Huawei NetCol5000-A User Manual page 177

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm)
Alar Alarm
Alarm
m Severit
ID y
a051 Hot-aisl Critical
e HT
a052 Supply- Major
air 1
temp
invalid
Supply-
air 2
temp
invalid
Supply-
air 3
temp
invalid
a055 Dischar Major
ge temp
sensor
fault
a056 Dischar Major
ge
pressure
sensor
fault
Issue 13 (2019-01-15)
Default
Impact
Value
45° C The alarm
is
generated
, and the
rotational
speed of
the
compress
or
increases.
N/A The alarm
is
generated
.
N/A The alarm
is
generated
.
N/A The alarm
is
generated
.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Cause
1. The hot-aisle T/H
sensors are located in
inappropriate position.
2. The ambient temp is
high.
3. The hot-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.
1. The cables to the temp
sensor are loose or
damaged.
2. The temp sensor is
faulty.
1. The cables to the temp
sensor are loose or
damaged.
2. The temp sensor is
faulty.
1. The cables to the press
sensor are loose or
damaged.
2. The press sensor is
faulty.
Solution
1. Adjust the position of
the hot-aisle T/H
sensors.
2. Check the ambient
temp.
3. Adjust the hot-aisle
HT alarm thres.
4. Calibrate or replace
the abnormal T/H
sensors.
5. Add more smart
cooling product units.
1. Check the cables to the
temp sensor.
2. Maintain or replace the
temp sensor.
1. Check the cables to the
temp sensor.
2. Maintain or replace the
temp sensor.
1. Check the cables to the
press sensor.
2. Replace the press
sensor.
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