SiENBE04-808_A
Table of Contents ii
1. Introduction ............................................................................................ vi
1.1 Safety Cautions ....................................................................................... vi
1.2 Used Icons ...............................................................................................x
Part 1 List of Functions ................................................................ 1
1. Functions.................................................................................................2
1.1 Cooling Only.............................................................................................2
1.2 Heat Pump ...............................................................................................3
Part 2 Specifications .................................................................... 5
1. Specifications ..........................................................................................6
1.1 Cooling Only.............................................................................................6
1.2 Heat Pump ...............................................................................................9
Part 3 Printed Circuit Board Connector Wiring Diagram ........... 17
1. Printed Circuit Board Connector Wiring Diagram..................................18
1.1 Indoor Unit..............................................................................................18
1.2 Outdoor Unit ...........................................................................................21
Part 4 Function and Control........................................................ 29
1. Main Functions......................................................................................30
1.1 Frequency Principle................................................................................30
1.2 Airflow Direction Control.........................................................................32
1.3 Fan Speed Control for Indoor Units........................................................33
1.4 Program Dry Operation ..........................................................................34
1.5 Automatic Operation...............................................................................35
1.6 Thermostat Control.................................................................................36
1.7 NIGHT SET Mode ..................................................................................37
1.8 ECONO Operation .................................................................................38
1.9 2-Area INTELLIGENT EYE Operation ...................................................39
1.10 INTELLIGENT EYE Operation ...............................................................41
1.11 Inverter POWERFUL Operation.............................................................42
1.12 Other Functions......................................................................................43
2. Function of Thermistor ..........................................................................44
3. Control Specification .............................................................................45
3.1 Mode Hierarchy ......................................................................................45
3.2 Frequency Control..................................................................................46
3.3 Controls at Mode Changing / Start-up....................................................48
3.4 Discharge Pipe Temperature Control.....................................................50
3.5 Input Current Control..............................................................................51
3.6 Freeze-up Protection Control .................................................................53
3.7 Heating Peak-cut Control .......................................................................53
3.8 Outdoor Fan Control...............................................................................54
3.9 Liquid Compression Protection Function................................................54
3.10 Defrost Control .......................................................................................55
3.11 Electronic Expansion Valve Control .......................................................56
3.12 Malfunctions ...........................................................................................59
3.13 Forced Operation Mode .........................................................................60
3.14 Standby Electricity Saving......................................................................60
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