Huawei NetCol8000-E220 User Manual page 141

NetCol8000-E220 Modular Indirect Evaporative Cooling
System
User Manual
Alarm Alarm
ID Severity
A134- MAJOR
01
A172- MAJOR
01
A172- MAJOR
01
A174-
MAJOR
01
A174- MAJOR
01
A174- MAJOR
02
A184- WARNIN
01 G
A184- WARNIN
01 G
A185- WARNIN
01 G
A185- WARNIN
01 G
Issue 02 (2019-10-10)
Alarm
Probable Cause
Name
Compressor 2 1. The cables to the suction
suction temperature sensor are loose or
temperature damaged.
sensor fault
2. The suction temperature sensor is
faulty.
SPD and 1. The communications cable is not
voltage connected properly.
detection
2. The SPD and voltage detection
board comm
board is faulty.
failed
3. The communications port of the
main control board is faulty.
Backup SPD 1. The communications cable is not
and volt connected properly.
detection
2. The SPD and voltage detection
board comm
board is faulty.
failed
3. The communications port of the
main control board is faulty.
SPD function The SPD and voltage detection
failure board is faulty.
Backup SPD The SPD and voltage detection
function board is faulty.
failed
SPD function 1. The SPD is faulty.
failure
2. The cable to the SPD is not
connected properly.
Compressor 1
The compressor is preheating.
preheating
alarm
Compressor 2 The compressor is preheating.
preheating
alarm
Compressor 1
1. Refrigerant has leaked.
Insufficient
2. Refrigerant is not charged as
refrigerant
required in the user manual.
alarm
3. The displayed values of the
liquid pipe temperature sensor or
the condensing pressure sensor on
the LCD are different from the
actual values.
Compressor 2 1. Refrigerant has leaked.
Insufficient
2. Refrigerant is not charged as
refrigerant
required in the user manual.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Solution
1. Check cables to the suction
temperature sensor.
2. Maintain or replace the
suction temperature sensor.
1. Check the communications
cable.
2. Replace the SPD and voltage
detection board.
3. Maintain or replace the main
control board.
1. Check the communications
cable.
2. Replace the SPD and voltage
detection board.
3. Maintain or replace the main
control board.
1. Replace the SPD and voltage
detection board.
1. Replace the SPD and voltage
detection board.
1. Replace the SPD.
2. Check the cable connection to
the SPD.
1. Power on the device after the
compressor has preheated.
1. Power on the device after the
compressor has preheated.
1. Check the system for leaking
points. If so, repair the pipe and
add refrigerant.
2. Add refrigerant as required in
the user manual.
3. Calibrate or replace the liquid
pipe temperature sensor or the
condensing pressure sensor.
1. Check the system for leaking
points. If so, repair the pipe and
add refrigerant.
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