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Daikin
Air Conditioner
J-Series
Daikin J-Series User Manual
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SiBE04110
1
Outdoor Unit - R
K(X)S20/25/3
5J2V1B
Remo
val P
roced
ure
186
2.6
Removal of Fou
r Way Valve
P
r
o
c
e
d
u
r
e
Warni
ng
Be sure
to wai
t
for
10
minut
es or
more a
f
ter
tur
ni
ng of
f
al
l po
wer
supplies before di
sassembling work.
Step
Procedure
Points
1
Pull
out t
he elect
ronic
expansion v
alve coi
l
.
2
Remove the terminal
cover.
3
Disconnect t
he lead
wires of
the
com
pressor.
(R7233)
Electronic
expansion
valv
e coil
(R7234)
T
er
minal cover
V
W
U
(R7235)
Red (U)
Y
ellow (V)
Blue (W)
196
198
Table of Contents
Table of Contents
3
Introduction
7
Safety Cautions
7
Used Icons
11
Part 1 List of Functions
12
Functions
13
Cooling Only
13
Heat Pump
14
Part 2 Specifications
15
Specifications
16
Cooling Only
16
Heat Pump
18
Part 3 Printed Circuit Board Connector Wiring Diagram
21
Indoor Unit
22
Outdoor Unit
25
Rk(X)S20/25/35J2V1B
25
Rk(X)S42J2V1B
27
Rk(X)S50J2V1B
29
Part 4 Function and Control
31
Main Functions
32
Temperature Control
32
Frequency Principle
32
Airflow Direction Control
34
Fan Speed Control for Indoor Units
35
Program Dry Operation
36
Automatic Operation
37
Thermostat Control
38
NIGHT SET Mode
39
ECONO Operation
40
2-Area INTELLIGENT EYE Operation
41
Inverter POWERFUL Operation
43
Other Functions
44
Function of Thermistor
45
Control Specification
46
Mode Hierarchy
46
Frequency Control
47
Controls at Mode Changing / Start-Up
49
Discharge Pipe Temperature Control
51
Input Current Control
52
Freeze-Up Protection Control
53
Heating Peak-Cut Control
53
Outdoor Fan Control
54
Liquid Compression Protection Function
54
Defrost Control
55
Electronic Expansion Valve Control
56
Malfunctions
59
Part 5 Operation Manual
60
System Configuration
61
Operation Manual
62
Remote Controller
62
AUTO · DRY · COOL · HEAT · FAN Operation
63
Adjusting the Airflow Direction
65
COMFORT AIRFLOW and INTELLIGENT EYE Operation
67
POWERFUL Operation
71
OUTDOOR UNIT QUIET Operation
72
ECONO Operation
73
OFF TIMER Operation
74
ON TIMER Operation
75
WEEKLY TIMER Operation
76
Part 6 Service Diagnosis
84
Troubleshooting with LED
86
Indoor Unit
86
Outdoor Unit
86
Problem Symptoms and Measures
87
Service Check Function
88
ARC452 Series
88
Troubleshooting
91
Error Codes and Description
91
Indoor Unit PCB Abnormality
92
Freeze-Up Protection Control or Heating Peak-Cut Control
93
Fan Motor (DC Motor) or Related Abnormality
95
Thermistor or Related Abnormality (Indoor Unit)
97
Signal Transmission Error (between Indoor Unit and Outdoor Unit)
98
Unspecified Voltage (between Indoor Unit and Outdoor Unit)
99
Outdoor Unit PCB Abnormality
100
OL Activation (Compressor Overload)
103
Compressor Lock
104
DC Fan Lock
105
Input Overcurrent Detection
106
Four Way Valve Abnormality
107
Discharge Pipe Temperature Control
109
High Pressure Control in Cooling
111
Compressor System Sensor Abnormality
112
Position Sensor Abnormality
114
DC Voltage / Current Sensor Abnormality (20/25/35/42 Class)
117
CT or Related Abnormality (50 Class)
118
Thermistor or Related Abnormality (Outdoor Unit)
120
Electrical Box Temperature Rise
122
Radiation Fin Temperature Rise
124
Output Overcurrent Detection
126
Refrigerant Shortage
128
Low-Voltage Detection or Over-Voltage Detection
131
Signal Transmission Error on Outdoor Unit PCB (50 Class Only)
133
Check
134
Fan Motor Connector Output Check
134
Electronic Expansion Valve Check
134
Four Way Valve Performance Check
135
Thermistor Resistance Check
136
Installation Condition Check
137
Discharge Pressure Check
137
Outdoor Fan System Check
138
Power Supply Waveforms Check
138
Inverter Units Refrigerant System Check
138
Capacitor Voltage Check
139
Power Module Check
139
Inverter Checker" Check
140
Rotation Pulse Check on the Outdoor Unit PCB
142
Main Circuit Short Check
143
Part 7 Removal Procedure
144
Indoor Unit
145
Removal of Air Filters
145
Removal of Front Panel
147
Removal of Front Grille
149
Removal of Horizontal Blades / Vertical Blades
152
Removal of Electrical Box
155
Removal of Pcbs
158
Removal of Indoor Heat Exchanger
163
Removal of Swing Motors
166
Removal of Fan Motor
170
Outdoor Unit - RK(X)S20/25/35J2V1B
173
Removal of Outer Panels / Fan Motor
173
Removal of Electrical Box
182
Removal of Pcbs
185
Removal of Reactor / Partition Plate
193
Removal of Sound Blankets
195
Removal of Four Way Valve
197
Removal of Compressor
200
Outdoor Unit - RK(X)S42J2V1B
202
Removal of Outer Panels
202
Removal of Electrical Box
204
Removal of PCB
209
Removal of Sound Blankets
214
Removal of Outdoor Fan / Fan Motor
216
Removal of Thermistors
219
Removal of Four Way Valve / Electronic Expansion Valve
220
Removal of Compressor
223
Outdoor Unit - RK(X)S50J2V1B
226
Removal of Outer Panels
226
Removal of Outdoor Fan / Fan Motor
230
Removal of Electrical Box
234
Removal of PCB
239
Removal of Sound Blankets / Thermistors
242
Removal of Four Way Valve
244
Removal of Electronic Expansion Valve
245
Removal of Compressor
246
Part 8 Trial Operation and Field Settings
249
Pump down Operation
250
Forced Cooling Operation
251
Trial Operation
253
Field Settings
254
Model Type Setting
254
When 2 Units Are Installed in 1 Room
254
Standby Electricity Saving
255
Facility Setting Jumper and Switch (Cooling at Low Outdoor Temperature)
256
Jumper and Switch Settings
257
Application of Silicon Grease to a Power Transistor and a Diode Bridge
258
Part 9 Appendix
259
Piping Diagrams
260
Indoor Unit
260
Outdoor Unit
261
Wiring Diagrams
265
Indoor Unit
265
Outdoor Unit
265
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Daikin J-Series Specifications
General
Brand
Daikin
Model
J-Series
Category
Air Conditioner
Language
English
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