Daikin Super Multi Plus D-Series - Page 366

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SiEBE18-526 BP Unit

Removal Procedure 355

6

Disconnect the Faston

terminal of the

grounding cable.

7

Remove the two screws

and take out the PCB.

Step

Procedure Points

(Q0507)

(Q0508)

Table of Contents

Table of Contents3
Introduction8
- Safety Cautions8
Part 1 List of Functions12
List of Functions13
Part 2 Specifications18
Specifications19
- Outdoor Units19
- BP Unit20
- Indoor Units21
- Ceiling Mounted Cassette Type28
Part 3 Printed Circuit Board Connector Wiring Diagram30
Printed Circuit Board Connector Wiring Diagram31
- Outdoor Unit RMXS 112/140/160 D7V3B31
- Branch Provider Unit BPMKS967A2B, B2B, A3B, B3B35
- Wall Mounted Type 20/25/35/50 Class - D Series36
- Wall Mounted Type 20/25/35 Class - C Series38
- Wall Mounted Type 50/60/71 Class - B Series40
- Duct Connected Type42
- Floor / Ceiling Suspended Dual Type43
- Floor Standing Type46
- Ceiling Mounted Cassette 600×600 Type49
- Ceiling Suspended Type51
Part 4 Refrigerant Circuit54
Refrigerant Circuit55
- Rmxs 112/140/160 D7V3B55
- Bpmks 967 A2B, B2B, A3B, B3B57
Functional Parts Layout58
- Rmxs 112/140/160 D7V3B58
Refrigerant Flow for each Operation Mode59
- Cooling Operation59
- Heating Operation60
- Cooling Oil Return Operation61
- Heating Oil Return Operation & Defrost Operation62
Part 5 Function64
Operation Mode65
Basic Control66
- Normal Operation66
- Compressor PI Control67
- Electronic Expansion Valve PI Control70
- Cooling Operation Fan Control71
Special Control72
- Startup Control72
- Oil Return Operation73
- Defrosting Operation75
- Pump-Down Residual Operation76
- Restart Standby76
- Stopping Operation77
- Pressure Equalization Prior to Startup77
Protection Control78
- High Pressure Protection Control78
- Low Pressure Protection Control80
- Discharge Pipe Protection Control81
- Inverter Protection Control82
- Freeze-Up Protection Control83
- Dew Condensation Prevention Control84
Other Control85
- Demand Operation85
- Heating Operation Prohibition85
BP Unit Control86
- BP Unit Command Conversion86
- BP Unit Electronic Expansion Valve Control87
- SH Control in Cooling Operation89
- SC Control in Heating Operation90
- Heat Exchanger Isothermal Control in Heating Operation90
Indoor Unit (RA Models)91
- Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing91
- Fan Speed Control for Indoor Units92
- Programme Dry Function93
- Automatic Operation94
- Thermostat Control95
- Night Set Mode96
- ECONO Mode97
- Intelligent Eye98
- HOME LEAVE Operation100
- Inverter POWERFUL Operation101
- Other Functions102
Indoor Unit (Skyair Models)104
- Function Outline104
- Electric Function Parts105
- Function Details106
Part 6 Test Operation116
Test Operation117
- Procedure and Outline117
- Check Operation120
Outdoor Unit PCB Layout122
Field Setting123
- Field Setting from Outdoor Unit123
- Detail of Setting Mode129
- Image of Operation in the Case of a and B134
Field Setting for Skyair Indoor Unit139
- Explanation139
- Field Setting140
- Initial Setting Contents141
- Wireless Remote Controller141
- Local Setting Mode Number142
- Detailed Explanation of Setting Modes143
- Centralized Group No. Setting147
- Maintenance Mode Setting148
Test Operation and Field Setting for RA Indoor Unit149
- Test Operation from the Remote Controller149
- Jumper Settings150
Part 7 System Configuration152
System Configuration153
- Operation Instructions153
Instruction154
- RMXS Series154
- Wall Mounted, Duct, Floor/Ceiling, Floor Standing Type155
- Outdoor Unit159
- Remote Control160
- Ceiling Mounted Cassette Type227
- Ceiling Suspended Type238
Part 8 Troubleshooting250
Caution for Diagnosis252
- Troubleshooting with the Operation Lamp (RA Indoor Unit)252
- Troubleshooting with the LED on the Skyair Indoor Unit253
- Troubleshooting with the LED on the Outdoor Unit254
- Troubleshooting with the LED on the BP Unit255
Service Check Function256
- RA Indoor Unit Wireless Remote Controller256
- Skyair Indoor Unit INSPECTION/TEST Button259
- Skyair Indoor Unit Wired Remote Controller260
- Skyair Indoor Unit Wireless Remote Controller261
- Sky Air Indoor Unit Error Codes and LED Indication263
- Malfunction Code Indication by Outdoor Unit PCB264
List of Malfunction Code266
Troubleshooting for RA Indoor Unit268
- Indoor Unit PCB Abnormality268
- Freeze-Up Protection Control or High Pressure Control269
- Fan Motor or Related Abnormality271
- Thermistor or Related Abnormality (Indoor Unit)274
- Shutter Drive Motor / Shutter Limit Switch Abnormality275
- Check276
- Thermistor Resistance Check277
- Power Supply Waveforms Check278
- Hall IC Check278
Troubleshooting for Skyair Indoor Unit279
- Indoor Unit PCB Abnormality279
- Malfunction of Drain Water Level System (Float Type)280
- Malfunction of Drain System282
- Indoor Unit Fan Motor Lock283
- Malfunction of Indoor Unit Fan Motor284
- Swing Flap Motor Malfunction / Lock286
- Malfunction of Capacity Setting288
- Malfunction of Heat Exchanger Thermistor (R2T)289
- Malfunction of Heat Exchanger Thermistor (R3T)290
- Malfunction of Suction Air Thermistor291
- Malfunction of Remote Controller Thermistor292
- Transmission Error (between Indoor Unit and Remote Controller)293
- Transmission Error (between Main and Sub Remote Controller)294
- Malfunction of Field Setting Switch295
- Check296
Troubleshooting for BP Unit298
- Malfunction of Electronic Expansion Valve298
- Faulty BP Unit PCB299
- Faulty BP Liquid or Gas Pipe Thermistor300
- Transmission Error between Indoor Unit and BP Unit301
- Transmission Error between Outdoor Unit and BP Unit303
- Check304
Troubleshooting for Outdoor Unit305
- Faulty Outdoor Unit PCB305
- Actuation of High Pressure Switch306
- Actuation of Low Pressure Switch307
- Compressor Motor Lock308
- Malfunction of Outdoor Unit Fan Motor309
- Malfunction of Moving Part of Electronic Expansion Valve310
- Abnormal Discharge Pipe Temperature311
- Malfunction of Thermistor for Outdoor Air (R1T)312
- Malfunction of Discharge Pipe Thermistor (R3T)313
- Malfunction of Thermistor (R2T) for Suction Pipe314
- Malfunction of Thermistor (R4T) for Outdoor Unit Heat Exchanger315
- Malfunction of Receiver Gas Pipe Thermistor (R5T)316
- Outdoor Unit: Malfunction of High Pressure Sensor317
- Malfunction of Low Pressure Sensor318
- Malfunction of Inverter Radiating Fin Temperature Rise319
- Inverter Compressor Abnormal320
- Inverter Current Abnormal321
- Inverter Start up Error322
- Malfunction of Transmission between Inverter and Control PCB323
- Malfunction of Inverter Radiating Fin Temperature Rise Sensor325
- Faulty Combination of Inverter and Fan Driver326
- Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure327
- Power Supply Insufficient or Instantaneous Failure328
- Check Operation Not Executed330
- Malfunction in Other Indoor Unit or Other BP Unit331
- Mismatching of Indoor Unit, BP Unit and Outdoor Unit332
- Refrigerant System Not Set, Incompatible Wiring/Piping333
- Malfunction of System, Refrigerant System Address Undefined334
Check335
Thermistor Resistance / Temperature Characteristics337
Pressure Sensor339
Part 9 Removal Procedure340
Outdoor Unit341
- Removal of Outer Panels341
- Removal of PCB348
- Removal of Solenoid Valve, Four Way Valve and Motorized Valve359
- Removal of Thermistor Assembly360
- Removal of Fan Motor361
BP Unit364
- Removal of PCB364
- Removal of Solenoid Valve Coil367
Part 10 Appendix370
Piping Diagrams371
- Outdoor Units371
- BP Units372
- Indoor Units373
Wiring Diagrams378
- Outdoor Units378
- BP Units379
- Indoor Units380

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