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RX25JV1NB
Daikin RX25JV1NB User Manual
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SIE-86
Table of Contents
i
Inverter Pair
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
Si-86.book Page i Friday, June 23, 2000 10:26 AM
2
Table of Contents
Default Chapter
2
Table of Contents
2
Introduction
5
Safety Cautions
5
List of Function
9
Part 1 List of Function
9
Functions
10
Indoor Unit and Outdoor Unit
10
Part 2 Printed Circuit Board Connector Wiring Diagram
11
Printed Circuit Board Connector Wiring Diagram and Name
12
FTK25/35J Series, FTX25/35J Series
12
RK25/35J Series, RX25/35J Series
14
Part 3 Main Function
17
General Functionality
18
Functions of Thermistors
18
Operating Modes
20
Frequency Principle
21
Defrost Control
23
Forced Operation Mode
24
Wide-Angle Flaps, Diffuser, Louvres and Autoswing
25
Fan Speed Control for Indoor Units
27
Fan Speed Control for Outdoor Units
28
General Functions
29
Intelligent Eye (J Type)
31
Good Sleep Cooling Control (J Type)
33
Automatic Operation
34
Input Current Control (H / J Type)
35
Freeze Protection Function in Cooling. (H / J Type)
36
Peak-Cut Control Function (H / J Type)
37
Four-Way Valve Function Compensation (H / J Type)
38
Compressor Protection Function (H / J Type)
39
Wet Operation Protection (H / J Type)
40
Dew Condensation Sweating Prevention Function (H / J Type)
41
Part 4 System Configuration
43
Instruction
44
Ftk25 / 35J, Ftx25 / 35J
44
Names of Parts
45
Outdoor Unit
46
Timer Operation
52
Part 5 Service Diagnosis
59
Caution for Diagnosis
60
Troubleshooting with the Operation Lamp
60
Problem Symptoms and Measures
62
Service Check Function
63
ARC423 Series
63
Code Indication on the Remote Controller
64
Error Codes and Description of Fault
64
Troubleshooting
65
Indoor Units
65
Outdoor Units
66
Faulty PCB
67
Operation Shutdown Due to High-Pressure Control or Freeze-Up Protection (Thermistor Activation)
68
Operation Halt Due to Fan Motor (AC Motor) or Related Abnormality
69
Operation Halt Due to Detection of Thermistor or Related Abnormality
70
Faulty Indoor Unit PCB
71
Faulty Indoor Unit PCB
72
Power Supply Abnormalities or Faulty Indoor Printed Circuit Boards
73
Signal Transmission Error (between Indoor and Outdoor Units)
74
Operation Halt Due to Detection of CT Error
75
Operation Halt Due to Thermistor Error or Disconnection Detection
76
Operation Halt Due to Compressor Startup Error
77
Output Overcurrent
78
Faulty Outdoor Unit PCB
80
Faulty Outdoor Unit PCB and Transmitting/Receiving Circuit
81
Operation Halt Due to Detection of Input over Current
82
Check
84
How to Check
84
Part 6 Removal Procedure
93
For FTK25J, FTK35J, FTX25J, FTX35J
94
Removal of Air Filter
94
Removal of Front Grille
96
Removal of Horizontal Blade and Vertical Blade
98
Removal of Switch Box, PC Board and Swing Motor
100
Removal of Heat Exchanger
105
Install of Drain Plug
107
Removal of Fan Rotor and Motor
108
For RK25J, RK35J, RX25J, RX35J
111
Removal of External Casing
111
Removal of Bellmouth and Left Side Plate
113
Removal of PC Board and Switch Box
114
Removal of Propeller Fan and Fan Motor
119
Removal of Compressor Noise Absorption Pad
120
Removal of Partition Plate and Reactor
122
Removal of Four-Way Valve
124
Removal of Compressor
126
Part 7 Others
127
Others
128
Explanation
128
Part 8 Appendix
131
Piping Diagram
132
Indoor Unit
132
Outdoor Unit
133
Wiring Diagram
135
Indoor Unit
135
Outdoor Unit
137
4
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Daikin RX25JV1NB Specifications
General
Type
Inverter
Cooling Capacity
2.5 kW
Heating Capacity
3.2 kW
Indoor Unit Noise Level
19 dB(A)
Refrigerant
R32
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