Table of contents
User reference guide
2
FTXF20~42E5V1B+ATXF20~42E5V1B
Daikin room air conditioners
4D526466-14K – 2022.09
Table of contents
1 About the documentation 3
1.1 About this document ...................................................................................................................................................... 3
1.2 User reference guide at a glance.................................................................................................................................... 3
1.3 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
3.2 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 16
4.1 Overview: Before operation ........................................................................................................................................... 16
4.2 To mount the wireless remote control holder............................................................................................................... 16
4.3 To insert the batteries .................................................................................................................................................... 16
4.4 To turn on the power supply .......................................................................................................................................... 17
5 Operation 18
5.1 Operation range.............................................................................................................................................................. 18
5.2 When to use which feature ............................................................................................................................................ 18
5.3 Operation mode and temperature setpoint .................................................................................................................. 19
5.3.1 To start/stop operation mode and to set the temperature.......................................................................... 20
5.3.2 Airflow rate ..................................................................................................................................................... 20
5.3.3 Airflow direction ............................................................................................................................................. 21
5.3.4 Comfort airflow operation ............................................................................................................................. 22
5.3.5 Powerful operation......................................................................................................................................... 23
5.3.6 Econo operation ............................................................................................................................................. 23
5.3.7 OFF/ON timer operation ................................................................................................................................ 24
6 Energy saving and optimum operation 26
7 Maintenance and service 28
7.1 Overview: Maintenance and service .............................................................................................................................. 28
7.2 To clean the indoor unit and wireless remote control .................................................................................................. 29
7.3 To clean the front panel ................................................................................................................................................. 30
7.4 About the air filters......................................................................................................................................................... 30
7.5 To open the front panel.................................................................................................................................................. 30
7.6 To clean the air filters ..................................................................................................................................................... 30
7.7 To close the front panel.................................................................................................................................................. 31
7.8 To take following items into account before a long idle period.................................................................................... 31
8 Troubleshooting 33
8.1 Symptoms that are NOT system malfunctions............................................................................................................... 35
8.1.1 Symptom: A sound like water flowing is heard ............................................................................................. 35
8.1.2 Symptom: A blowing sound is heard.............................................................................................................. 35
8.1.3 Symptom: A ticking sound is heard................................................................................................................ 35
8.1.4 Symptom: A whistling sound is heard............................................................................................................ 35
8.1.5 Symptom: A clicking sound during operation or idle time is heard .............................................................. 35
8.1.6 Symptom: A clapping sound is heard............................................................................................................. 35
8.1.7 Symptom: White mist comes out of a unit (Indoor unit) .............................................................................. 35
8.1.8 Symptom: The units can give off odours ....................................................................................................... 35
8.1.9 Symptom: The outdoor fan rotates while the air conditioner is not in operation ....................................... 36
8.2 Solving problems based on error codes ......................................................................................................................... 36
9 Disposal 38
10 Glossary 39
