Service Manual

Table Of Contents

SiUS121502E

Table of Contents ii

1. Safety Cautions.......................................................................................... vi

1.1 Warnings and Cautions Regarding Safety of Workers.................................vi

1.2 Warnings and Cautions Regarding Safety of Users................................... viii

2. Used Icons ................................................................................................. xi

Part 1 List of Functions ................................................................... 1

1. Functions.....................................................................................................2

Part 2 Specifications ....................................................................... 7

1. Indoor Unit...................................................................................................8

2. Outdoor Unit..............................................................................................14

Part 3 Printed Circuit Board Connector Wiring Diagram .............. 17

1. Indoor Unit.................................................................................................18

1.1 CTXS07LVJU, FTXS09/12LVJU ................................................................ 18

1.2 FTXS15/18/24LVJU ................................................................................... 20

1.3 FDXS09/12LVJU, CDXS15/18/24LVJU ..................................................... 22

1.4 FVXS09/12/18NVJU................................................................................... 24

1.5 FFQ09/12/15/18LVJU ................................................................................ 26

2. Wired Remote Controller...........................................................................27

2.1 BRC1E71 ................................................................................................... 27

2.2 BRC1E72/73 .............................................................................................. 28

3. Wireless Remote Controller ......................................................................29

3.1 BRC7E830 ................................................................................................. 29

4. Outdoor Unit..............................................................................................30

Part 4 Function and Control........................................................... 33

1. Function of CTXS, FTXS, CDXS, FDXS, FVXS Series ............................34

1.1 Temperature Control .................................................................................. 34

1.2 Frequency Principle.................................................................................... 34

1.3 Airflow Direction Control (CTXS, FTXS, FVXS Series) .............................. 36

1.4 Fan Speed Control for Indoor Unit ............................................................. 39

1.5 Program Dry Operation .............................................................................. 40

1.6 Automatic Operation................................................................................... 41

1.7 Thermostat Control..................................................................................... 42

1.8 NIGHT SET Mode ...................................................................................... 43

1.9 ECONO Operation ..................................................................................... 43

1.10 INTELLIGENT EYE Operation (CTXS, FTXS Series)................................ 44

1.11 Inverter POWERFUL Operation ................................................................. 45

1.12 Clock Setting .............................................................................................. 46

1.13 WEEKLY TIMER Operation (CTXS, FTXS, FVXS series) ......................... 47

1.14 Other Functions.......................................................................................... 53

2. Function of FFQ Series .............................................................................54

2.1 Drain Pump Control.................................................................................... 54

2.2 Thermostat Sensor in Remote Controller................................................... 56