Huawei NetCol5000-A User Manual page 176

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm)
Alar Alarm
Alarm
m Severit
ID y
a048 Supply- Critical
air HT
a049 Supply- Warnin
air LT g
a050 Cold-ai Critical
sle HT
Issue 13 (2019-01-15)
Default
Impact
Value
40° C The alarm
is
generated
, and the
rotational
speed of
the
compress
or
increases.
5° C The alarm
is
generated
.
40° C The alarm
is
generated
, and the
rotational
speed of
the
compress
or
increases.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Cause
1. The load is high, or the
refrigeration capacity is
insufficient.
2. The supply air temp is
higher than the
supply-air HT alarm
thres during startup.
3. The ambient temp is
high.
4. The supply-air HT
alarm thres is
inappropriate.
5. The temp displayed is
different from the
actual temp.
1. The load is low.
2. The ambient temp is
low.
3. The supply-air LT
alarm thres is
inappropriate.
4. The temp displayed is
different from the
actual temp.
5. The air filters are
blocked.
1. The cold-aisle T/H
sensors are located in
inappropriate position.
2. The ambient temp is
high.
3. The cold-aisle HT
alarm thres is
inappropriate.
4. The temp displayed is
different from the
actual temp.
5. The load is high or the
refrigeration capacity is
insufficient.
Solution
1. Add more smart
cooling product units.
2. Check other causes if
the alarm persists after
startup.
3. Check the ambient
temp.
4. Adjust the supply-air
HT alarm thres.
5. Calibrate or replace
the abnormal sensors.
1. Please consult Huawei
technical support.
2. Check the ambient
temp.
3. Adjust the supply-air
LT alarm thres.
4. Calibrate or replace
the abnormal sensors.
5. Maintain or replace the
air filters.
1. Adjust the position of
the cold-aisle T/H
sensors.
2. Check the ambient
temp.
3. Adjust the cold-aisle
HT alarm thres.
4. Calibrate or replace
the abnormal T/H
sensors.
5. Add more smart
cooling product units.
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