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Daikin FCQ18PVJU Service Manual

Also see for SkyAir FAQ18PVJU: Service manualEngineering dataEngineeiring dataService manualOperation manual

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Contents
  1. Table Of Contents
  2. Table Of Contents
  3. Table Of Contents
  4. safety considerations
  5. Part 1 General Information
  6. Model Names and Power Supply
  7. External Appearance
  8. Part 2 Specifications
  9. Specifications
  10. ceiling suspended type
  11. wall mounted type
  12. Part 3 List of Electrical and Functional Parts
  13. List of Electrical and Functional Parts
  14. Indoor Units
  15. Part 4 Refrigerant Circuit
  16. Refrigerant Circuit
  17. Functional Parts Layout
  18. Part 5 Function
  19. Operation Mode
  20. Basic Control
  21. Compressor PI Control
  22. Electronic Expansion Valve PI Control
  23. Cooling Operation Fan Control
  24. Special Control
  25. Oil Return Operation
  26. Defrosting Operation
  27. Pump-down Residual Operation
  28. Restart Standby
  29. Stopping Operation
  30. Pressure Equalization Prior to Startup
  31. Protection Control
  32. Low Pressure Protection Control
  33. Discharge Pipe Protection Control
  34. Inverter Protection Control
  35. Other Control
  36. remote controller
  37. Louver Control for Preventing Ceiling Dirt
  38. Operation Range of Remote Controller Temperature Sensor
  39. Freeze Prevention
  40. View of Operations of Swing Flaps
  41. Part 6 Test Operation
  42. Test Operation
  43. check operation
  44. Operation when Power is Turned On
  45. Outdoor Unit P.C.B. Layout
  46. Field Setting
  47. simplified remote controller
  48. detailed explanation of setting modes
  49. Field Setting from Outdoor Unit
  50. Detail of Setting Mode
  51. Part 7 Troubleshooting
  52. Symptom-based Troubleshooting
  53. Troubleshooting by Remote Controller
  54. Self-diagnosis by Wired Remote Controller
  55. Self-diagnosis by Wireless Remote Controller
  56. Operation of the Remote Controller's Inspection Test Operation Button
  57. Remote Controller Service Mode
  58. Remote Controller Self-Diagnosis Function
  59. Troubleshooting by Indication on the Remote Controller
  60. troubleshooting
  61. Heat Exchanger
  62. outdoor unit heat exchanger
  63. temperature rise
  64. temperature rise sensor
  65. and outdoor units
  66. sub remote controllers
  67. the Centralized Remote Controller
  68. controllers for centralized control
  69. centralized control
  70. Troubleshooting by Indication on the Unified ON/OFF Controller
  71. repeats double blink
  72. Part 8 Appendix
  73. Piping Diagrams
  74. Indoor Unit
  75. Wiring Diagrams for Reference
  77. Thermistor Resistance / Temperature Characteristics
  78. Pressure Sensor
  79. Part 9 Precautions for New Refrigerant (R-410A)
  80. Precautions for New Refrigerant (R-410A)
  81. Service Tools
Daikin FCQ18PVJU Service Manual Manual pdf 35 page image
SiUS28-902_a Special ControlFunction 283.7 Pressure Equalization Prior to StartupBefore activating the compressor, the activation load is lightened by equalization across thecompressor. In addition, inverters turn on electricity and capacitors are charged.Actuator Operation RemarksCompressor OFF ⎯Outdoor unit fanCooling:OFFHeating:Ta>78.8°F; STEP 8,Ta≤78.8°F; OFF⎯Four-way valve Keep former condition. ⎯Main electronic expansion valve (EV1) 0 pls ⎯Subcooling electronic expansion valve (EV2) 0 pls ⎯Hot gas bypass valve (SVP) ON ⎯Receiver gas discharging valve (SVG) OFF ⎯Ending conditions • • 3 min.• • Pc-Pe<29 psi ⎯or
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This manual is suitable for:
SkyAir FAQ18PVJUSkyAir FAQ24PVJUSkyAir FCQ18PVJUSkyAir FCQ24PVJUSkyAir FCQ30PVJUSkyAir FHQ18PVJUSkyAir FHQ24PVJUSkyAir FHQ30PVJUSkyAir RZQ18PVJUSkyAir RZQ24PVJUSkyAir RZQ30PVJU
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