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Master Inverter Compressor High
1
Discharge Temperature
3
2
Slave Inverter Compressor High Discharge
2
Temperature (For 20/23/25RT Only)
Master Constant Speed Compressor1
1
High Discharge Temperature
3
3
Slave Constant Speed Compressor1 High
2
Discharge Temperature (For 20/23/25RT Only)
1 High Pressure of Master
3
4
High Pressure of Slave (For 20/23/25RT
2
Only)
1 Low Pressure of Master
3
5
Low Pressure of Slave (For 20/23/25RT
2
Only)
1 Master low compression ratio.
3
6
Slave low compression ratio. (For
2
20/23/25RT Only)
Master Inverter Compressor CT Sensor
1
Fault
4
0
Slave Inverter Compressor CT Sensor
2
Fault (For 20/23/25RT Only)
Master Inverter Compressor Discharge
1
Temperature Sensor Fault
4
1
Slave Inverter Compressor Discharge
2
Temperature Sensor Fault (For 20/23/25RT Only)
1 Master Low Pressure Sensor Fault
4
2
Slave Low Pressure Sensor Fault (For
2
20/23/25RT Only)
1 Master High Pressure Sensor Fault
4
3
Slave High Pressure Sensor Fault (For
2
20/23/25RT Only)
1 Master Air Temperature Sensor Fault
4
4
Slave Air Temperature Sensor Fault (For
2
20/23/25RT Only)
Master Suction Temperature Sensor
1
Fault
4
6
Slave Suction Temperature Sensor Fault
2
(For 20/23/25RT Only)
Master Constant Speed Compressor1
1
Discharge Temperature Sensor Fault
4
7
Slave Constant Speed Compressor1
2
Discharge Temperature Sensor Fault
(For 20/23/25RT Only)
Title
System is turned off by Master Inverter Compressor
High Discharge Temperature
System is turned off by Slave Inverter Compressor High
Discharge Temperature
System is turned off by Master Constant Speed
Compressor1 High Discharge Temperature
System is turned off by Slave Constant Speed
Compressor1 High Discharge Temperature
System is turned off by excessive increase of high pres-
sure of Master
System is turned off by excessive increase of high pres-
sure of Slave
System is turned off by excessive decrease of low pres-
sure of Master
System is turned off by excessive decrease of low pres-
sure of Slave
5 minutes after the compressor operation, the compression
ratio is less than 1,8 or continuous operation for 3 minutes
in condition less than differential pressure 400kPa.
5 minutes after the compressor operation, the compression
ratio is less than 1,8 or continuous operation for 3 minutes
in condition less than differential pressure 400kPa.
Master Inverter Compressor CT Sensor open or short
Slave Inverter Compressor CT Sensor open or short
Master Inverter Compressor Discharge Temperature
Sensor open or short
Slave Inverter Compressor Discharge Temperature
Sensor open or short
Master Low Pressure Sensor open or short
Slave Low Pressure Sensor open or short
Master High Pressure Sensor open or short
Slave High Pressure Sensor open or short
Master Air Temperature Sensor open or short
Slave Air Temperature Sensor open or short
Master Suction Temperature Sensor open or short
Slave Suction Temperature Sensor open or short
Master Constant Speed Compressor1 Discharge
Temperature Sensor open or short
Slave Constant Speed Compressor1 Discharge
Temperature Sensor open or short
INSTALLATION OF UNIT
Cause of Error
35
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