User Manuals: Daikin FTX-U Series Air Conditioner

Manuals and User Guides for Daikin FTX-U Series Air Conditioner. We have 1 Daikin FTX-U Series Air Conditioner manual available for free PDF download: Service Manual

Daikin FTX-U Series Service Manual

Daikin FTX-U Series Service Manual (242 pages)

Inverter Pair: Wall Mounted Type, Floor Standing Type, Duct Connected Type.

Brand: Daikin | Category: Air Conditioner | Size: 23 MB

Table of Contents

Table of Contents
2
Introduction

6
Part 1 General Information

14
- Applicable Models
  15
- Functions
  16
Part 2 Specifications

18
- Specifications
  19
Part 3 Printed Circuit Board Connector Wiring Diagram

26
- Indoor Unit
  27
  - Ftx09/12Nmvju
    27
  - Ftx15Nmvju
    29
  - Ftx18/24Uvju
    31
  - Fvxs09/12/15Nvju
    33
  - Fdmq12/18/24Rvju
    35
- Wireless Remote Controller Receiver
  37
  - Brc082A43
    37
- Wired Remote Controller
  38
  - Brc1E73
    38
- Outdoor Unit
  39
  - Rxl09Qmvju
    39
  - Rxl12Qmvju(9)
    41
  - Rxl15Qmvju
    43
  - Rxl18/24Umvju
    44
- Optional Adaptor
  47
  - BRP072A43 Wireless LAN Adaptor
    47
  - KRP067A41/KRP980B2 Remote Control PC-Board Set
    47
Part 4 Functions and Control

48
- Common Functions
  49
  - Temperature Control
    49
  - Frequency Principle
    49
- Functions for FTX, FVXS Series
  51
  - Airflow Direction Control
    51
  - COMFORT AIRFLOW Operation
    54
  - Fan Speed Control for Indoor Unit
    55
  - Program Dry Operation
    56
  - Automatic Cooling/Heating Changeover
    57
  - Thermostat Control
    58
  - NIGHT SET Mode
    59
  - ECONO Operation
    60
  - INTELLIGENT EYE Operation
    61
  - POWERFUL Operation
    62
  - Clock Setting
    63
  - WEEKLY TIMER Operation
    64
  - Other Functions
    70
- Functions for FDMQ Series
  71
- Thermistor Functions
  82
- Control Specification
  83
  - Mode Hierarchy
    83
  - Frequency Control
    83
  - Controls at Mode Changing/Start-Up
    85
  - Discharge Pipe Temperature Control
    87
  - Input Current Control
    88
  - Freeze-Up Protection Control
    89
  - Heating Peak-Cut Control
    89
  - Outdoor Fan Control
    90
  - Liquid Compression Protection Function
    90
  - Defrost Control
    91
  - Electronic Expansion Valve Control
    92
  - Malfunctions
    95
Part 5 Remote Controller

96
- Applicable Remote Controller
  97
- Arc466A21
  98
- Arc466A37
  100
- Arc480A8
  102
- Brc082A43
  103
- Brc1E73
  105
Part 6 Service Diagnosis

111
- General Problem Symptoms and Check Items
  113
- Troubleshooting with LED
  114
  - Indoor Unit
    114
  - Outdoor Unit
    115
- Service Diagnosis
  116
  - ARC480 Series
    116
  - ARC466 Series
    119
  - Brc1E73
    122
  - Brc082A43
    124
- Error Codes and Description
  128
- Troubleshooting for FTX, FVXS Series
  129
- Troubleshooting for FDMQ Series
  143
- Troubleshooting for Outdoor Unit
  158
  - Outdoor Unit PCB Abnormality
    158
  - OL Activation (Compressor Overload)
    159
  - Compressor Lock
    162
  - DC Fan Lock
    163
  - Input Overcurrent Detection
    164
  - Four Way Valve Abnormality
    166
  - Discharge Pipe Temperature Control
    168
  - High Pressure Control in Cooling
    170
  - System Shutdown Due to Temperature Abnormality in the Compressor
    172
  - Compressor Sensor System Abnormality
    173
  - Position Sensor Abnormality
    174
  - Thermistor or Related Abnormality (Outdoor Unit)
    177
  - Electrical Box Temperature Rise
    179
  - Radiation Fin Temperature Rise
    181
  - Output Overcurrent Detection
    183
  - Signal Transmission Error on Outdoor Unit PCB
    185
- Check
  186
  - Thermistor Resistance Check
    186
  - Indoor Fan Motor Connector Check
    187
  - Power Supply Waveform Check
    189
  - Electronic Expansion Valve Check
    189
  - Four Way Valve Performance Check
    190
  - Inverter Unit Refrigerant System Check
    190
  - Inverter Analyzer Check
    191
  - Rotation Pulse Check on the Outdoor Unit PCB
    194
  - Installation Condition Check
    195
  - Discharge Pressure Check
    195
  - Outdoor Fan System Check
    196
  - Main Circuit Short Check
    196
  - Power Module Check
    199
Part 7 Trial Operation and Field Settings

202
- Pump down Operation
  203
- Forced Cooling Operation
  204
- Trial Operation
  207
- Field Settings for FTX, FVXS Series
  211
  - Temperature Display Switch
    211
  - When 2 Units Are Installed in 1 Room
    212
  - Jumper and Switch Settings
    214
- Field Settings for FDMQ Series
  215
- Field Settings for Outdoor Unit
  222
  - Facility Setting (Cooling at Low Outdoor Temperature)
    222
  - Drain Pan Heater
    223
- Silicone Grease on Power Transistor/Diode Bridge
  224
Part 8 Appendix

225
- Piping Diagrams
  226
  - Indoor Unit
    226
  - Outdoor Unit
    228
- Wiring Diagrams
  231
  - Indoor Unit
    231
  - Outdoor Unit
    236
- Operation Limit
  241

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