Table Of Contents - Daikin FTXN25L Service Manual

Table of Contents

1.0 Inverter Single Split ......................................................................................................1
1.1 Product line-up ........................................................................................................1
1.2 Printed Circuit board (PCB) connector wiring diagram ............................................4
1.3 Piping Length & Elevation .....................................................................................17
2.0 Function & Control .....................................................................................................18
2.1 Temperature Control ..............................................................................................18
2.2 Cooling and Heating Mode Operation ...................................................................18
2.3 Fan Mode ..............................................................................................................18
2.4 Auto Mode .............................................................................................................19
2.5 Cold Draft Prevention ............................................................................................20
2.6 Sleep Mode ...........................................................................................................20
2.7 Quiet Function........................................................................................................21
2.8 Eco+ Function.........................................................................................................21
2.9 ID-OD Communication ..........................................................................................21
2.10 Thermistors in RXN,RXB,RXC,ARXN,ARXB .....................................................22
2.11 Minimum Off Time Control ...................................................................................22
2.12 Auto Restart ........................................................................................................22
2.13 Auto Random Restart ..........................................................................................22
2.14 Four Way Valve Control .......................................................................................24
2.15 Outdoor Fan Control ............................................................................................24
2.16 Rotation Regulating Functions ............................................................................24
2.17 Defrost Cycle .......................................................................................................26
2.18 Indoor Coil Freeze Prevention .............................................................................26
2.19 High Pressure Protection .....................................................................................27
2.20 Discharge Pipe Temperature Control ..................................................................27
2.21 Oil Recovery Control (Applicable for ARXN,RXN50/60L) ....................................28
2.22 Overall Current Control ........................................................................................28
3.0 Service Diagnosis.......................................................................................................29
3.1 Error Indication from Indoor ...................................................................................29
3.2 Error code retrieved by handset.............................................................................32
3.3 Error Indication from Outdoor ................................................................................34
3.4 Error code description for Inverter .........................................................................36
Table of Contents