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FTXG25CVMAW
Daikin FTXG25CVMAW Service Manual
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Printed in Si
ngapore 0
7/2004
AK COS
The specifications, designs, and information in this brochure are subject to change without notice.
All rights reserved
c
Dealer
Head Office:
Umeda Center Bldg., 4-12, Nakazaki-Nishi
2-chome, Kita-ku, Osaka, 530-8323 Japan
Tokyo Office:
JR Shinagawa East Bldg., 18-1, Konan
2-chome, Minato-ku, Tokyo, 108-0075 Japan
http://www.daikin.com/global/
195
Table of Contents
Default Chapter
3
Table of Contents
3
Introduction
6
Safety Cautions
6
Caution in Repair
6
Cautions Regarding Products after Repair
7
Inspection after Repair
8
Using Icons
9
Using Icons List
9
Part 1 List of Functions
10
List of Functions
11
Part 2 Specifications
12
Specifications
13
Part 3 Printed Circuit Board
18
Connector Wiring Diagram
18
Printed Circuit Board Connector Wiring Diagram
19
Indoor Unit
19
Outdoor Unit
21
Part 4 Function and Control
24
Main Functions
25
Frequency Principle
25
Power-Airflow Flap, Wide-Angle Louvres and Auto-Swing
27
Operation Starting Control
28
Fan Speed Control for Indoor Units
29
Programme Dry Function
30
Automatic Operation
31
NIGHT SET Mode
32
Intelligent Eye
33
Inverter Powerful Operation
34
Other Functions
35
Function of Thermistor
36
Heat Pump Model
36
Control Specification
37
Mode Hierarchy
37
Frequency Control
38
Controls at Mode Changing / Start-Up
39
Minutes Standby
40
Compressor Protection Function
40
Discharge Pipe Control
41
Input Current Control
41
Freeze-Up Protection Control
42
Heating Peak-Cut Control
42
Fan Control
43
Liquid Compression Protection Function 2
43
Defrost Control
44
Electronic Expansion Valve Control
45
Discharge Pipe
46
Discharge Pipe Temperature Control
47
Malfunctions
48
Forced Operation Mode
49
Additional Function
49
Part 5 System Configuration
50
System Configuration
51
Instruction
52
Safety Precautions
52
Installation Site
53
Electrical Work
53
Names of Parts
54
I Outdoor Unit
55
Remote Controller
56
Preparation before Operation
57
AUTO · DRY · COOL · HEAT · FAN Operation
60
Adjusting the Air Flow Direction
62
POWERFUL Operation
64
OUTDOOR UNIT SILENT Operation
65
INTELLIGENT EYE Operation
66
TIMER Operation
68
Care and Cleaning
70
I Air Filter
71
Titanium Apatite Photocatalytic
71
Before a Long Idle Period
72
Troubleshooting
73
Check Again
74
Disposal Requirements
75
Part 6 Service Diagnosis
76
Caution for Diagnosis
77
Problem Symptoms and Measures
78
Service Check Function
79
Troubleshooting
82
Error Codes and Description
82
Indoor Unit PCB Abnormality
83
Freeze-Up Protection Control or High Pressure Control
84
Fan Motor (DC Motor) or Related Abnormality
86
Thermistor or Related Abnormality (Indoor Unit)
88
Front Panel Open / Close Fault
89
Signal Transmission Error (between Indoor and Outdoor Unit)
90
Signal Transmission Error (between Indoor Unit and Wired Remote Controller )
91
Unspecified Voltage (between Indoor and Outdoor Unit)
92
Outdoor Unit PCB Abnormality
93
OL Activation (Compressor Overload)
94
Compressor Lock
95
DC Fan Lock
96
Input over Current Detection
97
Four Way Valve Abnormality
98
Discharge Pipe Temperature Control
100
High Pressure Control in Cooling
101
Sensor Abnormality Around Compressor System
103
Position Sensor Abnormality
104
DC Voltage / Current Sensor Abnormality
105
Thermistor or Related Abnormality (Outdoor Unit)
106
Output over Current Detection
108
Insufficient Gas
110
Over-Voltage Detection
112
Check
113
How to Check
113
Four Way Valve Performance Check
114
Thermistor Resistance Check
115
Installation Condition Check
116
Discharge Pressure Check
117
Outdoor Unit Fan System Check
117
Power Supply Waveforms Check
118
Power Transistor Check
119
Part 7 Removal Procedure
120
Indoor Unit
121
Removal of Air Filter
121
Removal of Front Grille
123
Removal of Assembly of Front Panel Mechanism
129
Removal of Lamp Cover
133
Removal of Horizontal Blade
134
Removal of Reduction Motor
135
Removal of Outlet Grille
138
Removal of Vertical Blades and Swing Motor
139
Removal of Electrical Box
143
Removal of PCB
149
Removal of Heat Exchanger
155
Removal of Fan Rotor and Fan Motor
158
Outdoor Unit
161
Removal of Panels and Fan Motor
161
Removal of Electrical Box
168
Removal of Reactor and Partition Plate
170
Removal of Sound Blanket
172
Removal of Four Way Valve
174
Removal of Compressor
176
Removal of PCB
178
Part 8 Others
182
Others
183
Test Run from the Remote Controller
183
Jumper Settings
184
Part 9 Appendix
186
Piping Diagrams
187
Wiring Diagrams
188
Index
190
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Daikin FTXG25CVMAW Specifications
General
Brand
Daikin
Model
FTXG25CVMAW
Category
Air Conditioner
Language
English
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