Huawei NetCol5000-A User Manual page 175

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm)
Alar Alarm
Alarm
m Severit
ID y
a044 Smoke Critical
detected
Teamw
a045 Major
ork
network
ing
failed
a046 Comp Major
freeze
point
protecti
on
Issue 13 (2019-01-15)
Default
Impact
Value
N/A The alarm
is
generated
, and the
system
shuts
down.
The alarm
N/A
is
generated
, and a
message
"Network
ing
failed" is
displayed.
N/A The alarm
is
generated
, and the
compress
or shuts
down
forcibly.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Cause
1. Smoke is generated in
the equipment room.
2. The cables to the smoke
sensor are loose or
damaged.
3. The smoke sensor is
faulty.
1. The DIP switch is set
incorrectly for
teamwork.
2. The teamwork cables
are loose or damaged.
3. Any two smart cooling
product units have the
same address.
4. No smart cooling
product unit is
configured as the
master unit.
5. The master unit is
powered off.
1. The refrigerant leaks.
2. The solenoid valve is
faulty.
3. The cables to the low
press sensor are loose
or damaged.
4. The low press sensor is
faulty.
5. The filter dryer is
blocked.
6. The expansion valve is
blocked.
Solution
1. Exhaust smoke in
equipment room and
reset the smoke sensor.
2. Check cables to the
smoke sensor.
3. Maintain or replace the
smoke sensor.
1. Set the DIP switch
correctly for
teamwork.
2. Check the teamwork
cables.
3. Change the addresses
of the smart cooling
product units.
4. Configure one smart
cooling product unit as
the master unit.
5. Power on the master
unit, or configure
another unit as the
master unit.
1. Check for any
leakages. Fill
refrigerant after
maintenance or
replacement.
2. Maintain or replace the
solenoid coil or the
solenoid valve.
3. Check the cables to the
low press sensor.
4. Maintain or replace the
low press sensor.
5. Maintain or replace the
filter dryer.
6. Maintain or replace the
expansion valve.
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