User Manuals: Daikin RXH20CAVMB Mounted Air Conditioner

Manuals and User Guides for Daikin RXH20CAVMB Mounted Air Conditioner. We have 1 Daikin RXH20CAVMB Mounted Air Conditioner manual available for free PDF download: Service Manual

Daikin RXH20CAVMB Service Manual

Daikin RXH20CAVMB Service Manual (246 pages)

Inverter Pair Wall Mounted Type

Brand: Daikin | Category: Air Conditioner | Size: 13 MB

Table of Contents

Table of Contents
3
Introduction
6
- Safety Cautions
  6
Part 1 List of Functions

10
- List of Functions Part
  10
- List of Functions
  11
  - High Grade Models
    11
  - Standard Grade Models
    14
  - Non-Lnverter Models
    18
Part 2 Specifications

20
- Cooling Only
  21
- Ftks25Cvmb(9)(8)
  21
- Heat Pump
  29
- Ftxs35Cvmb(9)(8)
  30
Part 3 Printed Circuit Board Connector Wiring Diagram

46
- Printed Circuit Board Connector Wiring Diagram
  47
Part 4 Function and Control

52
- Main Functions
  53
  - Frequency Principle
    53
  - Power-Airflow Dual Flaps, Wide-Angle Louvres and Auto-Swing
    55
  - Fan Speed Control for Indoor Units
    56
  - Programme Dry Function
    57
  - Automatic Operation
    58
  - NIGHT SET Mode
    59
  - Intelligent Eye
    60
  - HOME LEAVE Operation
    62
  - Inverter POWERFUL Operation
    63
  - Other Functions
    64
- Function of Main Structural Parts
  65
  - Function of Thermistor
    65
  - Cooling Only Model
    66
- Control Specification
  67
  - Mode Hierarchy
    67
  - Frequency Control
    68
  - Controls at Mode Changing / Start-Up
    70
  - Discharge Pipe Control
    71
  - Input Current Control
    72
  - Freeze-Up Protection Control
    72
  - Heating Peak-Cut Control
    73
  - Fan Control
    73
  - Liquid Compression Protection Function 2
    73
  - Defrost Control
    74
  - Electronic Expansion Valve Control
    75
  - Malfunctions
    78
  - Forced Operation Mode
    79
  - Additional Function
    79
  - Facility Setting Jumper (Cooling at Low Outdoor Temperature)
    80
Part 5 System Configuration

82
- System Configuration
  83
- Instruction
  84
  - Safety Precautions
    84
    
    Installation Site
    85
    
    Electrical Work
    85
  - Names of Parts
    86
    
    Outdoor Unit
    87
    
    Remote Control
    88
  - Preparation before Operation
    89
  - Auto Dry Cool Heat Fan Operation
    92
  - Adjusting the Air Flow Direction
    94
  - POWERFUL Operation
    96
  - OUTDOOR UNIT SILENT Operation
    97
  - HOME LEAVE Operation
    98
  - INTELLIGENT EYE Operation
    100
  - TIMER Operation
    102
  - Care and Cleaning
    104
    
    Air Filter
    105
    
    Before a Long Idle Period
    106
  - Troubleshooting
    107
  - Check Again
    108
Part 6 Service Diagnosis

112
- Caution for Diagnosis
  113
- Problem Symptoms and Measures
  114
- Service Check Function
  115
- Troubleshooting
  118
  - Error Codes and Description
    118
  - Indoor Unit PCB Abnormality
    119
  - Freeze-Up Protection Control or High Pressure Control
    120
  - Fan Motor (AC Motor) or Related Abnormality
    122
  - Thermistor or Related Abnormality (Indoor Unit)
    123
  - Signal Transmission Error (between Indoor and Outdoor Unit)
    124
  - OL Activation (Compressor Overload)
    125
  - Compressor Lock
    126
  - DC Fan Lock
    127
  - Input over Current Detection
    128
  - Four Way Valve Abnormality
    129
  - Discharge Pipe Temperature Control
    131
  - High Pressure Control in Cooling
    132
  - Position Sensor Abnormality
    134
  - DC Voltage / Current Sensor Abnormality
    135
  - Thermistor or Related Abnormality (Outdoor Unit)
    136
  - Electrical Box Temperature Rise
    138
  - Radiation Fin Temperature Rise
    140
  - Output over Current Detection
    142
  - Insufficient Gas
    144
  - Over-Voltage Detection
    146
- Check
  147
  - How to Check
    147
    
    Four Way Valve Performance Check
    148
    
    Thermistor Resistance Check
    149
    
    Installation Condition Check
    150
    
    Discharge Pressure Check
    150
    
    Outdoor Unit Fan System Check
    151
    
    Power Supply Waveforms Check
    152
    
    Power Transistor Check
    153
    
    Hall IC Check
    154
Part 7 Removal Procedure

156
- Indoor Unit
  157
  - Removal of Air Filter
    157
  - Removal of Front Grille
    160
  - Removal of Horizontal Blade and Vertical Blade
    163
  - Removal of Electrical Box, PCB and Swing Motor
    165
  - Removal of Heat Exchanger
    171
  - Install of Drain Plug
    174
  - Removal of Fan Rotor and Fan Motor
    175
- Outdoor Unit / RK(X)S-C, ARK(X)S-C
  179
  - Removal of Panels and Fan Motor
    179
  - Removal of Electrical Box
    186
  - Removal of Reactor and Partition Plate
    188
  - Removal of Sound Blanket
    190
  - Removal of Four Way Valve
    192
  - Removal of Compressor
    194
  - Removal of PCB
    196
- Outdoor Unit / RK(X)H-C, ARK(X)H-C, R(Y)N-C
  199
Part 8 Others

226
- Others
  227
  - Test Run from the Remote Control
    227
  - Jumper Settings
    228
Part 9 Appendix

230
- Piping Diagrams
  231
  - Indoor Units
    231
  - Outdoor Units
    232
- Wiring Diagrams
  236
  - Indoor Units
    236
  - Outdoor Units
    237
Index

240

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