Huawei FusionCol8000-E240 User Manual page 176

FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
Alarm ID Alarm Name
A272-02 Teamwork networking
abnormal alarm
A273-01 Teamwork function
abnormal alarm
A279-01 Supply air damper
fault
A279-04
Return air damper
fault
Exhaust air damper
fault
A279-02 Supply air damper
fault
Return air damper
fault
Exhaust air damper
fault
Issue 02 (2021-04-15)
Alarm
Severity
Major
Major
Critical
Warning
Copyright © Huawei Technologies Co., Ltd.
Possible Cause
● Teamwork settings
are incorrect for
slave units.
● The number of air
conditioner units is
incorrectly set on
the master unit.
● A slave unit is
offline.
● All sensors for
controlling the
indoor fan are
disabled.
● All cables to the
sensors for
controlling the
indoor fan are
loose or damaged.
● All sensors for
controlling the
indoor fan are
faulty.
● The control cable
to the air damper is
loose or damaged.
● The air damper is
faulty.
The air damper is
faulty.
8 System Maintenance
Solution
1. Modify teamwork
settings for slave
units to enable
slave units to join
the teamwork
group.
2. Set the number of
units in this group
to the actual
number on the
master unit.
3. Check the
teamwork cable
connection and
running status of
the slave units.
1. Enable the sensors
for controlling the
indoor fan.
2. Check the cable
connections to the
sensors for
controlling the
indoor fan.
3. Maintain or replace
the sensors for
controlling the
indoor fan.
1. Check the control
cable connection to
the air damper.
2. Maintain or replace
the air damper.
Maintain or replace
the air damper.
167