Huawei NetCol5000-C Series User Manual page 154

NetCol5000-C030 In-row Chilled Water Smart Cooling
Product
User Manual (Simple Configuration)
Alarm Alarm Name
ID
a026 Air filter
exceed
runtime
a027 Power loss
a039 Ctrl point
sensor
disabled
a040 PSU 1/2
power input
failure
a041 Cond pump
1/2 fault
Issue 09 (2020-01-10)
Severity System
Operation
humidification
functions.
Warning The alarm is
generated.
Warning The alarm is
generated.
Major The alarm is
generated.
Warning The alarm is
generated.
Major The alarm is
generated.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes
faulty.
3. The differential
press switch is set
inappropriately.
4. The pressure inlet
tube of the
differential
pressure switch is
blocked or
disconnected.
5. The cables to the
differential press
switch are loose or
damaged.
The accumulated
runtime of air filter
exceeds the alarm
threshold.
The supply power is
cut off.
All the T/H sensors of
the control point are
disabled.
The power input
cables of the PSU are
loose or damaged.
1. The cables to the
condensate pump
are loose or
damaged.
2. The condensate
pump is faulty.
3. The fuse or relay
of the condensate
pump is faulty.
4. The drainage
capacity of the
condensate pump
decreases, or the
drainpipe is
blocked.
5. The condensate
pump is blocked.
Recovery Measures
switch.
3. Adjust the threshold
of the differential
press switch.
4. Maintain or replace
the press tube.
5. Check the cables to
the differential press
switch.
Maintain or replace the
air filter and clear the
accumulated runtime.
Check the power supply
cables.
Enable the T/H sensors
of the control point or
change the control
point.
Check the power input
cables of the PSU.
1. Check the cables to
the condensate
pump.
2. Replace the
condensate pump.
3. Replace the fuse or
relay of the
condensate pump.
4. Replace the
condensate pump or
remove dirt from the
drainpipe.
5. Replace the
condensate pump,
and clean the water
pan and water pan
filter.
After the fault is solved,
tap Maint >
Performance Maint on
145