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NetCol8000-C(070-260) In-room Chilled Water Smart
Cooling Product
User Manual
Alarm ID
Alarm Name
A077-02
Indoor fan 1
fault
Indoor fan 2
fault
Indoor fan 3
fault
Issue 06 (2020-01-13)
Alarm
Impact
Severity
Major
An alarm is
triggered, and
the
corresponding
fan is shut
down.
Major
An alarm is
triggered, and
the
corresponding
fan is shut
down.
Major
An alarm is
triggered, and
the
corresponding
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible
Solution
Cause
3. The ambient
3. Measure the
temperature
ambient
exceeds the
temperature.
upper
Check
threshold.
whether
other causes
4. The high
exist if the
temperature
alarm
alarm
persists in a
threshold is
long time
inappropriat
after startup.
e.
4. Adjust the
5. The value
high
detected by
temperature
the
alarm
temperature
threshold.
sensor or
temperature
5. Calibrate or
and
replace the
humidity
temperature
sensor is
sensor or
different
temperature
from the
and
actual value.
humidity
sensor.
6. The chilled
water flow is
6. Check the
insufficient,
pressure and
or the supply
temperature
water
of chilled
temperature
water.
is high.
7. Maintain or
7. The chilled
replace the
water valve
chilled water
is stuck or
valve.
faulty.
The indoor fan
Maintain or
is faulty.
replace the
indoor fan.
The indoor fan
Maintain or
is faulty.
replace the
indoor fan.
The indoor fan
Maintain or
is faulty.
replace the
indoor fan.
206
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