Huawei NetCol5000-C Series User Manual page 139

NetCol5000-C(065, 080) In-row Chilled Water Smart
Cooling Product
User Manual
Alarm
ID
A025-01
A026-01
A027-01
A040-01
Issue 07 (2020-03-16)
Alarm Alarm
Name Severit
y
g
runtime
alarm
Air filter Warnin
blocked g
alarm
Air filter Warnin
exceed g
runtime
alarm
Power loss Warnin
alarm g
PSU 1 Major
power
input
failure
alarm
PSU 2 Major
power
input
failure
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Impact Possible Cause
triggere indoor fan exceeds
d. the alarm threshold.
1. Air filters are
An
blocked or dirty.
alarm is
triggere 2. The differential
d, and pressure switch
the is faulty.
electric
3. The threshold of
heater
air filter
and
blockage set for
humidif
the differential
ier of
pressure switch
the
is inappropriate.
smart
4. The pressure
cooling
tube of the
product
differential
are shut
pressure switch
down.
is blocked or
disconnected.
5. The cables to the
differential
pressure switch
are loose or
damaged.
An The accumulated
alarm is runtime of the air
triggere filter exceeds the
d. alarm threshold.
An The power supply is
cut off.
alarm is
triggere
d.
An The input power
alarm is cables of the PSU
triggere are loose or
d. damaged.
An The input power
alarm is cables of the PSU
triggere are loose or
d. damaged.
Solution
clear the
accumulated
runtime.
1. Maintain or
replace the air
filters.
2. Replace the
differential
pressure switch.
3. Adjust the
threshold set for
the differential
pressure switch.
4. Dredge or
replace the
pressure tube.
5. Check the cables
to the differential
pressure switch.
Maintain or replace
the air filter and
clear the
accumulated
runtime.
If power failure
occurs on the power
system, no
maintenance is
needed. If it occurs
in other places,
check the power
supply cables.
Check the input
power cables of the
PSU.
Check the input
power cables of the
PSU.
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