Huawei NetCol5000-A021 User Manual page 178

NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)
Alarm Alarm Name
ID
a124 Low
conductivity
a126 Drainage failure
a127 Cylinder
overcurrent
Issue 03 (2020-01-10)
Alarm Impact
Severity
Warning The alarm is
generated.
Major The humidifier
is shut down.
Major The alarm is
generated.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes Solution
gauge is
short-circuited
or the circuit is
faulty.
1. The inlet water 1. Verify that the water
conductivity is
lower than the
threshold
2. Check the conductivity
100μS/cm.
2. The
NOTE
conductivity
gauge is
open-circuit or
the circuit is
faulty.
1. The water inlet 1. Verify that the inlet water
solenoid valve
leaks.
2. The drainage
solenoid valve 2. Verify that cables to the
is faulty or
blocked.
3. The drainpipe is
blocked.
3. Verify that the drainpipe
NOTE
1. The electrodes 1. Verify that electrodes are
in the
humidifier
cylinder or the
power cables
are
short-circuited.
2. Verify that cables to the
2. The water inlet
solenoid valve
leaks.
3. The inlet water
conductivity 3. Verify that the inlet water
exceeds the
upper threshold.
4. The current 4. Verify that the current
transformer
circuit is faulty.
5. The drainage 5. Verify that cables to the
solenoid valve
is faulty or
After the alarm is rectified, click
Manual clear on the alarm page.
conductivity meets the
requirement.
gauge and the circuit.
After the alarm is rectified, click
Manual clear on the alarm page.
valve works properly.
Wash or replace the valve
if necessary.
drainage solenoid valve are
properly connected. Wash
or replace the valve if
necessary.
can drain water smoothly.
After the alarm is rectified, click
Manual clear on the alarm page.
normal, not burnt or
short-circuited, and the
power cable is not
short-circuited. Wash or
replace cylinder.
water inlet solenoid valve
are properly connected.
Wash or replace the valve
if necessary.
conductivity is within the
threshold.
transformer circuit is
normal.
drainage solenoid valve are
properly connected. Wash
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