Daikin FTKM-U Series Air Conditioner Manuals

Manuals and User Guides for Daikin FTKM-U Series Air Conditioner. We have 1 Daikin FTKM-U Series Air Conditioner manual available for free PDF download: Service Manual

Daikin FTKM-U Series Service Manual (119 pages)

Inverter Pair Wall Mounted Type R-32

Brand: Daikin | Category: Inverter | Size: 16 MB

Table of Contents
2
Introduction
5
Safety Cautions
6
Warnings and Cautions Regarding Safety of Workers
6
Warnings and Cautions Regarding Safety of Users
12
Icons Used
14
Revision History
15
Part 1 General Information
16
Applicable Models
17
Functions
18
Part 2 Specifications
19
Specifications
20
Part 3 Printed Circuit Board Connector Wiring Diagram
22
Indoor Unit
23
Outdoor Unit
25
Class
25
Class
26
Class
27
Part 4 Functions and Control
29
Main Functions
30
Temperature Control
30
Frequency Principle
30
Airflow Direction Control
32
Fan Speed Control for Indoor Unit
33
COANDA Operation
33
Program Dry Operation
34
Thermostat Control
35
Good Sleep off Timer
35
SMELL PROOF Operation
35
Flash Streamer Air Purifying Operation
36
ECONO Operation
37
POWERFUL Operation
37
Dew Clean Operation
38
Default Set Temperature Setting
39
Other Functions
39
Thermistor Functions
40
Control Specification
41
Mode Hierarchy
41
Frequency Control
41
Controls at Mode Changing/Start-Up
43
Discharge Pipe Temperature Control
43
Input Current Control
44
Freeze-Up Protection Control
45
Outdoor Fan Control
45
Liquid Compression Protection Function
46
Electronic Expansion Valve Control
46
Malfunctions
49
Part 5 Remote Controller
50
Applicable Remote Controller
51
Arc484B41
52
Part 6 Service Diagnosis
53
General Problem Symptoms and Check Items
55
Troubleshooting with LED
56
Indoor Unit
56
Outdoor Unit
56
Service Diagnosis
57
Method 1
57
Method 2
58
Troubleshooting
60
Error Codes and Description
60
Indoor Unit PCB Abnormality
61
Freeze-Up Protection Control
62
Indoor Fan Motor (DC Motor) or Related Abnormality
63
Thermistor or Related Abnormality (Indoor Unit)
65
Refrigerant Shortage
66
Low-Voltage Detection or Over-Voltage Detection
68
Signal Transmission Error (between Indoor Unit and Outdoor Unit)
70
Unspecified Voltage (between Indoor Unit and Outdoor Unit)
72
Outdoor Unit PCB Abnormality
73
OL Activation (Compressor Overload)
74
Compressor Lock
76
DC Fan Lock
77
Input Overcurrent Detection
78
Discharge Pipe Temperature Control
79
High Pressure Control in Cooling
81
System Shutdown Due to Temperature Abnormality in Compressor
83
Compressor System Sensor Abnormality
84
Position Sensor Abnormality
85
DC Voltage/Current Sensor Abnormality
87
Thermistor or Related Abnormality (Outdoor Unit)
88
Electrical Box Temperature Rise
89
Radiation Fin Temperature Rise
90
Output Overcurrent Detection
91
Error Codes None
93
Check
94
Thermistor Resistance Check
94
Indoor Fan Motor Connector Check
95
Power Supply Waveform Check
96
Electronic Expansion Valve Check
96
Inverter Unit Refrigerant System Check
97
Inverter Analyzer Check
97
Outdoor Fan Motor Check
99
Installation Condition Check
100
Discharge Pressure Check
100
Outdoor Fan System Check
101
Main Circuit Short Check
101
Power Module Check
103
Part 7 Trial Operation and Field Settings
105
Pump down Operation
106
Forced Cooling Operation
107
Trial Operation
108
Field Settings
109
When 2 Units Are Installed in 1 Room
109
Silicone Grease on Power Transistor/Diode Bridge
110
Part 8 Appendix
111
Piping Diagrams
112
Indoor Unit
112
Outdoor Unit
113
Wiring Diagrams
114
Indoor Unit
114
Outdoor Unit
115
Operation Limit
118

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Daikin FTKM-U Series Service Manual (119 pages)

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