Huawei NetCol8000-C070 User Manual page 155

NetCol8000-C(070, 130, 190) In-room Chilled Water
Smart Cooling Product
User Manual
Alar
m ID
A273
A278
A279
Issue 02 (2020-08-30)
Alarm Alarm Possible Cause
Name Severi
ty
Teamwor Major 1. Teamwork settings are
k incorrect for slave units.
networki
2. The number of air
ng
conditioner units is
abnormal
incorrectly set on the
alarm
master unit.
3. A slave unit is offline.
Teamwor Major 1. All sensors for
k controlling the indoor fan
function are disabled.
abnormal
2. All cables to the
alarm
sensors for controlling
the indoor fan are loose
or damaged.
3. All sensors for
controlling the indoor fan
are faulty.
Chilled Warni 1. The cables to the
water ng chilled water valve are
valve loose or damaged.
fault
2. The chilled water valve
is faulty.
Motorize Critica 1. The control cable to
d damper l the air damper is loose or
fault damaged.
2. The air damper is
faulty.
Fresh air Critica 1. The control cable to
damper l the air damper is loose or
fault damaged.
2. The air damper is
faulty.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Solution
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. 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 chilled water valve.
2. Maintain or replace
the chilled water valve.
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.
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