threshold.
4. Calibrate or
replace the
temperature
sensor or
temperature and
humidity sensor.
5. Maintain or
replace the air
filters.
6. Maintain or
replace the
chilled water
valve.
1. Adjust the
positions of the
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