Service manual

SiBE06-708_C
Table of Contents ii
1. Introduction .............................................................................................v
1.1 Safety Cautions ........................................................................................v
1.2 Used Icons .............................................................................................. ix
Part 1 List of Functions ................................................................ 1
1. Functions.................................................................................................2
1.1 Cooling Only.............................................................................................2
1.2 Heat Pump ...............................................................................................5
Part 2 Specifications .................................................................. 10
1. Specifications ........................................................................................11
1.1 Cooling Only...........................................................................................11
1.2 Heat Pump .............................................................................................16
Part 3 Printed Circuit Board Connector Wiring Diagram ........... 25
1. Indoor Unit.............................................................................................26
2. Outdoor Unit..........................................................................................28
2.1 RK(X)S25/35F2V1B ...............................................................................28
2.2 RK(X)S25/35G2V1B...............................................................................30
2.3 RK(X)S25/35G2V1B9, RXS25/35J2V1B, RXS25/35K2V1B,
RXS25K3V1B.........................................................................................32
2.4 RK(X)S50F2V1B, RK(X)S50G2V1B, RXS50J2V1B ..............................34
2.5 RXS50K2V1B.........................................................................................36
Part 4 Function and Control........................................................ 38
1. Main Functions......................................................................................39
1.1 Temperature Control ..............................................................................39
1.2 Frequency Principle................................................................................39
1.3 Airflow Direction Control.........................................................................41
1.4 Fan Speed Control for Indoor Unit .........................................................43
1.5 Program Dry Operation ..........................................................................44
1.6 Automatic Operation...............................................................................45
1.7 Thermostat Control.................................................................................46
1.8 NIGHT SET Mode ..................................................................................47
1.9 ECONO Operation .................................................................................48
1.10 Inverter POWERFUL Operation .............................................................49
1.11 Clock Setting ..........................................................................................50
1.12 WEEKLY TIMER Operation ...................................................................51
1.13 Other Functions......................................................................................56
2. Function of Thermistor ..........................................................................57
3. Control Specification .............................................................................58
3.1 Mode Hierarchy ......................................................................................58
3.2 Frequency Control..................................................................................59
3.3 Controls at Mode Changing / Start-up....................................................61
3.4 Discharge Pipe Temperature Control.....................................................63
3.5 Input Current Control..............................................................................64
3.6 Freeze-up Protection Control .................................................................65
3.7 Heating Peak-cut Control .......................................................................65
3.8 Outdoor Fan Control...............................................................................66