Huawei NetCol5000-C - Page 113

NetCol5000-C Chilled Water-Cooled In-Row Precision
Air Conditioner
User Manual
6 System Operation and Maintenance
Issue 02 (2013-12-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
105
Alarm
ID
Alarm Name
Severity
System
Operation
Possible Causes
Recovery Measures
actual temperature.
3. The chilled water
valve is faulty.
4. The ambient
temperature is low.
the chilled water
valve.
4. Check the ambient
temperature.
a018
Indoor fan
1/2/3/4/5/6/7/
8 exceed
runtime
Warning
The alarm is
generated.
The accumulated runtime
of indoor fan exceeds the
alarm set point.
Maintain or replace
indoor fan.
a025
Air filter
blocked
Warning
The alarm is
generated.
1. The air filters are
blocked.
2. Cables to the
differential pressure
switch are loose or
damaged.
3. The differential
pressure switch is
faulty.
4. The differential
pressure tube is
blocked.
1. Clean or replace air
filters.
2. Check cables to the
differential pressure
switch.
3. Replace the
differential pressure
switch.
4. Check the
differential pressure
tube.
a026
Air filter
exceed
runtime
Warning
The alarm is
generated.
The accumulated runtime
of the air filters exceeds
the alarm set point.
Maintain or replace the
air filters.
a027
Power loss
Warning
The alarm is
generated.
The NetCol5000-C is
disconnected.
No recovery measure is
required.
a041
Cond pump
1/2 fault
Major
The alarm is
generated.
1. Condensate pump is
faulty.
2. The fuse or relay of
condensate pump is
faulty.
3. The drainage capacity
of condensate pump 1
decreases, or the
drainpipe is blocked.
4. Cables to condensate
pump 1 are loose or
damaged.
1. Replace condensate
pump.
2. Replace the fuse or
relay of condensate
pump.
3. Check cables to
condensate pump.
4. Remove dirt from
the drainpipe.
a042
Remote
shutdown
Critical
The alarm is
generated, and
the
NetCol5000-C
shuts down.
1. The remote shutdown
switch is triggered.
2. The remote shutdown
switch is faulty, or
cables to the remote
shutdown switch are
loose or damaged.
1. Check the status of
the remote shutdown
switch.
2. Reconnect the
remote shutdown
switch and cables to
the remote shutdown
switch.