Huawei NetCol5000-C Series User Manual page 158

NetCol5000-C030 In-row Chilled Water Smart Cooling
Product
User Manual (Simple Configuration)
Alarm Alarm Name
ID
a052 Supply-air
temp invalid
a053 PSU 1/2 fault
a054 PSU 1/2
comm
interrupt
a076 Humidifier
alarm
a077 Indoor fan
1/2/3/4/5/6
fault
a078 Full water
Issue 09 (2020-01-10)
Severity System
Operation
Major The alarm is
generated.
Major The alarm is
generated.
Major The alarm is
generated.
Major The alarm is
generated.
Major The alarm is
generated.
Critical The alarm is
generated, and
the
NetCol5000-C
shuts down.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes
7. The CW valve is
faulty if cooling
source is CW.
1. The cables to the
temperature sensor
are loose or
damaged.
2. The temperature
sensor is faulty.
The PSU is faulty.
1. The
communication
cables of the PSU
are faulty.
2. The PSU is faulty.
3. The
communication
port of the control
board is faulty.
1. Water of the
humidifier is
insufficient.
2. The humidifier is
faulty.
3. The cables to the
humidifier are
loose or damaged.
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. The cables to the
high float are loose
or damaged.
2. The high float is
faulty or stuck.
3. The condensate
pump is faulty, or
the drainage
capability
decreases if
configured.
4. The drainpipe of
Recovery Measures
1. Check the cables to
the temperature
sensor.
2. Maintain or replace
the temperature
sensor.
Maintain or replace the
PSU.
1. Check the
communication
cables of the PSU.
2. Maintain or replace
the PSU.
3. Maintain or replace
the control board.
1. Solve the water
insufficiency
problem.
2. Maintain or replace
the humidifier.
3. Check the cables to
the humidifier.
1. Check the power
supply to the indoor
fan.
2. Check the cables to
the indoor fan.
3. Maintain or replace
the indoor fan.
1. Check the cables to
the high float.
2. Maintain or replace
the high float or
clear the obstacles.
3. Maintain or replace
the condensate
pump.
4. Clear the obstacles
in the drainpipe of
the condensate
pump.
149