Table of contents
User reference guide
2
CTXF20~35F5V1B
Daikin room air conditioner
4D153789-6 – 2024.09
Table of contents
1 About the documentation 4
1.1 About this document...................................................................................................................................................... 4
1.2 Meaning of warnings and symbols ................................................................................................................................ 4
2 User safety instructions 6
2.1 General ........................................................................................................................................................................... 6
2.2 Instructions for safe operation ...................................................................................................................................... 7
3 About the system 11
3.1 Indoor unit...................................................................................................................................................................... 11
3.1.1 Indoor unit display ......................................................................................................................................... 12
3.2 About the user interface ................................................................................................................................................ 12
3.2.1 Components: Wireless remote control......................................................................................................... 13
3.2.2 Status: Wireless remote control LCD ............................................................................................................ 13
3.2.3 To operate the wireless remote control ....................................................................................................... 14
4 Before operation 15
4.1 Overview: Before operation........................................................................................................................................... 15
4.2 To insert the batteries.................................................................................................................................................... 15
4.3 To mount the wireless remote control holder .............................................................................................................. 15
4.4 To turn on the power supply.......................................................................................................................................... 16
5 Operation 17
5.1 Operation range ............................................................................................................................................................. 17
5.2 When to use which feature............................................................................................................................................ 17
5.3 Operation mode and temperature setpoint.................................................................................................................. 18
5.3.1 To start/stop operation mode and to set the temperature ......................................................................... 18
5.4 Airflow rate..................................................................................................................................................................... 19
5.4.1 To adjust the airflow rate .............................................................................................................................. 19
5.5 Airflow direction............................................................................................................................................................. 19
5.5.1 To adjust the airflow direction ...................................................................................................................... 20
5.6 Comfort airflow operation ............................................................................................................................................. 20
5.6.1 To start/stop Comfort airflow operation ...................................................................................................... 21
5.7 Powerful operation ........................................................................................................................................................ 21
5.7.1 To start/stop Powerful operation.................................................................................................................. 22
5.8 Econo operation ............................................................................................................................................................. 22
5.8.1 To start/stop Econo operation ...................................................................................................................... 22
5.9 OFF/ON timer operation ................................................................................................................................................ 23
5.9.1 To start/stop OFF timer operation ................................................................................................................ 23
5.9.2 To start/stop ON timer operation ................................................................................................................. 23
5.9.3 To combine OFF timer and ON timer ............................................................................................................ 24
5.10 Wireless LAN connection ............................................................................................................................................... 24
5.10.1 Precautions when using the wireless LAN..................................................................................................... 24
5.10.2 To install the ONECTA app............................................................................................................................. 25
5.10.3 To set the wireless connection...................................................................................................................... 25
6 Energy saving and optimum operation 28
7 Maintenance and service 30
7.1 Overview: Maintenance and service.............................................................................................................................. 30
7.2 To clean the indoor unit and wireless remote control.................................................................................................. 31
7.3 To clean the front panel ................................................................................................................................................. 32
7.4 About the air filters ........................................................................................................................................................ 32
7.5 To open the front panel ................................................................................................................................................. 32
7.6 To clean the air filters..................................................................................................................................................... 32
7.7 To close the front panel ................................................................................................................................................. 33
7.8 To take following items into account before a long idle period ................................................................................... 33
8 Troubleshooting 35
8.1 Symptoms that are NOT system malfunctions.............................................................................................................. 37
8.1.1 Symptom: A sound like water flowing is heard............................................................................................. 37
8.1.2 Symptom: A blowing sound is heard............................................................................................................. 37
8.1.3 Symptom: A ticking sound is heard ............................................................................................................... 37
8.1.4 Symptom: A whistling sound is heard ........................................................................................................... 37
8.1.5 Symptom: A clicking sound during operation or idle time is heard ............................................................. 37
8.1.6 Symptom: A clapping sound is heard............................................................................................................ 37
8.1.7 Symptom: White mist comes out of a unit (Indoor unit).............................................................................. 37
