Huawei NetCol5000-A035 User Manual page 171

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm Width)
Al
ar
m
ID
a0
02
a0
03
a0
04
Issue 17 (2020-10-22)
Alar Alar Defau
m m lt
Seve Value
rity
Retur Critic 45°C
n-air al
HT
Retur Warn 15°C
n air ing
LT
Retur Majo N/A
n-air r
3
humi
d
invali
d
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Impac Possible Cause
t
The 1. The load is high
alarm or the
is refrigeration
genera capacity is
ted, insufficient.
and
2. The return air
the
temp is higher
rotatio
than the return-
nal
air HT alarm
speed
thres during
of the
startup.
compr
3. The ambient
essor
temp is high.
increas
4. The return-air
es.
HT alarm thres is
inappropriate.
5. The temp
displayed is
different from
the actual temp.
The 1. The load is low.
alarm
2. The ambient
is
temp is low.
genera
3. The return-air LT
ted.
alarm thres is
inappropriate.
4. The temp
displayed is
different from
the actual temp.
The 1. The cables to the
alarm temp sensor are
is loose or
genera damaged.
ted.
2. The temp sensor
is faulty.
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
return-air HT
alarm thres.
5. Calibrate or
replace the
abnormal temp
sensors.
1. Please consult
Huawei
technical
support.
2. Check the
ambient temp.
3. Adjust the
return-air LT
alarm thres.
4. Calibrate or
replace the
abnormal temp
sensors.
1. Check the
cables to the
temp sensor.
2. Maintain or
replace the
temp sensor.
161