LG ARUB230BT2 Installation Manual page 76

Test Run
Display
Master Outdoor Unit Input Voltage
1
High/ Low Voltage
2 5
slave Outdoor Unit Input Voltage
2
High/ Low Voltage
Master Outdoor Unit Inverter
1
Compressor Start Failure
2 6
slave Outdoor Unit Inverter
2
Compressor Start Failure
Master Outdoor Unit Inverter DC
1
link High Voltage
2 8
slave Outdoor Unit Inverter DC
2
link High Voltage
Master Outdoor Unit Inverter
1
Compressor Over Current
2 9
slave Outdoor Unit Inverter
2
Compressor Over Current
Master Outdoor Unit Inverter
1
Compressor High Discharge
Temperature
3 2
slave Outdoor Unit Inverter
2
Compressor High Discharge
Temperature
Master Outdoor Unit Constant
1
Speed Compressor High
Discharge Temperature
3 3
slave Outdoor Unit Constant
Speed Compressor High
2
Discharge Temperature
High Pressure of Master Outdoor
1
Unit
3 4
High Pressure of slave Outdoor
2
Unit
Low Pressure of Master Outdoor
1
Unit
3 5
Low Pressure of slave Outdoor
2
Unit
Master Outdoor Unit Inverter
1
Compressor CT Sensor Fault
4 0
slave Outdoor Unit Inverter
2
Compressor CT Sensor Fault
Master Outdoor Unit Inverter
Compressor Discharge
1
Temperature Sensor Fault
4 1
slave Outdoor Unit Inverter
Compressor Discharge
2
Temperature Sensor Fault
Master Outdoor Unit Low Pressure
1
Sensor Fault
4 2
slave Outdoor Unit Low Pressure
2
Sensor Fault
76 76 Outdoor Unit Outdoor Unit
Title
Master Outdoor Unit input voltage is over 487V or
below 270V
slave Outdoor Unit input voltage is over 487V or below
270V
The First Start Failure by Master Outdoor Unit Inverter
Compressor Abnormality
The First Start Failure by slave Outdoor Unit Inverter
Compressor Abnormality
System is turned off by Master outdoor unit DC
Voltage Over Charging
System is turned off by slave Outdoor unit DC Voltage
Over Charging
Master Outdoor Unit Inverter Compressor Fault OR
Drive Fault
slave Outdoor Unit Inverter Compressor Fault OR
Drive Fault
System is turned off by Master outdoor unit Inverter
Compressor High Discharge Temperature
System is turned off by slave Outdoor unit Inverter
Compressor High Discharge Temperature
System is turned off by Master Outdoor Uunit Constant
Speed High Discharge Temperature
System is turned off by slave Outdoor Unit Constant
Speed High Discharge Temperature
System is turned off by excessive increase of high
pressure of Master outdoor unit
System is turned off by excessive increase of high
pressure of slave outdoor unit
System is turned off by excessive decrease of low
pressure of Master outdoor unit
System is turned off by excessive decrease of low
pressure of slave outdoor unit
Master Outdoor Unit Inverter Compressor CT Sensor
open or short
slave Outdoor Unit Inverter Compressor CT Sensor
open or short
Master Outdoor Unit Inverter Compressor Discharge
Temperature Sensor open or short
slave Outdoor Unit Inverter Compressor Discharge
Temperature Sensor open or short
Master Outdoor Unit Low Pressure Sensor open or
short
slave Outdoor Unit Low Pressure Sensor open or short
Cause of Error