Huawei NetCol8000-E220 User Manual page 153

NetCol8000-E220 Modular Indirect Evaporative Cooling
System
User Manual
Alarm Alarm
ID Severity
A282- CRITICA
02 L
A282-
MAJOR
02
A282- CRITICA
04 L
A282- MAJOR
04
A282- CRITICA
08 L
A282- MAJOR
08
A282- CRITICA
10 L
A282- MAJOR
10
A28B- CRITICA
01 L
Issue 02 (2019-10-10)
Alarm
Probable Cause
Name
Power phase 1. The phase sequence of the power
sequence supply is incorrect.
abnormal
2. The SPD and voltage detection
board is faulty.
Backup 1. The phase sequence of the power
power phase supply is incorrect.
sequence
2. The SPD and voltage detection
abnormal
board is faulty.
Power phase 1. The power grid is unstable.
sequence
2. The phase A input cable is faulty.
abnormal
Backup 1. The power grid is unstable.
power phase
2. The phase A input cable is faulty.
sequence
abnormal
Power phase
1. The power grid is unstable.
sequence
2. The phase B input cable is faulty.
abnormal
Backup 1. The power grid is unstable.
power phase
2. The phase B input cable is faulty.
sequence
abnormal
Power phase 1. The power grid is unstable.
sequence
2. The phase C input cable is faulty.
abnormal
Backup 1. The power grid is unstable.
power phase
2. The phase C input cable is faulty.
sequence
abnormal
Comp 1 high 1. The refrigerant leaks.
discharge
2. The condenser fins are dirty or
temperature
blocked.
alarm
3. The ambient temperature exceeds
the upper threshold.
4. The temperature displayed by the
exhaust air temperature sensor is
different from the actual
temperature.
5. The exhaust air temperature
sensor is faulty.
6. The input power of the outdoor
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Solution
detection board.
1. Rectify the phase sequence of
the power supply.
2. Maintain or replace the SPD
and voltage detection board.
1. Rectify the phase sequence of
the power supply.
2. Maintain or replace the SPD
and voltage detection board.
1. Check the power grid.
2. Rectify the fault of the phase
A input cable.
1. Check the power grid.
2. Rectify the fault of the phase
A input cable.
1. Check the power grid.
2. Rectify the fault of the phase
B input cable.
1. Check the power grid.
2. Rectify the fault of the phase
B input cable.
1. Check the power grid.
2. Rectify the fault of the phase
C input cable.
1. Check the power grid.
2. Rectify the fault of the phase
C input cable.
1. Identify and repair the leaking
point, and refill refrigerant after
maintenance.
2. Clean the condenser fins.
3. Measure the ambient
temperature.
4. Calibrate or replace the
temperature sensor.
5. Maintain or replace the
temperature sensor.
6. Check the input power of the
outdoor unit.
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