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Daikin 2MKS40G2V1B, Service Manual

The Daikin 2MKS40G2V1B is a remarkable air conditioning unit that ensures maximum comfort in any environment. To understand all its features and functionality properly, it is important to have the official Service Manual. You can easily download the manual for free from manualshive.com, equipping you with all the necessary information for a flawless experience.

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Service 
Manual

Inverter Multi for 2 Rooms

G-Series

SiBE12-816_D

[Applied Models]

●

 Inverter Multi : Cooling Only

●

 Inverter Multi : Heat Pump

Summary of Contents for 2MKS40G2V1B

Page 1: ...Service Manual Inverter Multi for 2 Rooms G Series SiBE12 816_D Applied Models Inverter Multi Cooling Only Inverter Multi Heat Pump ...

Page 2: ...S50BAVMB FTXS25J2V1B FDKS25EAVMB FTXS35J2V1B FDKS35EAVMB FTXS42J2V1B FDKS50CVMB FTXS50J2V1B FFQ25B8V1B FFQ35B8V1B FFQ50B8V1B zHeat Pump Outdoor Unit Indoor Unit 2MXS40GV1B FTXG25EV1BW S FVXS25FV1B 2MXS40G2V1B FTXG35EV1BW S FVXS35FV1B 2MXS50GV1B CTXG50EV1BW S FVXS50FV1B 2MXS50G2V1B FTXG25JV1BW S FLXS25BAVMB FTXG35JV1BW S FLXS35BAVMB CTXG50JV1BW S FLXS50BAVMB FTXS20G2V1B FDXS25EAVMB FTXS25G2V1B FDXS...

Page 3: ...e Controller 48 2 1 Wired Remote Controller 48 2 2 Wireless Remote Controller 49 3 Outdoor Unit 50 3 1 2MK X S40 50GV1B 2MK X S40 50G2V1B 50 Part 4 Function and Control 52 1 Function of Indoor Unit RA Models 53 1 1 Temperature Control 53 1 2 Frequency Principle 53 1 3 Operation Starting Control 55 1 4 Airflow Direction Control 56 1 5 Fan Speed Control for Indoor Units 58 1 6 Program Dry Operation ...

Page 4: ...A1 A3 122 2 3 FTXG E CTXG E FLK X S FDK X S Series ARC433B41 B67 B68 B69 B76 149 3 SA Indoor Unit FFQ Series 168 3 1 BRC1D528 168 3 2 BRC7E530W 531W 183 Part 6 Service Diagnosis 195 1 Troubleshooting with LED 197 1 1 Indoor Unit 197 1 2 Outdoor Unit 198 2 Problem Symptoms and Measures 199 3 Service Check Function 200 3 1 RA Indoor Unit F C TXG FTXS FVXS FLK X S FDK X S Series 200 3 2 SA Indoor Uni...

Page 5: ... 244 7 10 DC Voltage Current Sensor Abnormality 246 7 11 Thermistor or Related Abnormality Outdoor Unit 247 7 12 Electrical Box Temperature Rise 249 7 13 Radiation Fin Temperature Rise 250 7 14 Output Overcurrent Detection 252 7 15 Refrigerant Shortage 254 7 16 Low voltage Detection or Over voltage Detection 256 7 17 Outdoor Unit PCB Abnormality or Signal Transmission Error 257 7 18 Unspecified Vo...

Page 6: ...Pump Down Operation 298 2 Forced Cooling Operation 299 3 Trial Operation 300 3 1 RA Indoor Unit F C TXG FTXS FVXS FLK X S FDK X S Series 300 3 2 SA Indoor Unit FFQ Series 302 4 Field Settings 303 4 1 RA Indoor Unit F C TXG FTXS FVXS FLK X S FDK X S Series 303 4 2 SA Indoor Unit FFQ Series 307 4 3 Outdoor Unit 314 5 Application of Silicon Grease to a Power Transistor and a Diode Bridge 315 Part 9 A...

Page 7: ...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 8: ...electrical 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 9: ... 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 fir...

Page 10: ...event children from swallowing it If a child swallows the coin battery see a doctor immediately Warning Caution Installation of a leakage breaker is necessary in some cases depending on the conditions of the installation site to prevent electrical shocks Do not install the equipment in a place where there is a possibility of combustible gas leaks If the combustible gas leaks and remains around the...

Page 11: ...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 12: ...SiBE12 816_D 1 List of Functions Part 1 List of Functions 1 Functions 2 1 1 Cooling Only 2 1 2 Heat Pump 5 ...

Page 13: ...lity Auto Restart after Power Failure 3 D Airflow Self Diagnosis Digital LED Display COMFORT AIRFLOW Operation Wiring Error Check Function Comfort Control Auto Fan Speed Anti Corrosion Treatment of Outdoor Heat Exchanger Indoor Unit Quiet Operation Flexibility Multi Split Split Type Compatible Indoor Unit NIGHT QUIET Mode Automatic H P C O Compatible Indoor Unit OUTDOOR UNIT QUIET Operation Manual...

Page 14: ...e 3 D Airflow Self Diagnosis Digital LED Display COMFORT AIRFLOW Operation Wiring Error Check Function Comfort Control Auto Fan Speed Anti Corrosion Treatment of Outdoor Heat Exchanger Indoor Unit Quiet Operation Flexibility Multi Split Split Type Compatible Indoor Unit NIGHT QUIET Mode Automatic H P C O Compatible Indoor Unit OUTDOOR UNIT QUIET Operation Manual Flexible Power Supply Correspondenc...

Page 15: ...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 Function NIGHT QUIET Mode Automatic Anti Corrosion Treatment of Outdoor Heat Exchanger OUTDOOR UNIT QUIET Operation Manual Flexibility Multi Split Split Type Compatible Indoor Unit 2 Area INTELLIGENT EYE Operation H P C ...

Page 16: ...isplay 3 D Airflow Wiring Error Check Function COMFORT AIRFLOW Operation Anti Corrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Indoor Unit Quiet Operation Flexibility Multi Split Split Type Compatible Indoor Unit NIGHT QUIET Mode Automatic OUTDOOR UNIT QUIET Operation Manual H P C O Compatible Indoor Unit INTELLIGENT EYE Operation Flexible Power Supply Correspondence 2 ...

Page 17: ...3 D Airflow Wiring Error Check Function COMFORT AIRFLOW Operation Anti Corrosion Treatment of Outdoor Heat Exchanger Comfort Control Auto Fan Speed Indoor Unit Quiet Operation Flexibility Multi Split Split Type Compatible Indoor Unit NIGHT QUIET Mode Automatic OUTDOOR UNIT QUIET Operation Manual H P C O Compatible Indoor Unit INTELLIGENT EYE Operation Flexible Power Supply Correspondence 2 Area IN...

Page 18: ...elf Diagnosis Digital LED Display 3 D Airflow Wiring Error Check Function COMFORT AIRFLOW Operation Anti Corrosion 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 Power Supply Correspondence OUTDOOR UNIT QUIET Operation Manual H...

Page 19: ...t Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check Function COMFORT AIRFLOW Operation Anti Corrosion 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 Power Supply Correspondence OUTDOOR UNIT QUIET Operation Manua...

Page 20: ... Durability Auto Restart after Power Failure COMFORT AIRFLOW Operation Self Diagnosis Digital LED Display Comfort Control Auto Fan Speed Wiring Error Check Function Indoor Unit Quiet Operation Anti Corrosion Treatment of Outdoor Heat Exchanger NIGHT QUIET Mode Automatic Flexibility Multi Split Split Type Compatible Indoor Unit OUTDOOR UNIT QUIET Operation Manual H P C O Compatible Indoor Unit 2 Ar...

Page 21: ...SiBE12 816_D Specifications 10 Part 2 Specifications 1 Specifications 11 1 1 Cooling Only Indoor Unit 11 1 2 Cooling Only Outdoor Unit 18 1 3 Heat Pump Indoor Unit 20 1 4 Heat Pump Outdoor Unit 29 ...

Page 22: ... 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 18 0 φ 18 0 Drawing No 3D059727 3D059728 Model FTXS35G2V1B FTXS42G2V1B Rated Capacity 3 5 kW Class 4 2 kW Class Front Panel Color White White Airflow Rates H m min cfm 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 Cross Flow Fan Cross Flow Fan Motor Output W 23 23 Speed St...

Page 23: ...irflow Rates H m min cfm 9 4 332 10 8 381 M 7 4 261 7 9 279 L 5 5 194 5 2 184 SL 4 1 145 3 7 131 Fan Type Cross Flow Fan Cross Flow Fan Motor Output W 23 23 Speed Steps 5 Steps Quiet Auto 5 Steps Quiet Auto Air Direction Control Right Left Horizontal Downward Right Left Horizontal Downward Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 09 0 08 ...

Page 24: ...dB A 61 61 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Piping Connections Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain Indoor Unit mm I D φ 14 0 O D φ 18 0 I D φ 14 0 O D φ 18 0 Outdoor Unit I D φ 15 9 Hole I D φ 15 9 Hole Drawing No 3D070571A 3D070572A Model FTXS50J2V1B Rated Capacity 5 0 kW Class Front Panel Color White Airflow Rates H m min cfm 11 6 410 M 9 2 325 L 7 0...

Page 25: ...Mass kg 18 18 Operation Sound H M L SL dB A 38 32 26 23 39 33 27 24 Sound Power dB A 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 3D059858 3D059859 Model FVXS50FV1B Rated Capacity 5 0 kW Class Front Panel Color White Airflow Rates H m min cfm 10 7 378 M 9 2 326 L 7 8 274 SL 6 6...

Page 26: ... Weight Gross Mass kg 22 22 Operation Sound H M L SL dB A 37 34 31 28 38 35 32 29 Sound Power dB A 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 φ 18 0 φ 18 0 Drawing No 3D059861 3D059862 Model FLKS50BAVMB Rated Capacity 5 0 W Class Front Panel Color Almond White Airflow Rates H m min cfm 11 4 402 M 10 ...

Page 27: ...ternal Static Pressure Pa 30 30 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 3D060036 3D060037 Model FDKS50CVMB Rated Capacity 5 0 kW Class Front Panel Color Airflow Rates H m min cfm 12 0 424 M 11 0 388 L 10 0 353 SL 8 4 297 Fan Type Sirocco Fan Motor...

Page 28: ...9 5 24 5 32 0 25 0 Sound Power dB A 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 3D060406 3D060408 Model FFQ50B8V1B Rated Capacity 5 0 kW Class Decoration Panel Color White Dimensions H W D mm 55 700 700 Airflow Rates H m min cfm 12 0 424 M L...

Page 29: ... 612 906 364 Weight Mass kg 38 38 Gross Weight Gross Mass kg 43 43 Operation Sound dB A 47 47 Sound Power dB A 62 62 Piping Connection Liquid mm φ 6 4 2 φ 6 4 2 Gas mm φ 9 5 2 φ 9 5 2 Drain mm φ 18 φ 18 Heat Insulation Both Liquid Gas Pipes Both Liquid Gas Pipes No of Wiring Connection 3 for Power Supply 4 for Interunit Wiring 3 for Power Supply 4 for Interunit Wiring Max Piping Length m 30 for To...

Page 30: ... Weight Gross Mass kg 47 47 Operation Sound dB A 48 48 Sound Power dB A 63 63 Piping Connection Liquid mm φ 6 4 2 φ 6 4 2 Gas mm φ 9 5 1 φ 12 7 1 φ 9 5 1 φ 12 7 1 Drain mm φ 18 0 φ 18 0 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes No of Wiring Connection 3 for Power Supply 4 for Interunit Wiring 3 for Power Supply 4 for Interunit Wiring Max Interunit Piping Length m 30 for T...

Page 31: ...and Gas Pipes Piping Connection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ 18 0 φ 18 0 Drawing No 3D051101 3D051102 Model FTXG35EV1BW FTXG35EV1BS Cooling Heating Cooling Heating Rated Capacity 3 5 kW Class 3 5 kW Class Front Panel Color Mat Crystal White Mat Crystal Silver Airflow Rates H m min cfm 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...

Page 32: ...quid mm φ 6 4 φ 6 4 Gas mm φ 12 7 φ 12 7 Drain mm φ 18 0 φ 18 0 Drawing No 3D051105 3D051106 Model FTXG25JV1BW FTXG25JV1BS Cooling Heating Cooling Heating Rated Capacity 2 5 kW Class 2 5 kW Class Front Panel Color White Silver Airflow Rates H m min cfm 8 8 311 9 6 339 8 8 311 9 6 339 M 6 8 240 7 9 279 6 8 240 7 9 279 L 4 7 166 6 2 219 4 7 166 6 2 219 SL 3 8 134 5 4 191 3 8 134 5 4 191 Fan Type Cro...

Page 33: ... 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ 16 0 or φ 18 0 φ 16 0 or φ 18 0 Drawing No 3D066437A 3D066438A Model CTXG50JV1BW CTXG50JV1BS Cooling Heating Cooling Heating Rated Capacity 5 0 kW Class 5 0 kW Class Front Panel Color White Silver Airflow Rates H m min cfm 10 5 371 11 4 402 10 5 371 11 4 402 M 8 7 307 9 8 346 8 7 307 9 8 346 L 6 9 244 8 1 286 6 9 244 8 1 286 SL 5 9 208 7 1 251 5 9 208 7 1 251...

Page 34: ...ection Liquid mm φ 6 4 φ 6 4 Gas mm φ 9 5 φ 9 5 Drain mm φ 18 0 φ 18 0 Drawing No 3D059722 3D059723 Model FTXS35G2V1B FTXS42G2V1B Cooling Heating Cooling Heating Rated Capacity 3 5 kW Class 4 2 kW Class Front Panel Color White White Airflow Rates H m min cfm 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...

Page 35: ... Washable Mildew Proof Running Current Rated A 0 12 0 12 0 11 0 15 0 14 0 14 Power Consumption Rated W 26 26 26 32 32 32 Power Factor Rated 98 5 94 2 98 5 97 0 99 4 95 2 Temperature Control Microcomputer Control Dimensions H W D mm 295 800 215 Packaged Dimensions H W D mm 274 870 366 Weight Mass kg 10 Gross Weight Gross Mass kg 13 Operation Sound H M L SL dB A 43 39 34 31 44 39 34 31 Sound Power d...

Page 36: ... Gross Weight Gross Mass kg 18 18 Operation Sound H M L SL dB A 38 32 26 23 38 32 26 23 39 33 27 24 39 33 27 24 Sound Power dB A 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 3D059825 3D059826 Model FVXS50FV1B Cooling Heating Rated Capacity 5 0 kW Class Front Panel Color W...

Page 37: ...ht Mass kg 16 16 Gross Weight Gross Mass kg 22 22 Operation Sound H M L SL dB A 37 34 31 28 37 34 31 29 38 35 32 29 39 36 33 30 Sound Power dB A 53 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 φ 18 0 φ 18 0 Drawing No 3D059828 3D059829 Model FLXS50BAVMB Cooling Heating Rated Capacity 5 0 kW Class Front...

Page 38: ...1 29 Sound Power dB A 53 53 53 53 External Static Pressure Pa 30 30 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 3D060029 3D060030 Model FDXS50CVMB Cooling Heating Rated Capacity 5 0 kW Class Front Panel Color Airflow Rates H m min cfm 12 0 424 12 0 42...

Page 39: ...peration Sound H L dB A 29 5 24 5 32 0 25 0 Sound Power dB A 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 3D060405 3D060407 Model FFQ50B8V1B Cooling Heating Rated Capacity 5 0 kW Class Decoration Panel Color White Dimensions H W D mm 55 700 7...

Page 40: ...W D mm 612 906 364 612 906 364 Weight Mass kg 38 38 Gross Weight Gross Mass kg 43 43 Operation Sound dB A 47 48 47 48 Sound Power dB A 62 62 Piping Connection Liquid mm φ 6 4 2 φ 6 4 2 Gas mm φ 9 5 2 φ 9 5 2 Drain mm φ 18 φ 18 Heat Insulation Both Liquid Gas Pipes Both Liquid Gas Pipes No of Wiring Connection 3 for Power Supply 4 for Interunit Wiring 3 for Power Supply 4 for Interunit Wiring Max P...

Page 41: ...Mass kg 42 42 Gross Weight Gross Mass kg 47 47 Operation Sound dB A 48 50 48 50 Sound Power dB A 63 63 Piping Connection Liquid mm φ 6 4 2 φ 6 4 2 Gas mm φ 9 5 1 φ 12 7 1 φ 9 5 1 φ 12 7 1 Drain mm φ 18 0 φ 18 0 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes No of Wiring Connection 3 for Power Supply 4 for Interunit Wiring 3 for Power Supply 4 for Interunit Wiring Max Interunit...

Page 42: ... Indoor Unit 32 1 1 Wall Mounted Type 32 1 2 Floor Standing Type 40 1 3 Floor Ceiling Suspended Dual Type 42 1 4 Duct Connected Type 44 1 5 Ceiling Mounted Cassette Type 46 2 Remote Controller 48 2 1 Wired Remote Controller 48 2 2 Wireless Remote Controller 49 3 Outdoor Unit 50 3 1 2MK X S40 50GV1B 2MK X S40 50G2V1B 50 ...

Page 43: ...onnector for reduction motor front panel mechanism 8 S51 Connector for front panel limit switch 9 H1B H2 H3 Connector for terminal board 10 FG Terminal for earth 11 JA Address setting jumper Refer to page 303 for detail JB Fan speed setting when compressor stops for thermostat OFF JC Power failure recovery function auto restart Refer to page 306 for detail 12 LED A LED for service monitor green 13...

Page 44: ...oard Connector Wiring Diagram PCB Detail PCB 1 Control PCB PCB 2 Signal Receiver PCB PCB 3 INTELLIGENT EYE Sensor PCB 2P165085 1 S1 S49 S41 S51 S46 FU H1B H2 FG V1 LED A S21 S32 S36 H3 JB JA JC 2P165085 1 RTH1 SW1 LED2 LED3 LED4 S47 3P043610 2 S36 ...

Page 45: ...nism and limit switch 6 S46 Connector for signal receiver display PCB 7 S200 Connector for fan motor 8 H1 H2 H3 FG Connector for terminal board 9 JB Fan speed setting when compressor stops for thermostat OFF JC Power failure recovery function auto restart Refer to page 306 for detail 10 LED A LED for service monitor green 11 F1U Fuse 3 15 A 250 V 12 V1 Varistor 1 S51 Connector for control PCB 2 S5...

Page 46: ...Indoor Unit SiBE12 816_D 35 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB 1 Control PCB S42 S41 S32 JB JC S200 H3 H2 FG S46 S21 S25 LED A V1 F1U H1 2P254830 1 ...

Page 47: ...SiBE12 816_D Indoor Unit Printed Circuit Board Connector Wiring Diagram 36 PCB 3 INTELLIGENT EYE Sensor PCB PCB 2 Signal Receiver Display PCB S52 S51 S1W JA H2P H1P 3P254832 1 S36 3P255914 1 ...

Page 48: ...or for display PCB 7 S47 Connector for signal receiver PCB 8 H1 H2 H3 FG Connector for terminal board 9 JA Address setting jumper Refer to page 303 for detail JB Fan speed setting when compressor stops for thermostat OFF JC Power failure recovery function auto restart Refer to page 306 for detail 10 LED A LED for service monitor green 11 FU1 F1U Fuse 3 15 A 250 V 12 V1 Varistor 1 S48 Connector for...

Page 49: ...SiBE12 816_D Indoor Unit Printed Circuit Board Connector Wiring Diagram 38 PCB Detail PCB 1 Control PCB V1 FU1 S1 S41 S21 S47 JB JA JC S46 S25 LED A S32 FG H1 H2 H3 2P206687 1 ...

Page 50: ...it SiBE12 816_D 39 Printed Circuit Board Connector Wiring Diagram PCB 2 Signal Receiver PCB PCB 3 Display PCB PCB 4 INTELLIGENT EYE Sensor PCB 3P210728 1 S48 3P210728 1 RTH1 SW1 S49 LED3 LED2 LED1 3EB86013 1 S26 ...

Page 51: ...onnector for display PCB 8 S48 Connector for sensor PCB 9 H1 H2 H3 Connector for terminal board 10 E1 Terminal for earth 11 V1 V2 Varistor 12 JA Address setting jumper Refer to page 303 for detail JB Fan speed setting when compressor stops for thermostat OFF JC Power failure recovery function Refer to page 306 for detail 13 FU1 F1U Fuse 3 15A 250V 14 LED A LED for service monitor green 1 S27 Conne...

Page 52: ...g Diagram PCB Detail PCB 1 Sensor PCB PCB 2 Control PCB PCB 3 Service PCB PCB 4 Display PCB LED3 does not function S49 RTH2 3P191450 1 S1 LED A S21 S41 S42 S26 S46 S48 S32 JC JA JB V1 V2 H1 FU1 2P191446 1 H2 H3 E1 S27 SW4 SW2 4 3P191448 1 S47 SW1 LED2 LED1 3P191447 1 ...

Page 53: ...power supply PCB 8 JA Address setting jumper Refer to page 303 for detail JB Fan speed setting when compressor stops for thermostat OFF JC Power failure recovery function Refer to page 306 for detail 9 SW2 Select switch for installation ceiling or floor Refer to page 306 for detail 10 LED A LED for service monitor green 1 S36 Connector for control PCB 2 H1 H2 H3 Connector for terminal board 3 H4 H...

Page 54: ... Control PCB PCB 2 Power Supply PCB PCB 3 Display PCB PCB 4 Signal Receiver PCB SW2 S7 S6 S24 JC JB JA S37 S32 S26 S21 LED A 2P084352 3 S36 FU1 H2 H3 H4 H5 H6 H1 V1 2P084361 1 LED3 LED2 LED1 S25 2P084377 5 SW1 S31 RTH PbF SW1 I RTH WLU 3 C1 C2 C3 EX511 REV 12 S27 S27 2P084377 5 PHOTO 2P084377 ...

Page 55: ...ermistor 6 H1 H2 H3 Connector for terminal board 7 GND Connector for terminal board earth 8 JA Address setting jumper Refer to page 303 for detail JB Fan speed setting when compressor stops for thermostat OFF JC Power failure recovery function auto restart Refer to page 306 for detail 9 LED A LED for service monitor green 10 FU1 F1U Fuse 3 15A 250V 11 V1 V1TR Varistor 1 S1 Connector for control PC...

Page 56: ... SiBE12 816_D 45 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB 1 Control PCB PCB 2 Display PCB S1 H2 S7 S26 S32 JC JB JA S21 2P131149 1 LED A FU1 H1 H3 V1 GND S1 LED3 LED2 RTH1 LED1 SW1 2P084375 1 ...

Page 57: ...hanger thermistor 5 X19A Connector for room temperature thermistor 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 board for inter unit wiring 10 X33A Connector for wiring adaptor PCB option 11 X35A Connector for group control adaptor option 12 X36A Connector for ...

Page 58: ...Indoor Unit SiBE12 816_D 47 Printed Circuit Board Connector Wiring Diagram PCB Detail A1P Control PCB X25A X18A X61A X36A X40A X17A X15A HAP X5A X35A X24A X60A X19A X11A X33A X10A X27A X20A 2P095006 8 ...

Page 59: ...ring Diagram 48 2 Remote Controller 2 1 Wired Remote Controller 2 1 1 BRC1D528 Connectors and Other Parts PCB Detail 1 P1 P2 Terminal for indoor unit 2 R1T Room temperature thermistor 3 SS1 MAIN SUB setting switch Refer to page 310 for detail R1T P2 P1 SS1 2P113638 2 ...

Page 60: ...D6 do not function 1 X1A Connector for display PCB 2 X2A Connector for control PCB 3 SS1 MAIN SUB setting switch SS2 Address setting switch Refer to page 311 for detail 1 X1A Connector for signal receiver PCB 2 BS1 Forced operation ON OFF button 3 LED1 H1P LED for operation red 4 LED2 H2P LED for timer green 5 LED3 H3P LED for filter cleaning sign red 6 LED4 H4P LED for defrost operation orange 3P...

Page 61: ...r for thermistors gas pipe 9 S92 Connector for thermistors liquid pipe 10 E E2 Terminal for earth 40 class Terminal for earth 50 class 11 HL1 HN1 Connector for terminal board power supply 12 HR1 HR2 Connector for reactor 13 S A Connector for terminal board room A outdoor transmission 14 S B Connector for terminal board room B outdoor transmission 15 U V W Connector for compressor 16 LED A LED for ...

Page 62: ... Diagram PCB Detail 40 class 50 class HN2 HL1 E FU3 FU1 FU2 HR1 HR2 U V W J3 J4 J5 2P190760 2 S70 S45 S40 S92 S90 S91 S20 S21 S80 V1 V3 V4 LED A S B S A 2P197402 1 HR2 HR1 FU2 FU1 E2 HL1 HN1 FU3 V4 V3 V1 S A S B S80 S21 LED A S20 S91 S92 S90 S40 S70 S45 J3 U V W J4 J5 ...

Page 63: ... 1 14 Inverter POWERFUL Operation 69 1 15 Other Functions 71 2 Function of Indoor Unit SA Models 73 2 1 Drain Pump Control 73 2 2 Thermostat Sensor in Remote Controller 75 2 3 Freeze Prevention Control 77 2 4 Hot Start Control In Heating Operation Only 78 3 Function of Thermistor 79 4 Control Specification 81 4 1 Mode Hierarchy 81 4 2 Frequency Control 83 4 3 Controls at Mode Changing Start up 86 ...

Page 64: ... during normal operation 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...

Page 65: ...eating and cooling Once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power Frequency Limits The following functions regulate the minimum and maximum frequency Forced Cooling Operation Refer to page 299 for detail 50 Hz 60 Hz Refrigerant circulation rate high high f low f freq variable Refrigerant circulation rate low high speed low spee...

Page 66: ...he fan banned area 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 R14049 Fully close OFF Start ON Flap Under running control Under operation mode control Under operation mode control Fan D Fully open Fully open Fully cl...

Page 67: ...e Angle Louvers The louvers made of elastic synthetic resin provide a wide range of airflow that guarantees a comfortable air distribution Auto Swing The following table explains the auto swing process for cooling dry heating and fan Wall Mounted Type Floor Standing Type Series Vertical Swing up and down Horizontal Swing right and left Cooling Dry Heating Fan FTXG E CTXG E R3294 R3293 R3295 R3296 ...

Page 68: ...are alternated and the airflow direction changes in the order shown in the following diagram 1 The vertical blades louvers move from the right to the left 2 The horizontal blades flaps move downward 3 The vertical blades louvers move from the left to the right 4 The horizontal blades flaps move upward COMFORT AIRFLOW Operation Wall Mounted Type The vertical swing flap is controlled not to blow the...

Page 69: ...rawing explains the principle of fan speed control for cooling Wall Mounted Type Floor Standing Type In automatic fan speed operation upper limit is at M tap in 30 minutes from the operation start Floor Ceiling Suspended Dual Type Duct Connected Type Heating On heating mode the fan speed is regulated according to the indoor heat exchanger temperature and the difference between the room thermistor ...

Page 70: ...re inoperable in this mode Detail The microcomputer automatically sets the temperature and airflow rate The difference between the room thermistor temperature 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...

Page 71: ... mode switching point are as follows Tr means the room thermistor temperature 1 Heating Cooling switching point Tr Tt 3 0 C wall mounted type FTXG J CTXG J series Tr Tt 2 5 C other models 2 Cooling Heating switching point Tr Tt 2 5 C 3 Thermostat ON OFF point is the same as the ON OFF point of cooling or heating operation 4 During initial operation Tr Ts Cooling operation Tr Ts Heating operation W...

Page 72: ... resumes from defrost control in any zones except A The operation turns on in any zones except A The monitoring time has passed while the temperature difference is in the zone B Cooling Dry 10 minutes Heating 10 seconds Cooling Dry Wall Mounted Type Floor Standing Type Floor Ceiling Suspended Dual Type Duct Connected Type B A OFF ON C Room thermistor temperature target temperature 1 5 C R12319 Coo...

Page 73: ...tanding Type Floor Ceiling Suspended Dual Type Duct Connected Type Refer to Temperature Control on page 53 for detail OFF ON B A C 1 5 C 2 0 C 0 5 C Room thermistor temperature target temperature R11894 B A OFF ON C 1 5 C 1 0 C Room thermistor temperature target temperature 0 C R12320 B A OFF ON C 1 5 C 0 5 C 1 0 C Room thermistor temperature target temperature R12392 ...

Page 74: ...able sleeping conditions and also conserves electricity Cooling Wall Mounted Type Floor Standing Type Floor Ceiling Suspended Dual Type Duct Connected Type Heating R10870 TIMER operation NIGHT SET Circuit ON Target temperature 0 5 C temperature shift Operation stops at the set hours 1 hour 0 5 C 0 5 C 0 5 C R14060 0 5 C temperature shift A 0 5 C temperature shift B Target temperature remains the s...

Page 75: ...wireless remote controller by pushing the ECONO button When this function is activated the maximum capacity decreases The remote controller can send the ECONO command when the unit is in cooling heating dry or automatic operation This function can only be set when the unit is running Pressing the ON OFF button on the remote controller cancels the function This function and POWERFUL operation canno...

Page 76: ...OME LEAVE is indicated on the display of the remote controller The indoor unit is operated according to the set temperature and airflow rate for HOME LEAVE which were pre set in the memory of the remote controller The LED red of indoor unit representing HOME LEAVE lights up It goes out when the operation is stopped 3 End of Function The function ends when the HOME LEAVE button is pressed again dur...

Page 77: ...put The microcomputer in the 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 sec it judges human is in the room as the motion signal is ON 2 area INTELLIGENT EYE sensor is divided into 2 areas and detects humans in each area Image of 2 area INTELLIGENT EYE 1 sec s...

Page 78: ...nd B Shift 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 is OFF for 20 minutes in both area A and B the unit starts energy saving operation Others For dry operatio...

Page 79: ...e motion signal is ON 2 The motions for example in cooling When a microcomputer does not have a signal from the sensor in 20 minutes it judges that nobody is in the room and operates the unit in temperature shifted from the target temperature Cooling Dry 2 C higher Heating 2 C lower Auto according to the operation mode at that time 1 In case of FAN mode the fan speed reduces by 60 rpm Others For d...

Page 80: ...lamp of the indoor unit Operating status can be monitored even in automatic operation in accordance with the mode of actual operation The lamp color changes according to the operation AUTO Red Blue DRY Green COOL Blue HEAT Red FAN White TIMER Orange Operation mode Fan speed Target temperature COOL H tap A rpm 18 C DRY Dry rotating speed A rpm Lowered by 2 2 5 C HEAT H tap A rpm 30 32 C FAN H tap A...

Page 81: ...ame time 5C is displayed on the LCD 2 Select L light with the Temp or button 3 Press the Mode button to enter the brightness setting mode 4 Press the Temp or button to adjust the brightness of the multi colored indicator lamp 5 Press the Mode button for 5 seconds to exit from the brightness setting mode When the remote controller is left untouched for 60 seconds it returns to the normal mode also ...

Page 82: ...orced cooling operation can be started by pressing the ON OFF button for 5 to 9 seconds while the unit is not operating Refer to page 299 for detail Note When the ON OFF button is pressed for 10 seconds or more the forced cooling operation is stopped 1 15 4 Titanium Apatite Photocatalytic Air Purifying Filter This filter combines the Air Purifying Filter and Titanium Apatite Photocatalytic Deodori...

Page 83: ...d in the same condition as before the power failure Note It takes 3 minutes to restart the operation because the 3 minute standby function is activated 1 15 8 WEEKLY TIMER Operation Up to 4 timer settings can be saved for each day of the week up to 28 settings in total Those 3 items of ON OFF temperature and time can be set Refer to WEEKLY TIMER Operation on the following pages for detail FTXG J C...

Page 84: ... cooling thermostat is ON 2 1 2 When the Float Switch is Tripped While the Cooling Thermostat is OFF 3 Malfunction residual The remote controller displays A3 and the air conditioner comes to an abnormal stop if the float switch is turned OFF and not turned ON again within 5 minutes while the cooling thermostat is OFF The remote controller displays A3 and the indoor unit stops Thermostat running Fl...

Page 85: ...curred AF is then displayed as operation continues 5 Malfunction residual The remote controller displays A3 and the air conditioner comes to an abnormal stop if the float switch is OFF for more than 5 minutes in the case of 4 The remote controller displays A3 and the indoor unit stops Thermostat running Humidifier Float switch Drain pump ON OFF ON OFF ON OFF ON OFF Reset 5 min 5 sec 5 min R12935 T...

Page 86: ...emperature has changed from 18 C to 30 C A F This example also assumes there are several other air conditioners and the suction temperature changes even when the thermostat sensor is off Body thermostat sensor is used for temperatures from 18 C to 23 C A C Remote controller thermostat sensor is used for temperatures from 23 C to 27 C C E Body thermostat sensor is used for temperatures from 27 C to...

Page 87: ...et temperature in the figure above is 24 C and the suction temperature has changed from 18 C to 28 C A D This example also assumes there are several other air conditioners and the suction temperature changes even when the thermostat sensor is off Body thermostat sensor is used for temperatures from 18 C to 25 C A C Remote controller thermostat sensor is used for temperatures from 25 C to 28 C C D ...

Page 88: ...ance with the following conditions and is also set in accordance with the conditions given below Conditions for starting Temperature is 1 C or less for total of 40 min or temperature is 5 C or less for total of 10 min Conditions for cancelling Temperature is 7 C or more for 10 min continuously Ex Case where temperature is 5 C or less for total of 10 min Freeze prevention control Normal operation F...

Page 89: ...apacity Detail TH2 Temperature C detected with the gas thermistor Tc High pressure equivalent saturated temperature Defrost ending or oil return ending or Thermostat ON The fan is not OFF before initiating the hot start LL The fan is OFF before initiating the hot start OFF Hot start control Hot start in progress Normal operation Normal operation H L remote controller setting LL OFF Remote controll...

Page 90: ...eat exchanger temperature the discharge pipe thermistor is judged as disconnected 3 In cooling operation the outdoor heat exchanger thermistor is used for high pressure protection B Discharge Pipe Thermistor 1 The discharge pipe thermistor is used for controlling discharge pipe temperature If the discharge pipe temperature used in place of the inner temperature of the compressor rises abnormally t...

Page 91: ...trol If the indoor heat exchanger temperature rises abnormally the operating frequency becomes lower or the operation halts 5 In heating operation the indoor heat exchanger thermistor is used for detecting disconnection of the discharge pipe thermistor When the discharge pipe temperature becomes lower than the maximum indoor heat exchanger temperature the discharge pipe thermistor is judged as dis...

Page 92: ...rded as cooling operation An indoor fan operation cannot be made in a multiple indoor unit A forced fan command to the indoor unit from the outdoor unit is made during forced operation Air conditioner control mode Forced operating mode Forced cooling Check incorrect wiring Normal operating mode Cooling Stop mode except for cooling modes by indoor command Preheat operation During C capacitor is dis...

Page 93: ...odes conflict with each other 1 The system follows the mode which is set first First push first set 2 For the rooms where the different mode is set standby mode is activated The operation lamp blinks Command from the first room Command from the second room Operation of the first room Operation of the second room Cooling Heating Cooling Standby Cooling Fan Cooling Fan Heating Cooling Heating Standb...

Page 94: ...ermine upper limit frequency The minimum value is set as the upper limit frequency among the frequency upper limits of the following functions Compressor protection input current discharge pipe temperature low Hz high pressure limit freeze up protection 3 Determine lower limit frequency The maximum value is set as the lower limit frequency among the frequency lower limits of the following function...

Page 95: ...as a power supply frequency Indoor Frequency Command D signal The difference between a room thermistor temperature and the target temperature is taken as the D signal and is used for frequency command Values depend on the type of indoor 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 Ou...

Page 96: ...ariation width When the difference between input current and input current drooping value is less than 1 5 A the frequency increase width must be limited 4 Frequency management when other controls are functioning When each frequency is drooping Frequency management is carried out only when the frequency droops For limiting lower limit Frequency management is carried out only when the frequency ris...

Page 97: ...way valve is carried out after the operation stopped Detail OFF delay switch of four way valve The four way valve coil is energized for 150 seconds after the operation is stopped 4 3 3 Four Way Valve Operation Compensation Outline At the beginning of the operation as the four way valve is switched acquire the differential pressure to activate the four way valve by having output frequency which is ...

Page 98: ...the upper limit of frequency is set to keep this temperature from going up further Detail 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 R13528 Hz Frequency B A C D E F Zone Control Stop zone When the temperature reaches the stop zone the compressor stops Drooping zone The upper limit of frequency decreases Keep zone The upper limit of frequency is...

Page 99: ...sent maximum frequency goes on Reset zone Limit of the frequency is canceled Limitation of current drooping and stop value according to the outdoor temperature The current droops when outdoor temperature becomes higher than a certain level depending on the model 4 6 Freeze up Protection Control Outline During cooling operation the signals sent from the indoor unit allow the operating frequency lim...

Page 100: ...ON OFF control when operation starts stops The outdoor fan is turned ON when the operation starts The outdoor fan is turned OFF when the operation stops 5 Fan control while forced operation The outdoor fan is controlled as well as normal operation while the forced operation 6 Fan speed control while indoor outdoor quiet operation The rotation speed of the outdoor fan is reduced by the command of t...

Page 101: ...rost The starting conditions is determined with the outdoor temperature and the outdoor heat exchanger temperature The system is in heating operation The compressor operates for 6 minutes More than 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 i...

Page 102: ...id pipe isothermal control during heating 4 Gas pipe isothermal control during cooling 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 4 Electronic expansion valve control for oil recovery 5 Electronic expansion valve control when a discharge pipe temperature is...

Page 103: ...ntrol when starting Target discharge pipe temperature control Defrost control Pressure equalizing control Open control when starting Continue Pressure equalizing control SC subcooling control Control when frequency changed Control for abnormally high discharge pipe temperature Heat exchanger isothermal control during heating Oil recovery control Anti icing control for indoor unit When power is tur...

Page 104: ...ompression 4 11 5 High Discharge Pipe Temperature When the compressor is operating if the discharge pipe temperature exceeds a certain value the electronic expansion valve opens and the refrigerant runs to the low pressure side This procedure lowers the discharge pipe temperature 4 11 6 Oil Recovery Function Outline The electronic expansion valve opening in the cooling stopped room is set as to op...

Page 105: ...e temperature Previous discharge pipe temperature 4 11 9 SC Subcooling Control Outline The liquid pipe temperature and the heat exchanger temperature are detected and the electronic expansion valve opening is compensated 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 electro...

Page 106: ...llowing condition is fulfilled the discharge pipe thermistor disconnection is ascertained Discharge pipe temperature 6 C highest indoor heat exchanger temperature Adjustment when the thermistor is disconnected When the disconnection is ascertained the compressor continues operation for 9 minutes and then stops When the compressor stops repeatedly the system is shut down 4 11 11Control when frequen...

Page 107: ...in the normal operation when refrigerant is insufficient and refrigerant shortage is detected by checking a power consumption II Detecting by discharge pipe temperature If the discharge pipe temperature is higher than the target discharge pipe temperature and the electronic expansion valve is fully open for more than the specified time it is regarded as refrigerant shortage Refer to page 254 for d...

Page 108: ...re in the operation stopped room becomes below the specified temperature for the specified time the electronic expansion valve is opened in the operation stopped room as specified and the fully closed operation is carried out After this if freezing abnormality occurs more than specified time the system shuts down as the system abnormality ...

Page 109: ...ystem Configuration 99 2 RA Indoor Unit 100 2 1 FTXG J CTXG J Series ARC466A1 100 2 2 FTXS FVXS Series ARC452A1 A3 122 2 3 FTXG E CTXG E FLK X S FDK X S Series ARC433B41 B67 B68 B69 B76 149 3 SA Indoor Unit FFQ Series 168 3 1 BRC1D528 168 3 2 BRC7E530W 531W 183 ...

Page 110: ...ver 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 and handing ove...

Page 111: ...Red FAN White TIMER Orange INTELLIGENT EYE sensor It detects the movements of people and automatically switches between normal operation and energy saving operation Room temperature sensor It detects the air temperature around the unit Model name plate INTELLIGENT EYE lamp green Signal receiver and Indoor unit ON OFF switch It receives signals from the remote controller When the unit receives a si...

Page 112: ... models Open the front panel Air filter Earth terminal It is inside of this cover Drain hose Air outlet Model name plate Panel support plate Titanium apatite photocatalytic air purifying filter Outdoor temperature sensor back Refrigerant piping and inter unit wiring Air inlet back and side Outdoor Unit ...

Page 113: ... buttons It displays the current settings In this illustration each section is shown with its displays on for the purpose of explanation To use the remote controller aim the transmitter at the indoor unit If there is anything to block signals between the unit and the remote controller such as a curtain the unit will not operate Do not drop the remote controller Do not get it wet The maximum distan...

Page 114: ...ER button Page22 CLOCK button QUIET button Page19 COMFORT button Page15 OFF TIMER button Page21 Page21 22 SELECT button Page21 22 23 MODE selector button Page11 It selects the operation mode AUTO DRY COOL HEAT FAN INTELLIGENT EYE button INTELLIGENT EYE operation It changes the ON OFF TIMER and WEEKLY TIMER settings TIMER CANCEL button COMFORT AIRFLOW operation OUTDOOR UNIT QUIET operation It cance...

Page 115: ...The computer chip works to rid the room of humidity while maintaining the temperature as much as possible It automatically controls temperature and airflow rate so manual adjustment of these functions is unavailable This air conditioner cools the room by blowing the hot air in the room outside so if the outside temperature is high the performance of the air conditioner drops Since this air conditi...

Page 116: ...moderate level helps save energy Cover windows with a blind or a curtain Blocking sunlight and air from outdoors increases the cooling heating effect Clogged air filters cause inefficient operation and waste energy Clean them once in about every 2 weeks The outdoor unit consumes some power to have its electric components work even while it is not operating Connecting outdoor unit RXG25 35 1 15W Ot...

Page 117: ...low Direction and Rate Press when the flaps have reached the desired position is displayed on the LCD The flaps horizontal blades will begin to swing 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 vertical blades should be facing away from the wall If they face the wa...

Page 118: ...n indoor unit quiet operation the airflow rate is set to a weak level In DRY mode the airflow rate setting is not variable Note on the angles of the flaps The flaps swinging range depends on the operation See the figure COOL and DRY operation COMFORT AIRFLOW At smaller airflow rates the cooling heating effect is also smaller If the air conditioner is operated in COOL or DRY operation with the flap...

Page 119: ...eople The flaps will return to the memory position from before COMFORT AIRFLOW operation disappears from the LCD is displayed on the LCD Airflow rate is set to Auto COOL DRY The flaps will go up HEAT The flaps will go down Notes on COMFORT AIRFLOW operation The flaps position will change preventing air from blowing directly on the occupants of the room POWERFUL operation and COMFORT AIRFLOW operat...

Page 120: ...NT EYE operation Press again INTELLIGENT EYE Operation INTELLIGENT EYE is the infrared sensor which detects the human movement If nobody in the room for more than 20 minutes the operation automatically changes to energy saving operation is displayed on the LCD The INTELLIGENT EYE lamp lights up disappears from the LCD The INTELLIGENT EYE lamp goes off ...

Page 121: ...d in the room for 20 minutes the energy saving operation will start This operation changes the temperature 2 C in HEAT 2 C in COOL 1 C in DRY operation from set temperature This operation decreases the airflow rate slightly in FAN operation only Sensor may not detect moving objects further than 7m away Check the application range Sensor detection sensitivity changes according to indoor unit locati...

Page 122: ...OWERFUL operation cannot be used together with ECONO COMFORT AIRFLOW or OUTDOOR UNIT QUIET operation Priority is given to the function of whichever button is pressed last POWERFUL operation can only be set when the unit is running Pressing causes the settings to be canceled and the disappears from the LCD POWERFUL operation will not increase the capacity of the air conditioner if the air condition...

Page 123: ...s on OUTDOOR UNIT QUIET operation This function is available in COOL HEAT and AUTO operation This is not available in FAN and DRY operation POWERFUL operation and OUTDOOR UNIT QUIET operation cannot be used at the same time Priority is given to the function of whichever button is pressed last Even the operation is stopped using the remote controller or the indoor unit ON OFF switch when using OUTD...

Page 124: ...only The maximum running current and power consumption of the air conditioner in ECONO operation vary with the connecting outdoor unit In case the air conditioner and other appliances which require high power consumption are used at same time a circuit breaker may trip if the air conditioner operate with its maximum capacity Running current and power consumption Normal operation ECONO operation Ma...

Page 125: ...the LCD and day of the week are displayed on the LCD NOTE Timer functions are useful for automatically switching the air conditioner on or off at night or in the morning You can also use OFF TIMER and ON TIMER in combination 2 Press until the time setting reaches the point you like Notes on TIMER operation When TIMER is set the present time is not displayed Once you set ON OFF TIMER the time setti...

Page 126: ...from the LCD Each pressing of either button increases or decreases the time setting by 10 minutes Holding down either button changes the setting rapidly and setting time are displayed on the LCD The multi monitor lamp blinks twice The TIMER lamp periodically lights orange and setting time disappear from the LCD and day of the week are displayed on the LCD A sample setting for combining the 2 timer...

Page 127: ...ON ON OFF OFF ON OFF OFF ON Program 1 Program 2 Program 3 Program 4 Up to 4 timer settings can be saved for each day of the week It is convenient if the WEEKLY TIMER is set according to the family s life style Example The same timer settings are made for the week from Monday through Friday while different timer settings are made for the weekend Up to 4 reservations per day and 28 reservations per ...

Page 128: ... are set If not set the day of the week and time 6 00 8 30 17 30 22 00 25 C 27 C Program 1 Program 2 Program 3 Program 4 ON OFF ON OFF Monday Setting Displays Day and number ON OFF Time Temperature 1 Press The day of the week and the reservation number of the current day will be displayed 1 to 4 settings can be made per day Pressing changes the reservation number and the day of the week 3 Press Th...

Page 129: ...e unit operates at 18 C even if it is set at 10 to 17 C HEAT or AUTO The unit operates at 30 C even if it is set at 31 to 32 C To return to the time setting press The set temperature is only displayed when the mode setting is on The time will be set and the temperature blink is displayed on the LCD and WEEKLY TIMER operation is activated A reservation made once can be easily copied and the same se...

Page 130: ...n made once can be copied to another day of the week The whole reservation of the selected day of the week will be copied 2 Press to confirm the day of the week to be copied 4 Press to select the destination day of the week Be sure to direct the remote controller toward the indoor unit and check for a receiving tone and flashing the multi monitor lamp The reservation will be copied to the selected...

Page 131: ...ber of the current day will be displayed Pressing displays the reservation details The mode is switched to setting mode Go to setting mode step 2 Page24 3 Press to exit confirming mode To deactivate WEEKLY TIMER operation CAUTION 2 Press to select the day of the week and the reservation number to be confirmed To change the confirmed reserved settings select the reservation number and press Press w...

Page 132: ...her reservations WEEKLY TIMER operation will be activated The reservations for each day of the week 2 Hold for 5 seconds The reservation of the selected day of the week will be deleted All reservations Hold for 5 seconds while normal display 2 Press to select the day of the week and the reservation number to be deleted 1 Press to select the day of the week to be deleted Be sure to direct the remot...

Page 133: ...G2V1B FTXS20 50J2V1B FVXS25 50FV1B Read Before Operation Names of Parts 123 126 Operation AUTO DRY COOL HEAT FAN Operation 129 129 Adjusting the Airflow Direction 131 133 COMFORT AIRFLOW and INTELLIGENT EYE Operation 135 POWERFUL Operation 138 138 OUTDOOR UNIT QUIET Operation 139 139 ECONO Operation 140 140 TIMER Operation 141 141 WEEKLY TIMER Operation 143 143 Note for Multi System 148 148 Drawin...

Page 134: ...RA Indoor Unit SiBE12 816_D 123 Operation Manual 2 2 2 Names of Parts FTXS20 25 35 42 50G2V1B FTXS20 25 35 42 50J2V1B Names of parts Indoor Unit 16 14 13 15 12 1 3 4 5 7 9 11 10 8 6 2 ...

Page 135: ...hese filters are attached to the inside of the air filters It senses the air temperature around the unit Temperature setting Airflow rate COOLING ONLY HEAT PUMP This switch is useful when the remote controller is missing It receives signals from the remote controller When the unit receives a signal you will hear a short beep Operation start beep beep Settings changed beep Operation stop beeeeep Pu...

Page 136: ...ting It cannot be used for the WEEKLY TIMER operation 1 Signal transmitter It sends signals to the indoor unit 2 Display 3 FAN setting button It selects the airflow rate setting 4 POWERFUL button POWERFUL operation 5 ON 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 8 QUIET ...

Page 137: ... from upper outlet only Opening the Front Panel This setting automatically decides a blow pattern depending on mode and conditions Before opening the front panel be sure to stop the operation and turn the breaker OFF Do not touch the metal parts on the inside of the indoor unit as it may result in injury This setting is recommended The unit is shipped from the factory with this setting ...

Page 138: ...OOL AUTO Temperature setting Airflow rate AUTO AUTO 12 Signal receiver It receives signals from the remote controller When the unit receives a signal you will hear a short beep Operation start beep beep Settings changed beep Operation stop beeeeep This switch is useful when the remote controller is missing It senses the air temperature around the unit The operation mode refers to the following tab...

Page 139: ...utton 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 TIMER oper...

Page 140: ...s TEMPERATURE adjustment button DRY or FAN mode AUTO or COOL or HEAT mode The temperature setting is not variable Set to the temperature you like 1 5 2 3 4 The air conditioner operates with the operation mode of your choice From the next time on the air conditioner will operate with the same operation mode 1 Press MODE selector button and select a operation mode Each pressing of the button advance...

Page 141: ...y 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 temp...

Page 142: ... button is displayed on the LCD The louvers will stop moving disappears from the LCD 1 2 3 4 You can adjust the airflow direction to increase your comfort To adjust the horizontal blades flaps 2 When the flaps have reached the desired position press SWING button once more To adjust the vertical blades louvers 4 When the louvers have reached the desired position press the SWING button once more is ...

Page 143: ... move in turn Check COMFORT AIRFLOW operation in the section of COMFORT AIRFLOW Operation and INTELLIGENT EYE Operation When SWING button is selected the flaps swinging range depends on the operation mode See the figure 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 preve...

Page 144: ...oving disappears from the LCD To adjust the vertical blades louvers Hold the knob and move the louver You will find a knob on the left side and the rightside 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 COOL DRY When adjusting the flap by ha...

Page 145: ...per air outlet room temperature is equalized 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 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 people air is blown upper air outlet Regardless o...

Page 146: ...itioner will go into energy saving mode 1 Press COMFORT SENSOR button and select an operation mode Choose the desired operation mode out of the following sequence Each time the COMFORT SENSOR button is pressed a different setting option is displayed on the LCD 2 Press COMFORT SENSOR button COMFORT AIRFLOW and INTELLIGENT EYE The flaps will adjust the airflow direction upward while cooling and adju...

Page 147: ... COMFORT AIRFLOW Operation The wind direction may differ from the illustrated direction depending on the actions and movements of the people in the areas 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 airf...

Page 148: ...there are no movements of the people in the areas The airflow direction from the louvers will be leftward if there are people in both areas 1 and 2 or if there is a person right in front of the sensors because the sensors on the both sides will detect the person Due to the position of the sensor people might be exposed to the airflow of the indoor unit if they are close to the front side of the in...

Page 149: ...ERFUL 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 POWERFUL operation will not increase the capacity of the air conditioner if the air condit...

Page 150: ...art OUTDOOR UNIT QUIET operation To cancel OUTDOOR UNIT QUIET operation Note on OUTDOOR UNIT QUIET operation This function is available in COOL HEAT and AUTO modes This is not available in FAN and DRY mode POWERFUL operation and OUTDOOR UNIT QUIET operation cannot be used at the same time Priority is given to the function of whichever button is pressed last OUTDOOR UNIT QUIET operation will drop n...

Page 151: ... ECONO Mode From start up until set temperature is reached This diagram is a representation for illustrative purposes only The maximum running current and power consumption of the air conditioner in ECONO mode vary with the connecting outdoor unit 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...

Page 152: ...T button until the time setting reaches the point you like Every pressing of either button increases or decreases the time setting by 10 minutes Holding down either button changes the setting rapidly Press OFF TIMER button again When the OFF TIMER is set the air conditioner automatically adjusts the temperature setting 0 5 C up in COOL 2 0 C down in HEAT to prevent excessive cooling heating for yo...

Page 153: ...button again To cancel ON TIMER operation Check that the clock is correct If not set the clock to the present time Every pressing of either button increases or decreases the time setting by 10 minutes Holding down either button changes the setting rapidly The TIMER lamp lights up The TIMER lamp goes off A sample setting for combining the two timers is shown below After a breaker has turned OFF Aft...

Page 154: ... can be saved for each day of the week It is convenient if the WEEKLY TIMER is set according to the family s life style Example The same timer settings are made for the week from Monday through Friday while different timer settings are made for the weekend Use the copy mode to make settings for Tuesday to Friday because these settings are the same as those for Monday Tuesday to Friday Up to 4 rese...

Page 155: ...e sure the day of the week and time are set If not set the day of the week and time Pressing the SELECT button changes the reservation number and the day of the week The day of the week and reservation number will be set and blink Pressing the SELECT button changes or setting in sequence In case the reservation has already been set selecting blank deletes the reservation Go to STEP 9 if blank is s...

Page 156: ... WEEKLY TIMER and ON OFF TIMER operation cannot be used at the same time The ON OFF TIMER operation has priority if it is set while WEEKLY TIMER is still active The WEEKLY TIMER will go into standby state and will disappear from the LCD When ON OFF TIMER is up the WEEKLY TIMER will automatically become active Only the time and set temperature set with the weekly timer are sent with the button Set ...

Page 157: ...he destination day of the week The whole reservation of the selected day of the week will be copied The reservation will be copied to the selected day of the week The whole reservation of the selected day of the week will be copied To continue copying the settings to other days of the week repeat STEP 4 and STEP 5 is displayed on the LCD and WEEKLY TIMER operation is activated The entire reservati...

Page 158: ...isplayed is displayed on the LCD and WEEKLY TIMER operation is activated The TIMER lamp lights up The will disappear from the LCD The TIMER lamp goes off To reactivate the WEEKLY TIMER operation press the WEEKLY button again If a reservation deactivated with WEEKLY button is activated once again the last reservation mode will be used Refer to Setting mode When selecting desired mode at STEP 4 in s...

Page 159: ... of the room with the first unit to be turned on CAUTION Normally the operation mode in the room where the unit is first run is given priority but the following situations are exceptions so please keep this in mind If the operation mode of the first room is FAN Mode then using Heating Mode in any room after this will give priority to heating In this situation the air conditioner running in FAN Mod...

Page 160: ...ing Suspended Dual Type Duct Connected Type FTXG25 35EV1BW S CTXG50EV1BW S FLK X S25 50BAVMB FDK X S25 35EAVMB FDK X S50CVMB Read Before Operation Remote Controller 150 151 152 Operation AUTO DRY COOL HEAT FAN Operation 1 153 153 153 Adjusting the Airflow Direction 155 157 POWERFUL Operation 1 159 159 159 OUTDOOR UNIT QUIET Operation 1 160 160 160 HOME LEAVE Operation 2 161 161 INTELLIGENT EYE Ope...

Page 161: ...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 Flap Horizontal blade 11 SWING button Louvers Vertical blades 12 COMFORT AIRFLOW mode button 13 ON TIMER button 14 OFF T...

Page 162: ...perature 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 CAN...

Page 163: ...changes the temperature setting 6 ON OFF button Press this button once to start operation Press once again to stop it 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 QUIET button OUTDOOR UNIT QUIET operation 9 FAN setting button It selects the air flow rate setting 10 ON TIMER button 11 OFF TIMER button 12 TIMER Setting button It changes the time setting 13 TIMER CANC...

Page 164: ...lose To change the temperature setting 4 Press TEMPERATURE adjustment button DRY or FAN mode AUTO or COOL or HEAT mode The temperature setting is not variable Set to the temperature you like 2 3 4 5 1 Press to raise the temperature and press to lower the temperature The air conditioner operates with the operation mode of your choice From the next time on the air conditioner will operate with the s...

Page 165: ...fore the room gets warmer In heating operation frost may occur on the outdoor unit and lower the heating capacity In that case the system switches into defrosting operation to take away the frost During defrosting operation hot air does not flow out of indoor unit Note on COOL operation This air conditioner cools the room by blowing the hot air in the room outside so if the outside temperature is ...

Page 166: ...d the desired position press SWING button once more The flap will stop moving disappears from the LCD To adjust the vertical blades louvers 3 Press SWING button is displayed on the LCD 4 When the louvers have reached the desired position press the SWING button once more The louvers will stop moving To 3 D Airflow 1 3 Press the SWING button and the SWING button the and display will light up and the...

Page 167: ...ode 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...

Page 168: ...can 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 169: ...selected 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 m...

Page 170: ...e is displayed on the LCD Notes on POWERFUL operation POWERFUL Operation cannot be used together with QUIET or COMFORT Operation Priority is given to the function of whichever button is pressed last This does not include QUIET operation 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 I...

Page 171: ...tion To cancel OUTDOOR UNIT QUIET operation 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 This function is available in COOL HEAT and AUTO modes This is not available in FAN and DRY mode POWERFUL operation and OUTDOOR UNIT QUIET operation cannot be used at the same time Priority is...

Page 172: ...re 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...

Page 173: ...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 174: ...n 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 bac...

Page 175: ...cation 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 out...

Page 176: ...e point you like Every pressing of either button increases or decreases the time setting by 10 minutes Holding down either button changes the setting rapidly Check that the clock is correct If not set the clock to the present time 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 batter...

Page 177: ...ck is correct If not set the clock to the present time 2 Press TIMER Setting button until the time setting reaches the point you like Every pressing of either button increases or decreases the time setting by 10 minutes Holding down either button changes the setting rapidly Example Present time 11 00 p m The unit operating OFF TIMER at 0 00 a m ON TIMER at 7 00 a m Combined To cancel ON TIMER oper...

Page 178: ...e AUTO mode is available when selecting the same operation mode as that of the room with the first unit to be turned on Normally the operation mode in the room where the unit is first run is given priority but the following situations are exceptions so please keep this in mind If the operation mode of the first room is FAN Mode then using Heating Mode in any room after this will give priority to h...

Page 179: ...iBE12 816_D SA Indoor Unit FFQ Series Operation Manual 168 3 SA Indoor Unit FFQ Series 3 1 BRC1D528 1 1 2 9 3 25 22 11 10 37 35 27 26 12 14 17 34 24 5 20 21 18 16 13 15 19 32 31 30 29 28 4 36 33 8 23 7 6 ...

Page 180: ...SA Indoor Unit FFQ Series SiBE12 816_D 169 Operation Manual 2 Start 5s 5s 5s 5s 5s End ...

Page 181: ...T IN A SAFE PLACE FOR FUTURE USE Before initial operation contact your dealer to obtain all details concerning your air conditioning installation Never let the remote controller get wet this may cause an electric shock or fire Never press the buttons of the remote controller with a hard pointed object The remote controller may be damaged Never inspect or service the remote controller yourself ask ...

Page 182: ...g operation or blinks if a malfunction occurs These icons indicate the current operation mode FAN DRY AUTOMATIC COOLING HEATING These icons indicate the current ventilation mode HRV only AUTOMATIC HEAT EXCHANGE BYPASS The ventilation icon appears when the ventilation is adjusted with the ventilation amount button HRV only Simultaneously the ventilation amount is indicated by the fan speed icon see...

Page 183: ... PROGRAMMING BUTTON This button is a multi purpose button The maximum set temperature indicates the maximum set temperature when in limit operation The minimum set temperature indicates the minimum set temperature when in limit operation These icons indicate the actions for each day of the schedule timer This icon indicates that the OFF action is selected when programming the schedule timer This i...

Page 184: ... operation This button toggles between setpoint limit operation or programming mode only This button toggles between L Low H High HH very High Automatic AIR FILTER CLEANING TIME ICON RESET BUTTON This button is used to reset the air filter cleaning time icon After initial installation the user can set the clock and day of the week The controller is equipped with a schedule timer that enables the u...

Page 185: ...ctivated as required by the setpoint or limit temperature At the start of a heating operation the indoor fan is stopped until a certain indoor heat exchanger temperature is reached and is displayed In heating operation freezing of the outdoor heat exchanger may occur If so the heating capacity of the system lowers and the system goes into defrost operation The indoor unit fan stops and is displaye...

Page 186: ...n Air flow direction adjust use the button Air flow direction adjust use the button Air flow direction adjust use the button Ventilation mode use the button Ventilation mode use the button Ventilation mode use the button Ventilation amount use the button Ventilation amount use the button Ventilation amount use the button 5 HEATING OPERATION User adjustable parameters 6 LIMIT OPERATION User adjusta...

Page 187: ...timer The actions programmed in the schedule timer will be executed automatically The schedule timer always executes the last command this means the user can temporarily overrule the last executed programmed action Refer to Manual operation on page 5 The next programmed action in the schedule timer will return control to the schedule timer Use the button to enable or disable the schedule timer The...

Page 188: ...5 It is of utmost importance to understand that the number assigned to the programmed action DOES NOT DETERMINE WHEN the programmed action will be executed Only the TIME being a part of the data entered when programming the action will determine when the programmed action will be executed If enabled the schedule timer will execute the programmed actions cool or heat depending on the current operat...

Page 189: ...ppear Assuming that 5 actions were programmed for Tuesday a total of 5 presses will be required to display all programmed actions Continue pressing the button until the day of the week indicator displays the current day not blinking you have now quit browsing The number of times that the button will have to be pressed to quit browsing depends on the number of programmed actions in the schedule tim...

Page 190: ...act temperature control switch on the installation at a scheduled time in limit operation Finally you must enter the time of the day when the action must be enabled If you program 2 or more actions on the same day and at the same time of the day only the action with the highest action number 2 5 will be executed keep in mind that you can always alter add or remove the programmed actions later fami...

Page 191: ... this particular case no actions have been programmed before all schedule timer actions are idle Browse to Monday by pressing the button The icon appears will blink and one of the icons might be displayed but all other fields remain blank indicating that no actions are programmed for Monday Enter the program mode by holding down the button for 5 seconds the icon will now blink too Press the button...

Page 192: ...buttons simultaneously for 5 seconds CONFIRM ONLY The schedule timer action programmed for the current day are only valid for the selected day use the confirm last action and go to next day function by pressing the button for 5 seconds Program mode is quit and depending on the choice made the programmed actions are saved for Monday and possibly Tuesday PROGRAMMING THE OTHER DAYS OF THE WEEK Progra...

Page 193: ...wsing Press the and buttons simultaneously for 5 seconds the icon will invert and disappear to confirm deletion Remove dirt with a soft damp cloth NOTE Only use clear tepid water to moisten the cloth Operation manual The guidelines below might help to solve your problem If you cannot remedy the problem consult your installer No readings on the remote controller display blank Check if the mains pow...

Page 194: ...Indoor Unit FFQ Series SiBE12 816_D 183 Operation Manual 3 2 BRC7E530W 531W 1 1 1 1 2 8 10 13 11 12 15 14 16 17 9 1 3 4 6 2 5 7 1 24 25 1 3 1 2 21 20 22 23 19 18 COOL HEAT CHANGEOVER REMOTE CONTROL SWITCH ...

Page 195: ...talled DISPLAY SET TEMPERATURE DISPLAY PROGRAMMED TIME This display shows PROGRAMMED TIME of the system start or stop DISPLAY AIR FLOW FLAP DISPLAY FAN SPEED DISPLAY INSPECTION TEST OPERATION When the INSPECTION TEST OPERATION BUTTON is pressed the display shows the system mode is in Press the button and the system will start Press the button again and the system will stop Press this button to sel...

Page 196: ...s the remote controller with the front cover opened If the air filter cleaning time indicator lamp lights up clean the air filter as explained in the operation manual provided with the indoor unit After cleaning and reinstalling the air filter press the filter sign reset button on the remote controller The air filter cleaning time indicator lamp on the receiver will go out The Defrost Lamp will fl...

Page 197: ...r holder Remove the back cover of the remote controller to the direction pointed by the arrow mark Put the batteries Use two dry cell batteries AAA LR03 alkaline Put dry batteries correctly to fit their and Under normal use batteries last about a year However change them whenever the indoor unit doesn t respond or responds slowly to commands or if the display becomes dark Replace all batteries at ...

Page 198: ...ystem For cooling only type COOLING and FAN and DRY operation are able to select FOR SYSTEMS WITHOUT COOL HEAT CHANGEOVER REMOTE CONTROL SWITCH OPERATION MODE SELECTOR Press OPERATION MODE SELECTOR button several times and select the OPERATION MODE of your choice as follows AUTOMATIC OPERATION In this operation mode COOL HEAT changeover is automatically conducted FAN OPERATION DRY OPERATION The fu...

Page 199: ...OST OPERATION the system returns to HEATING OPERATION Heating capacity Outdoor air temperature Heating capacity drops as outdoor air temperature lowers If feeling cold use another heater at the same time as this air conditioner Hot air is circulated to warm the room It will take some time from when the air conditioner is first started until the entire room becomes warm The internal fan automatical...

Page 200: ...irection of your choice DISPLAY vanishes the air flow direction is fixed Fixed air flow direction setting For the following conditions micro computer controls the air flow direction so it may be different from the display Operation mode Operation conditions When room temperature is higher than the set temperature At defrost operation The flaps blow horizontally to avoid blowing cold air directly o...

Page 201: ...isplay or changes from flashing light to a constant light Press the TIMER OFF button to cancel programming The display vanishes When the timer is programmed to stop the system after 3 hours and start the system after 4 hours the system will stop after 3 hours and then 1 hour later the system will start When the timer is programmed to stop the system after 3 hours and start the system after 4 hours...

Page 202: ...gs than that consented above a peep is emitted as a warning Only with Heat recovery system you can set the indoor unit to AUTOMATIC Attempting to do so a peep will be emitted as a warning How to designate the master remote controller Continuously press the OPERATION MODE SELECTOR button for 4 seconds The displays showing of all slave indoor unit connected to the same outdoor unit or BS unit flash ...

Page 203: ... control and two remote controller control systems NOT MALFUNCTION OF THE AIR CONDITIONER The following symptoms do not indicate air conditioner malfunction The system does not restart immediately after the ON OFF button is pressed If the OPERATION lamp lights the system is in normal condition It does not restart immediately because a safety device operates to prevent overload of the system After ...

Page 204: ...indoor unit beeps and perform the following operation according to the number of beeps Perform all steps from to Perform and steps Press OPERATION MODE SELECTOR BUTTON on the left hand of the malfunction code blinks Press PROGRAMMING TIMER BUTTON and change the malfunction code Press OPERATION MODE SELECTOR BUTTON on the right hand of the malfunction code blinks Press PROGRAMMING TIMER BUTTON and ...

Page 205: ...r Signal transmitted from a remote controller of a different number cannot be accepted If the number is not mentioned it is considered as 1 The system operates but it does not sufficiently cool or heat If the FAN SPEED is set to LOW SPEED Contact the place of purchase in the following case When you detect a burning odor shut OFF power immediately and contact the place of purchase Using the equipme...

Page 206: ...nel Open Close Fault FTXG CTXG 222 6 Troubleshooting for SA Indoor Unit FFQ Series 223 6 1 Indoor Unit PCB Abnormality 223 6 2 Drain Water Level System Abnormality 224 6 3 Fan Motor or Related Abnormality 226 6 4 Drain System Abnormality 227 6 5 Thermistor or Related Abnormality 228 6 6 Remote Controller Thermistor Abnormality 230 6 7 Signal Transmission Error between Indoor Unit and Remote Contro...

Page 207: ...oor Unit and Outdoor Unit Anti icing control in Other Room 260 8 Check 261 8 1 Thermistor Resistance Check 261 8 2 Fan Motor Connector Output Check 262 8 3 Hall IC Check 262 8 4 Power Supply Waveforms Check 262 8 5 Electronic Expansion Valve Check 263 8 6 Four Way Valve Performance Check 264 8 7 Inverter Unit Refrigerant System Check 265 8 8 Inverter Checker Check 266 8 9 Rotating Pulse Input on t...

Page 208: ...l transmission error occurs between the indoor and outdoor units In either case conduct the diagnostic procedure described in the following pages Wall Mounted Type FTXG E CTXG E Series Wall Mounted Type FTXG J CTXG J Series Wall Mounted Type FTXS G FTXS J Series Floor Standing Type Floor Ceiling Suspended Dual Type Duct Connected Type Operation lamp green R12749 Operation lamp multi colored R12750...

Page 209: ...mode and confirm that the operation lamp is not blinking Moreover when the operation mode is automatic set all the indoor unit operation mode as cooling or heating 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 different operation mode is set later The firs...

Page 210: ...re is 20 C or higher and cooling operation cannot be used when the outdoor temperature is below 10 C Diagnose with remote controller indication 213 214 Some indoor units do not operate Check the type of the indoor units Check if the indoor unit type is compatible with the outdoor unit Diagnose with remote controller indication 213 214 Units operate but do not cool or do not heat Check for wiring a...

Page 211: ...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 3 Not all the error codes are displayed When you cannot find the error code try the check method 2 Refer to page 201 No Code No Code No Code 1 00...

Page 212: ...ure of the ten s place blinks 4 Press the Temp or button and change the figure until you hear the sound of beep or pi pi 5 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...

Page 213: ... 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 9 Determine the error code The figures indicated when you hear the beep sound are error code Error codes and description Refer to page 213 214 10 Press the Mode button for 5 seconds to exit from the service check mode When the remote controll...

Page 214: ...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 3 Not all the error codes are displayed When you cannot find the error code try the check method 2 Refer to page 204 No Code No Code No Code 1 00 13 C7 25 UA 2 U4 14 A3 26 UH 3 L5 1...

Page 215: ...he 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 213 214 4 Press the MODE button The figur...

Page 216: ...oth 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 213 214 8 Press the MODE button to exit from the diagnosis mode The display means the trial operation mode Refer to page 300 for trial operation 9 Press the ON OFF button twice to return to the nor...

Page 217: ...er cancel button down for 5 seconds When the remote controller is left untouched for 60 seconds it also returns to the normal mode 3 Not all the error codes are displayed When you cannot find the error code try the check method 2 Refer to page 207 Timer cancel button R14221 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 ...

Page 218: ...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 213 214 4 Press the MODE button...

Page 219: ...oth 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 213 214 8 Press the MODE button to exit from the diagnosis mode The display means the trial operation mode Refer to page 300 for trial operation 9 Press the ON OFF button twice to return to the nor...

Page 220: ... Normal the UNIT No changes to 0 and the operation mode automatically switches from the inspection mode to the normal mode displaying the set temperature Press the Inspection Test button once R11277 Press the Inspection Test button once After 10 seconds Thermostat is forcibly turned on Press the Inspection Test button for more than 4 seconds Field setting mode Service mode Normal mode Trial operat...

Page 221: ...ay 2 Press the UP or DOWN button and change the UNIT No until the receiver of the remote controller starts to beep Inspection Test button R14392 00 0 UP button DOWN button R14424 00 1 If you hear Then 3 short beeps Follow all steps below 1 short beep Follow steps 3 and 4 Continue the operation in step 4 until you hear a continuous beep This continuous beep indicates that the error code is confirme...

Page 222: ... or DOWN button to change the error code upper digit until the receiver of the remote controller starts to beep Step Action MODE button R14394 00 1 UP button DOWN button R14395 UP DOWN 4 5 6 7 8 9 U P L J F H E C A 0 A0 1 If you hear Then 2 short beeps The upper digit matches 1 short beep No digits match 1 continuous beep Both upper and lower digits match ...

Page 223: ... error code lower digit until the receiver of the remote controller generates a continuous beep 7 Press the MODE button to return to the normal mode If you do not press any button for 1 minutes the remote controller automatically returns to the normal mode Step Action MODE button R14396 A0 1 UP button DOWN button R14397 UP DOWN F E J C H A 9 8 7 6 5 4 3 2 1 0 A3 1 MODE button R14398 27 ...

Page 224: ... motor or related abnormality AC motor duct floor ceiling 218 DC motor wall floor standing 219 C4 Indoor heat exchanger thermistor or related abnormality 221 C7 Front panel open close fault 222 C9 Room temperature thermistor or related abnormality 221 Error Codes Description Reference Page 00 Normal condition A1 Indoor unit PCB abnormality 223 A3 Drain water level system abnormality 224 A6 Fan mot...

Page 225: ...r lock 238 E7 DC fan lock 239 E8 Input overcurrent detection 240 F3 Discharge pipe temperature control 241 F6 High pressure control in cooling 242 H0 Compressor system sensor abnormality 243 H6 Position sensor abnormality 244 H8 DC voltage current sensor abnormality 246 H9 Outdoor temperature thermistor or related abnormality 247 J3 Discharge pipe thermistor or related abnormality 247 J6 Outdoor h...

Page 226: ...nection of connector Troubleshooting Note Check the following connector Check the combination of the indoor and outdoor unit OK Check the connection of connectors See Note Correct the connection OK Error repeats YES NO NO YES NO YES R11930 Caution To secure the connection once disconnect the connector and then reconnect it Match the compatible models Replace the indoor unit PCB Replace the indoor ...

Page 227: ...ak cut control During heating operation the temperature detected by the indoor heat exchanger thermistor is used for the heating peak cut control operation halt outdoor fan stop etc Malfunction Decision Conditions Freeze up protection control During cooling operation the indoor heat exchanger temperature is below 0 C Heating peak cut control During heating operation the temperature detected by the...

Page 228: ...ovide sufficient air passage Clean the air filter Clean the indoor heat exchanger Replace the indoor unit PCB Replace the thermistor Does it conform to the thermistor characteristic chart Check the air filter Check the dust accumulation on the indoor heat exchanger Is there any short circuit Is it very dirty Is it very dirty Check the air passage Be sure to turn off the power switch before connect...

Page 229: ...Defective indoor unit PCB Troubleshooting Check No 04 Refer to P 262 NO NO NO Check No 04 Check Hall IC NO NO NO YES YES YES YES YES YES R14403 Caution Replace the fan motor or the indoor unit PCB Replace the fan motor Replace the indoor unit PCB Replace the capacitor Replace the indoor unit PCB Replace the fan motor Replace the fan motor Replace the indoor unit PCB Does the fan rotate Is there an...

Page 230: ...ation is used to determine abnormal fan motor operation Malfunction Decision Conditions 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 Disconnection of connector Foreign matters stuck in the fan Layer short inside the fan motor winding Breaking of wire inside the fan motor Breaking...

Page 231: ...ate smoothly Does the fan rotate Is the motor control voltage 15 VDC generated Turn off the power supply and rotate the fan by hand Turn the power on and start operation Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Check No 02 Check the output of the fan motor connector R14404 NO YES YES NO YES NO Replace the fan motor Replace the indoo...

Page 232: ...s than 0 04 V during compressor operation Supposed Causes Disconnection of connector Defective thermistor Defective indoor unit PCB Troubleshooting Check No 01 Refer to P 261 C4 Indoor heat exchanger thermistor C9 Room temperature thermistor YES R14406 NO Check No 01 Check the thermistor resistance value YES NO Caution Correct the connection Replace the thermistor Replace the indoor unit PCB Repla...

Page 233: ...air 1 Turn off the power 2 Remove the front panel 3 Turn on the power Wait until the initialization finishes 4 Operate the unit by the indoor unit ON OFF button YES YES YES YES NO NO NO NO Replace the harness and reduction motor Replace the assembly of the front panel mechanism Check the movement of the right and left separately by hand Replace the assembly of the front panel mechanism It is suppo...

Page 234: ...emory chip that holds its content without power It can be erased either within the computer or externally and usually requires more voltage for erasure than the common 5 volts used in logic circuits It functions like non volatile RAM but writing to EEPROM is slower than writing to RAM Supposed Causes Defective indoor unit PCB Troubleshooting Caution Be sure to turn off the power switch before conn...

Page 235: ...of Malfunction Detection The float switch detects error Malfunction Decision Conditions When the water level reaches its upper limit and when the float switch turns OFF Supposed Causes Defective drain pump Improper drain piping work Clogged drain piping Defective float switch Defective indoor unit PCB Defective short circuit connector X15A on indoor unit PCB ...

Page 236: ...ndoor unit PCB Replace the drain pump There is a drain system abnormality Connect the float switch Replace the float switch Replace the indoor unit PCB R11295 NO YES NO NO YES YES Is the drain pump connected to the indoor unit PCB NO Is the drain water level abnormally high YES YES Is the float switch connected to X15A NO Does the drain pump work after restarting operation YES Remove the float swi...

Page 237: ... the output voltage to the fan is at its maximum Supposed Causes Defective indoor fan motor Broken or disconnected wire Defective contact Defective indoor unit PCB Troubleshooting Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Connect the wiring and turn on again YES YES NO NO Replace the indoor unit PCB Replace the fan motor R112...

Page 238: ...in pipe installation Defective float switch Defective indoor unit PCB Troubleshooting YES YES NO NO Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged The float switch may be defective Check to see if the drain up height and the horizontal pipe length exceed the specifications Clogged water drain system clogged drain pump or faulty fl...

Page 239: ...nnector Defective thermistor Defective indoor unit PCB Broken or disconnected wire Checking thermistors If the cause of the problem is related to the thermistors the thermistors should be checked prior to changing the indoor unit PCB To check the thermistors proceed as follows Refer to Thermistor resistance check on page 261 for detail Error Description C4 Defective indoor heat exchanger thermisto...

Page 240: ...connector connection Check the contact between the thermistor and the indoor unit PCB NO NO NO YES YES YES Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Correct the connection Replace the thermistor Correct the contact R11299 Replace the indoor unit PCB C4 Indoor heat exchanger thermistor R2T C9 Room temperature thermistor R1T ...

Page 241: ...unction Decision Conditions When the remote controller thermistor disconnected or shorted while the unit is running Even if the remote controller thermistor is malfunctioning the system can operate with the system thermistor Supposed Causes Defective thermistor Broken wire Troubleshooting NO YES Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may...

Page 242: ...emote controllers when using 2 remote controllers Troubleshooting Normal Normal There is possibility of malfunction caused by noise Check the surrounding area and turn on again Set one remote controller to SUB turn the power supply off once and then back on Replace the indoor unit PCB There is possibility of malfunction caused by noise Check the surrounding area and turn on again NO YES YES Return...

Page 243: ... and SUB is not normal over a certain amount of time in case of controlling with 2 remote controllers Supposed Causes Transmission error between MAIN remote controller and SUB remote controller Connection among SUB remote controllers Defective remote controller PCB Troubleshooting Turn the power off and then back on If a malfunction occurs replace the remote controller PCB Set one remote controlle...

Page 244: ...ality Remote Controller Display UA Method of Malfunction Detection Malfunction Decision Conditions Incorrect field setting Supposed Causes Defective indoor unit PCB Defective outdoor unit PCB Defective power supply PCB Indoor outdoor indoor indoor unit transmission wiring Defective remote controller wiring ...

Page 245: ...supply off once and back on to restart Is the remote controller connected to one or more indoor units Is the remote controller wiring jumped between indoor units Is the field setting correct Do the microcomputer normal monitors HAP on all indoor unit PCB blink Are the wirings between indoor unit and outdoor unit correctly connected Is 220 240 VAC between No 1 and 3 of X2M terminal indoor unit Does...

Page 246: ...stor that are located in a shut down room Malfunction Decision Conditions In cooling operation both the condition A and B are met for 5 minutes A Stop room thermistor temperature Indoor heat exchanger temperature 10 C B Indoor heat exchanger temperature 1 C If the error repeats 4 times the system is shut down Reset condition Continuous run for about 60 minutes without any other error Supposed Caus...

Page 247: ...oisture from the piping after drawing a vacuum Activate the wiring error check mode Replace the electronic expansion valve or coil Replace the outdoor heat exchanger thermistor Replace the room temperature thermistor Replace the room temperature thermistor or indoor heat exchanger thermistor Do the vacuum drying Replace the indoor unit PCB and then start the wiring error check function Does it con...

Page 248: ...shooting Check No 01 Refer to P 261 Check No 12 Refer to P 263 Check No 13 Refer to P 264 Check No 14 Refer to P 265 R14408 Caution YES NG Discharge pipe thermistor NO OK OK NG NG OK NG OK Refrigerant shortage Four way valve Water mixed Stop valve Insert the thermistor in position Replace the discharge pipe thermistor Replace the electronic expansion valve or the coil Refer to the refrigerant line...

Page 249: ...Check No 15 Refer to P 266 Turn off the power Disconnect the harnesses U V and W R14409 Caution NO YES YES NO NO YES Check No 15 Check with the inverter checker Turn off the power and reconnect the harnesses Turn on the power again and restart the system Precaution before turning on the power again Make sure the power has been off for at least 30 seconds Correct the power supply or replace the PM1...

Page 250: ...error Supposed Causes Defective fan motor Disconnection of the fan motor Foreign matters stuck in the fan Troubleshooting Check No 16 Refer to P 268 R14410 Caution YES YES NO YES NO NO YES NO Turn on the power Rotate the fan Check No 16 Check the rotation pulse input on the outdoor unit PCB Turn off the power and reconnect the connector Remove them Replace the outdoor fan motor Replace the outdoor...

Page 251: ...tion Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged An input overcurrent may result from wrong internal wiring If the wires have been disconnected and reconnected for part replacement for example and the system is interrupted by an input overcurrent take the following procedure R14411 NO YES YES NO Start operation and measure the input cu...

Page 252: ...changer thermistor or outdoor temperature thermistor Defective outdoor unit PCB Water mixed in refrigerant Defective electronic expansion valve Defective stop valve Troubleshooting Check No 01 Refer to P 261 Check No 12 Refer to P 263 Check No 14 Refer to P 265 A C B C 40 class 110 97 50 class 110 95 R14412 Caution NG OK OK OK NG NG Discharge pipe thermistor Outdoor heat exchanger thermistor Outdo...

Page 253: ... stop valve Dirty outdoor heat exchanger Troubleshooting Check No 01 Refer to P 261 Check No 12 Refer to P 263 Check No 17 Refer to P 269 Check No 18 Refer to P 269 Check No 19 Refer to P 270 R14413 Caution Replace the fan motor Reconnect the connector or fan motor lead wires Replace the stop valve Replace the outdoor heat exchanger thermistor Replace the outdoor unit PCB Replace the electronic ex...

Page 254: ...tions When 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 Replace the wire harness Replace the outdoor unit PCB R7143 YES NO Check the wire harness Is the wire harness damaged Caution Be sure to turn off ...

Page 255: ...compressor running condition through the position detection circuit Malfunction Decision Conditions If the error repeats 16 times the system is shut down Reset condition Continuous run for about 11 minutes without any other error Supposed Causes Disconnection of the compressor relay cable Defective compressor Defective outdoor unit PCB Startup failure caused by the closed stop valve Input voltage ...

Page 256: ...YES YES NO YES YES Check No 20 Check the short circuit of the diode bridge Check No 15 Check with the inverter checker Turn off the power Disconnect the harnesses U V and W Turn on the power Check the electrolytic capacitor voltage Electrical components or compressor harnesses connected as specified Replace the outdoor unit PCB Replace the compressor Correct the power supply or replace the outdoor...

Page 257: ...r running frequency and the input current Malfunction Decision Conditions The compressor running frequency is above 52 Hz If the error repeats 4 times the system is shut down Reset condition Continuous run for about 60 minutes without any other error Supposed Causes Defective outdoor unit PCB Troubleshooting Replace the outdoor unit PCB Caution Be sure to turn off the power switch before connectin...

Page 258: ...n J3 error is judged if the discharge pipe temperature is lower than the heat exchanger temperature The system is shut down if all the units are judged as the J8 or J9 error Supposed Causes Disconnection of the connector for the thermistor Defective thermistor Defective outdoor unit PCB Defective indoor unit PCB Defective heat exchanger thermistor in the case of J3 error outdoor heat exchanger the...

Page 259: ... of the following thermistors Outdoor temperature thermistor Discharge pipe thermistor Outdoor heat exchanger thermistor Liquid pipe thermistor Gas pipe thermistor Indoor heat exchanger thermistor Cooling Outdoor heat exchanger thermistor Heating Indoor heat exchanger thermistor Replace the following thermistor Replace the outdoor unit PCB Replace the indoor unit PCB Error displayed again on remot...

Page 260: ...onnection of connector Defective outdoor unit PCB Troubleshooting Check No 17 Refer to P 269 Check No 19 Refer to P 270 A C B C C C 80 70 75 Caution WARNING To cool the electrical components the outdoor fan starts when the radiation fin temperature rises above C C and stops when it drops below B C R14416 YES NO Slightly dirty NG Too dirty OK NO YES Turn off the power and turn it on again Check the...

Page 261: ...radiation fin temperature with the compressor on is above A C The error is cleared when the temperature drops below B C If the error repeats the system is shut down Reset condition Continuous run for about 60 minutes without any other error Supposed Causes Defective outdoor unit fan Short circuit Defective fin thermistor Disconnection of connector Defective outdoor unit PCB Silicon grease is not a...

Page 262: ...ain Make sure the power has been off for at least 30 seconds Radiation fin dirty Check No 19 Check the outdoor unit fan or related Error displayed again Has PCB been replaced Check if the silicon grease applied properly on the radiation fin If not apply it See Note Check the power transistor and the radiation fin for looseness If they are found to be fit tightly replace the outdoor unit PCB or the...

Page 263: ...al error occurs while the compressor is running A speed error occurs while the compressor is running An output overcurrent signal is fed from the output overcurrent detection circuit to the microcomputer If the error repeats the system is shut down Reset condition Continuous run for about 11 minutes without any other error Supposed Causes Defective power transistor Wrong internal wiring Abnormal s...

Page 264: ...power module Check No 17 Check the installation condition Check No 15 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 and start operation Turn off the power and turn it on again to start the system See if the same error occurs Check the supply voltage Keep on using as it is Check the co...

Page 265: ...gerant shortage detection I The following conditions continue for 7 minutes DC current DC voltage A Compressor output frequency B Output frequency C Refrigerant shortage detection II The following conditions continue for 80 seconds Opening of the electronic expansion valve D Discharge pipe temperature E target discharge pipe temperature F If the error repeats 4 times the system is shut down Reset ...

Page 266: ...Repair the pipe flare or replace the union Check the power transistor harness for looseness Correct it as required Also replace the cracked pipe Check the pipes for improper contact Correct them as required Also replace the cracked pipe Replace the electronic expansion valve Replace the defective one s Completed Refrigerant shortage error again Oil oozing at internal piping Stop valve closed Compr...

Page 267: ... error repeats the system is shut down Reset condition Continuous run for about 60 minutes without any other error Supposed Causes Supply voltage is not as specified Defective DC voltage detection circuit Defective over voltage detection circuit Defective PAM control part Troubleshooting Correct the power supply Replace the outdoor unit PCB Check for such factors for a long term Try to restart a f...

Page 268: ...r absence of zero cross signal Malfunction Decision Conditions The program of the microcomputer is in bad running order Indoor outdoor unit signal transmission can not be performed for more than 15 seconds Zero cross signal cannot be detected for more than 10 seconds Supposed Causes Display disabled due to power supply fault Communication circuit fault in outdoor unit PCB Noise Momentary fall of v...

Page 269: ...ave continuity Does it have continuity 5 V 0 5 V Rated voltage Firmly connected Rectify the power supply Replace the varistor Replace the fuse Replace the outdoor unit PCB Replace the thermal fuse on the terminal board Reconnect it properly Replace the terminal board Replace the thermal fuse on the terminal board Check the varistor V1 on the outdoor unit PCB Check the fuse FU1 on the outdoor unit ...

Page 270: ...onnection wires between indoor unit and outdoor unit Does the LED A turn off Grounded Disturbance Is it OK Carry out grounding work Replace the outdoor unit PCB Reconnect the connection wires Replace the indoor unit PCB The cause seems to be an external factor other than failure of the outdoor unit PCB Investigate the source of noise and take measures Investigate the cause of disturbance and take ...

Page 271: ...ching of indoor and outdoor units Supposed Causes Anti icing control in other room Wrong models interconnected Wrong indoor unit PCB or outdoor unit PCB mounted Troubleshooting Note Refer to Anti icing control for indoor unit on page 235 for detail R7151 Caution NO YES NO YES NO YES Check the model combination Check the combination of all the models being connected Error displayed while operating ...

Page 272: ...erature and resistance is shown in the graph and the table below For the models in which the thermistor is directly mounted on the PCB disconnect the connector for the PCB and measure 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 kΩ 150 100 50 15 0 15 30 45 C R11905 T...

Page 273: ...fan motor is operating If NG in step 1 Æ Defective PCB Æ Replace the PCB If NG in step 2 Æ Defective Hall IC Æ Replace the fan motor If OK in both steps 1 and 2 Æ Replace the PCB 8 4 Power Supply Waveforms Check Check No 11 Measure the power supply waveform between No 1 and No 2 on the terminal board and check the waveform disturbance Check to see if the power supply waveform is a sine wave Fig 1 ...

Page 274: ... 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 po...

Page 275: ...coil from the connector and check the continuity Start heating operation Four way valve coil Cooling Dry No continuity Heating Continuity Replace the outdoor unit PCB Replace the four way valve coil Replace the four way valve Four way valve coil resistance at 1000 2000 Ω S80 voltage at 220 240 VAC with compressor on Fig 1 R11904 Fig 1 Voltage at S80 220 240 VAC ON Compressor Time ...

Page 276: ...Refrigerant System Check Check No 14 Refrigerant system check Check for refrigerant leakage See the section on refrigerant shortage detection R8380 YES NO Place the thermistor Replace the refrigerant Is the discharge pipe thermistor disconnected from the holder ...

Page 277: ...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 from output side of PCB Do not connect them to the compressor at the same time otherwise it may result in incorrect detection Step 3 Activate power transistor test operation from the indoor unit FTXG J CTXG J ...

Page 278: ...remote controller 3 Press the ON OFF button FAN operation starts 4 Press the TEST button twice Power transistor 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 Check No 13 replace the...

Page 279: ...the rotation command voltage between the pins 2 4 is 0 15 VDC 5 Keep operation off and power off Connect the connector S70 6 Check whether 2 pulses 0 15 VDC are output at the pins 1 4 when the fan motor is rotated 1 turn by hand 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...

Page 280: ...rease of the suction air temperature Change the installation location or direction Change the installation location or direction Change the installation location or direction Check the outdoor temperature temperature of air taken in by the outdoor unit The outdoor temperature shall be 46 C or lower Clean the heat exchanger R11718 Not dirty YES YES Dirty NO NO NO YES Is the air filter or indoor out...

Page 281: ...kΩ short circuit occurs on the main circuit The illustration is for 50 class model as representative R7159 YES YES NO NO Outdoor unit fan system functioning Check the outdoor unit fan system Go to Check No 15 Outdoor unit fan running Fan motor lead wire connector disconnected Reconnect the connector terminal of the tester in case of digital terminal 2 3 4 2 3 1 terminal of the tester in case of di...

Page 282: ...ge the connector press the protrusion on the connector Follow the procedure below to measure resistance between the terminals of the DB1 and the terminals of the compressor with a multi tester Evaluate the measurement results for a judgment Negative terminal of tester positive terminal for digital tester DB1 UVW DB1 UVW Positive terminal of tester negative terminal for digital tester UVW DB1 UVW D...

Page 283: ... Removal of Outer Panels 273 1 2 Removal of Electrical Box 275 1 3 Removal of PCB 280 1 4 Removal of Sound Blankets 285 1 5 Removal of Outdoor Fan Fan Motor 287 1 6 Removal of Thermistors 290 1 7 Removal of Four Way Valve Electronic Expansion Valves 292 1 8 Removal of Compressor 295 ...

Page 284: ... Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 External appearance 2 Remove the 2 screws and remove the top panel The front panel has 4 hooks 3 Remove the 8 screws and remove the front panel R7570 Room A Room B Liquid side Gas side R7571 R12527 Top panel Hooks Discharge grille Front panel Hooks ...

Page 285: ...ove the 4 screws and remove the discharge grille When reassembling make sure to fit the 4 hooks 5 Remove the 2 screws and remove the stop valve cover When reassembling make sure to fit the 4 hooks Step Procedure Points R12767 R7699 Stop valve cover R7701 ...

Page 286: ...embling fasten the wires with screws on the terminal board 1 Remove the 2 grounding screws Remove the 2 screws and remove the wiring fixture Then remove all the screws to disconnect the power supply cables and the connecting wires 2 Remove the electrical box 1 Release the outdoor temperature thermistor 2 Lift up the guard net and remove it 4 4 P Room A Room B Power supply R7573 Grounding screws Wi...

Page 287: ...tor lead wire 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 S70 R12529 R7579 S92 S91 R12530 S40 R12531 ...

Page 288: ...lve coil for room B red S80 four way valve coil 8 Disconnect the relay connector for the compressor 9 Disconnect the 2 connectors for the reactor 10 Release the discharge pipe thermistor Meet the edge of the thermistor and the clip Be careful not to lose the clip for the thermistor Step Procedure Points S20 S21 S80 R12532 R12533 R12534 Discharge pipe thermistor R12535 ...

Page 289: ...0 thermistors outdoor temperature outdoor heat exchanger discharge pipe 12 Detach the clamp for the thermistors from the electrical box 13 Remove the screw on the right side of the electrical box 14 Loosen the screw in front of the electrical box Step Procedure Points S90 R7587 Clamp R12771 R12536 R7590 ...

Page 290: ...Outdoor Unit SiBE12 816_D 279 Removal Procedure 15 Lift and remove the electrical box Step Procedure Points R12537 ...

Page 291: ...e screw and remove the electrical box cover Preparation Remove the panels according to the Removal of Outer Panels Remove the electrical box according to the Removal of Electrical Box 2 Detach the insulation sheet The trimmed part goes front 3 Remove the 2 screws and remove the terminal boards The thermal fuse is united with terminal board R12538 Electrical box cover M4 12 R12539 R12772 Insulation...

Page 292: ... 4 Release the earth wire from the hook 5 Remove the 2 screws and detach the clip to remove the radiation shield plate Step Procedure Points R12541 Temperature fuse harness Radiation shield plate Clip R7600 Clip Hole R7596 Compressor harness R12565 ...

Page 293: ...e harnesses 7 Remove the 7 screws in total to remove the PCB 8 Lift up the back side of the electrical box slightly and unfasten the hooks of the front When reassembling make sure that the hooks of the electrical box are placed on the PCB Step Procedure Points R7597 R7598 R7602 R7603 ...

Page 294: ...oor Unit SiBE12 816_D 283 Removal Procedure 9 Release the lead wires from the hooks and remove the terminal boards 10 Lift up the PCB 11 Remove the PCB Step Procedure Points Terminal board R7604 R7605 R7606 ...

Page 295: ...o page 51 for detail S20 electronic expansion valve coil for room A S21 electronic expansion valve coil for room B S40 overload protector S70 fan motor S80 four way valve coil S90 thermistors S91 gas pipe thermistor S92 liquid pipe thermistor 13 Remove the 2 screws and remove the radiation fin Step Procedure Points S70 S40 S92 S91 S20 S21 S90 S80 R12566 R7608 R7609 ...

Page 296: ... panels according to the Removal of Outer Panels Remove the electrical box according to the Removal of Electrical Box 1 Remove the 6 screws and remove the right side panel 2 Remove the partition plate When reassembling fit the lower hooks into the bottom frame 1 Remove the 2 screws 2 The partition plate has 2 hooks on the lower side Lift and pull the partition plate and remove it R12567 Right side...

Page 297: ... pull it out 2 Remove the sound blanket top Since the piping ports are torn easily remove the sound blanket carefully 3 Open the sound blanket inner and pull it out 4 Pull out the sound blanket bottom Step Procedure Points R7613 Sound blanket outer R7614 Sound blanket top R7617 R7615 Sound blanket inner R7616 Sound blanket bottom ...

Page 298: ...f all power supplies before disassembling work Step Procedure Points 1 Remove the outdoor fan Nut size M6 1 Remove the washer fitted nut 2 Remove the outdoor fan When reassembling align mark of the outdoor fan with D cut section of the motor shaft 2 Remove the fan motor 1 Disconnect the connector for the fan motor S70 R7618 10 mm R12236 R7619 R7620 S70 R7621 ...

Page 299: ...oor Unit Removal Procedure 288 2 Release the fan motor lead wire 3 Remove the screw of the fan motor fixing frame 4 Remove the fan motor fixing frame Step Procedure Points R7579 R7623 Fan motor fixing frame R7624 R7625 ...

Page 300: ...s of the fan motor lead wire 6 Release the fan motor lead wire When reassembling put the fan motor lead wire through the back of the fan motor so as not to be entangled with the outdoor fan 7 Remove the 4 screws and remove the fan motor Step Procedure Points R7626 R7627 Lead wire Outdoor fan R12215 R7628 R12773 ...

Page 301: ...ly of thermistors Be careful not to lose the clip for the thermistor 1 Release the discharge pipe thermistor 2 Cut the clamp and pull out the outdoor heat exchanger thermistor 3 The thermistors are united as an assembly 2 Remove the liquid gas pipe thermistors 1 The figure shows the liquid gas pipe thermistors R7630 Discharge pipe thermistor R12279 Clip R7631 Outdoor heat exchanger thermistor R763...

Page 302: ... gas pipe thermistor 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 thermistors Step Procedure Points R7634 R7635 Thermistor Liquid Room A Thermistor Gas Room A Thermistor Liquid Room B Thermistor Gas Room B R7636 ...

Page 303: ...supplies before disassembling work Step Procedure Points 1 Remove the peripheries Preparation Remove the sound blankets Detach the four way valve coil and the clamp and then detach the wire harnesses 1 Remove the screw and remove the four way valve coil 2 Pull out the electronic expansion valve coils 3 Remove the putty 4 Remove the terminal cover R7644 R7703 R7645 R7646 Terminal cover R7637 ...

Page 304: ...efrigerant gas Cautions for restoration 1 Restore the piping by non oxidation brazing 2 It is required to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat Keep below 120 C For the sake of this wrap the four way valve with wet cloth and provide water so that the cloth does not dry In case of difficulty with gas brazing machine 1 Di...

Page 305: ...o not use a metal saw for cutting pipes by all means because the sawdust comes into the circuit When withdrawing the pipes be careful not to pinch them firmly with pliers The pipes may get deformed Provide a protective sheet or a steel plate so that the brazing flame cannot influence peripheries Step Procedure Points R7651 ...

Page 306: ...r 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the terminal cover 2 Disconnect the compressor terminals 3 Unfasten the hooks with a flat screwdriver and remove the overload protector Terminal cover R7637 Red U Yellow V Blue W R7638 R7639 R7640 ...

Page 307: ...elow 120 C For the sake of this wrap the four way valve with wet cloth and provide water so that the cloth does not dry In case of difficulty with gas brazing machine 1 Disconnect the brazed part where is easy to disconnect and restore 2 Cut pipes on the main unit with a tube cutter in order to make it easy to disconnect Before working make sure that the refrigerant gas is empty in the circuit Be ...

Page 308: ...ion 299 3 Trial Operation 300 3 1 RA Indoor Unit F C TXG FTXS FVXS FLK X S FDK X S Series 300 3 2 SA Indoor Unit FFQ Series 302 4 Field Settings 303 4 1 RA Indoor Unit F C TXG FTXS FVXS FLK X S FDK X S Series 303 4 2 SA Indoor Unit FFQ Series 307 4 3 Outdoor Unit 314 5 Application of Silicon Grease to a Power Transistor and a Diode Bridge 315 ...

Page 309: ...e pipes for rooms A and 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 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 29...

Page 310: ...e outdoor unit is not operating Start Press the forced cooling operation ON OFF button SW1 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 operation ON OFF button SW1 on the i...

Page 311: ...e 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 to 28 C in ...

Page 312: ...terminates in approx 30 minutes and switches into normal mode To quit a trial operation press the ON OFF button ARC433 Series 1 Press the ON OFF button to turn on the system 2 Press the center of 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...

Page 313: ...ave the connections been checked for refrigerant leakage z Poor cooling z Poor heating z Stop Is the supply voltage conform to the specifications on the name plate Incorrect operation Are the cable sizes as specified and according to local regulations Damage of cables Are the remote controller signals received by the unit No operation Step Action 1 Turn on the power supply more than 6 hours before...

Page 314: ... 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 the front grille 2 Remove the electrical box 3 Remov...

Page 315: ... Pull out the indoor heat exchanger thermistor 6 Remove the shield plate 8 tabs 7 Cut the address setting jumper JA on the indoor unit PCB 8 Cut the address setting jumper 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 ...

Page 316: ...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 ARC466 series ARC452 series ARC433 series Jumper R12037 ADDRESS EXIST 1 CUT 2 Jumper ADDRESS EXIST 1 CUT 2 R12065 Jumper R6573 ADDRESS EXIST 1 CUT 2 ...

Page 317: ...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 318: ...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 PROGRAMMING button to select the indoor unit No fo...

Page 319: ...l 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 RESERVE button to confirm the setting 6 Press the Inspection Test button to return to the normal mode 10 1 0 Inspection Test button UP button DOWN button MODE button R14426 RESERVE button Mode...

Page 320: ...iple Double twin 1 Simultaneous operation system individual setting Unified setting Individual setting 7 External static pressure setting Airflow adjustment is OFF Completion of airflow adjustment Start of airflow adjustment 12 22 1 Forced ON OFF function Forced OFF ON OFF operation 2 Thermostat differential changeover setting for when using remote sensor 1 C 0 5 C 13 23 0 High air outlet velocity...

Page 321: ...The remote controllers are factory set to MAIN so you only have to change one remote controller from MAIN to SUB Step Action 1 Insert a flat screwdriver into the groove between the upper and lower part of the remote controller as shown in the illustration below Gently pry off the upper part of the controller working from the two possible positions 2 Set the MAIN SUB changeover switch on the PCB to...

Page 322: ... using together with a wired remote controller you have to change the MAIN SUB setting on the signal receiver PCB Signal Receiver PCB Set the address setting switch SS2 on the signal receiver PCB according to the table below When using both a wired and a wireless remote controller for 1 indoor unit the wired controller should be set to MAIN Therefore set the MAIN SUB setting switch SS1 on the sign...

Page 323: ...1 second to exit the field setting mode and return to the normal display Multiple Settings A b When the indoor is controlled by outside controller central remote controller etc it sometimes does not respond to ON OFF command or temperature setting command from the remote controller Check what setting the customer needs and make the multiple setting as shown below Field setting mode Address Multipl...

Page 324: ...ion panel air discharge outlet as well as on the back of the wireless remote controller Note Set the unit No of the receiver and the wireless remote controller to be the same If the settings differ the signal from the remote controller cannot be received Wireless remote controller Unit No label 1 R12961 Decoration panel ...

Page 325: ...trol 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 R14361 Electrical box 5 Cut the jumper Hook Fan motor lead wire 1 Remove the 2 screws Electrical box cover Insulati...

Page 326: ...n 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 solder or paper waste between the po...

Page 327: ...SiBE12 816_D Appendix 316 Part 9 Appendix 1 Piping Diagrams 317 1 1 Indoor Unit 317 1 2 Outdoor Unit 321 2 Wiring Diagrams 323 2 1 Indoor Unit 323 2 2 Outdoor Unit 327 ...

Page 328: ...45301C 7 0CuT CROSS FLOW FAN FAN MOTOR M INDOOR UNIT 7 0CuT 7 0CuT 9 5CuT HEAT EXCHANGER 7 0CuT 7 0CuT THERMISTOR ON HEAT EXCH FIELD PIPING 6 4CuT FIELD PIPING 12 7CuT REFRIGERANT FLOW COOLING HEATING 4D050924 INDOOR UNIT 6 4CuT HEAT EXCHANGER CROSS FLOW FAN M FAN MOTOR 9 5CuT REFRIGERANT FLOW COOLING HEATING 4D065855 THERMISTOR ON HEAT EXCH FIELD PIPING 6 4CuT FIELD PIPING 9 5CuT INDOOR UNIT 6 4C...

Page 329: ...T FLOW HEATING FAN MOTOR FIELD PIPING HEAT EXCHANGER THERMISTOR ON HEAT EXCH FIELD PIPING 12 7CuT 4D058898E FVXS25 35FV1B FVXS50FV1B MUFFLER ASSY 6 4CuT 6 4CuT FIELD PIPING TURBO FAN FIELD PIPING HEAT EXCHANGER REFRIGERANT FLOW 6 4CuT 6 4CuT FAN MOTOR 9 5CuT M 6 4CuT 6 4CuT 7 0CuT COOLING 9 5CuT THERMISTOR ONHEATEXCH HEATING INDOOR UNIT 4D056137B FAN MOTOR 6 4CuT THERMISTOR ONHEATEXCH 7 0CuT TURBO...

Page 330: ...R UNIT 9 5CuT 12 7CuT SIROCCO FAN FAN MOTOR M HEAT EXCHANGER REFRIGERANT FLOW COOLING FIELD PIPING 6 4CuT FIELD PIPING 12 7CuT THERMISTOR ON HEAT EXCH 4D048723A FIELD PIPING 6 4CuT FIELD PIPING 9 5CuT INDOOR UNIT 6 4CuT SIROCCO FAN 9 5CuT FAN MOTOR M HEAT EXCHANGER REFRIGERANT FLOW COOLING HEATING THERMISTOR ON HEAT EXCH 4D048722B INDOOR UNIT 9 5CuT SIROCCO FAN 12 7CuT FAN MOTOR M HEAT EXCHANGER F...

Page 331: ...ROCCO FAN 6 4CuT A CuT FAN MOTOR M REFRIGERANT FLOW HEAT EXCHANGER COOLING HEATING 12 7 9 5 FDXS25EAVMB FDXS35EAVMB FDKS25EAVMB FDKS35EAVMB FDXS50CVMB FDKS50CVMB THERMISTOR ON HEAT EXCH FIELD PIPING 6 4CuT C 4D045449L A A Indoor heat exchanger Field piping φ A C1220T O Field piping φ B C1220T O Indoor unit MODEL FFQ25 35B8V1B FFQ50B8V1B 6 4 6 4 9 5 12 7 To Outdoor unit C 4D039335A A B ...

Page 332: ...PING LIQUID DISCHARGE PIPE THERMISTOR BRANCH PIPE FIELD PIPING GAS BRANCH PIPE GAS PIPE THERMISTOR GAS PIPE THERMISTOR GAS LINE STOP VALVE GAS LINE STOP VALVE FOUR WAY VALVE NORMALLY OFF 3D055809C M 7 9CuT EVA 7 9CuT 6 4CuT 4 8CuT 6 4CuT 6 4CuT FILTER 9 5CuT ACCUMULATOR COOLING 9 5CuT 7 9CuT 9 5CuT 9 5CuT FAN MOTOR PROPELLER FAN 9 5CuT COMPRESSOR OUTDOOR UNIT 6 4CuT HEAT EXCHANGER EVB MUFFLER 4 8C...

Page 333: ...THERMISTOR BRANCH PIPE GAS PIPE THERMISTOR GAS PIPE THERMISTOR GAS LINE STOP VALVE GAS LINE STOP VALVE ROOM A 9 5 CuT ROOM A 6 4 CuT ROOM B 6 4 CuT ROOM B 9 5 CuT BRANCH PIPE 3D055808D 7 9CuT EVA 7 9CuT M HEAT EXCHANGER 9 5CuT EVB 6 4CuT 6 4CuT MUFFLER PROPELLER FAN 9 5CuT FAN MOTOR MUFFLER 9 5CuT 6 4CuT 9 5CuT MOTOR OPERATED VALVE MUFFLER FILTER FILTER 4 8CuT 9 5CuT MOTOR OPERATED VALVE OUTDOOR U...

Page 334: ...ERMINAL HEAT EX 3D050493B NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN X1M 1 A1P F1U H1 S21 2 BLK 1 S25 3 15A 3 2 WHT A3P C102 V1 1 1 BLK H2 OUTDOOR RED 3 MR10 S36 HA BLK GRN BLK 3 3 YLW C101 H3 GRN FIELD WIRING YLW FG A2P S51 S46 t S200 BLK 1 1 7 1 S42 R1T BLK 7 S41 S32 RED S52 BLK M 1 2 3 10 2 8 5 9 7 4 1 6 BLK 1 3 4 BLK BLK BLK BLK...

Page 335: ...USE H1P H3P PILOT LAMP MR10 MAGNETIC RELAY M1F FAN MOTOR M1S M3S SWING MOTOR PCB1 PCB4 PRINTED CIRCUIT BOARD R1T R2T THERMISTOR S1 S49 CONNECTOR SW1 OPERATION SWITCH V1 VARISTOR X1M TERMINAL STRIP PROTECTIVE EARTH 3D058246D SIGNAL RECEIVER M S1W outdoor FIELD WIRING M M S2W 4 3 2 1 indoor 3 X1M 2 1 E3 S26 BLU S42 PCB4 S48 S41 M1S 3 15A BRN RED 1 RECTIFIER RED LED2 WHT V2 5 H2 GRN S4W TRANSMISSION ...

Page 336: ...BOARD THERMISTOR CONNECTOR OPERATION SWITCH SW7 TERMINAL STRIP PCB1 PCB4 R1T R2T S6 S37 X11A X21A S1W X1M 3D033909F PCB2 LED H1P LED H2P S1W LED H3P 2RTH1 R1T t 10 1 S1 1 C1 BRN F1U S26 2 PCB1 S32 R2T t 1 10 BRN S21 1 indoor 3 1 S7 BLU GRY PPL S1 RED 6 V1TR 1 M1F M 3 BLK Q1M 130 C 1 WHT YLW C1 3 15A F1U Q1M M1F V1TR S1W X1M Z1C H1P H3P R1T R2T PCB1 PCB2 S1 S32 RTH1 GND H2 H3 H1 Z1C N 2 GRN GRN WHT...

Page 337: ...X1M X36A X15A A1P X20A CONTROL BOX X5A BLK RED 3D038357B A1P X1M F2 P2 F1 P1 GRN NOTE 5 YLW C1 WHT NE X2M S1L T1R SS1 P2 MSW P1 M1S M1F C1 M R1T Q1M WIRED REMOTE CONTROLLER IN CASE OF SIMULTANEOUS OPERATION SYSTEM CONNECTER DISCRIMINATION COLOUR FOR COMPONENTS CONNECTER COLOUR FOR COMPONENTS CONNECTER COLOUR FOR PRINTED CIRCUIT BOARD INDOOR UNIT MASTER INDOOR UNIT SLAVE 2 IN CASE USING CENTRAL REM...

Page 338: ...ER THERMAL FUSE VARISTOR TERMINAL STRIP ELECTRONIC EXPANSION VALVE COIL FERRITE CORE PROTECTIVE EARTH CONNECTOR BLACK BLUE BROWN GREY ORANGE RED WHITE YELLOW GREEN DB2 DB1 L1 FIELD WIRING indoor BLK R3T DISCHARGE BLK BLK R2T CONDENSER R1T OUTDOOR BLK 6 BLK S90 1 BLK N L V1 BLK BLK BRN ORG GRY R7T RED YLW S91 WHT R6T M R8T YLW Y2E 6 S20 WHT BLU ORG LIQUID PIPE BLK WHT 1 4 ROOM B GRY ROOM B BLK BLU ...

Page 339: ...EXPANSION VALVE COIL REVERSING SOLENOID VALVE COIL FERRITE CORE PROTECTIVE EARTH CONNECTOR BLACK BLUE BROWN GREY ORANGE RED WHITE YELLOW GREEN 3D055486D DB1 DB2 MRM20 MRM10 indoor outdoor 6 BLK BLK BLK 1 S90 BLK DISCHARGE OUTDOOR R1T CONDENSER BLK R2T R3T BLK N L FIELD WIRING L1 R7T 6 BRN BLU ORG 1 BLK ROOM A ROOM A Y2E ROOM B R8T ROOM B GAS PIPE WHT BLK S20 WHT R5T YLW YLW 1 GRY ROOM A WHT 4 ROOM...

Page 340: ...2 816_A Addition of the wall mounted type FTXG JV1BW S CTXG JV1BW S 11 2010 SiBE12 816_B M 10013 Correction of troubleshooting flowchart AF for SkyAir models 01 2011 SiBE12 816_C Correction of data 02 2011 SiBE12 816_D Addition of the wall mounted type FTXS J2V1B for cooling only model ...

Page 341: ...tant 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 If the outdoor unit is to be installed close to the sea shore direct ex...

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