Daikin D-Series User Manual

Daikin D-Series

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Caution for Diagnosis Si18-525B

316 Troubleshooting

1.4 Troubleshooting with the LED on the BP Unit

LEDA(H1P)

LED1(H2P)

LED2(H3P)

LED3(H4P)

LED4(H5P)

(Q0395)

Table of Contents

Table of Contents4
Introduction9
- Safety Cautions9
- Used Icons13
Part 1 List of Functions14
List of Functions15
- Cooling Only15
- Heat Pump26
Part 2 Specifications34
Specifications35
- Cooling Only35
- Heat Pump55
Part 3 Printed Circuit Board Connector Wiring Diagram72
Printed Circuit Board Connector Wiring Diagram73
- Outdoor Unit73
- Branch Provider Unit79
- Wall Mounted Type80
- Duct Connected Type89
- Floor / Ceiling Suspended Dual Type91
- Floor Standing Type94
- Ceiling Mounted Cassette Type (600×600)97
- Ceiling Mounted Cassette Type (950×950)100
- Ceiling Mounted Built-In Type103
- Ceiling Suspended Type105
Part 4 Refrigerant Circuit108
Refrigerant Circuit109
- Outdoor Units109
- Refrigerant Circuit Part109
- BP Units111
Functional Parts Layout112
- Outdoor Units112
Refrigerant Flow for each Operation Mode113
- Cooling Operation113
- Heating Operation114
- Cooling Oil Return Operation115
- Heating Oil Return Operation & Defrost Operation116
Part 5 Function118
Operation Mode120
Basic Control121
- Normal Operation121
- Compressor PI Control122
- Electronic Expansion Valve PI Control125
- Cooling Operation Fan Control126
Special Control127
- Startup Control127
- Oil Return Operation128
- Defrosting Operation130
- Pump-Down Residual Operation131
- Restart Standby131
- Stopping Operation132
- Pressure Equalization Prior to Startup132
Protection Control133
- High Pressure Protection Control133
- Low Pressure Protection Control135
- Discharge Pipe Protection Control136
- Inverter Protection Control137
- Freeze-Up Protection Control138
- Dew Condensation Prevention Control139
Other Control140
- Demand Operation140
- Heating Operation Prohibition140
BP Unit Control141
- BP Unit Command Conversion141
- BP Unit Electronic Expansion Valve Control142
- SH Control in Cooling Operation144
- SC Control in Heating Operation145
- Heat Exchanger Isothermal Control in Heating Operation145
Indoor Unit (RA Models)146
- Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing146
- Fan Speed Control for Indoor Units147
- Programme Dry Function148
- Automatic Operation149
- Thermostat Control150
- Night Set Mode151
- ECONO Mode152
- MOLD PROOF Operation152
- Intelligent Eye153
- HOME LEAVE Operation155
- Inverter POWERFUL Operation156
- 7.12 Other Functions157
Indoor Unit (Skyair Models)159
- Function Outline159
- Electric Function Parts160
- Function Details161
Part 6 Test Operation172
Test Operation173
- Procedure and Outline173
Outdoor Unit PCB Layout178
Field Setting179
- Field Setting from Outdoor Unit179
- Detail of Setting Mode185
Field Setting for Skyair Indoor Unit195
- Explanation195
- Field Setting196
- Initial Setting Contents197
- Local Setting Mode Number198
- Detailed Explanation of Setting Modes199
- Centralized Group No. Setting203
- Maintenance Mode Setting204
Test Operation and Field Setting for RA Indoor Unit205
- Test Operation from the Remote Controller205
- Jumper Settings206
Part 7 System Configuration208
System Configuration209
- Operation Instructions209
Instruction210
- Outdoor Units210
- Wall Mounted, Duct, Floor/Ceiling, Floor Standing, Wall Built-In Type211
- Wall Mounted, Duct, Floor/Ceiling, Floor Standing211
- Wall Built-In Type211
- Ceiling Mounted Cassette Type291
- Ceiling Mounted Built-In Type302
- Ceiling Suspended Type312
Part 8 Troubleshooting324
Caution for Diagnosis326
- Troubleshooting with Operation Lamp326
- Troubleshooting with the LED on the Skyair Indoor Unit327
- Troubleshooting with the LED on the Outdoor Unit328
- Troubleshooting with the LED on the BP Unit329
Service Check Function330
- RA Indoor Unit Wireless Remote Controller330
- Skyair Indoor Unit INSPECTION/TEST Button333
- Skyair Indoor Unit Wired Remote Controller334
- Skyair Indoor Unit Wireless Remote Controller335
- Sky Air Indoor Unit Error Codes and LED Indication337
- Malfunction Code Indication by Outdoor Unit PCB338
List of Malfunction Code340
Troubleshooting for RA Indoor Unit342
- Indoor Unit PCB Abnormality342
- Freeze-Up Protection Control or High Pressure Control343
- Fan Motor or Related Abnormality345
- Thermistor or Related Abnormality (Indoor Unit)348
- Shutter Drive Motor / Shutter Limit Switch Abnormality349
- Check350
Troubleshooting for Skyair Indoor Unit353
- Indoor Unit PCB Abnormality353
- Malfunction of Drain Water Level System (Float Type)354
- Malfunction of Drain System356
- Indoor Unit Fan Motor Lock357
- Malfunction of Indoor Unit Fan Motor358
- Swing Flap Motor Malfunction / Lock360
- Malfunction of Capacity Setting362
- Malfunction of Heat Exchanger Thermistor (R2T)363
- Malfunction of Heat Exchanger Thermistor (R3T)364
- Malfunction of Suction Air Thermistor365
- Malfunction of Remote Controller Thermistor366
- Transmission Error (between Indoor Unit and Remote Controller)367
- Transmission Error (between Main and Sub Remote Controller)368
- Malfunction of Field Setting Switch369
- 5.15 Check370
Troubleshooting for BP Unit372
- Malfunction of Electronic Expansion Valve372
- Faulty BP Unit PCB373
- Faulty BP Liquid or Gas Pipe Thermistor374
- Transmission Error between Indoor Unit and BP Unit375
- Transmission Error between Outdoor Unit and BP Unit377
- Check378
Troubleshooting for Outdoor Unit379
- Faulty Outdoor Unit PCB379
- Actuation of High Pressure Switch380
- Actuation of Low Pressure Switch381
- Compressor Motor Lock382
- Malfunction of Outdoor Unit Fan Motor383
- Malfunction of Moving Part of Electronic Expansion Valve384
- Abnormal Discharge Pipe Temperature385
- Malfunction of Thermistor for Outdoor Air (R1T)386
- Malfunction of Discharge Pipe Thermistor (R3T)387
- Malfunction of Thermistor (R2T) for Suction Pipe388
- Malfunction of Thermistor (R4T) for Outdoor Unit Heat Exchanger389
- Malfunction of Receiver Gas Pipe Thermistor (R5T)390
- Outdoor Unit: Malfunction of High Pressure Sensor391
- Malfunction of Low Pressure Sensor392
- Malfunction of Inverter Radiating Fin Temperature Rise393
- Inverter Compressor Abnormal394
- Inverter Current Abnormal395
- Inverter Start up Error396
- Malfunction of Transmission between Inverter and Control PCB397
- Malfunction of Inverter Radiating Fin Temperature Rise Sensor399
- Faulty Combination of Inverter and Fan Driver400
- Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure401
- Power Supply Insufficient or Instantaneous Failure402
- 7.24 Check Operation Not Executed404
- Malfunction in Other Indoor Unit or Other BP Unit405
- Mismatching of Indoor Unit, BP Unit and Outdoor Unit406
- Refrigerant System Not Set, Incompatible Wiring/Piping407
- Malfunction of System, Refrigerant System Address Undefined408
Check409
Thermistor Resistance / Temperature Characteristics411
10.Pressure Sensor413
Part 9 Removal Procedure414
Outdoor Unit415
- Removal of Outer Panels415
- Removal of PCB422
- Removal of Solenoid Valve, Four Way Valve and Motorized Valve433
- Removal of Thermistor Assembly434
- Removal of Fan Motor435
BP Unit438
- Removal of PCB438
- Removal of Solenoid Valve Coil441
Part 10 Appendix444
Piping Diagrams445
- Outdoor Units445
- BP Units446
- Indoor Units447
Wiring Diagrams455
- Outdoor Units455
- BP Units458
- Indoor Units460
Index470
Drawings & Flow Charts476

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Daikin D-Series Specifications

General

HSPF Rating	Up to 10.0
Cooling Capacity	9, 000 - 36, 000 BTU/h
Heating Capacity	9, 000 - 36, 000 BTU/h
Energy Efficiency Ratio (EER)	Up to 12.5
Sound Level	19 - 50 dB (Indoor), 49 - 60 dB (Outdoor)
Noise Level	19 - 50 dB (Indoor), 49 - 60 dB (Outdoor)
Power Supply	208/230V, 1-phase, 60Hz

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