Daikin FTXS25D2VML Manuals

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Daikin FTXS25D2VML Service Manual

Daikin FTXS25D2VML Service Manual (228 pages)

Brand: Daikin | Category: Air Conditioner | Size: 14 MB

Table of Contents

Table of Contents
3
Introduction
6
- Safety Cautions
  6
Part 1 List of Functions
10
List of Functions
11
Part 2 Specifications
16
- Cooling Only
  17
- Heat Pump
  30
Part 3 Printed Circuit Board Connector Wiring Diagram
48
Printed Circuit Board Connector Wiring Diagram
49
- Indoor Unit
  49
- Outdoor Unit
  51
Function and Control
54
Main Functions
55
- Frequency Principle
  55
- Air Flow Direction Control
  57
- Fan Speed Control for Indoor Units
  58
- Programme Dry Function
  59
- Automatic Operation
  60
- Thermostat Control
  61
- NIGHT SET Mode
  62
- ECONO Mode
  63
- Intelligent Eye
  64
- Inverter POWERFUL Operation
  66
- Other Functions
  67
Function of Thermistor
68
- Heat Pump Model
  68
- Cooling Only Model
  69
Control Specification
70
- Mode Hierarchy
  70
- Frequency Control
  71
- Controls at Mode Changing / Start-Up
  73
- Discharge Pipe Control
  74
- Input Current Control
  75
- Freeze-Up Protection Control
  76
- Heating Peak-Cut Control
  76
- Fan Control
  77
- Liquid Compression Protection Function 2
  77
- Defrost Control
  78
- Electronic Expansion Valve Control
  79
- Malfunctions
  82
- Forced Operation Mode
  83
- Additional Function
  83
- Facility Setting Jumper (Cooling at Low Outdoor Temperature)
  84
Part 5 System Configuration
86
System Configuration
87
Instruction
88
- Safety Precautions
  88
  - Installation Site
    89
  - Electrical Work
    89
- Names of Parts
  90
- Remote Control
  92
- Preparation before Operation
  93
- To Set the Clock
  95
- AUTO · DRY · COOL · HEAT · FAN Operation
  96
- To Change the Air Flow Rate Setting
  97
- Adjusting the Air Flow Direction
  98
- POWERFUL Operation
  100
- OUTDOOR UNIT SILENT Operation
  101
- ECONO Operation
  102
- INTELLIGENT EYE Operation
  103
- TIMER Operation
  105
  - To Use on Timer Operation
    106
  - To Combine on Timer and off Timer
    106
- Care and Cleaning
  107
  - Air Filter
    108
  - Before a Long Idle Period
    109
- Troubleshooting
  110
  - Check Again
    111
  - Call the Service Shop Immediately
    112
  - Fault Diagnosis
    113
Part 6 Service Diagnosis
114
Caution for Diagnosis
115
Problem Symptoms and Measures
116
Service Check Function
117
Troubleshooting
120
- Error Codes and Description
  120
- Indoor Unit PCB Abnormality
  121
- Freeze-Up Protection Control or High Pressure Control
  122
- Fan Motor (DC Motor) or Related Abnormality
  124
- Thermistor or Related Abnormality (Indoor Unit)
  126
- Signal Transmission Error (between Indoor and Outdoor Unit)
  127
- Unspecified Voltage (between Indoor and Outdoor Units)
  128
- Outdoor Unit PCB Abnormality
  129
- OL Activation (Compressor Overload)
  130
- Compressor Lock
  131
- DC Fan Lock
  132
- Input over Current Detection
  133
- Four Way Valve Abnormality
  134
- Discharge Pipe Temperature Control
  136
- High Pressure Control in Cooling
  137
- Compressor System Sensor Abnormality
  139
- Position Sensor Abnormality
  140
- DC Voltage / Current Sensor Abnormality
  141
- Thermistor or Related Abnormality (Outdoor Unit)
  142
- Electrical Box Temperature Rise
  144
- Radiation Fin Temperature Rise
  146
- Output over Current Detection
  148
- Insufficient Gas
  150
- Over-Voltage Detection
  152
Check
153
- How to Check
  153
- Fan Motor Connector Output Check
  153
- Electronic Expansion Valve Check
  153
- Four Way Valve Performance Check
  154
- Thermistor Resistance Check
  155
- Installation Condition Check
  156
- Discharge Pressure Check
  156
- Outdoor Unit Fan System Check
  157
- Power Supply Waveforms Check
  157
- Power Transistor Check
  158
Part 7 Removal Procedure
160
Indoor Unit
161
- Removal of Air Filter
  161
- Removal of Front Panel
  163
- Removal of Front Grille
  165
- Removal of Horizontal Blades and Vertical Blades
  168
- Removal of Electrical Box
  171
- Removal of PCB
  174
- Removal of Drain Pan Unit
  180
- Removal of Fan Motor
  184
- Removal of Heat Exchanger
  186
- Removal of Fan Rotor
  189
Outdoor Unit
192
- Removal of Panels and Fan Motor
  192
- Removal of Electrical Box
  199
- Removal of Reactor and Partition Plate
  201
- Removal of Sound Blanket
  203
- Removal of Four Way Valve
  205
- Removal of Compressor
  207
- Removal of PCB
  209
Part 8 Others
212
Others
213
- Test Run from the Remote Controller
  213
- Jumper Settings
  214
Part 9 Appendix
216
Piping Diagrams
217
- Indoor Units
  217
- Outdoor Units
  218
Wiring Diagrams
220
- Indoor Units
  220
- Outdoor Units
  220
Index
222
Drawings & Flow Charts
226

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