Si04-115
ii
Table of Contents
Inverter Pair FTK(X)-J / RK(X)-J Series........................................... i
1. Introduction .............................................................................................v
1.1
Safety Cautions ........................................................................................v
Part 1 List of Function .................................................................. 1
1. Functions.................................................................................................2
1.1
Indoor Unit and Outdoor Unit ...................................................................2
Part 2 Specification ...................................................................... 3
1. Specifications ..........................................................................................4
1.1
Cooling Only.............................................................................................4
1.2
Heat Pump ...............................................................................................8
Part 3 Printed Circuit Board Connector Wiring Diagram ...........11
1. Printed Circuit Board Connector Wiring Diagram and Name ................12
1.1
FTK25/35J Series, FTX25/35J Series....................................................12
1.2
RK25/35J Series, RX25/35J Series .......................................................15
Part 4 Main Function...................................................................17
1. General Functionality ............................................................................18
1.1
Functions of Thermistors........................................................................18
1.2
Operating Modes....................................................................................20
1.3
Frequency Principle................................................................................21
1.4
Defrost Control .......................................................................................23
1.5
Forced Operation Mode .........................................................................24
1.6
Wide-angle Flaps, Diffuser, Louveres and Autoswing............................25
1.7
Fan Speed Control for Indoor Units........................................................26
1.8Fan Speed Control for Outdoor Units.....................................................27
1.9
General Functions ..................................................................................28
1.10 Intelligent Eye.........................................................................................30
1.11 Good Sleep Cooling Control...................................................................32
1.12 Automatic Operation...............................................................................33
1.13 Input Current Control..............................................................................34
1.14 Freeze Protection Function in Cooling ...................................................35
1.15 Peak-Cut Control Function .....................................................................36
1.16 Four-Way Valve Function Compensation...............................................37
1.17 Compressor Protection Function............................................................38
1.18Wet Operation Protection .......................................................................39
1.19 Dew Condensation Sweating Prevention Function ................................40
Part 5 System Configuration.......................................................41
1. Instruction..............................................................................................42
1.1
FTK25 / 35J, FTX25 / 35J ......................................................................42
Part 6 Service Diagnosis.............................................................61
1. Caution for Diagnosis............................................................................62
1.1
Troubleshooting with The Operation Lamp ............................................62
