Huawei NetCol5000-C Series User Manual page 140

NetCol5000-C(065, 080) In-row Chilled Water Smart
Cooling Product
User Manual
Alarm
ID
A042-01
A044-01
A048-01
Issue 07 (2020-03-16)
Alarm Alarm
Name Severit
y
alarm
Remote Major
shutdown
alarm
Smoke Critical
sensor
alarm
Supply air Critical
high
temperatur
e alarm
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Impact Possible Cause
1. The remote
An
shutdown dry
alarm is
contact is
triggere
triggered.
d, and
the 2. The cables to the
smart remote shutdown
cooling dry contact are
product loose or
is shut damaged.
down.
1. Smoke is
An
generated in the
alarm is
equipment room.
triggere
d, and 2. The cables to the
the smoke sensor are
smart loose or
cooling damaged.
product
3. The smoke
is shut
sensor is faulty.
down.
1. The temperature
An
sensors or
alarm is
temperature and
triggere
humidity sensors
d.
are located in
inappropriate
positions.
2. The thermal load
power is high or
the cooling
capacity is
insufficient.
3. The ambient
temperature
exceeds the
upper threshold.
4. The high
temperature
alarm threshold
is inappropriate.
5. The value
detected by the
temperature
sensor or
temperature and
humidity sensor
Solution
1. Check the status
of the remote
shutdown dry
contact.
2. Check the cables
to the remote
shutdown dry
contact.
1. Expel smoke
from the
equipment room
and reset the
smoke sensor.
2. Check the cables
to the smoke
sensor.
3. Maintain or
replace the
smoke sensor.
1. Adjust the
positions of the
temperature
sensors or
temperature and
humidity
sensors.
2. Add smart
cooling products
or contact
Huawei technical
support.
3. Measure the
ambient
temperature.
Check whether
other causes
exist if the alarm
persists in a long
time after
startup.
4. Adjust the high
temperature
alarm threshold.
5. Calibrate or
replace the
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