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Daikin FVXG25K2V1B Service Manual

Also see for FVXG25K2V1B: Service manualService manualService manualOperation manualTechnical data

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Contents
  1. Table Of Contents
  2. Table Of Contents
  3. Table Of Contents
  4. safety cautions
  5. part 1 list of functions
  6. Functions
  7. part 2 specifications
  8. Specifications
  9. Part 3 Printed Circuit Board Connector Wiring Diagram
  10. Indoor Unit
  11. Outdoor Unit
  12. RXG50K2V1B
  13. RXG50K3V1B
  14. Part 4 Function and Control
  15. main functions
  16. airflow direction control
  17. fan speed control for indoor unit
  18. RADIANT Operation
  19. program dry operation
  20. automatic operation
  21. thermostat control
  22. night set mode
  23. econo operation
  24. inverter powerful operation
  25. clock setting
  26. weekly timer operation
  27. other functions
  28. function of thermistor
  29. control specification
  30. frequency control
  31. Controls at Mode Changing / Start-up
  32. Discharge Pipe Temperature Control
  33. input current control
  34. Freeze-up Protection Control
  35. outdoor fan control
  36. defrost control
  37. outdoor electronic expansion valve control
  38. pressure equalizing control
  39. Malfunctions
  40. part 5 remote controller
  41. FVXG25/35/50K2V1B
  42. mode button
  43. Part 6 Service Diagnosis
  44. troubleshooting with led
  45. problem symptoms and measures
  46. service check function
  47. troubleshooting
  48. indoor unit pcb abnormality
  49. Freeze-up Protection Control or Heating Peak-cut Control
  50. Fan Motor (DC Motor) or Related Abnormality
  51. Motor Operated Valve) Abnormality Freeze-up Protection Control
  52. Thermistor or Related Abnormality (Indoor Unit)
  53. refrigerant shortage
  54. Low-voltage Detection or Over-voltage Detection
  55. Signal Transmission Error (between Indoor Unit and Outdoor Unit)
  56. Unspecified Voltage (between Indoor Unit and Outdoor Unit)
  57. outdoor unit pcb abnormality
  58. OL Activation (Compressor Overload)
  59. compressor lock
  60. dc fan lock
  61. input overcurrent detection
  62. four way valve abnormality
  64. high pressure control in cooling
  65. compressor system sensor abnormality
  66. position sensor abnormality
  67. DC Voltage / Current Sensor Abnormality (25/35 Class Only)
  68. CT or Related Abnormality (RXG50K2V1B Only)
  69. Thermistor or Related Abnormality (Outdoor Unit)
  70. electrical box temperature rise
  71. radiation fin temperature rise
  72. output overcurrent detection
  73. thermistor resistance check
  74. fan motor connector output check
  75. Electronic Expansion Valve Check
  76. four way valve performance check
  77. inverter analyzer check
  78. rotation pulse check on the outdoor unit pcb
  79. installation condition check
  80. outdoor fan system check
  81. capacitor voltage check
  82. power module check
  83. Part 7 Trial Operation and Field Settings
  84. pump down operation
  85. Forced Cooling Operation
  86. trial operation
  87. field settings
  88. Standby Electricity Saving
  89. Facility Setting Jumper (cooling at low outdoor temperature)
  90. Jumper and Switch Settings
  91. Silicon Grease on Power Transistor / Diode Bridge
  92. Part 8 Appendix
  93. Piping Diagrams
  95. Wiring Diagrams
  97. Removal Procedure (Booklet No.)
  98. revision history
Daikin FVXG25K2V1B Service Manual Manual pdf 20 page image
Indoor Unit SiBE061121_A10 Printed Circuit Board Connector Wiring Diagram1. Indoor UnitMain PCBCaution Replace the PCB if you accidentally cut the jumpers other than JB and JC.Jumpers are necessary for electronic circuit. Improper operation may occur if you cut any ofthem.1) S1 Connector for fan motor2) S2 Connector for terminal board3) S6 Connector for swing motor4) S21 Connector for centralized control (HA)5) S26 Connector for service PCB6) S30 Connector for indoor electronic expansion valve coil (motor operatedvalve coil)7) S32 Connector for indoor heat exchanger thermistor8) S33 Connector for room temperature thermistor9) S34 Connector for radiant panel thermistors10) S46 Connector for display PCB11) FG Connector for earth wire12) V1 Varistor13) JB Fan speed setting when compressor stops for thermostat OFFJC Power failure recovery function∗ Refer to page 126 for detail.14) F1U Fuse (3.15 A, 250 V)15) LED A LED for service monitor (green)S6S30S21S32S33S34 S26 S46 FGLED A S1 V1 F1U S2JBJC2P273247-1
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This manual is suitable for:
FVXG25K2V1BFVXG35K2V1BFVXG50K2V1BRXG25K2V1BRXG35K2V1BRXG50K2V1BRXG50K3V1BRXG25K3V1BRXG35K3V1B
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