SiUS04-924_A
Table of Contents ii
Part 3
Printed Circuit Board
Connector Wiring Diagram6
1. Indoor Unit...................................................................................................7
2. Outdoor Unit..............................................................................................10
Part 4
Function and Control12
1. Main Functions..........................................................................................13
1.1 Temperature Control .................................................................................. 13
1.2 Frequency Principle.................................................................................... 13
1.3 Airflow Direction Control............................................................................. 15
1.4 Fan Speed Control for Indoor Unit ............................................................. 17
1.5 Program Dry Operation .............................................................................. 18
1.6 Automatic Operation................................................................................... 19
1.7 Thermostat Control..................................................................................... 20
1.8 NIGHT SET Mode ...................................................................................... 21
1.9 ECONO Operation ..................................................................................... 22
1.10 INTELLIGENT EYE Operation ................................................................... 23
1.11 Inverter POWERFUL Operation ................................................................. 24
1.12 Other Functions.......................................................................................... 25
2. Function of Thermistor ..............................................................................26
3. Control Specification .................................................................................27
3.1 Mode Hierarchy .......................................................................................... 27
3.2 Frequency Control...................................................................................... 28
3.3 Controls at Mode Changing / Start-up........................................................ 30
3.4 Discharge Pipe Temperature Control......................................................... 32
3.5 Input Current Control.................................................................................. 33
3.6 Freeze-up Protection Control ..................................................................... 34
3.7 Heating Peak-cut Control ........................................................................... 34
3.8 Outdoor Fan Control................................................................................... 35
3.9 Liquid Compression Protection Function.................................................... 35
3.10 Defrost Control ........................................................................................... 36
3.11 Electronic Expansion Valve Control ........................................................... 37
3.12 Malfunctions ............................................................................................... 40
Part 5
Operation Manual ................................................................ 41
1. System Configuration................................................................................42
2. Operation Manual......................................................................................43
2.1 Remote Controller ...................................................................................... 43
2.2 AUTO · DRY · COOL · HEAT · FAN Operation .......................................... 45
2.3 Adjusting the Airflow Direction.................................................................... 47
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