Daikin F-Series Service Manual Download Page 247

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Troubleshooting

SiBE12-713

236

Service Diagnosis

5.3

Indoor Unit PCB Abnormality

Remote
Controller
Display

Method of
Malfunction
Detection

Evaluation of zero-cross detection of power supply by indoor unit.

Malfunction
Decision
Conditions

When there is no zero-cross detection in approximately 10 continuous seconds.

Supposed
Causes

Faulty indoor unit PCB

Faulty connector connection

Troubleshooting

Note:

Connector Nos. vary depending on models.
Control connector

Connector connection check
(note).

YES

Is it normal?

Correct connections.

Replace PCBs.

(R1400)

Caution

Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.

Model Type

Connector No.

Wall Mounted Type 20 / 25 / 35 class Terminal strip~Control PCB

Wall Mounted Type 50 / 60 / 71 class Terminal strip~Control PCB

Duct Connected Type

Terminal strip~Control PCB

Floor / Ceiling Suspended Dual Type S37

Floor Standing Type

Terminal strip~Control PCB

Summary of Contents for F-Series

Page 1: ... Applied Models Inverter Multi Cooling Only Inverter Multi Heat Pump F Series SiBE12 713 ...

Page 2: ... FTKS50D2V1W FVXS50FV1B FTKS50D2V1L FHQ35BVV1B FHQ50BVV1B FHQ60BVV1B Outdoor Unit 4MKS75F2V1B zHeat Pump Indoor Unit FTXG25EV1BW FTXS35D3VMW FDXS25CAVMB FLXS25BAVMB FTXG25EV1BS FTXS35D3VML FDXS35CAVMB FLXS35BAVMB FTXG35EV1BW FTXS50D2V1W FDXS50CVMB FLXS50BAVMB FTXG35EV1BS FTXS50D2V1L FDXS60CVMB FLXS60BAVMB CTXG50EV1BW FTXS20CAVMB FDXS25EAVMB FVXS25FV1B CTXG50EV1BS FTXS25CAVMB FDXS35EAVMB FVXS35FV1B...

Page 3: ...iling Suspended Type 54 1 6 Outdoor Units 56 Part 4 Function and Control 59 1 Main Functions 60 1 1 Frequency Principle 60 1 2 Power Airflow Dual Flaps Wide Angle Louvers and Auto Swing 62 1 3 Operation Starting Control 64 1 4 Fan Speed Control for Indoor Units 65 1 5 Programme Dry Function 66 1 6 Automatic Operation 67 1 7 Thermostat Control 68 1 8 Night Set Mode 69 1 9 ECONO Mode 70 1 10 INTELLI...

Page 4: ...ion on the Remote Controller 233 4 1 Error Codes and Description of Fault 233 5 Troubleshooting 234 5 1 Indoor Units 234 5 2 Outdoor Units 235 5 3 Indoor Unit PCB Abnormality 236 5 4 Freeze up Protection Control or High Pressure Control 237 5 5 Fan Motor or Related Abnormality 239 5 6 Thermistor or Related Abnormality Indoor Unit 242 5 7 Front Panel Open Close Fault 243 5 8 Signal Transmission Err...

Page 5: ...288 1 1 Removal of the Panels and Plates 288 1 2 Removal of the Electrical Box 292 1 3 Removal of the PCB 300 1 4 Removal of the Propeller Fan Fan Motor 306 1 5 Removal of the Sound Blanket 308 1 6 Removal of Electronic Expansion Valve Coil Four Way Valve Coil and Thermistor 312 1 7 Removal of the Distributor 315 1 8 Removal of the Four Way Valve 316 1 9 Removal of the Compressor 317 Part 8 Others...

Page 6: ...wer cable plug from the plug socket before disassembling the equipment for repair Working on the equipment that is connected to the power supply may cause an electrical shook If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas is discharged during the repair work ...

Page 7: ...ctrical shock Do not clean the air conditioner by splashing water Washing the unit with water may cause an electrical shock Be sure to provide the grounding when repairing the equipment in a humid or wet place to avoid electrical shocks Be sure to turn off the power switch and unplug the power cable when cleaning the equipment The internal fan rotates at a high speed and cause injury Be sure to co...

Page 8: ...heat generation or fire When wiring between the indoor and outdoor units make sure that the terminal cover does not lift off or dismount because of the cable If the cover is not mounted properly the terminal connection section may cause an electrical shock excessive heat generation or fire Do not damage or modify the power cable Damaged or modified power cable may cause an electrical shock or fire...

Page 9: ...event children from swallowing it If a child swallows the coin battery see a doctor immediately Warning Caution Installation of a leakage breaker is necessary in some cases depending on the conditions of the installation site to prevent electrical shocks Do not install the equipment in a place where there is a possibility of combustible gas leaks If the combustible gas leaks and remains around the...

Page 10: ...e to install the packing and seal on the installation frame properly If the packing and seal are not installed properly water may enter the room and wet the furniture and floor For unitary type only Caution Icon Type of Information Description Note Note A note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Caution Caution A cau...

Page 11: ...Introduction SiBE12 713 x ...

Page 12: ...SiBE12 713 List of Functions 1 Part 1 List of Functions 1 List of Functions 2 1 1 Cooling Only Models 2 1 2 Heat Pump Models 7 ...

Page 13: ...ur On Off Timer 3 Step Airflow H P Only 72 Hour On Off Timer Comfort Control Auto Fan Speed Night Set Mode Indoor Unit Quiet Operation Worry Free Reliability Durability Auto Restart after Power Failure Night Quiet Mode Automatic Self Diagnosis Digital LED Display Outdoor Unit Quiet Operation Manual Wiring Error Check Intelligent Eye Anticorrosion Treatment of Outdoor Heat Exchanger Quick Warming F...

Page 14: ...On Off Timer 3 Step Airflow H P Only Night Set Mode Comfort Control Auto Fan Speed Worry Free Reliability Durability Auto Restart after Power Failure Indoor Unit Quiet Operation Self Diagnosis Digital LED Display Night Quiet Mode Automatic Wiring Error Check Outdoor Unit Quiet Operation Manual Anticorrosion Treatment of Outdoor Heat Exchanger Intelligent Eye Quick Warming Function Flexibility Mult...

Page 15: ... Timer Comfort Airflow Mode Night Set Mode 3 Step Airflow H P Only Worry Free Reliability Durability Auto Restart after Power Failure Comfort Control Auto Fan Speed Self Diagnosis Digital LED Display Indoor Unit Quiet Operation Wiring Error Check Night Quiet Mode Automatic Anticorrosion Treatment of Outdoor Heat Exchanger Outdoor Unit Quiet Operation Manual Flexibility Multi Split Split Type Compa...

Page 16: ...Timer Comfort Airflow Mode Night Set Mode 3 Step Airflow H P Only Worry Free Reliability Durability Auto Restart after Power Failure Comfort Control Auto Fan Speed Self Diagnosis Digital LED Display Indoor Unit Quiet Operation Wiring Error Check Night Quiet Mode Automatic Anticorrosion Treatment of Outdoor Heat Exchanger Outdoor Unit Quiet Operation Manual Flexibility Multi Split Split Type Compat...

Page 17: ...ight Set Mode 3 Step Airflow H P Only Worry Free Reliability Durability Auto Restart after Power Failure Comfort Control Auto Fan Speed Self Diagnosis Digital LED Display Indoor Unit Quiet Operation Wiring Error Check Night Quiet Mode Automatic Anticorrosion Treatment of Outdoor Heat Exchanger Outdoor Unit Quiet Operation Manual Flexibility Multi Split Split Type Compatible Indoor Unit Intelligent...

Page 18: ...mer 3 Step Airflow H P Only 72 Hour On Off Timer Comfort Control Auto Fan Speed Night Set Mode Indoor Unit Quiet Operation Worry Free Reliability Durability Auto Restart after Power Failure Night Quiet Mode Automatic Self Diagnosis Digital LED Display Outdoor Unit Quiet Operation Manual Wiring Error Check Intelligent Eye Anticorrosion Treatment of Outdoor Heat Exchanger Quick Warming Function Hot ...

Page 19: ...low Mode 72 Hour On Off Timer 3 Step Airflow H P Only Night Set Mode Comfort Control Auto Fan Speed Worry Free Reliability Durability Auto Restart after Power Failure Indoor Unit Quiet Operation Self Diagnosis Digital LED Display Night Quiet Mode Automatic Wiring Error Check Outdoor Unit Quiet Operation Manual Anticorrosion Treatment of Outdoor Heat Exchanger Intelligent Eye Quick Warming Function...

Page 20: ...ght Set Mode 3 Step Airflow H P Only Worry Free Reliability Durability Auto Restart after Power Failure Comfort Control Auto Fan Speed Self Diagnosis Digital LED Display Indoor Unit Quiet Operation Wiring Error Check Night Quiet Mode Automatic Anticorrosion Treatment of Outdoor Heat Exchanger Outdoor Unit Quiet Operation Manual Flexibility Multi Split Split Type Compatible Indoor Unit Intelligent ...

Page 21: ...Hour On Off Timer 3 Step Airflow H P Only Night Set Mode Comfort Control Auto Fan Speed Worry Free Reliability Durability Auto Restart after Power Failure Indoor Unit Quiet Operation Self Diagnosis Digital LED Display Night Quiet Mode Automatic Wiring Error Check Outdoor Unit Quiet Operation Manual Anticorrosion Treatment of Outdoor Heat Exchanger Intelligent Eye Flexibility Multi Split Split Type...

Page 22: ...Timer Comfort Airflow Mode Night Set Mode 3 Step Airflow H P Only Worry Free Reliability Durability Auto Restart after Power Failure Comfort Control Auto Fan Speed Self Diagnosis Digital LED Display Indoor Unit Quiet Operation Wiring Error Check Night Quiet Mode Automatic Anticorrosion Treatment of Outdoor Heat Exchanger Outdoor Unit Quiet Operation Manual Flexibility Multi Split Split Type Compat...

Page 23: ... Night Set Mode 3 Step Airflow H P Only Worry Free Reliability Durability Auto Restart after Power Failure Comfort Control Auto Fan Speed Self Diagnosis Digital LED Display Indoor Unit Quiet Operation Wiring Error Check Night Quiet Mode Automatic Anticorrosion Treatment of Outdoor Heat Exchanger Outdoor Unit Quiet Operation Manual Flexibility Multi Split Split Type Compatible Indoor Unit Intellige...

Page 24: ...SiBE12 713 Specifications 13 Part 2 Specifications 1 Specifications 14 1 1 Indoor Units Cooling Only 14 1 2 Outdoor Units Cooling Only 23 1 3 Indoor Units Heat Pump 24 1 4 Outdoor Units Heat Pump 35 ...

Page 25: ...iquid and Gas Pipes Piping Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ18 0 φ18 0 Drawing No 3D051079 3D051080 Conversion Formulae kcal h kW 860 Btu h kW 3414 cfm m min 35 3 Model FTKS25D3VMW FTKS25D3VML Rated Capacity 2 5kW Class 2 5kW Class Front Panel Color White Silver Line Air Flow Rates m min cfm H 8 7 307 8 7 307 M 6 7 237 6 7 237 L 4 7 166 4 7 166 SL 3 9 138 3 9 138 Fan T...

Page 26: ... Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ18 0 φ18 0 Drawing No 3D051083 3D051084 Conversion Formulae kcal h kW 860 Btu h kW 3414 cfm m min 35 3 Model FTKS50D2V1W FTKS50D2V1L Rated Capacity 5 0kW Class 5 0kW Class Front Panel Color White Silver Line Air Flow Rates m min cfm H 11 4 402 11 4 402 M 9 3 328 9 3 328 L 7 1 251 7 1 251 SL 6 2 219 6 2 219 Fan Type Cross Flow Fan Cross Flow Fan M...

Page 27: ...on Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ18 0 φ18 0 Drawing No 3D050947 3D050949 Conversion Formulae kcal h kW 860 Btu h kW 3414 cfm m min 35 3 Model FTKS35CAVMB FTKS50FV1B Rated Capacity 3 5kW Class 5 0kW Class Front Panel Color White White Air Flow Rates m min cfm H 7 7 272 14 7 519 M 6 0 212 12 4 438 L 4 4 155 10 3 364 SL 3 8 134 9 5 335 Fan Type Cross Flow Fan Cross Flow Fan Motor...

Page 28: ...le Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 18 0 20 Power Consumption Rated W 40 45 Power Factor 96 6 97 8 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 290 1 050 238 290 1 050 238 Packaged Dimensions H W D mm 337 1 147 366 337 1 147 366 Weight kg 12 12 Gross Weight kg 17 17 Operation Sound H M L SL dBA 45 41 36 33 46 42 ...

Page 29: ...tic Pressure Pa 40 40 Moisture Removal L h 1 2 1 9 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Piping Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm VP20 O D φ26 I D φ20 VP20 O D φ26 I D φ20 Drawing No 3D048947C 3D048948C Conversion Formulae kcal h kW 860 Btu h kW 3414 cfm m min 35 3 Model FDKS50CVMB FDKS60CVMB Rated Capacity 5 0kW Class 6 0kW Class Front Pane...

Page 30: ...2 Speed Steps 5 Steps Quiet Auto 5 Steps Quiet Auto Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 48 0 48 Power Consumption Rated W 71 71 Power Factor 64 3 64 3 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 200 700 620 200 700 620 Packaged Dimensions H W D mm 274 906 751 274 906 751 Weight kg 21 21 Gross W...

Page 31: ...es Piping Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ18 0 φ18 0 Drawing No 3D050862 3D050864 Conversion Formulae kcal h kW 860 Btu h kW 3414 cfm m min 35 3 Model FLKS50BAVMB FLKS60BAVMB Rated Capacity 5 0W Class 6 0kW Class Front Panel Color Almond White Almond White Air Flow Rates m min cfm H 11 4 402 12 0 424 M 10 0 353 10 7 378 L 8 5 300 9 3 328 SL 7 5 265 8 3 293 Fan Type Si...

Page 32: ...eration Sound H M L SL dBA 38 32 26 23 39 33 27 24 Sound Power H dBA 54 55 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Piping Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ 20 φ 20 Drawing No 3D056295 3D056296 Conversion Formulae kcal h kW 860 Btu h kW 3414 cfm m min 35 3 Model FVXS50FV1B Rated Capacity 5 0kW Class Front Panel Color White Air Flow Rates m mi...

Page 33: ...vable Washable Mildew Proof Removable Washable Mildew Proof Temperature Control Microcomputer Control Microcomputer Control Microcomputer Control Dimensions H W D mm 195 960 680 195 960 680 195 1 160 680 Packaged Dimensions H W D mm 279 1 046 818 279 1 046 818 279 1 246 818 Weight kg 24 25 27 Gross Weight kg 31 32 35 Operation Sound H L dBA 37 32 38 33 39 33 Sound Power H L dBA 53 48 54 49 55 49 H...

Page 34: ... 10 Power Consumption W H 70 M 58 L 36 Starting Current A 6 2 Dimensions H W D mm 735 936 300 Packaged Dimensions H W D mm 797 992 390 Weight kg 57 Gross Weight kg 61 Operation Sound dBA 48 Sound Power dBA 61 Piping Connection Liquid mm φ 6 4 4 Gas mm φ 9 5 2 φ12 7 1 φ15 9 1 Drain mm φ18 0 Heat Insulation Both Liquid and Gas Pipes No of Wiring Connection 3 for Power Supply 4 for Interunit Wiring M...

Page 35: ...Gas Pipes Piping Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ18 0 φ18 0 Drawing No 3D051101 3D051102 Model FTXG35EV1BW FTXG35EV1BS Cooling Heating Cooling Heating Rated Capacity 3 5kW Class 5 0kW Class Front Panel Color Mat Crystal White Mat Crystal Silver Air Flow Rates m min cfm H 8 1 285 9 6 338 8 1 285 9 6 338 M 6 5 229 8 2 289 6 5 229 8 2 289 L 4 9 173 6 7 236 4 9 173 6 7 23...

Page 36: ...iquid and Gas Pipes Both Liquid and Gas Pipes Piping Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ 12 7 φ 12 7 Drain mm φ18 0 φ18 0 Drawing No 3D051105 3D051106 Model FTXS20D3VMW FTXS20D3VML Cooling Heating Cooling Heating Rated Capacity 2 0kW Class 2 0kW Class Front Panel Color White Silver Line Air Flow Rates m min cfm H 8 7 307 9 4 332 8 7 307 9 4 332 M 6 7 237 7 6 268 6 7 237 7 6 268 L 4 7 166 5 8...

Page 37: ...ction Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ18 0 φ18 0 Drawing No 3D051087 3D051088 Model FTXS35D3VMW FTXS35D3VML Cooling Heating Cooling Heating Rated Capacity 3 5kW Class 3 5kW Class Front Panel Color White Silver Line Air Flow Rates m min cfm H 8 9 314 9 7 342 8 9 314 9 7 342 M 6 9 244 7 9 279 6 9 244 7 9 279 L 4 8 169 6 0 212 4 8 169 6 0 212 SL 4 0 141 5 2 184 4 0 141 5 2 184 Fan ...

Page 38: ...ction Liquid mm φ 6 4 φ 6 4 Gas mm φ12 7 φ15 9 Drain mm φ18 0 φ18 0 Drawing No 3D051814 3D051815 Model FTXS20CAVMB FTXS25CAVMB Cooling Heating Cooling Heating Rated Capacity 2 5kW Class 2 5kW Class Front Panel Color White White Air Flow Rates m min cfm H 7 7 272 7 8 275 7 7 272 7 8 275 M 5 9 208 6 5 230 5 9 208 6 5 230 L 4 2 148 5 3 187 4 2 148 5 3 187 SL 3 6 127 4 6 162 3 6 127 4 6 162 Fan Type C...

Page 39: ...Front Panel Color White White Air Flow Rates m min cfm H 14 7 519 16 1 569 16 2 572 17 4 614 M 12 4 438 13 9 491 13 6 480 15 1 533 L 10 3 364 11 5 406 11 4 403 12 7 448 SL 9 5 335 10 2 360 10 2 360 11 4 403 Fan Type Cross Flow Fan Cross Flow Fan Motor Output W 43 43 Speed Steps 5 Steps Quiet Auto 5 Steps Quiet Auto Air Direction Control Right Left Horizontal Downward Right Left Horizontal Downward...

Page 40: ...tal Downward Air Filter Removable Washable Mildew Proof Running Current Rated A 0 20 0 27 Power Consumption Rated W 45 60 Power Factor 97 8 96 6 Temperature Control Microcomputer Control Dimensions H W D mm 290 1 050 238 Packaged Dimensions H W D mm 337 1 147 366 Weight kg 12 Gross Weight kg 17 Operation Sound H M L SL dBA 46 42 37 34 46 42 37 34 Sound Power H dBA 62 62 Heat Insulation Both Liquid...

Page 41: ...5 33 31 29 External Static Pressure Pa 40 40 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Piping Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm VP20 O D φ 26 I D φ 20 VP20 O D φ 26 I D φ 20 Drawing No 3D048945C 3D048946C Model FDXS50CVMB FDXS60CVMB Cooling Heating Cooling Heating Rated Capacity 5 0kW Class 6 0kW Class Front Panel Color Air Flow Rates m min cfm ...

Page 42: ...co Fan Sirocco Fan Motor Output W 62 62 Speed Steps 5 Steps Quiet Auto 5 Steps Quiet Auto Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 48 0 48 0 48 0 48 Power Consumption Rated W 71 71 71 71 Power Factor 64 3 64 3 64 3 64 3 Temperature Control Microcomputer Control Microcomputer Control Dimensions H W D mm 200 700 620 200 700 620 Packaged Dim...

Page 43: ...ping Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ18 0 φ18 0 Drawing No 3D050866 3D050868 Model FLXS50BAVMB FLXS60BAVMB Cooling Heating Cooling Heating Rated Capacity 5 0kW Class 6 0kW Class Front Panel Color Almond White Almond White Air Flow Rates m min cfm H 11 4 402 12 1 427 12 0 424 12 8 452 M 10 0 353 9 8 346 10 7 378 10 6 374 L 8 5 300 7 5 265 9 3 328 8 4 297 SL 7 5 265 6 8...

Page 44: ...18 Operation Sound H M L SL dBA 38 32 26 23 38 32 26 23 39 33 27 24 39 33 27 24 Sound Power H dBA 54 54 55 55 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Piping Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ 20 0 φ 20 0 Drawing No 3D056274 3D056275 Model FVXS50FV1B Cooling Heating Rated Capacity 5 0kW Class Front Panel Color White Air Flow Rates m min cfm H ...

Page 45: ...ard Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Removable Washable Mildew Proof Temperature Control Microcomputer Control Microcomputer Control Microcomputer Control Dimensions H W D mm 195 960 680 195 960 680 195 1 160 680 Packaged Dimensions H W D mm 279 1 046 818 279 1 046 818 279 1 246 818 Weight kg 24 25 27 Gross Weight kg 31 32 35 Operation Sound H L dBA 37 32 ...

Page 46: ...4 L 0 03 Power Consumption W H 70 M 58 L 36 H 55 M 48 L 10 Starting Current A 6 2 Dimensions H W D mm 735 936 300 Packaged Dimensions H W D mm 797 992 390 Weight kg 58 Gross Weight kg 63 Operation Sound dBA 48 49 Sound Power dBA 61 Piping Connection Liquid mm φ 6 4 4 Gas mm φ9 5 2 φ12 7 2 Drain mm φ18 0 Heat Insulation Both Liquid and Gas Pipes No of Wiring Connection 3 for Power Supply 4 for Inte...

Page 47: ...Specifications SiBE12 713 36 Specifications ...

Page 48: ...Printed Circuit Board Connector Wiring Diagram 1 Printed Circuit Board Connector Wiring Diagram 38 1 1 Wall Mounted Type 38 1 2 Duct Connected Type 47 1 3 Floor Ceiling Suspended Dual Type 49 1 4 Floor Standing Type 52 1 5 Ceiling Suspended Type 54 1 6 Outdoor Units 56 ...

Page 49: ...control HA 4 S26 Connector for display PCB 5 S28 Connector for signal receiver PCB 6 S32 Connector for heat exchanger thermistor 7 S35 Connector for INTELLIGENT EYE sensor PCB 1 S29 Connector for control PCB 1 S27 Connector for control PCB 1 S36 Connector for control PCB 1 V1 Varistor 2 JA Address setting jumper JB Fan speed setting when compressor is OFF on thermostat JC Power failure recovery fu...

Page 50: ...inted Circuit Board Connector Wiring Diagram 39 PCB Detail PCB 1 Control PCB PCB 4 INTELLIGENT EYE sensor PCB V1 S1 FU1 S6 S26 S28 S32 JC JB JA LED A S35 S21 R4288 PCB 2 Signal Receiver PCB PCB 3 Display PCB S29 R5183 RTH1 SW1 S27 LED3 LED2 LED1 R4290 S36 R4291 ...

Page 51: ...lized control to 5 rooms 5 S26 Connector for signal receiver PCB 6 S27 Connector for control PCB 7 S32 Connector for heat exchanger thermistor 8 S35 Connector for INTELLIGENT EYE Sensor PCB 1 S36 Connector for control PCB 1 V1 Varistor 2 JA Address setting jumper JB Fan speed setting when compressor is OFF on thermostat JC Power failure recovery function Refer to page 321 for more detail 3 SW7 For...

Page 52: ...ector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 41 PCB JP21 JB JA JC 5V GND 12V R2413 SW7 PCB 1 Control S1 5V Check S27 S7 S6 S26 S32 JA S35 S21 V1 JB JC GND 12V Check PCB 2 Signal reciever PCB 3 Intelligent eye sensor ...

Page 53: ...ircuit Board Connector Wiring Diagram PCB Detail PCB 1 Control PCB PCB 2 Signal Receiver PCB PCB 3 INTELLIGENT EYE sensor PCB Control PCB V1 Fu1 S1 SW7 LED1 LED2 LED3 RTH1 S27 S7 12V Check S6 GND S26 S32 JC JB JA LED A S35 S21 Signal Receiver PCB R4987 5V Check S36 R4988 ...

Page 54: ...A 5 S26 Connector for buzzer PCB 6 S28 Connector for signal receiver PCB 7 S32 Connector for heat exchanger thermistor 8 S35 Connector for Intelligent Eye sensor PCB 1 S29 Connector for control PCB 1 S27 Connector for control PCB 2 S38 Connector for display PCB 1 S37 Connector for buzzer PCB 1 S36 Connector for control PCB 1 V1 Varistor 2 JA Address setting jumper JB Fan speed setting when compres...

Page 55: ...Connector Wiring Diagram PCB Detail PCB 1 Control PCB indoor unit PCB 2 Signal Receiver PCB PCB 3 Buzzer PCB PCB 4 Display PCB PCB 5 Intelligent Eye sensor PCB S1 V1 FU1 S6 S8 S26 R2860 S28 S32 JC JB JA LED A S21 S35 SW1 S29 R2861 R2862 RTH1 S38 S27 LED1 LED2 LED3 S37 R2863 S36 R2864 ...

Page 56: ... and control PCB 5 S41 Connector for swing motor 6 S46 Connector for signal receiver PCB 7 S49 Connector for reduction motor front panel mechanism 8 S51 Connector for front panel limit switch 1 S47 Connector for control PCB 1 S36 Connector for control PCB 1 V1 Varistor 2 JA Address setting jumper JB Fan speed setting when compressor is OFF on thermostat JC Power failure recovery function auto rest...

Page 57: ...713 46 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB 1 Control PCB indoor unit PCB 2 Signal Receiver PCB PCB 3 INTELLIGENT EYE sensor PCB S46 V1 S21 R4991 FU1 S1 S41 S51 JB JA JC S49 S36 S32 LED A LED4 RTH1 LED3 R4992 LED2 SW1 S47 S36 R4988 ...

Page 58: ... to 5 rooms 4 S26 Connector for display PCB 5 S32 Connector for heat exchanger thermistor 1 S1 Connector for control PCB 1 V1 Varistor 2 JA Address setting jumper JB Fan speed setting when compressor is OFF on thermostat JC Power failure recovery function Refer to page 321 for more detail 3 LED A LED for service monitor green 4 FU1 Fuse 3 15A 1 SW1 S1W Forced operation ON OFF switch 2 LED1 LED for...

Page 59: ...Printed Circuit Board Connector Wiring Diagram SiBE12 713 48 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB 2 Display PCB C1 C3 C2 WLU PbF 2P084375 ...

Page 60: ...ctor for display PCB 5 S26 Connector for signal receiver PCB 6 S32 Connector for heat exchanger thermistor 7 S37 Connector for power supply PCB 1 S36 Connector for control PCB 1 S25 Connector for control PCB 1 S27 Connector for control PCB 2 S31 Connector for room temperature thermistor 1 JA Address setting jumper JB Fan speed setting when compressor is OFF on thermostat JC Power failure recovery ...

Page 61: ...Printed Circuit Board Connector Wiring Diagram SiBE12 713 50 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB 1 Control PCB PCB Detail PCB 2 Power Supply PCB ...

Page 62: ...d Circuit Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 51 PCB 3 Display PCB PCB 4 Signal Receiver PCB SW1 S27 PbF PHOTO 2P084377 1 SW1 I RTH WLU 3 C1 C2 C3 EX511 REV 12 S27 R6057 S31 RTH ...

Page 63: ...r service PCB 4 S41 Connector for lower air outlet motor 5 S42 Connector for swing motor 6 S46 Connector for display PCB 7 S48 Connector for sensor PCB 1 S27 Connector for control PCB 1 S47 Connector for control PCB 1 V1 Varistor 2 JA Address setting jumper JB Fan speed setting when compressor is OFF on thermostat JC Power failure recovery function Refer to page 321 for detail 3 FU1 Fuse 3 15A 4 L...

Page 64: ...gram Printed Circuit Board Connector Wiring Diagram 53 PCB Detail PCB 1 Sensor PCB PCB 2 Control PCB PCB 3 Service PCB PCB 3 Display PCB S49 3P191450 S1 LED A S21 S41 S42 S26 S46 S48 JC JA JB V1 FU1 2P191446 S27 SW4 SW2 3P191448 S47 SW1 LED2 LED1 3P191447 ...

Page 65: ... 1 6 X19A Connector for Room Temperature Thermistor 7 X20A X26A Connector for Fan Motor 8 X24A Connector for Wireless Remote Controller Receiver Unit 9 X25A Connector for Drain Pump Motor Optional Accessory 10 X27A Connector for Terminal Strip for Inter Unit Wiring 11 X29A Connector for Swing Motor 12 X33A Connector for Wring Adaptor PCB Optional Accessory 13 X35A Connector for Group Control Adapt...

Page 66: ...onnector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 55 PCB Detail Capacity setting adaptor X18A X40A X15A X19A X17A X14A X61A X33A X27A X20A X35A X60A X5A X24A X26A X29A X25A HAP Service monitor LED 2P095007 EC0606 A ...

Page 67: ...sion valve coil D port yellow 7 S40 Connector for overload protector 8 S51 S101 Connector for service monitor PCB 9 S70 Connector for fan motor 10 S80 Connector for four way valve coil 11 S90 Connector for thermistors outdoor air heat exchanger and discharge pipe 12 S92 Connector for gas pipe thermistor 13 S93 Connector for liquid pipe thermistor 14 AC1 AC2 Connector for terminal strip power suppl...

Page 68: ...Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 57 PCB Detail PCB 1 Main PCB V3 AC1 FU2 3 15A V100 HR1 HR2 FU3 3 15A 2P194316 S40 S20 S70 S90 S93 S92 S23 S21 S22 S10 AC2 S15 S101 V5 S80 V9 V2 FU1 30A ...

Page 69: ...Printed Circuit Board Connector Wiring Diagram SiBE12 713 58 Printed Circuit Board Connector Wiring Diagram PCB 2 Service Monitor PCB ...

Page 70: ...on 73 1 12 Inverter POWERFUL Operation 74 1 13 Other Functions 75 2 Function of Main Structural Parts 77 2 1 Main Structural Parts 77 2 2 Function of Thermistor 78 3 Control Specification 82 3 1 Mode Hierarchy 82 3 2 Frequency Control 83 3 3 Controls at Mode Changing Start up 86 3 4 Discharge Pipe Control 88 3 5 Input Current Control 88 3 6 Freeze up Protection Control 89 3 7 Heating Peak cut Cont...

Page 71: ...le explains the conversion principle Drawing of Inverter The following drawing shows a schematic view of the inverter principle Phase Description 1 The supplied AC power source is converted into the DC power source for the present 2 The DC power source is reconverted into the three phase AC power source with variable frequency When the frequency increases the rotation speed of the compressor incre...

Page 72: ... air condition with a small room temperature variation Energy saving heating and cooling Once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power Frequency Limits The following table shows the functions that define the minimum and maximum frequency Forced Cooling Heating Operation For more information refer to Forced operation mode on pa...

Page 73: ... and fan 3 D Airflow FTXG25 35E CTXG50E FTK X S50 71F Alternative repetition of vertical and horizontal swing motions enables uniform air conditioning of the entire room This function is effective for starting the air conditioner When the horizontal swing and vertical swing are both set to auto mode the airflow become 3 D airflow and the horizontal swing and vertical swing motions are alternated T...

Page 74: ...olled not to blow the air directly on the person in the room The airflow rate is controlled automatically within the following steps Cooling L tap MH tap same as AUTOMATIC Heating ML tap M tap The latest command has the priority between POWERFUL and COMFORT AIRFLOW Heating Cooling R4303 70 R4302 5 ...

Page 75: ...banned area Control Flow Timing Chart Opening the front panel fully Start Running Output of the D signal after the front panel starts moving Making the fan rotate when the flap passes over the fan banned area Opening the flap fully R3311 TDELTA Fully close OFF Start ON Front panel Flap Under running control Under running control Under operation mode control Under operation mode control The outdoor...

Page 76: ...Cooling The fan keeps rotating at the set tap Heating The fan stops Automatic Air Flow Control for Heating On heating mode the indoor fan speed will be regulated according to the indoor heat exchanger temperature and the difference between the room temperature and the required set point Automatic Air Flow Control for Cooling The following drawing explains the principle of fan speed control for coo...

Page 77: ...e room temperature at startup and the temperature set by the microcomputer is divided into two zones Then the unit operates in the dry mode with an appropriate capacity for each zone to maintain the temperature and humidity at a comfortable level Room temperature at startup Set temperature X Thermostat OFF point Y Thermostat ON point Z 24ºC or more Room temperature at startup X 2 5ºC X 0 5ºC or Y ...

Page 78: ... C 2 Main unit setting temperature equals remote controller setting temperature 3 Operation ON OFF point and mode switching point are as follows Heating Cooling switching point Room temperature Main unit setting temperature 2 5 deg Cooling Heating switching point Room temperature Main unit setting temperature 2 5 deg Thermostat ON OFF point is the same as the ON OFF point of cooling or heating ope...

Page 79: ... A The monitoring time has passed while the temperature difference is in the zone B Cooling Dry 10 minutes Heating 10 seconds Cooling Dry Wall Mounted Type Floor standing Type Floor Ceiling suspended Type Duct Connected Type Heating Wall Mounted Type Floor standing Type Floor Ceiling suspended Type Duct Connected Type B A OFF ON C Cooling 0 5 C Dry 0 5 C Room temperature setpoint Cooling 2 0 C Dry...

Page 80: ...ling the room at the set temperature for the first one hour then automatically raises the temperature setting slightly in the case of cooling or lowers it slightly in the case of heating for economical operations This prevents excessive heating in winter and excessive cooling in summer to ensure comfortable sleeping conditions and also conserves electricity Cooling Operation In case of FTXG25 35E ...

Page 81: ...less remote controller by pushing the ECONO button When this function is ON the maximum capacity is also down Approx 20 This function can only be set when the unit is running Pressing the operation stop button causes the settings to be canceled This function and POWERFUL operation cannot be used at the same time The latest command has the priority Details ECONO mode can be activated while the unit...

Page 82: ...g When a microcomputer doesn t have a signal from the sensor in 20 minutes it judges that nobody is in the room and operates the unit in temperature shifted 2 C from the set temperature Cooling 2 C higher Dry 1 C higher and Auto according to the operation mode at that time 1 In case of Fan mode the fan speed reduces by 50 rpm If the sensor detects the outputs 10 times sec or more it judges humans ...

Page 83: ...tes so as to prevent this phenomena After this 40 minutes the prohibition of the thermostat off is cancelled and it can realize the conditions to conduct thermostat off depending on the room temperature In or after this 40 minutes if the sensor detects human motion detection signal it let the set temperature and the fan speed return to the original set point keeping a normal operation Others The d...

Page 84: ...le the operation is stopped the function becomes effective when the operation is started If this button is pressed in powerful operation the powerful operation is reset and this function becomes effective The HOME LEAVE button is ineffective in dry mode and fan mode 2 Details of Function A mark representing HOME LEAVE is indicated on the liquid crystal display of the remote controller The indoor u...

Page 85: ... X S20 50D Ex Powerful operation in cooling mode Refer to Fan Speed control on page 65 for detail Operation mode Fan speed Target set temperature COOL H tap 50 rpm 18 C DRY Dry rotating speed 50 rpm Normally targeted temperature in dry operation Approx 2 C HEAT H tap 50 rpm 30 C FAN H tap 50 rpm AUTO Same as cooling heating in Powerful operation The target is kept unchanged R4560 Target temp Fan 5...

Page 86: ...en the remote controller is missing or if its battery has run out Every press of the button switches from ON to OFF or from OFF to ON In case of FTK X S20 50D Push this button once to start operation Push once again to stop it This button is useful when the remote controller is missing The operation mode refers to the following table In the case of multi system operation there are times when the u...

Page 87: ...ning the two filters in this way increases the active surface area of the new filter This larger surface area allows the filter to effectively trap microscopic particles decompose odours and deactivate bacteria and viruses even for the high volume of air required to air condition large living rooms The filter can be used for approximately 3 years if periodic maintenance is performed 1 13 8 Mold Pr...

Page 88: ...Main Structural Parts 2 1 Main Structural Parts Heat Pump Model Cooling Only Model Note Expansion Valve In Case of 2 port model EVA B 3 port model EVA C 4 port model EVA D Four way valve Compressor EVB EVC EVD EVA Expansion valve R5066 Compressor EVB EVC EVD EVA Expansion valve R4596 ...

Page 89: ...arge pipe temperature becomes lower than the outdoor heat exchanger temperature the discharge pipe thermistor is judged as disconnected B Discharge Pipe Thermistor 1 The discharge pipe thermistor is used for controlling temperature of the discharge pipe If the temperature of discharge pipe used in place of the inner temperature of the compressor rises abnormally the operating frequency drops or th...

Page 90: ...omes lower than the indoor heat exchanger temperature the discharge pipe thermistor is judged as disconnected The indoor heat exchanger thermistors are also used for preventing abnormal high pressure 5 The indoor heat exchanger thermistors are used for detecting incorrect wiring During checking incorrect wiring refrigerant is passed in order from the port A to detect a heat exchanger temperature a...

Page 91: ... pipe temperature becomes lower than the outdoor heat exchanger temperature the discharge pipe thermistor is judged as disconnected B Discharge Pipe Thermistor 1 The discharge pipe thermistor is used for controlling temperature of the discharge pipe If the temperature of discharge pipe used in place of the inner temperature of the compressor rises abnormally the operating frequency drops or the op...

Page 92: ...eezing During the cooling operation if the temperature drops abnormally the operating frequency becomes lower then the operation halts 3 The indoor heat exchanger thermistors are used for anti icing control During the cooling operation if the heat exchanger temperature in the room where operation is halted becomes 1 C or if the room temperature heat exchanger temperature in the room where operatio...

Page 93: ...peration Determine Operating Mode Judge the operating mode command set by each room in accordance with the instructing procedure and determine the operating mode of the system The following procedure will be taken as the modes conflict with each other 1 The system will follow the mode determined first First push first set 2 For the rooms set with different mode select stand by mode Operation lamp ...

Page 94: ...Set a minimum value as an upper limit frequency among the frequency upper limits of the following functions Compressor protection input current discharge pipes Low Hz high pressure peak cutting freeze up protection defrost 3 Determine lower limit frequency Set a maximum value as an lower limit frequency among the frequency lower limits of the following functions Four way valve operating compensati...

Page 95: ...room the room in which the thermostat is set to ON Q value Indoor unit output determined from indoor unit volume air flow rate and other factors PI Control Determine Frequency Up Down by D Signal 1 P control Calculate a total of the D value in each sampling time 20 seconds and adjust the frequency according to its difference from the frequency previously calculated 2 I control If the operating fre...

Page 96: ...ontrol The frequency upper and lower limits are set depending on the total of S values of a room When low noise commands come from the indoor unit more than one room or when outdoor unit low noise or quiet commands come from all the rooms the upper limit frequency must be lowered than the usual setting ...

Page 97: ... OFF when the heating is stopped the delay switch of the four way valve must be carried out after the operation stopped Detail The OFF delay of four way valve Energize the coil for 150 sec after unit operation is stopped 3 3 3 Four Way Valve Operation Compensation Outline Heat Pump Only At the beginning of the operation as the four way valve is switched acquire the differential pressure required f...

Page 98: ...N the upper limit of frequency must be set as follows The function must not be used when defrosting only for heat pump model Note When the compressor doesn t run for long time in the condition that the discharge pipe temperature is 10 C or less the time between FCG2 and FCG3 will be longer then 470 sec FCG 3 FCG 2 FCG 1 2YC45 80 65 55 ...

Page 99: ...he stop zone the compressor operation stops If a drooping current is continues for 1 0 second after rushing on the drooping zone the frequency will be 2 Hz drooping Repeating the above drooping continues until the current rushes on the drooping zone without change In the unchanged zone the frequency limit will remain In the return reset zone the frequency limit will be cancelled Limitation of curr...

Page 100: ...orm the indoor unit allow the operating frequency limitation and prevent abnormal high pressure The signal from the indoor unit must be divided as follows Detail Conditions for Start Controlling Judge the controlling start with the indoor heat exchanger temperature after 2 min from operation start and after A sec from changing number of operation room Control in Each Zone The maximum value of heat...

Page 101: ... C On heating the fan tap changes L M when the outdoor air temperature is 15 C with min Hz and M H at 4 C Tap Control in Indoor Unit Silent Operation 1 When Cooling Operation When the outdoor air temperature is less than 37 C the fan tap must be lower 2 When Heating Operation When the outdoor air temperature is more than 4 C the fan tap must be lower only for heat pump model 3 9 Liquid Compression...

Page 102: ...econds the defrost control starts A 19 256 B 45 64 C A outdoor heat exchanger temperature B output frequency C outdoor air temperature Conditions for Canceling Defrost The target heat exchanger temperature as the canceling condition is selected in the range of 4 C Te 12 C according to the air temperature as the following formula The target heat exchanger temperature 45 64 ambient temperature 14 Th...

Page 103: ...ribution control in heating Open Control 1 Electronic expansion valve control when starting operation 2 Control when frequency changed 3 Control for defrosting only for heat pump model 4 Oil recover control 5 Control when a discharge pipe temperature is abnormally high 6 Control when the discharge pipe thermistor is disconnected 7 Control for indoor unit freeze up protection Feedback Control 1 Dis...

Page 104: ...re equalizing control Gas pipe isothermal control SC control only for heat pump model Control when frequency changed Control for abnormally high discharge pipe temperature Liquid pipe temperature control for stopped rooms Dew prevention control for indoor rotor Oil recovery control Indoor freeze up protection control Liquid pipe temperature control When power is turned ON Cooling 1 room operation ...

Page 105: ...becomes identical When the gas pipe temperature the average gas pipe temperature open the electronic expansion valve in that room When the gas pipe temperature the average gas pipe temperature close the electronic expansion valve in that room The temperatures are monitored every 40 seconds 3 11 5 SC Control Outline Heat Pump Only Detect the temperature of liquid pipe and heat exchanger of the room...

Page 106: ...tem should be down 3 11 8 Control when frequency is changed When the target pipe temperature control is active if the target frequency is changed for a specified value in a certain time period cancel the target discharge pipe temperature control and change the opening of the target electronic expansion valve according to the shift 3 11 9 High Temperature of the Discharge Pipe When the compressor i...

Page 107: ...nsufficient Gas Control Outline If a power consumption is below the specified value in which the frequency is higher than the specified frequency it must be regarded as gas insufficient In addition to such conventional function if the discharge temperature is higher than the target discharge pipe temperature and more than the specified temperature and the electronic expansion valve is fully open 4...

Page 108: ...ng conditions 1 The indoor unit is not abnormal but the indoor unit which is not in the freezing prohibiting zone is present in more than 1 room 1 The indoor unit is not abnormal The indoor unit which is not in the peak cut prohibited zone is present in more than 1 room 2 The outdoor unit is not abnormal and not in the 3 minute stand by mode 3 The operating mode of the outdoor unit is the stop mod...

Page 109: ... indoor unit is in trouble if a trouble occurs during the wiring error checking Emergency stop Any of the LED indicators 1 4 stays on Note 1 After self correction completed LED 3 and LED 4 are not displayed for 2 rooms LED 4 is not displayed for 3 rooms 2 It takes about 10 15 minutes after pressing the wiring error check switch to complete the checking Wrong wiring between the upper and lower unit...

Page 110: ...rced operation is over LED1 Room A wiring LED2 Room B wiring 1st flashing LED Port A piping 2nd flashing LED Port B piping The first stay on LED means the room that is connected with Port A The next stay on LED means the one connected with Port B Example Let s suppose the LED indicators are flashing as follows The above means that Port A is connected with Port B and Port B with Room A or self corr...

Page 111: ...art conditions Priority room setting is made AND Powerful signal from the priority room unit is received Note The operation mode of the priority room unit has precedence Cancellation of control The control function is canceled when the Powerful operation mode is switched off or 20 minutes elapse after Powerful Operation started 3 15 2 POWERFUL Operation Mode Compressor operating frequency is incre...

Page 112: ...peration is also possible in COOL HEAT mode 3 15 4 ECONO mode proof Setting Outline When installing in hotels you can make ECONO mode ineffective on the outdoor unit Operation The ECONO mode can be switched over between effective and ineffective by pressing the forced operation switch SW1 and wiring error check switch SW3 at the same time and holding them for 5 seconds while the compressor is stop...

Page 113: ...Control Specification SiBE12 713 102 Function and Control ...

Page 114: ...3 Operation Manual 103 Part 5 Operation Manual 1 System Configuration 104 1 1 Operation Instructions 104 2 Instruction 105 2 1 FTK X S FTXG CTXG FDK X S FLK X S Series 105 2 2 FVXS Series 181 2 3 FHQ Series 212 ...

Page 115: ...to know a clever method of using it In order to meet this expectation of the users giving sufficient explanations taking enough time can be said to reduce about 80 of the requests for servicing However good the installation work is and however good the functions are the customer may blame either the room air conditioner or its installation work because of improper handling The installation work an...

Page 116: ...on 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 Pre...

Page 117: ...erant check the content of the repairs with our service staff Do not attempt to install the air conditioner by your self Incorrect work will result in water leakage electric shocks or fire For installation consult the dealer or a qualified technician In order to avoid electric shock fire or injury if you detect any abnormally such as smell of fire stop the operation and turn off the breaker And ca...

Page 118: ...es and other debris accumulate around the unit Leaves are a hotbed for small animals which can enter the unit Once in the unit such animals can cause malfunc tions smoke or fire when making contact with electrical parts Do not operate the air conditioner with wet hands Do not wash the indoor unit with excessive water only use a slightly wet cloth Do not place things such as vessels containing wate...

Page 119: ...Instruction SiBE12 713 108 Operation Manual 2 1 3 Names of Parts FTK X S 20 25 35 50 D Names of parts Indoor Unit ON OFF 16 14 13 15 12 1 3 4 5 7 9 10 11 8 6 2 ...

Page 120: ...nit ON OFF switch Push this switch once to start operation Push once again to stop it The operation mode refers to the following table This switch is useful when the remote controller is missing 13 Operation lamp green 14 TIMER lamp yellow 15 INTELLIGENT EYE lamp green 16 Signal receiver It receives signals from the remote controller When the unit receives a signal you will hear a short beep Opera...

Page 121: ...E selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 QUIET button OUTDOOR UNIT QUIET operation 9 FAN setting button It selects the air flow rate setting 10 SWING button Ajusting the Air Flow Direction 11 COMFORT AIRFLOW button COMFORT AIRFLOW operation 12 SENSOR button INTELLIGENT EYE operation 13 ON TIMER button 14 OFF TIMER button 15 TIMER Setting button It changes the time s...

Page 122: ...SiBE12 713 Instruction Operation Manual 111 FTK X S 20 25 35 C Names of parts Indoor Unit ...

Page 123: ...e to start operation Push once again to stop it The operation mode refers to the following table This switch is useful when the remote controller is missing 13 Operation lamp green 14 TIMER lamp yellow 15 HOME LEAVE lamp red 16 Signal receiver It receives signals from the remote controller When the unit receives a signal you will hear a short beep Operation start beep beep Settings changed beep Op...

Page 124: ...6 ON OFF button Press this button once to start operation Press once again to stop it 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 QUIET button OUTDOOR UNIT QUIET operation 9 FAN setting button It selects the air flow rate setting 10 SWING button 11 SENSOR button INTELLIGENT EYE operation 12 ON TIMER button 13 OFF TIMER button 14 TIMER Setting button It changes the...

Page 125: ...Instruction SiBE12 713 114 Operation Manual FTK X S 50 60 71 F Names of parts Indoor Unit 1 2 4 3 10 11 9 7 8 15 12 13 14 16 6 5 ...

Page 126: ...p when you use HOME LEAVE Operation 15 Indoor Unit ON OFF switch Push this switch once to start operation Push once again to stop it The operation mode refer to the following table This switch is useful when the remote controller is missing 16 Signal receiver It receives signals from the remote controller When the unit receives a signal you will hear a short beep Operation start beep beep Settings...

Page 127: ...start operation Press once again to stop it 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 QUIET button OUTDOOR UNIT QUIET operation 9 FAN setting button It selects the air flow rate setting 10 SENSOR button INTELLIGENT EYE operation 11 SWING button Flap Horizontal blade 12 SWING button Louver Vertical blades 13 ON TIMER button 14 OFF TIMER button 15 TIMER Setting bu...

Page 128: ...SiBE12 713 Instruction Operation Manual 117 FTXG 25 35 E CTXG 50 E Names of parts Indoor Unit 15 14 18 12 13 17 1 3 4 6 2 11 16 5 7 8 9 10 With the panel closed ...

Page 129: ... switch is useful when the remote controller is missing 13 Room temperature sensor It senses the air temperature around the unit 14 Operation lamp green 15 TIMER lamp yellow 16 INTELLIGENT EYE lamp green 17 INTELLIGENT EYE sensor It detects the movements of people and auto matically switches between normal operation and energy saving operation 18 Signal receiver It receives signals from the remote...

Page 130: ...t changes the temperature setting 6 ON OFF button Press this button once to start operation Press once again to stop it 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 SILENT button OUTDOOR UNIT SILENT operation 9 FAN setting button It selects the air flow rate setting 10 SWING button Flap Horizontal blade 11 SWING button Louvers Vertical blades 12 COMFORT AIRFLOW mod...

Page 131: ...Instruction SiBE12 713 120 Operation Manual FDK X S 25 35 50 60 C FDK X S 25 35 E Names of parts Indoor Unit 3 6 8 9 10 7 1 4 5 2 ...

Page 132: ...tion lamp green 8 TIMER lamp yellow 9 HOME LEAVE lamp red LIghts up when you use HOME LEAVE operation 10 Indoor Unit ON OFF switch Push this switch once to start operation Push once again to stop it This switch is useful when the remote controller is missing The operation mode refers to the following table Outdoor Unit 11 Air inlet Back and side 12 Refrigerant piping and inter unit cable 13 Drain ...

Page 133: ...changes the temperature setting 6 ON OFF button Press this button once to start operation Press once again to stop it 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 QUIET button OUTDOOR UNIT QUIET operation 9 FAN setting button It selects the air flow rate setting 10 ON TIMER button 11 OFF TIMER button 12 TIMER Setting button It changes the time setting 13 TIMER CANC...

Page 134: ...iling or to a wall The descriptions contained in this man ual show the case when installation is being carried out to the ceiling The methods of operation used are the same when installing to a wall Opening the front panel How to open the front panel CAUTION Before opening the front panel be sure to stop the operation and turn the breaker OFF ...

Page 135: ... once to start operation Push once again to stop it The operation mode refers to the following table Push the switch using an object with a sharp tip such as a pen This switch is useful when the remote controller is missing 14 Signal receiver It receives signals from the remote controller When the unit receives a signal you will hear a short beep Operation start beep beep Settings changed beep Ope...

Page 136: ...F button Press this button once to start operation Press once again to stop it 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 QUIET button OUTDOOR UNIT QUIET operation 9 FAN setting button It selects the air flow rate setting 10 SWING button 11 ON TIMER button 12 OFF TIMER button 13 TIMER Setting button It changes the time setting 14 TIMER CANCEL button It cancels th...

Page 137: ...replace the two old batteries together When the system is not used for a long time take the batteries out We recommend replacing once a year although if the remote controller display begins to fade or if reception deteriorates please replace with new alkali batteries Using manganese batteries reduces the lifespan The attached batteries are provided for the initial use of the system The usable peri...

Page 138: ... unit 2 Fix the holder to a wall a pillar or similar location with the screws procured locally 3 Place the remote controller in the remote controller holder ATTENTION About remote controller Never expose the remote controller to direct sunlight Dust on the signal transmitter or receiver will reduce the sensitivity Wipe off dust with soft cloth Signal communication may be disabled if an electronic ...

Page 139: ...ditioner for a long period for example in spring or autumn turn the breaker OFF Use the air conditioner in the following conditions Operation outside this humidity or temperature range may cause a safety device to disable the system TIMER ON CANCEL OFF 1 3 2 Recommended temperature setting For cooling 26 C 28 C For heating 20 C 24 C Mode Operating conditions If operation is continued out of this r...

Page 140: ...ct a operation mode Each pressing of the button advances the mode setting in sequence AUTO DRY COOL HEAT FAN 2 Press ON OFF button The OPERATION lamp lights up To stop operation 3 Press ON OFF button again Then OPERATION lamp goes off To change the temperature setting 4 Press TEMPERATURE adjustment button DRY or FAN mode AUTO or COOL or HEAT mode The temperature setting is not variable Press to ra...

Page 141: ...ets warmer In heating operation frost may occur on the outdoor unit and lower the heating capacity In that case the system switches into defrosting operation to take away the frost During defrosting operation hot air does not flow out of indoor unit Note on COOL operation This air conditioner cools the room by blowing the hot air in the room outside so if the outside temperature is high performanc...

Page 142: ... the desired position press SWING button once more The flap will stop moving disappears from the LCD To adjust the vertical blades louvers Hold the knob and move the louvers You will find a knob on the left side and the right side blades When the unit is installed in the corner of a room the direction of the louvers should be facing away from the wall If they face the wall the wall will block off ...

Page 143: ... on flaps and louvers angles POWERFUL operation and COMFORT AIRFLOW operation cannot be used at the same time Priority is given to POWERFUL operation When SWING button is selected the flaps swinging range depends on the operation mode See the figure ATTENTION Always use a remote controller to adjust the flaps angle If you attempt to move it forcibly with hand when it is swinging the mechanism may ...

Page 144: ...adjust the air flow direction to increase your comfort To adjust the horizontal blades flaps 1 Press SWING button is displayed on the LCD and the flaps will begin to swing 2 When the flaps have reached the desired position press SWING button once more The flap will stop moving disappears from the LCD 1 2 ...

Page 145: ...tes on flaps and louvers angles When SWING button is selected the flaps swinging range depends on the operation mode See the figure ATTENTION Always use a remote controller to adjust the flaps angle If you attempt to move it forcibly with hand when it is swinging the mechanism may be broken Be careful when adjusting the louvers Inside the air outlet a fan is rotating at a high speed ...

Page 146: ...yed on the LCD and the flaps will begin to swing 2 When the flap has reached the desired position press SWING button once more The flap will stop moving disappears from the LCD To adjust the vertical blades louvers 3 Press SWING button is displayed on the LCD 4 When the louvers have reached the desired position press the SWING button once more The louvers will stop moving disappears from the LCD T...

Page 147: ...nging range depends on the operation mode See the figure Three Dimensional 3 D Airflow Using three dimensional airflow circulates cold air which tends to collected at the bottom of the room and hot air which tends to collect near the ceiling throughout the room preventing areas of cold and hot developing ATTENTION Always use a remote controller to adjust the flaps angle If you attempt to move it f...

Page 148: ...SWING button once more The flap will stop moving disappears from the LCD To adjust the vertical blades louvers 3 Press SWING button is displayed on the LCD 4 When the louvers have reached the desired position press the SWING button once more The louvers will stop moving To 3 D Airflow 1 3 Press the SWING button and the SWING button the and display will light up and the flap and louvers will move i...

Page 149: ... When SWING button is selected the flap swinging range depends on the operation mode See the figure Three Dimensional 3 D Airflow Using three dimensional airflow circulates cold air which tends to collected at the bottom of the room and hot air which tends to collect near the ceiling throughout the room preventing areas of cold and hot developing Comfort Airflow The air flow is set automatically T...

Page 150: ...on to increase your comfort To adjust the horizontal blade flap 1 Press SWING button is displayed on the LCD and the flaps will begin to swing 2 When the flaps have reached the desired position press SWING button once more The flap will stop moving disappears from the LCD C TEMP ON OFF POWERFUL HOME LEAVE MODE FAN SWING O N QUIET 1 2 ...

Page 151: ...ected you should set the flap at a near horizontal angle in COOL or DRY mode to obtain the best performance In COOL or DRY mode if the flap is fixed at a downward position the flap automatically moves in about 60 minutes to prevent condensation on it ATTENTION Always use a remote controller to adjust the flap angle If you attempt to move it forcibly with hand when it is swinging the mechanism may ...

Page 152: ...NOTE Notes on POWERFUL operation POWERFUL Operation cannot be used together with QUIET Operation Priority is given to the function of whichever button is pressed last POWERFUL Operation can only be set when the unit is running Pressing the operation stop button causes the settings to be canceled and the disappears from the LCD In COOL and HEAT mode To maximize the cooling heating effect the capaci...

Page 153: ...on OUTDOOR UNIT QUIET operation This function is available in COOL HEAT and AUTO modes This is not available in FAN and DRY mode POWERFUL operation and OUTDOOR UNIT QUIET operation cannot be used at the same time Priority is given to the function of whichever button is pressed last If operation is stopped using the remote controller or the main unit ON OFF switch when using OUTDOOR UNIT QUIET oper...

Page 154: ...ration stop button causes the settings to be canceled and the disappears from the LCD ECONO operation is a function which enables efficient operation by limiting the power consumption of the outdoor unit operating frequency ECONO operation functions in AUTO COOL DRY and HEAT modes POWERFUL operation and ECONO operation cannot be used at the same time Priority is given to the function of whichever ...

Page 155: ...w rate for HOME LEAVE operation When using HOME LEAVE operation for the first time please set the temperature and air flow rate for HOME LEAVE operation Record your preferred temperature and air flow rate 1 Press HOME LEAVE button Make sure is displayed in the remote controller display 2 Adjust the set temperature with or as you like 3 Adjust the air flow rate with FAN setting button as you like H...

Page 156: ...will be welcomed by a comfortably air conditioned room Push the HOME LEAVE Operation button again and the air conditioner will adjust capacity to the set temperature for normal operation Set the unit to HOME LEAVE Operation before leaving the living room when going to bed The unit will maintain the temperature in the room at a comfortable level while you sleep When you enter the living room in the...

Page 157: ...ELLIGENT EYE operation 1 Press SENSOR button is displayed on the LCD To cancel the INTELLIGENT EYE operation 2 Press SENSOR button again disappears from the LCD EX TEMP ON OFF POWERFUL MODE FAN SWING QUIET SENSOR ECONO COMFORT TIMER ON CANCEL OFF 1 2 When somebody in the room Normal operation When nobody in the room 20 min after start energy saving operation Somebody back in the room Back to norma...

Page 158: ... to indoor unit location the speed of pass ersby temperature range etc The sensor also mistakenly detects pets sunlight fluttering curtains and light reflected off of mirrors as passersby INTELLIGENT EYE operation will not go on during powerful operation Night set mode will not go on during you use INTELLIGENT EYE operation Do not place large objects near the sensor Also keep heating units or humi...

Page 159: ...n movement To start INTELLIGENT EYE operation 1 Press SENSOR button is displayed on the LCD To cancel the INTELLIGENT EYE operation 2 Press SENSOR button again disappears from the LCD EX 1 2 When somebody in the room Normal operation When nobody in the room 20 min after start energy saving operation Somebody back in the room Back to normal operation ...

Page 160: ... fan operation In FAN mode only Application range is as follows Sensor may not detect moving objects further than 5m away Check the application range Sensor detection sensitivity changes according to indoor unit location the speed of pass ersby temperature range etc The sensor also mistakenly detects pets sunlight fluttering curtains and light reflected off of mirrors as passersby INTELLIGENT EYE ...

Page 161: ... To start INTELLIGENT EYE operation 1 Press SENSOR button is displayed on the LCD To cancel the INTELLIGENT EYE operation 2 Press SENSOR button again disappears from the LCD EX TIMER ON CANCEL OFF 1 2 When somebody in the room Normal operation When nobody in the room 20 min after start energy saving operation Somebody back in the room Back to normal operation ...

Page 162: ...nit location the speed of passersby temperature range etc The sensor also mistakenly detects pets sunlight fluttering curtains and light reflected off of mirrors as passersby INTELLIGENT EYE operation will not go on during powerful operation Night set mode will not go on during you use INTELLIGENT EYE operation Do not place large objects near the sensor Also keep heating units or humidifiers outsi...

Page 163: ...SENSOR button is displayed on the LCD To cancel the INTELLIGENT EYE operation 2 Press SENSOR button again disappears from the LCD EX 1 2 When somebody in the room Normal operation The INTELLIGENT EYE lamp lights up When somebody in the room 20 min after start energy saving operation The INTELLIGENT EYE lamp goes off Somebody back in the room Back to normal operation The INTELLIGENT EYE lamp lights...

Page 164: ...tivity changes according to indoor unit location the speed of passersby temperature range etc The sensor also mistakenly detects pets sunlight fluttering curtains and light reflected off of mirrors as passersby INTELLIGENT EYE operation will not go on during powerful operation Night set mode will not go on during you use INTELLIGENT EYE operation Do not place large objects near the sensor Also kee...

Page 165: ...s Holding down either button changes the setting rapidly 3 Press OFF TIMER button again The TIMER lamp lights up To cancel the OFF TIMER Operation 4 Press CANCEL button The TIMER lamp goes off NOTE When TIMER is set the present time is not displayed Once you set ON OFF TIMER the time setting is kept in the memory The memory is canceled when remote controller batteries are replaced When operating t...

Page 166: ...wn either button changes the setting rapidly 3 Press ON TIMER button again The TIMER lamp lights up To cancel ON TIMER operation 4 Press CANCEL button The TIMER lamp goes off To combine ON TIMER and OFF TIMER A sample setting for combining the two timers is shown below ATTENTION In the following cases set the timer again After a breaker has turned OFF After a power failure After replacing batterie...

Page 167: ...tion NIGHT QUIET Mode requires initial programming during installation Please consult your retailer or dealer for assistance NIGHT QUIET Mode reduces the operation noise of the outdoor unit during the night time hours to prevent annoyance to neighbors The NIGHT QUIET Mode is activated when the temperature drops 5 C or more below the highest temperature recorded that day Therefore when the temperat...

Page 168: ...oms A B C and D are all operating If the unit in Room A enters POWERFUL operation operation capacity will be concentrated in Room A In such a case the cooling heating efficiency of the units in Rooms B C and D may be slightly reduced 3 Priority when using OUTDOOR UNIT QUIET operation Example Room A is the Priority Room in the examples Just by setting the unit in Room A to QUIET operation the air c...

Page 169: ...ttach the front panel Set the 2 keys of the front panel into the slots and push them in all the way Close the front panel slowly and push the panel at the 3 points 1 on each side and 1 in the middle CAUTION Units Don t touch the metal parts of the indoor unit If you touch those parts this may cause an injury When removing or attaching the front panel use a robust and stable stool and watch your st...

Page 170: ...al detergent thinned with lukewarm water then dry them up in the shade It is recommended to clean the air filters every two weeks Titanium Apatite Photocatalytic Air Purifying Filter The Titanium Apatite Photocatalytic Air Purifying Filter can be renewed by washing it with water once every 6 months We recommend replac ing it once every 3 years Maintenance 1 Remove dust with a vacuum cleaner and wa...

Page 171: ... 1 cannot deodorize the air 2 cannot clean the air 3 results in poor heating or cooling 4 may cause odour To order Titanium Apatite Photocatalytic Air Purifying Filter contact to the service shop there you bought the air conditioner Dispose of old filters as burnable waste Check that the base stand and other fittings of the outdoor unit are not decayed or corroded Check that nothing blocks the air...

Page 172: ...Attach the front panel Set the 3 keys of the front panel into the slots and push them in all the way Close the front panel slowly and push the panel at the 3 points 1 on each side and 1 in the middle Check to see if the rotating axis in the upper center section is moving CAUTION Units Don t touch the metal parts of the indoor unit If you touch those parts this may cause an injury When removing or ...

Page 173: ...oes not come off easily wash them with neutral detergent thinned with lukewarm water then dry them up in the shade It is recommended to clean the air filters every two weeks Air purifying filter with photocatalytic deodorizing function gray The Air purifying filter with photocatalytic deodorizing function can be renewed by washing it with water once every 6 months We recommend replacing it once ev...

Page 174: ...othly out of the drain hose during COOL or DRY operation If no drain water is seen water may be leaking from the indoor unit Stop operation and consult the ser vice shop if this is the case Operation with dirty filters 1 cannot deodorize the air 2 cannot clean the air 3 results in poor heating or cooling 4 may cause odour To order air purifying filter with photocatalytic deodorizing function conta...

Page 175: ...r dry it with cloth dry it up in the shade after washing 4 Attach the front panel Align the rotation dowels on the left and right of the front panel with the slots then push them all the way in Close the front panel slowly Press the panel at both sides and the center CAUTION Units Don t touch the metal parts of the indoor unit If you touch those parts this may cause an injury When removing or atta...

Page 176: ...st does not come off easily wash them with neutral detergent thinned with lukewarm water then dry them up in the shade It is recommended to clean the air filters every two weeks Titanium Apatite Photocatalytic Air purifying Filter The Titanium Apatite Photocatalytic Air Purifying Filter can be renewed by washing it with water once every 6 months We recommend replacing it once every 3 years Mainten...

Page 177: ...lytic Air Purifying Filter contact to the service shop there you bought the air conditioner Dispose of old filters as non flammable waste Check that the base stand and other fittings of the outdoor unit are not decayed or corroded Check that nothing blocks the air inlets and the outlets of the indoor unit and the outdoor unit Check that the drain comes smoothly out of the drain hose during COOL or...

Page 178: ...ade after washing 4 Attach the front panel Place the revolving axes on either side of the front panel into the holes and slowly close Press either side of the front panel CAUTION Units Don t touch the metal parts of the indoor unit If you touch those parts this may cause an injury When removing or attaching the front panel use a robust and stable stool and watch your steps carefully When removing ...

Page 179: ...rs with water or clean them with vacuum cleaner If the dust does not come off easily wash them with neutral detergent thinned with lukewarm water then dry them up in the shade It is recommended to clean the air filters every two weeks Titanium Apatite Photocatalytic Air Purifying Filter gray The Titanium Apatite Photocatalytic Air Purifying Filter can be renewed by washing it with water once every...

Page 180: ... the service shop there you bought the air conditioner Dispose of old filters as burnable waste Check that the base stand and other fittings of the outdoor unit are not decayed or corroded Check that nothing blocks the air inlets and the outlets of the indoor unit and the outdoor unit Check that the drain comes smoothly out of the drain hose during COOL or DRY operation If no drain water is seen w...

Page 181: ...ot water to avoid filter shrinking or deformation After cleaning dry them in the shade 3 Replacing the air filter Rear suction Hook the filter behind the flap situated at the top of the unit and push the other side gently over the 3 bends Bottom suction Hook the filter behind the flap situated at the middle of the unit and push the other side gently over the 3 bends Only a qualified service person...

Page 182: ...room before you use the fan operation Do not operate the air conditioner without filters this to avoid dust accummulation inside the unit Do not remove the air filter except when cleaning Unnecessary handling may damage the filter Do not use gasoline benzene thinner polishing powder liquid insecticide It may cause discoloring or warping Do not let the indoor unit get wet It may cause an electric s...

Page 183: ...d filter shrinking or deformation After cleaning dry them in the shade 3 Replacing the air filter Rear suction Hook the filter behind the flap situated at the top of the unit and push the other side gently over the bends 2 bends for 25 35 type 3 bends for 50 60 type Bottom suction Hook the filter behind the flap situated at the middle of the unit and push the other side gently over the bends 2 ben...

Page 184: ...eration Do not operate the air conditioner without filters this to avoid dust accumulation inside the unit Do not remove the air filter except when cleaning Unnecessary handling may damage the filter Do not use gasoline benzene thinner polishing powder liquid insecticide It may cause discoloring or warping Do not let the indoor unit get wet It may cause an electric shock or a fire Operation with d...

Page 185: ...nts indicated by Operation without air filters may result in trou bles as dust will accumulate inside the indoor unit CAUTION Units Don t touch the metal parts of the indoor unit If you touch those parts this may cause an injury When removing or attaching the front panel use a robust and stable stool and watch your steps carefully When removing or attaching the front panel support the panel secure...

Page 186: ...th neutral deter gent thinned with lukewarm water then dry them up in the shade It is recommended to clean the air filters every two weeks Air Purifying Filter green Replace approximately once every 3 months 1 Detach the filter element and attach a new one Insert with the green side up It is recommended to replace the air purifying filter every three months Photocatalytic Deodorizing Filter gray M...

Page 187: ...the indoor unit Stop operation and consult the ser vice shop if this is the case Operation with dirty filters 1 cannot deodorize the air 2 cannot clean the air 3 results in poor heating or cooling 4 may cause odour The air purifying filter and Photocatalytic deodorizing filter cannot be reused even if washed In principle there is no need to replace the photocatalytic deodorizing filter Remove the ...

Page 188: ...ion In COOL or DRY mode Moisture in the air condenses into water on the cool surface of outdoor unit piping and drips Mist comes out of the indoor unit This happens when the air in the room is cooled into mist by the cold air flow during cooling operation This is because the air in the room is cooled by the heat exchanger and becomes mist during defrost operation The indoor unit gives out odour Th...

Page 189: ...the outlet of the indoor and the outdoor units Clean the air filters or take all obstacles away and turn the breaker OFF Then turn it ON again and try operating the air conditioner with the remote controller If the lamp still blinks call the service shop where you bought the air conditioner An abnormal functioning happens during operation The air conditioner may malfunction with lightning or radio...

Page 190: ...ctly you will help to prevent potential negative consequences for the environment and human health Please contact the installer or local authority for more information Batteries must be removed from the remote controller and disposed of separately in accordance with relevant local and national legislation In certain operating conditions the inside of the air conditioner may get foul after several ...

Page 191: ...FAULT C4 FAULTY HEAT EXCHANGER TEMPERATURE SENSOR C9 FAULTY SUCTION AIR TEMPERATURE SENSOR OUTDOOR UNIT EA COOLING HEATING SWITCHING ERROR E5 OL STARTED E6 FAULTY COMPRESSOR START UP E7 DC FAN MOTOR FAULT E8 OPERATION HALT DUE TO DETECTION OF INPUT OVER CURRENT F3 HIGH TEMPERATURE DISCHARGE PIPE CONTROL H6 OPERATION HALT DUE TO FAULTY POSITION DETECTION SENSOR H8 CT ABNORMALITY H9 FAULTY SUCTION A...

Page 192: ...ck the content of the repairs with our service staff Do not attempt to install the air conditioner by your self Incorrect work will result in water leakage electric shocks or fire For installation consult the dealer or a qualified technician In order to avoid electric shock fire or injury if you detect any abnormally such as smell of fire stop the operation and turn off the breaker And call your d...

Page 193: ...ebris accumulate around the unit Leaves are a hotbed for small animals which can enter the unit Once in the unit such animals can cause malfunctions smoke or fire when making contact with electrical parts Do not operate the air conditioner with wet hands Do not wash the indoor unit with excessive water only use a slightly wet cloth Do not place things such as vessels containing water or anything e...

Page 194: ...top the operation and turn the breaker OFF Do not touch the metal parts on the inside of the indoor unit as it may result in injury 1 2 6 5 2 4 7 8 3 9 12 10 11 13 14 Air outlet selection switch This setting blows air from upper outlet only This setting automatically decides a blow pattern depending on mode and conditions The unit is shipped from the factory with this setting This setting is recom...

Page 195: ...owing table This switch is useful when the remote controller is missing 12 Signal receiver It receives signals from the remote controller When the unit receives a signal you will hear a short beep Operation start beep beep Settings changed beep Operation stop beeeeep 13 Air outlet selection switch page 13 14 Room temperature sensor It senses the air temperature around the unit Outdoor Unit 15 Air ...

Page 196: ...ts the operation mode AUTO DRY COOL HEAT FAN page 10 8 QUIET button OUTDOOR UNIT QUIET operation page 15 9 ECONO button ECONO operation page 16 10 SWING button Adjusting the Air Flow Direction page 12 11 WEEKLY button WEEKLY TIMER operation page 19 12 PROGRAM button WEEKLY TIMER operation page 19 13 COPY button WEEKLY TIMER operation page 19 14 BACK button WEEKLY TIMER operation page 19 15 NEXT bu...

Page 197: ...eries of the same type and replace the two old batteries together When the system is not used for a long time take the batteries out We recommend replacing once a year although if the remote controller display begins to fade or if reception deteriorates please replace with new alkaline batteries Using manganese batteries reduces the lifespan The attached batteries are provided for the initial use ...

Page 198: ...blinks 4 Press SELECT button to set the clock to the present time Holding down or button rapidly increases or decreases the time display 5 Press CLOCK button Always point the remote controller at the indoor unit when pushing the buttons when setting the indoor unit s internal clock blinks NOTE If the indoor unit s internal clock is not set to the correct time the WEEKLY TIMER will not operate punc...

Page 199: ...s humidity or temperature range may cause a safety device to disable the system Recommended temperature setting For cooling 26 C 28 C For heating 20 C 24 C Mode Operating conditions If operation is continued out of this range COOL Outdoor temperature 2MK X S40 50 10 to 46 C 2MK X S52 10 to 46 C 3 4 5MK X S 10 to 46 C RK X S 10 to 46 C Indoor temperature 18 to 32 C Indoor humidity 80 max A safety d...

Page 200: ...t a operation mode Each pressing of the button advances the mode setting in sequence AUTO DRY COOL HEAT FAN 2 Press ON OFF button The OPERATION lamp lights up To stop operation 3 Press ON OFF button again Then OPERATION lamp goes off To change the temperature setting 4 Press TEMPERATURE adjustment button DRY or FAN mode AUTO or COOL or HEAT mode The temperature setting is not variable Press to rai...

Page 201: ...gets warmer In heating operation frost may occur on the outdoor unit and lower the heating capacity In that case the system switches into defrosting operation to take away the frost During defrosting operation hot air does not flow out of indoor unit Note on COOL operation This air conditioner cools the room by blowing the hot air in the room outside so if the outside temperature is high performan...

Page 202: ...stop moving disappears from the LCD To adjust the vertical blades louvers Hold the knob and move the louver You will find a knob on the left side and the right side blades Notes on flap and louvers angle Unless SWING is selected you should set the flap at a near horizontal angle in HEAT mode and at a upward position in COOL or DRY mode to obtain the best performance ATTENTION When adjusting the fl...

Page 203: ...AUTION Operating mode Situation Blowing pattern COOL mode When the room has become fully cool or when one hour has passed since turning on the air conditioner So that air does not come into direct contact with people air is blown upper air outlet room tem perature is equalized At start of operation or other times when the room is not fully cooled Air is blown from the upper and lower air outlets f...

Page 204: ...e LCD NOTE Notes on POWERFUL operation POWERFUL Operation cannot be used together with ECONO or QUIET Operation Priority is given to the function of whichever button is pressed last POWERFUL Operation can only be set when the unit is running Pressing the operation stop button causes the settings to be canceled and the disappears from the LCD In COOL and HEAT mode To maximize the cooling heating ef...

Page 205: ... NOTE Note on OUTDOOR UNIT QUIET operation This function is available in COOL HEAT and AUTO modes This is not available in FAN and DRY mode POWERFUL operation and OUTDOOR UNIT QUIET operation cannot be used at the same time Priority is given to the function of whichever button is pressed last If operation is stopped using the remote controller or the main unit ON OFF switch when using OUTDOOR UNIT...

Page 206: ... when the unit is running Pressing the operation stop button causes the settings to be canceled and the disappears from the LCD ECONO operation is a function which enables efficient operation by limiting the power consumption of the outdoor unit operating frequency ECONO operation functions in AUTO COOL DRY and HEAT modes POWERFUL operation and ECONO operation cannot be used at the same time Prior...

Page 207: ...y 10 minutes Holding down either button changes the setting rapidly 3 Press OFF TIMER button again The TIMER lamp lights up To cancel the OFF TIMER Operation 4 Press CANCEL button The TIMER lamp goes off NOTE When TIMER is set the present time is not displayed Once you set ON OFF TIMER the time setting is kept in the memory The memory is canceled when remote controller batteries are replaced When ...

Page 208: ... minutes Holding down either button changes the setting rapidly 3 Press ON TIMER button again The TIMER lamp lights up To cancel ON TIMER operation 4 Press CANCEL button The TIMER lamp goes off To combine ON TIMER and OFF TIMER A sample setting for combining the two timers is shown below ATTENTION In the following cases set the timer again After a breaker has turned OFF After a power failure After...

Page 209: ... to 4 settings can be made per day 2 Press the SELECT button to select the desired day of the week and reservation number Pressing the SELECT button changes the reservation number and the day of the week 3 Press NEXT button The day of the week will be set and blink 4 Press SELECT button to select the desired mode and or will flash To go to the next reservation setting select no setting 5 Press NEX...

Page 210: ...e time setting press BACK button The set temperature is only displayed when the mode setting is on 9 Press NEXT button The temperature will be set The temperature will be set and go to the next reservation setting Set the following using the same procedures 10 Press button to complete the setting Point the remote controller toward the air conditioner and press the buttons to operate The air condit...

Page 211: ...rding to the procedures Only the time and set temperature set with the weekly timer are sent with the button Set the weekly timer only after setting the operation mode the fan strength and the fan direction ahead of time Up to 4 settings per day and up to 28 settings per week can be reserved with WEEKLY TIMER If a reservation deactivated with WEEKLY button is activated once again the last reservat...

Page 212: ...ion confirmation complete Canceling all reservations 4 Hold the WEEKLY button for 5 seconds Be sure to direct the remote control toward the main unit and check for a receiving tone This operation is not effective while WEEKLY TIMER is being set All reservations will be canceled Canceling individual reservations This function can be used for canceling reservations for each day of the week It can be...

Page 213: ... Press COPY button The reservation will be copied to the selected day of the week The whole reservation of the selected day of the week will be copied The reservation can be copied to another day of the week in succession 6 Press button Exit copy mode NOTE COPY MODE The entire reservation of the source day of the week is copied in the copy mode Detailed settings can be made after the copy is compl...

Page 214: ...requires initial programming during installation Please consult your retailer or dealer for assistance NIGHT QUIET Mode reduces the operation noise of the outdoor unit during the night time hours to prevent annoyance to neighbors The NIGHT QUIET Mode is activated when the temperature drops 5 C or more below the highest temperature recorded that day Therefore when the temperature difference is less...

Page 215: ... and D are all operating If the unit in Room A enters POWERFUL operation operation capacity will be concentrated in Room A In such a case the cooling heating efficiency of the units in Rooms B C and D may be slightly reduced 3 Priority when using OUTDOOR UNIT QUIET operation Example Room A is the Priority Room in the examples Just by setting the unit in Room A to QUIET operation the air conditione...

Page 216: ...the front panel Insert the front panel into the grooves of the unit 3 places Attach the string to the right inner side of the front grille Close the panel slowly CAUTION Units Don t touch the metal parts of the indoor unit If you touch those parts this may cause an injury When removing or attaching the front panel use a robust and stable stool and watch your steps carefully When removing or attach...

Page 217: ...asily wash them with neutral detergent thinned with lukewarm water then dry them up in the shade It is recommended to clean the air filters every 2 weeks Titanium Apatite Photocatalytic Air Purifying Filter The Titanium Apatite Photocatalytic Air Purifying Filter can be renewed by washing it with water once every 6 months We recommend replacing it once every 3 years Maintenance 1 Vacuum dusts and ...

Page 218: ...c Air Purifying Filter contact to the service shop there you bought the air conditioner Dispose of the old filter as flammable waste Check that the base stand and other fittings of the outdoor unit are not decayed or corroded Check that nothing blocks the air inlets and the outlets of the indoor unit and the outdoor unit Check that the drain comes smoothly out of the drain hose during COOL or DRY ...

Page 219: ...ation In COOL or DRY mode Moisture in the air condenses into water on the cool surface of outdoor unit piping and drips Mist comes out of the indoor unit This happens when the air in the room is cooled into mist by the cold air flow during cooling operation This is because the air in the room is cooled by the heat exchanger and becomes mist during defrost operation The indoor unit gives out odour ...

Page 220: ...e air conditioner with the remote controller Attempted heating but the unit would not accept the instruction When selecting heating warning beeps are heard the main unit operating lamp green blinks for 5 seconds and the current operating status is maintained Check the specifications of the outdoor unit If the outdoor unit is cooling only model set the remote controller for a cooling only model usi...

Page 221: ...ectly you will help to prevent potential negative consequences for the environment and human health Please contact the installer or local authority for more information Batteries must be removed from the remote controller and disposed of separately in accordance with relevant local and national legislation In certain operating conditions the inside of the air conditioner may get foul after several...

Page 222: ...Y HEAT EXCHANGER TEMPERATURE SENSOR C9 FAULTY SUCTION AIR TEMPERATURE SENSOR OUTDOOR UNIT EA COOLING HEATING SWITCHING ERROR E1 CIRCUIT BOARD FAULT E5 OL STARTED E6 FAULTY COMPRESSOR START UP E7 DC FAN MOTOR FAULT E8 OVERCURRENT INPUT F3 HIGH TEMPERATURE DISCHARGE PIPE CONTROL F6 HIGH PRESSURE CONTROL IN COOLING H0 SENSOR FAULT H6 OPERATION HALT DUE TO FAULTY POSITION DETECTION SENSOR H8 DC CURREN...

Page 223: ...Instruction SiBE12 713 212 Operation Manual 2 3 FHQ Series 1 1 3 4 2 C hr H 5 12 4 2 1 3 9 11 10 21 14 16 15 17 18 22 8 6 7 20 19 g e e f a k i h b d f e c j d d k C hr hr TEST TEST NOT AVAILABLE L H ...

Page 224: ...e unit is individually operated NOTE Contact your Daikin dealer in case of changing the combination or setting of group control and two remote controllers control system Refer to figure 2 on page 1 We recommend that you read this instruction man ual carefully before use to gain full advantage of the function of the air conditioner and to avoid malfunc tion due to erroneous handling This air condit...

Page 225: ...ur dealer to move and reinstall the air conditioner Incomplete installation may result in a failure a water leakage electric shock and fire Do not use any fuse with improper capacity The use of a piece of wire and whatnot may result in a failure and fire The refrigerant in the air conditioner is safe and normally does not leak If the refrigerant leaks inside the room the contact with a fire of a b...

Page 226: ...14 to 23 3MKS50 4MKS58 75 90 3MXS52 2MXS52 4MXS68 80 DB 21 to 32 80 or below DB 10 to 46 WB 14 to 23 RMKS112 140 160 RMXS112 140 160 DB 21 to 32 80 or below DB 5 to 46 WB 14 to 23 HEATING DB Dry bulb temperature C WB Wet bulb temperature C The setting temperature range of the remote con troller is 16 C to 32 C Regarding places for installation Is the air conditioner installed at a well venti lated...

Page 227: ...TRAL IZED CONTROL When this display shows the system is UNDER CENTRALIZED CONTROL 4 DISPLAY VENTILATION AIR CLEANING This display shows that the total heat exchange and the air cleaning unit are in operation These are optional accessories 5 DISPLAY OPERATION MODE This display shows the current OPERATION MODE For cooling only type Auto and Heating are not installed 6 DISPLAY TEST INSPECTION TEST OP...

Page 228: ... are shown on the display in Figure 1 contrary to actual running situations 6 OPERATION PROCEDURE COOLING HEATING AUTOMATIC FAN AND PROGRAM DRY OPERATION 1 Refer to figure 3 on page 1 For cooling only type COOLING FAN and DRY operation are able to select ON OFF Press ON OFF BUTTON OPERATION lamp lights up or goes off and the sys tem starts or stops OPERATION EXPLANATION OF HEATING OPERATION DEFROS...

Page 229: ...IRECTION ADJUST button to select the air direction as follow ing The AIR FLOW FLAP display swings as shown the left and the air flow direction continu ously varies Automatic swing setting Press AIR FLOW DIRECTION ADJUST button to select the air direction of your choice The AIR FLOW FLAP display stops swinging and the air flow direction is fixed Fixed air flow direction setting MOVEMENT OF THE AIR ...

Page 230: ...rt After the timer is programmed the display shows the remaining time PROGRAM TIMER OPERATION 1 2 3 1 3 Press the TIMER ON OFF BUTTON once again to cancel programming The display vanishes Observe the following precautions to ensure the system operates Adjust the room temperature properly for a com fortable environment Avoid excessive heating or cooling Prevent direct sunlight from entering a room ...

Page 231: ...y con taminated If the dirt becomes impossible to clean change the air filter Air filter for exchange is optional 1 Open the suction grille Slide both knobs simultaneously as shown and then pull them downward Do the same procedure for closing Refer to Fig 2 2 Remove the air filters Push the 2 tabs up and slowly lower the grille Refer to Fig 3 3 Clean the air filter Use vacuum cleaner A or wash the...

Page 232: ...ire somewhere Contact your dealer if there are any problems Clean the air filter and outside panels After cleaning the air filter make sure to attach it Turn on the main power supply switch The display on the remote controller will be shown when the power is turned on To protect the unit turn on the main power switch at least 6 hours before operation WHAT TO DO WHEN STOPPING THE SYS TEM FOR A LONG...

Page 233: ...ing the unit may go into dry mode fan operates whisper and the air flow flaps become horizontal III THE FAN SPEED IS DIFFERENT FROM THE SETTING Pressing the fan speed control button does not change the fan speed When the room temperature reaches the set tem perature in heating mode the power supply from the outdoor unit stops and the indoor unit goes into whisper mode in a multi system the fan goe...

Page 234: ...em according to the following procedures 1 If the system does not operate at all Check if there is a power failure Wait until power is restored If power failure occurs during operation the system automati cally restarts immediately after the power sup ply recovers Check if the fuse has blown or breaker has worked Change the fuse or set the breaker 2 If the system stops operating after operating th...

Page 235: ...Instruction SiBE12 713 224 Operation Manual ...

Page 236: ...ecified Voltage between Indoor and Outdoor Units 246 5 10 Freeze up Protection Control 247 5 11 Outdoor Unit PCB Abnormality 249 5 12 OL Activation Compressor Overload 250 5 13 Compressor Lock 251 5 14 DC Fan Lock 252 5 15 Input Over Current Detection 253 5 16 Discharge Pipe Temperature Control 255 5 17 High Pressure Control in Cooling 256 5 18 Compressor Sensor System Abnormality 258 5 19 Positio...

Page 237: ... case conduct the diagnostic procedure described in the following pages Location of Operation Lamp In case of In case of FTK X S 20 25 35 50 D Series FTK X S 20 25 35 C Series In case of FTK X S 50 60 71 F Series In case of FTXG 25 35 E CTXG 50 E Series In case of FDK X S 25 35 50 60 C Series FDK X S 25 35 E Series In case of FVXS 25 35 50 F Series R4298 ON OFF OPERATION lamp green R4297 ON OFF In...

Page 238: ... if the operation lamp is normal If the lamp stops blinking after the above steps there is no malfunction Operation stops and operation lamp blinks only for indoor unit which the different operation mode is set later The first set operation mode has priority Troubleshooting with the LED Indication Outdoor Unit There are green and red LEDs on the PCB The flashing green LED indicates normal equipmen...

Page 239: ...indication 234 Diagnosis with outdoor unit LED indication 235 Some indoor units do not operate Check the type of the indoor units Check to make sure that the indoor unit type is compatible with the outdoor unit Diagnosis with indoor unit LED indication 234 Diagnosis with outdoor unit LED indication 235 Equipment operates but does not cool or does not heat only for heat pump model Check for wiring ...

Page 240: ...two consecutive beeps indicate non corresponding codes 2 To cancel the code display hold the timer cancel button down for 5 seconds The code display also cancels itself if the button is not pressed for 1 minute No Code No Code No Code 1 00 12 C7 23 H0 2 U4 13 H8 24 E1 3 F3 14 J3 25 P4 4 E6 15 A3 26 L3 5 L5 16 A1 27 L4 6 A6 17 C4 28 H6 7 E5 18 C5 29 H7 8 F6 19 H9 30 U2 9 C9 20 J6 31 UH 10 U0 21 UA ...

Page 241: ...a long beep Note 1 A short beep and two consecutive beeps indicate non corresponding codes 2 To cancel the code display hold the timer cancel button down for 5 seconds The code display also cancels itself if the button is not pressed for 1 minute No Code No Code No Code 1 00 13 C7 25 UA 2 U4 14 A3 26 UH 3 L5 15 H8 27 P4 4 E6 16 H9 28 L3 5 H6 17 C9 29 L4 6 H0 18 C4 30 H7 7 A6 19 C5 31 U2 8 E7 20 J3...

Page 242: ...link 2 Press the TEMP button Press TEMP or TEMP and change the digit until you hear the sound of beep or pi pi 3 Diagnose by the sound pi The number of tens does not accord with the error code pi pi The number of tens accords with the error code beep The both numbers of tens and units accord with the error code See 7 4 Enter the diagnosis mode again Press the MODE button The digit of the number of...

Page 243: ...oth numbers of tens and units do not accord with the error code pi pi The number of tens accords with the error code beep The both numbers of tens and units accord with the error code 7 Determine the error code The digits indicated when you hear the beep sound are error code Error codes and description Refer to page 233 8 Exit from the diagnosis mode Press the MODE button R4277 R4278 ...

Page 244: ...e thermistor abnormality C7 Front panel open close fault C9 Room temperature thermistor abnormality Outdoor Unit A5 Freeze up protection control E1 Outdoor unit PCB abnormality E5 OL activation compressor overloaded E6 Compressor lock E7 DC fan lock E8 Input over current detection F3 Discharge pipe temperature control F6 High pressure control in cooling H0 Compressor sensor system abnormality H6 P...

Page 245: ...oor unit PCB abnormality 236 A5 Freeze up protection control or high pressure control heat pump model only 237 A6 Fan motor or related abnormality AC motor Wall 20 35 C series Duct Floor Ceiling 239 DC motor Wall 20 50 D E series Floor 240 C4 Heat exchanger thermistor or related abnormality 242 C7 Front panel open close fault FTXG E series CTXG E series 243 C9 Room temperature thermistor abnormali...

Page 246: ...unit UA Unspecified voltage between indoor and outdoor units 275 UH Anti icing function in other rooms 275 5 3 3 4 4 U0 Insufficient gas 271 5 4 3 3 4 U2 Low voltage detection or over voltage detection 273 5 3 4 4 4 U7 Signal transmission error on outdoor unit PCB 274 5 4 3 4 4 A5 Freeze up protection control 247 5 4 4 4 3 E1 Outdoor unit PCB abnormality 249 5 4 3 4 3 E5 OL activation compressor o...

Page 247: ...tor connection Troubleshooting Note Connector Nos vary depending on models Control connector Connector connection check note YES Is it normal NO Correct connections Replace PCBs R1400 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Model Type Connector No Wall Mounted Type 20 25 35 class Terminal strip Control PCB Wall Mounted Type 50...

Page 248: ...on according to the temperature detected by the indoor unit heat exchanger thermistor Malfunction Decision Conditions High pressure control During heating operations the temperature detected by the indoor heat exchanger thermistor is above 65 C Freeze up protection When the indoor unit heat exchanger temperature is below 0 C during cooling operation Supposed Causes Operation halt due to clogged ai...

Page 249: ...anger thermistor check Check the intake air filter Check the air passage YES YES R4695 Check the dust accumulation on the indoor unit heat exchanger YES YES Is there any short circuit Is it very dirty Is it very dirty Does it conform to the thermistor characteristic chart NO Provide sufficient air passage Clean the air filter Clean the heat exchanger Replace the indoor unit PCB Replace the thermis...

Page 250: ...r of the fan motor Detection error due to faulty control PCB Troubleshooting Check No 16 Refer to P 285 Rotate the fan by hand Check No 16 Check Hall IC Operate the fan Does it rotate NO Does it rotate smoothly Is there an output Is it at the rated voltage Is there conductivity NO Check the capacitor s conductivity Check the fan motor voltage immediately after re start Is it at the rated voltage C...

Page 251: ...Conditions When the detected rotation speed does not reach the demanded rotation speed of the target tap and is less than 50 of the maximum fan motor rotation speed Supposed Causes Operation halt due to short circuit inside the fan motor winding Operation halt due to breaking of wire inside the fan motor Operation halt due to breaking of the fan motor lead wires Operation halt due to faulty capaci...

Page 252: ...output of fan motor connector Is motor power voltage DC 200V generated Is motor control power voltage DC 15V generated Turn off power supply and disconnect fan motor connector then turn power ON again Does it rotate Stop fan motor Is rotation number command pulse generated Is rotation number command pulse generated Check No 01 Check output of fan motor connector Check No 01 Check output of fan mot...

Page 253: ...n 120 ohms or below about 50 C more than 1 860 kohms Note The values vary slightly in some models Supposed Causes Faulty connector connection Faulty thermistor Faulty PCB Troubleshooting Check No 06 Refer to P 279 C4 Heat exchanger temperature thermistor C9 Room temperature thermistor Check the connector connection YES Correct the connection Replace the thermistor Replace the indoor unit PCB Repla...

Page 254: ...rn the breaker off 2 Remove the decorative plate 3 Remove the slot in panel 4 Put the plug in or turn the breaker on Wait until the initialization finishes 5 Operate the unit by the indoor unit ON OFF switch Restart and check the movement YES YES YES YES Remove the front panel and check the movement Does it move Does it open close fully Restart Does the error code reappear Does it move NO NO NO NO...

Page 255: ...When the data sent from the outdoor unit cannot be received normally or when the content of the data is abnormal Supposed Causes Faulty outdoor unit PCB Faulty indoor unit PCB Indoor unit outdoor unit signal transmission error due to wiring error Indoor unit outdoor unit signal transmission error due to disturbed power supply waveform Indoor unit outdoor unit signal transmission error due to break...

Page 256: ...l PCB Locate the cause of the disturbance of the power supply waveform and correct it Is there any wiring error NO R6471 Is LED A flashing Is the voltage 0 V NO Check No 10 Check power supply waveform Check the voltage of the indoor unit outdoor unit connection wires between No 1 and No 2 and between No 2 and No 3 YES YES NO Is there any disturbance NO Caution Be sure to turn off power switch befo...

Page 257: ...ge for the specified PCB 1 or 2 Replace the indoor unit PCB 1 or the outdoor unit PCB Q0347 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Indoor unit and outdoor unit matched NO YES YES Matched compatibly NO Check the code numbers 2P01234 for example of the indoor and outdoor unit PCB with the Parts List Check the indoor and outdoor...

Page 258: ...n the cooling mode the following conditions A and B are kept together for 5 minutes A Indoor unit heat exchanger temperature 1 C B Indoor unit heat exchanger temperature Room temperature 10 C If the freeze up protection control is activated 4 times continuously the system will be shut down The 4 time counter will reset itself if any of the following errors does not occur for 60 minutes OL radiatio...

Page 259: ...changer thermistor Do the vacuum drying Replace the indoor unit PCB and then start the wiring error check mode R4715 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Wiring or piping out of spec YES NO NO YES NO YES NO YES YES NO Error again Motor functioning Thermistor as specified in its characteristic chart Thermistor as specified i...

Page 260: ...is in abnormal running order Supposed Causes Out of control of microcomputer caused by external factors z Noise z Momentary fall of voltage z Momentary power loss Defective outdoor unit PCB Troubleshooting Replace the outdoor unit PCB Carry out grounding work The cause can be external factors other than malfunction Investigate the cause of noise R5142 Caution Be sure to turn off power switch befor...

Page 261: ... valve defective Troubleshooting Check No 04 Refer to P 277 Check No 05 Refer to P 278 Check No 06 Refer to P 279 Check No 11 Refer to P 282 Insert the thermistor in position Replace the discharge pipe thermistor Replace the valve itself or the coil Replace the four way valve coil or the valve itself Replace the outdoor unit PCB Refer to the refrigerant line check procedure R4697 Caution Be sure t...

Page 262: ...or about 5 minutes normal Supposed Causes Compressor locked Troubleshooting Turn off the power Disconnect the harnesses U V and W Inverter checker Part No 1225477 Correct the power supply or replace the PM1 Replace the outdoor unit PCB Replace the compressor Check the electronic expansion valve Replace it as required Replace the compressor R5143 Caution Be sure to turn off power switch before conn...

Page 263: ...dition Continuous run for about 5 minutes normal Supposed Causes Fan motor breakdown Harness or connector disconnected between fan motor and PCB or in poor contact Foreign matters stuck in the fan Troubleshooting Check No 15 Refer to P 284 Turn off the power and reconnect the connector Remove Replace the outdoor unit fan motor Replace the outdoor unit PCB R2843 Caution Be sure to turn off power sw...

Page 264: ...ions The following condition continues for 2 5 seconds Input current 20A typical value The compressor halts if the error occurs and restarts automatically after 3 minutes stand by Supposed Causes Over current due to compressor failure Over current due to defective power transistor Over current due to defective inverter main circuit electrolytic capacitor Over current due to defective outdoor unit ...

Page 265: ... above its stop level NO YES Normal NO YES Any LED off YES NO Check with the inverter checker Turn off the power and reconnect the harnesses Turn on the power again and get restarted Turn off the power and disconnect the harnesses U V and W Get restarted and measure the input current Check No 08 Check the discharge pressure Check No 07 Check the installation condition Check No 14 Check the main ci...

Page 266: ...Causes Refrigerant shortage Four way valve malfunctioning Discharge pipe thermistor defective heat exchanger or outdoor temperature thermistor defective Outdoor unit PCB defective Water mixed in the local piping Electronic expansion valve defective Stop valve defective Troubleshooting Check No 04 Refer to P 277 Check No 06 Refer to P 279 Check No 11 Refer to P 282 Replace a defective thermistor Re...

Page 267: ...perature being sensed by the heat exchanger thermistor exceeds the limit Malfunction Decision Conditions Activated when the temperature being sensed by the heat exchanger thermistor rises above 65 C The error is cleared when the temperature drops below 50 C Supposed Causes The installation space is not large enough Faulty outdoor unit fan Faulty electronic expansion valve Faulty outdoor unit heat ...

Page 268: ...r the connector or fan motor lead wires Replace the heat exchanger thermistor Replace PCB Replace the electronic expansion valve or coil Replace the PCB Change the air outlet grille position Change the installation location Clean the heat exchanger Check the installation space Check No 09 Outdoor fan check Judgment Check No 06 Heat exchanger thermistor check Judgment Check No 07 Installation condi...

Page 269: ... DC voltage which is detected before the compressor startup Fault condition is identified by compressor current which is detected right after the compressor startup Malfunction Decision Conditions The detected valve of the supply voltage and the DC voltage is obviously low or high The compressor current doesn t run when the compressor is started Supposed Causes Reactor disconnection Compressor dis...

Page 270: ...een all each terminal 10Ω or less NO YES Turn off the power Reactor check Compressor check Reactor connection check Compressor connection check Disconnect the reactor from the outdoor unit PCB and measure the resistance value between reactor terminals with tester Disconnect the compressor relay harness from the outdoor unit PCB and measure the resistance value between the terminals of the each 3 c...

Page 271: ...ssor relay cable disconnected Compressor itself defective Outdoor unit PCB defective Stop valve closed Input voltage out of specification Troubleshooting Check No 13 Refer to P 283 Replace the outdoor unit PCB outdoor unit fan Replace the outdoor unit PCB Reconnect as specified Inverter checker Part No 1225477 Correct the power supply or replace the outdoor unit PCB Replace the compressor R5145 Ca...

Page 272: ...urrent Malfunction Decision Conditions The compressor running frequency is below 55 Hz and the CT input is below 0 1 V The input current is also below 0 5 A If this error repeats 4 times the system will be shut down The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time Supposed Causes Power transistor defecti...

Page 273: ...witch before connect or disconnect connector or parts damage may be occurred Running current as shown at right with relay cable 1 or 2 YES Current guideline 2 sec Time Rising with increasing frequency Capacitor charged when the indoor unit or outdoor unit main relay turns on NO NO DC380 30V YES Voltage within the allowable range Supply voltage 15 YES NO Any LED off Compressor running YES NO YES NO...

Page 274: ...istor Malfunction Decision Conditions When the thermistor input is above 4 96 V or below 0 04 V with the power on the J3 error is judged if the discharge pipe thermistor temperature is smaller than the condenser thermistor temperature or the system will be shut down if all the units are judged with the J8 error Supposed Causes Connector in poor contact Thermistor defective Outdoor unit PCB defecti...

Page 275: ...e the following thermistor z Indoor unit heat exchanger thermistor Replace the outdoor unit PC board Replace the indoor unit PC board R4718 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Error displayed again on remote controller NO YES YES YES NO Indoor unit heat exchanger thermistor functioning NO Connector or thermistor disconnect...

Page 276: ... is detected by checking the radiation fin thermistor with the compressor off Malfunction Decision Conditions With the compressor off the radiation fin temperature is above 100 C The error is cleared when the temperature drops below 70 C Supposed Causes Fin temperature rise due to defective outdoor unit fan Fin temperature rise due to short circuit Fin thermistor defective Connector in poor contac...

Page 277: ...to turn off power switch before connect or disconnect connector or parts damage may be occurred Error again or outdoor unit fan activated YES NO Slightly dirty Check No 09 Check the outdoor unit fan or related Malfunctioning Radiation fin dirty Too dirty Functioning Above 100 C NO YES Check the radiation fin temperature Check No 07 Check the installation condition WARNING To cool down the electric...

Page 278: ...ions The radiation fin temperature with the compressor on is above 103 C The error is cleared when the temperature drops below 95 C If a radiation fin temperature rise takes place 255 times successively the system will be shut down The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time Supposed Causes Fin temp...

Page 279: ...transistor Replace the fan motor Correct the connectors and fan motor leads Replace the outdoor unit PCB Clean up the radiation fin R5148 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Error displayed again YES NO Slightly dirty Check No 09 Check the outdoor unit fan or related Malfunctioning Radiation fin dirty Too dirty Functioning...

Page 280: ...rs while the compressor is running An output over current input is fed from the output over current detection circuit to the microcomputer The system will be shut down if the error occurs 16 times Clearing condition Continuous run for about 5 minutes normal Supposed Causes Over current due to defective power transistor Over current due to wrong internal wiring Over current due to abnormal supply v...

Page 281: ...nected for part replacement for example and the system is interrupted by an output over current take the following procedure Error again NO YES NO YES Voltage as rated YES NO Short circuit or breakage between compressor s coil phases NO YES Normal YES NO Any LED off Turn off the power and turn it on again to get the system started See if the same error occurs Turn off the power and disconnect the ...

Page 282: ...es DC current 0 035 output frequency 0 5 Output frequency 55 Hz Gas shortage detection II The following conditions continue for 80 seconds Target opening of the electronic expansion valve 450 pulse Cooling discharge temperature 255 256 target discharge temperature 20 C Heating discharge temperature 255 256 target discharge temperature 40 C If a gas shortage error takes place 4 times straight the s...

Page 283: ...it heat exchanger thermistor 1 Replace the PCB 2 Replace the compressor Procedure complete R5150 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Any thermistor disconnected YES Malfunctioning NO Stop valve closed NO YES YES NO Gas shortage error again Functioning Check No 06 Check the thermistors YES NO Oil oozing at internal piping N...

Page 284: ...rror occurs 16 times Clearing condition Continuous run for about 60 minutes normal Supposed Causes Supply voltage not as specified Over voltage detector or DC voltage detection circuit defective PAM control part s defective Troubleshooting Check the supply voltage Correct the power supply Check for such factors for a long term Try to get restarted a couple of times Replace the PM1 Replace the outd...

Page 285: ... can not be received successively for 9 sec The abnormality is determined if the above fault conditions occurs once Fault counter is reset when the data from the PM1 can be successfully received Supposed Causes Defective outdoor unit PCB Troubleshooting Replace the outdoor unit PCB The cause can be an external factor other than the malfunction Monitor in long term R5152 Caution Be sure to turn off...

Page 286: ...ation halt due to unspecified internal and or external voltages Operation halt due to mismatching of indoor and outdoor units Supposed Causes Operation halt due to the anti icing function in other rooms Wrong connections at the indoor unit PCB wrongly connected Troubleshooting Check the model name The freeze protection function is activated in other rooms Refer to A5 Correct Reconnect R3066 Cautio...

Page 287: ...sembly Check the continuity of the switch connection The shutter can be opened and closed with hand Keep the shutter open and closed all the way for each continuity check steps 7 6 5 4 3 2 1 Motor power supply voltage Unused Unused P 0V reference potential Motor control voltage 15 VDC Rotation command voltage 1 5 VDC Rotation pulse input S1 or S301 8 7 6 5 4 3 2 1 Motor power supply voltage Unused...

Page 288: ...the no operation unit Flow noise of refrigerant in the no operation unit Operation halt due to icing protection Heating The unit does not heat Refrigerant flow rate vary by unit Discharge air temperatures are different by room Peak cut Reset power supply and conduct cooling operation unit by unit 2 Valve body catches at complete close position Symptom Cooling The only unit having problem does not ...

Page 289: ...unit PCB Replace the four way valve coil Replace the four way valve R5153 NO Four way valve coil Cooling dry No continuity Heating Continuity YES YES Four way valve coil resistance at 1500 ohms NO S80 voltage at DC 220 240 V with compressor on Fig 1 Disconnect the four way valve coil from the connector and check the continuity Fig 1 Voltage at S80 DC220 240V ON Compressor Time ...

Page 290: ...ors on the PCB and measure the resistance of each thermistor using tester The relationship between normal temperature and resistance is shown in the graph and the table below Thermistor R25 C 20kΩ B 3950 Temperature C 20 211 0 kΩ 15 150 10 116 5 5 88 0 67 2 5 51 9 10 40 15 31 8 20 25 25 20 30 16 35 13 40 10 6 45 8 7 50 7 2 ...

Page 291: ...nger Change the installation location or direction Check the outside air temperature temperature of air taken in by the outdoor unit The outside air temperature shall be 46 C or lower Check the allowable dimensions of the air suction and discharge area Is the air flow blocked by obstacles or winds blowing in the opposite direction R3048 Abnormal YES YES YES Does the discharged air from other outdo...

Page 292: ...op valve Replace the pipe installed at the site Clean Replace the compressor R1443 YES YES YES NO NO NO NO At the heat exchanger and air filter dirty Is the stop valve open Is the connection pipe deformed YES High Check the outdoor unit fan system Reconnect R2857 Outdoor unit fan running YES Fan motor lead wire connector disconnected YES NO NO Outdoor unit fan system functioning Go to Check No 15 ...

Page 293: ...veform disturbance near the zero cross sections circled in Fig 2 6 1 10 Inverter Units Refrigerant System Check Check No 11 Fig 1 Fig 2 Refrigerant system check Check for gas leaks See the section on insufficient gas detection Conduct the check after operating the equipment for a sufficient length of time Correct the problem Conduct vacuum drying Replace the refrigerant Is the discharge thermister...

Page 294: ... sure the power transistor s supply voltage is below 50 V using the tester z For the UVW make measurements at the Faston terminal on the board or the relay connector THERMISTOR LEAD WIRE GAS PIPE THERMISTOR LEAD WIRE LIQUID PIPE REVERSING SOLENOID VALVE LEAD WIRE MULTIMETER DC VOLTAGE RANGE REACTOR LEAD WIRE COMPRESSOR LEAD WIRE OL LEAD WIRE THERMISTOR LEAD WIRE FAN MOTOR LEAD WIRE ELECTRONIC EXPA...

Page 295: ...plied 1 Stop the operation first and then the power and disconnect the connector S70 2 Make sure there is about DC 320 V between pins 4 and 7 3 With the system and the power still off reconnect the connector S70 4 Make a turn of the fan motor with a hand and make sure the pulse 0 15 V appears twice at pins 1 and 4 If the fan motor protection fuse is blown out the outdoor unit fan may also be in tr...

Page 296: ...nnected check the following Output voltage of about 5 V between pins 1 and 3 Generation of 3 pulses between pins 2 and 3 when the fan motor is operating Failure of 1 Æ faulty PCB Æ Replace the PCB Failure of 2 Æ faulty Hall IC Æ Replace the fan motor Both 1 and 2 result Æ Replace the PCB The connector has 3 pins and there are two patterns of lead wire colors ...

Page 297: ...Check SiBE12 713 286 Service Diagnosis ...

Page 298: ... of the Electrical Box 292 1 3 Removal of the PCB 300 1 4 Removal of the Propeller Fan Fan Motor 306 1 5 Removal of the Sound Blanket 308 1 6 Removal of Electronic Expansion Valve Coil Four Way Valve Coil and Thermistor 312 1 7 Removal of the Distributor 315 1 8 Removal of the Four Way Valve 316 1 9 Removal of the Compressor 317 ...

Page 299: ...d Plates Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 External appearance Take care not to cut your finger by the fins of the heat exchanger 2 Loosen the 4 screws 2 on both sides of the top panel ...

Page 300: ... 4 Loosen the 2 screws each 1 in front and back of the clamp plate 5 Slide the clamp plate to the left to undo the hooks and remove the plate 6 Undo the upper 2 hooks to remove the front panel Align the position of hole of the upper hook to pull the front panel out Step Procedure Points ...

Page 301: ...E12 713 290 Removal Procedure 7 Lift the front panel up to remove the left side hooks and open the panel 8 The front panel has the 3 hooks on the left 9 The front panel has the 1 hook on the right Step Procedure Points ...

Page 302: ...emoval Procedure 291 10 Loosen the 4 screws of the discharge grille 11 Loosen the 2 screws of the stop valve cover And then slide the cover downward to remove When assembling make sure to catch the 5 hooks Step Procedure Points ...

Page 303: ... disassembling work Step Procedure Points 1 Disconnect the connecting wires Illustrations are for 3 room model 4MK X S F models have 4 ports 1 Inside structure 2 Disconnect the connecting wires Connecting wires of the A B C D port 1 Black Power supply 2 White Power supply 3 Red Transmission Power Supply wires L Black N White Fasten the wires on the terminal board with screws ...

Page 304: ... 1 Detach the fixing tape for the electrical box cover 2 Undo the 4 hooks at the mark of the drip proof cover 3 Lift the cover up to remove 4 Disconnect the connector for fan motor S70 from the PCB The shape of S70 wire is different depending on the models Step Procedure Points ...

Page 305: ...ent of the wire harness for fan motor 6 Disconnect the connectors for electronic expansion valve coil S20 White S21 Red S22 Blue S23 Yellow The number of the connectors are different according to the number of the connected indoor units 7 Undo the wire clip Step Procedure Points ...

Page 306: ...he OL wire harness and the compressor wire harness together from the partition plate 10 Use long nose pliers or the like to pull out the clamp Detach the clamp Just pull the push mount type out of position 11 Disconnect the connector for relay harness of compressor Step Procedure Points Clamp R6422 Clamp R6423 ...

Page 307: ...emoval Procedure 12 Disconnect the each connector S90 Outdoor air heat exchanger discharge pipe thermistor S92 Gas pipe thermistor S93 Liquid pipe thermistor 13 Disconnect the connector for four way valve S80 Step Procedure Points ...

Page 308: ...cal box 15 Undo the wire clip for the thermistor lead wire 3 Remove the electrical box 1 Loosen the 2 screws of the earth terminal 4 Disconnect the power supply connecting wires Illustrations are for 3 room model 1 Loosen the screws on the terminal board and disconnect the wires of A B C and D port Step Procedure Points ...

Page 309: ...Outdoor Unit SiBE12 713 298 Removal Procedure 2 Detach the outdoor air thermistor 3 Loosen the screw on the right side of the electrical box Step Procedure Points ...

Page 310: ...SiBE12 713 Outdoor Unit Removal Procedure 299 4 Loosen the 1 screw in front of the electrical box 5 Lift up the electrical box to remove Step Procedure Points ...

Page 311: ...after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the service PCB Illustrations are for 3 room model 1 External appearance of the service PCB and the terminal board 2 Loosen the 1 screw of the terminal board and open it 3 Disconnect the connector S52 and S102 from the service PCB ...

Page 312: ...01 4 Widen the upper hook and pull the service PCB upward to remove 2 Remove the control PCB 1 Disconnect the each connectors on the terminal board 2 Disconnect the 2 connectors for reactor 3 Loosen the 3 screws of the PCB Step Procedure Points ...

Page 313: ...s for compressor fromthe hook 6 Lift up the control PCB to remove In working be careful not to break the control PCB with the excessive force because the PCB and the radiation fin are adhered to one another When assembling make sure to use the silicon material Silicon material Part No 1172698 7 Each wire harness Step Procedure Points ...

Page 314: ...r Unit Removal Procedure 303 8 Names of parts on the control PCB See page 56 for detail 9 Loosen the 2 screws of the radiation fin 10 Loosen the 3 screws of the reactor and the 1 screw of the clamp Step Procedure Points ...

Page 315: ...Unit SiBE12 713 304 Removal Procedure 3 Disconnect the wire harnesses 4 Remove the terminal board Illustrations are for 3 room model 1 Open the electrical box and remove the terminal board Step Procedure Points ...

Page 316: ...SiBE12 713 Outdoor Unit Removal Procedure 305 Step Procedure Points ...

Page 317: ...ep Procedure Points 1 Remove the fan motor fixing plate Remove the outer panels and plates Remove the electrical box 2 Take out the fan motor fixing plate toward yourself When assembling fit the lower hooks 3 Loosen the washer fitted nut to remove the propeller fan When assembling align mark of the propeller fan with D cut section of the motor shaft When assembling make sure z mark of the fan moto...

Page 318: ...of the lead wire Loosen the 4 screws of the fan motor When assembling put the lead wire through the back of the motor so as not to be entangled with the propeller fan 5 Detach the 4 screws and 4 rubber vibration isolators Step Procedure Points R3249 Lead wire Propeller fan ...

Page 319: ...or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the right side panel Remove the outer panels and plates Remove the electrical box 1 Loosen the 3 screws on the right of the right side panel 2 Loosen the 2 screws on the back 3 Remove the packing There is a hook on the back ...

Page 320: ...e 309 4 Pull up the right side panel 5 Loosen the 2 screws of the wiring fixture 2 Remove the partition plate 1 Loosen the 2 screws to remove the partition plate 2 Detach the clamp of the relay harness for the compressor Step Procedure Points ...

Page 321: ...the lower hook of the partition plate 3 Remove the sound blanket Illustrations are different depending on the models Since the piping ports on the sound blanket are torn easily remove the blanket carefully 1 Lift up the sound blanket top upper to remove 2 Remove the sound blanket top lower Step Procedure Points ...

Page 322: ...SiBE12 713 Outdoor Unit Removal Procedure 311 3 Undo the fixing strings open the sound blanket body and pull it out 4 Open the sound blanket inner and pull it out Step Procedure Points ...

Page 323: ...ning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the electronic expansion valve coil Illustrations are for 3 room model 1 Remove the each electronic expansion valve coil 2 Remove the four way valve coil 1 Loosen the 1 screw to remove the four way valve coil ...

Page 324: ...ve the liquid pipe thermistor S90 Outdoor air thermistor Heat exchanger thermistor Discharge pipe thermistor S92 Gas pipe thermistor Room A Black Room B Gray Room C Brown Room D Red S93 Liquid pipe thermistor Room A Black Room B Gray Room C Yellow Room D Blue 2 Open the putty and remove the gas pipe thermistor 4 Remove the heat exchanger thermistor 1 Remove the heat exchanger thermistor Step Proce...

Page 325: ...Meet the edge of the thermistor and clip Be careful not to loose the clip for the discharge pipe thermistor 1 Undo the clip and remove the discharge pipe thermistor 6 Remove the assembly of thermistor 1 The figure shows the arrangement of the assembly of thermistor Step Procedure Points ...

Page 326: ... the putty Warning Ventilate when refrigerant leaks during the work If refrigerant contacts fire it will cause to arise toxic gas Caution Be careful not to get yourself burnt with the pipes and other parts that are heated by the gas welding rod Caution From the viewpoint of global environment protection do not discharge the refrigerant gas in the atmosphere Make sure to recover the refrigerant gas...

Page 327: ...ith wet cloth and provide water so that the cloth will not be dried and avoid excessive heating Keep below 120 C Be careful so as not to break the pipes by pressing it excessively by pliers when withdrawing it In case of the difficulty with gas brazing machine 1 Disconnect the brazed part where is easy to disconnect and restore 2 Cut pipes on the main unit by a miniature copper tube cutter in orde...

Page 328: ...name plate Warning Since it may happen that refrigeration oil in the compressor will catch fire prepare wet cloth so as to extinguish fire immediately Warning Ventilate when refrigerant leaks during the work If refrigerant contacts fire it will cause to arise toxic gas Caution Be careful not to get yourself burnt with the pipes and other parts that are heated by the gas welding rod 1 Remove the te...

Page 329: ...s one nut fixing the compressor Remove the nut with an open end spanner Before working make sure that the refrigerant is empty in the circuit Be sure to apply nitrogen replacement when heating up the brazed part 7 Heat up the brazed part of the discharge side and disconnect part a 8 Heat up the brazed part of the suction side and disconnect part b 9 Lift the compressor up to remove Step Procedure ...

Page 330: ...SiBE12 713 Others 319 Part 8 Others 1 Others 320 1 1 Test Run from the Remote Controller 320 1 2 Jumper Settings 321 ...

Page 331: ...n and Testing 1 Measure the supply voltage and make sure that it falls in the specified range 2 Trial operation should be carried out in either cooling or heating mode 3 Carry out the test operation in accordance with the Operation Manual to ensure that all functions and parts such as louver movement are working properly The air conditioner requires a small amount of power in its standby mode If t...

Page 332: ... remote controller 1 Slide the front cover and take it off 2 Cut the address jumper J4 1 2 2 Jumper Setting R4417 ADDRESS JA ADDRESS JA EXIST 1 CUT 2 ADDRESS J4 EXIST CUT 1 2 J4 R4418 Jumper On indoor PCB Function When connected factory set When cut JC Power failure recovery function Auto start Unit does not resume operation after recovering from a power failure Timer ON OFF settings are cleared J...

Page 333: ...Gently push and slide the sensor to adjust the angle Aim so that the sensor is pointing to the center of the room or to the part of the room that is most frequently used After adjusting the angle gently wipe the sensor with a clean cloth being careful not to scratch the sensor Caution Do not hit or violently push the Intelligent eye sensor This can lead to damage and malfunction Do not place large...

Page 334: ...SiBE12 713 Appendix 323 Part 9 Appendix 1 Piping Diagrams 324 1 1 Indoor Units 324 1 2 Outdoor Units 330 2 Wiring Diagrams 331 2 1 Indoor Units 331 2 2 Outdoor Units 336 ...

Page 335: ...G 6 4CuT 6 4CuT 4D050757A 7 9CuT MAFFLER ASSY CROSS FLOW FAN FAN MOTOR INDOOR UNIT M 6 4CuT 7 0CuT 9 5CuT HEAT EXCHANGER REFRIGERANT FLOW COOLING 6 4CuT 6 4CuT THERMISTOR ON HEAT EXCH FIELD PIPING 6 4CuT FIELD PIPING 12 7CuT 4D051577 M FIELD PIPING FIELD PIPING 6 4CuT 9 5CuT 7 9CuT REFRIGERANT FLOW FAN MOTOR ON HEAT EXCH THERMISTOR INDOOR UNIT COOLING 7 0CuT 6 4CuT 9 5CuT HEAT EXCHANGER 6 4CuT 6 4...

Page 336: ...FAN FAN MOTOR THERMISTOR ON HEAT EXCH M INDOOR UNIT REFRIGERANT FLOW HEATING COOLING 7 0CuT 7 0CuT 9 5CuT HEAT EXCHANGER 7 0CuT 7 0CuT 4D045301B FIELD PIPING FIELD PIPING 12 7CuT 6 4CuT 7 0CuT CROSS FLOW FAN REFRIGERANT FLOW FAN MOTOR M INDOOR UNIT HEATING COOLING 7 0CuT 7 0CuT 9 5CuT HEAT EXCHANGER 7 0CuT 7 0CuT THERMISTOR ON HEAT EXCH 4D050924 FIELD PIPING FIELD PIPING 9 5CuT 6 4CuT 7 9CuT MAFFL...

Page 337: ...IPING 6 4CuT FIELD PIPING 9 5CuT 7 9CuT CROSS FLOW FAN FAN MOTOR THERMISTOR ON HEAT EXCH M INDOOR UNIT 7 0CuT 6 4CuT REFRIGERANT FLOW COOLING HEATING 9 5CuT HEAT EXCHANGER 6 4CuT 6 4CuT 4D049319A FIELD PIPING FIELD PIPING 12 7CuT 6 4CuT CROSS FLOW FAN FAN MOTOR 7 9CuT INDOOR UNIT 12 7CuT M HEAT EXCHANGER REFRIGERANT FLOW ON HEAT EXCH THERMISTOR HEATING COOLING 4D040081Q 15 9CuT FIELD PIPING FIELD ...

Page 338: ...DXS35CVMB CDKS25CVMB CDXS25CVMB CDKS60CVMB CDXS50CVMA CDXS60CVMA CDXS60CVMB CDKS50CVMB CDXS50CVMB 12 7 9 5 FDKS25CVMB FDKS35CVMB FDXS25CAVMB FDXS35CAVMB FDKS25CAVMB FDKS35CAVMB FDKS25EAVMB FDKS35EAVMB FDXS50CVMB FDXS60CVMB FDKS50CVMB FDKS60CVMB CDXS25EAVMA CDXS35EAVMA CDKS25EAVMA CDKS35EAVMA CDXS25EAVMT CDXS35EAVMT CDKS25EAVMT CDKS35EAVMT FDXS35CVMA CDXS25EV2C CDXS35EV2C CDXS50EV2C CDXS60EV2C FDXS...

Page 339: ...NIT 9 5CuT SIROCCO FAN 12 7CuT FAN MOTOR M HEAT EXCHANGER THERMISTOR ON HEAT EXCH 4D048724A FVXS25FV1B FVXS35FV1B FVXS50FV1B MUFFLER ASSY 6 4CuT 6 4CuT FIELD PIPING TURBO FAN FIELD PIPING HEAT EXCHANGER REFRIGERANT FLOW 6 4CuT 6 4CuT FAN MOTOR 9 5CuT M 6 4CuT 6 4CuT 7 0CuT COOLING 9 5CuT THERMISTOR ONHEATEXCH HEATING INDOOR UNIT 4D056137 FAN MOTOR 6 4CuT THERMISTOR ONHEATEXCH 7 0CuT TURBO FAN 6 4C...

Page 340: ...BQ60BVL FCQ50 60C7VEB FUQ71 100 125BUV1B FUQ71 100 125BVV1B FHQ71 100 125BUV1B FHQ71 100 125BVV1B FAQ71 100BUV1B FAQ71 100BVV1B FXUQ70 100 125MV1 FHQ71 100 125BAV3B FCQ71 100 125 140DV3B FCQ71 100 125 140DAV3B FCQ71BVE FBQ71BV1 FBQ71BVL FCQ71 100 125 140C7VEB FCQH71 100 125 140C7VEB Field piping Field piping C1220T 0 C1220T 0 6 4 6 4 9 5 φ φ 12 7 15 9 9 5 To Outdoor unit MODEL Indoor unit 4D037995...

Page 341: ... 6 4 CuT 15 9 CuT 12 7 CuT ROOM D ROOM C ROOM B ROOM A ROOM D ROOM C ROOM B ROOM A GAS FIELD FIELD PIPING PIPING LIQUID 3D034513H EVA EVB COOLING 12 7CuT HEAT EXCHANGER 9 5 CuT M FILTER 9 5CuT ROOM D REVERSING SOLENOID VALVE HEADER HEATING 9 5 CuT 12 7CuT FILTER 6 4 CuT HEADER HEAT EXCHANGER LIQUID PIPE THERMISTOR DLB STOP VALVE DISCHARGE PIPE 6 4CuT 12 7 CuT 6 4 CuT ROOM B 12 7CuT FILTER LIQUID P...

Page 342: ...PCB1 PCB4 X1M 3 2 1 PROTECTIVE EARTH THERMISTOR THE MAIN POWER SUPPLY IS ON AGAIN TURNED OFF AND THEN BACK NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF FIELD WIRING CAUTION 2 3 1 OUTDOOR 3D051268A CONTROLLER WIRELESS PCB3 PCB4 INTELLIGENT EYE REMOTE SENSOR LED2 LED3 H2P H3P LED1 H1P S1W R1T t S27 S36 S26 PCB2 S35 S21 RECEIVER HA SIGNAL PCB1 S29 S28 X41A RECTIFIER S32 R2T t 1 RED M1S V1 M TRAN...

Page 343: ...AT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN CAUTION FIELD WIRING 2 3 1 outdoor 3D033599G CONTROLLER WIRELESS REMOTE PCB4 PCB3 PCB5 INTELLIGENT EYE LED1 H1P R1T SENSOR t S37 S38 LED2 H2P LED3 H3P PCB2 S27 S36 S1W RECEIVER SIGNAL S26 S35 S21 S29 S28 PCB1 R2T S32 t RECTIFIER 1 RED M1S M S6 ORG YLW PNK 5 BLU 1 TRANSMISSION BRN RED CIRCUIT M2S S...

Page 344: ... EARTH TERMINAL HEAT EX FIELD WIRING NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN CAUTION 2 3 1 outdoor FG F1U H2P H4P M1F M1S M2S M3S PCB1 PCB2 PCB3 R1T R2T S1 S51 S1W S2W X1M E1 E2 3D050493 PCB2 RECEIVER SIGNAL LED H1P CONTROLLER REMOTE WIRELESS LED H2P S1W LED H3P 2RTH1 R1T t 10 1 S1 1 C1 BRN F1U S26 2 PCB1 S32 R2T t 1 10 BRN S21 1...

Page 345: ...PCB1 PCB4 PRINTED CIRCUIT BOARD R1T R2T THERMISTOR X1M TERMINAL STRIP CAUTION FIELD WIRING 2 3 1 outdoor 3D033909E SIGNAL RECEIVER M S1W WIRELESS REMOTE CONTROLLER outdoor FIELD WIRING F1U M M S2W 4 3 2 1 indoor 3 X1M 2 1 E3 S26 BLU S4W AIR OUTLET SELECTION SWITCH S42 PCB4 S48 S41 M1S X1M H1P H2P 3 15A BRN RED 1 RECTIFIER RED LED2 WHT M1S V2 5 H2 GRN S4W TRANSMISSION CIRCUIT ORG 6 M2S PNK PCB3 V1 ...

Page 346: ...HT NOTE 6 t X33A T1R X17A t X11A CONNECTER COLOUR FOR PRINTED CIRCUIT BOARD CONNECTER COLOUR FOR COMPONENTS CONNECTER DISCRIMINATION COLOUR FOR COMPONENTS X35A HAP V1TR X24A NOTE 4 KAR X15A X14A X20A X29A X26A X5A BLK BLK PRP BLU GRY X1M BLK RED P2 P1 NOTE 6 YLW C1 WHT WIRED REMOTE CONTROLLER S1Q MSW M1F M1S M SS1 P2 P1 Q1M R1T C1 A3P A4P S1Q Q1M X1M X2M A1P HAP F1U R3T R2T R1T SS1 R1T M1F M1S V1T...

Page 347: ...N MOTOR L1R REACTOR Q1L OVERLOAD PROTECTOR PM1 POWER MODULE PCB1 2 PRINTED CIRCUIT BOARD SHEET METAL TERMINAL STRIP FIXED PLATE 3D055885 indoor outdoor FIELD WIRING 9 BLK BLU 1 N BLU S102 RED S20 RED 4 WHT 3 WHT BLK Y1R 2 1 9 RED A A WHT 2 ROOM B ROOM D V R9T RED SW3 LED GAS PIPE BLU R8T R5T S21 5 L BLU BLU YLW Z2C WHT BLU 1 U 3 1 BLU 1 M1F 6 P B YLW ROOM B ROOM D U Z5C BLK 2 MRM10 MRM20 MRC W MAG...

Page 348: ... 282 power transistor check 283 thermistor resistance check 279 turning speed pulse input on the outdoor unit PCB check 284 check No 01 276 check No 02 276 check No 03 276 check No 04 277 check No 05 278 check No 06 279 check No 07 280 check No 08 281 check No 09 281 check No 10 282 check No 11 282 check No 12 283 check No 13 283 check No 14 284 check No 15 284 check No 16 285 compressor 317 compr...

Page 349: ...37 247 frequency control 83 frequency principle 60 front panel 289 front panel control 64 front panel mechanism 45 243 front panel open close fault 243 FU1 38 40 43 45 47 49 52 56 FU2 56 FU3 56 functions 2 fuse 38 40 43 45 47 49 52 56 G gas pipe isothermal control during cooling 94 gas pipe thermistor 78 80 H H0 258 H6 260 H8 261 H9 263 HA 38 43 45 Hall IC 65 239 240 Hall IC check 285 HAP 54 heati...

Page 350: ...82 power transistor check 283 power airflow dual flaps 62 POWERFUL operation 141 193 POWERFUL operation mode 100 preheating operation 86 preparation before operation 126 186 pressure equalization control 94 preventing indoor freezing 97 printed circuit board PCB buzzer PCB 44 ceiling suspended type 55 control PCB 47 301 control PCB indoor unit 39 42 44 46 50 53 display PCB 39 44 48 51 53 INTELLIGE...

Page 351: ...80 95 314 gas pipe thermistor 78 80 313 heat exchanger thermistor 313 indoor heat exchanger thermistor 79 81 liquid pipe thermistor 79 313 outdoor air thermistor 313 outdoor heat exchanger thermistor 78 80 thermistor or related abnormality indoor unit 242 thermistor or related abnormality outdoor unit 263 thermistor resistance check 279 thermostat control 68 TIMER operation 154 196 titanium apatit...

Page 352: ...sion valve control 92 F fan motor connector output check 276 fan motor or related abnormality ac motor 239 DC motor 240 four way valve performance check 278 freeze up protection control 89 237 247 frequency control 83 frequency principle 60 front panel open close fault 243 function of thermistor cooling only model 80 heat pump model 78 H Hall IC check 285 heating peak cut control 89 high pressure ...

Page 353: ...heck 282 power transistor check 283 priority room setting 100 programme dry function 66 R radiation fin temperature rise 267 remote controller 229 230 S sensor PCB 53 service monitor PCB 58 service PCB 53 signal receiver PCB 39 42 44 46 51 signal transmission error 244 signal transmission error on outdoor unit PCB 274 starting control flow 64 starting timing chart 64 T target discharge pipe temper...

Page 354: ...332 FTKS60FV1B 332 FTKS71FV1B 332 FTXG25EV1BW S 333 FTXG35EV1BW S 333 FTXS20CAVMB 332 FTXS20D3VMW L 331 FTXS25CAVMB 332 FTXS25D3VMW L 331 FTXS35CAVMB 332 FTXS35D3VMW L 331 FTXS50D2V1W L 331 FTXS50FV1B 332 FTXS60FV1B 332 FTXS71FV1B 332 FVXS25FV1B 334 FVXS35FV1B 334 FVXS50FV1B 334 wiring error check 98 ...

Page 355: ...Specifications designs and other content appearing in this brochure are current as of March 2007 but subject to change without notice SiBE 12 713 Printed in Japan 03 2007 B AK ...

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