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Daikin Manuals
Inverter
FTX25JV1NB
Manual
Daikin FTX25JV1NB Manual
Inverter pair
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Introduction
Safety Cautions
List of Function
Part 1 List of Function
Functions
Indoor Unit and Outdoor Unit
Part 2 Printed Circuit Board Connector Wiring Diagram
Printed Circuit Board Connector Wiring Diagram and Name
FTK25/35J Series, FTX25/35J Series
RK25/35J Series, RX25/35J Series
Part 3 Main Function
General Functionality
Functions of Thermistors
Operating Modes
Frequency Principle
Defrost Control
Forced Operation Mode
Wide-Angle Flaps, Diffuser, Louvres and Autoswing
Fan Speed Control for Indoor Units
Fan Speed Control for Outdoor Units
General Functions
Intelligent Eye (J Type)
Good Sleep Cooling Control (J Type)
Automatic Operation
Input Current Control (H / J Type)
Freeze Protection Function in Cooling. (H / J Type)
Peak-Cut Control Function (H / J Type)
Four-Way Valve Function Compensation (H / J Type)
Compressor Protection Function (H / J Type)
Wet Operation Protection (H / J Type)
Dew Condensation Sweating Prevention Function (H / J Type)
Part 4 System Configuration
Instruction
Ftk25 / 35J, Ftx25 / 35J
Names of Parts
Outdoor Unit
Timer Operation
Part 5 Service Diagnosis
Caution for Diagnosis
Troubleshooting with the Operation Lamp
Problem Symptoms and Measures
Service Check Function
ARC423 Series
Code Indication on the Remote Controller
Error Codes and Description of Fault
Troubleshooting
Indoor Units
Outdoor Units
Faulty PCB
Operation Shutdown Due to High-Pressure Control or Freeze-Up Protection (Thermistor Activation)
Operation Halt Due to Fan Motor (AC Motor) or Related Abnormality
Operation Halt Due to Detection of Thermistor or Related Abnormality
Faulty Indoor Unit PCB
Faulty Indoor Unit PCB
Power Supply Abnormalities or Faulty Indoor Printed Circuit Boards
Signal Transmission Error (between Indoor and Outdoor Units)
Operation Halt Due to Detection of CT Error
Operation Halt Due to Thermistor Error or Disconnection Detection
Operation Halt Due to Compressor Startup Error
Output Overcurrent
Faulty Outdoor Unit PCB
Faulty Outdoor Unit PCB and Transmitting/Receiving Circuit
Operation Halt Due to Detection of Input over Current
Check
How to Check
Part 6 Removal Procedure
For FTK25J, FTK35J, FTX25J, FTX35J
Removal of Air Filter
Removal of Front Grille
Removal of Horizontal Blade and Vertical Blade
Removal of Switch Box, PC Board and Swing Motor
Removal of Heat Exchanger
Install of Drain Plug
Removal of Fan Rotor and Motor
For RK25J, RK35J, RX25J, RX35J
Removal of External Casing
Removal of Bellmouth and Left Side Plate
Removal of PC Board and Switch Box
Removal of Propeller Fan and Fan Motor
Removal of Compressor Noise Absorption Pad
Removal of Partition Plate and Reactor
Removal of Four-Way Valve
Removal of Compressor
Part 7 Others
Others
Explanation
Part 8 Appendix
Piping Diagram
Indoor Unit
Outdoor Unit
Wiring Diagram
Indoor Unit
Outdoor Unit
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1
Table of Contents
2
Introduction
3
Indoor Unit and Outdoor Unit
4
Ftk25/35J Series, Ftx25/35J Series
5
Rk25/35J Series, Rx25/35J Series
Download this manual
Si-86.book Page i Friday, June 23, 2000 10:26 AM
SIE-86
FTK(X)-J / RK(X)-J Series
Cooling Only
Indoor Unit
FTK25JV1NB
FTK35JV1NB
Outdoor Unit
RK25JV1NB
RK35JV1NB
Heat Pump
Indoor Unit
FTX25JV1NB
FTX35JV1NB
Outdoor Unit
RX25JV1NB
RX35JV1NB
Table of Contents
Inverter Pair
i
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Table of Contents
Troubleshooting
Caution for Diagnosis
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Troubleshooting
65
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