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Daikin
Air Conditioner
RKS30LVJU
Daikin RKS30LVJU User Manual
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Service
Manual
Inverter Pair
FTXS-L Series
FDXS-L Series
SiUS091133
[Applied Models]
Inverter Pair : Cooling Only
Inverter Pair : Heat Pump
2
Table of Contents
Default Chapter
3
Table of Contents
3
Safety Considerations
9
Safety Considerations for Repair
9
Safety Considerations for Users
10
List of Functions
11
Functions
12
FTXS Series
12
FDXS Series
14
Specifications
15
Specifications
16
FTXS Series
16
FDXS Series
21
Printed Circuit Board Connector Wiring Diagram
22
Indoor Unit
23
Ftxs09/12Lvju
23
Ftxs15/18/24/30/36Lvju
26
Fdxs09/12Lvju
29
Outdoor Unit
31
Rxs09/12Lvju
31
Rxs15/18Lvju
33
Rxs24Lvju, Rk(X)S30/36Lvju
35
Function and Control
37
Main Functions
38
Temperature Control
38
Frequency Principle
38
Airflow Direction Control (FTXS Series)
40
Fan Speed Control for Indoor Unit
42
Program Dry Operation
43
Automatic Operation
44
Thermostat Control
45
NIGHT SET Mode
46
ECONO Operation
47
INTELLIGENT EYE Operation (FTXS Series)
48
Inverter POWERFUL Operation
49
Other Functions
50
Function of Thermistor
51
Control Specification
52
Mode Hierarchy
52
Frequency Control
53
Controls at Mode Changing / Start-Up
55
Discharge Pipe Temperature Control
56
Input Current Control
57
Freeze-Up Protection Control
58
Heating Peak-Cut Control
58
Outdoor Fan Control
59
Liquid Compression Protection Function
59
Defrost Control
60
Electronic Expansion Valve Control
61
Pressure Equalizing Control
62
Malfunctions
64
Operation Manual
65
System Configuration
66
FTXS Series
67
Remote Controller
67
AUTO · DRY · COOL · HEAT · FAN Operation
69
Adjusting the Airflow Direction and Rate
71
COMFORT AIRFLOW / INTELLIGENT EYE Operation
74
POWERFUL Operation
76
OUTDOOR UNIT QUIET Operation
77
ECONO Operation
78
OFF TIMER Operation
79
ON TIMER Operation
80
WEEKLY TIMER Operation
81
FDXS Series
87
Remote Controller
87
AUTO · DRY · COOL · HEAT · FAN Operation
89
Adjusting the Airflow Rate
91
POWERFUL Operation
92
OUTDOOR UNIT QUIET Operation
93
ECONO Operation
94
OFF TIMER Operation
95
ON TIMER Operation
96
Service Diagnosis
97
Troubleshooting with LED
99
Indoor Unit
99
Outdoor Unit
99
Problem Symptoms and Measures
100
Service Check Function
101
Troubleshooting
104
Error Codes and Description
104
Indoor Unit PCB Abnormality
105
Freeze-Up Protection Control or Heating Peak-Cut Control
107
Fan Motor or Related Abnormality
109
Thermistor or Related Abnormality (Indoor Unit)
113
Refrigerant Shortage
114
Low-Voltage Detection or Over-Voltage Detection
117
Signal Transmission Error (between Indoor Unit and Outdoor Unit)
119
Signal Transmission Error on Outdoor Unit PCB
121
(24/30/36 Class Only)111
121
Signal Transmission Error on Outdoor Unit PCB (24/30/36 Class Only)
121
Unspecified Voltage (between Indoor Unit and Outdoor Unit)
122
Outdoor Unit PCB Abnormality
123
OL Activation (Compressor Overload)
125
Compressor Lock
126
DC Fan Lock
127
Input Overcurrent Detection
128
Fourway Valve Abnormality
129
Discharge Pipe Temperature Control
131
High Pressure Control in Cooling
133
Compressor System Sensor Abnormality
135
Position Sensor Abnormality
138
DC Voltage / Current Sensor Abnormality (09/12 Class Only)
141
CT or Related Abnormality (24/30/36 Class Only)
142
Thermistor or Related Abnormality (Outdoor Unit)
144
Electrical Box Temperature Rise
146
Radiation Fin Temperature Rise
148
Output Overcurrent Detection
150
Check
152
Thermistor Resistance Check
152
Fan Motor Connector Output Check
153
Hall IC Check
153
Power Supply Waveforms Check
154
Electronic Expansion Valve Check
154
Fourway Valve Performance Check
155
Inverter Units Refrigerant System Check
155
Inverter Checker" Check
156
Rotation Pulse Check on the Outdoor Unit PCB
158
Installation Condition Check
159
Discharge Pressure Check
160
Outdoor Fan System Check
160
Main Circuit Short Check
161
Capacitor Voltage Check
162
Power Module Check
163
Removal Procedure
165
Indoor Unit: FTXS09/12LVJU
167
Removal of Air Filters
167
Removal of Front Panel
169
Removal of Front Grille
170
Removal of Horizontal Blades / Vertical Blades
172
Removal of Electrical Box
176
Removal of Pcbs
180
Removal of Swing Motors
186
Removal of Indoor Heat Exchanger
190
Removal of Fan Motor
193
Indoor Unit: FTXS15/18/24LVJU
196
Removal of Air Filters / Front Panel
196
Removal of Front Grille
199
Removal of Electrical Box
202
Removal of Pcbs
206
Removal of Horizontal Blades / Swing Motors
215
Removal of Indoor Heat Exchanger
223
Removal of Fan Motor / Fan Rotor
227
Removal of Vertical Blade Assys
230
Indoor Unit: FTXS30/36LVJU
231
Removal of Air Filters / Front Panel
231
Removal of Front Grille
234
Removal of Electrical Box
238
Removal of Pcbs
242
Removal of Horizontal Blades / Swing Motors
251
Removal of Fan Motor
260
Removal of Indoor Heat Exchanger
264
Removal of Fan Rotor
268
Removal of Vertical Blade Assys
270
Outdoor Unit: RXS09/12LVJU
271
Removal of Outer Panels / Fan Motor
271
Removal of Electrical Box
280
Removal of Pcbs
283
Removal of Reactor / Partition Plate
291
Removal of Sound Blankets
293
Removal of Four-Way Valve
295
Removal of Fourway Valve
295
Removal of Compressor
298
Outdoor Unit: RXS15/18LVJU
300
Removal of Outer Panels
300
Removal of Outdoor Fan / Fan Motor
303
Removal of Electrical Box
307
Removal of Pcbs
318
Removal of Sound Blankets / Thermistors
326
Removal of Four-Way Valve
330
Removal of Fourway Valve
330
Removal of Electronic Expansion Valve
331
Removal of Compressor
333
Outdoor Unit: RXS24LVJU
336
Removal of Outer Panels
336
Removal of Electrical Box
350
Removal of Pcbs
354
Removal of Fan Motor
357
Removal of Coils / Thermistors
358
Removal of Sound Blankets
361
Removal of Compressor
364
Outdoor Unit: RKS30/36LVJU, RXS30/36LVJU
366
Removal of Outer Panels
366
Removal of Electrical Box
377
Removal of Pcbs
381
Removal of Fan Motor
384
Removal of Coils / Thermistors
385
Removal of Sound Blankets
388
Removal of Compressor
390
Trial Operation and Field Settings
392
Pump down Operation
393
Forced Cooling Operation
394
Trial Operation
396
Field Settings
397
Model Type Setting
397
Temperature Display Switch
397
When 2 Units Are Installed in 1 Room
398
Facility Setting Jumper and Switch (Cooling at Low Outdoor Temperature)
399
Jumper Settings
400
Application of Silicon Grease to a Power Transistor and a Diode Bridge391
401
Application of Silicon Grease to a Power Transistor and a Diode Bridge
401
Appendix
402
Piping Diagrams
403
Indoor Unit
403
Outdoor Unit
406
Wiring Diagrams
409
Indoor Unit
409
Outdoor Unit
411
Other manuals for Daikin RKS30LVJU
Engineering Data
108 pages
Installation Manual
14 pages
5
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Daikin RKS30LVJU Specifications
General
Type
Split System
Power Supply
220-240 V, 50 Hz
Weight (Indoor Unit)
9 kg
Refrigerant
R32
Energy Efficiency Ratio (Cooling)
9.0
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