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FTXB50C
Daikin FTXB50C Service Manual
88 pages
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SER
VICE MANUAL
Inverter Wall Mounted Single Split
dd
SM-5WM-Y
-EU-A3
MODELS
FTXN25/35/50/60L
RXN25/35/50/60L
FTXN25/35/50/60M
RXN25/35/50/60M
FTXK25/35/50/60A
RXK25/35/50/60A
FTXN25/35/50/60N
RXN25/35/50/60N
FTXC25/35/50/60A
RXC25/35/50/60A
FTXB50/60A
RXB50/60A
FTXB50/60B
RXB50/60B
FTXB50/60C
RXB50/60C
ATXN25/35/50/60L
ARXN25/35/50/60L
ATXN25/35/50/60M
ARXN25/35/50/60M
ATXN25/35/50/60N
ARXN25/35/50/60N
ATXB50/60C
ARXB50/60C
2
Table of Contents
Default Chapter
1
Service Manual
1
Table of Contents
3
1 Inverter Single Split
9
Product Line-Up
9
Printed Circuit Board (PCB) Connector Wiring Diagram
12
Piping Length & Elevation
25
2 Function & Control
26
Temperature Control
26
Cooling and Heating Mode Operation
26
Fan Mode
27
Auto Mode
27
Cold Draft Prevention
28
Sleep Mode
28
Quiet Function
29
Eco+ Function
29
ID-OD Communication
29
Thermistors in RXN,RXB,RXC,ARXN,ARXB
30
Minimum off Time Control
30
Auto Restart
30
Auto Random Restart
30
Four Way Valve Control
32
Outdoor Fan Control
32
Rotation Regulating Functions
32
Defrost Cycle
34
Indoor Coil Freeze Prevention
34
High Pressure Protection
35
Discharge Pipe Temperature Control
35
Oil Recovery Control (Applicable for ARXN,RXN50/60L)
36
Overall Current Control
36
3 Service Diagnosis
37
Error Indication from Indoor
37
Error Code Retrieved by Handset
40
Error Indication from Outdoor
42
Error Code Description for Inverter
44
Wiring Connection
72
Refrigerant Diagram
78
Appendix A
80
Installation Condition Check
85
Outdoor Fan System Check
85
Other manuals for Daikin FTXB50C
Operating Manual
59 pages
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Daikin FTXB50C Specifications
General
Cooling Capacity
5.0 kW
Energy Efficiency Ratio (EER)
3.21
Indoor Unit Weight
12 kg
Power Supply
220-240 V, 50 Hz
Refrigerant
R32
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