Table Of Contents - Daikin FTXG20LV1BW Service Manual

SiBE041401E
1. Safety Cautions.......................................................................................v
2. Used Icons ..............................................................................................x
Part 1 List of Functions ................................................................ 1
1. Functions.................................................................................................2
Part 2 Specifications .................................................................... 3
1. Specifications ..........................................................................................4
Part 3 Printed Circuit Board Connector Wiring Diagram ............. 8
1. Indoor Unit...............................................................................................9
2. Outdoor Unit..........................................................................................11
Part 4 Function and Control........................................................ 15
1. Main Functions......................................................................................16
2. Function of Thermistor ..........................................................................36
3. Control Specification .............................................................................37

Table of Contents

1.1 Warnings and Cautions Regarding Safety of Workers.............................v
1.2 Warnings and Cautions Regarding Safety of Users............................... vii
2.1 20/25/35 Class .......................................................................................11
2.2 50 Class .................................................................................................13
1.1 Temperature Control ..............................................................................16
1.2 Frequency Principle................................................................................16
1.3 Operation Starting Control......................................................................18
1.4 Airflow Direction Control.........................................................................19
1.5 Fan Speed Control for Indoor Unit .........................................................20
1.6 Program Dry Operation ..........................................................................21
1.7 Automatic Operation...............................................................................22
1.8 Thermostat Control.................................................................................23
1.9 NIGHT SET Mode ..................................................................................24
1.10 ECONO Operation .................................................................................24
1.11 2-Area INTELLIGENT EYE Operation ...................................................25
1.12 Inverter POWERFUL Operation .............................................................27
1.13 Multi-Monitor Lamp / TIMER Lamp ........................................................27
1.14 Clock Setting ..........................................................................................28
1.15 WEEKLY TIMER Operation ...................................................................29
1.16 Other Functions......................................................................................35
3.1 Mode Hierarchy ......................................................................................37
3.2 Frequency Control..................................................................................37
3.3 Controls at Mode Changing / Start-up....................................................39
3.4 Discharge Pipe Temperature Control.....................................................40
3.5 Input Current Control..............................................................................41
3.6 Freeze-up Protection Control .................................................................42
3.7 Heating Peak-cut Control .......................................................................42
3.8 Outdoor Fan Control...............................................................................43
3.9 Liquid Compression Protection Function................................................43
3.10 Defrost Control .......................................................................................44
3.11 Electronic Expansion Valve Control .......................................................45
3.12 Malfunctions ...........................................................................................48
ii