Daikin FFA50A2VEB9 Installer And User Reference Manual

9 Hand-over to the userInstaller and user reference guide21FFA25~60A2VEB(9)Split system air conditioners4P550955-4 – 2018.08# Action Result3 Press. The unit returns to normaloperation, and the homemenu is displayed.8.5 Error codes when performing atest runIf the installation of the outdoor unit has NOT been done correctly,the following error codes may be displayed on the user interface:Error code Possible causeNothing displayed(the currently settemperature is notdisplayed)▪ The wiring is disconnected or there is awiring error (between power supply andoutdoor unit, between outdoor unit andindoor units, between indoor unit anduser interface).▪ The fuse on the outdoor or indoor unitPCB has blown.E3, E4 or L8 ▪ The stop valves are closed.▪ The air inlet or air outlet is blocked.E7 There is a missing phase in case of three-phase power supply units.Note: Operation will be impossible. TurnOFF the power, recheck the wiring, andswitch two of the three electrical wires.L4 The air inlet or air outlet is blocked.U0 The stop valves are closed.U2 ▪ There is a voltage imbalance.▪ There is a missing phase in case ofthree-phase power supply units. Note:Operation will be impossible. Turn OFFthe power, recheck the wiring, and switchtwo of the three electrical wires.U4 or UF The inter-unit branch wiring is not correct.UA The outdoor and indoor unit areincompatible.9 Hand-over to the userOnce the test run is finished and the unit operates properly, pleasemake sure the following is clear for the user:▪ Make sure that the user has the printed documentation and askhim/her to keep it for future reference. Inform the user that he canfind the complete documentation at the URL mentioned earlier inthis manual.▪ Explain the user how to properly operate the system and what todo in case of problems.▪ Show the user what to do for the maintenance of the unit.10 DisposalNOTICEDo NOT try to dismantle the system yourself: dismantlingof the system, treatment of the refrigerant, oil and otherparts MUST comply with applicable legislation. UnitsMUST be treated at a specialised treatment facility forreuse, recycling and recovery.11 Technical data▪ A subset of the latest technical data is available on the regionalDaikin website (publicly accessible).▪ The full set of latest technical data is available on the Daikinextranet (authentication required).11.1 Piping diagram: Indoor unitbaca Liquid pipe connectionb Gas pipe connectionc Heat exchanger