Huawei NetCol5000-C030H90D0 User Manual page 150

NetCol5000-C(030, 032, 065) In-row Chilled Water
Smart Cooling Product
User Manual (2019)
Alar
m ID
A273
A278
A27C
Issue 03 (2020-08-30)
Alarm Alarm
Name Severi
ty
Teamwork WARNI
function NG
abnormal
alarm
Chilled MAJO
water valve R
fault
Cold aisle 1 MAJO
temp/humid R
sensor fault
Cold aisle 2
temp/humid
sensor fault
Cold aisle 3
temp/humid
sensor fault
Cold aisle 4
temp/humid
sensor fault
Cold aisle 5
temp/humid
sensor fault
Hot aisle 1
temp/humid
sensor fault
Hot aisle 2
temp/humid
sensor fault
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Cause
1. All sensors for
controlling the
indoor fan are
disabled.
2. All cables to the
sensors for
controlling the
indoor fan are loose
or damaged.
3. All sensors for
controlling the
indoor fan are
faulty.
1. The cables to the
chilled water valve
are loose or
damaged.
2. The chilled water
valve is faulty.
1. The cables to the
temperature and
humidity sensor are
loose or damaged.
2. The temperature
and humidity sensor
is faulty.
Solution
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 cables to
the temperature and
humidity sensor.
2. Maintain or replace
the temperature and
humidity sensor.
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