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Service Manual

1. 114 41 CTXS FTXS CDXS FDXS FVXS Series 114 42 114 37 2 T T LITT 115 Troubleshooting for CTXS FTXS CDXS FDXS FVXS Series 116 5 1 dndoor URI POB Abhortmallly Estes 116 5 2 Freeze up Protection Control Heating Peak cut Control 118 5 3 Fan Motor or Related 119 5 4 Thermistor or Related 123 5 5 Signal Transmission Error Between Indoor Unit and Outdoor Unit 124 5 6 Unspecified Voltage Between Indoor Unit and Outdoor Unit 126 Troubleshooting for FFQ tir te ere 127 6 1 Indoor Unit Abnormality 127 6 2 Drain Level Control System 128 6 3 Fan Motor AC Motor or Related 129 64 Drain System Eu 130 6 5 Thermistor or Related 131 6 6 Remote Controller Thermistor Abnormality 132 6 7 Signal Transmission Error
2. 181 S 183 ME e RU RR 185 OUIOT e cromo e ese be ROI 185 42 CTXS FTXS CDXS FDXS FVXS Series 187 FEST SCE gt 192 5 Silicon Grease on Power Transistor Diode Bridge 199 Parto IL ILS 201 UM ome 201 1 2 uiui cocto e arae 204 ee a Ca 206 ZEN 2 rcc ER 206 2 Vie 010 gal ITUNES 211 V Table of Contents 5105121502 Safety Cautions 1 Safety Cautions Be sure to read the following safety cautions before conducting repair work After the repair work is complete be sure to conduct a test operation to ensure that the equipment operates normally and explain the cautions for operating the product to the customer Caution Items The caution items are classified into f Warning and N Caution The N Warning items are especially important since they can lead to death or serious injury if they are not followed closely The Caution items can also lead to serious accidents under some conditions if they are not followed Therefore be sure to observe all the safety caution items described below Pictograms PAS This symbol indicates the
3. ON OFF INPUT FROM OUTSIDE RECEIVER DISPLAY UNIT NOTES PRINTED CIRCUIT BOARD 1 A4P PRINTED CIRCUIT BOARD m BS1 PUSH BUTTON SWITCH ON OFF A TIR CONTROL BOX NOTE TERMINAL FIELD WIRING OPTIONAL ACCESSORY JE CONNECTOR PROTECTIVE GROUND SCREW NOISELESS GROUND 2 IN CASE USING CENTRAL REMOTE CONTROLLER CONNECT IT TO THE UNIT IN ACCORDANCE WITH THE ATTACHED INSTALLATION MANUAL 3 24 X33A X35A AND X40A ARE CONNECTED WHEN THE OPTIONAL ACCESSORIES ARE USED M ders 222 NOTE 4 eC CEDE F NOTE 3 NOTER HAP AL WIRED CONTROLLER OPTIONAL CCESSORY Cb 15 T 4 GROUND THE SHIELD OF THE REMOTE CONTROLLER CORD TO THE INDOOR UNIT IN CASE OF USING SHIELD WIRE 5 SYMBOLS SHOW AS FOLLOWS RED RED BLK BLACK WHT WHITE YLW YELLOW GRN GREEN BLU BLUE 1 Note For the location of the switch 551 on control PCB A1P refer to page 26 C 3D080351A Appendix SiUS121502E Wiring Diagrams 2 2 Outdoor Unit 2MXS18NMVJU GRN YLW PCB2 ED 542 5 4 e 12345 69 L2 C909090909 09 _______ 11 1 5
4. jt JP21 747 0401 8 LN Lena L d x t L 5 eg 7 2 ETT L l O 37 apis 2942 526 4 i am 532 R LED A S32 S26 2P292535 1 Replace the PCB if you accidentally cut the jumpers other than JA JB and JC Jumpers are necessary for electronic circuit Improper operation may occur if you cut any of them d Note The symbols in the parenthesis are the names on the appropriate wiring diagram 22 Printed Circuit Board Connector Wiring Diagram SiUS121502E Display PCB 51 2 SW1 S1W 3 LED2 H2P 4 LEDS 5 RTH1 R1T Indoor Unit Connector for control PCB Forced cooling operation ON OFF button LED for timer yellow LED for operation green Room temperature thermistor 51 potum ae er LED2 RTH1 LOT No 51 2P084375 1 POF S SW1 2P084375 1 LED 1 does not function d Note The symbols in the parenthesis are the names on the appropriate wiring diagram Printed Circuit Board Connector Wiring Diagram 23 Indoor Unit SiUS121502E 1 4 FVX S09 12 18NVJU Control PCB PCB2 1 51 Connector for fan motor 2 521 Connector for centralized control HA 3 S26 Connector for service PCB 4 S32 Indoor heat exchanger thermistor 5 S41 Connector for lower air outlet motor 6 542 Connector for swing motor 7 546 Connec
5. 1 Operation mode Auto Jess 7 lt display Cool 74 3 Setpoint display 2 Fan Speed Heat 7 6 Ventilation 59 STANDEY 4 Stand by for function om function ien not available cr Defrost Hot start lt Message lt Standard display example gt Detailed Display B The air flow direction clock and detailed selection items appear on the detailed display screen in addition to the items appearing on the standard display 13 Current Day time 12 24 hour time Fri 11 034 display 12 Air Flow Direction o Displayed only when 2 00 Ae the air conditioner is in 14 AUTO ERV AIR Th ajay 14 Detailed selection operation STANDBY lt Detailed display example 1 gt No Clock display FFQ Series No Fan speed MASTER ED CONTROLLED when the clock has display EIE not been set with no fan speed Auto 15 1 amp 1 display control function No Detailed item No Air Flow T display Direction display ERV PURIFY STANDBY with no detailed items with no air flow direction selected settings Remote Controller Detailed display example 2 87 1 Operation mode e Used to display the current operation mode Cool Heat Vent Fan Dry or Auto 2 Fan Speed e Used to display the
6. ROOMC ROOMD 18215 18225 15235 i e wi 993 7 B oq 5258 5298 52350 lt lt 3 lt 5 l gt gt gt 65 65 mm J uL it it it 1 Y1E Y2E Y4E c f 225 Baas S 2g 52 INDOOR _____ _________________________________ lt 5 gt _ _SLIQUID PIPE gt 2988 ____________ J C110 CAPACITOR MRM10 MRM20 MAGNETIC RELAY SW1 FORCED OPERATION ON OFF SW SW1 Y1E Y4E ELECTRONIC EXPANSION VALVE COIL DB1 DIODE BRIDGE MR4 MAGNETIC RELAY SW2 FORCED OPERATION MODE SELECT SW SW2 15 REVERSING SOLENOID VALVE COIL FU1 FU2 FU3 FUSE PCB1 2 PRINTED CIRCUIT BOARD SW3 WIRING ERROR CHECK SW SW3 Z1C Z6C FERRITE CORE IPM1 INTELLIGENT POWER MODULE PS SWITCHING POWER SUPPLY SW4 PRIORITY ROOM SETTING SW SW4 ZF NOISE FILTER HH E 11 12 LIVE Q1L OVERLOAD PROTECTOR SW5 FUNCTION SW SW5 5 52 5502 CONNECTOR FIELD WIRING LED1 LED5 LEDA PILOT LAMP R1T R7T R9T R12T THERMISTOR SW6 NIGHT QUIET MODE SETTING SW SW6 U VW CONNECTOR M1C COMPRESSOR MOTOR SA1 SURGE ARRESTER V2 V3 V401 VARISTOR X11A CONNECTOR 3D089856 M1F FAN MOTOR SHEET METAL TERMINAL STRIP FIXED PLATE X1M X5M TERMINAL STRIP d Note PCB1 Main PCB PCB2 Service monitor PCB Appendix R
7. Spero WANE ee ee Air purifying filter with photocatalytic Operation limit for heating CWB mde deodorizing function Operation limit for heating EET Titanium apatite photocatalytic PAM control air purifying filter Bwmgcompesor repete efe Rotary compressor e Reluctance DC motor Washable gle _ Ero RES 1 Functions Category Functions TXSO7LVJU TXSO7LVJU gt st N LO N T NS gt lt LL FTXS09 12 15 18 24LVJU Wide angle louvers vertical blades 24 hour ON OFF TIMER NIGHT SET mode Pele e Worry Free Auto restart after power failure Reliability 4 jDurabity Self diagnosis R C LED EJEA Auto swing up and down Auto swing right and left e 3 D airflow COMFORT AIRFLOW operation Wiring error check function Comfort Auto fan speed CORE Anti corrosion treatment of outdoor heat Indoor unit quiet operation exchanger uni mad Fils power corespondene INTELLIGENT EYE operation e High osling appicaton e Ether side e e Automatic derosing Poverselecion Operation Automatic operation e F C changeover R C temperature ES Li
8. Wa Pd AH Forced cooling operation ON OFF switch SW1 R22273 178 Trial Operation and Field Settings SiUS121502E Wiring Error Check Function 2 Wiring Error Check Function Outline Wiring error check function is designed for the microcomputer to correct wiring errors itself If local wiring is unclear in the case of buried piping for example just press the wiring error check switch on the outdoor unit Even if the connections for Room A and Room B are confused the system may run without a hassle Note that this check function does not work in the following cases B For 3 minute standby period after the power is turned on or after the compressor has stopped When the outdoor temperature is below 5 C 41 F B If the indoor unit is in trouble also in case of all room transmission failure When the piping and wiring are perfect there is no need to use this function Procedure 1 Press the wiring error check switch SW3 on the service monitor PCB of the outdoor unit and the wiring error check function is activated 2 In about 15 20 minutes the check finishes automatically 3 When the check is over the service monitor LED indicators start blinking Judgment Blinking one after another Self correction completed Status All blinking Self correction impossible Any of the LEDs stay on Emergenay stop B Self corr
9. Hemote control adaptor normal open contact option COOL HEAT mode lock HOME LEAVE operation ECONO operation DIII NET compatible adaptor option Controller Wired option Indoor unit ON OFF button ES Signal receiving sign with back light a ue Temperature Note Available Not available 4 List of Functions SiUS121502E Functions u Basic Inverter with inverter power control with inverter power control Inverter with inverter power control e Health amp Air purifying filter EX Operation limit for cooling Photocatalytic deodorizing filter Operation imiter cooling e Air purifying filter with photocatalytic Operation limit for heating CWB deodorizing function Operation limit for heating CFWB Titanium apatite photocatalytic PAM control air purifying filter Bwmgcompesor repete y Rotary compressor Reluctance DC motor wasae Je Wide angle vertical blade ONIOFFTIMER Auto swing up Auto swing ight NIGHT SET mode J Wony Free after power aie _ COMFORT AIRFLOW operation JEN Control aE Indoor unit quiet operation Anti corrosion treatment of outdoor heat EEN exchanger NIGHT
10. dB A 41 33 25 22 42 35 28 25 45 37 29 23 45 39 29 26 SomdPowrlew _ 1 dB 8 58 Ed dias 558 6160 Conversion Formulae kcal h kW x 860 Btu h 2 kW x 3412 cfm m3 min x 35 3 8 Specifications SiUS121502E Indoor Unit 60 Hz 208 230 V Coong Rated Capacity Front Panel Color 371 10 5 360 10 2 399 11 3 Fan i Air Direction Control Air Filter i H M L SL EN 45 40 35 32 43 38 33 30 46 41 36 33 45 40 35 32 8 8 8 amp e T 1 38 Drawing No O O O Rated Capacity Front Panel Color White 643 18 2 494 14 0 350 9 9 328 9 3 Cross Flow Fan Fan 48 5 Steps Quiet Auto Air Direction Control Air Filter Running Current Rated Power Consumption Rated Power Factor Rated Der orsi Control Microcomputer Control 13 3 8 x 41 5 16 x 9 3 4 340 x 1 050 x 248 13 x 45 11 16 x 16 7 8 331 x 1 160 x 429 31 14 Gross Weight Gross Mass 46 21 Pressure dB 51 44 37 34 48 421 37 SomdPowrled dB Heat Insulation Both Liquid and Gas Pipes 6 4 6 64 5 8 15 9 5 8 16 0 Drawing No 3D075045 Piping Connections Conversion Formulae kcal h kW x 860 Btu h 2 kW x 3412 cfm m3 min x 35 3 Specifications 9 Indoor Unit SiUS121502E 60 Hz
11. C amp ES3 Back y Next Select i To return to the time setting press The set temperature is only displayed when the mode setting is on Next 9 Press 5 The temperature will be set and go to the next reservation setting The temperature is set while in ON TIMER operation and the time is set while in OFF TIMER operation The next reservation screen will appear To continue further settings repeat the procedure from STEP 4 10 Press complete the setting Be sure to direct the remote controller toward the indoor unit and check for a receiving tone and blinking of the OPERATION lamp id 15 displayed on the LCD and WEEKLY TIMER operation is activated The TIMER lamp lights orange Oo xx ON OFF Display A reservation made once can be easily copied and the same settings used for another day of the week Refer to Copy mode NOTE Notes on WEEKLY TIMER operation Do not forget to set the clock on the remote controller first The day of the week ON OFF TIMER mode time and set temperature only for ON TIMER mode can be set with the WEEKLY TIMER Other settings for the ON TIMER are based on the settings just before the operation e 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
12. Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Check No 01 Refer to P 166 Service Diagnosis Check the connection of connectors Correct the connection Check No 01 Check the thermistor resistance value NO Heplace the defective thermistor Replace the indoor unit PCB control PCB R21870 Indoor heat exchanger thermistor 22 Room temperature thermistor 123 Troubleshooting for CTXS FTXS CDXS FDXS FVXS Series SiUS121502bE 5 5 Signal Transmission Error Between Indoor Unit and Outdoor Unit Error Code Method of Error The data received from the outdoor unit in signal transmission is checked whether it is normal Detection Error Decision The data sent from the outdoor unit cannot be received normally or the content of the data is Conditions abnormal Supposed B Reduction of power supply voltage Causes B Wiring error B Breaking of the connection wires between the indoor and outdoor units wire No 3 Defective outdoor unit PCB B Short circuit inside the fan motor winding B Defective indoor unit PCB Disturbed power supply waveform 124 Service Diagnosis SiUS121502E Troubleshooting Check No 11 Refer to P 168 Service Diagnosis Troubleshooting for CTXS FTXS CDXS FDXS FVXS Series Be sure to turn off power switch before connecting or disconnecting Caution connectors or parts may be damage
13. gt S Select ON TIMER OFF TIMER No Setting Pressing puts the sequence in reverse 5 gt e The selected reservation will be deleted 6 Press E f there are still other reservations WEEKLY TIMER operation will be activated Reservations for each day of the week This function can be used for deleting reservations for each day of the week t can be used while confirming or setting reservations 1 Press E The day of the week and the reservation number will be displayed 2 Press to select the day of the week to be deleted 3 Hold 9 for about 5 seconds The reservation of the selected day of the week will be deleted 4 Press E f there are still other reservations WEEKLY TIMER operation will be activated All reservations Hold for about 5 seconds with the normal display Be sure to direct the remote controller toward the indoor unit and check for a receiving tone This operation cannot be used for the WEEKLY TIMER setting display All reservations will be deleted 52 Function and Control SiUS121502E Function of CTXS FTXS CDXS FDXS FVXS Series 1 14 Other Functions 1 14 1 Hot Start Function d Note In order to prevent the cold air blast that normally occurs when heating operation starts the temperature of the indoor heat exchanger is detected and the airflow is either stopped or significantly weakened resulting in
14. Service Multi Split Type Air Conditioners 2 3 4 5 Series 22 Applied Models e Inverter Multi Heat Pump SiUS121502E Multi Split Type Air Conditioners 2 3 4 5 Series eHeat Pump Indoor Unit CTXSO7LVJU FDXSO9LVJU FVXS09NVJU FTXSO9LVJU FDXS12LVJU FVXS12NVJU FTXS12LVJU CDXS15LVJU FVXS18NVJU FTXS15LVJU CDXS18LVJU FTXS18LVJU CDXS24LVJU FTXS24LVJU Outdoor Unit 2MXS18NMVJU 3MXS24NMVJU 4MXS36NMVJU FFQO9LVJU FFQ12LVJU FFQ15LVJU FFQ18LVJU Table of Contents 5105121502 UU T UU vi 1 1 Warnings and Cautions Regarding Safety of Workers vi 1 2 Warnings and Cautions Regarding Safety of 5 5 viii USCA ICONS M xi Part 1 List of Functions D JE FUNCION S CETT 2 Pare 2 Mec OOO THREE 8 2 14 Part 3 Printed Circuit Board Connector Wiring Diagram 17 o eere a a ENE A A 18 VZEXSOZLVJU FIX SOJ IU
15. To use the remote controller aim the WUR Do 30 00 TEMPERATURE SATSUN 42 0 204242 transmitter at the indoor unit If there adjustment buttons is anything blocking the signals between the unit and the remote temperature Seting controller such as a curtain the unit a 18 30 may not operate or wil AUTO 64 86 F e The maximum transmission distance is about 23 ft 7 m 4 DRY Not available 18 32 C FAN setting button 10 30 Selects the airflow rate setting 50 86 F every time you press this button FAN Notavalfable QTY Le Auto Indoor unit quiet Lo ON OFF button E Press this button once to start operation Press once again to stop it High Middle high Middle n indoor unit quiet operation operation sound becomes weak The airflow rate also decreases In DRY operation the airflow rate setting is not available POWERFUL button e Starts POWERFUL operation lt ARC466A21 gt R21928 Reference Refer to the following pages for detail Inverter POWERFUL operation 1 Note Refer to the operation manual of applicable model for detail You can download operation manuals from Daikin Business Portal Daikin Business Portal Product Information Operation Installation Manual URL https global1d daikin com business_portal login Remote Controller 83 FVXS Series Open the Front
16. Press the MODE button to exit from the diagnosis mode ON OFF 14548 The display 7 means the trial operation mode Refer to page 181 for trial operation WDAIKIN R9879 9 Press the ON OFF button twice to return to the normal mode move CI C CL JC JC R14549 Note When the remote controller is left untouched for 60 seconds it returns to the normal mode 104 Service Diagnosis SiUS121502E Service Diagnosis 3 1 2 ARC466 Series Remote Controller Method 1 1 When the timer cancel button is held down for 5 seconds 22 is displayed on the temperature display screen Weekly Back Next Off Cancel Timer cancel button ARC466 Series gt R21282 2 Press the timer cancel button repeatedly until a long beep sounds B indication changes in the sequence shown below 1 Note 1 Ashort beep or two consecutive beeps indicate non corresponding codes 2 Toreturn 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 method 2 Refer to page 106 Service Diagnosis 105 Service Diagnosis 5105121502 Method 2 1 Press the center of the Temp button and the Mode but
17. S A ME Eo E DRE X24A Rea 13 n 2 b E Cg 5 a cas One YER bine oS cas lt gt gx mE du 7 24A 55 5 A X36A 40 551 17 X15A 2P095006 8 Printed Circuit Board Connector Wiring Diagram SiUS121502E Wired Remote Controller 2 Wired Remote Controller 21 BRC1E71 Wired Remote Controller PCB 1 P1 P2 Terminal for indoor unit 2 RIT Room temperature thermistor Lors RIT 2P243326 3 Printed Circuit Board Connector Wiring Diagram 27 Wired Remote Controller 2 2 BRC1E72 73 Wired Remote Controller PCB 1 P1 P2 2 RIT P2 P1 28 Tote SiUS121502E Terminal for indoor unit Room temperature thermistor PHA IC4 5 BS Corm JOE 88 a Cha L ci KENN O SIDE A 2P298037 3 2P298037 7 Printed Circuit Board Connector Wiring Diagram SiUS121502E Wireless Remote Controller 3 Wireless Remote Controller 3 1 BRC7E830 Signal Receiver PCB 1 X1A 2 X2A 3 SS1 4 552 Display CD SI GE JU us O Connector for display PCB Connector for control PCB MAIN SUB setting switch Refer to page 196 for detail Address setting switch Refer to page 196 for detail
18. 11 c 77 Part 5 Remote 4 7 1 OTAS EP RTT 79 2 CDAS FDXS SONES 81 36 83 85 4 1 lt BRC1E71 gt Wired Remote 85 4 2 BRC1E72 73 Wired Remote Controller eee 90 4 3 lt BRC7E830 gt Wireless Remote Controller 96 Part 6 Service 5 5 97 General Problem Symptoms and Check ltems 99 2 Tro bleshiootirig WITT EBD ate doo uerus Ite dedo mus 100 Zed WAGOOE AION rS 100 22 NUIT Me HE 101 bs DI AQT cS 102 31 CTXS FTXS CDXS FDXS FVXS Series a a 102 922 FEO SEGS 108 Code Indication on Remote 114 41 CTXS FTXS CDXS FDXS FVXS Series 114 a 114 43 115 Troubleshooting for CTXS FTXS CDXS
19. Wireless Remote Controller 29 Or p ut e EM 29 OO DR TRU 30 Printed Circuit Board Connector Wiring Diagram 17 Indoor Unit 1 Indoor 1 1 Control PCB PCB1 51 521 525 532 541 546 547 H1 H2 H3 FG JA SU us 10 JB 11 12 LED A 13 FU1 F1U FU2 14 V1 546 525 P 8 EXIST 525 cur lt lt lt 5 CA 5 E Caution Replace the PCB if you accidentall X 5 m 60 gt Dems er Wr __ SiUS121502E CTXSO7LVJU FTXS09 12LVJU Connector for DC fan motor Connector for centralized control HA Connector for INTELLIGENT EYE sensor PCB Indoor heat exchanger thermistor Connector for swing motors Connector for display PCB Connector for signal receiver PCB Connector for terminal board Address setting jumper Refer to page 189 for detail Fan speed setting when compressor stops for thermostat OFF Refer to page 191 for detail Power failure recovery function auto restart Refer to page 191 for detail LED for service monitor green Fuse 3 15 A 250 V Varistor R330 V1 ly 83072 Cals gt 2 206687 4 cut
20. f the clock is not set will be displayed 12 hour time format is displayed by default Select 12 24 hour time display option in the main menu under Clock amp Calendar 14 Selectable Display Item Room temperature is selected by default For other choices see the operation manual 15 XUnable to schedule Displayed when the clock needs to be set e The schedule function will not work unless the clock is set Remote Controller FFQ Series 95 FFQ Series SiUS121502E 4 3 lt BRC7E830 gt Wireless Remote Controller P DAIKIN R18863 R17873 DISPLAY A SIGNAL TRANSMISSION PROGRAMMING TIMER BUTTON This lights up when a signal is being Use this button for programming start and or transmitted stop time Operates with the front cover of the remote controller opened DE en as e MODE START STOP BUTTON OPERATION MODE TIMER MODE START STOP BUTTON 13 TIMER RESERVE CANCEL BUTTON This display shows the current operation 14 SWING BUTTON mee OPERATION MODE SELECTOR BUTTON DISPLAY 2 SET TEMPERATURE Press this button to select operation mode This display shows the set temperature FILTER SIGN RESET BUTTON DISPLAY 4 PROGRAMMED NSPECTION TEST BUTTON TIME 17 This button is used only by qualified service This display shows programmed time of persone the system start
21. de 18 12 FIXSIST E PAL 20 1 3 FDXS09 12LVJU CDXS15 18 24LVJU 22 VA BIN a a 24 1 5 26 2 Wired Remote 27 BROTE Z Tria tastes EO 27 2 29 alae 28 Wireless Remote Controller 29 Sd BRGZESUAt sce RUD eee oe rd 29 A QUIIOOF UTE s eco edm seb 30 Part 4 Function and Control 2 2 0 22222222222222222222222222222222 D 1 Function of CTXS FTXS CDXS FDXS FVXS Series 34 del RR 34 1 2 Treguency uem 34 1 3 Airflow Direction Control CTXS FTXS FVXS 36 1 4 Fan Speed Control for Indoor 39 1 5 Program Dry Operation 40 Le ue ie8 iien NER 41 1 7 Thermostat 42 1 97 SET MOGE hU ttl a 43 19 ECON Operation end 43 1 10 INTELLIGENT EYE Operation CT
22. ovo 8 22 5 DRY Not available 18 32 C 10 30 C 50 86 F Not available ON OFF button e Press this button once to start operation Press once again to stop it POWERFUL button POWERFUL operation R18852 Refer to the operation manual of applicable model for detail You can download operation manuals from Daikin Business Portal Daikin Business Portal Product Information Operation Installation Manual URL https global1d daikin com business_portal login 79 CTXS FTXS Series SiUS121502E Open the Front Cover MODE button Selects the operation mode AUTO DRY COOL HEAT FAN ECONO button ECONO operation om SWING button e Adjusts the airflow direction operation P e When you press the SWING OUTDOOR UNIT QUIET button the flap moves up and operation is not available in down or the louver FAN and DRY operation T 3 moves right and left The flap 2 MODE louver stops when you press be used at QUIET COMFORT SWING the SWING button again the same time Priority is given to the function you SENSOR WEEKLY button pressed last WEEKLY WEEKLY button COMFORT 2 SENSOR gt gt PROGRAM button button COPY button Every time you press the BACK button COMFORT SENSOR button NEXT button the setting changes in the following order WEEKLY TIMER S operation COMFORT INTELLIGENT ON
23. the indoor heat unctioning exchanger thermistor Replace the outdoor unit PCB main PCB R21118 RC Outdoor temperature thermistor Discharge pipe thermistor Outdoor heat exchanger thermistor Liquid pipe thermistor Gas pipe thermistor ERAT Qr z ze Om 1 161 SiUS121502E Troubleshooting for Outdoor Unit 7 18 Electrical Box Temperature Rise gt Error Code Outdoor Unit LED Display Ad 15 20 30 40 50 Method of Error Detection compressor off Error Decision Conditions An electrical box temperature rise is detected by checking the radiation fin thermistor with the With the compressor off the radiation fin temperature is above A B The error is cleared when the temperature drops below B Tocoolthe electrical components the outdoor fan starts when the radiation fin temperature rises above C and stops when it drops below B A B C 100 C 212 F 70 C 158 F 85 C 185 F Defective outdoor fan motor Short circuit Defective radiation fin thermistor Disconnection of connector Defective outdoor unit PCB Supposed Causes Troubleshooting Caution connectors or parts may be damaged Check No 17 the power to restart the system Check No 19 Refer to P 174 Error again or outdoor YES fan activated NO temperature Check No 19 Check the outdoor fan NG OK
24. Note PCB1 Main PCB PCB2 Service monitor PCB Refer to Part 3 for Printed Circuit Board Connector Wiring Diagram Appendix 211 Wiring Diagrams SiUS121502E 3MXS24NMVJU PCB2 LED 542 4 M1C visi SURFER 12345 6515 pr L2 9999099 somssssos gt CASE OF co HEAT PUMP TO INDOOR UNIT muc 1 ROOM BI TSS X11A 3 PCB1 Tee 4 3 SA1 1 FU3 2 30A V2 seo 3 RED BLU YLW ROOM A ROOM B ROOM ROOM D 92 593 S90 S40 om om amp gt To CD lt c c gt ce INDOOR L OUTDOOR GAS PIPE gt lt LIQUID PIPE gt J C110 CAPACITOR MRM10 MRM20 MAGNETIC RELAY FORCED OPERATION ON OFF SW SW1 ELECTRONIC EXPANSION VALVE COIL DB1 DIODE BRIDGE MR4 MAGNETIC RELAY SW2 FORCED OPERATION MODE SELECT SW SW2 15 REVERSING SOLENOID VALVE COIL FU1 FU2 FU3 FUSE PCB1 2 PRINTED CIRCUIT BOARD SW3 WIRING ERROR CHECK SW SW3 Z1C Z6C FERRITE CORE IPM1 INTELLIGENT POWER MODULE PS SWITCHING POWER SUPPLY SWA PRIORITY ROOM SETTING SW SW4 ZF NOISE FILTER 2 LIVE Q1L OVERLOAD PROTECTOR SW5 FUNCTION SW SW5 852 5502 CONNECTOR FIELD WIRING LED1 LEDS LEDA
25. Refer to page 114 115 10 Press the Mode button for 5 seconds to exit from the service check mode When the remote controller is left untouched for 60 seconds it returns to the normal mode also R11672 107 Service Diagnosis 3 2 FFQ Series 3 2 1 BRC1E71 72 73 Note Relations Between Modes Basic Screen Operation mode changeover Fan speed control Menu display Confirmation of each setting On Off Cancel Operation lamp Press the Cancel button for 4 seconds or more Service Settings Test Operation Maintenance Contact Field Settings Energy Saving Options Prohibit Function Min Setpoints Differential Setting Service Settings screen Service Settings Test Operation Maintenance Contact Field Settings Energy Saving Options Prohibit Function Min Setpoints Differential Group Address Indoor unit AIRNET Address Outdoor unit AIRNET Address Error History Indoor Unit Status Outdoor Unit Status Forced Fan ON Switch Main Sub Controller Filter Indicator Test Filter Auto Clean Brush Filter Ind Disable Filter Auto Clean 108 Main Menu Airflow Direction Quick Start Schedule Off Timer Celsius Fahrenheit Maintenance Information Setting Main Menu screen Press the Cancel button once Press the Menu OK button once Cool Set to 68 Basic screen P
26. Remarkable decrease in power supply voltage Layer short inside the fan motor winding Breaking of wire inside the fan motor Breaking of the fan motor lead wires Defective capacitor of the fan motor Defective indoor unit PCB 119 Troubleshooting for CTXS FTXS CDXS FDXS FVXS Series Troubleshooting Check No 02 Refer to P 167 120 SiUS121502E Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Check the power supply voltage Is the voltage fluctuation within 10 from the rated value Correct the power supply Turn off the power and rotate the fan by hand Does the fan rotate smoothly Replace the indoor fan motor Turn on the power and start operation Note The motor may break when the motor connector is disconnected while the power is turned on Be sure to turn off the power before connector TES Check No 02 Check the output of the fan motor connector Turn off the power and NO disconnect the fan motor Does the fan connector then turn the rotate power on Motor power supply voltage 310 340 VDC NO the indoor unit PCB control PCB YES control voltage 15 NO VDC generated Replace the indoor unit PCB control PCB YES Rotation command voltage 1 6 5 VDC NO Stop the fan motor Replace the indoor
27. X1M SiUS121502E 1 2 3 OUTDOOR FIELD WIRING CAUTION NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN PILOT LAMP FAN MOTOR PRINTED CIRCUIT BOARD THERMAL PROTECTOR FOR MOTOR THERMISTOR CONNECTOR OPERATION SWITCH TRIAC TERMINAL BLOCK Refer to Part 3 for Printed Circuit Board Connector Wiring Diagram C 3D073998B Appendix SiUS121502E FVXS09 12 18NVJU WIRELESS REMOTE CONTROLLER ES Appendix RECTIFIER TRANSMISSION CIRCUIT PCB4 SIGNAL S RECEIVER LED2 LED1 69 65556550 S21 99599 HA BLU Wiring Diagrams nd 2 gt e OUTDOOR FIELD WIRING CAUTION NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF TURNED OFF AND THEN BACK PCB1 Sensor PCB PCB2 Control PCB PCB3 Service PCB PCB4 Display PCB THE MAIN POWER SUPPLY IS ON AGAIN PROTECTIVE GROUND F1U F2U FUSE H2P PILOT LAMP M1F FAN MOTOR M1S SWING MOTOR M2S LOWER AIR OUTLET MOTOR 1 4 PRINTED CIRCUIT BOARD R1T R2T THERMISTOR 51 549 CONNECTOR OPERATION SWITCH
28. c Second code No d Mode Remote controller Press and hold the Cancel button for 4 seconds to enter the Service Settings menu Use the VA buttons to select Field Settings Sarees and push the Menu OK button ae eT Contact Energy Saving ptions Prohibit Function Min Setpoints Differential Setting gt R18832 Use the VA buttons to select the desired Mode Field Settings Unit Mode R18831 During group control when setting by each indoor unit Mode 20 21 22 or 23 have been selected push the lt button to highlight and VA buttons to select the Unit No to be set This operation is unnecessary when setting by group Highlight the second code No to be changed using the 4 buttons and use the VA buttons to select the desired second code No Field Settings Unit No 0 2 0 1 01 4 5 0 12 13 18833 When setting by group of the second code No that may be set are displayed as 192 Trial Operation and Field Settings 5105121502 Field Settings Remote controller Push the Menu OK button to display the confirmation screen Use the gt buttons to select Yes and push the TETUR Menu OK button ield Settings Save the settings Setting R18834 When multiple setting changes are needed repeat steps 3 to 7 BRC7E830 DON OFF Mode No UP button Field setting mode serTiNG DOWN
29. 00000 EXIST 1 R22010 Caution Replace the PCB if you accidentally cut a wrong jumper Jumpers are necessary for electronic circuit Improper operation may occur if you cut any of them Trial Operation and Field Settings 189 Field Settings 5105121502 FVXS Series 1 Remove the front grille 2 Lift the sensor PCB fixing plate and remove the front shield plate 3 Disconnect the connectors S1 S41 S42 4 Remove the electric box 1 screw 5 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 5 Indoor heat exchanger thermistor Connector S42 Connector S41 3 Connector S1 4 Remove the screw Sensor PCB fixing l plate Front shield plate 6 Shield plate R21129 Caution Replace the PCB if you accidentally cut a wrong jumper Jumpers are necessary for electronic circuit Improper operation may occur if you cut any of them 190 Trial Operation and Field Settings SiUS121502E Field Settings Wireless Remote 1 Remove the cover and take it off Controller 2 Cut the address setting jumper ARC452 series ARC466 series ADDRESS ADDRESS EXIST 1 EXIST CUT 2 2 R12065 Do not cut the left jumper R18416 Caution Replac
30. 7 16 CT or Related Abnormality LH e Error Code Outdoor Unit LED 10220 30 40 50 Display Method of Error A CT or related error is detected by checking the compressor running frequency and CT detected Detection input current Error Decision B The compressor running frequency is more than A Hz and input current is less than A Conditions Du A Hz B A If the error repeats the system is shut down Reset condition Continuous run for about 60 minutes without any other error Supposed Causes Defective power module Broken or disconnected wiring Defective reactor Defective outdoor unit PCB 158 Service Diagnosis SiUS121502E Troubleshooting Check No 15 Refer to P 171 Check No 21 Refer to P 175 Service Diagnosis Troubleshooting for Outdoor Unit N Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Turn off the power Then turn on the power to restart the system Start operation Running current as shown at right the outdoor unit with relay cable 1 Current Capacitor charged when PCB main PCB or 2 guideline the indoor unit or outdoor unit main relay turns on NO Check No 21 Check the capacitor voltage YES Rising with increasing frequency Turn off the power Disconnect the 100 Within 320 VDC harnesses U V and W NO Measure t
31. Connect the wirings correctly Replace the indoor unit PCB control PCB Normal R22125 135 Troubleshooting for Outdoor Unit 5105121502 7 Troubleshooting for Outdoor Unit 7 1 Refrigerant Shortage Error Code LILI Outdoor Unit LED 10 2060 30 402 50 Display Method of Error Refrigerant shortage is detected by checking the input current value and the compressor output Detection frequency If the refrigerant is short the input current is smaller than the normal value Error Decision The following conditions continue for 7 minutes Conditions Input current lt A x output frequency B Output frequency gt C AO B Hz 24 36 class 27 1000 2 error repeats the system is shut down B Reset condition Continuous run for about 60 minutes without any other error Supposed Disconnection of the discharge pipe thermistor indoor or outdoor heat exchanger thermistor Causes room or outdoor temperature thermistor Closed stop valve Refrigerant shortage refrigerant leakage Poor compression performance of compressor Defective electronic expansion valve 136 Service Diagnosis SiUS121502E Troubleshooting Check No 01 Refer to P 166 Check No 12 Refer to P 169 Service Diagnosis Troubleshooting for Outdoor Unit N Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Any thermistor disconnected
32. Connector for swing motors Connector for display PCB Connector for signal receiver PCB Connector for terminal board Address setting jumper Refer to page 189 for detail Fan speed setting when compressor stops for thermostat OFF Refer to page 191 for detail Power failure recovery function auto restart Refer to page 191 for detail LED for service monitor green Fuse 3 15 A 250 V Varistor eio Din Caution C20 R330 m 209 EXE _ RSS 0 39885 38 7 zm m cep c 015111 2 ds ASA f 4 KRIS SM REIS 112 S V E 2 272 T3 5 H250V BLK AC220V 240V EEEREN a _ 90207 2 227881 6 Replace the PCB if you accidentally cut the jumpers other than JB and JC Jumpers are necessary for electronic circuit Improper operation may occur if you cut any of them d Note The symbols in the parenthesis are the names on the appropriate wiring diagram 20 Printed Circuit Board Connector Wiring Diagram SiUS121502E Signal Receiver PCB PCB2 Display PCB PCB3 INTELLIGENT EYE Sensor PCB PCB4 1 548 1 536 Indoor Unit Connector for control PCB 3P224121 1 3P224121 1 Connector for control PCB Forced cooling operation
33. Function and Control 69 Control Specification 5105121502 3 11 Defrost Control Outline Defrosting is carried out by the cooling cycle reverse cycle The defrosting time or outdoor heat exchanger temperature must be more than a certain value to finish defrosting Detail Conditions for Starting Defrost B The starting conditions are determined with the outdoor temperature and the outdoor heat exchanger temperature B The system is in heating operation The compressor operates for 6 minutes B More than A minutes of accumulated time have passed since the start of the operation or ending the previous defrosting Conditions for Canceling Defrost The judgment is made with the outdoor heat exchanger temperature B C C F E Hz control q y Hz 0 Hz G sec F sec H sec J sec ON Compressor OFF ON OFF 5 sec 5 sec ON Fan OFF Four way valve Electronic expansion valve opening Normal Kpulse L pulse M pulse N pulse Starting operating room control zone zone zone zone control Electronic expansion valve opening stop Normal P pulse zone Q pulse Starting room control zone control R21926 70 Function and Control 5105121502 Control Specification A gt bp Fi F Que 10x o The same value continues 3 12 Low Hz High Pressure Limit Outline The system controls the upper limit of the frequency to preven
34. Min Setpoints Differential R18827 Action o O P cooling operation with the remote controller and start operation by pressing ON OFF utton for 3 minutes Press the SWING button to make sure the unit is in operation Press the INSPECTION TEST button est and operate normally Confirm all the function of unit according to the operation manual If the decoration panel has not been installed turn off the power after the test operation Press the INSPECTION TEST button 2 times and operate at test operation mode Trial Operation and Field Settings SiUS121502E Field Settings 4 Field Settings 4 1 Outdoor Unit 4 1 1 Priority Room Setting Outline 1 2 4 1 Operation mode The operation mode of the prioritized room takes precedence For example when the prioritized indoor unit starts cooling operation the other indoor units which have been in heating operation enter the standby mode Heating operation will resume if the prioritized indoor unit stops cooling operation POWERFUL operation The electronic expansion valves are controlled to provide more capacity to the prioritized room and the capacities for the other indoor units will be slightly reduced OUTDOOR UNIT QUIET operation When the OUTDOOR UNIT QUIET operation is selected in the prioritized room the outdoor unit runs quietly Without priority room setting OUTDOOR UNIT QUIET operation starts only when the f
35. Replace the thermistor s in position Discharge pipe thermistor Indoor or outdoor heat exchanger thermistor Room temperature thermistor Outdoor temperature thermistor YES Stop valve closed Open the stop valve NO Check for refrigerant shortage Oil oozing at relay YES pipe connections Repair the pipe flare or replace the union NO Oil oozing at internal YES piping NO NO Check the pipes for improper contact and correct them as required Replace the cracked pipe Compressor vibrating too much YES Check the power transistor harness for loosening Correct it as required Also replace the cracked pipe Check No 12 NO Electronic expansion valve Replace the electronic functioning expansion valve YES Change for a specified amount of fresh refrigerant Refrigerant shortage error Completed again YES Check No 01 NG Check the thermistors the defective thermistor s OK Heplace the outdoor unit PCB main PCB Error again Completed YES Replace the compressor R20401 137 Troubleshooting for Outdoor Unit 5105121502 7 2 Low voltage Detection Over voltage Detection Error Code Outdoor Unit LED Display Method of Error Detection Error Decision Conditions Supposed Causes 138 gt T Ad 1032030 40 50 Indoor Unit The zero cross detection of the power supply is ev
36. S2W 4 UPWARD AIR FLOW LIMIT SWITCH SAW AIR OUTLET SELECTION SWITCH X1M TERMINAL STRIP E3 EARTH TERMINAL HEAT EX 4 EARTH TERMINAL SHIELD PLATE Refer to Part 3 for Printed Circuit Board Connector Wiring Diagram 3D090604 209 Wiring Diagrams FFQ09 12 15 18LVJU PRINTED CIRCUIT BOARD H1P CAPACITOR M1F FUSE 250V PILOT LAMP PILOT LAMP ON RED PILOT LAMP TIMER GREEN SERVICE MONITOR GREEN MAGNETIC RELAY PILOT LAMP FILTER SIGN RED FAN MOTOR PILOT LAMP DEFROST ORANGE THERMAL PROTECTOR FOR MOTOR SELECTOR SWITCH MAIN SUB THERMISTOR AIR THERMISTOR COIL 1 SELECTOR SWITCH WIRELESS ADDRESS SET THERMISTOR COIL 2 ECTOR FOR OPTIONAL PARTS FLOAT SWITCH TRANSFORMER 208 230V 25V CONNECTOR WIRELESS REMOTE CONTROLLER V1TR TRIAC TERMINAL BLOCK CONNECTOR ADAPTOR FOR WIRING TERMINAL BLOCK SIGNAL RECEIVER CIRCUIT SIGNAL TRANSMISSION CIRCUIT X40A WIRED REMOTE CONTROLLER THERMISTOR AIR WIRED REMOTE CONTROLLER 210 CONNECTOR GROUP CONTROL ADAPTOR CONNECTOR SiUS121502E 5 CONNECTER DISCRIMINATION COLOR FOR COMPONENTS CONNECTER COLOR FOR COMPONENTS CONNECTER COLOR FOR PRINTED CIRCUIT BOARD
37. continuously pressed e Used to change the selected item Right button gt e Used to highlight the next items on the right hand side e Each screen is scrolled in the right hand direction SiUS121502E 7T Left button 4 e Used to highlight the next items on the left hand side e Each screen is scrolled in the left hand direction 8 On Off button e Press this button and system will start e Press this button again to stop the system 9 Operation lamp Green e This lamp illuminates solid during normal operation e his lamp blinks if a error occurs 10 Cancel button e Used to return to the previous screen 11 LCD with backlight e The backlight will be illuminated for approximately 30 seconds by pressing any button e f two remote controllers are used to control a single indoor unit only the controller to be accessed first will have backlight functionality Remote Controller 5105121502 Liquid Crystal Display e Two types of liquid crystal display LCD are available The standard display is set by default e Detailed display can be selected in the main menu e The displayed contents of the screen vary with the operation mode of the indoor unit model The following display will appear when the indoor unit is in automatic operation 10 Changeover controlled by the master indoor unit 9 Under centralized control 11 Setback 8 display SENTRO corii SETBACK
38. into direct contact with people During dry operation air is blown upper air outlet so that cold air does not come into direct contact with people When setting the airflow selection switch to d Regardless of the operating mode or situation air is blown from the upper air outlet B Usethis switch when you do not want air coming out of the lower air outlet e g while sleeping 38 Function and Control SiUS121502E Function of CTXS FTXS CDXS FDXS FVXS Series 1 4 Fan Speed Control for Indoor Unit Outline Automatic Fan Speed Control d Note COMFORT AIRFLOW Operation Function and Control Phase control and fan speed control contains 9 steps LLL LL SL L ML M MH H and HH The airflow rate can be automatically controlled depending on the difference between the room thermistor temperature and the target temperature In automatic fan speed control the step SL is not available R11681 R6834 H HH POWERFUL The airflow rate is automatically controlled within this range when the FAN button is set to automatic Cooling The following drawing explains the principle of fan speed control for cooling Room thermistor temperature target temperature Fan speed MH 3 5 4 F 2 5 4 5 F M 2 C 3 6 F 1 5 C 2 7 ML 1 C 1 8 F 0 5 0 9 F L R21654 upper limit is M tap in 30 minutes from the operation start lt Heati
39. set one to MAIN and the other to SUB Detail The remote controllers are factory set to MAIN so you only have to change one remote controller from MAIN to SUB Put on the power for both remote controllers Determine which one is the sub main remote controller When Checking the connection Please stand by is displayed on both remote controllers push and hold the Mode button of the sub remote controller for 4 seconds Please stand by R18973 The sub remote controller now displays Sub RC Checking the connection Note The main remote controller still Please stand by displays Main RC R18974 After a few seconds the basic screen is displayed Trial Operation and Field Settings 195 Field Settings i SiUS121502E 4 3 4 Address and MAIN SUB Setting for Wireless Remote Controller Outline Signal Receiver PCB 196 If several wireless remote controller units are used together in the same room including the case where both group control and individual remote controller control are used together be sure to set the addresses for the receiver and wireless remote controller For group control see the attached installation manual for the indoor unit If using together with a wired remote controller you have to change the MAIN SUB setting on the signal receiver PCB Set the address setting switch 552 on the signal receiver PCB according to the table below UnitNo No aN
40. the following problem may occur Valve opening Possible problem Check method position Open Cooling Reset power supply and conduct cooling operation B Flowing noise of refrigerantin the unit by unit unit which is not in operation B Water leakage at the unit which is T not in operation Check the liquid pipe temperature 6 Tem of no operation unit Operation half due to anti icing function Almost the same as the outdoor The EV is not Heating temperature defective B Flowing noise of refrigerant in the unit which is not in operation Replace the EV B The unit does not heat the room of the room R16019 Cooling Reset power supply and conduct cooling operation B The problem unit does not cool unit by unit the room B Only the problem unit is in operation the unit starts pump Check the low pressure down The low pressure of the unit becomes vacuum uM B Abnormal discharge pipe Bo The EV is not become into vacuum Heating Replace the EV B Refrigerant shortage due to of stagnation of liquid refrigerant inside the faulty indoor unit B heunit does not heat the room B Abnormal discharge pipe temperature R16020 Service Diagnosis 169 Check SiUS121502E 8 6 Four Way Valve Performance Check Check No 13 Turn off the power Then turn on the power to restart the system Four way valve coil Start heating operation Cooling Dry Defrost Not energized He
41. 2 5 E tion limit for heating FWB Longlife filter option i Air filter prefite Air filter prefilter PAM control Wipe clean flat panel PEE Compressor Oval scroll compressor Washable grille 1 2MXS18NMVJU 2MXS18NMVJU 22 977 gt gt gt gt gt gt gt gt zz zz tO aio 02 gt lt gt lt gt lt gt lt gt gt gt gt Coniorable Powersiriow bade _ ON OFF timer Wry Free after powerfaiurey Auto swing up anddown Wiring eror check unation e Auto swing right and left xs a Anti corrosion treatment of outdoor heat ES exchanger COMFORT AIRFLOW operation Flexibility Multi split split type compatible indoor Comfort Auto fan speed E unit Indoor unit quiet operation Flexible power supply correspondence ES NIGHT QUIET mode automatic High ceiling application OUTDOOR UNIT QUIET operation Changeless y 4 i 6 oe m Mo m INTELLIGENT EYE operation Quick warming function Powerselection Hotstatfundin _______ _ F C changeover R C temperature Operation Automatic operation Remote S room centralized
42. 5 seconds to change the unit of temperature display ARC466A21 R14477 Press the upper side of the Temp button and the On button at the same time for 5 seconds 10 change the unit of temperature display 188 On Off D 2C D Weekly Back z Next Off Select On R22009 Trial Operation and Field Settings SiUS121502E Field Settings 4 2 3 When 2 Units are Installed in 1 Room Outline When 2 indoor units are installed in 1 room 1 of the 2 indoor units and the corresponding wireless remote controller can be set for different address Both the indoor unit PCB and the wireless remote controller need alteration The method of address setting varies depending on the type of indoor unit and the series of wired remote controller Refer to the following pages for the appropriate indoor unit and wireless remote controller CTXS FTXS Series 1 Remove the front grille 2 Remove the electrical box 3 Remove the shield plate of the electrical box 4 Cut the address setting jumper JA on the PCB CTXSO7LVJU FTXS09 12LVJU FTXS15 18LVJU OL R9665 Caution Replace the PCB if you accidentally cut a wrong jumper Jumpers are necessary for electronic circuit Improper operation may occur if you cut any of them CDXS FDXS B Cut the jumper JA on PCB Series 0 c
43. 7 gn Lm 2 e y C17 CN1 X1n 5 seen X1A X2A 3P156326 3 Connector for signal receiver PCB Forced cooling operation ON OFF button LED for operation red LED for timer green LED for filter cleaning sign red LED for defrost operation orange LED2 vA 3P086209 1 LED5 and 6 do not function Printed Circuit Board Connector Wiring Diagram 29 Outdoor Unit 4 Outdoor Unit Main PCB PCB1 1 8 2 515 520 521 522 523 white 7 S40 0 red blue yellow OL 570 11 592 12 593 13 5201 5202 14 HL1 HN1 15 E1 E2 16 U V W 17 FU1 FU2 18 FU3 19 V2 V3 V401 30 SiUS121502E Connector for terminal board indoor outdoor transmission Connector for COOL HEAT mode lock Refer to page 186 for detail Connector for electronic expansion valve coil A port Connector for electronic expansion valve coil B port Connector for electronic expansion valve coil C port 24 36 class Connector for electronic expansion valve coil D port 36 class Connector for overload protector Connector for DC fan motor Connector for four way valve coil Connector for thermistors outdoor temperature outdoor heat exchanger discharge pipe Connector for gas pipe thermistor Connector for liquid pipe thermistor Connector for service monitor PCB Connector for terminal board po
44. Control Part 4 Function and Control 1 Function of CTXS FTXS CDXS FDXS FVXS Series 34 lel Temperature CODhlfol iced xe xe esee actui at mores 34 t2 34 1 3 Airflow Direction Control CTXS FTXS FVXS 36 1 4 Fan Speed Control for Indoor 39 1 5 Program Dry sax Caters 40 1 6 JAutorriatic ODGOFallOLi ec xad ics an eque 41 1 7 Thermostat Gontrol iu oo ooa etude pe eau ad 42 NOS bar eRe 43 9 ECONO Opel ation 43 1 10 INTELLIGENT EYE Operation CTXS FTXS 44 1 11 Inverter POWERFUL Operation 45 totu 46 1 13 WEEKLY Operation CTXS FTXS FVXS series 47 53 2 FUNCIONO FFO OENES edere 54 23 BramsP mp arse ttm bata terat 54 2 2 Thermostat Sensor in Remote 2222 56 2 3 Freeze Prevention nennen nnns 58 2 4 Hot Start Control In Heating
45. Control Specification Parameters Initial Frequency PI Control 64 SiUS121502E Q value Indoor unit output determined from indoor unit volume airflow rate and other factors S value Indoor Unit Capacity An S value is the capacity of the indoor unit and is used for frequency command ex Capacity Capacity lt AD signal Indoor frequency command gt The difference between the room thermistor temperature and the target temperature is recognized as the AD signal and is used for frequency command Temperature AD Temperature AD Temperature AD Temperature AD difference signal difference signal difference signal difference signal 2 0 C 3 6 F 0 C 0 F 2 0 C 3 6 F 8 4 0 C 7 2 F 1 0 C 1 8 F 1 0 1 87 6 3 0 C 5 4 F 5 0 C 9 F 0 5 0 9 1 5 2 7 F 7 35 C 63 F B 5 5 C 9 9 F Values depend on the type of indoor unit OFF Thermostat OFF 1 5 C 2 7 0 5 C 0 9 F 2 5 4 5 F 9 4 5 C 8 1 F D F When starting the compressor or when conditions are varied due to a change of operating rooms the frequency must be initialized according to a total of the maximum AD value of each room and a total value of the operating room the room in which the thermostat is set to ON 1 P control The XAD value is calculated in each sampling time 20 seconds and the frequency is adjusted according to its difference fr
46. Controller Outline Temperature is controlled by both the thermostat sensor in remote controller and air suction thermostat in the indoor unit This is however limited to when the field setting for the thermostat sensor in remote controller is set to Use Cooling If there is a significant difference in the set temperature and the suction temperature fine adjustment control is carried out using a body thermostat sensor or using the sensor in the remote controller near the position of the user when the suction temperature is near the set temperature C 89 6 32 86 0 30 82 4 28 78 8 26 EE Set temperature Ts 71 6 22 68 0 20 64 4 18 60 8 16 12 14 16 18 20 22 24 26 28 30 32 34 C 53 6 57 2 60 8 64 4 68 0 71 6 75 2 78 8 82 4 86 0 89 6 93 2 F Suction temperature TH1 Range in which body Differential thermostat sensor can be used R18811 B Assuming the set temperature in the figure above is 24 C 75 2 F and the suction temperature has changed from 18 C 64 4 F to 30 C 86 F A F This example also assumes there are several other air conditioners and the suction temperature changes even when the thermostat sensor is off 18 23 64 4 73 4 F gt thermostat sensor is used 23 27 C 73 4 80 6 F C gt E Remote controller thermostat sensor is used 27 30 C 80 6 86 F E Body thermostat sen
47. Cover QUIET button OUTDOOR UNIT QUIET operation OUTDOOR UNIT QUIET operation is not available in FAN and DRY operation e OUTDOOR UNIT QUIET operation and POWERFUL operation cannot be used at the same time Priority is given to the function you pressed last OFF TIMER button Press this button and adjust the day and time with the SELECT button Press this button again to complete TIMER setting TIMER CANCEL button Cancels the timer setting Cannot be used for the WEEKLY TIMER operation Reference MODE button Selects the operation mode AUTO DRY COOL Quiet Weekly eS Back e 9 Off Cancel SELECT button t changes the ON OFF TIMER and WEEKLY TIMER settings Refer to the following pages for detail ECONO operation Auto swing SiUS121502E HEAT FAN SWING button Adjusts the airflow direction When you press the SWING button the flap moves up and down The flap stops when you press the SWING button again WEEKLY button Weekly ____ WEEKLY button _ PROGRAM button Copy COPY button Back C BACK button Next i 7 NEXT button e WEEKLY TIMER operation ON TIMER button Press this button and adjust the day and time with the SELECT button Press this button again to complete TIMER setting CLOCK button R21929 WEEKLY TIMER operation d Note Refer to the operation manual of applicable mo
48. Indoor Unit and Outdoor Unit 24 5 8 7 5 between Indoor Units 3D093259 combination of CTXS FTXS series indoor units Conversion Formulae kcal h kW x 860 Btu h kW x 3412 cfm m3 min x 35 3 Indoor 80 FDB 26 7 CDB 67 FWB 19 4 CWB Outdoor 95 FDB 35 CDB 75 FWB 24 CWB Indoor 70 FDB 21 CDB 60 F WB 15 6 CWB Outdoor 47 FDB 8 3 CDB 43 F WB 6 CWB 25 ft 7 5 m 15 Outdoor Unit SEER HSPF Casing Color Compressor 2 Lbs kg Airflow Rate Starting Current Dimension H x W x D Packaged Dimension H x W x D Weight Mass Gross Weight Gross Mass Sound Pressure Level L m 3 min Q 3 Type Motor Output Running Current Power Consumption 5 2 3 3 3 in L o r o o Q W 25 gt Piping Connections Heat Insulation No of Wiring Connections Max Interunit Piping Length Amount of Additional Charge of Refrigerant Max Installation Height Difference Drawing No Notes 1 Max for the Min for the combination of CDXS FDXS series indoor units 2 data are based on the conditions shown in the table below Heating Piping Length 16 SiUS121502E 60 Hz 208 230 V 4MXS36NMVJU 2855 00 35 45 Z a O 140 177 Hermetically Sealed Swing Type 2YC63AAXD 1 920 FVC50K 29 8 0 85 R 41
49. ON OFF button LED for operation green LED for timer yellow LED for INTELLIGENT EYE green Hoom temperature thermistor LED3 LED2 LED1 CGRN Z amp c5 LED3 LEO2 LEDI Q m 3 224121 1 Connector for control PCB 536 3 227885 1 1 Note The symbols in parenthesis are the names on appropriate wiring diagram Printed Circuit Board Connector Wiring Diagram 21 Indoor Unit SiUS121502E 1 3 FDXS09 12LVJU CDX S15 18 24LVJU Control PCB A1P QE e Ic Co 2 S1 57 S21 S26 S32 H1 H2 H3 FG GND JA JB 10 JC 11 LED A 12 FU1 F1U 13 V1 V1TR Caution 521 15303 JP41 20404 70402 4 A DC vie Xi yc Connector for AC fan motor Connector for AC fan motor Hall IC Connector for centralized control HA Connector for display PCB Connector for indoor heat exchanger thermistor Connector for terminal board Connector for terminal board ground Address setting jumper Refer to page 189 for detail Fan speed setting when compressor stops for thermostat OFF Refer to page 191 for detail Power failure recovery function auto restart Refer to page 191 for detail LED for service monitor green Fuse 3 15 A 250 V Varistor 5 n 8 1505 ay 3 7 E 1 57 27 ADDRESS JA ies on 87 RS
50. Operation 59 3 CORIO 210 60 9 gt sss eae ves E De a 60 220 Mode OE 62 222 Er queney uni aae que End 63 3 4 Controls at Mode Changing 65 3 5 Discharge Pipe Temperature 66 3 68 Input CONTON res tinta 67 3 7 Freeze up Protection 68 3 8 Heating Peak cut Control successus ett oe eee elucet 68 3 9 Outdoor Fan NER T TT TT 69 3 10 Liquid Compression Protection 0 69 70 3 12 LOW H2 AHigh FPEeSSUFe DITTHLU 71 3 13 Electronic Expansion Valve 72 Malturelofis 77 33 Function of CTXS FTXS CDXS FDXS FVXS Series SiUS121502E 1 Function of CTXS FTXS CDXS FDXS FVXS Series 1 1 Temperature Control Definitions of The definitions of temperatures are classified as following Temperatures Room temperature temperature of lower part of the room Set temperature temperature set by remote controller Room thermistor temperature temperature detected
51. PILOT LAMP R1T R6T R9T R11T THERMISTOR SW6 NIGHT QUIET MODE SETTING SW SW6 U V W CONNECTOR M1C COMPRESSOR MOTOR SA1 SURGE ARRESTER V2 V401 VARISTOR X11A CONNECTOR 3D092460 M1F FAN MOTOR SHEET METAL TERMINAL STRIP FIXED PLATE X1M X4M TERMINAL STRIP Note PCB1 Main PCB PCB2 Service monitor PCB Refer to Part 3 for Printed Circuit Board Connector Wiring Diagram 212 Appendix SiUS121502E 4MXS36NMVJU Wiring Diagrams ee a 1 POWER SUPPLY Sw 6 546 ME d Te BRN 1 ma ea L2 52 0 1 M1F Z1C CNA IN CASE OF ma TO INDOOR UNIT N 3 HEAT PUMP TYPE gt ROOMB T Sc 1 5 Z5CN 2 5 5 6 bs ems 3 7 PCB1 Ei E26 ie Zac 2 B 2583 3 TO INDOOR UNIT 1 SA1 URP a PN 0009 000000 1 FU3 1 7 4321 2 30A V2 1 580 570 5 3 4 V3 t 4 TO INDOOR UNIT ROOMC 1 Et slm t DB1 3 15A 2 i ae 1 00 Dm 3 3 15A V401 CPS 4 hoe C110 TO INDOOR UNIT z ROOM D i S E ORG s ZAC IPM1 3 7 Tis RED YLW
52. Radiation fin dirty YES 162 Check the radiation fin YES Be sure to turn off the power switch before connecting or disconnecting To cool the electrical components the outdoor fan starts when the radiation fin temperature rises above C The outdoor fan stops when the radiation fin temperature drops below B the outdoor unit PCB main PCB Replace the outdoor fan motor Correct the connectors and fan motor lead wire the outdoor unit PCB main PCB Check the installation condition Go to Check No 17 Clean up the radiation fin R22272 Service Diagnosis SiUS121502E Troubleshooting for Outdoor Unit 7 19 Radiation Fin Temperature Rise Error Code L Outdoor Unit LED 1 20 30 405 50 Display Method of Error A radiation fin temperature rise is detected by checking the radiation fin temperature with the Detection compressor on Error Decision B The radiation fin temperature with the compressor is above A Conditions B The error is cleared when the temperature drops below B 90 C 194 F 85 C 185 F error repeats the system is shut down B Reset condition Continuous run for about 60 minutes without any other error Supposed Defective outdoor fan motor Causes B Short circuit B Defective radiation fin thermistor B Disconnection of connector Defective outdoor unit PCB B Silicon grease is not applied properly on the radiation
53. Silicon Grease on Power Transistor Diode Bridge 199 Trial Operation and Field Settings 177 Pump Down Operation SiUS121502E 1 Pump Down Operation Pump Down In order to protect the environment be sure to conduct pump down operation when relocating or Operation disposing the unit 1 Remove the valve caps from the liquid stop valve and the gas stop valve 2 Carry out forced cooling operation 3 After 5 10 minutes close the liquid stop valve with a hexagonal wrench 4 After 2 3 minutes close the gas stop valve and stop the forced cooling operation Close Gas stop valve Hexagonal wrench E eu S Liquid stop valve SO i Valve caps R14566 Forced cooling operation Procedure Turn the power off Remove the switch cover Turn off all the switches of SW5 and SW6 on the service monitor PCB Set the operation mode switch SW2 to COOL Screw the switch cover again Turn the power on Wait until the 3 minute standby mode finishes Press the forced cooling operation ON OFF switch SW1 Command frequency 18 class 52 Hz 24 36 class 30 Hz Ending conditions 1 Press the forced cooling operation ON OFF switch SW1 again 2 The operation ends automatically after 11 15 minutes depending on model eTurn off all the switches of SW5 and SW6 ON OFF 01 Service monitor PCB SW6 gt Nos m N
54. Specifications 5105121502 SEER HSPF Casing Color Compressor 2 Lbs kg Airflow Rate Starting Current Dimension H x W x D Packaged Dimension H x W x D Weight Mass Gross Weight Gross Mass Sound Pressure Level L Type Motor Output Running Current Power Consumption lt gt gt 2 3 5 3 3 in L o r o o gt gt 3 3 Piping Connections 3 5 3 3 Heat Insulation No of Wiring Connections Max Interunit Piping Length Amount of Additional Charge of Refrigerant Max Installation Height Difference Drawing No Notes 1 Max for the Min for the combination of CDXS FDXS series indoor units 2 data are based on the conditions shown in the table below Heating Piping Length Specifications Outdoor Unit 60 Hz 208 230 V 3MXS24NMVJU 9 7 14 0 127 2175 White Hermetically Sealed Swing Type 2YC63AAXD 1 920 FVC50K 29 8 0 85 R 410A 6 17 2 8 Propeller 51 O0 A 0 28 M 0 28 L 0 26 H 0 28 M 0 26 L 0 05 154 70 52 54 1 4 x 3 06 4 x 3 3 8 x 1 6 1 2 x 2 09 5 x 1 12 7 x 2 11 16 17 5 Both Liquid and Gas Pipes 3 for Power Supply 4 for Interunit Wiring 230 70 for Total of Each Room 82 25 for One Room 0 21 20 131 5 8 ft 40 m or more 49 1 4 15 between
55. Troubleshooting Be sure to turn off the power switch before connecting disconnecting Caution connectors or parts may be damaged Turn on the power NO Check if the outdoor unit is grounded YES the outdoor unit PCB main PCB Ground the system The cause can be external factors other than malfunction Investigate the cause of noise R21809 144 Service Diagnosis SiUS121502E Troubleshooting for Outdoor Unit 7 OL Activation Compressor Overload Error Code Outdoor Unit LED 1 20 30 40 50 Display Method of Error A compressor overload is detected through compressor OL Detection Error Decision Ifthe error repeats the system is shut down Conditions B Reset condition Continuous run for about 60 minutes without any other error Supposed Disconnection of discharge pipe thermistor Causes B Defective discharge pipe thermistor B Disconnection of connector 540 B Disconnection of 2 terminals of OL B Defective OL Q1L Broken OL harness B Defective electronic expansion valve or coil Defective four way valve or coil B Defective outdoor unit PCB Refrigerant shortage B Water mixed in refrigerant B Defective stop valve Service Diagnosis 145 Troubleshooting for Outdoor Unit Troubleshooting SiUS121502E Be sure to turn off the power switch before connecting or disconnecting Check No 01 Caution connectors or parts may be da
56. and disconnect the harnesses U V and W Not a malfunction Keep observing Check the connectors and other components voltage Compressor overload Short circuit Check No 15 Inverter analyzer Check with the inverter analyzer RSUK0917C Correct the power supply or replace the outdoor unit PCB main PCB NO Check No 22 Check the power module Replace the outdoor unit PCB main PCB Turn off the power and reconnect the harnesses Turn on the power again and start operation Check the power supply voltage NO Voltage as rated Correct the power supply YES Short circuit or NO wire breakage between compressor s coil phases Check the discharge pressure Go to Check No 18 YES Replace the compressor R21438 165 Check SiUS121502E 8 Check 8 1 Thermistor Resistance Check Check No 01 Disconnect the connectors of the thermistors from the PCB and measure the resistance of each thermistor using multimeter The data is for reference purpose only Resistance R25 C 77 F 20 3950 5 32 59 86 113 F 814467 Multimeter temperature thermistor Resistance range Multimeter R19752 When the room temperature thermistor is soldered on a PCB remove the PCB from the control PCB to measure the resistance When the connector of indoor heat exchanger thermistor is soldered on a PCB rem
57. bottom of the screen Error Push Menu button R18971 The operation lamp green Coo Cat The system remains on The message Warning continues its Warning Push Menu button e 68 operation blinks at the bottom of the m F screen Warning Push Menu button 3 R18972 2 Take corrective action Press the Menu OK button to check the error code Take the corrective action specific to the model Error Code gt Error code Contact Info 0123 456 7890 Indoor Mode 0 ut d oor M ao d Applicable model names R18820 Service Diagnosis 109 Service Diagnosis SiUS121502E 3 2 2 BRC7E830 Relations The following modes can be selected by using the INSPECTION TEST button on the remote Between Modes controller Press the INSPECTION TEST button for more than 4 seconds Service data can be obtained Error code history data of various sections Indoor unit settings can be made e Filter cleaning sign time Others Field setting mode Service mode Service settings can be made Forced fan ON Airflow rate setting Press the INSPECTION TEST Press the INSPECTION TEST button once button for more than 4 seconds Normal mode Press the INSPECTION TEST button once or leave the remote controller untouched for 30 minutes Press the INSPECTION TEST button once After 10 seconds F
58. button DOWN 69 FAN RESERVE CANCEL RESERVE button First code No j TIMER we TUI CO MODE MODE button Second code No INSPECTION TEST button R18955 To set the field settings you have to change Mode First code No Second code No Step Action Press the INSPECTION TEST button for 4 seconds during normal mode to enter the field setting mode 2 Press the MODE button to select the desired mode No 3 UP button o select thefirstcodeNo _ Press the DOWN button to select the second code No _ 8 Press the RESERVE button to confirm tne seting SSS 6 jPressiheINSPECTIONTESTbutonioreumiothenommalmode _ Trial Operation and Field Settings 193 Field Settings 4 3 2 Overview of the Field Settings Description of setting SiUS121502E Second Code No 01 02 03 Ultra longlife Filter cleaning filter Approx 10 000 hrs sign interval Longlife filter Approx 2 500 hrs Approx 5 000 hrs Approx 1 250 hrs Longlife filter type Longlife filter Ultra longlife filter Remote controller thermistor Enabled Disabled Filter cleaning sign Display No display Indoor unit number of simultaneous operation system Pair Twin Simultaneous operation system individual setting Unified setting Individual se
59. by room temperature thermistor Target temperature temperature determined by microcomputer Target temperature Room thermistor temperature Set temperature Room temperature R12321 The illustration is for CTXS FTXS series as representative Temperature The temperature of the room is detected by the room temperature thermistor However there is Control difference between the temperature detected by room temperature thermistor and the temperature of lower part of the room depending on the type of the indoor unit or installation condition Practically the temperature control is done by the target temperature appropriately adjusted for the indoor unit and the temperature detected by room temperature thermistor 1 2 Frequency Principle Control The frequency of the compressor is controlled by the following 2 parameters Parameters B The load condition of the operating indoor unit B The difference between the room thermistor temperature and the target temperature The target frequency is adapted by additional parameters in the following cases B Frequency restrictions Initial settings B Forced cooling operation 34 Function and Control SiUS121502E Function of CTXS FTXS CDXS FDXS FVXS Series Inverter Principle regulate the capacity a frequency control is needed The inverter makes it possible to control the rotation speed of the compressor The following table explains the inverter principle The supplied AC power sour
60. cause an electrical shock excessive heat generation or fire Be sure to use an exclusive power circuit for the equipment and follow the local technical standards related to the electrical equipment the internal wiring regulations and the instruction manual for installation when conducting electrical work Insufficient power circuit capacity and improper electrical work may cause an electrical shock or fire Be sure to use the specified cable for wiring between the indoor and outdoor units Make the connections securely and route the cable properly so that there is no force pulling the cable at the connection terminals Improper connections may cause excessive heat generation or fire viii Safety Cautions When wiring between the indoor and outdoor units make sure that the terminal cover does not lift off or dismount because of the cable If the cover is not mounted properly the terminal connection section may cause an electrical shock excessive heat generation or fire Do not damage or modify the power cable Damaged or modified power cable may cause an electrical shock or fire Placing heavy items on the power cable and heating or pulling the power cable may damage the cable Do not mix air or gas other than the specified refrigerant R 32 R 410A R 22 in the refrigerant system If air enters the refrigerating system an excessively high pressure results causing equipment damage and injury If the refrigerant g
61. change the confirmed reserved settings select the reservation number and press The mode is switched to setting mode Proceed to Setting mode STEP 4 3 Press exit the confirmation mode is displayed the LCD and WEEKLY TIMER operation is activated The TIMER lamp lights orange ol l ON OFF Display To deactivate WEEKLY TIMER operation Press while is displayed on the LCD disappears from the LCD The TIMER lamp goes off To reactivate the WEEKLY TIMER operation press f a reservation deactivated with C is activated once again the last reservation mode will be used Weekly If not all the reservation settings are reflected deactivate the WEEKLY TIMER operation once Then press ____j again to reactivate the WEEKY TIMER operation Function and Control 51 Function of CTXS FTXS CDXS FDXS FVXS Series SiUS121502E delete reservations An individual reservation 1 Press The day of the week and the reservation number will be displayed TUE UVF 2 Press select the day of the week and the reservation number to be deleted 3 Next Press and ON OFF blink 4 Press until no icon is displayed Pressing the ON OFF TIMER mode in sequence Selecting blank will cancel any reservation you may have
62. controler option gram dry function Remote control adaptor Program dryfuncion Fanoly normal open pulse contact option Hemote control adaptor Lifestyle nee POWERFUL operation Convenience non inverter normal open contact option Inverter Inverter POWERFUL operation Inverter POWERFUL operation compatible adaptor option EE HOME operation ECONO operation _ indoor unt ONOFFbuton Signal eceivingsign y Sd FTemperaturedisplay Note Available Not available 6 List of Functions SiUS121502E Part 2 Specifications 1 Indoor Unit 2 a a 14 Specifications 7 Indoor Unit SiUS121502E 1 Indoor Unit 60 Hz 208 230 V 2 Rated Capacity 7 kBtu h Class Front Panel Color Airflow Rate mum SL Cross FlowFan Fan 23 5 Steps Quiet Auto Air Direction Contro Air File W Power Factor Rated Temperature Contro n Lbs kg Lbs k rend dB A 38 32 25 22 38 33 28 25 SomdPowrled 3 dB 8 ions Drawing No Cooig Rated Capacity Front Panel Color M min Fan Air Direction Contro Air File Temperature Contro round
63. diagnosis mode R14550 The left side number blinks R9430 2 Press the TEMP A or TEMP button and change the number until you hear the two consecutive beeps or the long beep ON OFF R14551 3 Diagnose by the sound beep The left side number does not correspond with the error code two consecutive beeps The left side number corresponds with the error code but the right side number does not long beep Both the left side and right side number correspond with the error code The numbers indicated when you hear the long beep are the error code Refer to page 114 115 4 Press the MODE button ON OFF _ J 814552 The right side number blinks WDAIKIN R9429 Service Diagnosis 103 Service Diagnosis SiUS121502E Press the TEMP A or TEMP V button and change the number until you hear the long beep ON OFF move CJC JC J R14547 Diagnose by the sound beep The left side number does not correspond with the error code two consecutive beeps The left side number corresponds with the error code but the right side number does not long beep Both the left side and right side number corresponds with the error code Determine the error code The numbers indicated when you hear the long beep are the error code Refer to page 114 115
64. fan speed that is set for the indoor unit e The fan speed will not be displayed if the connected model does not have fan speed control functionality 3 Setpoint display e Used to display the setpoint for the indoor unit e Use the Celsius Fahrenheit item in the main menu to select the temperature unit Celsius or Fahrenheit 4 Stand by for Defrost Hot start T ISTANDBY If ventilation icon is displayed in this field e Indicates that an energy recovery ventilator is connected For details refer to the Operation Manual of the ERV 5 Message The following messages may be displayed This function is not available e Displayed for a few seconds when an operation button is pressed and the indoor unit does not provide the corresponding function e In a remote control group the message will not appear if at least one of the indoor units provides the corresponding function SiUS121502E Error Push Menu button Warning Push Menu button e Displayed if an error or warning is detected Time to clean filter Time to clean element Time to clean filter amp element e Displayed as a reminder when it is time to clean the filter or element 6 Ventilation e Displayed when a energy recovery ventilator is connected e Ventilation Mode icon ERV BYPASS These icons indicate the current ventilation mode ERV only AUTO ERV BYPASS e Air Purify ICON This ico
65. in open phase starts OFF Condition When the outdoor temperature is higher than 22 C 71 6 F the inverter operation in open phase stops 3 4 2 Four Way Valve Switching Outline The four way valve coil is energized not energized depending on the operation Heating ON Cooling Dry Defrost OFF In order to eliminate the switching sound as the four way valve coil switches from ON to OFF when the heating is stopped the OFF delay switch of the four way valve is carried out Detail OFF delay switch of four way valve The four way valve coil is energized for 150 seconds after the operation is stopped 3 4 3 Four Way Valve Operation Compensation Outline At the beginning of the operation as the four way valve is switched the pressure difference to activate the four way valve is acquired when the output frequency is higher than a certain fixed frequency for a certain fixed time Detail Starting Conditions 1 When the compressor starts and the four way valve switches from OFF to ON 2 When the four way valve switches from ON to OFF during operation 3 When the compressor starts after resetting 4 When the compressor starts after the fault of four way valve switching The lower limit of frequency keeps A Hz for 70 seconds with any conditions 1 through 4 above 3 4 4 3 Minute Standby Turning on the compressor is prohibited for 3 minutes after turning off The function is not used when defrosting Function and Cont
66. inside the unit may spill and wet the furniture and floor Be sure to install the packing and seal on the installation frame properly For unitary type If the packing and seal are not installed properly water may enter the room and only wet the furniture and floor Used Icons SiUS121502E 2 Used Icons The following icons are used to attract the attention of the reader to specific information Icon Type of Description Information Warning A Warning is used when there is danger of personal injury Warning Caution A Caution is used when there is danger that the reader through incorrect manipulation may damage equipment lose data get an unexpected result or has to restart part of a procedure Note A Note provides information that is not indispensable but may 1 nevertheless be valuable to the reader such as tips and tricks Note Reference Reference guides the reader to other places in this binder or in this manual where he she will find additional information on a specific topic 5 e Xi SiUS121502E Part 1 List of Functions ils UOTIS oco eu nn cr Oe Re 2 List of Functions 1 Functions SiUS121502E Category Functions O O Basic Inverter with inverter power control Health 4 Air purifying filter ex dme Operation limit for cooling clean Photocatalytic deodorizing filter
67. of the compressor harness Defective compressor Defective outdoor unit PCB Start up failure caused by the closed stop valve Input voltage is outside the specified range Service Diagnosis SiUS121502E Troubleshooting Check No 15 Refer to P 171 Check No 18 Refer to P 173 Check No 20 Refer to P 174 Service Diagnosis Troubleshooting for Outdoor Unit Be sure to turn off power switch before connecting disconnecting Caution connectors or parts may be damaged Turn off the power Check the power supply voltage Voltage as rated YES Check No 18 Check the discharge pressure Correct the power supply Replace the stop valve Check No 20 Check the short circuit of the diode bridge the outdoor unit PCB main PCB YES Check the connection Electrical components or compressor harnesses connected as specified NO Heconnect the electrical components or compressor harnesses as specified YES Turn on the power Check the electrolytic capacitor voltage NO Within 320 50 VDC Replace the outdoor unit PCB main PCB YES Turn off the power Disconnect the harnesses U V and W Inverter analyzer RSUK0917C Check No 15 Check with the inverter analyzer Replace the compressor YES Correct the power supply or replace the outdoor unit PCB main PCB R22270 157 Troubleshooting for Outdoor Unit 5105121502
68. restart after power failure Reliability 4 3 D airflow Durability Self diagnosis R C LED COMFORT AIRFLOW operation omm md Wiring error check function Comfort Auto fan speed e Anti corrosion treatment of outdoor heat exchanger Control Indoor unit quiet operation NIGHT QUIET mode automatic Flexibility Multi split split type compatible indoor pe fa unit OUTDOOR UNIT QUIET operation INTELLIGENT EYE operation High ceiling application Quick warming function Chargeless ESAE Program dry function e display factory setting F Lifestyle New POWERFUL operation Hemote control adaptor Convenience normal open pulse contact option EMEN toning setting normal open contact option COOL HEATmodelock DIII NET T adaptor option indoor unt ONOFFRen ele Signalrecevingsin ric withbackignt __ Note Available Not available List of Functions 3 Functions SiUS121502E i i Basic Inverter with inverter power control Health 4 Air purifying filter Operation limit for cooling cigan Photocatalytic deodorizing filter EE tor cooling 708 Air purifying filter with photocatalytic Operati
69. setting switch SS2 g 935 y 936 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 551 on the signal receiver to SUB umn SUB MAIN SUB setting switch SS1 S After completing setting seal off the opening of the address setting switch 552 and the MAIN SUB setting switch 551 with the attached sealing pad Trial Operation and Field Settings 5105121502 Field Settings Wireless Remote 1 Hold down the FILTER SIGN RESET button and the INSPECTION TEST button at the Controller same time for at least 4 seconds to enter the field setting mode SETTING is indicated on the Factory Set is 1 display 2 Press the FAN button and select A or b Each time the button is pressed the display switches between A and b 3 Press the UP button and the DOWN button to set the address 1 2 3 4 5 6 Address can be from 1 6 but set it to 1 and to same address as the receiver The receiver does not work with address 4 6 4 Press the RESERVE button to confirm the setting 5 Hold down the INSPECTION TEST button for at least 1 second to exit the field setting mode and return to the normal display 3 Field setting mode 2 RESERVE CANCEL Address 4 MODE Multiple setting SWING R14401 Multiple Settings Wh
70. settings are used for the weekend Monday Tuesday to Friday Make timer settings for programs 1 4 program 1 program 2 program 3 program 4 0 8 30 6 0 17 30 22 00 Use the copy mode to make settings for Tuesday to Friday because these settings are the same as those for Monday program 1 program 2 program 3 program 4 a 8 30 6 00 17 30 22 00 Saturday No timer settings Sunday Make timer settings for programs 1 4 program 1 program 2 program 3 program 4 ON ON OFF OFF 8 00 10 00 19 00 21 00 Up to 4 reservations per day and 28 reservations per week can be set using the WEEKLY TIMER The effective use of the copy mode simplifies timer programming The use of ON ON ON ON settings for example makes it possible to schedule operating mode and set temperature changes Furthermore by using OFF OFF OFF OFF settings only the turn off time of each day can be set This will turn off the air conditioner automatically if you forget to turn it off Function and Control 47 48 Function of CTXS FTXS CDXS FDXS FVXS Series 5105121502 To use WEEKLY TIMER operation Make sure the day of the week and time are set If not set the day of the week and time program 1 program 2 p dn 3 program 4 Monday 22 25 81 F 27 C gt 6 00 8 30 17 30 22 00 JON MON Day and number ON OFF i Tempe
71. the rated value NO Correct the power supply YES Check the connection of the compressor harness Loose or YES dieconnecied Reconnect the harness NO Does the outdoor fan rotate smoothly NO Replace the outdoor fan motor and the outdoor unit PCB main PCB YES Precaution before turning on the power again Make sure the power has been off for at least 30 seconds Turn on the power System restarted Repeat a few times YES Disturbance factors Noise mM Check for such factors for a Power supply distortion long term NO Error again within 3 minutes after turning on the power NO Replace the outdoor unit PCB main PCB YES Replace the indoor unit PCB control PCB R20413 139 Troubleshooting for Outdoor Unit 5105121502 7 3 Wiring Error Check Unexecuted m t0 Error Code LI Outdoor Unit LED 1 2 30 40 59 Display Method of Error The system checks if wiring error check is executed after clearing the memory Detection Error Decision An error is determined when the unit is operated by the remote controller without executing wiring Conditions error check after the memory was cleared Supposed The wiring error switch SW3 may have been pressed for 10 seconds or more and the memory Causes may have been deleted The unit cannot be operated unless wiring error check is executed Troubleshooting Be sure
72. the jumpers other than JA JB and JC Jumpers are necessary for electronic circuit Improper operation may occur if you cut any of them d Note 18 The symbols in the parenthesis are the names on the appropriate wiring diagram Printed Circuit Board Connector Wiring Diagram 5105121502 Signal Receiver PCB PCB2 Display PCB PCB3 INTELLIGENT EYE Sensor PCB PCB4 1 S48 1 S49 2 3 LED1 H1P 4 LED2 H2P 5 LEDS H3P 6 RTH1 R1T 1 S26 Indoor Unit Connector for control PCB 3P210728 1 Connector for control PCB Forced cooling operation ON OFF button LED for operation green LED for timer yellow LED for INTELLIGENT EYE green Hoom temperature thermistor HTH1 Sw 3P210728 1 LED3 1 02 dn ce LEDS LED LEDI 549 3P210728 1 Connector for control PCB 3EB86013 1 d Note The symbols in the parenthesis are the names on the appropriate wiring diagram Printed Circuit Board Connector Wiring Diagram 19 Indoor Unit SiUS121502E 1 2 FTXS15 18 24LVJU Control PCB PCB1 O 51 521 525 532 541 546 547 Co H1 H2 H3 FG JA gt gt ua ae lt lt co 10 JB 11 JC 12 LED A 13 FU1 F1U FU2 14 V1 Connector for DC fan motor Connector for centralized control HA Connector for INTELLIGENT EYE sensor PCB Indoor heat exchanger thermistor
73. the outdoor fan fan motor blown motor YES YES Replace the fuse Replace the outdoor unit PCB main PCB FU2 R21669 148 Service Diagnosis SiUS121502E Troubleshooting for Outdoor Unit 7 10 Input Overcurrent Detection gt gt gt Error Code Outdoor Unit LED 10 21 4 50 Display Method of Error Detected by checking the input current value Detection Error Decision The input current is at a certain value depending on the condition for 2 5 seconds Conditions B The compressor halts if the error occurs and restarts automatically after 3 minute standby Supposed Outdoor temperature is out of operation range Causes B Defective compressor B Defective power module Defective outdoor unit PCB Short circuit Troubleshooting Be sure to turn off the power switch before connecting or disconnecting 6 Caution connectors or parts may be damaged Check No 15 An input overcurrent may result from wrong internal wiring If the system is interrupted by an input overcurrent after the wires have been disconnected and reconnected for part replacement check the Refer to P 171 wiring again Check No 17 Check No 17 Check the installation condition Refer to P 173 Start operation and measure the input current Check No 18 Refer to P 173 Input current flowing NO above its stop level Replace the outdoor unit PCB main PCB YES Turn off the power and disconnect the harnesses
74. the specifications Is the water drain system normal Clogged water drain system clogged drain pump or faulty float switch the indoor unit PCB Check if the drain up height and the horizontal pipe length exceed the specifications R16022 130 Service Diagnosis SiUS121502E Troubleshooting for FFQ Series 6 5 Thermistor or Related Abnormality Error Code L L5 L5 Method of Error The temperatures detected by the thermistors determine thermistor errors Detection Error Decision The voltage between the both ends of the thermistor is 4 96 V and more or 0 04 V and less during Conditions compressor operation Supposed B Disconnection of connector Causes B Thermistor corresponding to the error code is defective B Defective indoor unit PCB Troubleshooting If the cause of the problem is related to the thermistors the thermistors should be checked prior to changing the indoor unit PCB Check No 01 check the thermistors proceed as follows Refer to P 166 1 Disconnect the thermistor from the indoor unit PCB Read the temperature and the resistance value 1 3 Check if the measured values correspond with the values in the table of thermistor resistance check Be sure to turn off the power switch before connecting disconnecting Caution connectors or parts may be damaged Check the connection of connectors Correct the connection Check No 01 Che
75. to turn off the power switch before connecting or disconnecting Caution gt connectors or parts may be damaged Wiring error check n t wiring error check executed Conduc g error chec Refer to P 179 for detail Wiring error check may not have been finished because of the trouble of indoor outdoor unit Conduct wiring error check again R22429 140 Service Diagnosis SiUS121502E Troubleshooting for Outdoor Unit 7 4 Unspecified Voltage Between Indoor Unit and Outdoor Unit Anti icing Control in Other Rooms 1 Outdoor Unit LED 10 20 30 40 50 Display Method of Error A wrong connection is detected by checking the combination of indoor and outdoor units on the Detection microcomputer Error Decision Anti icing control in other rooms Conditions B Unspecified internal and or external voltages B Mismatching of indoor and outdoor units Supposed Anti icing function in other rooms Causes B Power supply voltage is not as specified B Wrong models interconnected Wrong indoor unit PCB or outdoor unit PCB mounted Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Error displayed while The anti icing function is operating activated in other rooms Refer to 55 Power supply voltage as specified Check the model combination Matched compatibly Correct t
76. 0 1 TUE TUE 600 7 15 30 po po 1 54 Confirmation Normal 1 Press 2 Press to confirm the day of the week to be copied Copy 3 Press __ The whole reservation of the selected day of the week will be copied 4 Press to select the destination day of the week Copy 5 Press 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 9 Press complete the setting o is displayed on the LCD and WEEKLY TIMER operation is activated NOTE Note on COPY MODE e The entire reservation of the source day of the week is copied in the copy mode In the case of making a reservation change for any day of the week individually after copying the content of weekly reservations press and change the settings in the steps of Setting mode 50 Function and Control SiUS121502E Function of CTXS FTXS CDXS FDXS FVXS Series Confirming a reservation e The reservation can be confirmed Setting Displays ON 5 08 Normal Confirmation 1 Press The day of the week and the reservation number of the current day will be displayed 2 Press to select the day of the week and the reservation number to be confirmed Pressing the reservation details Next To
77. 02 3 2 Mode Hierarchy Outline Air conditioner control has normal operation mode forced operation mode and power transistor test mode for installation and servicing Detail Air conditioner control mode Forced operation mode Forced cooling operation for pump down operation Forced heating operation Wiring error check operation Power transistor test mode Normal operation mode Fan Cooling includes drying Heating E Heating Defrosting Stop indoor unit OFF Preheating operation Discharging from capacitor Stop R17361 i Note Unless specified otherwise a dry operation command is regarded as cooling operation Indoor fan operation cannot be made in multiple indoor units A forced fan command is made during forced cooling operation Determine Operation Mode The system judges the operation mode command which is set by each room in accordance with the procedure and determines the operation mode of the system The following procedure is taken when the modes 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 62 Function and Control 5105121502 Control Specification 3 3 Frequency Control Outline Frequency that corresponds to each room s capacity is determined according to the difference between the target temperature an
78. 02E Open the Front Cover MODE button Selects the operation mode COOL HEAT FAN QUIET button OUTDOOR UNIT QUIET operation MODE SECON e OUTDOOR UNIT QUIET SELECT button operation is not available in Changes the ON OFF TIMER FAN and DRY operation efto settings OUTDOOR UNIT QUIET operation and POWERFUL operation cannot be used at the same time Priority is given to the function you ON TIMER button pressed last Press this button and adjust the time with the SELECT button OFF TIMER button Press this button again to Press this button and adjust complete TIMER setting the time with the SELECT button s Press this button again to CLOCK button complete TIMER setting TIMER CANCEL button Cancels the timer setting R21920 Reference Refer to the following pages for detail ECONO operation 3 Clock setting P 46 d Note Refer to the operation manual of applicable model for detail You can download operation manuals from Daikin Business Portal Daikin Business Portal Product Information Operation Installation Manual URL https global1d daikin com business_portal login 82 Remote Controller SiUS121502E FVXS Series 3 FVXS Series Signal transmitter Display LCD Displays the current settings In this illustration each section is shown with all its displays on for the purpose of explanation
79. 0A 6 17 2 8 2 351 2 210 1 119 Propeller 75 ees 157 71 1 4 x 4 6 4 x 4 3 8 x 1 1 2 x 2 0 5 8 1 9 5 x 1 12 7 x2 15 9 x 1 11 16 17 5 Both Liquid and Gas Pipes 3 for Power Supply 4 for Interunit Wiring 230 70 for Total of Each Room 82 25 for One Room 0 21 20 131 5 8 ft 40 m or more 49 1 4 15 between Indoor Unit and Outdoor Unit 24 5 8 7 5 between Indoor Units 3D093260 combination of CTXS FTXS series indoor units Conversion Formulae kcal h kW x 860 Btu h kW x 3412 cfm m3 min x 35 3 Indoor 80 FDB 26 7 CDB 67 FWB 19 4 CWB Outdoor 95 FDB 35 CDB 75 FWB 24 CWB Indoor 70 FDB 21 CDB 60 F WB 15 6 CWB Outdoor 47 FDB 8 3 CDB 43 F WB 6 CWB 25 ft 7 5 m Specifications SiUS121502E Part 3 Printed Circuit Board Connector Wiring Diagram RU 18 1 1 GEXSOZEVJU FEXSO9 iii v FRE Eo ERES 18 E2 241 V JU 20 1 3 FDXS09 12LVJU CDX S15 18 24LVJU eee 22 1 4 2 5 1218 24 129 12715 IU ioo see rette Den Eee 26 2 Wired Remote 27 A RR 27 2127 2 _ __ ____ 28
80. 20415 Service Diagnosis SiUS121502E Troubleshooting for Outdoor Unit 7 8 Compressor Lock Error Code Outdoor Unit LED Display Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting Check No 12 Refer to P 169 Check No 15 Refer to P 171 Service Diagnosis 4 e E Ad 10 25 345 40 50 A compressor lock is detected by checking the compressor running condition through the position detection circuit Judging from the current waveform generated when high frequency voltage is applied to the compressor If the error repeats the system is shut down Reset condition Continuous run for about 5 minutes without any other error Closed stop valve Defective outdoor unit PCB Defective compressor Defective electronic expansion valve Be sure to turn off power switch before connecting or disconnecting Caution connectors or parts may be damaged Precaution before turning on the power again Make sure the power has been off for at least 30 seconds YES Stop valve closed Open the stop valve y NO Turn off the power Disconnect the harnesses U V and W Check No 15 Inverter analyzer Check with the inverter analyzer 50 0917 Correct the power supply or replace the outdoor unit YES PCB main PCB Turn off the power and reconnect the harnesses Turn on the power again and restart the system Emergency YE
81. 208 230 V FDXSO9LVJU FDXS12LVJU Rated Capacity 9 kBtu h Class 12 kBtu h Class External Static Pressure inAq Pa 0 12 30 0 12 30 min O Fan Air Fifer Temperature Contro See pressum B A 35 33 31 35 33 31 35 33 31 35 33 31 Sound Power Level dB Both Liquid and Gas Pipes Both Liquid and Gas Pipes m 1 4 064 o V4 664 ED ns 03 8 0955 038 095 0 25 82 020 0 25 82 020 Drawing No 3D075493 3D075494 Cooling Heating Cooling 2 Rated Capacity 1 EMEN m min Fan Air Filter Temperature Control Packaged Dimensions H x W x D 10 1 2 x 43 9 16 x 29 9 16 266 x 1 106 x 751 10 1 2 x 43 9 16 x 29 9 16 266 x 1 106 x 751 dB A 37 35 33 31 37 35 33 31 37 35 33 31 37 35 33 31 Both Liquid and Gas Pipes Both Liquid and Gas Pipes B 91 4 96 4 1 4 6 4 AL md 1 2 12 7 1 2 01277 VP20 O D 1 1 32 26 1 0 25 32 20 VP20 O D 1 1 32 26 I D 25 32 9 20 30075721 30075722 Conversion Formulae kcal h kW x 860 Btu h 2 kW x 3412 cfm m3 min x 35 3 10 Specifications SiUS121502E Indoor Unit 60 Hz 208 230 V CDXS24LVJU Rated Capacity 24 kBtu h Class External Static Pressure inAq Pa 0 16 40 565 16 0 565 16 0 M 523 14 8 523 14 8 Airflow Rate m min 477 13 5 477 13 5 395 11 2 395 11 2 Sirocco Fan Fan 130 5 Steps Quie
82. 5 4 2 BRC1E72 73 Wired Remote Controller eene 90 4 3 lt BRC7E830 gt Wireless Remote Controller 96 Remote Controller SiUS121502E 1 CTXS FTXS Series Signal transmitter 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 not get it wet MONTUEWED THUFRI 2 The maximum distance for communication is approximately 23 ft 7 m FAN setting button Selects the airflow rate setting every time you press this button gt 4 o0 Auto Indoor unit quiet Low e eo Middle low Middle high Middle n indoor unit quiet operation operation sound becomes weak The airflow rate also decreases In DRY operation the airflow rate setting is not available Reference d Note Remote Controller lt ARC452A21 gt Refer to the following pages for detail Inverter POWERFUL operation I DAIKIN WEEKLY Cc OO Do not drop the remote controller Do SATSUN CTXS FTXS Series Display LCD e Displays the current settings In this illustration each section is shown with all its displays on for the purpose of explanation TEMPERATURE adjustment buttons Changes the temperature setting
83. 5025 9 WHT RED BLU YLW ROOMA ROOMB ROOMC ROOMD 15205 15215 15225 19235 1 S92 10 1 593 14 590 1594 OOOO 4 6 A l ROT R10T R3T YIE Y2E amp lt Og cm zi 5 INDOOR 4 OUTDOOR lt GAS PIPE gt lt LIQUIDPIPE gt 2 C110 CAPACITOR MRM10 MRM20 MAGNETIC RELAY FORCED OPERATION ON OFF SW SW1 Y1E Y2E ELECTRONIC EXPANSION VALVE COIL DB1 DIODE BRIDGE MR4 MAGNETIC RELAY Sw2 FORCED OPERATION MODE SELECT SW SW2 Y1S REVERSING SOLENOID VALVE COIL FU1 FU2 FU3 PCB1 2 PRINTED CIRCUIT BOARD SW3 WIRING ERROR CHECK SW SW3 Z1C Z6C CORE IPM1 INTELLIGENT POWER MODULE PS SWITCHING POWER SUPPLY SW4 PRIORITY ROOM SETTING SW SW4 NOISE FILTER gt LIVE OVERLOAD PROTECTOR SW5 FUNCTION SW SW5 S 82 8502 CONNECTOR FIELD WIRING LED1 LEDS LEDA PILOT LAMP R1T R5T R10T THERMISTOR SW6 NIGHT QUIET MODE SETTING SW SW6 U VW CONNECTOR M1C COMPRESSOR MOTOR SA1 SURGE ARRESTER V2 V3 V401 VARISTOR X11A CONNECTOR 3D092458 FAN MOTOR SHEET METAL TERMINAL STRIP FIXED PLATE X1M X3M TERMINAL STRIP
84. 6 7 16 GT Related M be EUR 158 7 17 Thermistor or Related Abnormality Outdoor 160 7 18 Electrical Box Temperature 162 7 19 Radiation Fin Temperature 163 7 20 Output Overcurrent Detection 164 RET 166 8 1 Thermistor Resistance 166 8 2 Indoor Fan Motor Connector 167 d 167 8 4 Power Supply Waveform 168 8 5 Electronic Expansion Valve 169 8 6 Four Way Valve Performance 170 8 7 Inverter Unit Refrigerant System 170 8 8 Inverter Analyzer 171 8 9 Rotation Pulse Check on the Outdoor Unit 172 8 10 Installation Condition 173 8 11 Discharge Pressure nnns 173 8 12 Outdoor Fan System Check DU 174 8 19 Main Circuit Short Check iio eoo E pn ta eua 174 6 14 Voltage ciii t t n E 175 3 15 Power Module Check ir etti ex Rcs o istud 176 Service Diagno
85. 7 CONDENSER i THERMISTOR Li FILTER i 3 8 3 8 CuT DC FAN MOTOR DISTRIBUTOR CAPILLARY TUBE LIQUID LINE STOP VALVE PROPELLER FOUR WAY 1 2 1 2 3 8 CuT GAS PIPE THERMISTOR HEADER 2CuT eEHr ROOMA 3 8 98 CUT PIPING DISCHARGE PIPE pf H RoWB GAS THERMISTOR 2 i MUFFLER 9 1 2 CuT 15 5 8 CuT GAS LINE REFRIGERANT FLOW MEME 4 COOLING COMPRESSOR ACCUMULATOR ACCUMULATOR 1 2 CuT 3D093190 3MXS24NMVJU OUTDOOR UNIT MEATEXCHANGER EXPANSION VALVE It6 Cul THERMISTOR HEADER 5 16 1 4 E i m gt QBUS SA e L ROOM AN FILTER 1 4 CuT 45 16 Cul ye _ gt FIELD e 2 PIPING CONDENSER LIQUID THERMISTOR 12 t 5 16 CuT WITH 1 4 le FILTER 38 a 3 8 CuT DC MOTOR DISTRIBUTOR 50 CAPILLARY TUBE LIQUID LINE FOUR WAY STOP VALVE PEO PELE AN E GUT Ae P CuT Ss 5 8 CuT 3 8 CuT L 3 045 PPE THERMISTOR EEN ES eH ROOM A 38CUT J MUFFLER ____ 8 8 DISCHARGE PIPE p 5 GAS PIPE THERMISTOR CONS FIELD THERMISTOR MUFFLER MUFFLER T gt PIPING GAS PIPE THERMISTOR GAS MUFF
86. 7 Troubleshooting for Outdoor 136 7 1 4 R frge rant 136 7 2 Low voltage Detection or Over voltage 138 7 3 Wiring Error Check 140 7 4 Unspecified Voltage Between Indoor Unit and Outdoor Unit Anti icing Control in Other 141 7 5 Anti icing Control for Indoor 142 7 6 Outdoor Unit 144 7 7 OL Activation Compressor Overload 145 7 9 Compressor LOCK tie oos edt detti ioo gae 147 T9 Sal mc ig 148 7 10 Input Overcurrent Detection 149 7 11 Four Way Valve 150 7 12 Discharge Pipe Temperature 152 7 13 High Pressure Control in 153 7 14 Compressor Sensor System Abnormality 154 7 15 Position Sensor ADhOrmallly 2 E eas 156 7 16 CT or Related Abnormality 158 7 17 Thermistor or Related Abnormality Outdoor 160 7 18 Electrical Box Temperature 162 7 19 Radiati
87. 9 16 x 27 9 16 55 x 700 x 700 2 5 32 x 27 9 16 x 27 9 16 55 x 700 x 700 cfm Fan PowerConsumption Rate w 8 76 938 8 Weight Mass Lbs kg Gross Weight Gross Mass dB A 36 0 29 5 36 0 29 5 38 5 29 0 38 5 29 0 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes m QUA 62 014 64 COE 038 0 9 5 038 0 9 5 Drawing No 3D080626A 3D080627A kcal h kW x 860 Btu h 2 kW x 3412 cfm m3 min x 35 3 12 Specifications SiUS121502E Indoor Unit 60 Hz 208 230 V Heating Cooling Heaing 2 ER Fan Horizontal Downward Horizontal Downward Sound Pressure dB A 42 5 31 5 42 5 31 5 46 0 37 5 46 0 37 5 Both Liquid and Gas Pipes Both Liquid and Gas Pipes 22 014 0 6 4 1 4 0 6 4 CU ihe 112 0 12 7 1 2 12 7 VP20 O D 1 1 32 26 1 0 25 32 20 VP20 O D 1 1 32 26 1 0 25 32 20 3D080628A 3D080629A Conversion Formulae kcal h kW x 860 Btu h 2 kW x 3412 cfm m3 min x 35 3 Specifications 13 Outdoor Unit SiUS121502E 2 Outdoor Unit 60 Hz 208 230 V 2MXS18NMVJU 95 125 SEER 140 189 Casing Color White Hermetically Sealed Swing Type Compressor 2YC36PXD 1100 FVCSOK 215 06 RATOA 346 1 75 H 2 179 L 1 119 L lt gt Propeller Er MooOupt Running A H029 M029 7L028 029 M 0297
88. A 22 5 22 gt Compressor 4 3 R17360 The illustration is for the 4 room models as representative and have 4 lines of indoor unit system D The 3 room models have lines C and 2 room models have 2 lines B 1 Outdoor Heat 1 The outdoor heat exchanger thermistor is used for controlling the target discharge pipe Exchanger temperature The system sets the target discharge pipe temperature according to the outdoor Thermistor and indoor heat exchanger temperature and controls the electronic expansion valve opening so that the target discharge pipe temperature can be obtained 2 In cooling operation the outdoor heat exchanger thermistor is used for detecting the disconnection of the discharge pipe thermistor When the discharge pipe temperature drops below the outdoor heat exchanger temperature by more than a certain value the discharge pipe thermistor is judged as disconnected 3 In cooling operation the outdoor heat exchanger thermistor is used for high pressure protection 2 Discharge 1 The discharge pipe thermistor is used for controlling discharge pipe temperature If the Pipe Thermistor discharge pipe temperature used in place of the inner temperature of the compressor rises abnormally the operating frequency becomes lower or the operation halts 2 The discharge pipe thermistor is used for detecting disconnection of the discharge pipe thermistor 3 Gas Pipe In cooling
89. AS PIPE THERMISTOR ROOM D MUFFLER cut 3D093192 205 Wiring Diagrams 2 Wiring Diagrams 2 1 Indoor Unit CTXSO7LVJU FTXS09 12LVJU INTELLIGENT EYE SENSOR WIRELESS REMOTE CONTROLLER MSS 5105121502 1 X1M 2 BLK 1 e 3 OUTDOOR WHT 2 RED 3 GRN mm FIELD WIRING GRN YLW TRANSMISSION CIRCUIT ebur 1 CAUTION NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN BZ BUZZER C101 C102 FG FRAME GROUND FAU FUSE H1P H3P PILOT LAMP MR10 MAGNETIC RELAY 3 FAN MOTOR M1S M3S SWING MOTOR PRINTED CIRCUIT BOARD RIT R2T THERMISTOR S1 S49 CONNECTOR swt OPERATION SWITCH 2 VARISTOR ARBRES INDOOR X1M TERMINAL STRIP PROTECTIVE GROUND PCB1 Control PCB C 3D058246L 206 PCB2 Signal receiver PCB PCB3 Display PCB PCB4 INTELLIGENT EYE sensor PCB Refer to Part 3 for Printed Circuit Board Connector Wiring Diagram Appendix SiUS121502E Wiring Diagrams FTXS15 18 24LVJU r 1 B 11 OUTDOOR 9 l mu FIELD WIRING CAUTION NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MA
90. B If the temperature detected by the discharge pipe thermistor rises above A the compressor Conditions stops B The error is cleared when the discharge pipe temperature is dropped below 120 C 248 F 95 2032 24 36 class 120 C 248 F 107 C 224 6 F lf the error repeats the system is shut down Reset condition Continuous run for about 60 minutes without any other error Supposed B Defective discharge pipe thermistor Causes Defective outdoor heat exchanger thermistor or outdoor temperature thermistor B Defective electronic expansion valve or coil Refrigerant shortage B Defective four way valve B Water mixed in refrigerant Defective stop valve Defective outdoor unit PCB Troubleshooting N Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Check No 01 Refer to P 166 Check No 01 Check the thermistors Discharge pipe thermistor Outdoor heat exchanger thermistor y OK Outdoor temperature thermistor Check No 12 Check No 12 Refer to P 169 SN NG Replace the electronic expansion valve expansion valve or the coil Check No 14 Refer to P 170 Check No 14 NG Refer to the refrigerant line Check the refrigerant line check procedure Refrigerant shortage Four way valve OK Water mixed Stop valve Heplace the outdoor unit PCB main PCB R20417 152 Service Diagnosis SiUS121502E Troubles
91. Between Indoor Unit and Remote Controller 133 6 8 Signal Transmission Error Between MAIN Remote Controller and SUB Remote Controller 134 6 9 Field Setting IR 135 Troubleshooting for Outdoor 136 721 vu qu tUm 136 7 2 Low voltage Detection or Over voltage Detection 138 7 3 Wiring Error Check 140 7 4 Unspecified Voltage Between Indoor Unit and Outdoor Unit Anti icing Control in Other 141 7 5 Anti icing Control for Indoor 142 7 6 Outdoor Unit 144 7 7 OL Activation Compressor Overload 145 7 8 GOImpIessor LOCK sire ta om De M SI 147 WG 148 97 98 SiUS121502E 7 10 Input Overcurrent Detection 149 7 11 Four Way Valve 02 0 02 nnn nnn 150 7 12 Discharge Pipe Temperature 2 152 7 13 High Pressure Control in 153 7 14 Compressor Sensor System Abnormality 154 7 15 Position Sensor Abnormality 15
92. D PIPING 5 8 CuT Appendix INDOOR UNIT 1 4 CuT HEAT EXCHANGER THERMISTOR ON HEAT EXCH FAN MOTOR 3 8 CuT REFRIGERANT FLOW COOLING HEATING 4D074606 INDOOR UNIT FAN MOTOR 1 2 CuT REFRIGERANT FLOW COOLING gt HEATING 4D074608 FIELD PIPING Piping Diagrams FAN MOTOR HEADER FTXS15 18LVJU INDOOR UNIT 1 5 16 CuT DISTRIBUTOR HEAT EXCHANGER THERMISTOR FIELD PIPING ON HEAT 1 TT 1 2 1 2 CuT S j REFRIGERANT FLOW COOLING HEATING 4D074609 FDXS09 12LVJU __INDOORUNTT ___________ 1 4CuT HEAT EXCHANGER THERMISTOR ON HEAT EXCH FIELD PIPING FIELD PIPING 3 8CuT cu a NACER u REFRIGERANT FLOW COOLING HEATING 4D074621 201 Piping Diagrams CDX S15 18LVJU INDOOR UNIT HEAT EXCHANGER FIELD PIPING 1 4 6 4mm CuT rie FIELD PIPING 1 2 12 7mm CuT REFRIGERANT FLOW 4D075271 COOLING HEATING FVXS09 12NVJU INDOOR UNIT MUFFLER ASSY HEAT EXCHANGER 202 ON HEAT EXCH TURBO FAN MOTOR 3 8 CuT REFRIGERANT FLOW COOLING HEATING 4D091794 SiUS121502E CDXS24LVJU SIROCCO FAN 1 4CuT FAN MOTOR i FIELD P
93. Defective indoor unit PCB B External factor noise etc Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Turn off the power Then turn on the power to restart the system Replace the indoor unit PCB control PCB External factor other than malfunction for example noise etc R22247 127 Troubleshooting for FFQ Series SiUS121502E 6 2 Drain Level Control System Abnormality m Error Code Method of Error The float switch detects error Detection Error Decision The water level reaches its upper limit and the float switch turns OFF Conditions Supposed Defective drain pump Causes Improper drain piping work Clogged drain piping Defective float switch Defective indoor unit PCB Defective short circuit connector X15A on indoor unit PCB Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Is the drain pump connected to the indoor unit PCB NO Connect the drain pump YES switch 551 on the indoor unit PCB to emergency EMG and check the voltage of X25A 220 240 VAC Does the drain pump work after restarting operation NO N 8 the indoor unit PCB control PCB YES YES Replace the drain pump There is a drain system abnormality Is the drain water level abno
94. Diagnosis SiUS121502E Troubleshooting for FFQ Series 6 9 Field Setting Abnormality Error Code Error Decision Conditions Supposed Causes Troubleshooting Service Diagnosis Hz gt Incorrect field setting Defective indoor unit PCB Defective outdoor unit PCB Improper power supply Indoor outdoor indoor indoor unit transmission wiring Defective remote controller wiring Be sure to turn off power switch before connecting or disconnecting Caution connectors or parts may be damaged Is the remote controller connected to one or more indoor units NO YES Is the remote controller wiring jumped between indoor units YES NO Is the field NO setting correct YES Continuously ON or OFF Do the service monitors of all the indoor units blink Blink Turn off the power Then turn on the power to restart the system NO Does the system conduct normal operation YES Are the wirings between indoor unit and outdoor unit correctly VAC between No 1 and 3 of the terminal board for transmission Are the wirings between indoor unit and outdoor unit correctly Connect the remote controller correctly Remove the jumper Set the field setting correctly Connect the wirings correctly Could be incorrect wiring Check again Check the power supply system inside the indoor unit
95. ES Start operation Y NO YES Check the power supply voltage NO Voltage as rated Y NO ES YES Check the connection of connectors See Note Correct the power supply Correct the connection Replace the indoor unit PCB control PCB Completed Error repeats Correct the power supply Start operation Replace the indoor unit PCB control PCB NO Completed Completed R20421 d Note Check the following connector CTXS FTXS CDXS FDXS FVXS series Terminal board Control PCB H1 H2 H3 Service Diagnosis 117 Troubleshooting for CTXS FTXS CDXS FDXS FVXS Series SiUS121502E 5 2 Freeze up Protection Control Heating Peak cut Control Error Code Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting Check No 01 Refer to P 166 118 D Freeze up protection control During cooling operation the freeze up protection control operation halt is activated according to the temperature detected by the indoor heat exchanger thermistor Heating peak 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 Freeze up protection control During cooling operation the indoor heat exchanger temperature is below 0 32 F Heating peak cut control During heating operation t
96. FDXS FVXS Series 116 5 1 Indoor Unit 116 5 2 Freeze up Protection Control Heating Peak cut Control 118 5 3 Fan Motor or Related 119 5 4 Thermistor or Related 123 5 5 Signal Transmission Error Between Indoor Unit and Outdoor Unit 124 5 6 Unspecified Voltage Between Indoor Unit and Outdoor Unit 126 Table of Contents 5105121502 Table of Contents Troubleshooting Tor FFO SENES e 127 6 1 Indoor Unit Abhotrtmalily 5 oin Een oe 127 6 2 Drain Level Control System 128 6 3 Fan Motor AC Motor or Related Abnormality 129 64 Drain System Abnormality 130 6 5 Thermistor or Related 131 6 6 Remote Controller Thermistor Abnormality 132 6 7 Signal Transmission Error Between Indoor Unit and Remote Controller 133 6 8 Signal Transmission Error Between MAIN Remote Controller and SUB Remote Controller 134 6 9 Seting ANOMALY o toco 135
97. IN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN BZ BUZZER C101 C102 CAPACITOR FG FRAME GROUND F1U F2U FUSE H1P H3P PILOT LAMP MR10 MAGNETIC RELAY M1F FAN MOTOR M1S M3S SWING MOTOR PCB1 PCB4 PRINTED CIRCUIT BOARD 101214 2 5 3 4 6 151311 9 7 2 SW1 OPERATION SWITCH V1 VARISTOR X1M TERMINAL STRIP fey PROTECTIVE GROUND WIRELESS REMOTE T LIN A LETT INDOOR CONTROLLER 25 M3S _ C 3D060942R d Note PCB1 Control PCB PCB2 Signal receiver PCB PCB3 Display PCB PCB4 INTELLIGENT EYE sensor PCB Refer to Part 3 for Printed Circuit Board Connector Wiring Diagram Appendix 207 Wiring Diagrams FDXS09 12LVJU CDX S15 18 24LVJU A2P LED LED LED H1P H2P H3P S1W SIGNAL 21 00000 RECEIVER WIRELESS REMOTE CONTROLLER 1 Note A1P Control PCB A2P Display PCB 208 PROTECTIVE GROUND C1 CAPACITOR FUSE TERMINAL FOR CENTRALIZED CONTROL wA INDOOR TRANSMISSION CIRCUIT BLK YLW wur 1 266 C1 H1P H3P M1F A1P A2P Q1M R1T R2T 51 532 RTH1 S1W V1TR
98. IPING 1 2CuT INDOOR UNIT HEAT EXCHANGER THERMISTOR Ne FVXS18NVJU REFRIGERANT FLOW e COOLING HEATING 4D080593 INDOOR UNIT MUFFLER ASSY HEATEXCHANGER Pe 2 tz y EST m 1 FIELD PIPING i TURBO FAN FAN MOTOR 1 4 CuT FIELD PIPING Se 1 2 tT J REFRIGERANT FLOW COOLING HEATING 4D091795 Appendix 5105121502 FFQ09 12 15 18LVJU Appendix Field piping C1220T O To Field piping B C1220T O Outdoor unit Indoor unit MODEL A B FFQO9 12LVJU 1 4 6 4 3 8 9 5 FFQ15 18LVJU 1 4 6 4 1 2 12 7 4D080624 Piping Diagrams 203 Piping Diagrams 1 2 Outdoor Unit SiUS121502E 2MXS18NMVJU OUTDOOR UNIT EXPANSION VALVE LIQUID PIPE c3 THERMISTOR 5 16 Cuy THERMISTOR HEADER 2 60152 Ua ET FILTER FIELD PIPING i 5116 Cut 5 16 aug 1 4 8 11 LIQUID 2 HEAT EXCHANGER i
99. L005 PowrConumpion Ww H65 M 65 L58 667 66 1 12 14 0 28 15 16 x 34 1 4 x 12 5 8 735 x 870 x 320 31 7 8 x 41 9 16 x 17 1 2 810 x 1 056 x 444 141 64 50 5 1 4 x 2 0 6 4 x 2 3 8 1 1 2 x 1 59 5 x 2 12 7 x 1 11 16 18 0 Heat Insulation Both Liquid and Gas Pipes No of Wiring Connections 3 for Power Supply 4 for Interunit Wiring 164 50 for Total of Each Room 82 25 for One Room Amount of Additional Charge of 0 21 20 98 3 8 ft 30 m or more Refrigerant 49 1 4 15 between Indoor Unit and Outdoor Unit 24 5 8 7 5 between Indoor Units Drawing No 3D093257 gt Starting Current Dimension H x W x D in Packaged Dimension H x W x D Weight Mass Gross Weight Gross Mass Sound Pressure Level 3 3 L a E 5 5 5 o 55 5 3833522233 gt 383786833 Piping Connections Max Interunit Piping Length Max Installation Height Difference Notes 1 Max for the combination of CTXS FTXS series indoor units Min for the combination of CDXS FDXS series indoor units KW x 860 2 The data are based on the conditions shown in the table below Btu h KW x 3412 Coolin Indoor 80 FDB 26 7 CDB 67 FWB 19 4 CWB m min x 35 3 g Outdoor 95 FDB 35 CDB 75 FWB 24 CWB Indoor 70 FDB 21 CDB 60 F WB 15 6 CWB Heating Outdoor 47 FDB 8 3 CDB 43 F WB 6 CWB Piping Length 25 ft 7 5 m 14
100. LER MUFFLER ROOMC MUFFLER S 5 8 _ 5 5 GAS LINE REFRIGERANT FLOW STOP VALVE COOLING COMPRESSOR ACCUMULATOR HEATING eee Ne 3D093191 204 Appendix 5105121502 4MXS36NMVJU 5 8 CuT OUTDOOR UNIT DC FAN MOTOR OUTDOOR AIR THERMISTOR HEAT EXCHANGER CONDENSER THERMISTOR 5 16 53 8 Cut 3 8 CuT 3 8 CuT CAPILLARY TUBE HEADER MUFFLER WITH FILTER DISTRIBUTOR LIQUID LINE PROPELLER FAN FOUR WAY STOP VALVE VALVE v mde M 5 8 3 8 e e e dale HEADER 3 8 CuT 3 DISCHARGE PIPE THERMISTOR MUFFLER MUFFLER MUFFLER 5 8 CuT O GAS LINE REFRIGERANT FLOW PERAE OR aa COMPRESSOR ACCUMULATOR 1 2 CuT Appendix HEAT EXCHANGER Piping Diagrams ELECTRONIC EXPANSION VALVE LIQUID PIPE THERMISTOR 516 CuT S 5 FILTER 1 4 CuT BOOMB 1 4 PIPING ar 59 14 CUT LIQUID e ROOM C 1 4 CuT 69 1 4 CuT EEH D 1 4 cas 5 MUFFLER en GAS PIPE THERMISTOR ROOMB FIELD MUFFLER 2 00D gt ENG MUFFLER G
101. Liquid pipe temperature lt 5 C 23 F for total of 10 minutes Condition for cancelling Liquid pipe temperature gt 7 C 44 6 F for 10 minutes continuously Liquid pipe 10 minutes temperature TG 44 6 F 32 F 50C estj LA Normal operation 10 minutes Freeze prevention control Start Cancel R22275 Function and Control SiUS121502E Function of FFQ Series 2 4 Hot Start Control In Heating Operation Only Outline Detail Function and Control At startup with thermostat ON or after the completion of defrosting in heating operation the indoor unit fan is controlled to prevent cold air from blasting out and ensure startup capacity gt 34 C 93 2 Tc gt 52 C 125 6 F Defrost ending or oil return ending Hot start ending conditions or Thermostat ON lapse of 3 minutes OR Hot start control Hot start in progress H L remote m Normal operation controller setting LL The fan is not OFF before initiating the hot start LL The fan is OFF before initiating the hot start OFF Remote controller Normal operation setting Level position R19187 THs Temperature detected by the gas thermistor Tc High pressure equivalent saturation temperature 59 Control Specification 5105121502 3 Control Specification 3 1 Function of Thermistor 1 y 4 X m 3 Four way valve oS A Electronic expansion valve 5 QU
102. QUIET mode automatic Quick warming function J High ceiling appication J Hotstartfunction TC Automatic defrosting T Either side drain rightorief Program dry function F C changeover R C temperature display Fay factory setting 6 Lifestyle New POWERFUL operation Remote 5 room centralized controller option Convenience non inverter Control Remote control adaptor Inverter POWERFUL operation Prioriy roomseting J COOLTHEATmodelock J no en oo Category Functions 2 ur ur 2 gt rT LO LO b n N N O O LL LL LL LL normal open pulse contact option Remote control adaptor normal open contact option DIII NET compatible adaptor option Wireless e Controller Signal receiving sign 9565 with back light Temperature display pu sc Note Available 1 With wireless remote controller Not available 2 With wired remote controller List of Functions 5 Functions SiUS121502E 7 Basic Function Inverter with inverter power control ENEN Health amp Air purifying filter 0 1 Clean Operation limit for cooling Photocatalytic deodorizing filter Operation limit for cooling FDB m photocatalytic j Operation limit for heating CWB
103. R21939 Service Diagnosis 175 Check SiUS121502E 8 15 Power Module Check Check No 22 Check to make sure that the voltage between and of the power module is about V before checking Disconnect the compressor harness connector from the outdoor unit PCB To disengage the connector press the protrusion on the connector Follow the procedure below to measure resistance between the or terminal of the power module and the U V or W terminal of the compressor with a multimeter Evaluate the measurement results referring to the following table Positive terminal of digital Power module UVW Power module UVW multimeter Negative terminal of digital UVW Power module UVW Power module multimeter 4 Resistance is OK several several R21940 176 Service Diagnosis SiUS121502E Part Trial Operation and Field Settings 1 PUMP DOWN hee ie res 178 2 Wiring Error Check itu o Ia oot ado ein 179 SERIES E 181 3 1 5 FTXS CDXS FDXS FVXS Series 181 92 eps ETE 183 1 gt 185 MEG v d ge 185 42 CTXS FTXS CDXS FDXS FVXS Series 187 EMEN MT 192 5
104. S stop without compressor Replace the compressor running NO System shut NO down after errors repeated n Check the electronic several times expansion valve coil Go to Check No 12 YES Replace the compressor R21067 147 Troubleshooting for Outdoor Unit SiUS121502E 7 9 DC Fan Lock 4 I a Error Code Outdoor Unit LED AD 112 24 30 40 50 Display Method of Error An error is determined with the high voltage fan motor rotation speed detected by the Hall IC Detection Error Decision B The fan does not start in 30 seconds even when the fan motor is running Conditions lf the error repeats the system is shut down B Reset condition Continuous run for about 5 minutes without any other error Supposed B Disconnection of the fan motor Causes B Foreign matter stuck in the fan B Defective fan motor B Defective outdoor unit PCB Troubleshooting N Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Check No 16 Refer to P 172 Fan motor connector disconnected Turn off the power and reconnect the connector Foreign matters in or around the fan Remove the foreign matters NO Turn on the power Rotate the fan NO me Replace the outdoor fan motor YES Check No 16 Check the rotation pulse input on the outdoor unit PCB main PCB Pulse signal generated Is the fuse X for the Replace
105. TIMER button AIRFLOW EYE Press this button and adjust 1 the day and time with the SELECT button blank Press this button again to No Setti dun complete TIMER setting o oet ng Combination OFF TIMER button button TIMER CANCEL Press this button and adjust the day and time with the button SELECT button SELECT button Cancels the timer setting Changes the ON OFF TIMER Press this button again to Cannot be used for the and WEEKLY TIMER settings complete TIMER setting WEEKLY TIMER operation R21919 Reference Refer to the following pages for detail COMFORT AIRFLOW operation P 37 39 INTELLIGENT EYE operation WEEKLY TIMER operation ECONO operation d Note Refer to the operation manual of applicable model for detail You can download operation manuals from Daikin Business Portal Daikin Business Portal Product Information Operation Installation Manual URL https globalid daikin com business_portal login 80 Remote Controller SiUS121502E CDXS FDXS Series 2 CDXS FDXS Series Signal transmitter ES Receiver WDAIKIN Display LCD l e Displays the current settings e To use the remote controller aim the A In this illustration each section is transmitter at the indoor unit If there cet dw ILD shown with all its displays on for the 15 anything to block signals between 5 purpose of explanation the unit an
106. U V and W Check No 15 Inverter analyzer Check with the inverter analyzer RSUK0917C YES Correct the power supply or replace the outdoor unit PCB main PCB Turn off the power and reconnect the harnesses Turn on the power again and start operation Check No 18 Check the discharge pressure R21863 Service Diagnosis 149 Troubleshooting for Outdoor Unit 5105121502 7 11 Four Way Valve Abnormality Error Code Outdoor Unit LED Display Method of Error Detection Error Decision Conditions Supposed Causes 150 11 e 10 20 40 50 The liquid pipe thermistor and the outdoor heat exchanger thermistor are checked to see if they function within their normal ranges in the operating mode A following condition continues for A seconds after the compressor has started Heating A seconds 240 Cooling operation The lowest liquid pipe temperature among the rooms in operation Tde gt 45 C 81 F B Heating operation The highest liquid pipe temperature among the rooms in operation Tde lt O C 0 F Tde outdoor heat exchanger temperature Disconnection of four way valve coil Defective four way valve coil or harness Defective outdoor unit PCB Defective thermistor Refrigerant shortage Water mixed in refrigerant Defective stop valve Service Diagnosis SiUS121502E Troubleshooting Check No 01 Refer to P 166 Check No 13 R
107. When the microcomputer works in order the LED A blinks and when the system is in normal condition the red LEDs are OFF Even after the error is canceled and the unit operates in normal condition the LED indication remains Service monitor PCB ere R21921 101 Service Diagnosis SiUS121502E 3 Service Diagnosis 31 5 FTXS CDXS FDXS FVXS Series 3 1 1 ARC452 Series Remote Controller Method 1 1 When the timer cancel button is held down for 5 seconds 22 is displayed on the temperature display screen WDAIKIN ON OFF 4 EXT SELECT OFF v Timer cancel button CANCEL 7135 EY lt ARC452 Series gt R14460 2 Press the timer cancel button repeatedly until a long beep sounds B indication changes in the sequence shown below d Note 1 Ashort beep or two consecutive beeps indicate non corresponding codes 2 oreturn 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 method 2 Refer to page 103 102 Service Diagnosis SiUS121502E Service Diagnosis Method 2 1 Press the buttons TEMPA TEMP MODE at the same time to enter the
108. XS FTXS Series 44 1 11 Inverter POWERFUL Operation 45 46 1 13 WEEKLY TIMER Operation CTXS FTXS FVXS series 47 t T TUUS 53 2 F ncllon OL FFO SOMES 54 2 Drain Pump CONTO ELE os teet 54 2 2 Thermostat Sensor in Remote 222 56 Table of Contents li SiUS121502E 2 3 Freeze Prevention 58 2 4 Hot Start Control In Heating Operation 59 9 mme m 60 3 1 FUNCTION 60 o Mode 62 3 3 Freguency Control M 63 3 4 Controls at Mode Changing 65 3 5 Discharge Pipe Temperature 66 3 6 Input Gurrent CONTO ena e eee 67 3 7 Freeze up Protection 68 3 8 Heating Peak cut 68 3 9 Fain een 69 3 10 Liquid Compression Protection 0000 69 Se lite 70 3 12 Low Hz High Pressure 1 44 40400000 rennen 71 3 13 Electronic Expansion Valve 72 3 14
109. YE Operation CTXS FTXS Series Outline This function detects the existence of humans in the room with a motion sensor INTELLIGENT EYE and reduces the capacity when there is nobody in the room in order to save electricity Detail 1 Detection method by INTELLIGENT EYE If the sensor detects the outputs 10 times sec or more it judges humans are in the room sec d sampling 20 msec Sensor output Low Human motion Human detection ON signal OFF R19471 B The sensor detects human motion by receiving infrared rays and displays the pulse wave output The microcomputer in the indoor unit carries out a sampling every 20 msec and if it detects 10 cycles of the wave in 1 second in total it judges humans are in the room as the motion signal is ON B The sensor may detect human motion with up to 20 msec latency 2 The motions in cooling within within uu 20 min 20 min 20 min 1 r AS detection ON signa OFF 7 T Reset Reset Reset Target temperature Remote controller ON INTELLIGENT EYE button Operation Set speed Set speed Fan speed X R19414 In FAN operation the fan speed is reduced by 60 rpm When the microcomputer does not have a signal from the sensor in 20 minutes it judges that is in the room and operates the unit a
110. aluated by the indoor unit PCB Outdoor Unit Low voltage detection An abnormal voltage drop is detected by the DC voltage detection circuit Over voltage detection An abnormal voltage rise is detected by the over voltage detection circuit Indoor Unit There is no zero cross detection in approximately 10 seconds Outdoor Unit Low voltage detection B The voltage detected by the DC voltage detection circuit is below 150 V for 0 1 second lf the error repeats the system is shut down Reset condition Continuous run for about 60 minutes without any other error Over voltage detection B An over voltage signal is fed from the over voltage detection circuit to the microcomputer B The compressor stops if the error occurs and restarts automatically after 3 minute standby Power supply voltage is not as specified Defective DC voltage detection circuit Defective over voltage detection circuit Defective PAM control part Disconnection of compressor harness Short circuit inside the fan motor winding Noise Momentary drop of voltage Momentary power failure Defective outdoor unit PCB Defective indoor unit PCB Service Diagnosis SiUS121502E Troubleshooting Service Diagnosis Troubleshooting for Outdoor Unit Be sure to turn off power switch before connecting or disconnecting Caution connectors or parts may be damaged Check the power supply voltage Is the voltage fluctuation within 10 from
111. any solder cracking on the PCB 4 If any solder cracking is found replace the PCB or repair the soldered section If there is no solder cracking replace the PCB Caution 1 When the output frequency is low the LEDs blink slowly As the output frequency increases the LEDs blink quicker The LEDs look like they are lit 2 On completion of the inverter analyzer diagnosis be sure to re crimp the FASTON terminals Otherwise the terminals may be burned due to loosening Direction of crimp This size is shortened by the crimp FASTON terminal 8 15292 8 9 Rotation Pulse Check on the Outdoor Unit PCB Check No 16 172 Outdoor fan motor Make sure that the voltage of 320 52 V is applied Set operation off and power off Disconnect the connector S70 Check that the voltage between the pins 4 7 is 320 VDC Check that the control voltage between the pins 3 4 is 15 VDC Check that the rotation command voltage between the pins 2 4 is 0 15 VDC Keep operation off and power off Connect the connector 570 Check whether 4 pulses 0 15 VDO are input at the pins 1 4 when the outdoor fan motor is rotated 1 turn by hand oO gud e m When the fuse is melted check the outdoor fan motor for proper function If NG in step 2 gt Defective PCB Replace the outdoor unit PCB main PCB If NG in step 4 Defective Replace the outdoor fan motor If OK in both steps 2 and 4 Replace the o
112. as leaks be sure to locate the leaking point and repair it before charging the refrigerant After charging refrigerant make sure that there is no refrigerant leak If the leaking point cannot be located and the repair work must be stopped be sure to perform pump down and close the service valve to prevent the refrigerant gas from leaking into the room The refrigerant gas itself is harmless but it may generate toxic gases when it contacts flames such as fan and other heaters stoves and ranges When relocating the equipment make sure that the new installation site has sufficient strength to withstand the weight of the equipment If the installation site does not have sufficient strength and if the installation work is not conducted securely the equipment may fall and cause injury Check to make sure that the power cable plug is not dirty or loose then insert the plug into a power outlet securely If the plug has dust or loose connection it may cause an electrical shock or fire Be sure to install the product correctly by using the provided standard installation frame Incorrect use of the installation frame and improper installation may cause the equipment to fall resulting in injury Be sure to install the product securely in the installation frame mounted on the window frame If the unit is not securely mounted it may fall and cause injury When replacing the coin battery in the remote controller be sure to dispose of the
113. at ON runnin running Ger ON Error display OFF Drain pump 5 min 5 sec R21090 When the float switch turns ON the drain pump turns ON simultaneously fthe float switch remains ON even after the residual operation of the drain pump has ended the error code 72 is displayed on the remote controller The drain pump turns OFF once residual operation has ended then turns ON again after 5 seconds 2 1 4 Ifthe Float Switch Turns ON and OFF Continuously or the Float Switch Turns ON While Displayed ON Float switch OFF Thermostat runnin running opf Error display OFF ON Drain pump OFF e gt k 6 kH 5 min 5 min 5 min 5 min 5 min 5 min 5 min 5 sec R21091 When the float switch turns ON the drain pump turns ON simultaneously 1 the float switch continues to turn ON and OFF 5 times consecutively it is judged as a drain system error and the error code is displayed on the remote controller 2 The drain pump continues to turn ON OFF in accordance with the float switch ON OFF even after 77 is displayed on the remote controller 3 While the error code is displayed if the float switch remains ON even after the residual operation of the drain pump has ended the error code 83 will be displayed on the remote controller Function and Control 55 Function of FFQ Series SiUS121502E 2 2 Thermostat Sensor in Remote
114. ating energized S80 voltage at 208 230 VAC with compressor on Fig 1 NO the outdoor unit PCB main PCB YES Disconnect the four way valve coil from the connector and check the continuity Four way valve coil resistance at 1000 2000 NO Replace the four way valve Coil YES Replace the four way valve R21936 Fig 1 Voltage 580 208 230 Time Compressor ON R14674 8 7 Inverter Unit Refrigerant System Check Check No 14 Refrigerant system check Is the discharge pipe thermistor disconnected from the holder YES Reconnect the thermistor Check for refrigerant leakage See the section on refrigerant shortage detection Replace the refrigerant R18870 170 Service Diagnosis SiUS121502E Check 8 8 Inverter Analyzer Check Check No 15 B Characteristics Inverter analyzer RSUKO917C If an abnormal stop occurs due to compressor startup failure or overcurrent output when using an inverter unit it is difficult to judge whether the stop is caused by the compressor failure or some other failure main PCB power module etc The inverter analyzer makes it possible to judge the cause of trouble easily and securely Connect an inverter analyzer as a quasi compressor instead of compressor and check the output of the inverter B Operation Method Step 1 Be sure to turn the power off Step 2 Install an inv
115. ating operation CTXS FTXS series Cooling Operation Target temperature 3 0 5 4 F Target temperature 2 0 3 6F J 4 Target temperature 2 0 C 3 6 ThermostatOFF Thermostat OFF Target temperature 3 0 C 5 4 F Heating Operation R21862 Ex When the target temperature is 25 C 77 F Cooling 23 C 73 4 F Thermostat OFF 22 C 71 6 F Switch to heating Heating 27 C 80 6 F Thermostat OFF 28 C 82 4 F Switch to cooling CDXS FDXS FVXS series Cooling Operation Target temperature 2 5 C 4 5 Target temperature 2 0 3 6 F gt Target temperature 1 5 C 2 7 F ThermostatOFF Thermostat OFF Target temperature 3 0 C 5 4 F Heating Operation R22000 Ex When the target temperature is 25 C 77 F Cooling 23 C 73 4 F Thermostat OFF 22 C 71 6 F Switch to heating Heating 26 5 C 79 7 F Thermostat OFF 27 5 C 81 5 F Switch to cooling 41 Function of CTXS FTXS CDXS FDXS FVXS Series SiUS121502E 1 7 Thermostat Control Outline Thermostat control is based on the difference between the room thermistor temperature and the target temperature Detail Thermostat OFF Condition The temperature difference is in the zone Thermostat ON Condition The temperature difference returns to the zone C after being in the zone A The system resu
116. aution connectors or parts may be damaged Turn off the power Check the connection of the reactor NO Connection OK YES Check the connection of the compressor Connection OK YES Disconnect the reactor from the outdoor Check the reactor unit PCB and measure the resistance value between reactor terminals with multimeter NO YES Disconnect the compressor relay harness Check the compressor from the outdoor unit PCB and measure the resistance value between the each 3 terminals of the compressor with multimeter NO 10 Q or less between each terminal YES Connect the reactor properly Connect the compressor properly the reactor the compressor or the compressor relay harness Restart the operation again and if the error occurs again replace the outdoor unit PCB main PCB R20419 155 Troubleshooting for Outdoor Unit 5105121502 7 15 Position Sensor Abnormality Error Code Outdoor Unit LED Display Method of Error Detection Error Decision Conditions Supposed Causes 156 NT i Ad 13 20 30 40 50 A compressor start up failure is detected by checking the compressor running condition through the position detection circuit B error repeats the system is shut down Reset condition Continuous run for about 5 minutes without any other error Power supply voltage is not as specified Disconnection
117. be displayed Remote Controller 93 FFQ Series 94 Operation mode Used to display the current operation mode Cool Heat Vent Fan Dry or Auto Auto mode the actual operation mode Cool or Heat will be also displayed Operation mode cannot be changed when OFF is displayed Operation mode can be changed after starting operation Fan Speed e Used to display the fan speed that is set for the indoor unit The fan speed will not be displayed if the connected model does not have fan speed control functionality Setpoint Used to display the setpoint for the indoor unit Use the Celsius Fahrenheit item in the main menu to select the temperature unit Celsius or Fahrenheit Stand by for Defrost Hot start STANDBY gt If ventilation icon is displayed in this field Indicates that an energy recovery ventilator ERV is connected For details refer to the Operation Manual of the ERV Message The following messages may be displayed This function is not available Displayed for a few seconds when Operation button is pressed and the indoor unit does not provide the corresponding function e remote control group the message will not appear if at least one of the indoor units provides the corresponding function SiUS121502bE Error Push Menu button Warning Push Menu button Displayed if an error or warning is detected Time to cl
118. ce is converted into the DC power source for the present The DC power source is reconverted into the three phase AC power source with variable frequency B When the frequency increases the rotation speed of the compressor increases resulting in an increase of refrigerant circulation This leads to a larger amount of heat exchange per unit B When the frequency decreases the rotation speed of the compressor decreases resulting in a decrease of refrigerant circulation This leads to a smaller amount of heat exchange per unit The following drawing shows a schematic view of the inverter principle Refrigerant circulation rate high lt lt high speed Amount of heat exchanged air large Amount of heat exchanged air large Amount of heat exchanged air small D D gt Amount of heat gt exchanged air small low speed _ 4 frea 50 Hz itv 60 Hz freq variable VUE Refrigerant circulation rate low R2812 Inverter Features inverter provides the following features Function and Control The regulating capacity can be changed according to the changes in the outdoor temperature and cooling heating load Quick heating and quick cooling The rotation speed of the compressor is increased when starting the heating or cooling This enables to reach the set temperature quickly Even during extreme cold weather high capacity is achieved It is maintained even whe
119. ck the thermistor resistance value the defective thermistor Replace the indoor unit PCB control PCB R21870 Indoor heat exchanger thermistor 1 liquid pipe R2T Indoor heat exchanger thermistor 2 R3T Room temperature thermistor R1T ERO I Ur Service Diagnosis 131 Troubleshooting for FFQ Series 5105121502 6 6 Remote Controller Thermistor Abnormality Error Code Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting d Note 132 T Even if remote controller thermistor is faulty system is possible to operate by system thermistor Malfunction detection is carried out by the temperature detected by the remote controller thermistor The remote controller thermistor is disconnected or shorted while the unit is running B Defective thermistor B Broken wire Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Delete the record of error codes See the Note Is Zu displayed on the remote controller External factor other than equipment malfunction for example noise etc the remote controller R21111 To delete the record of error codes press the ON OFF button for 4 seconds or more while the error code is displayed in the inspection mode Service Diagnosi
120. comfortable heating The cold air blast is prevented using similar control when defrost control starts or when the thermostat is turned ON 1 14 2 Signal Receiving Sign When the indoor unit receives a signal from the remote controller the unit emits a signal receiving sound 1 14 3 Indoor Unit ON OFF Button An ON OFF button is provided on the display of the unit B Press the ON OFF button once to start operation Press once again to stop it B ON OFF button is useful when the remote controller is missing or the battery has run out Operation mode Temperature setting Airflow rate AUTO 25 C 77 F Automatic Inthe case of multi system operation there are times when the unit does not activate with this button Ex CTXS FTXS series ON OFF button R22266 e 1 14 4 Auto restart Function d Note Function and Control If a power failure including one for just a moment occurs during the operation the operation restarts automatically when the power is restored in the same condition as before the power failure It takes 3 minutes to restart the operation because the 3 minute standby function is activated 53 Function of FFQ Series SiUS121502E 2 Function of FFQ Series 2 4 Drain Pump Control 2 1 1 Normal Operation Float switch O Thermostat ON runnin running OFE ON Error display OFF ON Drain pump OFF 5 min R21088 T
121. d Check the power supply voltage Is the voltage fluctuation within 10 from the rated value Correct the power supply Check the indoor unit outdoor unit connection wires YES Is there any wiring error Correct the indoor unit outdoor unit connection wires NO Check the voltage of the connection wires on the indoor terminal board between No 1 and No 3 and between No 2 and No 3 NO Properly insulated Replace the connection wires between the indoor unit and outdoor unit YES Check the LED A on the outdoor unit PCB Continuously or OFF Is LED A blinking y Replace the outdoor unit PCB main PCB Blink Rotate the outdoor fan by hand Does the outdoor fan rotate smoothly NO Replace the outdoor fan motor and the outdoor unit PCB main PCB YES Check No 11 Check the power supply waveform Is there any disturbance Replace the indoor unit PCB control PCB Locate the cause of the disturbance of the power supply waveform and correct it R21193 125 Troubleshooting for CTXS FTXS CDXS FDXS FVXS Series SiUS121502bE 5 6 Unspecified Voltage Between Indoor Unit and Outdoor Unit Error Code Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting 126 The supply power is detected for its requirements pair type is different from multi type by the indoor outdoor
122. d the remote controller 8 such as a curtain the unit will not Do not drop the remote controller TEMPERATURE Do not get it wet adjustment buttons he maximum distance for i communication is approximately 13 ft BO ooo Changes the temperature setting 4 m POWERFUL 18 30 64 T 86 FAN setting button Selects the airflow rate setting COOL 18 32 c every time you press this button 64 90 F D e 10 30 C 50 86 F Auto Indoor unit quiet Low 2 FAN Not available e ON OFF button Middle low Press this button once to start operation Press once again to stop it 2 High Middle high n indoor unit quiet operation operation sound becomes weak The airflow rate also decreases POWERFUL button In DRY operation the airflow rate POWERFUL operation setting is not available R18861 lt ARC452A23 gt Reference Refer to the following pages for detail 1 Inverter POWERFUL operation 45 d Note Refer to the operation manual of applicable model for detail You can download operation manuals from Daikin Business Portal Daikin Business Portal Product Information Operation Installation Manual URL https global1d daikin com business_portal login Remote Controller 81 CDXS FDXS Series SiUS1215
123. d the temperature of each room When the shift of the frequency is less than zero lt 0 by PI control the target frequency is used as the command frequency Dropping function Input current control etc Upper limit frequency Upper limit function FMAX lt Compressor protection function Command frequency Limit frequency Skip control Target frequency Lower limit frequency Lower limit function FMIN Four way valve operation compensation etc R18023 Initial frequency control Defrost control Detail The compressor s frequency is determined by taking the following steps 1 Determine command frequency Command frequency is determined in the following order of priority 1 Limiting defrost control time 2 Forced cooling heating 3 Indoor frequency command 2 Determine upper limit frequency The minimum value is set as upper limit frequency among the frequency upper limits of the following functions Compressor protection input current discharge pipe temperature low Hz high pressure limit heating peak cut freeze up protection defrost 3 Determine lower limit frequency The maximum value is set as the lower limit frequency among the frequency lower limits of the following functions Four way valve operation compensation draft prevention pressure difference upkeep 4 Determine prohibited frequency There is a certain prohibited frequency such as a power supply frequency Function and Control 63
124. del for detail You can download operation manuals from Daikin Business Portal Daikin Business Portal Product Information Operation Installation Manual URL https global1d daikin com business_portal login 84 Remote Controller SiUS121502E 4 FFQ Series FFQ Series 4 1 lt BRC1E71 gt Wired Remote Controller FP DAIKIN Remote Controller Operation mode selector button LCD with backlight Up button A Down button V Right button Left button 4 Operation lamp On Off button Menu OK button Cancel button Fan speed control button 85 FFQ Series 86 Operation mode selector button e Press this button to select the operation mode of your preference Available modes vary with the indoor unit model Fan speed control button e Press this button to select the fan speed of your preference Available fan speeds vary with the indoor unit model Menu OK button e Used to indicate the main menu e Used to enter the selected item Up button A e Used to raise the setpoint e he item above the current selection will be highlighted The highlighted items will be scrolled continuously when the button is continuously pressed e Used to change the selected item Down button V e Used to lower the setpoint e he item below the current selection will be highlighted The highlighted items will be scrolled continuously when the button is
125. e is defective B Defective heat exchanger thermistor in the case of 23 error outdoor heat exchanger thermistor in cooling operation or indoor heat exchanger thermistor in heating operation B Defective outdoor unit PCB In case of gt Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Replace the outdoor unit PCB main PCB 74 Radiation fin thermistor Service Diagnosis SiUS121502E Troubleshooting Check No 01 Refer to P 166 Service Diagnosis Troubleshooting for Outdoor Unit nz In case of Be sure to turn off the power switch before connecting disconnecting Caution connectors or parts may be damaged Turn on the power again Error displayed again on remote controller Reconnect the connectors or thermistors Check No 01 Check the thermistor resistance value Heplace the defective thermistor s Outdoor temperature YES thermistor Discharge pipe thermistor Outdoor heat exchanger thermistor 43 error The discharge pipe temperature is lower than the heat exchanger temperature Cooling Outdoor heat exchanger Liquid pipe thermistor thermistor Gas pipe thermistor Heating Indoor heat exchanger thermistor Check No 01 Check the indoor heat exchanger thermistor resistance value in the heating operation Indoor heat exchanger thermistor f 2
126. e surrounding area and turn on again Normal R22251 133 Troubleshooting for FFQ Series SiUS121502E 6 8 Signal Transmission Error Between MAIN Remote Controller and SUB Remote Controller Error Code Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting 134 gt In case of controlling with 2 remote controllers check the system using microcomputer if signal transmission between MAIN remote controller and SUB remote controller is normal Normal transmission does not continue for specified period Remote controller is set to SUB when using 1 remote controller Connection of 2 sub remote controllers when using 2 remote controllers B Defective remote controller PCB Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Is SS1 of remote controller PCB set to SUB NO NO Using 2 remote controllers Set SS1 to MAIN turn the power supply off once and then back on YES YES Turn the power off and then back on If a malfunction occurs replace the remote controller PCB Turn the power off and then back on If a malfunction occurs replace the remote controller PCB Is SS1 of both remote controllers set to SUB NO YES Set one remote controller to MAIN turn the power supply off once and then back on R21113 Service
127. e the remote controller if you accidentally cut a wrong jumper Jumpers are necessary for electronic circuit Improper operation may occur if you cut any of them 4 2 4 Jumper Settings Jumper on indoor Function When connected When cut unit PCB factory set Fan speed setting Fan speed setting The fan stops when compressor Remote controller stops for thermostat setting OFF effective only at cooling operation Power failure Auto restart The unit does not resume recovery function operation after recovering from a power failure Timer settings are cleared Function OFF factory setting Upward airflow limit Exposed or half Set the switch to ON position setting embedded when you install the indoor unit installation embedded in the wall to avoid condensation For the location of the jumper refer to the following pages CTXSO7LVJU FTXS09 12LVJU page 18 FTXS15 18 24LVJU page 20 FDXS09 12LVJU CDXS15 18 24LVJU page 22 FVXS09 12 18NVJU page 24 Trial Operation and Field Settings 191 Field Settings 5105121502 4 3 Series 4 3 1 How to Change the Field Settings Outline If optional accessories are mounted on the indoor unit the indoor unit setting may have to be changed Refer to the instruction manual for each optional accessory BRC1E71 72 73 Note The illustrations are for BRC1E72 as representative d b 1 01 tj setting R18831 a Unit No b First code
128. ean filter Time to clean element Time to clean filter amp element Displayed as a reminder when it is time to clean the filter and or element 6 Ventilation Displayed when an energy recovery ventilator is connected Ventilation Mode icon 10 ERV BYPASS These icons indicate the current ventilation mode ERV only AUTO ERV BYPASS Air Purify ICON This icon indicates that the air purifying unit Optional is in operation 7 Lock Displayed when the key lock is set 8 Scheduled Displayed if the Schedule Off timer is enabled 9 Under Centralized control Displayed if the system is under the management of a multi zone controller Optional and the operation of the system through the remote controller is limited 10 Changeover controlled by the master indoor unit VRV only Displayed when another indoor unit on the system has the authority to change the operation mode between cool and heat Remote Controller SiUS121502E 11 Setback The setback icon flashes when the unit is turned on by the setback control 12 Airflow Direction Displayed when the airflow direction and swing are set f the connected indoor unit model does not include oscillating louvers this item will not be displayed 13 Current Day Time 12 24 hour time display Displayed if the clock is set
129. eases When the gas pipe temperature lt the average gas pipe temperature the opening degree of electronic expansion valve in the corresponding room decreases The temperatures are monitored every 40 seconds 75 Control Specification SiUS121502E 3 13 10 SC Subcooling Control Outline Detail 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 gt target SC open the electronic expansion valve of the room When the actual SC is target SC close the electronic expansion of the room Start Conditions After finishing the starting control 660 690 seconds depending on the model all the electronic expansion valve s for the operating room is are controlled Determine Electronic Expansion Valve Opening The electronic expansion valve opening is adjusted so that the temperature difference between the maximum heat exchanger temperature of connected room and the liquid pipe temperature thermistor becomes constant 3 13 11 Target Discharge Pipe Temperature Control 76 The target discharge pipe temperature is obtained from the indoor and outdoor heat exchanger temperature and the electronic expansion valve opening is adjusted so that the actual discharge pipe temperature becomes close to the target discharge pipe temperature Indirect SH superheati
130. ecomes lower or the operation halts In heating operation the indoor heat exchanger thermistor is used for detecting the disconnection of the discharge pipe thermistor When the discharge pipe temperature drops below the highest indoor heat exchanger temperature by more than a certain value the discharge pipe thermistor is judged as disconnected When only one indoor unit is operating the indoor heat exchanger thermistor is used for subcooling control The actual subcool is calculated with the liquid pipe temperature and the indoor heat exchanger temperature The system controls the electronic expansion valve openings to obtain the target subcool The indoor heat exchanger thermistor is used for wiring error check function The refrigerant flows in order from the port A to detect the indoor heat exchanger temperature one by one and then wiring and piping can be checked When only one indoor unit is in heating the liquid pipe thermistor is used for subcooling control The actual subcool is calculated with the liquid pipe temperature and the maximum indoor heat exchanger temperature The system controls the electronic expansion valve openings to obtain the target subcool In heating operation the liquid pipe thermistor is used for liquid pipes isothermal control The system controls the electronic expansion valve opening so that the liquid pipe temperatures in each room becomes equal 61 Control Specification 51051215
131. ection completed The LED indicators 1 2 18 class 1 24 class 1 4 36 class blink one after another B Self correction impossible The LED indicators blink all at the same time Transmission failure occurs at any of the indoor units The indoor heat exchanger thermistor is disconnected An indoor unit is in trouble if a trouble occurs during the wiring error checking B Emergency stop If any of the LED indicators stay on follow the diagnostic procedure Service monitor PCB Wiring error check switch SW3 R22003 Trial Operation and Field Settings 179 Wiring Error Check Function SiUS121502E Details 180 d Note Refrigerant flows from Port A and on The indoor heat exchanger temperatures are detected one by one to check up the matching between the piping and wiring With this function on freezing crackling noise may be heard from the indoor unit This is not a problem This is because the indoor heat exchanger temperature is made to drop below 0 C 32 F in order to increase the detection accuracy The indoor fan turns on or off during wiring checking The results can be checked by looking at the service monitor LED indicators when the wiring error checking is over The LED indicators stop blinking when the ordinary operation starts LED1 Room A wiring LED2 Room B wiring 1st blinking LED Port A piping 2nd blinking LED Port B piping The 1st blinking LED means the room that is co
132. efer to P 170 Check No 14 Refer to P 170 Service Diagnosis Troubleshooting for Outdoor Unit N Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Four way valve coil YES disconnected loose YES Harness disconnected Check the continuity of the four way valve coil and harness Disconnect the harness from the connector Resistance between harnesses about 1000 2000 NO YES Check No 13 Check the four way valve switching output NG OK Any thermistor YES disconnected NO NG Check No 01 Check the thermistors OK Check No 14 NG Check the refrigerant Ten Refrigerant shortage Water mixed OK Stop valve Correct the four way valve coil Reconnect the harness Replace the four way valve coil Replace the outdoor unit PCB main PCB Reconnect the thermistor s Replace the defective thermistor s Refer to the refrigerant line check procedure Replace the four way valve defective or dust clogged R20405 151 Troubleshooting for Outdoor Unit 5105121502 7 12 Discharge Pipe Temperature Control m Error Code Outdoor Unit LED 1 20 30 40 50 Display Method of Error An error is determined with the temperature detected by the discharge pipe thermistor Detection Error Decision
133. efer to Part 3 for Printed Circuit Board Connector Wiring Diagram 213 Revision History Month Year Revised contents 07 2015 SiUS121502E First edition Warning Daikin products are manufactured for export to numerous countries throughout the world Prior to purchase please confirm with your local authorized importer distributor and or retailer whether this product conforms to the applicable standards and is suitable for use in the region where the product will be used This statement does not purport to exclude restrict or modify the application of any local legislation e Ask a qualified installer or contractor to install this product Do not try to install the product yourself Improper installation can result in water or refrigerant leakage electrical shock fire or explosion e Use only those parts and accessories supplied or specified by Ask a qualified installer or contractor to install those parts and accessories Use of unauthorized parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage electrical shock fire or explosion e Read the user s manual carefully before using this product The user s manual provides important safety instructions and warnings Be sure to follow these instructions and warnings If you have any inquiries please contact your local importer distributor and or retailer Cautions on product corrosion 1 Air conditioner
134. en the indoor unit is controlled by an outside controller central remote controller etc it A or b 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 Remote Controller Indoor Unit Multiple Setting Remote Controller Controlled by other air Other condition Display conditioners or devices A Standard All items are displayed ON OFF command and temperature setting command cannot be accepted 1long beep or 3 short beeps emitted b Multiple display Operations set only All the commands can be accepted 2 short beeps displayed shortly after execution Trial Operation and Field Settings 197 Field Settings 5105121502 After Setting Stick the unit No label at the decoration panel air discharge outlet as well as on the back of the wireless remote controller Wireless remote controller Unit No label Decoration panel R12961 1 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 198 Trial Operation and Field Settings 5105121502 Silicon Grease on Power Transistor Diode Bridge 5 Silicon Grease on Power Transistor Diode Bridge Outline Apply the specified silicon grease to the heat radiation part of a power transistor diode bridge when you re
135. enter the standby state will disappear from the LCD When the ON OFF TIMER is up the WEEKLY TIMER will automatically become active Only the time and set temperature with the WEEKLY TIMER are sent with the Set the WEEKLY TIMER only after setting the operation mode the airflow rate and the airflow direction ahead of time Turning off the circuit breaker power failure and other similar events will render operation of the indoor unit s internal clock inaccurate Reset the clock C can be used only for the time and temperature settings It cannot be used to go back to the reservation number Function and Control COOL or AUTO The unit operates at 64 F 18 C even if it is set at 50 F 10 C to 63 F 17 C HEAT or AUTO The unit operates at 86 F 30 C even if it is set at 87 F 31 C to 90 F 32 49 Function of CTXS FTXS CDXS FDXS FVXS Series SiUS121502E Copy mode A reservation made once can be copied to another day of the week The whole reservation of the selected day of the week will be copied 1 program 2 3 program 4 OFF OFF ONES 500 Monday Scr 77 25 _ 8177 27 C gt 6 00 8 30 17 30 22 00 program 1 program 2 m 3 program 4 Tuesday 9 ia TT F 25 C C 81 F 27 C C gt Friday 6 00 8 30 17 30 22 00 Setting Displays 10000 80 8 0 ON Am gt gt nn MON 5 0
136. er FFQ Series 7 Left button 4 Used to highlight the next items on the left hand side Each screen is scrolled in the left hand direction 8 On Off button Press this button and system will start Press this button again to stop the system 9 Operation lamp This lamp illuminates solid green during normal operation This lamp flashes if an error occurs 10 Cancel button Used to return to the previous screen 11 LCD with backlight e The backlight will be illuminated for approximately 30 seconds by pressing any button f two remote controllers are used to control a single indoor unit only the controller accessed first will have backlight functionality 91 FFQ Series 92 SiUS121502E Liquid Crystal Display Three types of display mode Standard Detailed and Simple are available e Standard display is set by default Detailed and Simple displays can be selected in the main menu Standard display 10 Changeover controlled by the master indoor unit 9 Under centralized 8 Scheduled SETBACK 6 A 7 Key Lock Uto 1 Operation mode Set to Cool 74 e coll Heat Oc 2 Fan Speed 6 Ventilation _ _ _ 9 STANDBY This function is not available Standard display example Detailed display 3 Setpoint 4 Stand by for Defrost Hot start 5 Me
137. er starts to beep ON OFF MO TIME UP button DOWN button m eww Li ca RESERVE CANCEL Vt TIMER MODE A SWING Va e E 1 R15411 The upper digit matches No digits match Both upper and lower digits match TEMP 477 TIME CX DOWN 3 FAN RESERVE CANCEL TIMER MODE MODE button R15412 112 Service Diagnosis 5105121502 Service Diagnosis Press the UP or DOWN button and change the error code lower digit until the receiver of the remote controller generates a continuous beep Vi me DICT UP button DOWN button aa i Ic RESERVE CANCEL 10 LU va TIMER Ua ln gt va a weal mw R15413 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 RESERVE CANCEL TIMER MODE button R18821 Service Diagnosis 113 Code Indication on Remote Controller SiUS121502E 4 Code Indication on Remote Controller 4 1 CTXS FTXS CDXS FDXS FVXS Series Error Codes Description Reference Page Normal conditio
138. erter analyzer instead of a compressor Note Make sure the charged voltage of the built in smoothing electrolytic capacitor drops to 10 VDC or below before carrying out the service work 2 Connect the terminals to the terminals of the inverter analyzer 1 Remove the terminals from the compressor Inverter analyzer Be careful not to let the terminals U V W touch each other Otherwise high voltage is applied R18322 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 the power transistor test operation from the outdoor unit 1 Press the forced cooling operation ON OFF switch for 5 seconds Refer to page 178 for the position Power transistor test operation starts Service Diagnosis 171 Check SiUS121502E B Diagnose method Diagnose according to 6 LEDs lighting status 1 If all the LEDs are lit uniformly the compressor is defective Replace the compressor 2 If the LEDs are not lit uniformly check the power module Refer to Check No 22 3 If NG in Check No 22 replace the power module Replace the main PCB The power module IPM1 is united with the main PCB If OK in Check No 22 check if there is
139. festyle 5 conn Remote control adaptor pe fe Convenience non inverter normal open pulse contact option Poomse o Priority room setting normal open contact option COOL HEAT mode lock DIII NET compatible adaptor option ECONO operation 8 Signal receiving sign 77 EX E HOME LEAVE operation R C with back light Temperature display Note Available Not available 2 List of Functions SiUS121502E Functions u u Basic Inverter with inverter power control Health 4 Air purifying filter FCU Operation limit for cooling EZSEZN nn Photocatalytic deodorizing filter tor cooling 708 me emen Air purifying filter with photocatalytic Operation limit for heating CWB BES deodorizing function Operation limit for heating FWB Le Titanium apatite photocatalytic PAM control air purifying filter Swing compressor rere Rotary compressor Wiedeenapand _ Reluctance DO moter J o gt e st N 05 LO N x lt Q O D P gt st LO gt lt e FDXS09 12LVJU FDXS09 12LVJU Wide angle louvers vertical blades 24 hour ON OFF TIMER Auto swing up and down NIGHT SET mode Auto swing right and left Worry Free Auto
140. fin after replacing the outdoor unit PCB Troubleshooting Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Check No 17 Turn off the power Then turn on Refer to P 173 the power to restart the system Check No 19 Refer to P 174 YES YES Has the PCB been Error displayed again replaced Check if silicon grease is applied properly on the radiation fin If not apply NO NO the silicon grease Check the radiation fin temperature NO Above A Replace the outdoor unit PCB main PCB YES Check No 19 Check the outdoor fan NG Replace the outdoor fan motor Correct the connectors and OK fan motor leads the outdoor unit PCB main PCB Check the installation condition Go to Check No 17 Clean up the radiation fin R21935 Radiation fin dirty No YES d Note Refer to Silicon Grease on Power Transistor Diode Bridge on page 199 for detail Service Diagnosis 163 Troubleshooting for Outdoor Unit 5105121502 7 20 Output Overcurrent Detection Ut Error Code L Outdoor UnitLED 1 20 345 40 50 Display Method of Error An output overcurrent is detected by checking the current that flows in the inverter DC section Detection Error Decision A position signal error occurs while the compressor is running Conditions B Arotation speed error occurs while the compress
141. he float switch is OFF in normal operation When cooling operation starts thermostat ON the drain pump turns ON simultaneously After the thermostat turns OFF the drain pump continues to operate for another 5 minutes The aim of residual operation after thermostat OFF is to eliminate the dew that condenses on the indoor heat exchanger during cooling operation 2 1 2 Float Switch is ON with the Thermostat ON in Cooling Operation Float switch OFF Thermostat ON running OFF Error display OFF Drain pump 5 min 5 5 min 5 sec R22380 When the float switch turns ON the thermostat turns OFF simultaneously After the thermostat turns OFF the drain pump continues to operate for another 5 minutes 1 the float switch turns OFF again during the residual operation of the drain pump cooling operation also turns on again thermostat ON 2 f the float switch remains ON even after the residual operation of the drain pump has ended the error code 53 is displayed on the remote controller 3 The drain pump turns OFF once residual operation has ended then turns ON again after 5 seconds 4 After 12 is displayed and the unit comes to an abnormal stop the thermostat will remain OFF even if the float switch turns OFF again 54 Function and Control SiUS121502E Function of FFQ Series 2 1 3 If the Float Switch is ON with the Thermostat OFF in Cooling Operation Thermost
142. he indoor heat exchanger temperature is above 65 149 F Short circuited air Clogged air filter of the indoor unit Dust accumulation on the indoor heat exchanger Defective indoor heat exchanger thermistor Defective indoor unit PCB N Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Check the air passage YES Is there any short circuit Provide sufficient air passage NO Check the air filter ES Clean the air filter NO Check the dust accumulation on the indoor heat exchanger omo ES Clean the indoor heat exchanger NO Check No 01 Check the indoor heat exchanger thermistor As described in the thermistor characteristic chart NO Replace the indoor heat exchanger thermistor YES the indoor unit PCB control PCB R21064 Service Diagnosis SiUS121502E Troubleshooting for CTXS FTXS CDXS FDXS FVXS Series 5 3 Fan Motor or Related Abnormality 5 3 1 DC Motor CTXS FTXS FVXS Series Error Code Method of Error Detection Error Decision Conditions Supposed Causes Service Diagnosis 11 The rotation speed detected by the Hall IC during fan motor operation determines abnormal fan motor operation 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
143. he power supply voltage Match the compatible models Check the combination of all connected models R21922 d Note Refer to Anti icing control for indoor unit on page 142 for detail Service Diagnosis 141 Troubleshooting for Outdoor Unit 5105121502 7 5 Anti icing Control for Indoor Unit Error Code Outdoor Unit LED Display Method of Error Detection Error Decision Conditions Supposed Causes 142 a 3 NE 10 20 30 40 50 During cooling operation indoor unit icing is detected by checking the temperatures sensed by the indoor heat exchanger thermistor and room temperature thermistor that are located in a shut down room In cooling operation the both conditions A and B are met for 5 minutes A Room temperature Indoor heat exchanger temperature gt 10 C 18 F B Indoor heat exchanger temperature x 1 C 30 2 F error repeats the system is shut down Reset condition 3 minute standby is over and the indoor heat exchanger temperature is above 0 C 32 F Wrong wiring or piping Defective electronic expansion valve Short circuited air Defective indoor heat exchanger thermistor Defective room temperature thermistor Service Diagnosis SiUS121502E Troubleshooting Check No 01 Refer to P 166 Check No 12 Refer to P 169 Service Diagnosis Troubleshooting for Outdoor Unit Be sure to turn off power switch before co
144. he rectifier input voltage Check No 15 Check with the inverter analyzer analyzer RSUK0917C Correct the power supply or replace the outdoor unit PCB main PCB Turn off the power and reconnect the harnesses Then turn on the power again and restart operation Compressor running Replace the compressor Replace the outdoor unit PCB main PCB Check the power supply voltage Voltage within the allowable range Power supply voltage 15 Replace the outdoor unit PCB main PCB R22271 159 Troubleshooting for Outdoor Unit 5105121502 7 17 Thermistor or Related Abnormality Outdoor Unit Error Code Outdoor Unit LED Display Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting 160 AL uw LII F3 y Ad 102 20 30 40 50 This fault is identified based on the thermistor input voltage to the microcomputer A thermistor fault is identified based on the temperature sensed by each thermistor B The voltage between the both ends of the thermistor is above 4 96 V or below 0 04 V with the power on gt error is judged if the discharge pipe temperature is lower than the heat exchanger temperature B The system is shut down if all the units are judged as the 22 error B Disconnection of the connector for the thermistor B Thermistor corresponding to the error cod
145. hooting for Outdoor Unit 7 13 High Pressure Control in Cooling Error Code Outdoor Unit LED Display Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting Check No 01 Refer to P 166 Check No 12 Refer to P 169 Check No 17 Refer to P 173 Check No 18 Refer to P 173 Check No 19 Refer to P 174 Service Diagnosis i 10 20 30 40 50 High pressure control operation halt frequency drop etc is activated in cooling operation if the temperature sensed by the outdoor heat exchanger thermistor exceeds the limit The temperature sensed by the outdoor heat exchanger thermistor rises above about 65 C 149 The error is cleared when the temperature drops below about 49 5 121 1 F The installation space is not large enough Dirty outdoor heat exchanger Defective outdoor fan motor Defective stop valve Defective electronic expansion valve or coil Defective outdoor heat exchanger thermistor Defective outdoor unit PCB Be sure to turn off power switch before connecting or disconnecting Caution connectors or parts may be damaged Check the installation space Check No 17 Check the installation condition NG OK Check No 19 Check the outdoor fan NG OK Check No 18 Check the discharge pressure OK NG Check No 12 Check the electronic expansion valve NG OK Chec
146. ing operation 1 When all the indoor units are operating liquid pipe temperature control is conducted 2 SC subcooling control is conducted for the operating indoor units when some of the units are not operating 3 Liquid pipe temperature control for stopped room is conducted for the non operating indoor units Function and Control 73 Control Specification 5105121502 3 13 1 Fully Closing with Power on The electronic expansion valve is initialized when the power is turned on The opening position is set and the pressure equalization is developed 3 13 2 Pressure Equalizing Control When the compressor is stopped the pressure equalizing control is activated The electronic expansion valve opens and develops the pressure equalization 3 13 3 Opening Limit Control Outline The maximum and minimum opening of the electronic expansion valve are limited Detail B Maximum electronic expansion valve opening in the operating room 450 pulse B Minimum electronic expansion valve opening in the operating room 64 pulse The electronic expansion valve is fully closed in a room where cooling operation is stopped and is opened at a fixed degree during defrosting 3 13 4 Starting Operation Control Changing Operation Room The electronic expansion valve opening is controlled when the operation starts and prevents superheating or liquid compression 3 13 5 Control when the Frequency Changes When the target discharge pipe temperature contro
147. is set Remote Controller FFQ Series 89 FFQ Series SiUS121502E 4 2 lt BRC1E72 73 gt Wired Remote Controller 1 Operation mode selector button 11 LCD with backlight WF DAIKIN 4 Up button A 5 Down button V 6 Right button 7 Left button 4 9 Operation lamp 8 On Off button 3 Menu OK button 2 Fan speed control button 90 Remote Controller 5105121502 1 Operation mode selector button Press this button to select the operation mode of your preference Available modes vary with the indoor unit model 2 Fan speed control button Press this button to select the fan speed of your preference Available fan speeds vary with the indoor unit model 3 Menu OK button e Used to enter the main menu Used to enter the selected item 4 Up buttonA Used to raise the setpoint item above the current selection will be highlighted The highlighted items will be scrolled continuously when the button is continuously pressed Used to change the selected item 5 Down button V Used to lower the setpoint item below the current selection will be highlighted The highlighted items will be scrolled continuously when the button is continuously pressed Used to change the selected item 6 Right button Used to highlight the next items on the right hand side Each screen is scrolled in the right hand direction Remote Controll
148. item for which caution must be exercised The pictogram shows the item to which attention must be paid C This symbol indicates the prohibited action The prohibited item or action is shown in the illustration or near the symbol This symbol indicates the action that must be taken or the instruction The instruction is shown in the illustration or near the symbol 11 Warnings and Cautions Regarding Safety of Workers Do not store the equipment in a room with successive fire sources e g naked flame gas appliance electric heater Be sure to disconnect the power 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 do not touch the discharged refrigerant gas The refrigerant gas may cause frostbite When disconnecting the suction or discharge pipe of the compressor at the welded section evacuate the refrigerant gas completely at a well ventilated place first If there is gas remaining inside the compressor the refrigerant gas or refrigerating machine oil discharges when the pipe is disconnected and it may cause injury If the refrigerant gas leaks during the repair work ventilate the a
149. k No 01 Check the outdoor heat exchanger thermistor NG OK Change the installation location or direction Clean the outdoor heat exchanger Replace the outdoor fan motor the connector or fan motor lead wires Replace the stop valve Replace the electronic expansion valve or the coil the outdoor unit PCB main PCB Replace the outdoor heat exchanger thermistor the outdoor unit PCB main PCB R20418 153 Troubleshooting for Outdoor Unit 7 14 Compressor Sensor System Abnormality Error Code Outdoor Unit LED Display Method of Error Detection Error Decision Conditions Supposed Causes 154 Cn Ad 10220 30 40 50 SiUS121502E B The system checks the power supply voltage and the DC voltage before the compressor starts The system checks the DC current of the compressor right after the compressor starts Power Module DC voltage DC current Compressor R22001 B The power supply voltage and the DC voltage is obviously low or high The DC current of the compressor does not flow when the compressor starts Disconnection of reactor Disconnection of compressor harness Defective outdoor unit PCB Defective compressor Service Diagnosis SiUS121502E Troubleshooting for Outdoor Unit Troubleshooting Service Diagnosis N Be sure to turn off the power switch before connecting or disconnecting C
150. l is active if the target frequency is changed to a specified value in a certain time period the target discharge pipe temperature control is canceled and the target opening of the electronic expansion valve is changed 3 13 6 Oil Recovery Function Outline The electronic expansion valve opening in the cooling stopped room is set as to open for a certain time at a specified interval so that the oil in the cooling stopped room may not be accumulated Detail During cooling operation every 1 hour continuous operation the electronic expansion valves in the operation stopped room is opened by 80 pulses for specified time 3 13 7 High Discharge Pipe Temperature Control 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 74 Function and Control SiUS121502E Control Specification 3 13 8 Discharge Pipe Thermistor Disconnection Control Outline Detail The disconnection of the discharge pipe thermistor is detected by comparing the discharge pipe temperature with the condensing temperature If the discharge pipe thermistor is disconnected the electronic expansion valve opens according to the outdoor temperature and the operation frequency operates for a specified time and then stops After 3 minutes the operation restarts and checks if the discharge pipe ther
151. louvers made of elastic synthetic resin provide a wide range of airflow that guarantees a comfortable air distribution The following table explains the auto swing process for cooling dry heating and fan CTXS FTXS Series Flap up and down Louver Lum ight and 07 09 12 class o i 45 55 R11404 R13527 811402 15 18 24 class 25 Sr 70 Sh 75 R9304 40 75 R9305 Function and Control SiUS121502E 3 D Airflow COMFORT AIRFLOW Operation Function and Control Function of CTXS FTXS CDXS FDXS FVXS Series FVXS Series Flap up and down Cooling Dry Upward airflow limit R6829 airflow limit R6832 R6830 CTXS FTXS Series Alternative repetition of vertical and horizontal swing motions enables uniform air conditioning of the entire room When the horizontal swing and vertical swing are both set to automatic operation the airflow becomes 3 D airflow The horizontal and vertical swing motions are alternated and the airflow direction changes in the order shown in the following diagram 1 The louvers move from the right to the left 2 The flaps move downward 3 4 3 The louvers move from the left to the right 4 The flaps move upward 4 1 2 819554 CTXS FTXS Series The flaps are controlled not to blow the air directly at the people in the room 15 18 24 class 37 Function of CTXS FTXS CDXS FDXS FVXS Se
152. low selection Refer to page 38 for detail SW4 S27 9 xu wj M _ SW2 4 3P191448 1 Connector for control PCB Forced cooling operation ON OFF button LED for operation green LED for timer yellow ap 4i DISPLAY D 547 3 191447 1 LED3 does not function d Note The symbols in the parenthesis are the names on the appropriate wiring diagram Printed Circuit Board Connector Wiring Diagram 25 Indoor Unit SiUS121502E 1 5 FFQO09 12 15 18LVJU Control PCB 26 X20A 1 X5A Connector for terminal board for wired remote controller 2 X10A 11 Connector for transformer 3 X15A Connector for float switch 4 X17A X18A Connector for indoor heat exchanger 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 swing motor 13 X40A Connector for ON OFF input from outside option 14 HAP LED for service monitor green 15 SS1 Selector switch for emergency 27 X11A X10A X19A ey nel 8 8 S nas dier d3U9 e08C 38
153. lso when the room temperature is in the zone B for 10 minutes Function and Control SiUS121502E Function of CTXS FTXS CDXS FDXS FVXS Series 1 6 Automatic Operation Outline Detail Function and Control Automatic Cooling Heating Function When the automatic operation is selected with the remote controller the microcomputer automatically determines the operation mode as cooling or heating according to the room temperature and the set temperature at start up The unit automatically switches the operation mode to maintain the room temperature at the set temperature Ts set temperature set by remote controller Tt target temperature determined by microcomputer Tr room thermistor temperature detected by room temperature thermistor C correction value 1 The set temperature Ts determines the target temperature Tt Ts 18 30 C 64 4 86 F 2 he target temperature Tt is calculated as Tt C where C is the correction value C 0 C 096 3 hermostat ON OFF point and operation mode switching point are as follows 1 Heating Cooling switching point Tr gt Tt 3 0 C 5 4 F CTXS FTXS series Tr gt Tt 2 5 C 4 5 F CDXS FDXS FVXS series 2 Cooling Heating switching point Tr lt Tt 3 0 C 5 4 F 3 Thermostat ON OFF point is the same as the ON OFF point of cooling or heating operation 4 During initial operation Tr gt Ts Cooling operation Tr lt Ts He
154. maged Refer to P 166 Discharge pipe thermistor disconnected YES Check No 12 Refer to P 169 NO Check No 01 NG Check No 13 Discharge pipe thermistor Refer to P 170 OK Connectors are NO 2 14 propery connected Connector S40 Refer to P 170 2 terminals of OL Q1L YES Disconnect the connector S40 from the PCB Check the resistance between the 2 terminals on connector S40 Resistance Disconnect the 2 terminals of the OL Q1L Check the Hesistance resistance between the 2 terminals of the OL Q1L Nearly 0 Q Nearly 0 Q Check No 12 Check the electronic expansion valve NG OK Check No 13 NG Check the four way valve OK Check No 14 Check the refrigerant line NG Refrigerant shortage Water mixed Stop valve OK d Note OL Q1L activating temperature 130 C 266 F OL recovery temperature 95 203 146 Insert the thermistor in position the discharge pipe thermistor Connect the connectors properly Replace the OL Q1L Replace the OL harness Heplace the electronic expansion valve or the coil Replace the four way valve or the coil Heplace the outdoor unit PCB main PCB Refer to the refrigerant line check procedure the outdoor unit PCB main PCB R
155. mes 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 ON Room thermistor temperature target temperature Cooling 0 5 0 9 Dry 0 5 C 0 9 Zone C 1 5 C 2 7 F Zone Cooling 2 0 C 3 6 Zone A Dry 2 5 2 0 C 4 5 8 6 F OFF R22426 lt Heating gt CTXS FTXS series OFF Room thermistor temperature target temperature Zone A 2 0 3 6 Zone B 1 5 C 2 7 Zone C 0 5 0 9 ON R22427 CDXS FDXS FVXS series OFF Room thermistor temperature target temperature Zone A Le C27 PF Zone B 1 0 C 1 8 F Zone C R22428 Refer to Temperature Control on page 34 for detail 42 Function and Control SiUS121502E Function of CTXS FTXS CDXS FDXS FVXS Series 1 8 NIGHT SET Mode Outline Detail 1 9 Outline Detail When the OFF TIMER is set NIGHT SET Mode is automatically activated NIGHT SET Mode keeps the airflow rate setting NIGHT SET Mode continues operation at the target temperature for the first one hour then automatically raises the target temperature slightly in cooling or lowers it slightly in heating This prevents excessive cooling or heating to ensure comfortable sleeping conditions and also conserves electricity l
156. mistor is disconnected If the discharge pipe thermistor is disconnected the system stops after operating for a specified time If the disconnection is detected repeatedly the system is shut down When the compressor runs for 60 minutes without any error the error counter is reset Determining thermistor disconnection When the starting control 660 690 seconds depending on the model finishes the following adjustment is made 1 When the operation mode is cooling When the following condition is fulfilled the discharge pipe thermistor disconnection is ascertained Discharge pipe temperature 6 C 10 8 F outdoor heat exchanger temperature 2 When the operation mode is heating When the following condition is fulfilled the discharge pipe thermistor disconnection is ascertained Discharge pipe temperature 6 C 10 8 F lt highest indoor heat exchanger temperature When the thermistor is disconnected When the disconnection is ascertained the compressor continues operation for 9 minutes and then stops 3 13 9 Gas Pipe Isothermal Control During Cooling Function and Control When the units are operating in multiple rooms the gas pipe temperature is detected and the electronic expansion valve opening is adjusted so that the temperature of the gas pipe in each room becomes equal When the gas pipe temperature gt the average gas pipe temperature the opening degree of electronic expansion valve in the corresponding room incr
157. model the system shuts down the compressor OL compressor head temperature exceeds 130 C 266 F the compressor stops 3 14 3 Refrigerant Shortage Control Outline If the power consumption is below the specified value and the frequency is higher than the specified frequency it is regarded as refrigerant shortage The power consumption is low comparing with that in the normal operation when refrigerant is insufficient and refrigerant shortage is detected by checking power consumption Refrigerant shortage zone c o o L o 5 40 54 2 Frequency depending on the model R21927 Refer to Refrigerant shortage on page 136 for detail 3 14 4 Anti icing Function During cooling if the indoor heat exchanger temperature in the operation stopped room drops below the specified temperature for a 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 longer than a specified time the system is shut down Function and Control 77 78 adt odd rm SiUS121502E Part 5 Remote Controller GP Cc 79 B 5 SOMOS TETTE a 81 mb S OTOS T T TT 83 Me 85 4 1 lt BRC1E71 gt Wired Remote Controller eene 8
158. mp green R21930 BRC1E71 72 73 DAIKIN The error or warning message also blinks on the basic screen R18816 BRC7E830 In case of wireless remote controller a signal receiver PCB and a display PCB are installed on indoor unit When the error occurs the operation lamp on the display PCB blinks 100 Service Diagnosis SiUS121502E Caution Service Monitor Troubleshooting with LED When operation stops suddenly and the operation lamp blinks it could be operation mode conflict 1 Check if the operation modes all the same for the indoor units connected to multi system outdoor unit 2 If not set all the indoor units to the same operation mode and confirm that the operation lamp is not blinking 3 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 the indoor unit that has a different operation mode set later The first set operation mode has priority The indoor unit has a green LED LED A or HAP on the control PCB When the microcomputer works in order the LED blinks Refer to page 18 20 22 24 26 for the location of LED 2 2 Outdoor Unit Service Diagnosis The outdoor unit has a green LED LED A and red LEDs LED 1 LED 5 on the PCB
159. n Indoor unit PCB abnormality Freeze up protection control heating peak cut control Fan motor or related DC motor CTXS FTXS FVXS series abnormality AC motor CDXS FDXS series 4 2 FFQ Series Description Normal condition Indoor unit PCB abnormality Drain level control system abnormality Fan motor AC motor or related abnormality See the Note below Signal transmission error between indoor unit and remote 133 controller Signal transmission error between MAIN remote controller and 134 SUB remote controller Error code displays automatically and system stops Inspect and solve the error In the case of the shaded error codes inspection is not displayed The system operates but be sure to inspect and solve the error d Note When there is a possibility of open phase power supply also check power supply 114 Service Diagnosis SiUS121502E Code Indication on Remote Controller 4 3 Outdoor Unit ON OFF Blinks Outdoor Unit LED Indication rror NT Reference Eme Red 6 Description m LI NAMEN NEN Semma Note 1 The error codes in the parenthesis are displayed only when the system is shut down 2 When a sensor error occurs check the remote controller display to determine which sensor is malfunctioning If the remote controller does not indicate the error code conduct the following procedure Turn the power off and then on again If
160. n indicates that the air purifying unit option in operation 7 display e Displayed when the key lock is set 8 display e Displayed if the Schedule or Off timer is enabled 9 Under Centralized control e Displayed if the system is under the management of a multi zone controller option and the operation of the system through the remote controller is limited 10 Changeover controlled by the master indoor unit VRV only e Displayed when another indoor unit on the system has the authority to change the operation mode between cool and heat Remote Controller 5105121502 11 Setback te e The setback icon flashes when the unit is turned on under the setback control 12 Air Flow Direction 2 e Displayed when the air flow direction and swing are set e f the connected indoor unit model does not include oscillating louvers this item will not be displayed 13 Current Day Time 12 24 hour time display e Displayed if the clock is set e f the clock is not set will be displayed e 12 hour time format is displayed by default e Select 12 24 hour time display option in the main menu under Clock amp Calendar 14 Detailed selection e Displayed if the detailed display item is selected Detailed items not selected by default 15 display e Displayed when the clock needs to be set e he schedule function will not work unless the clock
161. n the outdoor temperature is 2 C 35 6 F Comfortable air conditioning A fine adjustment is integrated to keep the room temperature constant Energy saving heating and cooling Once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power 35 Function of CTXS FTXS CDXS FDXS FVXS Series Frequency Limits Forced Cooling Operation 5105121502 The following functions regulate the minimum and maximum frequency Frequency B Four way valve operation compensation Refer to page 65 Compressor protection function Refer to page 66 B Discharge pipe temperature control Refer to page 66 B Input current control Refer to page 67 B Freeze up protection control Refer to page 68 B Heating peak cut control Refer to page 68 B Defrost control Refer to page 70 Refer to page 178 for detail 1 3 Airflow Direction Control CTXS FTXS FVXS Series Power Airflow Dual Flaps Wide Angle Louvers Auto Swing 36 The large flap sends a large volume of air downward to the floor and provides an optimum control in cooling dry and heating operation Cooling Dry During cooling or dry operation the flap retracts into the indoor unit Then cool air can be blown far and distributed all over the room Heating During heating operation the large flap directs airflow downward to spread the warm air to the entire room The
162. ncy upper limit based on the input current In case of heat pump models this control is the upper limit control of frequency and takes priority over the lower limit control of four way valve operation compensation Compressor Stop Stop Zone Dropping Zone Keep Zone Input current Reset Zone R14643 Frequency control in each zone Stop zone After 2 5 seconds in this zone the compressor is stopped Dropping zone The upper limit of the compressor frequency is defined as operation frequency 2 Hz After this the output frequency is lowered by 2 Hz every second until it reaches the keep zone Keep zone The present maximum frequency goes on Reset zone Limit of the frequency is canceled Uude 0 Limitation of current dropping and stop value according the outdoor temperature The current drops when outdoor temperature becomes higher than a certain level depending on the model 67 Control Specification SiUS121502E 3 Freeze up Protection Control Outline During cooling operation the signals sent from the indoor units control the operating frequency limitation and prevent freezing of the indoor heat exchanger The signals from the indoor units are divided into zones Detail The operating frequency limitation is judged with the indoor heat exchanger temperature 2 seconds after operation starts and 30 seconds after the number of operation room is cha
163. ng control using the discharge pipe temperature The target discharge pipe temperature is set as to become SC Subcool the aim SH a The inclination does not change depending on the operating condition SH Superheat 718951 The electronic expansion valve opening and the target discharge pipe temperature are adjusted every 20 seconds The target discharge pipe temperature is controlled by indoor heat exchanger temperature and outdoor heat exchanger temperature The opening degree of the electronic expansion valve is controlled by the followings Target discharge pipe temperature Actual discharge pipe temperature Previous discharge pipe temperature Function and Control SiUS121502E Control Specification 3 14 Malfunctions 3 14 1 Sensor Malfunction Detection Sensor malfunction may occur either in the thermistor or current transformer CT system Relating to Thermistor Malfunction Outdoor heat exchanger thermistor Discharge pipe thermistor Radiation fin thermistor Gas pipe thermistor Outdoor temperature thermistor Liquid pipe thermistor Oa Relating to CT Malfunction Refer to CT or related abnormality on page 158 for detail 3 14 2 Detection of Overcurrent and Overload Outline In order to protect the inverter an excessive output current is detected and the OL temperature is observed to protect the compressor Detail B If the inverter current exceeds 13 0 18 5 A depending on the
164. ng gt In heating operation the fan speed is regulated according to the indoor heat exchanger temperature and the difference between the room thermistor temperature and the target temperature The fan stops during defrost operation CTXS FTXS Series B The fan speed is controlled automatically within the following steps lt Cooling gt L tap MH tap same as AUTOMATIC lt Heating gt ML tap MH tap B The latest command has the priority between POWERFUL and COMFORT AIRFLOW 39 Function of CTXS FTXS CDXS FDXS FVXS Series SiUS121502E 1 5 Program Dry Operation Outline Detail 40 Program dry operation removes humidity while preventing the room temperature from lowering Since the microcomputer controls both the temperature and airflow rate the temperature adjustment and FAN setting buttons are inoperable 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 an appropriate capacity for each zone to maintain the temperature and humidity at a comfortable level Zone C Thermostat ON 0 5 0 9 Zone A Thermostat OFF R11587 24 C or more 75 2 F or more Room thermistor 18 235 C temperature at start up 64 4 74 3 F 17 5 C or less X 0 5 C 17 5 C 63 5 F or less X 0 9 F 63 5 F Thermostat turns on a
165. nged Indoor heat exchanger Reference thermistor temperature 139 Qbbd F 5 55 lt 5254 345542 4 zone 7 C 44 6 5 C 41 F Keep zone 37 4 F Dropping zone 32 F Stop zone R17362 3 8 Heating Peak cut Control Outline During heating operation the indoor heat exchanger temperature determines the frequency upper limit to prevent abnormal high pressure Detail B The operating frequency is judged with the indoor heat exchanger temperature 2 minutes after the operation starts and F seconds after the number of operation room is changed The maximum value of the indoor heat exchanger temperature controls the following excluding stopped rooms Stop zone Dropping zone Keep zone Indoor heat exchanger zone thermistor temperature R14665 A 65 149 F F seconds B 5592 131 F 54 C 129 2 F D 52 C 125 6 F 50 C 122 F Control 68 Function and Control 5105121502 Control Specification 3 9 Outdoor Fan Control 1 Fan ON control to cool down the electrical box The outdoor fan is turned ON when the electrical box temperature is high while the compressor is OFF 2 Fan OFF control during defrosting The outdoor fan is turned OFF while defrosting 3 Fan OFF delay when stopped The outdoor fan is turned OFF 60 seconds after the compressor stops 4 Fan speed control for pressure difference upkeep The
166. nnected with Port A The 2nd blinking LED means the one connected with Port B Ex Suppose the LED indicators are blinking as follows L 12345 D Green Red 12345 D Green Red L A12 345 E D Green Red R22004 The above means that Port A is connected with Room B and Port B with Room A or self corrected this way Indoor unit Outdoor unit Wiring Wiring Piping R22274 Wrongly connected liquid and gas pipes cannot be self corrected Be sure to make the liquid pipe and the gas pipe in pairs To cancel the wiring error check procedure halfway press the wiring error check switch again In this case the memory of the microcomputer returns to its initial status Room A wiring Port A piping Room B wiring Port B piping When replacing the outdoor unit PCB be sure to use this function Make the priority room setting after wiring error check If you set the priority room before wiring error check the prioritized room may be changed after self correction Trial Operation and Field Settings SiUS121502E Trial Operation 3 Trial Operation 31 CTXS FTXS CDXS FDXS FVXS Series Outline Carry out the trial operation in accordance with the operation manual to ensure that all functions and parts such as flap movement are working properly Trial operation should be carried out in either cooling or heating operation Detail 1 Measure the p
167. nnecting or disconnecting Caution connectors or parts may be damaged Check the wiring and piping Wrong wiring or piping Check No 12 Check the electronic expansion valve NO YES Check No 01 Check the outdoor heat exchanger thermistor As described in the thermistor characteristic chart YES NO Check No 01 Check the room temperature thermistor As described in the thermistor characteristic chart YES Change the refrigerant to remove moisture from the piping after drawing a vacuum NO Error again YES YES Activate the wiring error check function Replace the electronic expansion valve or coil Replace the outdoor heat exchanger thermistor Replace the room temperature thermistor Replace the indoor unit PCB control PCB and then start the wiring error check function Replace the room temperature thermistor or indoor heat exchanger thermistor Do the vacuum drying R21923 143 Troubleshooting for Outdoor Unit SiUS121502E 7 6 Outdoor Unit PCB Abnormality I gt ar Error Code Outdoor Unit LED AD 112 212 30 40 50 Display Method of Error Detect within the program of the microcomputer Detection Error Decision The program of the microcomputer is in abnormal running order Conditions Supposed Defective outdoor unit PCB Causes Noise Momentary drop of voltage Momentary power failure
168. old battery to prevent children from swallowing it If a child swallows the coin battery see a doctor immediately SiUS121502E For unitary type only For unitary type 5105121502 Safety Cautions 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 unit it may cause a fire Check to see if the parts and wires are mounted and connected properly and if the connections at the soldered or crimped terminals are secure Improper installation and connections may cause excessive heat generation fire or an electrical shock If the installation platform or frame has corroded replace it Corroded installation platform or frame may cause the unit to fall resulting in injury Check the earth grounding and repair it if the equipment is not properly earthed grounded Improper earth grounding may cause an electrical shock Be sure to measure the insulation resistance after the repair and make sure that the resistance is 1 or higher Faulty insulation may cause an electrical shock Be sure to check the drainage of the indoor unit after the repair Faulty drainage may cause the water to enter the room and wet the furniture and floor Do not tilt the unit when removing it The water
169. ollowing codes can be checked Error codes indoor model code Test operation mode Thermostat is forcibly turned on Press the INSPECTION TEST button once R15367 Service Check To find the error code proceed as follows Function Press the INSPECTION TEST button to enter the inspection mode Then the figure Z blinks on the UNIT No display INSPECTION TEST button R14392 110 Service Diagnosis 5105121502 Service Diagnosis Press the UP or DOWN button and change the UNIT No until the receiver of the remote controller starts to beep DON OFF vow TIME UP button Z DOWN button P DOWN 2 FAN 1 4 1 RESERVE CANCEL TIMER MODE A SWING EB lt 815408 if you hear 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 confirmed 1 continuous beep There is no abnormality Press the MODE button The left 2 upper digit indication of the error code blinks ON OFF TIME RESERVE CANCEL TIMER MODE MODE button SWING H lt TEST R15410 Service Diagnosis 111 Service Diagnosis SiUS121502E Press the UP or DOWN button to change the error code upper digit until the receiver of the remote controll
170. om the frequency previously calculated 2 control If the operating frequency does not change for more than a certain fixed time the frequency is adjusted according to the XAD value When the value is low the frequency is lowered When the value is high the frequency is increased 3 Limit of frequency increasing range When the difference between the input current and the dropping value of the input current is less than 1 5 A the frequency increasing range must be limited 4 Frequency control when other controls are functioning When frequency is dropping Frequency control is carried out only when the frequency drops For limiting lower limit Frequency control is carried out only when the frequency rises 5 Upper and lower limit of frequency by PI control The frequency upper and lower limits are set according to the total of S values When the indoor unit quiet operation commands come from more than one room or when the outdoor unit quiet operation commands come from all the rooms the upper limit frequency is lower than the usual setting Function and Control 5105121502 Control Specification 3 4 Controls at Mode Changing Start up 3 4 1 Preheating Control Outline The inverter operation in open phase starts with the conditions of the outdoor temperature and the preheating command from the indoor unit Detail ON Condition When the outdoor temperature is below 20 C 68 F the inverter operation
171. on Fin Temperature Rise 163 7 20 Output Overcurrent Detection 164 xe ip MM ER dM MI CU 166 8 1 Thermistor Resistance Check 166 8 2 Indoor Fan Motor Connector 167 ag qu TM 167 8 4 Power Supply Waveform 168 8 5 Electronic Expansion Valve 169 8 6 Four Way Valve Performance 170 8 7 Inverter Unit Refrigerant System 170 8 8 Inverter Analyzer 171 8 9 Rotation Pulse Check on the Outdoor Unit PCB 172 8 10 Installation Condition 173 8 11 Discharge Pressure 173 8 12 Outdoor Fan System 174 8 13 Main Circuit CHECK au i 174 8 14 Capacitor Voltage 175 IV SiUS121502E 8 15 Power Module Check 176 Part 7 Trial Operation and Field Settings 177 1 Pump DOWN decina 178 2 WIRING Error check FUN CHON acess t assets Deae sees 179 92 N 181 3 1 5 FTXS CDXS FDXS FVXS Series
172. on limit for heating CWB ES deodorizing function Operation limit for heating CFWB Titanium apatite photocatalytic PAM control air purifying filter Swing compressor rere Rotary compressor SiC at panel e Reluctance DO motor dC Washablegrile _ a Li gt c hag qi 5 gt lt gt L D gt Z CO qi O gt lt gt L Wide angle louvers vertical bades 24 Auto swing ypanddown e MGHTSETmode Jo Auto swing right and left Worry Free Auto restart after power failure Mya COMFORT AIRFLOW operation Comfort Auto fan speed _________ Anti corrosion treatment of outdoor heat A Flexible power supply corespondence INTELLIGENT EYE operation High ceing Quick warningtunetion Either side dain Automatic detosing Powersin Operation Automatic operation F C changeover R C temperature display Program dry function factory setting F Control 5 room centralized controller option Hemote control adaptor normal open pulse contact option Lifestyle New POWERFUL operation Convenience non inverter Inverter POWERFUL operation Priority room setting
173. operation the gas pipe thermistor is used for gas pipe isothermal control The system Thermistor controls electronic expansion valve opening so that the gas pipe temperature in each room becomes equal 60 Function and Control SiUS121502E 4 Indoor Heat Exchanger Thermistor 5 Liquid Pipe Thermistor Function and Control Control Specification The indoor heat exchanger thermistor is used for controlling the target discharge pipe temperature The system sets the target discharge pipe temperature according to the outdoor and indoor heat exchanger temperature and controls the electronic expansion valve opening so that the target discharge pipe temperature can be obtained In cooling operation the indoor heat exchanger thermistor is used for freeze up protection control If the indoor heat exchanger temperature drops abnormally the operating frequency becomes lower or the operation halts In cooling operation the indoor heat exchanger thermistor is used for anti icing function If any of the following conditions are met in the room where operation halts it is assumed as icing The conditions are lt 1 C 30 2 F Ta gt 10 C 18 F where Ta is the room temperature and Tc is the indoor heat exchanger temperature In heating operation the indoor heat exchanger thermistor is used for heating peak cut control If the indoor heat exchanger temperature rises abnormally the operating frequency b
174. or fan system is functioning 8 13 Main Circuit Short Check Check No 20 Check to make sure that the voltage between and of the diode bridge DB1 is about V before checking Fan motor lead wire connector disconnected YES the connector NO Go to Check No 16 R21195 B Measure the resistance between the pins of the DB1 referring to the table below B lf the resistance is or less than 1 short circuit occurs on the main circuit Positive terminal of digital Negative terminal of digital Resistance is OK several several 18 T ARS toe ba 5 1 1 h 249x208 lt gt 22 Multimeter R21937 174 Service Diagnosis SiUS121502E Check 8 14 Capacitor Voltage Check Check No 21 Before this check be sure to check the main circuit for short circuit With the circuit breaker still on measure the voltage according to the drawing of the model in question Be careful never to touch any live parts Multimeter DC voltage range R21938 B prevent an electrical shock use a multimeter to check that the voltage between FU2 and DC is 50 V or less B The surface of the test points DC may be covered with the coating Be sure to make firm contact between the multimeter probes and the test points Multimeter probe Y FU2 DC Coating PCB
175. or is running B An output overcurrent signal is fed from the output overcurrent detection circuit to the microcomputer error repeats the system is shut down B Reset condition Continuous run for about 5 minutes without any other error Supposed Poor installation condition Causes Closed stop valve Defective power module Wrong internal wiring Abnormal power supply voltage Defective outdoor unit PCB Supply voltage is not as specified Defective compressor 164 Service Diagnosis SiUS121502E Troubleshooting Check No 15 Refer to P 171 Check No 17 Refer to P 173 Check No 18 Refer to P 173 Check No 22 Refer to P 176 Service Diagnosis Troubleshooting for Outdoor Unit Be sure to turn off power switch before connecting disconnecting Caution connectors or parts may be damaged An output overcurrent may result from wrong internal wiring If the system is interrupted by an output overcurrent after the wires have been disconnected and reconnected for part replacement check the wiring again Check No 17 Check the installation condition Stop valve fully open Fully open the stop valve Turn off the power Then turn on the power to restart the system See if the same error occurs YES Possible causes Momentary drop of power supply NO Monitor the power supply voltage discharge and suction pressures and other factors for a long term Turn off the power
176. or stop EMERGENCY OPERATION SWITCH H DISPLAY FAN SPEED DISPLAY AIRFLOW FLAP This switch is readily used if the remote controller does not work The display shows the set fan speed OPERATION When the INSPECTION TEST button is pressed the display shows the system runs It flashes when the unit is in trouble mode is in AIR FILTER CLEANING TIME INDICATOR LAMP Red Lights up when it is time to clean the air filter DEFROST LAMP Orange Lights up when the defrosting operation has started Press the button and the system will start Press the button again and the system will stop FAN BUTTON Press this button to select the fan speed HIGH or LOW of your choice TEMPERATURE SETTING BUTTON Use this button for setting temperature Operates with the front cover of the remote controller closed 96 Remote Controller SiUS121502E Service Diagnosis Part 6 Service Diagnosis General Problem Symptoms and Check ltems 99 droublesnooting WRIT e aa Poe cud 100 21 sorore tia Mec a 100 esaet 101 102 3 1 CTXS FTXS CDXS FDXS FVXS Series 102 PROCI T 108 Code Indication on Remote
177. ove the thermistor and measure the resistance 166 Service Diagnosis SiUS121502E Check 8 2 Indoor Fan Motor Connector Check Check No 02 CTXS FTXS FVXS Series Check the connection of connector Check motor power supply voltage output pins 4 7 Check motor control voltage pins 4 3 Check rotation command voltage output pins 4 2 Check rotation pulse input pins 4 1 IN I A Motor power supply voltage 310 340 VDC Unused Unused GND Motor control voltage 15 VDC Rotation command voltage 1 6 5 VDC Rotation pulse input OOOOO0odo R19654 8 3 Hall IC Check Check No 04 CDXS FDXS Series 1 Check the connector connection 2 With the power on operation off and the connector connected check the following 1 Output voltage of about 5 V between pins 1 and 3 2 Generation of 3 pulses between pins 2 and 3 when the indoor fan motor is operating If NG in step 1 gt Defective PCB gt Replace the PCB control PCB If NG in step 2 Defective Hall IC gt Replace the indoor fan motor If OK in both steps 1 and 2 gt the PCB control PCB 57 1 Gray power supply 2 Purple signals 3 Blue grounding R14211 Service Diagnosis 167 Check SiUS121502E 8 4 Power Supply Waveform Check Check 11 Measure the power supply waveform between No 1 and No 2 on the terminal board and check the waveform disturbance B Check if the power supply
178. ower supply voltage and make sure that it falls within the specified range 2 In cooling operation select the lowest programmable temperature 18 C 64 F in heating operation select the highest programmable temperature 30 86 F Trial operation may be disabled in either operation mode depending on the room temperature After trial operation is complete set the temperature to a normal level 26 28 C 78 82 F in cooling 20 24 C 68 75 F in heating For protection the system does not start for 3 minutes after it is turned off ARC452 Series 1 Press the ON OFF button to turn on the system 2 Press both of the TEMP buttons and the MODE button at the same time 3 Press the MODE button twice appears on the display to indicate that trial operation is selected 4 Press the MODE button and select the operation mode 5 Trial operation terminates in approximately 30 minutes and switches into normal mode To quit trial operation press the ON OFF button WP DAIKIN 3 Trial Operation and Field Settings 181 Trial Operation 182 SiUS121502E ARC466 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 Select 1 trial operation with the Temp or Temp V button 4 Press the Mode button to start the trial operation 5 Press the Mode button and select operation mode 6 Trial operation
179. p protection Feedback Control Target discharge pipe temperature control Function and Control SiUS121502E Control Specification Detail The followings are the examples of electronic expansion valve control which function in each operation mode Operation pattern When power is turned on c o O 23 T G Available Not available as pipe isothermal control C subcooling control recovery control ndoor freeze up protection control iqui Liquid pipe temperature control for non operating units Control for abnormally high discharge pipe temperature Dew prevention control for indoor rotor Control when the frequency changes Fully closed when power is turned on Open control when starting Control of target discharge pipe temperature Cooling 2 rooms operation to Control when the operating room is Cooling 4 rooms operation changed Control of target discharge pipe temperature Pressure equalizing control Heating 1 room operation Open control when starting Control of target discharge pipe temperature Heating 2 rooms operation Control when the operating room is changed Cooling 1 room operation Control of target discharge pipe temperature Defrost control Pressure equalizing control Open control when starting Discharge pipe thermistor disconnection control Continue dd R21181 Heat
180. place an outdoor unit PCB The silicon grease encourages the heat radiation of a power transistor diode bridge Detail Wipe off the old silicon grease completely Apply the silicon grease evenly See the illustrations below for examples of application Tighten the screws of the power transistor diode bridge Make sure that the heat radiation parts are firmly contacted to the radiation fin W N gt Note Smoke emission may be caused by bad heat radiation when the silicon grease is not appropriately applied B Evenly applied Power transistor or diode bridge PEE Radiation fin Silicon grease R21865 B NG Not evenly applied E lt 821866 B NG Foreign matter is stuck OCC V y Foreign matter R21867 Trial Operation and Field Settings 199 200 SiUS121502E Part 8 Appendix EE EI 201 201 eZ 204 2 Wild etude cade 206 2 4 206 22 UTE 211 SiUS121502E 1 Piping Diagrams 1 1 Indoor Unit CTXSO7LVJU FTXS09 12LVJU FIELD PIPING 1 4 CuT FIELD PIPING 3 8 CuT FTXS24LVJU FIEL
181. r can be used Range in which body thermostat sensor can be used B Assuming the set temperature in the figure above is 2 EL NU 4 rede ride dide LA OD 28 30 32 34 C 82 4 86 0 89 6 93 2 oF Suction temperature TH1 E Differential R18812 4 C 75 2 F and the suction temperature has changed from 18 C 64 4 F to 28 C 82 4 F A D This example also assumes there are several other air condi changes even when the thermostat sensor is off tioners and the suction temperature 18 25 C 64 4 77 F gt Body thermostat sensor is used 25 28 C 77 82 4 F C gt D Remote controller thermostat sensor is used B Assuming suction temperature has changed from 28 C 82 4 F to 18 C 64 4 F D A 28 23 C 82 4 73 4 F D B Remote controller thermostat sensor is used 23 18 C 73 4 64 4 F B Body thermostat sensor is used 57 Function of FFQ Series SiUS121502E 2 3 Freeze Prevention Control Outline Detail 58 When the temperature detected by liquid pipe thermistor R2T of the indoor heat exchanger drops too low the unit enters freeze prevention control in accordance with the following conditions and is also set in accordance with the conditions given below Conditions for starting Liquid pipe temperature x 1 C 30 2 F for total of 40 minutes Or
182. rature 1 Press 2 The day of the week and the reservation number of the current day will be displayed to 4 settings can be made per day 2 Press to select the desired day of the week and reservation number Pressing changes the reservation number and the day of the week 3 Press 5 The day of the week and reservation number will be set and ON blink 4 Press to select the desired mode Pressing changes the ON OFF setting in sequence ON gt lore na Select ON TIMER OFFTIMER No Setting Pressing puts the sequence in reverse In case the reservation has already been set selecting blank deletes the reservation Proceed to STEP Q if blank is selected e To return to the day of the week and reservation number setting press 5 Press E e The ON OFF TIMER mode will be set and the time blink Function and Control SiUS121502E Function of CTXS FTXS CDXS FDXS FVXS Series 6 Press to select the desired time v time can be set between 0 00 and 23 50 10 minute intervals Back To return to the ON OFF mode setting press Proceed to STEP 9 when setting the OFF TIMER D e The time will be set and the temperature blink 8 Press to select the desired temperature v e The temperature be set between 50 F 10 C and 90 F 32
183. re test operation Turn on the power supply more than 6 hours before test operation 2 Open the gas stop valve _ How to activate test operation Press and hold the Cancel button for 4 seconds to enter the Service Settings menu Test Operation is displayed on the bottom of the basic screen Coo Sul Test Operation R18828 Use the wa buttons to select Test Operation and push the Menu OK button 1 3 Maintenance Contact Field Settings Energy Saving ptions Prohibit Function Min Setpoints Differential R18827 Push the On Off button within 10 seconds to start the test operation Trial Operation and Field Settings 183 Trial Operation BRC7E830 184 SiUS121502E Step Acin 7 Remote controller How to check airflow direction Push the Menu OK button to enter the Main Menu Use the VA buttons to select Airflow Direction and push the Menu OK button Main Menu 1 2 Airflow Direction Quick Start Schedule Off Timer Celsius Fahrenheit Maintenance Information Check that the airflow direction is actuated according to the setting and push the Menu OK button Airflow Direction R18830 How to deactivate test operation Press and hold the Cancel button for 4 seconds to enter the Service Settings menu Use the wa buttons to select Test Operation in the menu and push the Menu OK button EDT 1 3 Maintenance Contact Field Settings Energy Saving Options Prohibit Function
184. rea The refrigerant gas may generate toxic gases when it contacts flames Be sure to discharge the capacitor completely before conducting repair work The step up capacitor supplies high voltage electricity to the electrical components of the outdoor unit A charged capacitor may cause an electrical shock vi Safety Cautions vil SiUS121502E Do not start or stop the air conditioner operation by plugging or unplugging the power cable plug Plugging or unplugging the power cable plug to operate the equipment may cause an electrical shock or fire Be sure to wear a safety helmet gloves and a safety belt when working at a high place more than 2 m 6 5 ft Insufficient safety measures may cause a fall accident In case of R 32 R 410A refrigerant models be sure to use pipes flare nuts and tools for the exclusive use of the R 32 R 410A refrigerant The use of materials for R 22 refrigerant models may cause a serious accident such as a damage of refrigerant cycle as well as an equipment failure Do not mix air or gas other than the specified refrigerant R 32 R 410A R 22 in the refrigerant system If air enters the refrigerating system an excessively high pressure results causing equipment damage and injury Do not repair the electrical components with wet hands Working on the equipment with wet hands may cause an electrical shock Do not clean the air conditioner by splashing water Washing the unit with wa
185. ress the Cancel button once Press the Cancel button for 4 seconds or more peration Hours SiUS121502E The illustrations are for BRC1E72 as representative Main Menu Airflow Direction Quick Start Schedule e Off Timer Celsius Fahrenheit Maintenance Information e Configuration Current Settings Clock Calendar Daylight Saving Time anguage Press the Cancel button once Maintenance Menu Mode Name Indoor Unit Status Outdoor Unit Status Forced Defrost Error Display Setting Maintenance Menu screen lt Maintenance Menu gt Model Name Operation Hours Indoor Unit Status Outdoor Unit Status Forced Defrost Error Display Swap Unit No Addressed Sensor Value R21931 Service Diagnosis SiUS121502E Service Diagnosis Service Check The following message is displayed on the screen when a error or a warning occurs during operation Function Check the error code and take the corrective action specified for the particular model Screen _ Operation lamp On Off 1 Menu OK button R18817 1 Check if it is error or warning C Operation status Display The operation lamp green Coo set to Abnormal The system stops starts to blink The message shutdown operating Error Push Menu button blinks the
186. ries SiUS121502E Airflow Selection FVXS Series Setting Airflow direction can be set with the airflow selection switch Open the front panel Li Air is blown from the upper outlet only w The blow pattern is automatically decided depending on mode and conditions Recommended and factory set R17866 Front panel Caution Before opening front panel be sure to stop the operation and turn the breaker off Do not touch the aluminum fins indoor heat exchanger inside of the indoor unit as it may result in injury When setting the airflow selection switch to 11 B The air conditioner automatically decides the appropriate blowing pattern depending on the operating mode situation Operating mode Blowing pattern When the room has become fully Air is blown from the upper air cool or when 1 hour has passed outlet so that air does not come since turning on the air conditioner into direct contact with people and room temperature is equalized At the start of operation or when the room is not fully cooled Normal time Cooling operation R17867 Heating operation Air is blown from the upper and lower air outlets for high speed cooling during cooling operation and for filling the room with warm air during heating operation Atthe start or when air temperature Air is blown from the upper air is low outlet so that air does not come
187. rmally high NO NO Is the float switch connected to X15A Connect the float switch YES Remove the float switch from X15A short circuit X15A and restart operation Does 12 appear on the remote controller display NO Replace the float switch YES the indoor unit PCB control PCB R22268 d Note For the location of the switch 551 refer to page 26 128 Service Diagnosis SiUS121502E Troubleshooting for FFQ Series 6 3 Fan Motor AC Motor or Related Abnormality Error Code Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting HN e p The signal from the fan motor detects abnormal fan speed The fan rotations are not detected while the output voltage to the fan is at its maximum Disconnection short circuit or disengagement of connector in fan motor harness Defective fan motor disconnection poor insulation Abnormal signal from fan motor faulty circuit Defective indoor unit PCB Momentary fluctuation of power supply voltage Fan motor lock Caused by motor or other external factors Fan does not rotate due to tangled foreign matters Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Turn off the power supply Is there any foreign matter around the fan YES Remove the foreign matter 15 the ha
188. rness from the fan motor correctly connected to the indoor unit PCB Connect the connector 20 correctly YES Check the fan motor connector See the Note Is there short circuit between the terminals NO Replace the indoor fan motor YES Replace the indoor unit PCB control PCB 822269 1 Note 1 Check the connector of fan motor Power supply cable Service Diagnosis 2 Turn OFF the power supply 3 Measure the resistance between the terminals at the motor side connectors to check that there is no short circuit while the connector is disconnected 1 Red 1 3 88 2 10 2 White 2 3 85 5 1096 3 Black R18060 129 Troubleshooting for FFQ Series SiUS121502E 6 4 Drain System Abnormality Error Code Method of Error Water leakage is detected based on the float switch ON OFF changeover while the compressor is Detection not operating Error Decision The float switch changes from ON to OFF while the compressor is OFF Conditions Supposed B Error in drain pipe installation Causes Defective float switch B Defective indoor unit PCB Troubleshooting Be sure to turn off power switch before connecting or disconnecting Caution connectors or parts may be damaged Are the float switch and the drain pipe normal The float switch may be defective Check if the drain up height and the horizontal pipe length YES exceed
189. rol 65 Control Specification SiUS121502E 3 4 5 Compressor Protection Function When turning the compressor from OFF to ON the upper limit of frequency is set as follows The function is not used when defrosting C B sec lt E pja F ae 35 55 B 48 65 ci 70 8 D seconds E seconds 200 500 F seconds 180 470 3 5 Discharge Pipe Temperature Control Outline The discharge pipe temperature is used as the internal temperature of the compressor If the discharge pipe temperature rises above a certain level the upper limit of frequency is set to keep the discharge pipe temperature from rising further Detail Stop zone Dropping B Discharge pipe temperature Heset zone R14266 A 120 C 248F 120 C 248 B 103 C 217 4 F 111 C 231 8 F 102 C 215 6 109 C 228 2 D 100 C 2125 107 C 224 6 F E 95C 203F 107 C 224 6 F The same value continues When the temperature reaches the stop zone the compressor stops Dropping zone The upper limit of frequency decreases The upper limit of frequency is kept The upper limit of frequency is canceled 66 Function and Control SiUS121502E Control Specification 3 6 Input Current Control Outline Detail Function and Control The microcomputer calculates the input current while the compressor is running and sets the freque
190. rotation speed of the outdoor fan is controlled for keeping the pressure difference during cooling operation with low outdoor temperature When the pressure difference is low the rotation speed of the outdoor fan is reduced When the pressure difference is high the rotation speed of the outdoor fan is controlled as well as normal operation 5 Fan control when the number of heating room decreases When the outdoor temperature is more than 10 C 50 F the fan is turned off for 30 seconds 6 Fan speed control during forced operation The outdoor fan is controlled as well as normal operation during the forced operation 7 Fan speed control during POWERFUL operation The rotation speed of the outdoor fan is increased during the POWERFUL operation 8 Fan speed control during indoor outdoor unit quiet operation The rotation speed of the outdoor fan is reduced by the command of the indoor outdoor unit quiet operation 9 Fan ON OFF control when operation cooling heating dry starts stops The outdoor fan is turned ON when the operation starts The outdoor fan is turned OFF when the operation stops 3 10 Liquid Compression Protection Function Outline The compressor stops according to the outdoor temperature for protection Detail Operation stops depending on the outdoor temperature The compressor turns off under the conditions that the system is in cooling operation and the outdoor temperature is below 12 C 10 4 F
191. s SiUS121502E Troubleshooting for FFQ Series 6 7 Signal Transmission Error Between Indoor Unit and Remote Controller Error Code Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting Service Diagnosis I Z In case of controlling with 2 remote controllers check the system using microcomputer if signal transmission between indoor unit and remote controller main and sub is normal Normal transmission does not continue for specified period Connection of 2 main remote controllers when using 2 remote controllers Defective indoor unit PCB Defective remote controller Transmission error caused by noise Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Is SS1 of both remote controllers set to MAIN Using 2 remote controllers YES Set one remote controller to SUB turn the power supply off once and then back on Do the Service monitors of all the indoor units blink YES operation return to normal when the power is turned off momentarily NO NO the indoor unit PCB control PCB BER There is possibility of Replace the remote controller 21 ioa and turn on again YE Return to normal 2 Normal NO Replace the indoor unit PCB NO Return to normal There is possibility of malfunction caused by noise YES Check th
192. s 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 exposure to the sea breeze should be avoided If you need to install the outdoor unit close to the sea shore contact your local distributor Dealer All rights reserved eSpecifications designs and other content appearing in this brochure are current as of July 2015 but subject to change without notice SiUS121502E Printed in U S A 07 2015 B AK
193. scribed on the and outdoor units product diagnosis nameplate Check for thermistor detection errors Check if the thermistor is mounted securely Check for faulty operation of the Set all the units to cooling operation and electronic expansion valve compare the temperatures of the liquid pipes to see if the each electronic expansion valve works 114 115 Diagnose with remote controller indication Diagnose by service port pressure Check for refrigerant shortage and operating current 136 Large operating noise and Check the output voltage of the 176 vibrations power module Check the power module Check the installation condition Check if the required spaces for installation specified in the installation manual are provided co Service Diagnosis 9 Troubleshooting with LED 5105121502 2 Troubleshooting with LED 2 1 Indoor Unit Operation Lamp The operation lamp blinks when any of the following errors is detected 1 When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions 2 When a signal transmission error occurs between the indoor and outdoor units In either case conduct the diagnostic procedure described in the following pages CTXS FTXS series CDXS FDXS series Operation mo amp Operation lamp green R13534 R16589 FVXS series INVERTER oworr 77 Operation la
194. sis SiUS121502E General Problem Symptoms and Check Items 1 General Problem Symptoms and Check Items None of the units operates Check the power supply Check if the rated voltage is supplied P fex Check the types of the indoor units Check if the indoor unit type is compatible with the outdoor unit Check the outdoor temperature Heating operation cannot be used when the outdoor temperature is 15 5 CWB 59 9 FWB or higher and cooling operation cannot be used when the outdoor temperature is below 10 CDB 14 FDB Diagnose with remote controller Check the remote controller Check if address settings for the remote 189 addresses controller and indoor unit are correct Operation sometimes Check the power supply A power failure of 2 to 10 cycles can stop air stops conditioner operation Operation lamp OFF Heating operation cannot be used when the Check the outdoor temperature outdoor temperature is 15 5 CWB 59 9 FWB or higher and cooling operation cannot be used when the outdoor temperature is below 10 CDB 14 FDB Diagnose with remote controller Some indoor units do not Check the type of the indoor units Check if the indoor unit type is compatible with operate the outdoor unit Diagnose with remote controller Units operate but do not Check for wiring and piping errors in Check the piping cool or do not heat the connection between the indoor Conduct the wiring error check de
195. sor is used B Assuming suction temperature has changed from 30 C 86 F 18 C 64 4 A 30 25 C 86 77 F D Body thermostat sensor is used 25 21 C 77 69 8 F D B Remote controller thermostat sensor is used 21 18 C 69 8 64 4 F B A thermostat sensor is used 56 Function and Control SiUS121502E Heating F 89 6 86 0 82 4 78 8 75 2 Set temperature Ts 71 6 68 0 64 4 60 8 Function and Control C 32 30 28 26 24 22 20 18 16 Function of FFQ Series When heating the hot air rises to the top of the room resulting in the temperature being lower near the floor where the occupants are When controlling by body thermostat sensor only the indoor unit may therefore be turned off by the thermostat before the lower part of the room reaches the set temperature The temperature can be controlled so the lower part of the room where the occupants are does not become cold by widening the range in which thermostat sensor in remote controller can be used so that suction temperature is higher than the set temperature 5 a tat teet Cer td gt 655555 gt c 555 d 5255255 gt Y OLLI 4 5252525 24 14 57 2 16 60 8 18 64 4 20 68 0 22 71 6 24 75 2 26 78 8 Range in which thermostat sensor in remote controlle
196. ssage The airflow direction clock and selectable item appear on Detailed display screen in addition to the items appearing on CENTRE 7 Auto 111 03 7 Coal Room Set to 12 Airflow Direction Displayed only when Cool 74 the indoor unit is 1 er 4 Heat turned on P RIFY STANDDT Return Setting Detailed display example 1 gt No Fan speed display with no fan speed control function TED CENA SETBACK Auto 6 Cool No Airflow ___ J t Direction display PURIFY STANDBY Return Setting with no airflow direction settings lt Detailed display example 2 gt Standard display 13 Current Day Time 12 24 hour time display 14 Selectable Display Item No Clock display when the clock has not been set yet 15 Unable to schedule No Selectable Display Item with no selectable display item selected Remote Controller SiUS121502E FFQ Series Simple display 1 Operation mode _ Room Cool 14 Selectable Display Set to 4 Heat Cool 3 Setpoint 74 11 Setback 2 4 Stand by for Defrost Simple display example Hot start Note for all display modes Depending on the field settings while the indoor unit is stopped OFF may be displayed instead of the operation mode and or the setpoint may not
197. t Auto Air Fite Running Current Rated Power Consumption Rated Power Factor Rated Temperature Contro ed Rigssure A HT SL dB A 38 36 34 32 38 36 34 32 in mm VP20 O D 6 1 1 32 26 1 0 25 32 20 Drawing No FVXSO9NVJU FVXS12NVJU Rated Capacity 9 kBtu h Class 12 kBtu h Class Front Panel Color Airflow Rate Fan Air Direction Control Air File RUD 2 1 o 05 Temperature Contro dB A 38 32 26 23 38 32 26 23 39 33 27 24 39 33 27 24 Sound Power Level 230 2 7 Liquid and Gas Pipes Liquid and Gas Pipes Bs 91 4 9 6 4 1 4 6 4 03 8 9 5 03 8 0 9 5 9 13 16 9 20 0 9 13 16 20 0 3D094867 3D094868 Conversion Formulae kcal h kW x 860 Btu h kW x 3412 cfm m3 min x 35 3 Specifications 11 Indoor Unit SiUS121502E 60 Hz 208 230 V 2 Rated Capadiy Front Panel Color nin SL Turbo Fan Fan 253 5 Steps Quiet Auto Air Direction Control Air iter Running Curent Rate Power Consumption Rated w e Power actor Rated Temperature Contro vds Pressure W M L SL dB A 44140 36 32 45 40 36 32 SomdPowrlew _ e Cooling Cooling Heating ___ White 2 5 32 x 27
198. t Cooling gt Target temperature e 9 at set hours TIMER operation 0 5 0 9 NIGHT SET Mode ON temperature shift Heating Target temperature R21924 1 hour operation 2 C 8 6 F NIGHT SET Mode ON temperature shift R21925 ECONO Operation ECONO operation reduces the maximum operating current and the power consumption This operation is particularly convenient for energy saving It is also a major bonus when breaker capacity does not allow the use of multiple electrical devices and air conditioners It can be easily activated by pushing the ECONO button on the wireless remote controller B When this function is activated the maximum capacity also decreases B 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 Press the button on the remote controller to cancel the function B This function and POWERFUL operation cannot be used at the same time The latest command has the priority lt Maximum during normal operation Power consumption and current aanipas EE Maximum during ECONO operation ECONO operation Time R22012 Function and Control 43 Function of CTXS FTXS CDXS FDXS FVXS Series SiUS121502E 1 10 INTELLIGENT E
199. t a temperature shifted from the target temperature Cooling Dry 1 2 C 1 8 3 6 F higher Heating 2 C 3 6 F lower Auto according to the operation mode at that time Note For dry operation the temperature cannot be set with a remote controller the target temperature is shifted internally 44 Function and Control SiUS121502E Function of CTXS FTXS CDXS FDXS FVXS Series 1 11 Inverter POWERFUL Operation Outline Detail d Note Function and Control In order to exploit the cooling and heating capacity to full extent the air conditioner can be operated by increasing the indoor fan rotating speed and the compressor frequency When POWERFUL button is pressed the fan speed and target temperature are converted to the following states for 20 minutes COOL H tap A rpm 18 C 64 4 F Dry rotating speed A rpm Bir PE T H tap A rpm 30 31 5 C 86 88 7 F O as cooling heating in The target temperature is POWERFUL operation kept unchanged A 50 90 rpm depending on the model Ex POWERFUL operation in cooling Target temp It should be the lower limit of cooling temperature 18 C 64 4 F POWERFUL counts 20 minutes also O in the remote controller N POWERFUL Ending condition 1 After the lapse of 20 minutes 2 Operation OFF 20 minutes 3 POWERFUL operation is OFF R19193 POWERFUL operation cannot be used toge
200. t abnormal high pressure while the frequency is low Control is carried out according to three zones Detail Dropping zone Reset zone Highest indoor heat exchanger temperature R14587 among operating rooms A 60 140 38 5 C 101 3 F B 59C 1382F 37 5 99 5 F 56 C 132 8 F 34 5 C 94 1 F Function and Control 71 Control Specification SiUS121502E 3 13 Electronic Expansion Valve Control Outline 72 The following items are included in the electronic expansion valve control Electronic expansion valve is fully closed 1 Electronic expansion valve is fully closed when turning on the power 2 Pressure equalizing control Room Distribution Control UI m V IMs Gas pipe isothermal control SC subcooling control Liquid pipe temperature control with all ports connected and all rooms being air conditioned Liquid pipe temperature control for stopped rooms Dew prevention control for indoor rotor Open Control Electronic expansion valve control when starting operation Electronic expansion valve control when the frequency changes Electronic expansion valve control for defrosting Electronic expansion valve control for oil recovery Electronic expansion valve control when a discharge pipe temperature is abnormally high Electronic expansion valve control when the discharge pipe thermistor is disconnected Electronic expansion valve control for indoor unit freeze u
201. te Turn off the power and rotate the fan by hand Is there an output Replace the indoor fan motor or the indoor unit PCB control PCB Replace the indoor fan motor YES Does the fan rotate smoothly YES Check the fan motor voltage Turn on the power and check the fan motor voltage immediately after restart NO Voltage as rated Replace the indoor unit PCB control PCB YES Replace the indoor fan motor Measure the voltage between the black and white lead wires of the fan motor and check if the maximum voltage reaches the rated NO voltage Voltage as rated Replace the indoor unit PCB control PCB YES Check the capacitor s continuity NO Is there continuity Replace the indoor fan motor YES Replace the capacitor Replace the indoor unit PCB control PCB R22267 122 Service Diagnosis SiUS121502E Troubleshooting for CTXS FTXS CDXS FDXS FVXS Series 5 4 Thermistor or Related Abnormality Error Code Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting 4 Lo gt The temperatures detected by the thermistors determine thermistor errors The voltage between the both ends of the thermistor is 4 96 V and more or 0 04 V and less during compressor operation B Disconnection of connector B Thermistor corresponding to the error code is defective B Defective indoor unit PCB
202. ter may cause an electrical shock Be sure to provide the earth 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 may cause injury Be sure to conduct repair work with appropriate tools The use of inappropriate tools may cause injury 5105121502 Safety Cautions Be sure to check that the refrigerating cycle section has cooled down enough before conducting repair work Working on the unit when the refrigerating cycle section is hot may cause burns Use the welder in a well ventilated place Using the welder in an enclosed room may cause oxygen deficiency Do not store the equipment in a room with successive fire sources e g naked flame gas appliance electric heater Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or tools may cause an electrical shock excessive heat generation or fire If the power cable and lead wires have scratches or deteriorated be sure to replace them Damaged cable and wires may cause an electrical shock excessive heat generation or fire Do not use a joined power cable or extension cable or share the same power outlet with other electrical appliances since it may
203. terminates in approx 30 minutes and switches into normal mode To quit trial operation press the On Off button T 7 19 A m 2 3 v 2 4 5 1 6 Trial Operation and Field Settings SiUS121502E Trial Operation 3 2 Series 3 2 1 Checkpoints To carry out test operation check the following B Check that the temperature setting of the remote controller is at the lowest level in cooling operation or use test operation mode Go through the following checklist Checkpoints Are all units securely installed e Dangerous for turning over during storm Possible damage to pipe connections Is the ground wire installed according to the applicable Dangerous if electric leakage occurs local standard Are all air inlets and outlets of the indoor and outdoor units Poor cooling unobstructed Poor heating Does the drain flow out smoothly Water leakage Is piping adequately heat insulated Water leakage Have the connections been checked for refrigerant Poor cooling leakage Poor heating e Stop Is the power supply voltage conform to the specifications Incorrect operation on the name plate Are the cable sizes as specified and according to local Damage of cables regulations Are the remote controller signals received by the unit 3 2 2 Test operation BRC1E71 72 73 Note The illustrations are for BRC1E72 as representative Step Acin 7 Remote controller Befo
204. the customer is worried about the effects of the operating noise on the neighbors However if NIGHT QUIET mode is running cooling capacity is reduced Turn on the SW6 1 on the service monitor PCB of the outdoor unit Service monitor PCB Remove Night Quiet mode the switch setting switch SW6 1 2 9 1 R22008 Trial Operation and Field Settings SiUS121502E Field Settings 4 2 5 FTXS CDXS FDXS FVXS Series 4 2 1 Model Type Setting ARC452A21 ARC452A23 B The remote controller is common to the heat pump model and cooling only model B sure the DIP switch is set to the left side The heating operation will not be available when the DIP switch is set to the right side Heat pump model DIP switch EZ Cooling only model DIP switch Lr EU R18201 ARC466A21 B The remote controller is common to the heat pump model and cooling only model LI v3 Never cut this jumper R18451 Caution Replace remote controller if you the jumper on left side The heating operation will not be available when the jumper on the left side is cut Trial Operation and Field Settings 187 Field Settings 4 2 2 Temperature Display Switch SiUS121502E You can select Fahrenheit or Celsius for temperature display ARC452A21 ARC452A23 Press the TEMPA and TEMP buttons at the same time for
205. the same LED indication appears again immediately after the power is turned on the fault is in the thermistor f the above condition does not result the fault is the CT 3 he indoor unit error code may take the precedence in the remote controller display 4 Turn the power off and then on again If the same LED indication appears again outdoor unit PCB is faulty Replace the outdoor unit PCB demo eee c Service Diagnosis 115 Troubleshooting for CTXS FTXS CDXS FDXS FVXS Series SiUS121502bE 5 Troubleshooting for CTXS FTXS CDXS FDXS FVXS Series 51 Indoor Unit PCB Abnormality al Error Code 1 Method of Error The system checks if the circuit works properly within the microcomputer of the indoor unit Detection Error Decision The system cannot set the internal settings Conditions Supposed Wrong models interconnected Causes Defective indoor unit PCB Disconnection of connector Reduction of power supply voltage 116 Service Diagnosis SiUS121502bE Troubleshooting for CTXS FTXS CDXS FDXS FVXS Series Troubleshooting Be sure to turn off power switch before connecting or disconnecting Caution connectors or parts may be damaged Check the combination of the indoor and outdoor unit Match the compatible models To secure the connection once disconnect the connector and then reconnect it YES Check the power supply voltage NO N Voltage as rated Y
206. ther with ECONO or COMFORT AIRFLOW operation 45 Function of CTXS FTXS CDXS FDXS FVXS Series SiUS121502E 1 12 Clock Setting ARC452 Series The clock can be set by taking the following steps ARC466 Series 1 2 3 46 Press the CLOCK button 00 is displayed and MON and blink Press the SELECT A or SELECT button to set the clock to the current day of the week Press the CLOCK button gt blinks Press the SELECT or SELECT 7 button to adjust the clock to the present time Holding down the SELECT A or SELECT button increases or decreases the time display rapidly Press the CLOCK button to set the clock Point the remote controller at the indoor unit when pressing the button blinks and clock setting is completed ARC452 series ARC466 series C Jo nnn MS SELECT S 2 SELECT button button 6 CLOCK Ey button R18281 R19926 Function and Control SiUS121502E Function of CTXS FTXS CDXS FDXS FVXS Series 1 13 WEEKLY TIMER Operation CTXS FTXS FVXS series Outline Detail Up to 4 timer settings can be saved for each day of the week up to 28 settings in total The 3 items ON OFF temperature and time can be set The illustrations are for FVXS series as representative Setting example of the WEEKLY TIMER The same timer settings are used from Monday through Friday while different timer
207. ton at the same time R11669 5t is displayed on the LCD R11821 2 Select 5 service check with the Temp or Temp V button 3 Press the Mode button to enter the service check mode R11672 The left side number blinks R11670 4 Press the Temp A or Temp button and change the number until you hear the two consecutive beeps or the long beep R11671 106 Service Diagnosis SiUS121502E Service Diagnosis Service Diagnosis Diagnose by the sound beep The left side number does not correspond with the error code two consecutive beeps The left side number corresponds with the error code but the right side number does not long beep Both the left side and right side numbers correspond with the error code The numbers indicated when you hear the long beep are the error code Refer to page 114 115 Press the Mode button R11672 The right side number blinks R11673 Press the Temp A or Temp button and change the number until you hear the long R11671 Diagnose by the sound beep The left side number does not correspond with the error code two consecutive beeps The left side number corresponds with the error code but the right side number does not long beep Both the left side and right side numbers correspond with the error code Determine the error code The numbers indicated when you hear the long beep are the error code
208. tor for display PCB 8 S48 Connector for sensor PCB 9 H1 H2 H3 Connector for terminal board 10 E1 Terminal for ground wire 11 JA Address setting jumper Refer to page 189 for detail 12 Fan speed setting when compressor stops for thermostat OFF Refer to page 191 for detail 13 Power failure recovery function Refer to page 191 for detail 14 FU1 F1U FU2 Fuse 3 15 A 250 V 15 LED A LED for service monitor green 16 V1 V2 Varistor FU2 1614009 coor 1Lot No R383 74 ir 3503 07 8 ver AES err FU1 H1 51 LEDA S21 S41 542 526 2P383711 1 Caution Replace the PCB if you accidentally cut the jumpers other than JA JB and JC Jumpers are necessary for electronic circuit Improper operation may occur if you cut any of them d Note The symbols in the parenthesis are the names on the appropriate wiring diagram 24 Printed Circuit Board Connector Wiring Diagram SiUS121502E Sensor PCB PCB1 1 S49 2 RTH2 R1T Service PCB PCB3 1 S27 2 SW2 S2W 4 3 SW4 SAW Display PCB PCB4 1 S47 2 SW1 S1W 3 LED1 H1P 4 LED2 H2P Indoor Unit Connector for control PCB temperature thermistor RTH2 3P 191450 ATH 549 3 191450 1 Connector for control Switch for upward airflow limit setting Refer to page 191 for detail Keep the other switches as factory setting owitch for airf
209. transmission signal The pair type and multi type are interconnected Wrong models interconnected Wrong wiring of connecting wires Wrong indoor unit PCB or outdoor unit PCB mounted Defective indoor unit PCB Defective outdoor unit PCB Be sure to turn off the power switch before connecting disconnecting Caution connectors or parts may be damaged Check the combination of the indoor and outdoor unit NO Match the compatible models YES Are the connecting wires connected property AS Correct the connection YES Check the code numbers 2P012345 for example of the indoor and outdoor unit PCB with the Parts List If not matched change for the correct PCB R20435 Service Diagnosis SiUS121502E Troubleshooting for FFQ Series 6 Troubleshooting for FFQ Series 6 1 Indoor Unit PCB Abnormality Error Code Method of Error Detection Error Decision Conditions Supposed Causes Troubleshooting Service Diagnosis e gt The system checks the data from EEPROM The data from the EEPROM is not received correctly EEPROM Electrically Erasable Programmable Read Only Memory A memory 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 B
210. tting Fan OFF at thermostat OFF Standard Fan OFF External static pressure setting Airflow adjustment is OFF Completion Start of of airflow airflow adjustment adjustment Optional accessories output selection field selection of output for adaptor for wiring Compressor Operation output Forced ON OFF function Forced OFF ON OFF operation Thermostat differential changeover setting for when using remote sensor 1 C 0 5 C High air outlet velocity for high ceiling applications lt 2 7 2 7 3 0 3 5 Selection of airflow direction setting for when a blocking pad kit has been installed 4 way flow 3 way flow 2 way flow Selection of airflow function setting for when using a decoration panel for outlet Equipped Not equipped Airflow direction range setting Upper Normal External static pressure Standard High Drain pump operation with humidifying Not equipped Equipped factory setting m Note Any function that is not available on the indoor unit is not displayed 194 Trial Operation and Field Settings 5105121502 Field Settings 4 3 3 MAIN SUB Setting when Using 2 Wired Remote Controllers Outline The MAIN SUB setting is necessary when 1 indoor unit is controlled by 2 remote controllers When you use 2 remote controllers control panel and separate remote controller
211. unction is set for all the operating indoor units Tum the circuit breaker off before changing the setting Turn on the one of the switches of the SW4 on the service monitor PCB Only one room can be set as the priority room Turn the power on Service monitor PCB 2j Remove the switch i cover Screw 9 K 5 Priority room setting switch SW4 1 R22006 Trial Operation and Field Settings 185 Field Settings SiUS121502E 4 1 2 COOL HEAT Mode Lock Use the 515 connector to set the unit to cooling only or heating only Setting to heating only H Short circuit the pins 1 and 3 of the connector 515 Setting to cooling only Short circuit the pins 3 and 5 of the connector 515 The following specifications apply to the connector housing and pins B JST products Housing VHR 5N Pin SVH 21T 1 1 Note that forced operation is also possible in cooling heating mode N COOL mode C HEAT mode H R22007 4 1 3 NIGHT QUIET Mode Outline Procedure 186 If NIGHT QUIET mode is to be used initial settings must be made when the unit is installed Explain the function of NIGHT QUIET mode as described below to the customer and confirm whether or not the customer wants to use NIGHT QUIET mode NIGHT QUIET mode function reduces operating noise of the outdoor unit at nighttime This function is useful if
212. unit PCB control Check 02 YES Check the output of the fan motor connector Rotation pulse NO Replace the indoor generated fan motor YES the indoor unit PCB control the indoor 9 fan motor Replace the indoor unit PCB control POB R20411 Service Diagnosis SiUS121502E Troubleshooting for CTXS FTXS CDXS FDXS FVXS Series 5 3 2 AC Motor CDXS FDXS Series n Error code Method of Error The rotation speed detected by the Hall IC during fan motor operation determines abnormal fan Detection motor operation Error Decision The detected rotation speed does not reach the demanded rotation speed of the target tap Conditions Supposed B Power supply voltage is not as specified Causes Layer short inside the fan motor winding B Breaking of wire inside the fan motor B Breaking of the fan motor lead wires B Defective capacitor of the fan motor Defective indoor unit PCB Service Diagnosis 121 Troubleshooting for CTXS FTXS CDXS FDXS FVXS Series SiUS121502bE Troubleshooting N Be sure to turn off the power switch before connecting or disconnecting Caution connectors or parts may be damaged Check No 04 Refer to P 167 Check the power supply voltage Is the voltage fluctuation within 10 from the rated value Correct the power supply YES Start operation YES Check No 04 Check Hall IC NO Does the fan rota
213. utdoor unit PCB main PCB PCB Actual rotation pulse input 0 15 VDC Rotation command voltage 0 15 VDC Control voltage 15 VDC 320 VDC R21120 Service Diagnosis SiUS121502E Check 8 10 Installation Condition Check Check No 17 Installation condition check Check the allowable dimensions of the air suction and discharge area Change the installation location or direction Is the discharged air short circuited Change the installation location or direction Is the outdoor heat YES exchanger very dirty Clean the outdoor heat exchanger Is the airflow blocked by obstacles or winds blowing in the opposite direction Check the outdoor temperature The outdoor temperature should be within the operation range Change the installation location or direction R19394 8 11 Discharge Pressure Check Check No 18 Service Diagnosis Discharge pressure check NO Replace the compressor YES Is the stop valve open Open the stop valve Is the connection pipe deformed Replace the pipe installed at the site Is the air filter or indoor outdoor heat exchanger dirty Replace the compressor Clean the dirty air filter or indoor outdoor heat exchanger R21121 173 Check SiUS121502E 8 12 Outdoor Fan System Check Check No 19 DC motor Check the outdoor fan system Is the outdoor fan running YES Outdo
214. waveform is a sine wave Fig 1 B Check if there is waveform disturbance near the zero cross sections circled in Fig 2 Fig 1 Fig 2 R1444 R1736 168 Service Diagnosis SiUS121502E Check 8 5 Electronic Expansion Valve Check Check No 12 Conduct the followings to check the electronic expansion valve EV 1 Check if the EV connector is correctly inserted in the PCB Match the EV unit number and the connector number 2 Turn the power off and on again and check if all the EVs generate a latching sound 3 If any of the EVs does not generate a latching sound in the above step 2 disconnect that connector and check the continuity using a multimeter Check the continuity between the pins 1 6 3 6 2 5 4 5 between the pins 1 5 2 5 3 5 4 5 for the harness 5P models If there is no continuity between the pins the EV coil is faulty 4 If no EV generates a latching sound in the above step 2 the outdoor unit PCB is faulty 5 If the continuity is confirmed in the above step mount a good coil which generated a latching sound in the EV unit that did not generate a latching sound and check if that EV generates latching sound latching sound is generated the outdoor unit is faulty latching sound is not generated the EV unit is faulty d Note Please note that the latching sound varies depending on the valve type If the system keeps operating with a defective electronic expansion valve
215. wer supply Connector for ground wire Connector for compressor Fuse 3 15 A 250 V Fuse 30 A 250 V Varistor Printed Circuit Board Connector Wiring Diagram SiUS121502E Printed Circuit Board Connector Wiring Diagram 23 2 FEBRE Pis B dus rF 1 Fr 1 14 gt 4 8 gt A 4 n h 3 i v LJ pee eer econ esos S40 S93 S90 S92 Outdoor Unit MEE HL1 HN1 18 9 gt i Pa SEN 41 0 o w 2 350358 10 2 350358 11 31 Outdoor Unit Service Monitor PCB PCB2 32 5501 5502 LED1 LED5 5 1 SW2 SW3 SW4 SW6 1 YOLINOW E oie Mud sui SiUS121502E Connector for main PCB LED for service monitor green LED for service monitor red Forced cooling operation ON OFF switch Refer to page 178 for detail Operation mode switch Refer to page 178 for detail Wiring error check switch Refer to page 179 for detail Priority room setting switch Refer to page 185 for detail NIGHT QUIET mode setting switch Refer to page 186 for detail LED5 LED4 LEDS LED2 LED1 LEDA 5501 om ___ 5502 OFF SW1 SW3 SW6E 1 SWA 5502 3 346711 10 SWe6 2 and all the switches of SW5 have no function Keep them OFF Printed Circuit Board Connector Wiring Diagram SiUS121502E Function and

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