SiUS041111
iii
Table of Contents
3.4
Discharge Pipe Temperature Control......................................................... 39
3.5
Input Current Control.................................................................................. 40
3.6
Freeze-up Protection Control ..................................................................... 41
3.7
Heating Peak-cut Control ........................................................................... 41
3.8
Outdoor Fan Control................................................................................... 42
3.9
Liquid Compression Protection Function.................................................... 42
3.10 Defrost Control ........................................................................................... 43
3.11 Electronic Expansion Valve Control ........................................................... 45
3.12 Malfunctions ............................................................................................... 48
Part 5
Operation Manual ................................................................ 49
1. System Configuration................................................................................50
2. 09/12 Class ...............................................................................................51
2.1
Remote Controller ...................................................................................... 51
2.2
AUTO · DRY · COOL · HEAT · FAN Operation .......................................... 53
2.3
Adjusting the Airflow Direction and Rate .................................................... 55
2.4
COMFORT AIRFLOW Operation ............................................................... 57
2.5
POWERFUL Operation .............................................................................. 58
2.6
ECONO Operation ..................................................................................... 59
2.7
OFF TIMER Operation ............................................................................... 60
2.8
ON TIMER Operation ................................................................................. 61
3. 15/18/24 Class ..........................................................................................62
3.1
Remote Controller ...................................................................................... 62
3.2
AUTO · DRY · COOL · HEAT · FAN Operation .......................................... 64
3.3
Adjusting the Airflow Direction and Rate .................................................... 66
3.4
POWERFUL Operation .............................................................................. 68
3.5
OFF TIMER Operation ............................................................................... 69
3.6
ON TIMER Operation ................................................................................. 70
Part 6
Service Diagnosis................................................................ 71
1. Troubleshooting with LED .........................................................................73
1.1
Indoor Unit.................................................................................................. 73
1.2
Outdoor Unit ............................................................................................... 73
2. Problem Symptoms and Measures ...........................................................74
3. Service Check Function ............................................................................75
4. Troubleshooting ........................................................................................78
4.1
Error Codes and Description ...................................................................... 78
4.2
Indoor Unit PCB Abnormality ..................................................................... 79
4.3
Freeze-up Protection Control or Heating Peak-cut Control........................ 80
4.4
Fan Motor (DC Motor) or Related Abnormality........................................... 82
4.5
Thermistor or Related Abnormality (Indoor Unit)........................................ 85
4.6
Signal Transmission Error (between Indoor Unit and Outdoor Unit) .......... 86
4.7
Unspecified Voltage (between Indoor Unit and Outdoor Unit) ................... 88
