Table Of Contents - Daikin FXFN50A2VEB Installer And User Reference Manual

Table of contents

Installer and user reference guide
2
Table of contents
1 About the documentation
1.1 About this document ......................................................................................................................................................
2 General safety precautions
2.1 About the documentation ..............................................................................................................................................
2.1.1 Meaning of warnings and symbols ................................................................................................................
2.2 For the installer ...............................................................................................................................................................
2.2.1 General ...........................................................................................................................................................
2.2.2 Installation site ...............................................................................................................................................
2.2.3 Refrigerant - in case of R744........................................................................................................................
2.2.4 Electrical .........................................................................................................................................................
3 Specific installer safety instructions
For the user
4 User safety instructions
4.1 General............................................................................................................................................................................ 15
4.2 Instructions for safe operation ....................................................................................................................................... 16
5 About the system
5.1 System layout.................................................................................................................................................................. 20
5.2 Information requirements for fan coil units................................................................................................................... 22
6 User interface
7 Before operation
8 Operation
8.1 Operation range.............................................................................................................................................................. 25
8.2 About operation modes.................................................................................................................................................. 25
8.2.1 Basic operation modes ................................................................................................................................... 25
8.2.2 Special heating operation modes................................................................................................................... 26
8.2.3 Adjusting the airflow direction....................................................................................................................... 26
8.2.4 Active circulation airflow................................................................................................................................ 27
8.3 To operate the system.................................................................................................................................................... 27
9 Energy saving and optimum operation
10 Maintenance and service
10.1 Precautions for maintenance and service...................................................................................................................... 29
10.2 Cleaning the air filter, suction grille, air outlet and outside panels............................................................................... 30
10.2.1 To clean the air filter ...................................................................................................................................... 30
10.2.2 To clean the suction grille .............................................................................................................................. 31
10.2.3 To clean the air outlet and outside panels .................................................................................................... 32
10.3 Maintenance before a long stop period......................................................................................................................... 33
10.4 Maintenance after a long stop period............................................................................................................................ 33
10.5 About the refrigerant...................................................................................................................................................... 33
10.5.1 About refrigerant leak detection ................................................................................................................... 34
11 Troubleshooting
11.1 Symptoms that are NOT system malfunctions............................................................................................................... 36
11.1.1 Symptom: The system does not operate....................................................................................................... 36
11.1.2 Symptom: The fan speed does not correspond to the setting...................................................................... 36
11.1.3 Symptom: The fan direction does not correspond to the setting................................................................. 36
11.1.4 Symptom: White mist comes out of a unit (Indoor unit) .............................................................................. 37
11.1.5 Symptom: White mist comes out of a unit (Indoor unit, outdoor unit)........................................................ 37
11.1.6 Symptom: The user interface reads "U4" or "U5" and stops, but then restarts after a few minutes.......... 37
11.1.7 Symptom: Noise of air conditioners (Indoor unit)......................................................................................... 37
11.1.8 Symptom: Noise of air conditioners (Indoor unit, outdoor unit) .................................................................. 37
11.1.9 Symptom: Dust comes out of the unit........................................................................................................... 37
11.1.10 Symptom: The units can give off odours ....................................................................................................... 37
11.1.11 Symptom: In winter, indoor unit generates cold air and fan is turned ON regardless of setting ................ 38
12 Relocation
13 Disposal
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FXFN50~112A2VEB
CO₂ Conveni-Pack: indoor unit
4P677925-1 - 2021.07