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RXS25K3V1B
Daikin RXS25K3V1B User Manual
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Outdoor Unit
SiBE05-72
2EE
24
Printed Circ
uit Boar
d Connecto
r Wiring
Diagram
Filter PCB (PCB1)
1)
S11
Connector
for main PCB
2)
HL1, HN1
, S
Connector
for
termi
nal board
3)
E1
Terminal f
or
earth wi
re
4)
E2
Connector f
or t
erminal
board (
eart
h)
5)
HL2, HN2
Connector
for main PCB
6)
HR
1
Connector f
or reac
tor
7) FU3
Fuse (20 A, 250 V)
8)
V2, V3
Varis
tor
E1
E2
V2
FU3
HL1
HN1
S
to S50
(on main PCB)
HL2
S11
HN2
HR1
3P203203-1
V3
33
35
Table of Contents
Default Chapter
3
Table of Contents
3
Part 1 List of Functions
3
Part 2 Specifications
3
Part 3 Printed Circuit Board Connector Wiring Diagram
3
Safety Cautions
6
Warnings and Cautions Regarding Safety of Workers
6
Warnings and Cautions Regarding Safety of Users
8
Icons Used
10
Part 1 List of Functions
11
Functions
12
Part 2 Specifications
17
Specifications
18
Cooling Only
18
Heat Pump
21
Part 3 Printed Circuit Board Connector Wiring Diagram
28
Indoor Unit
29
Outdoor Unit
31
Rk(X)S25/35E2V1B
31
Rk(X)S25/35G2V1B
33
Rk(X)S25/35G2V1B9, Rxs25/35J2V1B, Rxs25K3V1B, Rxs35K2V1B, Rxs25/35L2V1B
35
Rxs25/35L3V1B
37
Part 4 Functions and Control
38
Main Functions
39
Temperature Control
39
Frequency Principle
39
Airflow Direction Control
41
Fan Speed Control for Indoor Unit
41
Program Dry Operation
42
Automatic Operation
43
Thermostat Control
44
NIGHT SET Mode
45
HOME LEAVE Operation
46
Inverter POWERFUL Operation
47
Clock Setting
48
Other Functions
49
Thermistor Functions
50
Control Specification
51
Mode Hierarchy
51
Frequency Control
52
Controls at Mode Changing / Start-Up
54
Compressor Protection Function
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
Part 5 Remote Controller
65
Remote Controller
66
Mode Button
67
Quiet Button
67
Reset Button
67
Part 6 Service Diagnosis
68
General Problem Symptoms and Check Items
69
Troubleshooting with LED
70
Indoor Unit
70
Outdoor Unit
70
Service Diagnosis
71
Troubleshooting
74
Error Codes and Descriptions
74
Indoor Unit PCB Abnormality
75
Freeze-Up Protection Control / Heating Peak-Cut Control
76
Fan Motor (AC Motor) or Related Abnormality
77
Thermistor or Related Abnormality (Indoor Unit)
79
Refrigerant Shortage
80
Low-Voltage Detection or Over-Voltage Detection
82
Signal Transmission Error (between Indoor Unit and Outdoor Unit)
84
Unspecified Voltage (between Indoor Unit and Outdoor Unit)
86
Outdoor Unit PCB Abnormality
87
OL Activation (Compressor Overload)
89
Compressor Lock
91
DC Fan Lock
92
Input Overcurrent Detection
93
Four Way Valve Abnormality
94
Discharge Pipe Temperature Control
96
High Pressure Control in Cooling
97
Compressor System Sensor Abnormality
98
Position Sensor Abnormality
99
DC Voltage / Current Sensor Abnormality
101
Thermistor or Related Abnormality (Outdoor Unit)
102
Electrical Box Temperature Rise
104
Radiation Fin Temperature Rise
107
Output Overcurrent Detection
110
Check
112
Thermistor Resistance Check
112
Hall IC Check
113
Power Supply Waveforms Check
113
Electronic Expansion Valve Check
114
Four Way Valve Performance Check
115
Inverter Unit Refrigerant System Check
115
Inverter Analyzer Check
116
Rotation Pulse Check on the Outdoor Unit PCB
118
Installation Condition Check
119
Discharge Pressure Check
119
Outdoor Fan System Check
120
Main Circuit Short Check
120
Power Module Check
122
Part 7 Trial Operation and Field Settings
125
Tips for Servicing
126
Pump down Operation
126
Forced Cooling Operation
126
Trial Operation
128
Field Settings
129
When 2 Units Are Installed in 1 Room
129
Facility Setting Jumper (Cooling at Low Outdoor Temperature)
130
Jumper and Switch Settings
131
Silicone Grease on Power Transistor / Diode Bridge
132
Part 8 Appendix
133
Piping Diagrams
134
Indoor Unit
134
Outdoor Unit
135
Wiring Diagrams
138
Indoor Unit
138
Outdoor Unit
139
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Installation Manual
19 pages
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Daikin RXS25K3V1B Specifications
General
Brand
Daikin
Model
RXS25K3V1B
Category
Air Conditioner
Language
English
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