Huawei FusionModule5000 Maintenance Manual page 92

FusionModule5000 Smart Modular Data Center
Maintenance Guide (ECC800)
Alar
m ID
a049
a050
Issue 01 (2019-03-05)
Alarm Severit System
Name y Operatio
n
running
mode.
Supply- Warnin The alarm
air LT g is
generated.
Cold-ai Critical The alarm
sle HT is
generated.
The
indoor fan
has the
maximum
output,
and the
CW value
has 100%
outputs in
automatic
running
mode.
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Possible Causes
inappropriate.
5. The temp
displayed is
different from the
actual temp.
6. CW flow is
insufficient, or the
supply water temp
is high if cooling
source is CW.
7. The CW valve is
faulty if cooling
source is CW.
1. The load is low.
2. The ambient temp
is low.
3. The supply-air LT
alarm threshold is
inappropriate.
4. The temp
displayed is
different from the
actual temp.
5. The air filters are
blocked.
6. The CW valve is
faulty if cooling
source is CW.
1. The cold-aisle T/H
sensors are located
in inappropriate
position.
2. The ambient temp
is high.
3. The cold-aisle HT
alarm threshold is
inappropriate.
4. The temp
displayed is
different from the
actual temp.
5. The load is high or
the refrigeration
capacity is
insufficient.
6. CW flow is
3 Alarm Reference
Recovery Measures
abnormal sensors.
6. Check the press
and the temp of
CW.
7. Maintain or
replace the faulty
CW valve.
1. Please consult
Huawei technical
support.
2. Check the ambient
temp.
3. Adjust the
supply-air LT
alarm threshold.
4. Calibrate or
replace the
abnormal sensors.
5. Maintain or
replace the air
filters.
6. Maintain or
replace the faulty
CW valve.
1. Adjust the
position of the
cold-aisle T/H
sensors.
2. Check the ambient
temp.
3. Adjust the
cold-aisle HT
alarm threshold.
4. Calibrate or
replace the
abnormal T/H
sensors.
5. Add more air
conditioner units.
6. Check the press
and the temp of
CW.
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