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Table of Contents
  • Heat pump

    2
  • Safety cautions

    6
  • Model Names of Indoor/Outdoor Units

    13
  • External Appearance

    14
  • Capacity Range

    15
  • Specifications

    17
  • Indoor Units

    19
  • Ceiling suspended type

    35
  • Floor standing type

    38
  • Part 3 List of Electrical and Functional Parts

    44
  • List of Electrical and Functional Parts

    45
  • Refrigerant Circuit

    47
  • Functional Parts Layout

    49
  • Part 5 Function

    50
  • Operation Mode

    51
  • Basic Control

    52
  • Compressor PI Control

    53
  • Electronic Expansion Valve PI Control

    54
  • Cooling Operation Fan Control

    55
  • Special Control

    56
  • Oil Return Operation

    57
  • Defrosting Operation

    59
  • Pump-down Residual Operation

    60
  • Restart Standby

    61
  • Stopping Operation

    62
  • Protection Control

    63
  • Low Pressure Protection Control

    64
  • Discharge Pipe Protection Control

    65
  • Inverter Protection Control

    66
  • Other Control

    67
  • Outline of Control (Indoor Unit)

    68
  • Remote control

    69
  • Louver Control for Preventing Ceiling Dirt

    70
  • Thermostat Sensor in remote control

    71
  • Freeze Prevention

    73
  • View of Operations of Swing Flaps

    74
  • Electronic Expansion Valve Control

    75
  • Test Operation

    77
  • Check operation

    78
  • Operation when Power is Turned On

    80
  • Outdoor Unit PC Board Layout

    81
  • Field Setting

    82
  • Simplified remote control

    84
  • Detailed explanation of setting modes

    87
  • Field Setting from Outdoor Unit

    95
  • Setting of low noise operation and demand operation

    106
  • Setting of refrigerant additional charging operation

    110
  • Troubleshooting

    114
  • Symptom-based Troubleshooting

    116
  • Troubleshooting by Remote Control

    119
  • Self-diagnosis by Wired Remote Control

    120
  • Self-diagnosis by Infrared Remote Control

    121
  • Operation of the remote control's Inspection / Test Operation Button

    123
  • Remote control Service Mode

    124
  • Remote control Self-Diagnosis Function

    126
  • Troubleshooting by Indication on the remote control

    133
  • Pipe

    164
  • Temperature rise

    169
  • Inverter and control pc board

    173
  • Electronic Expansion Valve Failure

    175
  • And outdoor units

    180
  • Control and indoor unit

    182
  • Outdoor units in the same system

    184
  • Troubleshooting by Indication on the Centralized remote control

    192
  • Controllers for centralized control

    194
  • Control

    195
  • Troubleshooting by Indication on the Unified ON/OFF Control

    198
  • 5.3 Display "Under Host Computer Integrate Control" Blinks

    203
  • Part 8 Appendix

    208
  • Piping Diagrams

    209
  • Indoor Unit

    210
  • Wiring Diagrams

    213
  • Field Wiring

    214
  • Option List

    229
  • Option List of Outdoor Unit

    231
  • Example of Connection

    233
  • Thermistor Resistance / Temperature Characteristics

    236
  • Pressure Sensor

    238
  • Method of Replacing the Inverter's Power Transistors Modules

    239
  • Precautions for New Refrigerant (R-410A)

    243
  • Refrigerant Cylinders

    245
  • Service Tools

    246
  • Procedure to Remove Outside Panels

    253
  • Procedure to Remove Propeller Fan and Fan Motor

    256
  • Procedure to Remove Compressor

    258
  • Drawings & flow charts

    264

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