SiBE07-618_DTable of Contents ii1. Introduction .............................................................................................v1.1 Safety Cautions ........................................................................................v1.2 Used Icons .............................................................................................. ixPart 1 List of Functions ................................................................ 11. Functions.................................................................................................2Part 2 Specifications .................................................................... 51. Specifications ..........................................................................................61.1 Cooling Only.............................................................................................61.2 Heat Pump ...............................................................................................9Part 3 Printed Circuit Board Connector Wiring Diagram ........... 121. Printed Circuit Board Connector Wiring Diagram..................................131.1 Indoor Unit..............................................................................................131.2 Outdoor Unit ...........................................................................................15Part 4 Function and Control........................................................ 171. Main Functions......................................................................................181.1 Temperature Control ..............................................................................181.2 Frequency Principle................................................................................181.3 Fan Speed Control for Indoor Units........................................................201.4 Program Dry Operation ..........................................................................211.5 Automatic Operation...............................................................................221.6 Thermostat Control.................................................................................231.7 NIGHT SET Mode ..................................................................................241.8 HOME LEAVE Operation .......................................................................251.9 Inverter POWERFUL Operation .............................................................261.10 Other Functions......................................................................................272. Function of Thermistor ..........................................................................283. Control Specification .............................................................................293.1 Mode Hierarchy ......................................................................................293.2 Frequency Control..................................................................................303.3 Controls at Mode Changing / Start-up....................................................323.4 Discharge Pipe Temperature Control.....................................................333.5 Input Current Control..............................................................................343.6 Freeze-up Protection Control .................................................................353.7 Heating Peak-cut Control .......................................................................353.8 Outdoor Fan Control...............................................................................363.9 Liquid Compression Protection Function................................................363.10 Defrost Control .......................................................................................373.11 Electronic Expansion Valve Control .......................................................383.12 Malfunctions ...........................................................................................41Part 5 Operation Manual ............................................................. 421. System Configuration............................................................................432. Operation Manual..................................................................................442.1 Remote Controller ..................................................................................44