SiBE041011ECTable of Contents ii1. Safety Cautions.......................................................................................v1.1 Warnings and Cautions Regarding Safety of Workers.............................v1.2 Warnings and Cautions Regarding Safety of Users............................... vii2. Used Icons ..............................................................................................xPart 1 List of Functions ................................................................ 11. Functions.................................................................................................21.1 Cooling Only.............................................................................................21.2 Heat Pump ...............................................................................................3Part 2 Specifications .................................................................... 41. Specifications ..........................................................................................51.1 Cooling Only.............................................................................................51.2 Heat Pump ...............................................................................................7Part 3 Printed Circuit Board Connector Wiring Diagram ........... 111. Indoor Unit.............................................................................................122. Outdoor Unit..........................................................................................142.1 RK(X)S60F3V1B, 71 Class ....................................................................142.2 RK(X)S60F3V1B9, RXS60F4V1B..........................................................16Part 4 Function and Control........................................................ 181. Main Functions......................................................................................191.1 Temperature Control ..............................................................................191.2 Frequency Principle................................................................................191.3 Airflow Direction Control.........................................................................211.4 Fan Speed Control for Indoor Unit .........................................................221.5 Program Dry Operation ..........................................................................231.6 Automatic Operation...............................................................................241.7 Thermostat Control.................................................................................251.8 NIGHT SET Mode ..................................................................................261.9 ECONO Operation .................................................................................261.10 INTELLIGENT EYE Operation ...............................................................271.11 Inverter POWERFUL Operation .............................................................281.12 Clock Setting ..........................................................................................291.13 WEEKLY TIMER Operation ...................................................................301.14 Other Functions......................................................................................362. Function of Thermistor ..........................................................................373. Control Specification .............................................................................383.1 Mode Hierarchy ......................................................................................383.2 Frequency Control..................................................................................393.3 Controls at Mode Changing / Start-up....................................................413.4 Discharge Pipe Temperature Control.....................................................433.5 Input Current Control..............................................................................443.6 Freeze-up Protection Control .................................................................453.7 Heating Peak-cut Control .......................................................................453.8 Outdoor Fan Control...............................................................................463.9 Liquid Compression Protection Function................................................463.10 Defrost Control .......................................................................................47