Huawei NetCol8000-E220 User Manual page 152

NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
Alar
m ID
A007
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A015
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A015
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A018
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A018
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Issue 06 (2020-08-19)
Alarm Alarm Name
Severit
y
MAJOR Outdoor
intake air 1
T/H sensor
communicatio
n failed
WARNI Compressor 1
NG exceed
runtime
alarm
WARNI Compressor 2
NG exceed
runtime
alarm
WARNI Indoor fan 1
NG exceed
runtime
alarm
WARNI Indoor fan 2
NG exceed
runtime
alarm
WARNI Indoor fan 3
NG exceed
runtime
alarm
WARNI Indoor fan 4
NG exceed
runtime
alarm
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Probable Cause
1. The cables to the
temperature and
humidity sensor are
loose or damaged.
2. The DIP switch of
the temperature
and humidity sensor
is set incorrectly.
3. The temperature
and humidity sensor
is faulty.
4. The
communications
port of the main
control board is
faulty.
The accumulated
runtime of the
compressor exceeds
the alarm threshold.
The accumulated
runtime of the
compressor exceeds
the alarm threshold.
The accumulated
runtime of the fan
exceeds the alarm
threshold.
The accumulated
runtime of the fan
exceeds the alarm
threshold.
The accumulated
runtime of the fan
exceeds the alarm
threshold.
The accumulated
runtime of the fan
exceeds the alarm
threshold.
Solution
1. Check the cables to
the temperature and
humidity sensor.
2. Set the DIP switch of
the temperature and
humidity sensor
correctly.
3. Maintain or replace
the temperature and
humidity sensor.
4. Maintain or replace
the main control
board.
1. Maintain or replace
the compressor and
clear the accumulated
runtime.
1. Maintain or replace
the compressor and
clear the accumulated
runtime.
1. Maintain or replace
the fan, and clear the
accumulated runtime.
1. Maintain or replace
the fan, and clear the
accumulated runtime.
1. Maintain or replace
the fan, and clear the
accumulated runtime.
1. Maintain or replace
the fan, and clear the
accumulated runtime.
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