Daikin ARXH20CVMB7 Manuals

Manuals and User Guides for Daikin ARXH20CVMB7. We have 1 Daikin ARXH20CVMB7 manual available for free PDF download: Service Manual

Daikin ARXH20CVMB7 Service Manual

Daikin ARXH20CVMB7 Service Manual (248 pages)

Inverter Pair Wall Mounted Type C-Series D-Series

Brand: Daikin | Category: Air Conditioner | Size: 15 MB

Table of Contents

Wall Mounted Type
1
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
  13
- Non-Lnverter Models
  16
Part 2 Specifications
18
Specifications
19
- Cooling Only
  19
- Heat Pump
  25
Part 3 Printed Circuit Board Connector Wiring Diagram
38
Printed Circuit Board Connector Wiring Diagram
39
Part 4 Function and Control
44
Main Functions
45
- Frequency Principle
  45
- Power-Airflow Dual Flaps, Wide-Angle Louvres and Auto-Swing
  47
- Fan Speed Control for Indoor Units
  48
- Programme Dry Function
  49
- Automatic Operation
  50
- NIGHT SET Mode
  51
- Intelligent Eye
  52
- HOME LEAVE Operation
  54
- Inverter POWERFUL Operation
  55
- Other Functions
  56
Function of Thermistor
57
- Heat Pump Model
  57
- Cooling Only Model
  58
Control Specification
59
- Mode Hierarchy
  59
- Frequency Control
  60
- Controls at Mode Changing / Start-Up
  62
- Discharge Pipe Control
  63
- Input Current Control
  64
- Freeze-Up Protection Control
  64
- Heating Peak-Cut Control
  65
- Fan Control
  65
- Liquid Compression Protection Function 2
  65
- Defrost Control
  66
- Electronic Expansion Valve Control
  67
- Target Discharge Pipe Temperature Control
  69
- Malfunctions
  70
- Forced Operation Mode
  71
- Additional Function
  71
- Facility Setting Jumper (Cooling at Low Outdoor Temperature)
  72
Part 5 System Configuration
74
System Configuration
75
Instruction
76
- Safety Precautions
  76
  - Installation Site
    77
  - Electrical Work
    77
- Names of Parts
  78
- Outdoor Unit
  79
- Remote Control
  80
- Preparation before Operation
  81
- To Set the Clock
  83
- Auto Dry Cool Heat Fan Operation
  84
- To Change the Air Flow Rate Setting
  85
- Adjusting the Air Flow Direction
  86
- POWERFUL Operation
  88
- OUTDOOR UNIT SILENT Operation
  89
- HOME LEAVE Operation
  90
- INTELLIGENT EYE Operation
  92
- TIMER Operation
  94
  - To Use on Timer Operation
    95
  - To Combine on Timer and off Timer
    95
- Care and Cleaning
  96
  - Air Filter
    97
  - Before a Long Idle Period
    98
- Troubleshooting
  99
Part 6 Service Diagnosis
104
Caution for Diagnosis
105
Problem Symptoms and Measures
106
Service Check Function
107
Troubleshooting
110
- Error Codes and Description
  110
- Indoor Unit PCB Abnormality
  111
- Freeze-Up Protection Control or High Pressure Control
  112
- Fan Motor (AC Motor) or Related Abnormality
  114
- Thermistor or Related Abnormality (Indoor Unit)
  115
- Signal Transmission Error (between Indoor and Outdoor Unit)
  116
- OL Activation (Compressor Overload)
  117
- Compressor Lock
  118
- DC Fan Lock
  119
- Input over Current Detection
  120
- Four Way Valve Abnormality
  121
- Discharge Pipe Temperature Control
  123
- High Pressure Control in Cooling
  124
- Position Sensor Abnormality
  126
- DC Voltage / Current Sensor Abnormality
  127
- Thermistor or Related Abnormality (Outdoor Unit)
  128
- Electrical Box Temperature Rise
  130
- Radiation Fin Temperature Rise
  132
- Output over Current Detection
  134
- Insufficient Gas
  136
- Over-Voltage Detection
  138
Check
139
- How to Check
  139
- Four Way Valve Performance Check
  140
- Thermistor Resistance Check
  141
- Installation Condition Check
  142
- Discharge Pressure Check
  142
- Outdoor Unit Fan System Check
  143
- Power Supply Waveforms Check
  144
- Inverter Units Refrigerant System Check
  144
- Power Transistor Check
  145
- Hall IC Check
  146
Part 7 Removal Procedure
148
Indoor Unit
149
- Removal of Air Filter
  149
- Removal of Front Grille
  152
- Removal of Horizontal Blade and Vertical Blade
  155
- Removal of Switch Box, PC Board and Swing Motor
  157
- Removal of Heat Exchanger
  163
- Install of Drain Plug
  166
- Removal of Fan Rotor and Fan Motor
  167
Outdoor Unit / ARK(X)S-C
171
- Removal of Panels and Fan Motor
  171
- Removal of Electrical Box
  178
- Removal of Reactor and Partition Plate
  180
- Removal of Sound Blanket
  182
- Removal of Four Way Valve
  184
- Removal of Compressor
  186
- Removal of PCB
  188
Outdoor Unit / RK(X)H-C, ARK(X)H-C, R(Y)N-C
191
- Removal of External Panels
  191
- Removal of Bell Mouth
  194
- Removal of PCB
  195
- Removal of Electrical Box
  203
- Removal of Propeller Fan and Fan Motor
  206
- Removal of Compressor Sound Insulation Pad
  209
- Removal of Compressor
  218
- Removal of Four Way Valve
  221
- Removal of Electronic Expansion Valve
  224
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
238
- Indoor Units
  238
- Outdoor Units
  239
Index
242
Drawings & Flow Charts
246

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