Huawei NetCol5000-A User Manual page 155

NetCol5000-A 42 kW Air Cooled In-row Precision Air
Conditioner
User Manual
Alarm
Alarm
ID
abnormal
L1/L2
disconnect
Water
a130
inlet
solenoid
valve fault
a134 Suction
temp
sensor
fault
a136 EEV low
overheatin
g degree
a137 EEV low
overheatin
g locked
a140 EEV auto
control
fault
Issue 01 (2017-07-27)
Alarm
Impact
Severity
is
generated.
The alarm
Major
is
generated,
and the
humidifier
shuts
down.
Major The alarm
is
generated.
Major The alarm
is
generated,
and the
compresso
r shuts
down.
Critical The alarm
is
generated,
and the
compresso
r shuts
down.
Critical The alarm
is
generated,
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Possible Cause
incorrect for slave units.
2. Teamwork settings are
incorrect for the master
unit.
3. A slave unit is power off
or offline.
4. The ETH converter is
faulty.
5. The smart socket is
faulty.
6. The cables are faulty
between the air
conditioner and the smart
socket or monitoring
host.
The water inlet solenoid
valve is faulty.
1. Cables to the suction
temperature sensor are
not properly connected.
2. The suction temperature
sensor is faulty.
1. The electronic expansion
valve coil is loose.
2. The electronic expansion
valve coil is faulty.
3. The electronic expansion
valve is faulty.
The EEV low overheating
degree alarm is generated
several times within a certain
period.
1. The suction pressure
sensor is faulty.
2. The suction temperature
5 Operation and Maintenance
Solution
fan.
2. Modify teamwork
settings for slave units to
enable slave units to join
the teamwork group.
3. Check the cable
connection and running
conditions of the slave
units.
4. Maintain or replace the
ETH converter.
5. Maintain or replace the
smart socket.
6. Maintain or replace the
cables between the air
conditioner and the smart
socket or monitoring
host.
Replace the water inlet
solenoid valve.
1. Check cables to the
suction temperature
sensor.
2. Maintain or replace the
suction temperature
sensor.
1. Reinstall the electronic
expansion valve coil.
2. Replace the electronic
expansion valve coil.
3. Replace the electronic
expansion valve.
Refer to the solutions for the
a136 EEV low overheating
degree alarm.
1. Verify that the suction
pressure sensor works
properly.
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