Huawei NetCol8000-E220 User Manual page 146

NetCol8000-E220 Modular Indirect Evaporative Cooling
System
User Manual
Alarm Alarm
ID Severity
A26B- MAJOR
04
A26B- MAJOR
04
A26B- MAJOR
04
A272- MAJOR
01
A272- MAJOR
02
A279- CRITICA
01 L
A279- CRITICA
01 L
A279- CRITICA
02 L
A279- CRITICA
Issue 02 (2019-10-10)
Alarm
Probable Cause
Name
Exhaust fan 4 1. The cable to the fan is not
power supply connected properly.
abnormal
2. The fan is faulty.
Exhaust fan 5 1. The cable to the fan is not
power supply connected properly.
abnormal
2. The fan is faulty.
Exhaust fan 6 1. The cable to the fan is not
power supply connected properly.
abnormal
2. The fan is faulty.
Teamwork 1. Any two air conditioner units
networking have the same address.
abnormal
2. The software versions of the air
alarm
conditioners in the group are
inconsistent.
3. The sensor that corresponds to
the temperature and humidity
control type for the master unit is
not enabled on this air conditioner.
Teamwork 1. Teamwork settings are incorrect
networking for slave units.
abnormal
2. The number of air conditioner
alarm
units is incorrectly set on the master
unit.
3. A slave unit is offline.
Motorized 1. The control cable to the air
damper open damper is loose or damaged.
fault
2. The air damper is faulty.
Exhaust air 1. The control cable to the air
damper fault damper is loose or damaged.
2. The air damper is faulty.
Motorized The air damper is faulty.
damper off
fault alarm
Exhaust air The air damper is faulty.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Solution
1. Check the cable connection to
the fan.
2. Maintain or replace the fan.
1. Check the cable connection to
the fan.
2. Maintain or replace the fan.
1. Check the cable connection to
the fan.
2. Maintain or replace the fan.
1. Change the addresses of the
air conditioner units.
2. Upgrade the air conditioner
software by referring to the
section that describes the
mapping between the software
and the teamwork versions in
the upgrade guide.
3. Enable the sensor that
corresponds to the temperature
and humidity control type for
the master unit on this air
conditioner.
1. Modify teamwork settings for
slave units to enable slave units
to join the teamwork group.
2. Set the total number of units
on the master unit to the actual
number of units.
3. Check the teamwork cable
connection and running status of
the slave units.
1. Check the control cable
connection to the air damper.
2. Maintain or replace the air
damper.
1. Check the control cable
connection to the air damper.
2. Maintain or replace the air
damper.
1. Maintain or replace the air
damper.
1. Maintain or replace the air
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