Huawei NetCol5000-C Series User Manual page 130

NetCol5000-C(065, 080) In-row Chilled Water Smart
Cooling Product
User Manual
Alarm Alarm Name
ID
a193 Air side
pressure
difference
invalid alarm
a196 Chilled water
valve feedback
fault alarm
a207 Indoor fan
unified control
interrupt alarm
a220 Wizard startup
is in progress
Issue 07 (2020-03-16)
Alarm Impact
Severity
Major Generates an
alarm
Major Generates an
alarm
Major Generates an
alarm and its
indoor fans exit
central control
mode.
Warning Generates an
alarm
Copyright © Huawei Technologies Co., Ltd.
6 System Operation and Maintenance
Possible Cause
interconnection
terminals are abnormal.
4. The water inlet
solenoid valve cannot
open.
5. The cables to the
water inlet solenoid
valve are loose or
damaged.
1. The differential
pressure sensor cable is
loose or damaged.
2. The pressure tube of
the differential pressure
sensor is reversely
connected.
3. The differential
pressure sensor is
faulty.
1. The cables to the
chilled water valve are
loose or damaged.
2. The chilled water
valve is faulty.
1. All sensors for
controlling the indoor
fan are disabled.
2. All cablesto the
sensors forcontrolling
the indoor fan are loose
or damaged.
3. All sensorsfor
controlling the indoor
fan are faulty.
Wizard startup is in
progress.
Solution
properly.
3. Verify that the
humidifier float
interconnection
terminals are properly
connected.
4. Verify that water
flows into the
humidifier pan from
the water inlet pipe of
the humidifier.
5. Verify that cables
to the water inlet
solenoid valve are
properly connected.
1. Check the cable
connection to the
differential pressure
sensor.
2. Check the tube
connection to the
differential pressure
sensor.
3. Maintain or replace
the differential
pressure sensor.
1. Check the feedback
cable connection to
the chilled water
valve.
2. Maintain or replace
the chilled water
valve.
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.
Wait until wizard
startup is complete or
clear the Wizard
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