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Daikin 2AMX40G2V1B, Service Manual

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Service 
Manual

Inverter Multi for 2 Rooms

G-Series / H-Series

SiBE12-933_A

[Applied Models]

z

 Inverter Multi : Cooling Only

z

 Inverter Multi : Heat Pump

Summary of Contents for 2AMX40G2V1B

Page 1: ...Service Manual Inverter Multi for 2 Rooms G Series H Series SiBE12 933_A Applied Models z Inverter Multi Cooling Only z Inverter Multi Heat Pump ...

Page 2: ...FQ50B8V1B Outdoor Unit 2MKS40H2V1B 2MKS50H2V1B zHeat Pump Indoor Unit ATX20GV1B FTXG25EV1BW S FDXS50CVMB ATX25GV1B FTXG35EV1BW S FDXS25EAVMB ATX35GV1B CTXG50EV1BW S FDXS35EAVMB ATXS20G2V1B FTXS20G2V1B FLXS25BAVMB ATXS25G2V1B FTXS25G2V1B FLXS35BAVMB ATXS35G2V1B FTXS35G2V1B FLXS50BAVMB ATXS42G2V1B FTXS42G2V1B FVXS25FV1B ATXS50G2V1B FTXS50G2V1B FVXS35FV1B ATXG25EV1B FVXS50FV1B ATXG35EV1B FFQ25B8V1B A...

Page 3: ...e 48 1 5 Ceiling Mounted Cassette Type 600 600 50 1 6 Outdoor Units 53 Part 4 Function and Control 55 1 Main Functions 56 1 1 Temperature Control 56 1 2 Frequency Principle 56 1 3 Power Airflow Flaps Wide Angle Louvers Auto Swing COMFORT AIRFLOW Mode and 3 D Airflow 58 1 4 Operation Starting Control 60 1 5 Fan Speed Control for Indoor Units 61 1 6 Program Dry Function 63 1 7 Automatic Operation 64...

Page 4: ... ARC452 Series 170 4 Troubleshooting 173 4 1 Error Codes and Description 173 4 2 Indoor Unit PCB Abnormality 174 4 3 Freeze up Protection Control or High Pressure Control 175 4 4 Fan Motor or Related Abnormality 177 4 5 Thermistor or Related Abnormality Indoor Unit 181 4 6 Front Panel Open Close Fault 182 4 7 Freeze up Protection Control 183 4 8 OL Activation Compressor Overload 185 4 9 Compressor...

Page 5: ...mpressor 245 1 8 Removal of the Four Way Valve Electronic Expansion Valve 247 Part 8 Trial Operation and Field Settings 249 1 Pump Down Operation 250 2 Forced Cooling Operation Mode 251 3 Trial Operation 252 3 1 Indoor Unit ATX ATXS ATXG F C TXG FTXS FDK X S FLK X S FVXS Series 252 3 2 Indoor Unit FFQ Series 254 4 Field Settings 255 4 1 RA Indoor Unit ATX ATXS ATXG F C TXG FTXS FDK X S FLK X S FVX...

Page 6: ...ower 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 shock 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: ...lectrical 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 ...

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: ...revent 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 th...

Page 10: ...re 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 ca...

Page 11: ...SiBE12 933_A 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 12: ... Failure Horizontal Auto Swing Right and Left Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check Comfort Airflow Mode Anticorrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Flexibility Multi Split Split Type Compatible Indoor Unit Indoor Unit Quiet Operation H P C O Compatible Indoor Unit Night Quiet Mode Automatic Flexible Voltage Correspondence Outdoor Un...

Page 13: ...rizontal Auto Swing Right and Left Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check Comfort Airflow Mode Anticorrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Flexibility Multi Split Split Type Compatible Indoor Unit Indoor Unit Quiet Operation H P C O Compatible Indoor Unit Night Quiet Mode Automatic Flexible Voltage Correspondence Outdoor Unit Quiet Op...

Page 14: ... Horizontal Auto Swing Right and Left Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check Comfort Airflow Mode Anticorrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Flexibility Multi Split Split Type Compatible Indoor Unit Indoor Unit Quiet Operation H P C O Compatible Indoor Unit Night Quiet Mode Automatic Flexible Voltage Correspondence Outdoor Unit Quiet...

Page 15: ...mfort Airflow Mode 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 EYE H P C O Compat...

Page 16: ...uto Swing Right and Left Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check Comfort Airflow Mode Anticorrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Flexibility Multi Split Split Type Compatible Indoor Unit Indoor Unit Quiet Operation H P C O Compatible Indoor Unit Night Quiet Mode Automatic Flexible Voltage Correspondence Outdoor Unit Quiet Operation Ma...

Page 17: ...er Failure Horizontal Auto Swing Right and Left Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check Comfort Airflow Mode Anticorrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Flexibility Multi Split Split Type Compatible Indoor Unit Indoor Unit Quiet Operation H P C O Compatible Indoor Unit Night Quiet Mode Automatic Flexible Voltage Correspondence Outdoor ...

Page 18: ...izontal Auto Swing Right and Left Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check Comfort Airflow Mode Anticorrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Flexibility Multi Split Split Type Compatible Indoor Unit Indoor Unit Quiet Operation H P C O Compatible Indoor Unit Night Quiet Mode Automatic Flexible Voltage Correspondence Outdoor Unit Quiet Ope...

Page 19: ...ter Power Failure Horizontal Auto Swing Right and Left Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check Comfort Airflow Mode Anticorrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Flexibility Multi Split Split Type Compatible Indoor Unit Indoor Unit Quiet Operation H P C O Compatible Indoor Unit Night Quiet Mode Automatic Flexible Voltage Correspondence O...

Page 20: ...orizontal Auto Swing Right and Left Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check Comfort Airflow Mode Anticorrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Flexibility Multi Split Split Type Compatible Indoor Unit Indoor Unit Quiet Operation H P C O Compatible Indoor Unit Night Quiet Mode Automatic Flexible Voltage Correspondence Outdoor Unit Quiet O...

Page 21: ...e Horizontal Auto Swing Right and Left Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check Comfort Airflow Mode Anticorrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Flexibility Multi Split Split Type Compatible Indoor Unit Indoor Unit Quiet Operation H P C O Compatible Indoor Unit Night Quiet Mode Automatic Flexible Voltage Correspondence Outdoor Unit Quie...

Page 22: ...mfort Airflow Mode 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 EYE H P C O Compat...

Page 23: ...Failure Horizontal Auto Swing Right and Left Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check Comfort Airflow Mode Anticorrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Flexibility Multi Split Split Type Compatible Indoor Unit Indoor Unit Quiet Operation H P C O Compatible Indoor Unit Night Quiet Mode Automatic Flexible Voltage Correspondence Outdoor Uni...

Page 24: ...SiBE12 933_A 14 Specifications Part 2 Specifications 1 Specifications 15 1 1 Indoor Units Cooling Only 15 1 2 Outdoor Units Cooling Only 21 1 3 Indoor Units Heat Pump 23 1 4 Outdoor Units Heat Pump 33 ...

Page 25: ...h Liquid 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 3D059727 3D059728 Conversion Formulae kcal h kW 860 Btu h kW 3412 cfm m min 35 3 Model FTXS35G2V1B FTXS42G2V1B Rated Capacity 3 5kW Class 4 2kW Class Front Panel Color White White Airflow Rates m min cfm H 10 4 367 9 1 321 M 7 7 270 7 7 273 L 4 8 170 6 3 221 SL 3 5 125 5 4 190 Fan Type...

Page 26: ...ter Removable Washable Mildew Proof Running Current Rated A 0 12 0 12 0 11 Power Consumption Rated W 26 26 26 Power Factor 98 5 94 2 98 5 Temperature Control Microcomputer Control Dimensions H W D mm 295 800 215 Packaged Dimensions H W D mm 274 870 366 Weight kg 10 Gross Weight kg 13 Operation Sound H M L SL dBA 43 39 34 31 Sound Power H dBA 59 Heat Insulation Both Liquid and Gas Pipes Piping Conn...

Page 27: ...Packaged Dimensions H W D mm 266 1 106 751 Weight kg 27 Gross Weight kg 34 Operation Sound H M L SL dBA 37 35 33 31 External Static Pressure Pa 40 Heat Insulation Both Liquid and Gas Pipes Piping Connection Liquid mm φ 6 4 Gas mm φ12 7 Drain mm VP20 O D φ26 I D φ20 Drawing No 3D052134A Model FDKS25EAVMB FDKS35EAVMB Rated Capacity 2 5kW Class 3 5kW Class Front Panel Color Airflow Rates m min cfm H ...

Page 28: ...ht kg 22 22 Operation Sound H M L SL dBA 37 34 31 28 38 35 32 29 Sound Power H dBA 53 54 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 φ18 0 φ18 0 Drawing No 3D050862 3D050864 Model FLKS50BAVMB Rated Capacity 5 0W Class Front Panel Color Almond White Airflow Rates m min cfm H 11 4 402 M 10 0 353 L 8 5 300 SL ...

Page 29: ...ration 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 0 φ 20 0 Drawing No C 3D056295A C 3D056296A Conversion Formulae kcal h kW 860 Btu h kW 3412 cfm m min 35 3 Model FVXS50FV1B Rated Capacity 5 0kW Class Front Panel Color White Airflow Ra...

Page 30: ...9 5 24 5 32 0 25 0 Sound Power H dBA 46 5 49 0 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 3D040444A 3D040442A Model FFQ50B8V1B Rated Capacity 5 0kW Class Decoration Panel Color White Dimensions H W D 55 700 700 Airflow Rates m min cfm H 12 0 424 M L ...

Page 31: ...g Current A 4 6 Dimension H W D mm 550 765 285 Packaged Dimension H W D mm 612 906 364 Weight kg 38 Gross Weight kg 43 Operation Noise Sound Pressure dBA 47 Sound Power dBA 62 Piping Connection Liquid mm φ 6 4 2 Gas mm φ 9 5 2 Drain mm φ18 Heat Insulation Both Liquid Gas Pipes No of Wiring Connection 3 for Power Supply 4 for Interunit Wiring Max Piping Length m 30 for Total of Each Room 20 for One...

Page 32: ... 550 765 285 Packaged Dimensions H W D mm 612 906 364 Weight kg 42 Gross Weight kg 47 Operation Noise Sound Pressure dBA 48 Sound Power dBA 63 Piping Connection Liquid mm φ 6 4 2 Gas mm φ 9 5 1 φ12 7 1 Drain mm φ18 0 Heat Insulation Both Liquid and Gas Pipes No of Wiring Connection 3 for Power Supply 4 for Interunit Wiring Max Interunit Piping Length m 30 for Total of Each Room m 20 for One Room M...

Page 33: ...oss Weight kg 11 11 Operation Sound H M L SL dBA 39 33 25 22 39 34 28 25 40 33 26 22 40 34 28 25 Sound Power H dBA 55 55 56 56 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 φ18 0 φ18 0 Drawing No 3D059076 3D059077 Model ATX35GV1B Cooling Heating Rated Capacity 3 5kW Class Front Panel Color White Airflow Rates...

Page 34: ...nection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ18 0 φ18 0 Drawing No 3D059732 3D059733 Model ATXS35G2V1B ATXS42G2V1B Cooling Heating Cooling Heating Rated Capacity 3 5kW Class 4 2kW Class Front Panel Color White White Airflow Rates m min cfm H 10 4 367 10 6 374 9 1 321 11 2 395 M 7 7 270 8 5 302 7 7 273 9 4 333 L 4 8 170 6 4 226 6 3 221 7 7 271 SL 3 5 125 5 4 191 5 4 190 6 8 240 Fan Ty...

Page 35: ...Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ12 7 φ 9 5 Drain mm φ18 0 φ18 0 Drawing No 3D059736 3D051107 Model ATXG35EV1B ATXG50EV1B Cooling Heating Cooling Heating Rated Capacity 3 5kW Class 5 0kW Class Front Panel Color Mat Crystal White Mat Crystal White Airflow Rates m min cfm H 8 1 285 9 6 338 11 3 398 12 6 444 M 6 5 229 8 2 289 9 1 320 10 6 373 L 4 9 173 6 7 236 7 1 250 8 7 306 SL 4 1 144 5 9 2...

Page 36: ...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 3 5kW Class Front Panel Color Mat Crystal White Mat Crystal Silver Airflow 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 7 236 SL 4 1 144 5 9 2...

Page 37: ...ng Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ12 7 φ12 7 Drain mm φ18 0 φ18 0 Drawing No 3D051105 3D051106 Model FTXS20G2V1B FTXS25G2V1B Cooling Heating Cooling Heating Rated Capacity 2 0kW Class 2 5kW Class Front Panel Color White White Airflow Rates m min cfm H 9 4 332 9 9 350 9 1 321 9 8 346 M 7 4 262 8 2 290 7 1 252 7 9 280 L 5 5 193 6 5 228 5 2 182 6 2 217 SL 4 0 141 5 5 193 3 7 130 5 2 183 Fan...

Page 38: ...g 10 10 Gross Weight kg 13 13 Operation Sound H M L SL dBA 42 34 26 23 42 36 29 26 42 38 33 30 42 38 33 30 Sound Power H dBA 58 58 58 58 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 φ18 0 φ18 0 Drawing No 3D059724 3D059725 Model FTXS50G2V1B Cooling Heating Rated Capacity 5 0kW Class Front Panel Color White A...

Page 39: ...ht kg 27 Gross Weight kg 34 Operation Sound H M L SL dBA 37 35 33 31 37 35 33 31 External Static Pressure Pa 40 Heat Insulation Both Liquid and Gas Pipes Piping Connection Liquid mm φ 6 4 Gas mm φ12 7 Drain mm VP20 O D φ 26 I D φ 20 Drawing No 3D052132 Model FDXS25EAVMB FDXS35EAVMB Cooling Heating Cooling Heating Rated Capacity 2 5kW Class 3 5kW Class Front Panel Color Airflow Rates m min cfm H 8 ...

Page 40: ...Gross Weight kg 22 22 Operation Sound H M L SL dBA 37 34 31 28 37 34 31 29 38 35 32 29 39 36 33 30 Sound Power H dBA 53 54 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 φ18 0 φ18 0 Drawing No 3D050866 3D050868 Model FLXS50BAVMB Cooling Heating Rated Capacity 5 0kW Class Front Panel Color Almond White Airflow ...

Page 41: ... 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 C 3D056274A C 3D056275A Model FVXS50FV1B Cooling Heating Rated Capacity 5 0kW Class Front Panel Color White Airflow Rates m min ...

Page 42: ... L dBA 29 5 24 5 29 5 24 5 32 0 25 0 32 0 25 0 Sound Power H dBA 46 5 49 0 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 3D040445 3D040443 Model FFQ50B8V1B Cooling Heating Rated Capacity 5 0kW Class Decoration Panel Color White Dimensions H W D 55 700 7...

Page 43: ... Current A 4 6 Dimension H W D mm 550 765 285 Packaged Dimension H W D mm 612 906 364 Weight kg 38 Gross Weight kg 43 Operation Noise Sound Pressure dBA 47 48 Sound Power dBA 62 Piping Connection Liquid mm φ 6 4 2 Gas mm φ 9 5 2 Drain mm φ18 Heat Insulation Both Liquid Gas Pipes No of Wiring Connection 3 for Power Supply 4 for Interunit Wiring Max Piping Length m 30 for Total of Each Room 20 for O...

Page 44: ...m 550 765 285 Packaged Dimensions H W D mm 612 906 364 Weight kg 42 Gross Weight kg 47 Operation Noise Sound Pressure dBA 48 50 Sound Power dBA 63 Piping Connection Liquid mm φ 6 4 2 Gas mm φ 9 5 1 φ12 7 1 Drain mm φ18 0 Heat Insulation Both Liquid and Gas Pipes No of Wiring Connection 3 for Power Supply 4 for Interunit Wiring Max Interunit Piping Length m 30 for Total of Each Room m 20 for One Ro...

Page 45: ...d Circuit Board Connector Wiring Diagram 1 Printed Circuit Board Connector Wiring Diagram 36 1 1 Wall Mounted Type 36 1 2 Duct Connected Type 43 1 3 Floor Ceiling Suspended Dual Type 45 1 4 Floor Standing Type 48 1 5 Ceiling Mounted Cassette Type 600 600 50 1 6 Outdoor Units 53 ...

Page 46: ...splay PCB 3 S32 Connector for heat exchanger thermistor 4 S200 Connector for fan motor 5 S403 Connector for adaptor for wired remote controller optional accessory 1 S27 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 restart Refer to page 255 for detail 3 LED A LED for service moni...

Page 47: ...d Circuit Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 37 PCB Detail PCB 1 Control PCB PCB 2 Display PCB 2P206569 FU1 S200 S32 S26 S6 LED A JA JC JB S403 V1 LED1 S27 LED2 SW1 3P206563 RTH1 ...

Page 48: ... heat exchanger thermistor 5 S41 Connector for swing motor 6 S46 Connector for display PCB 7 S47 Connector for signal receiver PCB 1 S48 Connector for control PCB 1 S49 Connector for control PCB 1 S26 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 restart Refer to page 255 for det...

Page 49: ...SiBE12 933_A Printed Circuit Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 39 PCB Detail PCB 1 Control PCB 2P206687 V1 FU1 LED A S32 S1 S41 S46 S25 S21 JB JA JC S47 ...

Page 50: ... Connector Wiring Diagram SiBE12 933_A 40 Printed Circuit Board Connector Wiring Diagram PCB 4 INTELLIGENT EYE sensor PCB PCB 2 Signal Receiver PCB PCB 3 Display PCB R8246 S48 R8247 RTH1 SW1 LED3 LED2 LED1 S49 3EB86013 S26 ...

Page 51: ... 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 restart Refer to...

Page 52: ...33_A 42 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 R4991 S1 S49 S41 S51 JB JA JC LED A S21 S32 S36 S46 V1 FU1 R4992 RTH1 SW1 LED2 LED3 LED4 S47 R4988 S36 ...

Page 53: ...d control HA 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 255 for more detail 3 LED A LED for service monitor green 4 FU1 F1U Fuse 3 15A 1 SW1 S1W Forced cooling operation ON OFF switch 2...

Page 54: ...tor Wiring Diagram SiBE12 933_A 44 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB 1 Control PCB PCB 2 Display PCB 2P131149 FU1 S1 V1 S7 S26 S32 JC JB JA LED A S21 C1 C3 C2 WLU PbF 2P084375 S1 LED3 LED2 RTH1 LED1 SW1 ...

Page 55: ...r 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 fun...

Page 56: ...ng Diagram SiBE12 933_A 46 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB 1 Control PCB PCB 2 Power Supply PCB 2P084352 Pb Free SW2 S7 S6 12V Check S24 JC JB JA 5V Check S37 GND S32 S26 LED A S21 2P084361 S36 Pb Free FU1 V1 ...

Page 57: ...rd Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 47 PCB 3 Display PCB PCB 4 Signal Receiver PCB Pb Free LED3 LED2 LED1 S25 PbF PHOTO 2P084377 1 SW1 I RTH WLU 3 C1 C2 C3 EX511 REV 12 S27 R6057 SW1 S31 RTH S27 ...

Page 58: ...xchanger thermistor 5 S41 Connector for lower air outlet motor 6 S42 Connector for swing motor 7 S46 Connector for display PCB 8 S48 Connector for sensor PCB 1 S27 Connector for control PCB 1 S47 Connector for control PCB 1 RTH2 R1T Room temperature sensor 1 V2 Varistor 2 JA Address setting jumper JB Fan speed setting when compressor is OFF on thermostat JC Power failure recovery function Refer to...

Page 59: ...rcuit Board Connector Wiring Diagram 49 PCB Detail PCB 1 Sensor PCB PCB 2 Control PCB PCB 3 Service PCB PCB 4 Display PCB LED3 does not function 3P191450 S49 RTH2 2P191446 V2 FU1 S1 LED A S21 S41 S42 S26 S46 S48 S32 JC JA JB 3P191448 SW4 S27 SW2 3P191447 LED1 SW1 LED2 S47 ...

Page 60: ...ermistor 6 X20A Connector for fan motor 7 X24A Connector for signal receiver PCB when the wireless remote controller is used 8 X25A Connector for drain pump motor 9 X27A Connector for terminal strip for inter unit wiring 10 X33A Optional connector for wiring adaptor PCB 11 X35A Optional connector for group control adaptor 12 X36A Connector for swing motor 13 X40A Optional connector for ON OFF inpu...

Page 61: ...tor Wiring Diagram Printed Circuit Board Connector Wiring Diagram 51 PCB Detail PCB 1 Control PCB A1P 2P095006 X25A X20A X18A X27A X11A X10A X33A Capacity setting adaptor X19A X60A X61A X36A X40A HAP Service monitor LED X17A X15A X24A X35A X5A ...

Page 62: ...ector Wiring Diagram SiBE12 933_A 52 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB 2 Signal Receiver PCB A3P PCB 3 Display PCB A4P LED5 and LED6 do not function R4873 SS2 X1A X2A R4874 LED4 LED3 LED2 LED1 BS1 X1A ...

Page 63: ... S45 Connector for terminal strip thermal fuse 5 S70 Connector for fan motors 6 S80 Connector for four way valve coil 7 S90 Connector for thermistors outdoor air heat exchanger and discharge pipe 8 S91 Connector for thermistors gas pipe 9 S92 Connector for thermistors liquid pipe 1 LED A Service Monitor LED Green 2 FU1 FU2 Fuse 3 15A 250V 3 FU3 Fuse 40 class 20A 50 class 30A 4 DB1 DB2 Diode bridge...

Page 64: ...cuit Board Connector Wiring Diagram PCB Detail PCB 1 Control PCB 40 class PCB 1 Control PCB 50 class 2P190760 FU3 FU1 FU2 DB2 DB1 LED A S80 S21 S20 S91 S90 S92 S40 S45 S70 J3 J4 V4 V3 V1 2P197402 FU3 FU3 FU1 FU2 V4 V3 V1 LED A S80 S21 S20 S91 S90 S92 S40 S45 S70 J3 J4 DB2 DB1 ...

Page 65: ...YE FTXS 68 1 12 INTELLIGENT EYE ATXS FTXG ATXG CTXG 70 1 13 HOME LEAVE Operation 72 1 14 Inverter POWERFUL Operation 73 1 15 Other Functions 74 2 Function of Thermistor 76 2 1 Heat Pump Model 76 2 2 Cooling Only Model 78 3 Control Specification 79 3 1 Mode Hierarchy 79 3 2 Frequency Control 80 3 3 Controls at Mode Changing Start up 83 3 4 Discharge Pipe Temperature Control 85 3 5 Input Current Con...

Page 66: ...ation The target frequency is set by the following 2 parameters coming from the operating indoor unit The load condition of the operating indoor unit The difference between the room thermistor temperature and the target temperature Additional Control Parameters The target frequency is adapted by additional parameters in the following cases Frequency restrictions Initial settings Forced cooling ope...

Page 67: ... 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 Operation For more information refer to Forced cooling operation mode on page 251 50 Hz 60 Hz Refrigerant circulation rate high high f low f freq variable Refrigerant circulation rate low high speed low speed R...

Page 68: ...ring cooling Dry mode the flap retracts into the indoor unit Then cool air can be blown far and pervaded all over the room Wide Angle Louvers The louvres made of elastic synthetic resin provide a wide range of airflow that guarantees a comfortable air distribution Auto Swing In case of F A TXS20 50G The following table explains the auto swing process for heating cooling dry and fan In case of ATX2...

Page 69: ...ntrolled 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 H tap same as AUTOMATIC Heating LL tap H tap The latest command has the priority between POWERFUL and COMFORT AIRFLOW 3 D Airflow F A TXS20 50G F C A TXG25 50E Alternative repetition of vertical and horizontal swing motions enables uniform air condit...

Page 70: ...te until the flap angle exceeds certain level Control Flow Timing Chart 1 Opening the front panel fully Start Running 2 Output of the D signal after the front panel starts moving 4 Making the fan rotate when the flap passes over the fan banned area 3 Opening the flap fully R14041 Fully close OFF Start ON Flap Under running control Under operation mode control Under operation mode control Fan D Ful...

Page 71: ...peed Cooling The fan keeps rotating at the set tap Heating The fan keeps rotating at LLL tap FTXS ATXS and FVXS series or stops the other models In case of ATX20 35G The airflow rate is automatically controlled within this range when the FAN setting button is set to automatic Note 1 During POWERFUL operation fan operate H tap 80 rpm 2 Fan stops during defrost operation 3 The airconditioner does no...

Page 72: ...atic Airflow Control for Cooling The following drawing explains the principle of fan speed control for cooling reference In case of ATX20 35G R4594 fan speed 1 5 C 0 5 C Thermostat setting temperature DC motor Rotation speed control AC motor Phase control M M ML ML L 2 C 1 C Difference between room and set temperature R8433 fan speed 1 5 C Thermostat setting temperature Difference between room and...

Page 73: ...emperature at start up and the target temperature 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 thermistor temperature at start up Target temperature X Thermostat OFF point Y Thermostat ON point Z 24ºC or more Room thermistor temperature at start up X 2 5ºC X 0 5ºC or ...

Page 74: ...C 2 Main unit setting temperature equals remote controller setting temperature 3 Operation ON OFF point and mode switching point are as follows 1 Heating Cooling switching point Room temperature Main unit setting temperature 3 0 deg 2 Cooling Heating switching point Room temperature Main unit setting temperature 2 5 deg 3 Thermostat ON OFF point is the same as the ON OFF point of cooling or heatin...

Page 75: ...he 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 R4668 Room temperature set point Cooling 0 5 C Dry 0 5 C Cooling 2 0 C Dry 2 5 2 0 C...

Page 76: ...ves electricity Cooling Operation Wall Mounted Type Floor Standing Type Duct Connected Type Floor Ceiling Suspended Dual Type Heating Operation 0 5 C 1 hour Timer operation Night Set Circuit ON 0 5ºC temperature shift Temperature setting 0 5ºC Temperature setting Operation stops at the set hours 0 5 C 0 5 C 1 hour Timer operation Night Set Circuit ON 0 5ºC temperature shift Operation stops at the ...

Page 77: ...the ECONO button ECONO Mode is available for all wall mounted models Details ECONO mode can be activated while the unit is running The remote controller can send the ECONO command when the unit is in COOL HEAT DRY or AUTO operation When the ECONO command is valid the input current is under reducing control Also the upper limit of frequency is restricted R8461 Power consumption Normal operation Max...

Page 78: ...n indoor unit carries out a sampling every 20 msec and if it detects 10 cycles of the wave in one second in total corresponding to 20 msec 10 200 msec and when the ON signal continues 3 seconds it judges human is in the room as the motion signal is ON INTELLIGENT EYE sensor is divided into 2 areas and detects humans in each area R9301 sampling 20msec Sensor output Detection signal from the sensor ...

Page 79: ...the airflow direction to area B left side 2 Detection signal ON in area A Shift the airflow direction to area B left side 3 Detection signal ON in area B Shift the airflow direction to area A right side 4 Detection signal OFF in both area A and B No change When the detection signal OFF in both area A and B the unit starts energy saving operation Others The dry operation can not command the setting...

Page 80: ...en a microcomputer does not have a signal from the sensor in 20 minutes it judges that nobody is in the room and operating the unit in temperature shifted 2 C from the set temperature Cooling Dry 2 C higher Heating 2 C lower and Auto according to the operation mode at that time 1 In case of Fan mode the fan speed reduces by 50 rpm R2821 sampling 20msec Sensor output Human motion Human detection si...

Page 81: ...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 82: ...ction 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 unit is operated according to the set temperature and air volume for HOME LEAVE which were pre set in the memory of the remote controller The LED Red of indoor unit representing HOME...

Page 83: ...20 50G Ex POWERFUL operation in cooling mode Refer to Fan Speed Control on page 61 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 Set temp ...

Page 84: ... unit does not activate with this button In case of F A TXS20 50G Forced operation mode Forced operation mode can be started by pressing the ON OFF button for 5 to 9 seconds while the unit is not operating Refer to Forced cooling operation mode on page 251 for detail Note When the ON OFF button is pressed for 10 seconds or more the forced operation is stopped 1 15 4 Titanium Apatite Photocatalytic...

Page 85: ...reventative to make the filter virtually immune to mould 1 15 8 Auto restart Function Even if a power failure including one for just a moment occurs during the operation the operation restarts in the condition before power failure automatically when power is restored Note It takes 3 minutes to restart the operation because the 3 minute standby function is activated 1 15 9 WEEKLY TIMER Operation Fo...

Page 86: ...utdoor heat exchanger temperature the discharge pipe thermistor is judged as disconnected 3 The outdoor heat exchanger thermistor is used for high pressure protection during cooling operation 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 compres...

Page 87: ...ction of the discharge pipe thermistor when heating When the discharge pipe temperature become lower than the maximum temperature of 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 When only one indoor unit is operating the indoor heat exchanger thermistor is us...

Page 88: ...ing frequency drops or the operation halts 2 The discharge pipe thermistor is used for detecting disconnection of the discharge thermistor C Gas Pipe Thermistor 1 In cooling the gas pipe thermistors are used for gas pipe isothermal control The system controls electronic expansion valve opening so that gas pipe temperature in each room becomes equal D Indoor Heat Exchanger Thermistor 1 The indoor h...

Page 89: ...conflict with each other The system follows the mode determined first First push first set For the rooms set with different mode select standby mode Operation lamp flashes R2829 Air conditioner control mode Forced operating mode Forced cooling for Pump Down Operation Normal operating mode Cooling Heating Defrosting Stop mode except for cooling heating modes by indoor command Preheat operation Duri...

Page 90: ...pper limit frequency Set a minimum value as an upper limit frequency among the frequency upper limits of the following functions Compressor protection input current discharge pipe temperature low Hz high pressure limit heating peak cut 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 fun...

Page 91: ... unit Th OFF Thermostat OFF Indoor Unit Capacity S value The capacity of the indoor unit is a S value and is used for frequency command Frequency Initial Setting Outline When starting the compressor or when conditions are varied due to the change of the operating room the frequency must be initialized according to the total of a maximum D value of each room and a total value of Q ΣQ of the operati...

Page 92: ... drooping Frequency management is carried out only when the frequency droops For limiting lower limit Frequency management is carried out only when the frequency rises 5 Upper and lower limit of frequency by PI control 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 l...

Page 93: ...ing 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 seconds 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 for activating ...

Page 94: ...rotection Function When turning the compressor from OFF to ON the upper limit of frequency is set as follows The function is not used when defrosting 40 class 50 class Unit A 62 55 Hz B 72 70 C 90 85 D 140 150 seconds E 180 180 F 300 300 sec Time R14042 Hz Frequency C B A D E F ...

Page 95: ...zone the frequency is 2 Hz drooping Repeating the above drooping continues until the current rushes on the drooping zone without change In the keep zone the frequency limit remains In the return reset zone the frequency limit is cancelled Limitation of current drooping and stop value according to the outdoor air temperature 1 In case the operation mode is cooling The current droops when outdoor ai...

Page 96: ... Heat Pump Only During heating operation the signals being sent from 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 minutes from operation start and A seconds from changing numb...

Page 97: ...utdoor air temperature is 18 37 C the fan tap must be set to M When the outdoor air temperature is lower than 18 C the fan tap must be set to L 2 When Heating Operation Only for heat pump model When the outdoor air temperature is lower than 4 C the fan tap must be set to H When the outdoor air temperature is 4 12 C the fan tap must be set to M When the outdoor air temperature is higher than 12 C t...

Page 98: ... 30 minutes of accumulated time pass since the start of the operation or ending the previous defrosting Conditions for Canceling Defrost The target heat exchanger temperature as the canceling condition is selected in the range of E C according to the outdoor temperature Frequency Compressor Four way valve Fan ON OFF ON OFF ON OFF 0 Hz A Hz C pulse 5 sec 450 pulse 350 pulse 450 pulse Initial openin...

Page 99: ...h all ports connected and all rooms being air conditioned 4 Dew prevention function for indoor rotor Open Control 1 Electronic expansion valve control when starting operation 2 Electronic expansion valve control when frequency changed 3 Electronic expansion valve control for defrosting only for heat pump model 4 Electronic expansion valve control for oil recovery 5 Electronic expansion valve contr...

Page 100: ...when starting Control of target discharge pipe temperature Control when the operating room is changed Control of target discharge pipe temperature Pressure equalizing control Open control when starting Control of target discharge pipe temperature Control when the operating room is changed Control of target discharge pipe temperature Defrost control FD 1 only for heat pump model Pressure equalizing...

Page 101: ...nger of the rooms and compensate the electronic expansion valve opening so that the SC of each room becomes the target SC When the actual SC is target SC open the electronic expansion valve of the room When the actual SC is target SC close the electronic expansion valve of the room Detail Start Functioning Conditions After finishing the open control 810 seconds after the beginning of the operation...

Page 102: ...valve opens and the refrigerant runs to the low pressure side This procedure lowers the discharge pipe temperature 3 11 10 Oil Recovery Function Outline The electronic expansion valve opening in the cooling stopped room must be set as to open for a certain time at a specified interval so that the oil in the cooling stopped room may not be accumulated Detail During cooling operation every 1 hour co...

Page 103: ...sor 3 12 3 Refrigerant Shortage 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 refrigerant shortage In addition to such conventional function if the discharge pipe temperature is higher than the target discharge pipe temperature and the electronic expansion valve is fully open 450 pulses more ...

Page 104: ...rtage 3 12 4 Preventing Indoor Freezing During cooling if the heat exchanger temperature in the operation stopped room becomes below the specified temperature for the specified time open the electronic expansion valve in the operation stopped room as specified and carry out the fully closed operation After this if freezing abnormality occurs more than specified time the system shall be down as the...

Page 105: ...Operation Manual 95 Part 5 Operation Manual 1 System Configuration 96 1 1 Operation Instructions 96 2 Instruction 97 2 1 ATXS ATX FTXG CTXG ATXG FDK X S FLK X S Series 97 2 2 FTXS FVXS Series 128 2 3 FFQ Series 152 ...

Page 106: ... 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 a...

Page 107: ... AIRFLOW Operation 113 113 113 POWERFUL Operation 1 114 114 114 OUTDOOR UNIT QUIET Operation 1 115 115 ECONO Operation 116 117 HOME LEAVE Operation 2 INTELLIGENT EYE Operation 120 122 3 TIMER Operation 1 124 124 124 Note for Multi System 126 126 126 Drawing No 3P207037 2C 3P208145 2E 3P194513 2C 3P194513 1C Model Series Duct Connected Type Floor Ceiling Suspended Dual Type FDK X S25 35EA FDK X S50...

Page 108: ...peration 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 airflow rate setting 10 SWING button Adjusting the Airflow Direction 11 SWING button Louvers vertical blades 12 COMFORT SENSOR button COMFORT AIRFLOW and INTELLIGENT EYE operation 13 ON TIMER button 14 OFF T...

Page 109: ...utton 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 FAN setting button It selects the airflow rate setting 9 SWING button Adjusting the Airflow Direction 10 COMFORT AIRFLOW button COMFORT AIRFLOW operation 11 ON TIMER button 12 OFF TIMER button 13 TIMER Setting button It changes the time setting 1...

Page 110: ...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 Flap Horizontal blade 11 SWING button Louvers Vertical blades 12 COMFORT AIRFLOW mode button 13 ON TIMER button 14 OFF TIMER butt...

Page 111: ...anges 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 CANCEL...

Page 112: ...rature 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 SWING button 11 ON TIMER button 12 OFF TIMER button 13 TIMER Setting button It changes the time setting 14 TIMER CANCE...

Page 113: ...button and select 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 varia...

Page 114: ...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 A pinging sound may be heard during defrosting operation which however does not mean that the air conditioner has failures Note on COOL operation This air conditioner cools the room by blowing the hot air in the room outside so if the outside temper...

Page 115: ...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 flaps 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...

Page 116: ...hich 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 angles of the flaps and louvers If you attempt to move it forcibly with hand when it is swinging the mechanism may be broken Always use a remote controller to adjust the louvers a...

Page 117: ...flaps have reached the desired position press SWING button once more The flaps 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 w...

Page 118: ... 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 If the air condition...

Page 119: ...ition 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 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...

Page 120: ...e 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 The air direction is as shown in the figure at right ATTENTION Always use a remote c...

Page 121: ...n adjust the air flow direction 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 1 2 ...

Page 122: ...lected 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 123: ...ration To cancel COMFORT AIRFLOW operation 2 Press COMFORT SENSOR button Press the button to select Blank Notes on COMFORT AIRFLOW Operation The flap position will change preventing air from blowing directly on the occupants of the room POWERFUL operation and COMFORT AIRFLOW operation cannot be used at the same time The volume of air will be set to AUTO If the upward and downward airflow direction...

Page 124: ...the LCD NOTE Notes on POWERFUL operation POWERFUL Operation cannot be used together with ECONO QUIET or COMFORT 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 ...

Page 125: ...ncel OUTDOOR UNIT QUIET operation 2 Press QUIET button again disappears from the LCD NOTE Note on OUTDOOR UNIT QUIET operation If using a multi system this function will work only when the OUTDOOR UNIT QUIET operation is set on all operated indoor units However if using priority room setting see Note for multi system This function is available in COOL HEAT and AUTO modes This is not available in F...

Page 126: ...ONO Operation can only be set when the unit is running Pressing the OFF button causes the setting 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 and ECONO operation cannot be used at the same tim...

Page 127: ...n 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 Priority ...

Page 128: ...and air flow 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 control display 2 Adjust the set temperature with or as you like 3 Adjust the air flow rate with FAN setting button as yo...

Page 129: ...ings please refer to the Before using HOME LEAVE operation section above HOME LEAVE operation is only available in COOL and HEAT mode Cannot be used in AUTO DRY and FAN mode HOME LEAVE operation runs in accordance with the previous operation mode COOL or HEAT before using HOME LEAVE operation HOME LEAVE operation and POWERFUL operation cannot be used at the same time Last button that was pressed h...

Page 130: ...ns the air conditioner will be in COMFORT AIRFLOW operation combined with INTELLIGENT EYE operation To cancel the INTELLIGENT EYE operation 2 Press COMFORT SENSOR button Press the button to select Blank EX 1 2 Blank Normal operation The air conditioner is in normal operation while the sensor is detecting the movement of people 20 min after start energy saving operation The set temperature is shift...

Page 131: ...ill not go on during use of INTELLIGENT EYE operation To combine COMFORT AIRFLOW Operation and INTELLIGENT EYE Operation 1 Press COMFORT SENSOR button and select on the LCD Each time the COMFORT SENSOR button is pressed a different setting option is displayed on the LCD 2 Press COMFORT SENSOR button Press the button to select Blank The air conditioner can go into operation with the COMFORT AIRFLOW...

Page 132: ...ion 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 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 When somebody in the room Back to normal operation The INTELLIGENT EYE lamp lights up Somebody b...

Page 133: ...ation 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 CAUTION Do not place large objects near the sensor Also keep heating units or humidifiers outs...

Page 134: ... time setting by 10 minutes Holding down either button changes the set ting 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 ar...

Page 135: ...es 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 repla...

Page 136: ...ation 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 tempera...

Page 137: ...ooms 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 ...

Page 138: ...ad Before Operation Remote Controller 129 130 Operation AUTO DRY COOL HEAT FAN Operation 1 131 131 Adjusting the Airflow Direction 133 135 Comfort Airflow and INTELLIGENT EYE Operation 137 POWERFUL Operation 1 140 140 OUTDOOR UNIT QUIET Operation 1 141 141 ECONO Operation 1 142 142 HOME LEAVE Operation INTELLIGENT EYE Operation TIMER Operation 1 143 143 WEEKLY TIMER Operation 1 145 145 Note for Mu...

Page 139: ... once to start operation Press once again to stop it 6 TEMPERATURE adjustment buttons It changes the temperature setting 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 QUIET button OUTDOOR UNIT QUIET operation 9 ECONO button ECONO operation 10 SWING button Horizontal blades flaps 11 SWING button Vertical blades louvers 12 COMFORT SENSOR button COMFORT AIRFLOW and INT...

Page 140: ...N OFF button Press this button once to start operation Press once again to stop it 6 TEMPERATURE adjustment buttons It changes the temperature setting 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 QUIET button OUTDOOR UNIT QUIET operation 9 ECONO button ECONO operation 10 SWING button Adjusting the Airflow Direction 11 WEEKLY PROGRAM COPY BACK NEXT button WEEKLY TIM...

Page 141: ...a operation mode Each pressing of the button advances the mode setting in sequence AUTO DRY COOL HEAT FAN Cooling only model Heat pump model 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 set...

Page 142: ...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 A pinging sound may be heard during defrosting operation which however does not mean that the air conditioner has failures Note on COOL operation This air conditioner cools the room by blowing the hot air in the room outside so if the outside temper...

Page 143: ...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 flaps 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...

Page 144: ... 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 angles of the flaps and louvers If you attempt to move it forcibly with hand when it is swinging the mechanism ma...

Page 145: ...isappears 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 flap by hand tu...

Page 146: ...oled Air is blown from the upper and lower air outlets for high speed cooling during COOL mode and for filling the room with warm air during HEAT mode HEAT mode At times other than below Normal time At start or when air temperature is low So that air does not come into direct contact with people Air is blown upper air outlet During Dry mode so that cold air does not come into direct contact with p...

Page 147: ...ing sequence Each time the COMFORT SENSOR button is pressed a different setting option is displayed on the LCD To cancel operation 2 Press COMFORT SENSOR button Press the button to select Blank Display Operation mode Explanation COMFORT AIRFLOW The flaps will adjust the airflow direction upward while cooling and adjust the airflow direction downward while heating INTELLIGENT EYE The sensors will d...

Page 148: ... that the airflow will be directed upward The flaps will move downward while heating so that the airflow will be directed downward Notes on INTELLIGENT EYE Operation The INTELLIGENT EYE sensor according to the following situations Cooling operation Heating operation Vertical angle 90 Side View Horizontal angle 110 Top View 5m 90 55 55 5m Area 1 Area 2 Area 1 Area 2 A person is detected in area 1 A...

Page 149: ...flow towards the people 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 passersby temperature range etc The sensor also mistakenly detects pets sunlight fluttering curtains and light reflected off of mirrors as passersby NIGHT SET MODE will not go on during use of INTELLIGENT E...

Page 150: ...the LCD NOTE Notes on POWERFUL operation POWERFUL Operation cannot be used together with ECONO QUIET or COMFORT 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 ...

Page 151: ...ncel OUTDOOR UNIT QUIET operation 2 Press QUIET button again disappears from the LCD NOTE Note on OUTDOOR UNIT QUIET operation If using a multi system this function will work only when the OUTDOOR UNIT QUIET operation is set on all operated indoor units However if using priority room setting see Note for Multi System This function is available in COOL HEAT and AUTO modes This is not available in F...

Page 152: ...ditioner in ECONO mode vary with the connecting outdoor unit NOTE ECONO Operation can only be set when the unit is running Pressing the OFF button causes the setting 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 HE...

Page 153: ...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 op...

Page 154: ...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 replacin...

Page 155: ... settings for example makes it possible to schedule operating mode and set temperature changes Furthermore by using OFF OFF OFF OFF settings only the turn OFF time of each day can be set This will turn OFF the air conditioner automatically if the user forgets to turn it OFF Monday Tuesday to Friday Saturday Sunday Make timer settings up to programs 1 4 Use the copy mode to make settings for Tuesda...

Page 156: ...N blink 4 Press SELECT button to select the desired mode and ON or OFF will flash Go to STEP 9 if no setting is selected 5 Press NEXT button The weekly mode will be set and 6 00 blink 6 Press SELECT button to select the desired time The time can be set between 0 00 and 23 50 in 10 minute intervals Press BACK button to return to the mode setting Go to STEP 9 if OFF is selected at STEP 4 7 Press NEX...

Page 157: ...than the above are based on the remote controller settings just before the operation Both WEEKLY TIMER and ON OFF timer cannot be used at the same time The ON OFF timer has priority if it is set while WEEKLY TIMER is still active WEEKLY TIMER is activated after the reserved ON OFF timer is completed The WEEKLY button activates or deactivates the reservation To set WEEKLY TIMER press button and mak...

Page 158: ...d to the selected day of the week The whole reservation of the selected day of the week will be copied To continue copying the settings to other days of the week repeat STEP 4 and STEP 5 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 completed Monday Program 1 ON Program 2 ...

Page 159: ... 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 used while confirming or setting reservations 5 Select the day of the week to be canceled with the SELECT button 6 Hold...

Page 160: ...n 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 temperature...

Page 161: ...ooms 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 ...

Page 162: ...Instruction SiBE12 933_A 152 Operation Manual 2 3 FFQ Series 1 1 3 2 4 TEST C hr hr TEST NOT AVAILABLE L H 2 10 11 3 1 4 5 6 7 8 14 15 16 17 18 19 20 21 22 12 9 13 a b c d e e f g h i k e f l d j C hr H ...

Page 163: ...ion manual is for the following systems with standard control Before initiating operation contact your Daikin dealer for the operation that corresponds to your sysem Pair system Multi system NOTE If the unit you purchased is controlled by a wireless remote controller also refer to the wireless remote controller s operation manual If your installation has a customized control system ask your Daikin...

Page 164: ...llow a child to mount on the outdoor unit or avoid placing any object on it Falling or tumbling may result in injury We recommend that you read this instruction manual carefully before use to gain full advantage of the function of the air conditioner and to avoid malfunction due to erroneous handling This air conditioner comes under the term appliances not accessible to the general public The prec...

Page 165: ... is much spray of oil and vapor such as a cookery etc g Where there are machines generating electromagnetic waves h Filled with acid and or alkaline steam or vapor Is a snow protection measure taken For details consult your dealer Regarding wiring All wiring must be performed by an authorized electrician To do wiring ask your dealer Never do it by yourself Make sure that a separate power supply ci...

Page 166: ...s display shows the system is UNDER CENTRALIZED CONTROL 18 TEMPERATURE SETTING BUTTON 4 DISPLAY VENTILATION AIR CLEANING Use this button for SETTING TEMPERATURE This display shows that the total heat exchange and the air cleaning unit are in operation These are optional accessories 19 FILTER SIGN RESET BUTTON Refer to HOW TO CLEAN THE AIR FILTER 20 FAN SPEED CONTROL BUTTON 5 DISPLAY OPERATION MODE...

Page 167: ...ge 1 For cooling only type COOLING FAN and DRY operation are able to select ADJUSTMENT For programming TEMPERATURE FAN SPEED and AIR FLOW DIRECTION follow the procedure shown below TEMPERATURE SETTING Press TEMPERATURE SETTING button and program the setting temperature Each time this button is pressed setting temperature rises 1 C Each time this button is pressed setting temperature lowers 1 C The...

Page 168: ...cancel programming The display vanishes Operation condition When starting operation When room temperature is higher than the set temperature At defrost operation Air is blown horizontally to prevent the cool air from being blown directly onto anyone in the room Operation mode includes automatic operation PROGRAM TIMER OPERATION Operate in the following order The timer is operated in the following ...

Page 169: ...an 50 C as doing so may result in discoloration and or deformation Do not expose it to fire as doing so may result in burning 4 Fix the air filter 1 Hook the air filter to a protrusion on the suction grille 2 Push the lower part of the air filter onto the protrusion at the lower part of the suction grille and fix the air filter there Fig 3 8 MAINTENANCE FOR SERVICE PERSONNEL ONLY A QUALIFIED SERVI...

Page 170: ...em No 2 7 Shut the suction grille Refer to item No 1 START UP AFTER A LONG STOP Confirm the following Check that the air inlet and outlet are not blocked Remove any obstacle Check if the earth is connected Might there be a broken wire 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...

Page 171: ...eration that corresponds to your system If the total capacity of operating indoor units exceeds the limit the indoor unit will assume the STANDBY state FAN and AIR FLOW DIRECTION will be left as set This only applies to cooling only type If another indoor unit commences a HEATING operation after this indoor unit is running in COOLING mode this indoor unit may switch to DRY operation fan on low air...

Page 172: ...r to MAINTENANCE 3 The system operates but it does not sufficiently cool or heat If the air inlet or outlet of the indoor or the outdoor unit is blocked with obstacles Remove the obstacle and make it well ventilated If the air filter is clogged Ask a qualified service person to clean the air filters Refer to MAINTENANCE If the set temperature is not proper Refer to ADJUSTMENT If the FAN SPEED butt...

Page 173: ...9 Compressor Lock 186 4 10 DC Fan Lock 187 4 11 Input Overcurrent Detection 188 4 12 Discharge Pipe Temperature Control 190 4 13 High Pressure Control in Cooling 191 4 14 Compressor Sensor System Abnormality 193 4 15 Position Sensor Abnormality 194 4 16 DC Voltage DC Current Sensor Abnormality 196 4 17 Thermistor or Related Abnormality Outdoor Unit 197 4 18 Electrical Box Temperature Rise 199 4 19...

Page 174: ...ccurs between the indoor and outdoor units In either case conduct the diagnostic procedure described in the following pages Location of Operation Lamp In case of In case of F A TXS 20 50 G Series ATX 20 35 G Series In case of F C A TXG 25 50 E Series In case of duct connected type In case of floor ceiling suspended dual type In case of floor standing type R8228 OPERATION lamp green ON OFF R9302 OP...

Page 175: ...n mode to Cool or Heat and check again 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 is a green LED on the PCB The flashing green...

Page 176: ...eat pump model and cooling operation cannot be used when the outdoor air temperature is below 10 C Diagnosis with remote controller indication 173 Equipment operates but does not cool or does not heat only for heat pump model Check for wiring and piping errors in the indoor and outdoor units connection wires and pipes Conduct the wiring piping error check described on the product diagnosis namepla...

Page 177: ...g codes 2 To return to the normal mode hold the timer cancel button down for 5 seconds When the remote controller is left untouched for 60 seconds it also returns to the normal mode TIMER ON CANCEL OFF TIMER CANCEL button R11506 ARC433 Series No Code No Code No Code 1 00 12 F6 23 A1 2 U4 13 C7 24 E1 3 L5 14 A3 25 UA 4 E6 15 H8 26 UH 5 H6 16 H9 27 P4 6 H0 17 C9 28 L3 7 A6 18 C4 29 L4 8 E7 19 C5 30 ...

Page 178: ...l you hear the sound of beep or pi pi 3 Diagnose by the sound pi The figure of the ten s place does not accord with the error code pi pi The figure of the ten s place accords with the error code but the one s not beep The both figures of the ten s and one s place accord with the error code The figures indicated when you hear the beep sound are error code Refer to page 173 4 Press the MODE button T...

Page 179: ... both figures of the ten s and one s place accord with the error code 7 Determine the error code The figures indicated when you hear the beep sound are error code Error codes and description Refer to page 173 8 Press the MODE button to exit from the diagnosis mode The display means the trial operation mode Refer to page 252 for trial operation 9 Press the ON OFF button twice to return to the norma...

Page 180: ...elow Note 1 A short beep pi and two consecutive beeps pi pi indicate non corresponding codes 2 To return to the normal mode hold the timer cancel button down for 5 seconds When the remote controller is left untouched for 60 seconds it also returns to the normal mode 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...

Page 181: ... the sound of beep or pi pi 3 Diagnose by the sound pi The figure of the ten s place does not accord with the error code pi pi The figure of the ten s place accords with the error code but the one s not beep The both figures of the ten s and one s place accord with the error code The figures indicated when you hear the beep sound are error code Refer to page 173 4 Press the MODE button The figure ...

Page 182: ... both figures of the ten s and one s place accord with the error code 7 Determine the error code The figures indicated when you hear the beep sound are error code Error codes and description Refer to page 173 8 Press the MODE button to exit from the diagnosis mode The display means the trial operation mode Refer to page 252 for trial operation 9 Press the ON OFF button twice to return to the norma...

Page 183: ...nel Open Close Fault 182 C9 Room temperature thermistor abnormality 181 Outdoor Unit A5 Freeze up protection control 183 E5 OL activation compressor overload 185 E6 Compressor lock 186 E7 DC fan lock 187 E8 Input overcurrent detection 188 F3 Discharge pipe temperature control 190 F6 High pressure control in cooling 191 H0 Compressor sensor system abnormality 193 H6 Position sensor abnormality 194 ...

Page 184: ...upposed Causes Faulty indoor unit PCB Faulty connector connection Troubleshooting Note Connector Nos vary depending on models R7130 Connector connection check Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is it normal NO YES Correct connections Replace PCBs Model Type Connector Wall Mounted Type Terminal strip Control PCB Duct Conne...

Page 185: ...ing 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 61 C for ATX20 35G Freeze up protection When the indoor unit heat exchanger temperature is below 0 C during cooling operation Supposed Causes Operation halt due to ...

Page 186: ...ere any short circuit YES NO YES Check the intake air filter Is it very dirty NO Check the dust accumulation on the indoor unit heat exchanger Is it very dirty YES NO Indoor unit heat exchanger thermistor check Check No 06 Does it conform to the thermistor characteristic chart NO YES Provide sufficient air passage Clean the air filter Clean the heat exchanger Replace the indoor unit PCB Replace th...

Page 187: ...citor of the fan motor Detection error due to faulty control PCB Troubleshooting Check No 16 Refer to P 221 R7132 Operate the fan Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Does it rotate YES Rotate the fan by hand NO Does it rotate smoothly Check the fan motor voltage immediately after restart Is it at the rated voltage NO YES C...

Page 188: ...n 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 capa...

Page 189: ... Is the motor control power voltage DC 15V generated Turn off the power supply and disconnect the fan motor connector then turn the power ON again Check No 01 Check output of the fan motor connector Is the rotation numbercommand voltage DC 1 6V generated Check No 01 Check output of the fan motor connector Is the rotation number command pulse generated Stop the fan motor Check No 01 Check output of...

Page 190: ... between 10Ω and 20Ω Turn the power on again Check No 18 Check output of the indoor unit PCB Is motor control power voltage DC 15V generated Try to rotate the fan Fan rotates smoothly Check No 19 Check the indoor unit PCB for pulse input Is rotation pulse input DC 5V or higher generated NO YES YES YES YES NO NO NO To secure the connection once disconnect the connector and then reconnect it Correct...

Page 191: ...w about 50 C more than 1 860 kΩ ATX20 35G When above about 105 C less than C4 1 070 Ω C9 829 Ω or below about 30 C more than C4 331 Ω C9 88 kΩ Note The values vary slightly in some models Supposed Causes Faulty connector connection Faulty thermistor Faulty PCB Troubleshooting Check No 06 Refer to P 215 C4 Heat exchanger temperature thermistor C9 Room temperature thermistor R7134 Check the connecto...

Page 192: ... 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 R7135 Restart and check the movement Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Does it move NO Remove the front panel and ch...

Page 193: ...nditions In 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 is shut down The 4 time counter is reset if any of the following errors does not occur for 60 minutes OL radiation fi...

Page 194: ...it heat exchanger thermistor Thermistor as specified in its characteristic chart Check No 06 Check the room temperature thermistor Thermistor as specified in its characteristic chart Change the gas to let moisture out of the unit after drawing a vacuum Error again YES NO NO NO YES YES YES NO Correct the wiring or piping error Replace the defective electronic expansion valve or coil Replace the hea...

Page 195: ...ing Check No 04 Refer to P 213 Check No 05 Refer to P 214 Check No 06 Refer to P 215 Check No 11 Refer to P 218 R7137 Insert the thermistor in position Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Discharge pipe thermistor disconnected YES Check No 06 Check the thermistors NO Functioning Check No 04 Check the electronic expansion v...

Page 196: ...ff power switch before connect or disconnect connector or parts damage may be occurred Normal YES Precaution before turning on the power again Make sure the power has been off for at least 30 seconds NO Turn off the power Disconnect the harnesses U V and W Check with the inverter checker Turn off the power and reconnect the harnesses Turn on the power again and get the system restarted Emergency s...

Page 197: ... for about 11 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 221 R7139 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Fan motor connector disconnected NO Get started Foreign matter...

Page 198: ...tion Decision Conditions The following input value calculated from power consumption of outdoor unit with the compressor running continues for 2 5 seconds Input value Above 15 A Supposed Causes Overcurrent due to compressor failure Overcurrent due to defective power transistor Overcurrent due to defective inverter main circuit electrolytic capacitor Overcurrent due to defective outdoor unit PCB Er...

Page 199: ... the system is interrupted by an input overcurrent check the wires again R11709 NO YES YES NO Start operation and measure the input current Check No 08 Check the discharge pressure Check No 07 Check the installation condition Check No 14 Check with the inverter checker Turn off the power and disconnect the harnesses U V and W Turn off the power and reconnect the harnesses Turn on the power again a...

Page 200: ...t occur during the following 60 minute compressor running time total time Supposed 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 213 Chec...

Page 201: ...nsed 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 Deactivated when the temperature drops below 53 C Supposed Causes The installation space is not large enough Faulty outdoor unit fan Faulty electronic expansion valve Faulty outdoor unit heat exchanger thermistor Fault...

Page 202: ...ion Check No 07 Check the installation condition Abnormal Check the installation space Abnormal Abnormal Abnormal Check No 09 Check the outdoor fan Check No 04 Check the electronic expansion valve Judgment Check No 04 Check the heat exchanger thermistor Judgment Normal Normal Normal Normal Change the installation location Replace the fan motor Repair the connector or fan motor lead wires Replace t...

Page 203: ...the DC current before compressor startup is other than 0 5 to 4 5 V detected by converting the sensor output to voltage or the DC voltage is 50 V or less Supposed Causes Defective PCB Harness disconnection defective connection Troubleshooting R7143 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Is the wire harness damaged Damaged Che...

Page 204: ...gh the position detection circuit Malfunction Decision Conditions The compressor is not running in about 15 seconds after the compressor run command signal is sent Clearing condition Continuous run for about 11 minutes normal The system is shut down if the error occurs 16 times Supposed Causes Compressor relay cable disconnected Compressor itself defective Outdoor unit PCB defective Stop valve clo...

Page 205: ...supply Judgment Check No 13 Check for short circuit Normal Check the electrolytic capacitor voltage DC270 30V Electricals or compressor harnessesconnected as specified Turn off the power Disconnect the harnesses U V and W Check with the inverter checker Any LED off YES YES NO Replace the stop valve Replace the outdoor unit PCB outdoor unit fan Replace the four way valve coil Replace the outdoor un...

Page 206: ...frequency is more than 52 Hz and when the DC current is less than 0 3 A or DC voltage is less than 50V If this error repeats 4 times the system is shut down The error counter is reset if this or any other error does not occur during the following 60 minute compressor running time total time Supposed Causes Power transistor defective Internal wiring broken or in poor contact Reactor defective Outdo...

Page 207: ...put is above 4 98 V or below 0 02 V with the power on for 5 seconds Error J3 is judged if the discharge pipe thermistor temperature is smaller than the heat exchanger thermistor temperature In case of J8 or J9 the system is shut down when the error is detected at all of operating units Supposed Causes Connector in poor contact Thermistor defective Outdoor unit PCB defective Indoor unit PCB defecti...

Page 208: ...he power again Connector or thermistor disconnected Error displayed again on remote controller Normal Check No 06 Check the indoor unit heat exchanger thermistor resistance value in the heating mode Indoor unit heat exchanger thermistor functioning NO YES YES NO YES YES NO NO Reconnect Reconnect Replace defective one s of the following thermistors z Radiation fin thermistor z Discharge pipe thermi...

Page 209: ...on fin thermistor with the compressor off Malfunction Decision Conditions With the compressor off the radiation fin temperature is above 80 C The error is cleared when the temperature drops below 70 C Supposed Causes Radiation fin temperature rise due to defective outdoor unit fan Radiation fin temperature rise due to short circuit Radiation fin thermistor defective Connector in poor contact Outdo...

Page 210: ...onds WARNING To cool down the electricals the outdoor unit fan gets started when the radiation fin temperature rises above 75 C even when the air conditioning is not operated and stops itself when it drops below 70 C YES NO Check No 06 Check the thermistor resistance value Check the radiation fin temperature Thermistor as specified in its characteristic chart z Fin thermistor YES YES Above 80 C Ma...

Page 211: ... 93 C If a radiation fin temperature rise takes place 255 times successively the system is shut down The error counter is reset if this or any other error does not occur during the following 60 minute compressor running time total time Supposed Causes Radiation fin temperature rise due to defective outdoor unit fan Radiation fin temperature rise due to short circuit Radiation fin thermistor defect...

Page 212: ...aution before turning on the power again Make sure the power has been off for at least 30 seconds NO YES Has PCB been replaced YES NO YES z Fin thermistor Thermistor as specified in its characteristic chart Check the radiation fin temperature Check the outdoor unit fan or related Check No 06 Check the thermistor resistance value Check No 09 Radiation fin dirty Check No 07 Check the installation co...

Page 213: ...pressor is running An output overcurrent input is fed from the output overcurrent detection circuit to the microcomputer The system is shut down if the error occurs 8 times Clearing condition Continuous run for about 11 minutes normal Supposed Causes Overcurrent due to defective power transistor Overcurrent due to wrong internal wiring Overcurrent due to abnormal supply voltage Overcurrent due to ...

Page 214: ...nesses U V and W YES NO NO Check with the inverter checker Any LED off YES NO YES Normal Turn off the power and reconnect the harnesses Turn on the power again and get restarted Check the supply voltage Voltage as rated YES NO Short circuit or breakage between compressor s coil phases Check No 08 Check the discharge pressure Check No 07 Check the installation condition YES NO NO YES Monitor the su...

Page 215: ...etection I Power consumption 4578 256 W Hz Compressor running frequency 638 W However when the status of running frequency 48 Hz is kept on for a certain time If a refrigerant shortage error takes place 4 times successively the system is shut down The error counter is reset if this or any other error does not occur during the following 60 minute compressor running time total time Supposed Causes R...

Page 216: ...YES YES YES Discharge pipe thermistor Indoor outdoor unit heat exchanger thermistor Room temperature thermistor Outdoor air thermistor NO YES Compressor vibrating too much NO YES Malfunctioning Check No 06 Check the thermistors Functioning Replace the room temperature or outdoor air thermistor or the indoor unit or outdoor unit heat exchanger thermistor Check the power transistor harness for loose...

Page 217: ...rmal Supposed Causes Supply voltage not as specified Over voltage detector or DC voltage detection circuit defective PAM control part s defective Short circuit inside the fan motor winding Troubleshooting R7150 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Check the supply voltage Supply voltage as specified YES Rotate fan by hand D...

Page 218: ...oms Operation halt due to unspecified voltage between 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 R7151 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Check the model number Error displaying air conditi...

Page 219: ...sence or absence of zero cross signal Malfunction Decision Conditions 1 When the program of the microcomputer is in bad running order 2 When indoor outdoor unit signal transmission can not be performed for more than 15 seconds 3 When zero cross signal can not be detected for more than 10 seconds Supposed Causes Display disabled due to power supply fault Communication circuit fault in outdoor unit ...

Page 220: ... it damaged Check fuse FU1 on the outdoor unit PCB Does it have continuity Check thermal fuse on the terminal board Does it have continuity Check 5V and GND on the outdoor unit PCB Power on again NO YES YES Wait more than 10 sec 5 V 0 5 V YES NO YES NO NO Check terminal board connecting wire for proper connection Firmly connected NO NO Continued to the next page 1 Rectify the power supply Replace ...

Page 221: ...and turn on the power supply again Does LED A flashing more than 10 times Check relay wire between indoor unit and outdoor unit Is it OK YES NO NO Check wrong wiring insulation among wiring insulation to ground Carry out grounding work The cause seems to be an external factor other than failure of the outdoor unit PCB Investigate source of noise and take measures Investigate the cause of disturban...

Page 222: ...ection 2 Check motor power supply voltage output pins 4 7 3 Check motor control voltage pins 4 3 4 Check rotation command voltage output pins 4 2 5 Check rotation pulse input pins 4 1 7 6 5 4 3 2 1 S1 R12099 Motor power supply voltage 310 340 VDC Unused Unused GND Motor control voltage 15 VDC Rotation command voltage 1 6 VDC Rotation pulse ...

Page 223: ...e that the latching sound varies depending on the valve type If the system keeps operating with a defective electronic expansion valve the following problem may occur Valveopening position Possible problem Check method Open Cooling Flowing noise of refrigerant in the unit which is not in operation Water leakage at the unit which is not in operation Operation half due to anti icing function Reset p...

Page 224: ...ssor on Fig 1 Start the heating operation Disconnect the four way valve coil from the connector and check the continuity Four way valve coil resistance at 1500 Ω YES YES NO NO Replace the outdoor unit PCB Four way valve coil Cooling dry No continuity Heating Continuity Replace the four way valve coil Replace the four way valve Fig 1 Voltage at S80 DC220 240V Compressor ON Time ...

Page 225: ...e of each thermistor using tester The relationship between normal temperature and resistance is shown in the graph and the table below Thermistor temperature C Resistance kΩ 20 211 0 15 150 0 10 116 5 5 88 0 0 67 2 5 51 9 10 40 0 15 31 8 20 25 0 25 20 0 30 16 0 35 13 0 40 10 6 45 8 7 50 7 2 R25 C 20 kΩ B 3950 K Tester Resistance range kΩ 150 100 50 15 0 15 30 45 C ...

Page 226: ...eat exchanger very dirty Is the airflow blocked by obstacles or winds blowing in the opposite direction Abnormal Normal NO NO NO YES YES YES Change the position of the air discharge grille or the installation location Change the position of the air discharge grille or the installation location Clean the heat exchanger Change the installation location or direction Check the outside air temperature ...

Page 227: ...heck to see if there is waveform disturbance near the zero cross sections circled in Fig 2 R7158 High Discharge pressure check Is the stop valve open Is the connection pipe deformed Are the heat exchanger and air filter dirty NO NO NO YES YES YES Not dirty Dirty Replace the compressor Open the stop valve Replace the pipe installed at the site Clean Replace the compressor R7159 Check the outdoor un...

Page 228: ...he terminals of the compressor with a multi tester Evaluate the measurement results for a judgment R8428 Refrigerant system check NO Is the discharge thermistor disconnected from the holder Is the temperature of the four way valve suction pipe abnormally high Check for refrigerant leakage See the section on refrigerant shortage detection NO YES YES Correct the problem Four way valve defective Repl...

Page 229: ...er off Step 2 Install the inverter checker instead of a compressor Note Make sure the charged voltage of the built in smoothing electrolytic capacitor drops to 10 VDC or below before carrying out the service work Reference If the terminals of the compressor are not FASTON terminals difficult to remove the wire on the terminals it is possible to connect wires available on site to the outdoor unit f...

Page 230: ...2 Select FAN operation on the remote controller 3 Press the ON OFF button FAN operation starts 4 Press the TEST button twice Inverter test operation starts Diagnose method Diagnose according to 6 LEDs lighting status 1 When all the LEDs are lit uniformly the compressor is defective Replace the compressor 2 When the LEDs are not lit uniformly check the power module Refer to Check No 13 3 If NG in C...

Page 231: ...When the fuse is melted check the outdoor fan motor for proper function If NG in step 2 Defective PCB Replace the PCB If NG in step 4 Defective Hall IC Replace the outdoor fan motor If OK in both steps 2 and 4 Replace the PCB 5 1 13 Hall IC Check Check No 16 1 Check the connector connection 2 With the power ON operation OFF and the connector connected check the following Output voltage of about 5 ...

Page 232: ...No 18 1 Check the connector for connection 2 Check the motor power voltage is generated between pins 2 and 3 R11979 12 11 10 9 8 7 6 5 4 3 2 1 Phase U Free pin S200 Free pin Free pin Free pin Free pin Free pin Phase V Phase W GND Motor control voltage 15 VDC Rotation pulse 5 VDC ...

Page 233: ...on 2 Turn the power on and stop the operation 3 Check if the Hall IC generates the rotation pulse 4 times when the fan motor is manually rotated once between the pins 1 and 3 R11979 12 11 10 9 8 7 6 5 4 3 2 1 Phase U Free pin S200 Free pin Free pin Free pin Free pin Free pin Phase V Phase W GND Motor control voltage 15 VDC Rotation pulse 5 VDC ...

Page 234: ...tor for connection 2 Turn the power off 3 Check if each resistance at the phases U V and V W is 10 Ω 20 Ω between the pins 12 9 and between 9 6 R11979 12 11 10 9 8 7 6 5 4 3 2 1 Phase U Free pin S200 Free pin Free pin Free pin Free pin Free pin Phase V Phase W GND Motor control voltage 15 VDC Rotation pulse 5 VDC ...

Page 235: ...anels and Plates 226 1 2 Removal of the Electrical Box 228 1 3 Removal of the PCB 233 1 4 Removal of the Sound Blanket 238 1 5 Removal of the Outdoor Fan Fan Motor 240 1 6 Removal of the Thermistors 243 1 7 Removal of the Compressor 245 1 8 Removal of the Four Way Valve Electronic Expansion Valve 247 ...

Page 236: ...embling work Step Procedure Points 1 External appearance 2 Remove the 2 screws right left of the top panel and 8 screws to remove the front panel The front panel has 4 hooks The bell mouth can not be removed R7570 Handle Manufacturer s label R7571 φ6 4Flare connection Liquid side Gas side φ9 5 Flare connection Room A Room B Outdoor air thermistor R7572 Top panel Hooks Discharge grille Front panel ...

Page 237: ...harge grille When reassembling make sure to fit the 4 hooks 4 Remove the 2 screws of the stop valve cover and remove it The stop valve cover is united with the shelter When assembling the stop valve cover make sure to fit the 4 hooks Step Procedure Points R7700 R7699 Stop valve cover R7701 ...

Page 238: ... terminal board The terminal board is united resin formation 1 Remove the 2 grounding screws Remove the 2 screws to remove the wiring fixture Then remove the all screws for the connectors to disconnect the power supply cable and the connecting wires 2 Remove the electrical box 1 Release the outdoor air thermistor from the holder 2 Lift up the guard net to remove 4 4 P R7573 Room A Wiring fixture G...

Page 239: ... Removal of the PCB 4 Release the lead wire for the fan motor 5 Disconnect the connector for the gas pipe thermistor S91 and for the liquid pipe thermistor S92 S91 Gas pipe thermistor white S92 Liquid pipe thermistor red 6 Disconnect the connector for the overload protector S40 S40 Overload protector Step Procedure Points R7578 S70 R7579 R7580 S92 S91 R7581 S40 ...

Page 240: ...VA S21 Electronic expansion valve EVB S80 Four way valve 8 Release the wire clip from the electrical box The clip is push mount type 9 Disconnect the connector for the relay harness of compressor 10 Disconnect the 2 connectors for the reactor Step Procedure Points R7582 S20 S21 S80 R7583 R7584 Dischargepipe thermistor R7585 ...

Page 241: ...istor 12 Disconnect the connector for the thermistor ASSY S90 S90 Thermistor ASSY Outdoor air Heat exchanger Discharge pipe 13 Release the wire clamp for the thermistor ASSY under the electrical box 14 Remove the screw on the right side of the electrical box Step Procedure Points R7586 Clip for discharge pipe thermistor Discharge pipe thermistor R7587 S90 R7588 Wire clamp R7589 Electrical box ...

Page 242: ...Outdoor Unit SiBE12 933_A 232 Removal Procedure 15 Remove the screw in front of the electrical box 16 Lift up the electrical box to remove Step Procedure Points R7590 R7591 ...

Page 243: ...ing to the removal procedure The control PCB is adopted upside down The lead free solder PbF is used on PCB When exchange use exclusive solder and soldering gun 1 Remove the PCB 1 Remove the screw of the cover of the Electrical box 2 Detach the insulation sheet The trimmed part goes front 3 Remove the 2 screws of the terminal boards to remove The terminal board is united with temperature fuse 4 Re...

Page 244: ...s and release the one clip to remove the radiation shield plate The clip is push mount type 6 Cut off the clamp and disconnect the wire harnesses Step Procedure Points R7600 Temperature fuse harness Radiation shield plate 2 R7596 Compressor harness Clip Hole R7601 R7597 ...

Page 245: ...move the PCB 8 Lift up the back side slightly and undo the hooks of the front Make sure that the hooks of the electrical box are placed on the PCB 9 Undo the lead wires from the hook and remove the terminal board on the side Step Procedure Points R7598 R7602 R7603 R7604 Terminal board ...

Page 246: ...erminals from the temperature fuse and each terminal board valve EVA S21 Electronic expansion valve EVB S40 Overload protector S70 Fan motor S80 Four way valve S90 Discharge pipe Heat exchanger Outdoor air thermistor S91 Gas pipe thermistor S92 Liquid pipe thermistor Step Procedure Points R7605 R7606 Control PCB R7607 S70 S40 S92 S91 S20 S21 S90 S80 ...

Page 247: ...SiBE12 933_A Outdoor Unit Removal Procedure 237 12 Remove the 2 screws of the radiation fin Step Procedure Points R7608 R7609 ...

Page 248: ...ve the electrical box 1 Remove the right side panel 1 Remove the 6 screws to remove the right side panel 2 Remove the partition plate When assembling make sure to catch the lower hook of the partition plate 1 Remove the 2 screws to remove the partition plate 2 Since there are hooks on the partition plate lift up once and pull out toward yourself to remove it R7610 R7611 R7612 Remove the screw of t...

Page 249: ...rings open the sound blanket body and pull it out 2 Lift up the sound blanket top upper to remove Since the piping ports are torn easily remove the blanket carefully 3 Open the sound blanket inner and pull it out 4 Pull out the sound blanket bottom Step Procedure Points R7613 R7614 R7617 R7615 R7616 ...

Page 250: ...wer supplies before disassembling work Step Procedure Points 1 Remove the outdoor fan 1 Remove the washer fitted nut M10 by an open ended spanner to remove the outdoor fan When assembling align mark of the outdoor fan with D cut section of the motor shaft 2 Remove the fan motor 1 Disconnect the connector S70 for the fan motor from the PCB R7618 R7619 R7620 R7621 S70 ...

Page 251: ...ws the arrangement of the fan motor lead wire 3 Remove the one screw to remove the fan motor fixing plate When assembling make sure z mark of the fan motor goes down 4 Take out the fan motor fixing plate toward yourself Step Procedure Points R7622 R7623 R7624 R7625 ...

Page 252: ...ooks of the lead wire 6 Release the fan motor lead wire When assembling put the lead wire through the back of the motor so as not to be entangled with the outdoor fan 7 Remove the 4 screws and 4 rubber vibration isolators to remove the fun motor Step Procedure Points R7626 R7627 R3249 Lead wire Outdoor fan R7628 R7629 ...

Page 253: ...he clip and remove the discharge pipe thermistor 2 Cut off the clamp to remove the heat exchanger thermistor The clamp is always reserved Be careful not to lose the clips for each thermistor 3 The outdoor air discharge pipe heat exchanger thermistors are united as one assembly 4 The figure shows the arrangement of the assembly of thermistor S90 2 Remove the liquid gas pipe thermistor 1 Remove the ...

Page 254: ...or Room A Black Room B Gray S92 Liquid pipe thermistor Room A Black Room B Gray 4 The figure shows the arrangement of the assembly of the liquid gas thermistor Meet the edge of the thermistor and the clip Step Procedure Points R7634 R7635 Thermistor Liquid Room A Thermistor Gas Room A Thermistor Liquid Room B Thermistor Gas Room B R7636 ...

Page 255: ... Procedure Points 1 Remove the terminal cover Be careful so as not to burn the compressor terminals or the name plate 2 Disconnect the flag shaped terminals 3 Detach the terminals by long nose pliers Release the hooks by a flat screwdriver to remove the overload protector 4 Detach the overload protector R7637 Terminal cover R7638 Protection bushing for lead wires Red U Blue W Yellow V R7639 R7640 ...

Page 256: ...alve pipes and so on which were heated up by a gas brazing machine so as not to get burnt your hands Caution From the viewpoint of global environment protection do not discharge the refrigerant gas in the atmosphere Make sure to recover the refrigerant gas with the recovery system Before working make sure that the refrigerant is empty in the circuit Be sure to apply nitrogen replacement when heati...

Page 257: ... Caution From the viewpoint of global environment protection do not discharge the refrigerant gas in the atmosphere Make sure to recover the refrigerant gas with the recovery system Release the four way valve coil and the 2 clamps and then release the wire harnesses 1 Removed the peripheries Remove Terminal cover of compressor Four way valve coil Electronic expansion valve coil not to burn them by...

Page 258: ...restore 2 Cut pipes on the main unit by a miniature copper tube cutter in order to make it easy to disconnect Note Do not use a metal saw for cutting pipes by all means because the sawdust come into the circuit The brazed parts are heated after being disconnected To avoid a burn make sure that the compressor is cooled down before removing 4 Provide a protective sheet or a steel plate so that the b...

Page 259: ...3 1 Indoor Unit ATX ATXS ATXG F C TXG FTXS FDK X S FLK X S FVXS Series 252 3 2 Indoor Unit FFQ Series 254 4 Field Settings 255 4 1 RA Indoor Unit ATX ATXS ATXG F C TXG FTXS FDK X S FLK X S FVXS Series 255 4 2 Indoor Unit FFQ Series 259 4 3 Outdoor Unit 262 4 4 Maximum Power Input Limitation Setting 263 5 Application of Silicon Grease to a Power Transistor and a Diode Bridge 264 ...

Page 260: ...rooms A and room B 2 Carry out forced cooling operation 3 After 5 to 10 minutes close the liquid stop valve at the pipes for rooms A and room B with a hexagonal wrench 4 After 2 to 3 minutes close the gas stop valve and stop the forced cooling operation as quickly as possible after the gas stop valves at the pipes for rooms A and B have been shut off 5 Turn the power breaker off Refer to page 251 ...

Page 261: ...3 minute standby mode 2 The outdoor unit is not operating Start Press the forced cooling operation ON OFF button SW1 or S1W on the indoor unit for 5 seconds Operating room All rooms Command frequency 40 class 70 Hz 50 class 47 Hz End The forced cooling operation ends when any of the following conditions is fulfilled 1 The operation ends automatically after 15 minutes 2 Press the forced cooling ope...

Page 262: ...acks up the operation mode The system then restarts operation with the previous mode when the circuit breaker is restored In cooling mode select the lowest programmable temperature in heating mode select the highest programmable temperature Trial operation may be disabled in either mode depending on the room temperature After trial operation is complete set the temperature to a normal level 26 C t...

Page 263: ... the TEMP button and the MODE button at the same time 3 Press the MODE button twice T appears on the display to indicate that trial operation is selected 4 Press the MODE button and select operation mode 5 Trial operation terminates in approx 30 minutes and switches into normal mode To quit a trial operation press the ON OFF button 2 1 5 3 2 3 4 R9663 ...

Page 264: ...st button and operate normally 8 Confirm all the function of unit according to the operation manual 9 If the decoration panel has not been installed turn off the power after the trial operation Checkpoints Cautions or warnings Are all units securely installed z Dangerous for turning over during storm z Possible damage to pipe connections Is the earth wire installed according to the applicable loca...

Page 265: ...t pump side Heat pump model Set the DIP switch to H P Cooling only model Set the DIP switch to C O 4 1 2 When 2 Units are Installed in 1 Room When 2 indoor units are installed in 1 room 1 of the 2 pairs of indoor unit and wireless remote controller can be set for different address Both the indoor unit PCB and the wireless remote controller need alteration Indoor Unit PCB Wall Mounted Type 1 Remove...

Page 266: ... Pull out the indoor heat exchanger thermistor 6 Remove the shield plate 8 tabs 7 Cut the address jumper JA on the indoor unit PCB 8 Cut the address jumper J4 in the remote controller Refer to Wireless remote controller ADDRESS JA ADDRESS JA EXIST 1 CUT 2 R12216 3 Connector S42 3 Connector S41 3 Connector S1 4 Remove the screw 5 Indoor heat exchanger thermistor JA Address EXIST 1 CUT 2 JA JC JB 2 ...

Page 267: ... Duct Connected Type Cut the jumper JA on PCB Wireless Remote Controller 1 Remove the cover and take it off 2 Cut the address setting jumper ADDRESS JA EXIST 1 CUT 2 R11732 1 2 3 CUT EXIST 1 2 ADDRESS JA JB JC R10276 ADDRESS JA ARC452 series ARC433 series Jumper ADDRESS EXIST 1 CUT 2 R12065 Jumper R6573 ADDRESS EXIST 1 CUT 2 ...

Page 268: ...stat OFF effective only at cooling operation Fan speed setting Remote controller setting Fan speed setting 0 The fan stops JC Power failure recovery function Auto restart The unit does not resume operation after recovering from a power failure Timer settings are cleared Switch on indoor unit PCB Function OFF factory set ON SW2 4 Upward airflow limit setting Exposed or half embedded installation Se...

Page 269: ...d Mode No 3 If the indoor unit is under group control all settings for all the indoor units are set at the same time Use the codes 10 to 15 to apply this group control and proceed to the next step If you want to set the indoor units of one group individually or if you want to read out the last settings use the codes 20 to 25 which are displayed in brackets Press the Timer Selection button to selec...

Page 270: ...settings you have to change Mode No First code No Second code No To change the field settings proceed as follows Step Action 1 Press the Inspection Test button for 4 seconds during normal mode to enter the field setting mode 2 Press the MODE button to select the desired Mode No 3 Press the UP button to select the First code No 4 Press the DOWN button to select the Second code No 5 Press the Reserv...

Page 271: ... to change one remote controller from MAIN to SUB To change a remote controller from MAIN to SUB proceed as follows Mode No First code No Description of the setting Second code No 01 02 03 10 20 0 Filter cleaning sign time Light contamination Approx 2 500hrs Heavy contamination Approx 1 250hrs Step Action 1 Insert a flat screwdriver into the groove between the upper and lower part of the remote co...

Page 272: ...n setting Standard control The power input is limited to 1700 W It is recommended for the areas with circuit breakers of low capacity J5 Improvement of defrost performance Standard control Reinforced control ex The frequency increases the duration time of defrost lengthens Top panel J3 J4 J5 PCB Notch PCB R12774 Electrical box 5 Cut the jumper Hook Fan motor lead wire 1 Remove the 2 screws Electri...

Page 273: ...n limits the power input of the unit to 1700W This function is recommended for areas with circuit breakers of low capacity Detail R9679 1 Remove the two screws Upper electric box cover Lower electric box cover 3 Remove the upper electric box cover from the hook Top plate 2 Remove the one screw 4 Remove the lower electric box cover Notch Electric box PCB 5 Cut jumper J4 PCB J5 J4 J3 Fan motor lead ...

Page 274: ...or encouraging the heat radiation of the power transistor and the diode bridge Applying the paste should be implemented in accordance with the following instruction Remark There is the possibility of failure with smoke in case of bad heat radiation Wipe off the old silicon grease completely on a radiation fin Apply the silicon grease evenly to the whole Do not leave any foreign object such as sold...

Page 275: ...SiBE12 933_A Appendix 265 Part 9 Appendix 1 Piping Diagrams 266 1 1 Indoor Units 266 1 2 Outdoor Units 270 2 Wiring Diagrams 272 2 1 Indoor Units 272 2 2 Outdoor Units 277 ...

Page 276: ...REFRIGERANT FLOW COOLING HEATING M 4D058897A INDOOR UNIT HEAT EXCHANGER FIELD PIPING 6 4CuT FIELD PIPING 9 5CuT CROSS FLOW FAN FAN MOTOR 9 5CuT REFRIGERANT FLOW COOLING HEATING THERMISTOR ONHEATEXCH 6 4CuT M 4D058898A INDOOR UNIT HEAT EXCHANGER FIELD PIPING 6 4CuT FIELD PIPING 12 7CuT CROSS FLOW FAN FAN MOTOR 9 5CuT REFRIGERANT FLOW COOLING HEATING THERMISTOR ONHEATEXCH 6 4CuT M 4D045301C INDOOR U...

Page 277: ...NG 6 4CuT FIELD PIPING 12 7CuT 7 0CuT 7 0CuT 7 0CuT REFRIGERANT FLOW COOLING HEATING M FDKS50CVMB FDKS25EAVMB FDKS35EAVMB FDXS50CVMB FDXS25EAVMB FDXS35EAVMB C 4D045449K FDXS25EAVMB FDXS35EAVMB FDKS25EAVMB FDKS35EAVMB FDXS50CVMB FDKS50CVMB 9 5 A 12 7 A INDOOR UNIT HEAT EXCHANGER FIELD PIPING 6 4CuT FIELD PIPING A CuT SIROCCO FAN FAN MOTOR A CuT REFRIGERANT FLOW COOLING HEATING THERMISTOR ONHEAT EXC...

Page 278: ...CuT 4D048723A INDOOR UNIT 9 5CuT HEAT EXCHANGER SIROCCO FAN FAN MOTOR FIELD PIPING 6 4CuT FIELD PIPING 12 7CuT REFRIGERANT FLOW COOLING M 12 7CuT THERMISTOR ON HEAT EXCH 4D048722B INDOOR UNIT 6 4CuT HEAT EXCHANGER SIROCCO FAN FAN MOTOR FIELD PIPING 6 4CuT FIELD PIPING 9 5CuT REFRIGERANT FLOW M 9 5CuT COOLING HEATING THERMISTOR ON HEAT EXCH 4D048724B COOLING HEATING INDOOR UNIT 9 5CuT HEAT EXCHANGE...

Page 279: ...R M 9 5CuT 6 4CuT 6 4CuT 6 4CuT THERMISTOR ON HEAT EXCH FIELD PIPING 6 4CuT FIELD PIPING 9 5CuT 4D056138A REFRIGERANT FLOW COOLING HEATING INDOOR UNIT MUFFLER ASSY HEAT EXCHANGER 7 0CuT 6 4CuT TURBO FAN FAN MOTOR M 9 5CuT 6 4CuT THERMISTOR ON HEAT EXCH FIELD PIPING 6 4CuT FIELD PIPING 12 7CuT 6 4CuT 6 4CuT 6 4CuT 6 4CuT 6 4CuT C 4D039335 A B Indoor heat exchanger Indoor unit Field piping φ A C1220...

Page 280: ... ROOM B 9 5 CuT FIELD PIPING GAS MUFFLER BRANCH PIPE 9 5CuT 9 5CuT 9 5CuT 9 5CuT 9 5CuT MUFFLER GAS PIPE THERMISTOR GAS LINE STOP VALVE MUFFLER GAS PIPE THERMISTOR GAS LINE STOP VALVE 3D057468C OUTDOOR UNIT BRANCH PIPE 7 9CuT 7 9CuT HEAT EXCHANGER OUTDOOR TEMPERATURE THERMISTOR 6 4CuT MUFFLER WITH BRANCH 4 8CuT 4 8CuT HEATEXCHANGER THERMISTOR FAN MOTOR 9 5CuT PROPELLER FAN M 9 5CuT FOUR WAY VALVE ...

Page 281: ... B 9 5 CuT FIELD PIPING GAS MUFFLER BRANCH PIPE 9 5CuT 9 5CuT 9 5CuT 9 5CuT 9 5CuT MUFFLER GAS PIPE THERMISTOR GAS LINE STOP VALVE MUFFLER GAS PIPE THERMISTOR GAS LINE STOP VALVE HEATING 3D057467E OUTDOOR UNIT BRANCH PIPE 7 9CuT 7 9CuT HEAT EXCHANGER OUTDOOR TEMPERATURE THERMISTOR 6 4CuT MUFFLER WITH BRANCH 4 8CuT 4 8CuT HEATEXCHANGER THERMISTOR FAN MOTOR 9 5CuT PROPELLER FAN M 9 5CuT FOUR WAY VAL...

Page 282: ...NECTOR S1W OPERATION SWITCH X1M TERMINAL STRIP PROTECTIVE EARTH S32 S6 S200 1 2 1 5 1 6 9 12 1 S403 10 BLK BLK BLK BLK BLK BLK BLK BLK 6 1 1 4 S602 S601 PCB 3 S21 OPTION M1F M1S R2T BLK BLK t BLK BLK BLK BLK BLK M M WHT BLK RED BLU ORG YLW 3D058246A X1M FIELD WIRING 3 2 1 CAUTION NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN 1 2 3 BLK ...

Page 283: ...K BLU M RED ORG YLW PNK BLU RED ORG YLW PNK BLU WHT ORG BRN BLU RED F1U 3 15A H1B FG E1 E2 GRN YLW GRN YLW RED WHT BLK X1M 3 2 1 3 2 1 FIELD WIRING outdoor CAUTION NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN FG FLAME GRUND F1U FUSE H2P H4P PILOT LAMP M1F FAN MOTOR M1S M2S M3S SWING MOTOR PCB1 PCB2 PCB3 PRINTED CIRCUIT BOARD R1T R2T T...

Page 284: ...AMP M1F FAN MOTOR PCB1 PCB2 PRINTED CIRCUIT BOARD Q1M THERMAL PROTECTOR M1F EMBEDDED R1T R2T THERMISTOR S1 S32 RTH1 CONNECTOR S1W OPERATION SWITCH V1TR PHASE CONTROL CIRCUIT X1M TERMINAL BLOCK Z1C NOISE FILTER FERRITE CORE PROTECTIVE EARTH C1 CAPACITOR M1F F1U FUSE WIRELESS REMOTE CONTROLLER 3D033909F CAUTION NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND...

Page 285: ...MISTOR S1 S49 CONNECTOR S1W OPERATION SWITCH S2W 4 UPWARD AIR FLOW LIMIT SWITCH S4W AIR OUTLET SELECTION SWITCH X1M TERMINAL STRIP E3 EARTH TERMINAL HEAT EX E4 EARTH TERMINAL SHIELD PLATE 1 3 outdoor FIELD WIRING 2 X1M 1 3 2 BLK WHT RED GRN GRN YLW E3 E4 E3 GRN M1F M S49 PCB1 R1T t t R2T RED BLU BRN ORG WHT S48 S32 HA S21 1 4 7 S1 E1 SA1 V2 H3 H2 H1 F1U 3 15A V1 RECTIFIER TRANSMISSION CIRCUIT PCB2...

Page 286: ...1P LIGHT EMITTING DIODE ON RED F1U FUSE F5A 250V HAP LIGHT EMITTING DIODE SERVICE MONITOR GREEN H2P LIGHT EMITTING DIODE TIMER GREEN KPR MAGNETIC RELAY M1P H3P LIGHT EMITTING DIODE FILTER SIGN RED M1F MOTOR INDOOR FAN M1P MOTOR DRAIN PUMP H4P LIGHT EMITTING DIODE DEFROST ORANGE M1S MOTOR SWING FLAP Q1M THERMO SWITCH M1F EMBEDDED SS1 SELECTOR SWITCH MAIN SUB R1T THERMISTOR AIR R2T THERMISTOR COIL 1...

Page 287: ...H S20 S21 S40 S70 S80 S45 S90 S91 S92 X11A CONNECTOR BLK BLACK BLU BLUE BRN BROWN GRY GREY ORG ORANGE RED RED WHT WHITE YLW YELLOW GRN GREEN BLK DB1 YLW 3D057046D indoor ROOM A ROOM B 1 2 3 1 2 3 L N POWER SUPPLY X1M 1 2 3 X2M 1 2 3 L N TFU 102 C YLW YLW YLW BLK WHT GRN YLW BLK WHT RED S A S B HL1 FU3 30A HN1 V4 E2 PCB1 L1 V3 SA1 S45 1 3 GRN GRN YLW outdoor FIELD WIRING L1R HR1 HR2 MRM20 MRM10 BRN...

Page 288: ...2E ELECTRONIC EXPANSION VALVE COIL Y1R REVERSING SOLENOIDE VALVE COIL Z1C FERRITE CORE PROTECTIVE EARTH S20 S21 S40 S70 S80 S45 S90 S91 S92 X11A CONNECTOR 3D057045D indoor ROOM A ROOM B 1 2 3 1 2 3 L N POWER SUPPLY X1M 1 2 3 X2M 1 2 3 L N TFU 102 C YLW YLW YLW BLK WHT GRN YLW BLK WHT RED S A S B HL1 FU3 30A HN1 V4 E2 PCB1 L1 V3 SA1 S45 1 3 GRN GRN YLW outdoor FIELD WIRING L1R HR1 HR2 MRM20 MRM10 B...

Page 289: ...l carefully before using this product The User s Manual provides important safety instructions and warnings Be sure to follow these instructions and warnings If you have any enquiries please contact your local importer distributor and or retailer Cautions on product corrosion 1 Air conditioners should not be installed in areas where corrosive gases such as acid gas or alkaline gas are produced 2 I...

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