Daikin FTXS09DVJU Service Manual

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Contents

Daikin FTXS09DVJU Service Manual Manual pdf 4 page image

SiUS04-702Table of Contents iii3.14 Additional Function.................................................................................... 464. Control Specification (15/18/24 Class)..................................................... 474.1 Mode Hierarchy ......................................................................................... 474.2 Frequency Control..................................................................................... 484.3 Controls at Mode Changing / Start-up....................................................... 504.4 Discharge Pipe Temperature Control........................................................ 514.5 Input Current Control................................................................................. 524.6 Freeze-up Protection Control .................................................................... 534.7 Heating Peak-cut Control .......................................................................... 534.8 Fan Control................................................................................................ 544.9 Liquid Compression Protection Function 2................................................ 544.10 Low Hz High Pressure Limit ...................................................................... 554.11 Defrost Control .......................................................................................... 554.12 Electronic Expansion Valve Control .......................................................... 564.13 Malfunctions .............................................................................................. 594.14 Forced Operation Mode ............................................................................ 604.15 Additional Function.................................................................................... 60Part 5 Operation Manual ................................................................611. System Configuration............................................................................... 622. Instruction................................................................................................. 632.1 Safety Precautions .................................................................................... 632.2 FTXS09/12DVJU....................................................................................... 652.3 FTXS15/18/24DVJU.................................................................................. 90Part 6 Service Diagnosis..............................................................1151. Caution for Diagnosis............................................................................. 1162. Problem Symptoms and Measures ........................................................ 1183. Service Check Function ......................................................................... 1194. Troubleshooting ..................................................................................... 1224.1 Error Codes and Description ................................................................... 1224.2 Indoor Unit PCB Abnormality .................................................................. 1234.3 Freeze-up Protection Control or High Pressure Control.......................... 1244.4 Fan Motor or Related Abnormality .......................................................... 1264.5 Thermistor or Related Abnormality (Indoor Unit)..................................... 1294.6 Signal Transmission Error (between Indoor and Outdoor Unit) .............. 1304.7 OL Activation (Compressor Overload) .................................................... 1324.8 Compressor Lock .................................................................................... 1334.9 DC Fan Lock ........................................................................................... 1354.10 Input Over Current Detection .................................................................. 1364.11 Four Way Valve Abnormality................................................................... 1394.12 Discharge Pipe Temperature Control...................................................... 1434.13 High Pressure Control in Cooling ............................................................ 1454.14 Position Sensor Abnormality ................................................................... 1494.15 DC Voltage / Current Sensor Abnormality............................................... 1514.16 CT or Related Abnormality ...................................................................... 1524.17 Thermistor or Related Abnormality (Outdoor Unit).................................. 154