Daikin VRV RXYQ72-384XAYCA Service Manual page 6

4. Check ......................................................................................................357
v
3.42 Refrigerant Overcharged.......................................................................... 299
3.43 Harness Abnormality (between Outdoor Unit Main PCB and Inverter
PCB)......................................................................................................... 300
3.44 Outdoor Fan PCB Abnormality................................................................. 301
3.45 Thermistor Abnormality ............................................................................ 302
3.46 High Pressure Sensor Abnormality .......................................................... 304
3.47 Low Pressure Sensor Abnormality ........................................................... 305
3.48 Inverter PCB Abnormality......................................................................... 306
3.49 Momentary Power Failure during Test Operation .................................... 308
3.50 Inverter Radiation Fin Temperature Rise Abnormality ............................. 309
3.51 Compressor Instantaneous Overcurrent .................................................. 311
3.52 Compressor Overcurrent.......................................................................... 313
3.53 Compressor Startup Abnormality ............................................................. 315
3.54 Transmission Error between Inverter PCB and Outdoor Unit Main PCB... 317
3.55 Power Supply Voltage Imbalance ............................................................ 319
3.56 Inverter Radiation Fin Temperature Abnormality ..................................... 321
3.57 Field Setting Abnormality after Replacing Outdoor Unit Main PCB or
Combination of PCB Abnormality............................................................. 323
3.58 Refrigerant Shortage ................................................................................ 324
3.59 Reverse Phase, Open Phase................................................................... 325
3.60 Power Supply Insufficient or Instantaneous Abnormality ......................... 326
3.61 Check Operation Not Executed................................................................ 328
3.62 Transmission Error between Indoor Units and Outdoor Units, Open
Phase in Power Supply Wiring ................................................................. 329
3.63 Transmission Error between Remote Controller and Indoor Unit............. 332
3.64 Transmission Error between Outdoor Units ............................................. 333
3.65 Transmission Error between Main and Sub Remote Controllers ............. 339
3.66 Transmission Error between Indoor Units and Outdoor Units in the
Same System ........................................................................................... 340
3.67 Improper Combination of Indoor Unit and Outdoor Unit, Indoor Unit and
Remote Controller .................................................................................... 341
3.68 Incorrect Gas Furnace Connecting Number............................................. 346
3.69 Incorrect Electric Heater Capacity Setting................................................ 347
3.70 Address Duplication of Centralized Controller.......................................... 348
3.71 Transmission Error between Centralized Controller and Indoor Unit ....... 349
3.72 System Not Set Yet .................................................................................. 352
3.73 System Abnormality, Refrigerant System Address Undefined ................. 353
3.74 Climate Talk Communication System Combination Error (Before Initial
Setting for Communication Completes).................................................... 355
3.75 Climate Talk Communication System Combination Error (After Initial
Setting for Communication Completes).................................................... 356
4.1 High Pressure Check ............................................................................... 357
4.2 Low Pressure Check ................................................................................ 358
4.3 Superheat Operation Check..................................................................... 360
4.4 Power Transistor Check ........................................................................... 362
4.5 Refrigerant Overcharge Check................................................................. 363
4.6 Refrigerant Shortage Check..................................................................... 364
4.7 Vacuuming and Dehydration Procedure .................................................. 365
SiUS342004EB
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