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Daikin
Air Conditioner
FT25DVM
Daikin FT25DVM Service Manual
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Si01-501
Printed Circu
it Board Connecto
r Wiring Diagram
Printed Circu
it Board Connector Wiri
ng Diagram
13
PCB Detail
P
C
B
(1
):
Cont
rol
PCB
V1
FU1
S1
S6
S7
S26
S28
S32
JC
JB
JA
LED A
S21
(R4826)
PCB(2
)
:
Si
gnal Receiver PCB
PCB(3
):
Displ
ay PCB
S29
(R4289)
RTH1
SW1
S27
LED2
LED1
(R4827)
21
23
Table of Contents
Default Chapter
3
Table of Contents
3
Introduction
6
Safety Cautions
6
Part 1 List of Function
10
Functions
11
Part 2 Specifications
14
Specifications
15
Part 3 Printed Circuit Board Connector Wiring Diagram
20
Printed Circuit Board Connector Wiring Diagram
21
Indoor Unit
21
Outdoor Unit
27
Part 4 Details of Functions
30
Functions of FT25/35/50D, FT09/13/15D Models
31
Air Flow Direction Control
31
Fan Speed Control for Indoor Units
32
Thermostat Control
33
Programme Dry Function
34
NIGHT SET Mode
35
POWERFUL Operation
36
Freeze-Up Protection Control
37
Other Functions
38
Functions of FT60D Model
39
Frequency Principle
39
Power-Airflow Dual Flaps, Wide Angle Louvers and Auto-Swing
41
Fan Speed Control for Indoor Units
42
Thermostat Control
43
Programme Dry Function
44
Night Set Mode
45
POWERFUL Operation
46
Other Functions
47
Control Specification of R60D Model
48
Function of Thermistor
48
Mode Hierarchy
49
Frequency Control
50
Controls at Mode Changing / Start-Up
52
Discharge Pipe Temperature Control
52
Input Current Control
53
Freeze-Up Protection Control
53
Fan Control
54
Liquid Compression Protection Function 2
54
Electronic Expansion Valve Control
55
Malfunctions
58
Forced Operation Mode
59
Additional Function
59
Part 5 System Configuration
60
System Configuration
61
Instructions
62
Safety Precautions
62
25/35 Class
64
50/60 Class
83
Part 6 Service Diagnosis
104
Caution for Diagnosis
105
Troubleshooting by Symptoms
107
Service Check Function
112
Troubleshooting
115
Error Codes and Description
115
Indoor Unit PCB Abnormality
116
Freeze-Up Protection Control
117
Fan Motor or Related Abnormality
118
Thermistor or Related Abnormality (Indoor Unit)
121
Signal Transmission Error (between Indoor and Outdoor Units)
122
OL Activation (Compressor Overload)
123
Compressor Lock
124
DC Fan Lock
125
Input over Current Detection
126
Discharge Pipe Temperature Control
128
High Pressure Control in Cooling
129
Position Sensor Abnormality
131
CT or Related Abnormality
132
Thermistor or Related Abnormality (Outdoor Unit)
134
Electrical Box Temperature Rise
136
Radiation Fin Temperature Rise
138
Output over Current Detection
140
Insufficient Gas
142
Low-Voltage Detection
144
Check
145
How to Check
145
Part 7 Removal Procedure
154
Ft09/13Dv2S, Ft25/35Dvm, Ft25/35Dsg
155
Removal of Air Filter
155
Removal of Front Panel
157
Removal of Front Grille
159
Removal of Horizontal Blades and Vertical Blades
162
Removal of Electrical Box
165
Removal of PCB
168
Removal of Drain Pan Unit
174
Removal of Fan Motor
178
Removal of Heat Exchanger
180
Removal of Fan Rotor
183
Ft15Dv2S, Ft50/60Dsg
186
Removal of Air Filter / Front Panel
186
Removal of Front Grille
189
Removal of Horizontal Blades / Vertical Blades
191
Removal of Electrical Box / PCB / Swing Motor
193
Removal of Heat Exchanger
199
Removal of Fan Rotor / Fan Motor
202
R25/35Dv1
204
Removal of Panels
204
Removal of Bellmouth and Left Side Plate
206
Removal of Electrical Device Mounting Plate
207
Removal of Propeller Fan and Fan Motor
208
Removal of Sound Blanket
209
Removal of Partition Plate
211
Removal of Compressor
213
R50Dsg
214
Removal of Panels
214
Removal of Electrical Box
215
Removal of Compressor
218
R60Dsg
220
Removal of the Panels and Plates
220
Removal of the Fan Motor / Propeller Fan
224
Removal of the PCB / Electrical Box
228
Removal of the Reactor
235
Removal of the Sound Blanket
237
Removal of the Electronic Expansion Valve
239
Removal of the Compressor
240
Part 8 Others
242
Others
243
Test Run from the Remote Controller
243
Jumper Settings
244
Part 9 Appendix
246
Piping Diagrams
247
Indoor Units
247
Outdoor Units
249
Wiring Diagrams
252
Indoor Units
252
Outdoor Units
256
Index
262
5
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Daikin FT25DVM Specifications
General
Brand
Daikin
Model
FT25DVM
Category
Air Conditioner
Language
English
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