Name: Daikin RXYQ72
Brand: Daikin
Rating: 5 (1 reviews)

Default Chapter2

Part 1 General Information12

Part 2 Specifications16

Specifications17
- Outdoor Units17
- Indoor Units22

Part 3 Refrigerant Circuit34

Part 4 Function42

Part 5 Test Operation74

Part 6 Troubleshooting116

CJ" Indoor Unit: Malfunction of Thermostat Sensor in Remote Controller116
Troubleshooting by Remote Controller119
- The INSPECTION / TEST Button119
- Self-Diagnosis by Wired Remote Controller120
- Self-Diagnosis by Wireless Remote Controller121
- Operation of the Remote Controller's Inspection / Test Operation Button123
- Remote Controller Service Mode124
- Remote Controller Self-Diagnosis Function126
- Malfunction Code Indication by Outdoor Unit Pcb129
Troubleshooting by Indication on the Remote Controller131
- A0" Indoor Unit: Error of External Protection Device131
- A1" Indoor Unit: PC Board Defect132
- PC Board Defect132
- A3" Indoor Unit: Malfunction of Drain Level Control System (S1L)133
- Troubleshooting134
- A6" Indoor Unit: Fan Motor (M1F) Lock, Overload135
- Malfunction of Swing Flap Motor (MA)136
- A7" Indoor Unit: Malfunction of Swing Flap Motor (MA)136
- A9" Indoor Unit: Malfunction of Moving Part of138
- Electronic Expansion Valve (20E)138
- In Remote Controller145
Compressor Motor Lock150
E5" Compressor Motor Lock150
Compressor Motor Overcurrent/Lock152
E6" Compressor Motor Overcurrent/Lock152
Malfunction of Outdoor Unit Fan Motor153
E7" Malfunction of Outdoor Unit Fan Motor153
E9" Outdoor Unit: Malfunction of Moving Part of155
- Of Electronic Expansion Valve (Y1E, Y2E)155
- Electronic Expansion Valve (Y1E, Y2E)155
- F3" Outdoor Unit: Abnormal Discharge Pipe Temperature157
  - Abnormal Discharge Pipe Temperature157
Refrigerant Overcharged158
F6" Refrigerant Overcharged158
H7" Abnormal Outdoor Fan Motor Signal159
2.23 "H9" Outdoor Unit161
H9" Outdoor Unit: Malfunction of Thermistor (R1T) for Outdoor Air161
J2" Current Sensor Malfunction162
2.25 "J3" Outdoor Unit163
- J3" Outdoor Unit: Malfunction of Discharge Pipe Thermistor (R31~33T)163
2.26 "J5" Outdoor Unit164
J5" Outdoor Unit: Malfunction of Thermistor (R2T) for Suction Pipe164
- Malfunction of Thermistor (R2T) for164
- J6" Outdoor Unit: Malfunction of Thermistor (R4T) for165
J7" Malfunction of Receiver Outlet Liquid Pipe166
- Thermistor (R6T)166
J8"Malfunction of Oil Equalizing Pipe Thermistor (R7T)167
Malfunction of Sub-Cooling Gas Pipe Thermistor (R5T)168
J9" Malfunction of Sub-Cooling Gas Pipe Thermistor (R5T)168
2.31 "JA" Outdoor Unit169
- Malfunction of Discharge Pipe Pressure Sensor169
- JA" Outdoor Unit: Malfunction of Discharge Pipe Pressure Sensor169
- JC" Outdoor Unit: Malfunction of Suction Pipe Pressure Sensor171
- Malfunction of Suction Pipe Pressure Sensor171
- 2.33 "L4" Outdoor Unit172
- L4" Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise172
- L5" Outdoor Unit: Inverter Compressor Abnormal173
- Inverter Compressor Abnormal173
- L8" Outdoor Unit: Inverter Current Abnormal174
- L9" Outdoor Unit: Inverter Start up Error176
- Inverter Start up Error176
- 2.37 "LC" Outdoor Unit177
- LC" Outdoor Unit: Malfunction of Transmission between Inverter and Control PC Board177
- P1" Outdoor Unit: Inverter Over-Ripple Protection179
- Inverter Over-Ripple Protection179
- 2.39 "P4" Outdoor Unit181
- P4" Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise Sensor181
- PC Board or Faulty Combination of PC Board182
- PJ" Outdoor Unit: Faulty Field Setting after Replacing Main PC Board or Faulty Combination of PC Board182
- 2.41 "UO" Outdoor Unit183
- UO" Outdoor Unit: Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure183
- U1" Outdoor Unit: Reverse Phase, Open Phase185
  - Reverse Phase, Open Phase185
  - 2.43 "U2" Outdoor Unit186
- Or Instantaneous Failure186
- U2" Outdoor Unit: Power Supply Insufficient or Instantaneous Failure186
- U3" Outdoor Unit: Check Operation Not Executed188
  - Check Operation Not Executed188
U4" Malfunction of Transmission between Indoor Units189
- And Outdoor Units189
- U5" Indoor Unit: Malfunction of Transmission between191
- UA" Improper Combination of Indoor Units197
- UA" Improper Combination of Indoor Units and197
  - And Outdoor Units/Indoor Units and Remote Controller197
  - Outdoor Units/Indoor Units and Remote Controller197
- UC" Address Duplication of Central Remote Controller199
- UE" Malfunction of Transmission between Centralized Controller and Indoor Unit200
- UF" System Is Not Set yet202
- UH" Malfunction of System, Refrigerant System Address Undefined203
Troubleshooting (OP: Central Remote Controller)205
- PC Board Defect205
- M1" PC Board Defect205
- M8" Malfunction of Transmission between Optional Controllers for Centralized Control206
- Improper Combination of Optional Controllerslers for Centralized Controllers208
- MA" Improper Combination of Optional Controllers for Centralized Control208
- MC" Address Duplication, Improper Setting210
Troubleshooting (OP: Schedule Timer)211
- UE" Malfunction of Transmission between Central Remote Controller211
- UE" Malfunction of Transmission between Central Remote Controller and Indoor Unit211
- PC Board Defect213
- M1" PC Board Defect213
- M8" Malfunction of Transmission between Optional Controllers for Centralized Control214
- Improper Combination of Optional Controllerslers for Centralized Controllers216
- MA" Improper Combination of Optional Controllers for Centralized Control216
- MC" Address Duplication, Improper Setting218
Troubleshooting (OP: Unified ON/OFF Controller)219
- Operation Lamp Blinks219
- Display "Under Centralized Control" Blinks (Repeats Single Blink)221
- Display "Under Centralized Control" Blinks (Repeats Double Blink)224

Part 7 Replacement Procedure for INV Compressor, VRV228

Replacement Procedure for INV Compressor, VRV (RXYQ72M, 96M)229
- Replacement Procedure229

Part 8 Appendix230

Part 9 Precautions for New Refrigerant (R-410A)256

Precautions for New Refrigerant (R-410A)257
- Outline257
- Service Tools259

Index266

Drawings & Flow Charts270

Brand	Daikin
Model	RXYQ72
Category	Air Conditioner
Language	English

Daikin RXYQ72 User Manual

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Daikin RXYQ72 Specifications

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