Specifications
Table Of Contents
- Cover
- Table of Contents
- Part 1 List of Functions
- Part 2 Specifications
- Part 3 Printed Circuit Board Connector Wiring Diagram
- Part 4 Function and Control
- Part 5 Operation Manual
- Part 6 Service Diagnosis
- 1. Caution for Diagnosis
- 2. Problem Symptoms and Measures
- 3. Service Check Function
- 4. Code Indication on the Remote Controller
- 5. Troubleshooting
- 5.1 Indoor Units
- 5.2 Outdoor Units
- 5.3 Indoor Unit PCB Abnormality A1
- 5.4 Freeze-up Protection Control or High Pressure Control A5
- 5.5 Fan Motor or Related Abnormality A6
- 5.6 Thermistor or Related Abnormality (Indoor Unit) C4,C9
- 5.7 Front Panel Open / Close Fault C7
- 5.8 Signal Transmission Error (between Indoor and OutdoorUnit) U4
- 5.9 Unspecified Voltage (between Indoor and Outdoor Units) UA
- 5.10 Freeze-up Protection Control A5
- 5.11 Outdoor Unit PCB Abnormality E1
- 5.12 OL Activation (Compressor Overload) E5
- 5.13 Compressor Lock E6
- 5.14 DC Fan Lock E7
- 5.15 Input Over Current Detection E8
- 5.16 Discharge Pipe Temperature Control F3
- 5.17 High Pressure Control in Cooling F6
- 5.18 Compressor Sensor System Abnormality H0
- 5.19 Position Sensor Abnormality H6
- 5.20 CT or Related Abnormality H8
- 5.21 Thermistor or Related Abnormality (Outdoor Unit) P4,J3,J6,J8,J9,H9
- 5.22 Electrical Box Temperature Rise L3
- 5.23 Radiation Fin Temperature Rise L4
- 5.24 Output Over Current Detection L5
- 5.25 Insufficient Gas U0
- 5.26 Low-voltage Detection or Over-voltage Detection U2
- 5.27 Signal Transmission Error (on Outdoor Unit PCB) U7
- 5.28 Anti-icing Function in Other Rooms / UnspecifiedVoltage (between Indoor and Outdoor Units) UA,UH
- 6. Check
- Part 7 Removal Procedure
- Part 8 Others
- Part 9 Appendix
- Index
- Drawings & Flow Charts

SiBE12-713 Instruction
Operation Manual 105
2. Instruction
2.1 FTK(X)S, FTXG, CTXG, FDK(X)S, FLK(X)S Series
2.1.1 Manual Contents and Reference Page
: Illustrations are for wall mounted type FTK(X)S50/60/71F as representative.
Model Series
Wall Mounted Type
FTK(X)S20/25/35/50D FTK(X)S20/25/35C FTK(X)S50/60/71F
FTXG25/35E
CTXG50E
Read before Operation
Safety Precautions 106 106 106 106
Names of Parts 108 111 114 117
Preparation before Operation 126 126 126 126
Operation
AUTO, DRY, COOL, HEAT, FAN
Operation
129 129 129 129
Adjusting the Air Flow Direction 131 133 135 137
POWERFUL Operation 141 141 141 141
OUTDOOR UNIT QUIET Operation 142 142 142 142
ECONO Operation 143 — — —
HOME LEAVE Operation — 144 144 —
INTELLIGENT EYE Operation 146 148 150 152
TIMER Operation 154 154 154 154
Note for Multi System 156 156 156 156
Care
Care and Cleaning 158 161 164 167
Trouble Shooting
Trouble Shooting 177 177 177 177
Drawing No. 3P194516-2B 3P194444-1B 3P190111-1B C : 3P166453-1C
Model Series
Duct Connected Type
Floor/Ceiling
Suspended Dual Type
FDK(X)S25/35C
FDK(X)S50/60C
FDK(X)S25/35E
FLK(X)S25/35/50/60B
Read before Operation
Safety Precautions 106 106 106
Names of Parts 120 120 123
Preparation before Operation 126 126 126
Operation
AUTO, DRY, COOL, HEAT, FAN
Operation
129 129 129
Adjusting the Air Flow Direction — — 139
POWERFUL Operation 141 141 141
OUTDOOR UNIT QUIET Operation 142 142 142
ECONO Operation — — —
HOME LEAVE Operation 144 144 144
INTELLIGENT EYE Operation — — —
TIMER Operation 154 154 154
Note for Multi System 156 156 156
Care
Care and Cleaning 170 172 174
Trouble Shooting
Trouble Shooting 177 177 177
Drawing No. 3P196326-8B 3P196326-9B 3P194444-5B