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Daikin REYQ-TA Series Service Manual

Also see for REYQ120TATJU: Operation manual

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Contents
  1. Table Of Contents
  2. Table Of Contents
  3. Table Of Contents
  4. Table Of Contents
  5. Table Of Contents
  6. safety cautions
  7. Part 1 General Information
  8. Model Names of Indoor/Outdoor Units
  9. Air Treatment Equipment
  10. External Appearance
  11. DOAS Unit
  13. Combination of Outdoor Units
  14. Capacity Range
  15. Limitation of Capacity Index for Heat Recovery
  16. Part 2 Refrigerant Circuit
  17. Refrigerant Circuit
  18. Indoor Unit
  19. Outdoor-Air Processing Unit
  20. Branch Selector Unit
  21. Functional Parts Layout
  22. REYQ96/120TAYDU
  23. REYQ144/168TAYDU
  24. REYQ72TATJU
  25. REYQ96/120TATJU
  26. REYQ144/168TATJU
  27. Refrigerant Flow for Each Operation Mode
  28. REYQ96-168TAYDU, REYQ96-168TATJU
  29. Part 3 Remote Controller
  30. Applicable Models
  31. Names and Functions
  32. Wireless Remote Controller
  33. MAIN/SUB Setting
  35. Centralized Control Group No. Setting
  37. Group No. Setting Example
  38. Service Mode
  39. Part 4 Functions and Control
  40. Operation Flowchart (Outdoor Unit)
  41. Stop Control
  42. Standby Control
  43. Startup Control
  44. Startup Control in Heating
  45. Basic Control
  46. Compressor PI Control
  47. Compressor Step Control
  48. Electronic Expansion Valve PI Control
  49. Step Control of Outdoor Fans
  50. Heat Exchanger Control
  51. Protection Control
  52. Low Pressure Protection Control
  53. Discharge Pipe Protection Control
  54. Compressor Body Protection Control
  55. Inverter Protection Control
  56. Special Control
  57. Oil Return Operation
  58. Defrost Operation
  59. Cooling/Heating Mode Switching
  60. Other Control
  61. Outline of Control (Indoor Unit)
  62. Set Temperature and Control Temperature
  63. Remote Controller Thermistor
  64. Thermostat Control
  65. Drain Pump Control
  66. Control of Electronic Expansion Valve
  67. Freeze-up Prevention
  68. List of Swing Flap Operations
  69. Hot Start Control (In Heating Only)
  70. Louver Control for Preventing Ceiling Dirt
  71. Heater Control (Except FXTQ-TA Models)
  72. Heater Control (FXTQ-TA Models)
  73. Step Thermostat Processing (FXTQ-TA Models)
  74. Fan Control (Heater Residual) (FXTQ-TA Models)
  75. Part 5 Field Settings
  76. Field Setting from Remote Controller
  78. Simplified Remote Controller
  79. Setting Contents and Code No. for Indoor Units
  80. detailed explanation of setting modes
  81. field setting
  82. Field Setting from Outdoor Unit
  83. Operating the BS Buttons and DIP Switches on the Logic Board
  84. Connecting of the Optional PC Configurator Cable to the Outdoor Unit
  85. Monitoring Function and Field Settings
  86. Cool / Heat Mode Changeover
  87. Setting of Night-time Low Noise Operation and Demand Operation
  88. Test Operation
  89. Part 6 Service Diagnosis
  90. Symptom-based Troubleshooting
  91. With Optional Infrared Presence/Floor Sensor
  92. Service Check Function
  94. Error Codes and Descriptions
  95. Error Codes - Sub Codes
  96. Troubleshooting by Error Code
  97. Indoor Unit PCB Abnormality
  98. Drain Level Control System Abnormality
  99. Fan Motor Lock, Overload
  100. Indoor Fan Motor Abnormality
  101. Overload/Overcurrent/Lock of Indoor Fan Motor
  102. Blower Motor Not Running
  103. Indoor Fan Motor Status Abnormality
  104. Low Indoor Airflow
  105. Swing Flap Motor Abnormality
  106. Power Supply Voltage Abnormality
  107. Blower Motor Stops for Over/Under Voltage
  108. Electronic Expansion Valve Coil Abnormality, Dust Clogging
  109. Drain Level above Limit
  110. Capacity Determination Device Abnormality
  111. Transmission Abnormality between Indoor Unit PCB and Fan PCB
  112. Blower Motor Communication Error
  113. Thermistor Abnormality
  114. Combination Error between Indoor Unit PCB and Fan PCB
  115. Blower Motor HP Mismatch
  116. Indoor Blower Does Not Have Required Parameters to Function
  117. Remote Sensor Abnormality
  118. Humidity Sensor System Abnormality
  119. Infrared Presence/Floor Sensor Error
  120. Remote Controller Thermistor Abnormality
  121. Outdoor Unit Main PCB Abnormality
  122. Actuation of High Pressure Switch
  123. Actuation of Low Pressure Sensor
  124. Inverter Compressor Motor Lock
  125. Compressor Damage Alarm
  126. Outdoor Fan Motor Abnormality
  127. Electronic Expansion Valve Coil Abnormality
  128. Discharge Pipe Temperature Abnormality
  129. Wet Alarm
  130. Refrigerant Overcharged
  131. Harness Abnormality (between Outdoor Unit Main PCB and Inverter PCB)
  132. Outdoor Fan Motor Signal Abnormality
  134. High Pressure Sensor Abnormality
  135. Low Pressure Sensor Abnormality
  136. Inverter PCB Abnormality
  137. Reactor Temperature Rise Abnormality
  138. Inverter Radiation Fin Temperature Rise Abnormality
  139. Inverter Compressor Instantaneous Overcurrent
  140. Inverter Compressor Overcurrent
  141. Inverter Compressor Startup Abnormality
  142. Transmission Error between Inverter PCB and Outdoor Unit Main PCB
  143. Power Supply Voltage Imbalance
  144. Reactor Temperature Abnormality
  145. Inverter Radiation Fin Temperature Abnormality
  146. Field Setting after Replacing Outdoor Unit Main PCB Abnormality or Combination of PCB Abnormality
  147. Refrigerant Shortage
  148. Reverse Phase, Open Phase
  149. Power Supply Insufficient or Instantaneous Abnormality
  150. Check Operation not Executed
  151. Transmission Error between Indoor Units and Outdoor Units
  152. Transmission Error between Remote Controller and Indoor Unit
  153. Transmission Error between Outdoor Units
  154. Transmission Error between Main and Sub Remote Controllers
  155. Transmission Error between Indoor Unit and Outdoor Unit in the Same System
  156. Improper Combination of Indoor Unit and Outdoor Unit Indoor Unit and Remote Controller
  157. Incorrect Electric Heater Capacity Setting
  158. Address Duplication of Centralized Controller
  159. Transmission Error between Centralized Controller and Indoor Unit
  160. System not Set yet
  161. System Abnormality, Refrigerant System Address Undefined
  162. Check
  163. Low Pressure Check
  164. Superheat Operation Check
  165. Power Transistor Check
  166. Refrigerant Overcharge Check
  167. Refrigerant Shortage Check
  168. Vacuuming and Dehydration Procedure
  169. Thermistor Check
  170. Pressure Sensor Check
  171. Broken Wire Check of the Relay Wires
  172. Fan Motor Connector Check (Power Supply Cable)
  173. Electronic Expansion Valve Coil Check
  174. Part 7 Appendix
  175. Wiring Diagrams
  179. revision history
Daikin REYQ-TA Series Service Manual Manual pdf 265 page image
SiUS371614E Troubleshooting by Error CodeService Diagnosis 2523.56 Transmission Error between Indoor Units and OutdoorUnitsError Code U4ApplicableModelsAll indoor unit modelsAll outdoor unit modelsMethod of ErrorDetectionMicrocomputer checks if transmission between indoor and outdoor units is normal.Error DecisionConditionsWhen transmission is not carried out normally for a certain amount of timeSupposedCauses„ Short circuit in indoor-outdoor or outdoor-outdoor transmission wiring (F1 / F2), or wrong wiring„ Outdoor unit power supply is OFF„ System address does not match„ Defective indoor unit PCB„ Defective outdoor unit PCB
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This manual is suitable for:
REYQ120TATJUREYQ120TAYDUREYQ144TATJUREYQ144TAYDUREYQ168TATJUREYQ168TAYDUREYQ192TATJUREYQ192TAYDUREYQ216TATJUREYQ216TAYDUREYQ240TATJUREYQ240TAYDUREYQ264TATJUREYQ264TAYDUREYQ288TATJUREYQ288TAYDUREYQ312TATJUREYQ312TAYDUREYQ336TATJUREYQ336TAYDUREYQ360TATJUREYQ360TAYDUREYQ384TATJUREYQ384TAYDUREYQ408TATJUREYQ408TAYDUREYQ432TATJUREYQ432TAYDUREYQ456TATJUREYQ456TAYDUREYQ72TATJUREYQ72TAYDUREYQ96TATJUREYQ96TAYDUREYQ-TA SeriesREYQ72-456TATJUREYQ72-456TAYDU
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