Huawei FusionModule5000

FusionModule5000 Smart Modular Data Center
Maintenance Guide (ECC800)
3 Alarm Reference
Issue 01 (2019-03-05)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
85
Alar
m ID
Alarm
Name
Severit
y
System
Operatio
n
Possible Causes
Recovery Measures
insufficient, or the
supply water temp
is high if cooling
source is CW.
7. The CW valve is
faulty if cooling
source is CW.
7. Maintain or
replace the faulty
CW valve.
a051
Hot-aisl
e HT
Critical
The alarm
is
generated.
The
indoor fan
has the
maximum
output,
and the
electroma
gnetic
valve and
actuator
has 100%
outputs in
automatic
running
mode.
1. The hot-aisle T/H
sensors are located
in inappropriate
position.
2. The ambient temp
is high.
3. The hot-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
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. Adjust the
position of the
hot-aisle T/H
sensors.
2. Check the ambient
temp.
3. Adjust the
hot-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.
7. Maintain or
replace the faulty
CW valve.
a052
Supply-
air temp
invalid
Major
The alarm
is
generated.
1. The cables to the
temperature sensor
are loose or
damaged.
2. The temperature
sensor is faulty.
1. Check the cables
to the temperature
sensor.
2. Maintain or
replace the
temperature
sensor.
a077
Indoor
fan
1/2/3/4/
5/6 fault
Major
The alarm
is
generated.
1. The power supply
to the indoor fan is
abnormal.
2. The cables to the
indoor fan are
loose or damaged.
3. The indoor fan is
faulty.
1. Check the power
supply to the
indoor fan.
2. Check the cables
to the indoor fan.
3. Maintain or
replace the indoor
fan.