Daikin FTX-W Series - User Manual

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[Applied Models]



Inverter Pair : Cooling Only



Inverter Pair : Heat Pump

Inverter Pair

Wall Mounted Type FTX-W Series

Service

Manual

SiUS042228E

Main Page

Table of Contents2
Introduction5
Safety Cautions6
Warnings and Cautions Regarding Safety of Workers6
Warnings and Cautions Regarding Safety of Users8
Icons Used11
Revision History12
Part 1 General Information13
Applicable Models14
Functions15
Part 2 Specifications16
Specifications17
Cooling Only17
Heat Pump18
Part 3 Printed Circuit Board Connector Wiring Diagram19
Indoor Unit20
Outdoor Unit22
Part 4 Functions and Control24
Main Functions25
Temperature Control25
Frequency Principle25
Airflow Direction Control27
Fan Speed Control for Indoor Unit28
Program Dry Operation29
Automatic Cooling/Heating Changeover30
Thermostat Control31
NIGHT SET Mode32
ECONO Operation32
INTELLIGENT EYE Operation33
POWERFUL Operation35
Clock Setting36
WEEKLY TIMER Operation37
Other Functions43
Thermistor Functions44
Control Specification46
Mode Hierarchy46
Frequency Control47
Controls at Mode Changing/Start-Up49
Four Way Valve Switching49
3-Minute Standby50
Compressor Protection Function50
Discharge Pipe Temperature Control51
Input Current Control52
Freeze-Up Protection Control53
Heating Peak-Cut Control53
High Pressure Protection Control54
Outdoor Fan Control55
Liquid Compression Protection Function55
Defrost Control56
Electronic Expansion Valve Control57
Pressure Equalizing Control58
Target Discharge Pipe Temperature Control60
Malfunctions60
Sensor Malfunction Detection60
Part 5 Remote Controller61
Applicable Remote Controller62
Arc466A3763
Part 6 Service Diagnosis65
General Problem Symptoms and Check Items67
Troubleshooting with LED68
Indoor Unit68
Outdoor Unit68
Service Diagnosis69
Method 169
Method 270
Troubleshooting72
Error Codes and Description72
Indoor Unit PCB Abnormality73
Freeze-Up Protection Control/Heating Peak-Cut Control75
Indoor Fan Motor (DC Motor) or Related Abnormality76
Thermistor or Related Abnormality79
Low-Voltage Detection or Over-Voltage Detection80
Signal Transmission Error (between Indoor Unit and Outdoor Unit)82
Signal Transmission Error on Outdoor Unit PCB84
Mismatching of Indoor Unit and Outdoor Unit85
Outdoor Unit PCB Abnormality86
Actuation of High Pressure Switch87
OL Activation (Compressor Overload)88
Compressor Lock91
DC Fan Lock92
Input Overcurrent Detection93
Four Way Valve Abnormality95
Discharge Pipe Temperature Control97
High Pressure Control in Cooling98
System Shutdown Due to Temperature Abnormality in the Compressor100
Compressor System Sensor Abnormality101
Position Sensor Abnormality102
CT or Related Abnormality105
Thermistor or Related Abnormality (Outdoor Unit)107
Electrical Box Temperature Rise109
Radiation Fin Temperature Rise110
Output Overcurrent Detection112
Check115
Thermistor Resistance Check115
Indoor Fan Motor Connector Check116
Power Supply Waveform Check116
Electronic Expansion Valve Check117
Four Way Valve Performance Check118
Inverter Unit Refrigerant System Check119
Inverter Analyzer Check120
Outdoor Fan Motor Check121
Installation Condition Check122
Discharge Pressure Check122
Outdoor Fan System Check123
Main Circuit Short Check123
Capacitor Voltage Check124
Power Module Check124
Part 7 Trial Operation and Field Settings126
Pump down Operation127
Forced Cooling Operation128
Trial Operation129
Field Settings131
Model Type Settings131
Temperature Display Switch131
When 2 Units Are Installed in 1 Room132
Jumper Settings132
Facility Setting (Cooling at Low Outdoor Temperature)133
Warmer Airflow Setting134
Drain Pan Heater134
Silicone Grease on Power Transistor/Diode Bridge135
Part 8 Appendix136
Piping Diagrams137
Indoor Unit137
Outdoor Unit138
Wiring Diagrams139
Indoor Unit139
Outdoor Unit140
Operation Limit141

Brand	Daikin
Model	FTX-W Series
Category	Air Conditioner
Language	English

Daikin FTX-W Series - User Manual

Table of Contents

Daikin FTX-W Series Specifications

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