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SiEBE18-526 Refrigerant Circuit

Refrigerant Circuit 45

Refrigerant Circuit Diagram

Filter

Stop valve (With service port on field piping side

6.4mm flare connection)

Filter

Compressor

Filter

HPS

Receiver

Filter

Heat exchanger

Service port



























(Q0371)

High pressure

sensor

Four way

valve

Pressure

regulating valve

Oil

separator

Solenoid

valve

Capillary

tube

Low pressure

sensor

Solenoid

valve

Check

valve

Check

valve

Heat

exchanger

pipe

Check

valve

Check

valve

Electronic

expansion valve

Electronic

expansion valve

Double pipe

heat exchanger

High pressure

switch

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

Brand	Daikin
Model	Super Multi Plus D-Series
Category	Heat Pump
Language	English

Daikin Super Multi Plus D-Series User Manual

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