Huawei NetCol5000-A021 User Manual page 177

NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)
Alarm Alarm Name
ID
a122 Insufficient
water supply
a123 High
conductivity
Issue 03 (2020-01-10)
Alarm Impact
Severity
Warning The alarm is
generated.
Major The alarm is
generated.
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Causes Solution
dropped.
4. The ETH
converter is 4. Check the ETH converter
faulty.
5. The smart 5. Check the rack
socket is faulty.
6. The cables are
faulty between 6. Maintain or replace the
the smart
cooling product
and the ETH
converter or the
supervisory.
1. The water 1. Verify that the water
supply pressure
is insufficient.
2. The water 2. Verify that the water
supply is cut
off, the water
inlet pipe is
blocked, or the
3. Verify that cables to the
water source
has no water.
3. The water inlet
solenoid valve
is faulty or
4. Verify that cables to the
blocked.
4. The drainage
solenoid valve
leaks.
5. Humidifier 5. Verify that cables to
electrodes or
cable
connections are
faulty, and no
6. Check the high water level
current exists in
the cylinder.
7. Open the humidifier
6. The high water
level sensor
circuit is faulty.
7. The high water
level sensor is
short-circuited.
1. The inlet water 1. Verify that the water
conductivity is
higher than the
threshold 1250
2. Check the conductivity
μS/cm.
2. The
NOTE
conductivity
connection and Running
Condition.
works properly.
environment unit works
properly.
cables between the smart
cooling product and the
ETH converter or the
supervisory.
supply pressure is 0.1 to
0.7 MPa.
supply pipe is unblocked,
and the water source has
water.
water inlet solenoid valve
are properly connected.
Wash or replace the valve
if necessary.
drainage solenoid valve are
properly connected. Wash
or replace the valve if
necessary.
humidifier electrodes are
properly connected, and
electrodes work properly.
sensor circuit.
cylinder and clean the high
water level sensor.
conductivity meets the
requirement.
gauge and the circuit.
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