Table of contents
User reference guide
2
FTXF50~71D2V1B + FTXF50~71A2V1B
Daikin room air conditioner
4P513685-9E – 2021.07
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: User interface .......................................................................................................................... 13
3.2.2 Status: User interface LCD.............................................................................................................................. 13
3.2.3 To operate the user interface ........................................................................................................................ 14
4 Before operation 15
4.1 Overview: Before operation ........................................................................................................................................... 15
4.2 To insert the batteries .................................................................................................................................................... 15
4.3 To mount the user interface 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.......................................................................... 19
5.4 Airflow rate ..................................................................................................................................................................... 19
5.4.1 To adjust the airflow rate ............................................................................................................................... 20
5.5 Airflow direction ............................................................................................................................................................. 20
5.5.1 To adjust the airflow direction ....................................................................................................................... 20
5.5.2 To adjust the louvers (vertical blades)........................................................................................................... 21
5.6 Comfort airflow operation.............................................................................................................................................. 21
5.6.1 To start/stop Comfort airflow operation ....................................................................................................... 21
5.7 Powerful operation ......................................................................................................................................................... 22
5.7.1 To start/stop Powerful operation .................................................................................................................. 22
5.8 Econo operation.............................................................................................................................................................. 22
5.8.1 To start/stop Econo operation ....................................................................................................................... 23
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 .................................................................................................................. 24
5.9.3 To combine OFF timer and ON timer............................................................................................................. 24
6 Energy saving and optimum operation 25
7 Maintenance and service 27
7.1 Overview: Maintenance and service .............................................................................................................................. 27
7.2 To clean the indoor unit and user interface................................................................................................................... 28
7.3 To clean the front panel ................................................................................................................................................. 29
7.4 To open the front panel.................................................................................................................................................. 29
7.5 About the air filters......................................................................................................................................................... 29
7.6 To clean the air filters ..................................................................................................................................................... 29
7.7 To close the front panel.................................................................................................................................................. 30
7.8 To take following items into account before a long idle period.................................................................................... 30
8 Troubleshooting 32
8.1 Symptoms that are NOT system malfunctions............................................................................................................... 34
8.1.1 Symptom: A sound like water flowing is heard ............................................................................................. 34
8.1.2 Symptom: A blowing sound is heard.............................................................................................................. 34
8.1.3 Symptom: A ticking sound is heard................................................................................................................ 34
8.1.4 Symptom: A whistling sound is heard............................................................................................................ 34
8.1.5 Symptom: A clicking sound during operation or idle time is heard .............................................................. 34
8.1.6 Symptom: A clapping sound is heard............................................................................................................. 34
8.1.7 Symptom: White mist comes out of a unit (Indoor unit) .............................................................................. 34
8.1.8 Symptom: The units can give off odours ....................................................................................................... 34
8.1.9 Symptom: The outdoor fan rotates while the air conditioner is not in operation ....................................... 35
8.2 Solving problems based on error codes ......................................................................................................................... 35