Table Of Contents - Daikin FTXS20K2V1B Service Manual

SiBE041134EB
1. Safety Cautions.......................................................................................v
2. Icons Used ............................................................................................. ix
Part 1 List of Functions ................................................................ 1
1. Functions.................................................................................................2
Part 2 Specifications .................................................................... 5
1. Specifications ..........................................................................................6
Part 3 Printed Circuit Board Connector Wiring Diagram ........... 11
1. Indoor Unit.............................................................................................12
2. Outdoor Unit ..........................................................................................14
Part 4 Functions and Control ...................................................... 17
1. Main Functions......................................................................................18
2. Thermistor Functions ............................................................................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 RXS20/25K2V1B, RXS20/25K3V1B, RXS20/25L2V1B,
ARXS25L2V1B.......................................................................................14
2.2 RXS20/25L3V1B, ARXS25L3V1B..........................................................16
1.1 Temperature Control ..............................................................................18
1.2 Frequency Principle................................................................................18
1.3 Airflow Direction Control.........................................................................20
1.4 Fan Speed Control for Indoor Unit .........................................................21
1.5 Program Dry Operation ..........................................................................22
1.6 Automatic Operation...............................................................................23
1.7 Thermostat Control.................................................................................24
1.8 NIGHT SET Mode ..................................................................................25
1.9 ECONO Operation .................................................................................25
1.10 INTELLIGENT EYE Operation ...............................................................26
1.11 Inverter POWERFUL Operation .............................................................27
1.12 Clock Setting ..........................................................................................28
1.13 WEEKLY TIMER Operation ...................................................................29
1.14 Other Functions......................................................................................35
3.1 Mode Hierarchy ......................................................................................37
3.2 Frequency Control ..................................................................................38
3.3 Controls at Mode Changing / Start-up....................................................40
3.4 Discharge Pipe Temperature Control .....................................................42
3.5 Input Current Control ..............................................................................43
3.6 Freeze-up Protection Control .................................................................44
3.7 Heating Peak-cut Control .......................................................................44
3.8 Outdoor Fan Control...............................................................................45
3.9 Liquid Compression Protection Function................................................45
3.10 Defrost Control .......................................................................................46
3.11 Electronic Expansion Valve Control .......................................................47
3.12 Malfunctions ...........................................................................................50
ii