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Service Manual - daikin tech.co. uk

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1. 36 535 sete kets 1 X1M r 2 INTELLIGENT J Fu e gt i i EYESENSOR Z BLK T1 jan WHT 2 1 L_ outdoor H2 2 1 gt 3 TERMINAL FOR 527 5298 CENTRALIZED coNrRoL ww Gl FIELD WIRING LED2 LED3 e TRANSMISSION HS 3 521 CIRCUIT paci cU PERS 1 HIP E CAUTION S1W lle SIF 1 NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF SIGNAL ery i THE MAIN POWER SUPPLY IS t 00009 2 532 56 Ds ON AGAIN RIT Q 99999 amp 140 C H1P H3P PILOT LAMP N MIF FAN MOTOR MIS SWING MOTOR M1S 1 PRINTED CIRCUIT BOARD REMOTE 77770000000 MM MM MM M MM 7 1 2 THERMISTOR CONTROLLER
2. OUTDOOR TEMPARATURE MOTOR OPERATED VALVE LIQUID LINE BRANCH HERMISTOR DOA FILTER FILTER STOP VALVE PIPE HEAT EXCHANGER 6 4CuT 6 4CuT BRANCH ee 7 9CuT 6 4CuT POCHE e MOTORO D VALVE LIQUID LINE FN FILTER FILTER FILTE STOP VALVE LIQUID 6 4CuT 6 4CuT 6400 ROOM B 7 9CuT je 6 4 DISTRIBUTOR HEAT EXCHANGER THERMISTOR Be LIC LA 4000 7 9CuT FAN MOTOR casune GAS PIPE STOP VALVE ae MUFFLER 9 5CuT 9 5CuT ROOM A BRANCH O oak Ne zi 9 5 7 9CuT 9 5CuT 9 5CuT EAE B OP VALVE FELD MUFFLER THERMISTOR DGB T GAS 9 5CuT 95 ROOM 8 9 5 CUT Lg ey MUFFLER SSS DISCHARGE PIPE THEAMISTOR DO SCT REFRIGERANT FLOW 7904 ACCUMULATOR COMPRESSOR 30039394 2MXS40BVMB 2AMXS40BVMB OUTDOOR UNIT NULL TT
3. BLK WHT WHT WHT War WHT U VW 513 1 53 POWER SUPPLY 55 gt gt 50Hz 220 2401 60H2 220 230V zz 2965 Sonn 25 tI jt UU 12 2 FIELD WIRING 55 NIMES En outdoor RIT RBT RITR2T R3 X30A 44 2 ROOM OUTDOOR D MEM YOM JIT TI 4 C5 C8 SHC1 CAPACITOR ROOM B CONDENSER CURRENT TRANSFORMER 0000000000000 081 283 DIODE BRIDGE Zen FU1 FU3 FUSE L LIVE 0163 TRIAC L1 COIL 1 PCB2 PRINTED CIRCUIT BOARD X1M X2M TERMINAL STRIP BLK BLACK LL MIC L1R REACTOR OVERLOADPROTECTOR Y2E ELECTRONIC EXPANSION VALVE COIL BLU BLUE M1C COMPRESSOR MOTOR R1T R8T THERMISTOR 216 FERRITE CORE BROWN PROTECTIVE EARTH GRY GREY M1F FAN MOTOR SA1 SURGE ARRESTER 510 512 520 S21 30 ORG ORANGE
4. R2891 Removal Procedure 141 Outdoor Unit SiBE12 314 Step Procedure Points 4 Disconnect the relaying connector for the compressor Disconnect the two connectors of the reactor Disconnect the earth terminal Disconnect the connection wiring and the power supply wiring Relaying connector for the compressor Reactor Earth terminal R2894 R2892 R2893 142 Removal Procedure SiBE12 314 Outdoor Unit Step Procedure Points 8 Disconnect the harnesses Loosen the screw of the terminal strip board Loosen the four screws of the PCB yellow R2896 R2897 Athermal fuse is united with the terminal strip board m The PCB is upside down for the sake of quality improvement Service monitor LED A Slif for AE view R2898 You can see the LED through the slit Removal Procedure 143 Outdoor Unit SiBE12 314
5. R2886 m Putthe lead wire through the back of the motor when reassembling so as not to be entangled with the propeller fan 8 Unlock the fixing claws and release the lead wire Lead wire Sd Lead wire Propeller fan R2888 R2887 140 Removal Procedure SiBE12 314 Outdoor Unit 1 2 Removal of the Procedure Warning sure to 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points W Disconnect the fan motor m The PCB is upside down for lead wire the sake of quality 1 Remove the PCB 1 improvement 1 The illustration shows 1 appearance of the PCB Lead free soldering PbF is adopted 2 The illustration shows arrangement of the relaying connectors 92890 3 Disconnect the connectors 250 S20 electronic nextto S21 nextto S80 expansion valve S70 5214 520 580 EVA Y S21 electronic expansion valve EVB S70 fan motor S80 four way valve S90 thermistor In discharge pipe outdoor air heat exchanger S91 thermistor liquid pipe gas pipe
6. Cooling Only SiBE12 314 1 Cooling Only en en 2 gt gt 12 ip 2 ip Category Functions 2 Category Functions e 5 919 918 5 Y x Elo Basic Inverter olo Health amp Air Purifying Filter with Bacteriostatic ol Function with Inverter Power Control Clean amp Virustatic Functions Operation Limit for Cooling C Photocatalytic Deodorizing Filter Operation Limit for Heating Air Purifying Filter with s Photocatalytic Deodorizing Function PAM Control Longlife Filter Compressor Oval Scroll Compressor Ultra Longlife Filter Option Swing Compressor Mould Proof Air Filter Rotary Compressor Wipe clean Flat Panel Reluctance DC Motor Washable Grille Comfortable Power Airflow Flap Filter Cleaning Indicator Aiow Power Airflow Dual Flap Good Sleep Cooling Operation Power Airflow Diffuser Timer 24 Hour On Off Timer OJO Wide Angle Louvers OJO Vertical Auto Swing Up and Down O Worry Free Auto Restart after Power Failure Horizontal Auto Swing EMI Aa Self Diagnosis Digital LED Display Right and Left y Ox Ox 3 D Airflow 3 Step Only Wiring Error Check Comfort Auto Fan Speed olo Anticorrosion Treatment of Outdoor _ _ Control Heat Exchanger
7. 111 4 16 Thermistor or Related Abnormality Outdoor 113 4 17 Electrical Box Temperature 2 115 4 18 Radiation Fin Temperature Rise 2 12 117 4 19 Output Over Current 119 4 20 Insufficient Gas 21582 cated UU eec e n 121 4 21 Over voltage 123 4 22 Anti icing Function Other Rooms Unspecified Voltage between Indoor and Outdoor 124 4 23 Outdoor Unit PCB Abnormality or Signal Transmission Circuit Abnornaliby aoro eenen ie OR 125 Wm GI qe EE 126 Dl HOW to Checkin 126 Service Diagnosis 87 Caution for Diagnosis SiBE12 314 1 Caution for Diagnosis The Operation lamp flashes 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 disabling equipment operation 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 Location of In case of Operation Lamp FTK X S 25 35 B Series ATK X S 25 35 B Series Oper
8. 67 2 5 Adjusting the Air Flow Direction 69 2 6 POWERFUL Operation etende eue esce eo eee 71 2 7 OUTDOOR UNIT SILENT 72 2 8 HOME LEAVEODSrAUOM et dn eue Ade 73 2 9 INTELLIGENT EYE Operation 2 75 210 TIMER ODBEGUOEI 2 a a a 77 2 11 Note for Multi 79 2 12 Care and Cleaning acin nope SR ere tite e c Ree 81 2 T9 Troubles Ollignies eom in eode 84 Bog st OF autom TOR DIAGNOSE ceste 88 Problem Symptoms and 90 Service Check FUiCUObi co uoi too p Ma Paddle 91 ee 92 4 1 Error Codes and 92 4 2 Indoor Unit PCB Abnormality en ed 93 4 3 Freeze up Protection Control or High Pressure Control 94 4 4 Fan Motor AC Motor or Related 96 4 5 Thermistor or Related Abnormality Indoor 97 4 6 FUNCIO 98 4 7 OL Activation Compressor Overload 1
9. Drooping zone A 110 103 102 Unchanged zone D C D4101 Return zone R2836 Management within the Zones Zone Control contents Stop zone When the temperature reaches the stop zone stop the compressor and correct abnormality Drooping zone Start the timer and the frequency will be drooping Unchanged zone Keep the upper limit of frequency Return Reset zone Cancel the upper limit of frequency 3 5 Input Current Control Outline Detect an input current by the CT during the compressor is running and set the frequency upper limit from such input current In case of heat pump model this control is the upper limit control function of the frequency which takes priority of the lower limit of four way valve activating compensation Detail The frequency control will be made within the following zones 2 Hz drooping 1 0 second after After 2 5 seconds rushing in the lt gt drooping zone 11 Compressor stops Stop zone nput current 12 Drooping zone Unchanged I3 zone Reset zone R1378 When a stop current continues for 2 5 seconds after rushing on the stop zone the compressor operation stops If a drooping current is continues for 1 0 second after rushing on the drooping zone the frequency will be 2 Hz drooping Repeating the above drooping continues until the current rushes on the drooping zone without change In the unchanged
10. THERMAL FUSE 540 545 570 580 590 592 RED RED MRM20 MAGNETIC RELAY 1 TRANSISTOR MODULE HL1 HL2 HN1 HN2 HR3 HR4 WHT WHITE N NEUTRAL V1 V2 V3 VARISTOR 30A CONNECTOR YLW YELLOW 3D039654 2MXS40BVMB 2AMXS40BVMB E CQ C M CC 0000707771 o L1R 5 SHC1 t t 2 SR amp i FIN i mm a 1 PCB2 20 93 FU3 a 20 5 MRM10 2 2 ROOMB ml 1 2 24 E 3 UNS J Yeh 1 7 AL IMRCW 20 21 Bo tee 7 POWER SUPPLY iet MIM 99999990 099999 HHR H Hi 50Hz 220 240V gt gt O25 a 220230V 1102 89555465 Sinis F mam 22 T lel tt 1 co gt FIELD WIRING 1 2 RIT PAT RT W 1 Wet Qi M EU outdoor VIE Y2E F1 1 CAPACITOR 1 77254324 CURRENT TRANSFORMER LIQUID PIPE GASPIPE DB1 DB3 DIODE BRIDGE c 4 FU1 FUS FUSE 0153 TRIAC A L LIVE PCB1 PCB2 PRINTED CIRCUIT BOARD Y1E Y2E ELECTRONIC EXPANSION VALVE COIL BLACK 7 L1 COIL O
11. R2873 W Take care not to cut your finger by the fins of the heat exchanger Outdoor air thermistor 1 Loosen the two screws Pull the stop valve cover down and remove it ag Stop valve cover R2875 136 Removal Procedure SiBE12 314 Outdoor Unit Step Procedure Points S Terminal strip board for connection wiring 1 al _ Clamp plate Terminal strip board for En 9 9 power supply Bum s for wiring Fitting port for liquid piping 6 4 flare Fitting port for gas piping R2876 Make sure that the seven claws are fit securely when reassembling 2 Remove the top panel 1 Loosen seven screws of the front panel Loosen the four screws and lift the top panel AER DOSES beg B ai R2877 R2878 Removal Procedure 137 Outdoor Unit R2879 SiBE12 314 Step Procedure Points 3 Undothe claws and pull m The front panel has four the front panel out claws towards you Itis possible to remove the bell mouth 3 Remove the prope
12. 30 propeller fan iiec retenue 138 L prr TREE 115 R UAE 117 Radiation Fin Temperature Rise 117 ei tat nnee DOLCE 119 Radiation fin thermistor 114 LED A RS 23 Room temperature thermistor 97 LEED Ae NEN EN 18 20 21 18 20 21 5 EMEN RAE 18 20 21 um 18 20 Liquid pipe temperature thermistor 114 STO undis metas 23 liquid pipe thermistor cec mRRee 152 SJ einen tton 23 OEE 23 M S20 23 141 Main Circuit Electrolytic Capacitor Check 132 921 uou eene 18 20 21 23 141 Main Structural Parts ccce 38 deseas E el dese vt las eere 21 Mode Hierarchy BARBA REM 42 925 uiu 21 Moisture Protection Function 2 48 tates 18 20 21 Mold Proof Air Filter 37 18 21 23 21 Names of Parts 2 61 c 18 20 21 Night Set Mode tie 32 535 p 18 Note for Multi System acts St ey Saks 79 SBC
13. 135 1 UTE OOP D Tu UE 136 1 1 Removal of the Panels Fan 136 1 2 Removal of the PCB eet tege ett he a ecce 141 1 3 Removal of the Electrical 146 1 4 Removal of the Sound Blanket eee 149 1 5 Removal of the 06 00 nnn 152 1 6 Removal of the Four Way 153 1 7 Removal of the Electronic Expansion 155 1 8 Removal of the 4 44 4000 156 Part B TAI jeEeulcle n M 160 MEM eT 160 1 2 Jumper Settings d e tq uie red uc pac UE 161 Part 9 163 To Piping Diagram Stene 164 1 12 Indoor Units ode eee esee de aer med tere rao 164 1 2 Outd or UNIS 35 5 ERR Eee 166 2 Wiring baarddraden LR eR vis 167 21 Indoor A vande 167 2 2 Outdoor UMS tn tee ene 169 Index PEAR EAA AA ANAA EAA AAE AAAA AE Drawings amp Flow Charts V iv Tab
14. Installation site To install the air conditioner in the following types of environments consult the dealer Places with an oily ambient or where steam or soot occurs e Salty environment such as coastal areas Places where sulfide gas occurs such as hot springs Places where snow may block the outdoor unit The drain from the outdoor unit must be discharged to a place of good drainage Consider nuisance to your neighbours from noises For installation choose a place as described below A place solid enough to bear the weight of the unit which does not amplify the operation noise or vibration A place from where the air discharged from the outdoor unit or the operation noise will not annoy your neighbours Electrical work For power supply be sure to use a separate power circuit dedicated to the air conditioner System relocation Relocating the air conditioner requires specialized knowledge and skills Please consult the dealer if reloca tion is necessary for moving or remodeling 60 System Configuration SiBE12 314 Instruction in case of FTK X S 25 35 BVMB 2 2 Names of Parts y Names of parts B indoor Unit System Configuration 61 Instruction case of FTK X S 25 35 SiBE12 314 Outdoor Unit 17 22 EEE Z 19
15. 1 la loa la 1 la 1 zx 2 17 Use the tester in the DC range LEDA back side of the slit R3051 Service Diagnosis 131 SiBE12 314 5 1 9 Power Transistor Check Check No 13 W Checking the power transistor Never touch any live parts for at least 10 minutes after turning off the circuit breaker e f unavoidably necessary to touch a live part make sure the power transistor s supply voltage is below 50 V using the tester Forthe UVW make measurements at the Faston terminal on the or the relay connector Tester s negative terminal Power transistor UVW Power transistor UVW Tester s positive terminal UVW Mui d UVW iud id Normal resistance Several kohms to several Mohms Abnormal resistance 0 or 5 1 10 Main Circuit Electrolytic Capacitor Check Check No 14 W Checking the main circuit electrolytic capacitor Never touch any live parts for at least 10 minutes after turning off the circuit breaker f unavoidably necessary to touch live part make sure there is no DC voltage using the tester Checkthe continuity with the tester Reverse the pins and make sure there is continuity Keep the tester in the resistance measuring range x x 2 When the pointer swings If the pointer does not swing at all it means the capacitor or if it swings all the way f
16. 21 We 21 TER 23 OL Activation 100 edna nde reds 18 21 ON OFF Button on Indoor Unit 37 nen HR RR PAN TS 18 20 21 Operation Lamp RR 88 S70 a 23 138 141 Outdoor air temperature thermistor 114 HN 21 outdoor air temperature thermistor 146 cue cede 23 141 Outdoor Heat Exchanger Thermistor 39 41 23 141 Outdoor Unit Fan System Check SOW asd uu unen erp 23 141 With DC Motor 130 S99 usitate peste eibi 23 144 Outdoor unit heat exchanger temperature ERE 53 114 Self Diagnosis Digital Display 37 ii Index SiBE12 314 Sensor Malfunction Detection 54 Service Check Function 91 SH condenser s ette 145 Signal Receiver 22 Signal Receiving Sign 37 Signal Transmission Circuit Abnormality 125 Sound Blanket 149 stop valve cover 136
17. MOTOR OPERATED VALVE LIQUID PIPE LIQUID LINE OUTDOOR TEMPARATURE BRANCH HERMISTOR DOA FILTER FILTERTHERMISTORIOLA STOP VALVE PIPErocur HEATEXCHANGER S 64007 RECEIVER RECEIVER Eu a FEILD 7 9CuT T MOTOR OPERATED VALVE LIQUID PIPE LIQUID LINE PIPING ACUT 64 LTERTHERMISTOR 018 Furen STOP VALVE LIQUID c 73CuT 7 9CuT 6 4CuT 64047 6 4CuT lt ROOMB 79CuT DX 6 4 DISTRIBUTOR i HEAT EXCHANGER THERMISTOR DE 4 0CuT 7 9CuT i 9 5CuT PROPELLER FAN GASLINE GAS PIPE STOP VALVE MUFFLER THERMISTOR DGA T 4 9 5CuT 9 5CuT ROOMA AS BRANCH GAS pU 65 9 5CuT V _2SCUT 9 5CuT GAS PIPE STOP VALVE em MUFFLER THERMISTOR DGB de sum GAS 7 REVERSING 9 5CuT 9 5CuT SOLENOID lt 05 7 9CuT VALVE 1 MUFFLER MUFFLER DISCHARGE PIPE THERMISTOR L 230 REFRIGERANT 29607 COOLING ACCUMULATOR HEATING coupressor 30039392 166 Appendix SiBE12 314 Wiring Diagrams 2 Wiring Diagrams 2 1 Indoor Units 2 1 1 Wall Mounted Type FTKS25 35BVMB ATKS25 35BVMB FTXS25 35BVMB ATXS25 35BVMB
18. 111 Gas Pipe Thermistor gt 39 41 gas pipe thermistor 152 D DB wena Lakes 23 H 102 In MEAN eet hes ea ghee oe TP 110 Defrost Control 49 FB tedio kind mede 111 Discharge Pipe 52 uM 113 Discharge Pipe Control 46 eR tn 96 102 Discharge Pipe Temperature 53 Hall IC enneeeeens 133 Discharge Pipe Temperature Control 107 FICS via 23 Discharge pipe temperature thermistor 114 FGA EE 23 Discharge Pipe Thermistor 39 41 52 Heat exchanger temperature thermistor 97 discharge pipe thermistor 147 152 heat exchanger thermistor 152 Discharge Pressure Check 130 Heating Peak cut Control 47 Display PCB tette ms 18 20 22 High Pressure Control in Cooling 108 c 23 E 23 L 100 EIBUE a quits 23 ng m
19. FIELD PIPING 9 5CuT 05 REFRIGERANT FLOW gt COOLING HEATING 4D033698A 1 1 2 Duct Connected CDKS25 35BVMB CDXS25 35BVMB _ INDOOR UNIT _ i _ 6 4CuT e TW Y D b O THERMISTOR A B IN ON HEAT FIELD PIPING EXCH CDXS25BVMB 6 4CuT m SIROCCO FAN CDKS25BVMB CDXS35BVMB s M n CDKS35BVMB FAN MOTOR FIELD PIPING Uk REFRIGERANT FLOW COOLING HEATING C 4D033699A 164 Appendix SiBE12 314 Piping Diagrams 1 1 3 Floor Ceiling Suspended Dual Type FLKS25 35BVMB FLXS25 35BVMB INDOOR UNIT HEAT EXCHANGER D k 2 C ON HEAT EXCH gt FIELD PIPING 6 4CuT SIROCCO FAN I 4 Tall FIELD PIPING B eun THERMISTOR FLXS25 35 FLKS25 35 9 5 9 5 6 4 REFRIGERANT FLOW COOLING HEATING C 4D034012B Appendix 165 Piping Diagrams SiBE12 314 1 2 Outdoor Units 2MKS40BVMB 2AMKS40BVMB __ OUTDOOR UNIT
20. Thermistor as NO specified in its characteristic chart Replace the fin thermistor Above 90 Check the power transistor and fin for looseness If they are found to be fit YES tightly replace the PCB or Check No 9 Check the outdoor unit fan or related Functioning Radiation fin dirty Slightly dirty the power transistor Malfunctioning Too dirty Replace the fan motor Correct the connectors and fan motor leads Replace the outdoor unit PCB Check No 7 Check the installation condition gt Clean up radiation fin R2851 118 Service Diagnosis SiBE12 314 Troubleshooting 4 19 Output Over Current Detection iS Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes An output over current is detected by checking the current that flows in the inverter DC section A position signal error occurs while the compressor is running A speed error occurs while the compressor is running An output over current input is fed from the output over current detection circuit to the microcomputer The system will be shut down if the error occurs 16 times Clearing condition Continuous run for about 5 minutes normal Over current due to defective power transistor Over current due to wrong internal wiring Over current due to abnormal supply voltage Ov
21. SIGNAL RECEIVER WIRELESS REMOTE CONTROLLER PROTECTIVE EARTH C70 RUNNING CAPACITOR FU FUSE H1P H3P PILOT LAMP MOTOR 100 C MIS SWING MOTOR TRANSMISSION Le outdoor FIELD WIRING CAUTION NOTE THAT OPERATION WILL RESTART AUTOMATICALLY IF THE MAIN POWER SUPPLY IS TURNED OFF AND THEN BACK ON AGAIN 1 4 PRINTED CIRCUIT BOARD R1T R2T THERMISTOR 56 537 X11A X21A CONNECTOR Siw OPERATION SWITCH SW7 X1M TERMINAL STRIP 3D033909 168 Appendix SiBE12 314 Wiring Diagrams 2 2 Outdoor Units 2MKS40BVMB 2AMKS40BVMB PCB1 PCB2 10 1 20 3 FU3 AC120A
22. Check 7 gt Change the air outlet grille position Change the installation location Clean the heat exchanger gt Replace the fan motor Repair the connector or fan motor lead wires Installation condition Abnormal check Check No 9 Abnormal Outdoor fan check 1 4 Electronic expansion valve check Abnormal Normal Check No 6 Heat exchanger thermistor check Abnormal Replace the electronic expansion valve or coil Replace the PCB gt Replace the heat exchanger thermistor Replace PCB R2855 Service Diagnosis 109 Troubleshooting SiBE12 314 4 14 Position Sensor Abnormality Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Compressor relay cable disconnected Troubleshooting Check No 13 Refer to P 132 compressor startup failure is detected by checking the compressor running condition through the position detection circuit W The compressor is not running in about 15 seconds after the compressor run command signal is sent Clearing condition Continuous run for about 5 minutes normal The system will be shut down if the error occurs 8 times Compressor relay cable disconnected Compressor itself defective Outdoor unit PCB defective Stop valve closed Input voltage out of specification N Be sure
23. 95 1 94 6 94 2 94 2 Temperature Control Microcomputer Control Microcomputer Control Dimensions HxWxD mm 490 1 050 200 490 1 050 200 Packaged Dimension mm 1 100x566x280 1 100x566x280 Weight kg 16 16 Gross Weight kg 22 22 ee H M L SL dBA 37 34 31 28 37 34 31 29 38 35 32 29 39 36 33 30 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Liquid mm 064 9 6 4 Piping Connection Gas mm 9 5 9 5 Drain mm 18 0 18 0 Drawing No 3D040174A 3D040175A Conversion Formulae kcal n kWx860 Btu h kWx3414 cfm m minx35 3 14 Specifications SiBE12 314 Heat Pump LJ 2 2 Outdoor Units 230V 50Hz Model 2MXS40BVMB 2AMXS40BVMB Cooling Heating Cooling Heating Cooling Capacity kw Power Consumption Running Current A Casing Color Ivory White Ivory White Type Hermetically Sealed Swing Type Hermetically Sealed Swing Type Compressor Model 1YC23GXD 1YC23GXD Motor Output 600 600 Refrigerant Model FVC50K FVC50K Oil Charge L 0 40 0 40 410 410 Retrigerant kg 1 20 1 20 HH 39 35 39 35 m min H 35 32 35 32 L 30 27 30 27 AUTE Rate HH 1126 1010 1126 1010 H 1010 924 1010 924 L 866 779 866 779 Fan Type Propeller Propeller Motor Output Ww 50 50 Starting Current A 62 6 2 Dimension HxWxD mm 640 685
24. 18 1 1 Wall Mounted Type unite tais omi 18 1 2 Duct Connected EE 20 1 3 Floor Ceiling Suspended Dual 21 TA Outdoor Unit ed ceo dei tor eS Den feta er cote be rei d des 23 Function and 25 T Mal socie mem V iaa 26 1 1 Frequency Principle tret ta cune tee e 26 1 2 Power Airflow Dual Flaps Wide Angle Louvers and Auto Swing 28 1 3 Fan Speed Control for Indoor Units 29 LA Programme Dry Function seated Fertig te ater recta ded 30 1 5 Automatic ODOFatior Ode tec a sten t ERE 31 1 6 Night oie e el icri 32 I Intelligent Eye s reet ne fuh 33 1 8 Home Leave 4 440 35 1 9 Inverter Powerful Operation o oe Pectore ote deter de 36 TO OBS FUNCTIONS uo orae ortos oso RO vane BUR 37 2 Function of Main Structural 0 38 2 1 Main Structural 38 2 2 F nction of ee 39 42 Mode TAICTAICNY
25. Cooling Piping Length kcal h kWx860 Indoor 27 CDB 19 CWB ERN Outdoor 35 CDB d S Combination Capacity Cooling 230V 50Hz Combination of Each Capacity KW Total Capacity KW Total Input W Total Current A bi dd Indoor Unit A room B room Rating min max Rating min max Rating min max Rating 2 5 2 50 2 50 1 20 3 00 755 340 1020 3 5 1 9 4 7 94 3 5 3 15 3 15 1 20 3 60 1120 340 1440 5 1 1 9 6 5 95 2 542 5 1 95 1 95 3 90 1 50 4 20 1215 400 1490 5 6 2 2 6 8 94 2 543 5 1 75 2 15 3 90 1 50 4 20 1215 400 1490 6 2 2 6 8 94 Cooling capacity is based 27 CDB 19 CWB Indoor temperature 35 CDB Outdoor temperature 3D040485 1 12 Specifications SiBE12 314 Heat Pump 2 Heat Pump 2 1 Indoor Units Wall Mounted Type 230V 50Hz Model FTXS25BVMB FTXS35BVMB Cooling Heating Cooling Heating Rated Capacity 2 5kW Class 3 5kW Class Front Panel Color White White H 7 4 261 7 5 265 7 4 261 7 5 265 m8 min M 5 8 205 6 3 222 5 9 208 6 3 222 Alr Flow Ratas L 4 1 145 5 0 177 44 155 5 2 184 SL 3 6 127 4 5 15
26. 124 Four Way tc scie egt M 153 series nectit rentre teta 91 Four Way Valve Abnormality 105 Auto SUMING 28 Four Way Valve Operation Compensation 45 AUTO DRY COOL HEAT FAN Operation 67 Four Way Valve Performance Check 127 Automatic Operation ios ese 31 Four Way Valve Switching 45 Auto restart PUNOMOM tute iue 37 Freeze up Protection Control 47 Freeze up Protection Control or High Pressure 94 CA te Q 97 Frequency 1 43 e Et 97 Frequency Principle 26 Capacitor Voltage Check 131 front panel locut 137 Cleaning 81 FUZZ tractet e i ra ee bee 23 Compressor Bot REN TE HEU ERA 156 al o ete ee ene ES 23 Compressor 101 Compressor Overload 100 Compressor Protection Function 45 Gas Pipe Isothermal Control During Cooling 52 Control POB 18 20 21 24 Gas pipe temperature thermistor 114 CT or Related Abnormality
27. 20 18 21 eee Sn L m Indoor Unit 1 Air filter 12 Indoor Unit ON OFF switch page 10 2 Photocatalytic deodorizing filter and Push this switch once to start operation Air purifying filter Push once again to stop it These filters are attached to the inside of the air The operation mode refers to the following filters table 3 Air inlet Temperature Air flow 4 Front grille AES 5 Grille tab 25 C AUTO 6 Room temperature sensor It senses the air temperature around the unit This switch is useful when the remote controller is missing 13 Operation lamp green 14 TIMER lamp yellow page 20 7 INTELLIGENT EYE sensor t detects the movements of people and auto matically switches between normal operation and energy saving operation page 18 15 HOME LEAVE lamp red page 16 8 Display 16 Signal receiver 9 Air outlet e t receives signals from the remote controller When the unit receives a signal you will hear a 10 Flaps 2 blades page 12 short beep 11 louvers vertical blades e Operation start beep beep The louvers are inside of the air outlet Settings changed beep page 13 e Operation stop beeeeep B Outdoor Unit 17 Air inlet Back and side 21 Earth terminal 18 Air outlet e Itis inside of this cover 19 Refrigerant piping and inter unit cable 22 Outside air temperature s
28. I 42 3 2 Frequency Control 43 3 3 Controls at Mode Changing 45 3 4 Discharge Pipe CODITOL e ene rece th bed eee ee 46 Input Current CORTON tar zen 46 3 6 Freeze up Protection 47 3 7 Heating Peak cut Control teneri rete tine e perder ee e ean 47 nc 48 3 9 Moisture Protection Function 2 48 Table of Contents SiBE12 314 Part 5 System Part 6 Service 3 10 Control cree 49 3 11 Electronic Expansion Valve 50 MAUDMGUONS soos dea ont one ipte etch Beaman ire 54 3 13 Preventing Indoor 2 4 11 55 3 14 Forced Operation 55 3 15 Additional Furieion ic oir Re e ee ms eni s acetate 55 Te System ConfiquEallOrico otii peii pna o eI ISP Et EE eH ONE 58 2 Instruction in case of FTK X S 25 35 59 Zl Safety PIecaltioris xut dirette etu o eode aee ei 59 2 2 Names of Parts eerie e eel ec e eciam 61 2 3 Preparation before 8 64 2 4 AUTO DRY COOL HEAT FAN
29. NO gt Correct the wiring or piping error Replace the defective Ev or YES Check No 6 Check the outdoor unit heat exchanger thermistor Thermistor as specified NO Coil gt Replace the heat exchanger in its characteristic chart YES Check No 6 Check the room temperature thermistor Thermistor as specified NO thermistor Replace the room in its characteristic Change the gas to let moisture out of the unit after drawing a vacuum YES temperature thermistor Replace the room Error again temperature thermistor or indoor unit heat exchanger thermistor Do the vacuum drying Replace the indoor unit PCB R3039 Service Diagnosis 99 Troubleshooting SiBE12 314 4 7 OL Activation Compressor Overload Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Check No 4 Refer to P 126 Check No 5 Refer to P 127 Check No 6 Refer to P 128 Check No 11 Refer to P 131 ES A compressor overload is detected through compressor OL m f the compressor OL is activated twice the system will be shut down W The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time The operating temperature condition
30. R2911 Removal Procedure 147 Outdoor Unit SiBE12 314 Step Procedure Points Lift the electrical box up N ISS lt eet 5 Uy Wire clamp Release wire clamp from the back side of the electrical box Outdoor air thermistor Heat exchanger thermistor thermistor 2 5 82913 BF Discharge pipe Remove the electrical box 148 Removal Procedure SiBE12 314 Outdoor Unit 1 4 Removal of the Sound Blanket Procedure N Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Loosen the five screws of the right side panel 2915 Release clamp of the compressor lead m m the partition Y REA fq M Sd R2917 R2918 Removal Procedure 149 Outdoor Unit SiBE12 314 Step Procedure Points 3 The partition plate is W Fitthe claw of the partition fixed to the bottom plate to the bottom frame frame with a claw when reassembling Lift it and pull out towards you 4 Loosen two screws of the partition plate R2919 5 Untie the fixing string Loosen the screw to remove and remove the sound the reactor f
31. Remote Control Adaptor ol Normal Open Contact Option Programme Dry Function ol DIII NET Compatible Adaptor Remote Wireless Lifestyle New Powerful Operation E EN Controller Wired Convenience Non Inverter Inverter Powerful Operation O Priority Room Setting Cooling Heating Made Lock Home Leave Operation Indoor Unit On Off Switch Signal Reception Indicator Temperature Display e Another Room Operation Notes Holding Functions x Digital Only No Functions List of Functions SiBE12 314 8 List of Functions SiBE12 314 Part 2 Specifications opener 10 del Indoor Units idi ennen reo re cree pe 10 1 2 Outdoor 12 2 EE 13 21 Indoor Units 9 002 13 22 Outdoor Uhlls 15 Specifications 9 Cooling Only SiBE12 314 1 Cooling Only 1 1 Indoor Units Wall Mounted Type 230V 50Hz Model FTKS25BVMB FTKS35BVMB Rated Capacity 2 5kW Class 3 5kW Class Front Panel Color White White H 7 4 261
32. 76 System Configuration SiBE12 314 Instruction in case of FTK X S 25 35 BVMB 2 10 TIMER Operation Operation Timer functions are useful for automatically switching the air conditioner on or off at night or in the morning You can also use OFF and ON in combination To use OFF TIMER opera tion Check that the clock is correct If not set the clock to the present time page 9 1 Press OFF TIMER button HOME LEAVE 0 00 displayed amp o blinks 2 Press TIMER Setting button until the time setting reaches the point you like Every pressing of either button increases or decreases the time setting by 10 min utes Holding down either button changes the setting rapidly 3 Press OFF TIMER button again The TIMER lamp lights up HOPE SENSOR POWERFUL SILENT To cancel the OFF TIMER operation 4 Press CANCEL button The TIMER lamp goes off Notes When TIMER is set the present time is not displayed Once you set ON OFF TIMER the time setting is kept in the memory The memory is canceled when remote controller batteries are replaced When operating the unit via the ON OFF Timer the actual length of operation may vary from the time entered by the user Maximum approx 10 minutes NIGHT SET MODE When the OFF TIMER is set the air conditioner automatically adjusts the temperature setting 0 5 C up in COOL
33. Check the outdoor unit fan system Fan motor lead wire connector disconnected Reconnect Outdoor unit fan running Outdoor unit fan system functioning Go to Check No 15 R2857 130 Service Diagnosis SiBE12 314 Check 5 1 7 Inverter Units Refrigerant System Check Check No 11 Refrigerant system check 15 the discharge YES thermister disconnected from the holder s the temperature YES Correct the problem of the four way valve suction pipe abnormaly high YES Is any moisture Four way valve defective Replace the four way valve found in sight glass NO Check for gas leaks See the section on insufficient gas detection Conduct the check after operating the equipment for a sufficient length of time gt Conduct vacuum drying 5 1 8 Capacitor Voltage Check Check No 12 gt Replace the refrigerant R3050 never to touch any live parts Diode Bridge DB1 back side of the PCB Before this checking be sure to check the main circuit for short circuit Checking the capacitor voltage e With the circuit breaker still on measure the voltage according to the drawing Be careful AZEN ZES 11 AN N si 3 PN Sed ied p
34. Specifications 11 Cooling Only SiBE12 314 1 2 Outdoor Units 230V 50Hz Model 2MKS40BVMB 2AMKS40BVMB Cooling Capacity kW Power Consumption Running Current A Casing Color Ivory White Type Hermetically Sealed Swing Type Compressor Model 1YC23GXD Motor Output Ww 600 Refrigerant Model FVC50K Oil Charge L 0 40 7 410 Refrigerant Charge kg 0 98 HH 39 m min H 35 L 30 Air Flow Rate HH 1126 H 1010 L 866 Fan Type Propeller Motor Output Ww 50 Starting Current A 5 6 Dimension HxWxD mm 640x685x285 Packaged Dimension WxDxH mm 800x366x676 Weight kg 39 Gross Weight kg 42 Operation Sound pressure dBA 47 Sound Silent Mode dBA 43 Sound Power dBA 62 Liquid mm 9 6 42 iping Connection Ges mm 09 5 2 Drain mm 18 Heat Insulation Both Liquid amp Gas Pipes No of Wiring Connection 3 for Power Supply 4 for Interunit Wiring T 30 for Total of Each Room Max Piping Length 20 for One Room Min Piping Length m 1 5 for One Room Amount of Additional Charge g m 20 20m or more 15 between Indoor Unit and Outdoor Unit Max Installation Height Difference m 7 5 between Indoor Units Drawing No 3D040484 30040485 Notes 1 See Combination Capacity an Ei 2 The data are based on the conditions shows in the table below
35. Tips for saving energy Be careful not to cool heat the room too much Keeping the temperature setting at a moderate level helps save energy Recommended temperature setting Cover windows with a blind or a curtain For cooling 26 C 28 Blocking sunlight and air from outdoors increases the cooling heating effect For heating 20 C 24 Clogged air filters cause inefficient operation and waste energy Clean them once in about every two weeks Please note The air conditioner always consumes 15 35 watts of electricity even while it is not operating If you not going to use the air conditioner for a long period for example in spring or autumn turn the breaker OFF Use the air conditioner in the following conditions Mode Operating conditions If operation is continued out of this range COOL Outdoor temperature 2MK X S 10 to 46 A safety device may work to stop the operation S AMK X S 10 to 46 C In multi system it may work to stop the operation of the out RK X S 10 to 46 C door unit only Indoor temperature 18 to 32 Condensation may occur on the indoor unit and drip Indoor humidity 80 max Outdoor temperature 2MXS 10 to 21 C A safety device may work to stop the operation 3 4MXS 15 to 21 C RXS 15 to 21 C Indoor temperature 10 to 30 C Outdoor temperature 2MK X S 10 to 46 A safety device may work to stop the operatio
36. 2 0 C down in HEAT to prevent excessive cooling heating for your pleasant sleep 20 System Configuration 77 Instruction in case of 5 25 35 SiBE12 314 To use ON TIMER operation Check that the clock is correct If not set the clock to the present time DAIKIN page 9 1 Press ON TIMER button 0015 displayed blinks 2 Press TIMER Setting button until the time setting reaches EE the point you like Every pressing of either button POWERFUL increases or decreases the time setting Y by 10 minutes Holding down either but ton changes the setting rapidly MODE GEN GWO 3 Press ON TIMER button again 1 3 The TIMER lamp lights up 4 9 8 8 2 operation 4 Press CANCEL button The TIMER lamp goes off B To combine ON TIMER and OFF TIMER A sample setting for combining the two timers is shown below Example Present time 11 00 PM The unit operating OFF TIMER at 0 00 a m ON TIMER at 7 00 a m Combined ATTENTION In the following cases set the timer again After a breaker has turned OFF After a power failure After replacing batteries in the remote controller 21 78 System Configuration SiBE12 314 Instruction in case of FTK X S 25 35 BVMB 2 11 Note for Multi System y Note for Multi
37. L 0 5 C Thermostat setting temperature Phase control R2820 Function and Control 29 Main Functions SiBE12 314 1 4 Programme Dry Function Programme dry function removes humidity while preventing the room temperature from In Case of Inverter Units lowering Since the microcomputer controls both the temperature and air flow volume the temperature adjustment and fan adjustment buttons are inoperable in this mode The microcomputer automatically sets the temperature and fan settings The difference between the room temperature at startup and the temperature set by the microcomputer is divided into two zones Then the unit operates in the dry mode with an appropriate capacity for each zone to maintain the temperature and humidity at a comfortable level Room temperature at startup Temperature ON point at which operation starts Frequency switching point Temperature difference for operation stop Room temperature at 24 1 5 startu P 0 5 C 18 1 8 1 0 C 17 C ON point 050 switching point OFF point 5 5 5 S S t t t Cono LHz op LHz op LHz op X 55Hz Extra low air flow 55 2 Indoor unit fan Extra low air flow Stop Stop Stop Low air flow Low air flow LHz indicates low frequency Item marked with varies depending on models R135
38. PROTECTIVE EARTH S1930 CONNECTOR C70 RUNNING CAPACITOR SIW OPERATION SWITCH FU FUSE X1M TERMINAL STRIP 3D033599A 2 1 2 Duct Connected Type CDKS25 35BVMB CDXS25 35BVMB 1 d HIJ 1 i PCB2 Fu fgl 2_ Z BLK 1 mm 3 31 al S26 is WHT 2 d outdoor T PED 3 TERMINAL FOR FIELD WIRING ore CENTRALIZED CONTROL TRANSMISSION L poanian 1W om 521 IRCUIT si CAUTION 1 NOTE THAT OPERATION WILL SIGNAL 57 RESTART AUTOMATICALLY IF RECEIVER THE MAIN POWER SUPPLY IS RTH1 532 X11A TURNED OFF AND THEN BACK Lx ON AGAIN Saar ae 1 m 1 cL E 130 H1P H2P PILOT LAMP RaT Fdo t 1 Ll ee ee ua PCB1 PCB2 PRINTED CIRCUIT BOARD WIRELESS R1T R2T THERMISTOR PROTECTIVE EARTH S1 S32 RTH1 X11A CONNECTOR C70 RUNNING CAPACITOR S1W OPERATION SWITCH FU FUSE X1M TERMINAL STRIP 3D033598A Appendix 167 Wiring Diagrams SiBE12 314 2 1 3 Floor Ceiling Suspended Dual Type FLKS25 35BVMB FLXS25 35BVMB LED LED LED 9 9 9 H3P 4 S1W CIRCUIT
39. When starting compressor for heating When the operating mode changes from the previous time When starting compressor for starting defrosting or resetting When starting compressor for the first time after the reset with the power is ON When starting compressor after operation stop by the cooling heating mode change over malfunction Set the lower limit frequency to 68 model by model Hz for 70 seconds with the OR conditions with 1 through 5 above 3 3 4 3 Minutes Stand by Prohibit to turn ON the compressor for 3 minutes after turning it off Except when defrosting Only for Heat Pump Model nonr 3 3 5 Compressor Protection Function When turning the compressor from OFF to ON the upper limit of frequency must be set as follows The function must not be used when defrosting only for heat pump model FCG 3 90 Frequency FCG2 72 FCG 1 62 TCG 1 110 1 TCG2 660 TCGisec TCG2sec TCG3sec Time TCG 90 Poia Function and Control 45 Control Specification SiBE12 314 3 4 Discharge Pipe Control Outline The discharge pipe temperature is used as the compressor s internal temperature If the discharge pipe temperature rises above a certain level the operating frequency upper limit is Set to keep this temperature from going up further Detail Divide the Zone A C Stop zone
40. prepare wet cloth so as to extinguish fire immediately Warning Ventilate when refrigerant leaks during the work If refrigerant contacts fire it will cause to arise toxic gas N Caution Be careful about the pipes which were heated up by a gas brazing machine so as not to get burnt your hands Removal Procedure 157 Outdoor Unit SiBE12 314 158 Removal Procedure SiBE12 314 Part 8 Others ES Dl RC 160 EEX LAAT OMe rte eit rre 160 12 Jumper Sells uci co pd o bci el Bur dur e Ue 161 Others 159 Others SiBE12 314 1 Others 1 1 Explanation 1 1 1 Test Run from the Remote Controller Trial Operation and Testing 1 Measure the supply voltage and make sure that it falls in the specified range 2 Trial operation should be carried out in either cooling or heating mode For Heat pump In cooling mode select the lowest programmable temperature in heating mode select the highest programmable temperature W Trial operation may be disabled in either mode depending on the room temperature m Aftertrial operation is complete set the temperature to a normal level 26 C to 28 C in cooling mode 20 C to 24 C in heating mode W For protection the system disables restart operation for 3 minutes after it is turned off For Cooling Select the lowest programmable temperature operation in case Trial operation in coolin
41. washed by a technician Consult the service shop where you bought the air conditioner The outdoor fan rotates while After operation is stopped the air conditioner is not in The outdoor fan continues rotating for another 60 operation seconds for system protection Bi While the air conditioner is not in operation When the outdoor temperature is very high the out door fan starts rotating for system protection The operation stopped For system protection the air conditioner may stop suddenly operating on a sudden large voltage fluctuation OPERATION lamp is on It automatically resumes operation in about 3 minutes 27 84 System Configuration SiBE12 314 Instruction in case of FTK X S 25 35 BVMB Check again Please check again before calling a repair person Case Check The air conditioner does not Hasn t a breaker turned OFF or a fuse blown operate Isn t it a power failure OPERATION lamp is off Are batteries set in the remote controller s the timer setting correct Cooling Heating effect is poor Are the air filters clean s there anything to block the air inlet or the outlet of the indoor and the outdoor units s the temperature setting appropriate Are the windows and doors closed Are the air flow rate and the air direction set appropriately s the unit set to the INTELLIGENT EYE mode page 18 Operation stops suddenly Are th
42. 101 FINS isanne 23 ENEN 102 HOME LEAVE Operation 73 H M 103 Home Leave Operation irte tranne 35 ENEN 105 Hot Start FUNCHON areae eraat 37 Electrical BOX 22 8 8 146 me 23 Electrical Box Temperature 3ISG 225 115 lat 23 Electronic Expansion Valve 155 Electronic Expansion Valve Check 126 Index i SiBE12 314 Outdoor Unit PCB Abnormality 125 Indoor Heat Exchanger Thermistor 40 41 OUTDOOR UNIT SILENT Operation 72 Indoor Liquid Pipe Thermistor 40 Output Over Current Detection 119 Indoor Unit PCB Abnormality 93 Over 54 Input Current Control 46 eid een 54 Input Over Current Detection 103 Over voltage Detection 123 Installation Condition Check 129 Insufficient 121 P Insufficient Gas Control cR 54 tee Maer 113 Intelligent Eye
43. 285 640 685 285 Packaged Dimension WxDxH mm 800x366x676 800x366x676 Weight kg 39 39 Gross Weight kg 42 42 Operation Sound Pressure dBA 47 48 47 48 Sound Silent Mode dBA 43 44 43 44 Sound Power dBA 62 62 um n Liquid mm 9 6 4x2 9 6 4x2 ih Gas mm 095x2 2952 Drain mm 918 918 Heat Insulation Both Liquid amp Gas Pipes Both Liquid amp Gas Pipes No of Wiring Connection 3 for Power Supply 4 for Interunit Wiring 3 for Power Supply 4 for Interunit Wiring Max Piping Length 30 for Total of Each Room 30 for Total of Each Room 20 20 Min Piping Length m 1 5 for One Room 1 5 for One Room Amount of Additional Charge g m 20 20m or more 20 20m or more Max Installation Height Difference 15 between Indoor Unit and Outdoor Unit 15 between Indoor Unit and Outdoor Unit 7 5 between Indoor Units 7 5 between Indoor Units Drawing 3D040482 30040483 Notes 1 See Combination Capacity 2 The data are based on the conditions shows in the table below Conversion Formulae Cooling Heating Indoor 27 CDB 19 CWB Outdoor 35 Indoor 20 Outdoor 7 CDB 6 CWB Piping Length kcal h kWx860 Btu h kWx3414 7 5m cfm m minx35 3 Combination Capacity Cooling 230V 50Hz Combination of Each capacity kW Total capacity kW Total inpu
44. 314 5 Check 5 1 How to Check 5 1 1 Electronic Expansion Valve Check Check No 4 Conduct the followings to check the electronic expansion valve EV 1 see if the EV connector is correctly inserted in the Compare the EV unit and the connector number 2 the power off and back on again and check to see if all the EVs generate latching sound 3 If any of the EVs does not generate latching noise in the above step 2 disconnect that connector and check the continuity using a tester Check the continuity between pins 1 3 and 6 and between pins 2 4 and 5 If there is no conductivity between the pins the EV coil is faulty 4 f no EV generates latching sound in the above step 2 the outdoor unit PCB is faulty 5 f the continuity is confirmed in the above step 3 mount a good coil which generated latching sound in the EV unit that did not generate latching sound and check to see if that EV generates latching sound If latching sound is generated the outdoor unit PCB is faulty latching sound is not generated the EV unit is faulty n Note Please note that the latching sound varies depending on the valve type Valve Body Condition Symptom Check Method Measure 1 Valve body catches at fully opened or half Reset power supply and conduct cooling opened position operation unit by unit Symptom Cooling A i Water leakage at the no operation unit Check the liquid pipe tempera
45. 33 Panels Ren 136 INTELLIGENT EYE Operation 75 PCBs ettet e n tees ten 141 Intelligent Eye Sensor PCB 18 Photocatalytic Deodorizing Filter 37 Intelligent Eye Sensor 162 PI Gonttol cote te Md 44 Inverter Powerful Operation EORR MS 36 Piping Diagrams PU ES 164 Inverter Units Refrigerant System Check 131 Position Sensor Abnormality 110 Power Supply PCB 22 J Power Transistor Check 132 A E E tr 113 Power Airflow Dual Flaps 28 d 161 POWERFUL Operation 71 NG p P 113 Powerful Operation Mode 55 jd 113 Preheating Operation 45 dO os a M M LE AE LAE 23 113 Preventing Indoor Freezing 55 JA occ 18 20 21 161 Printed Circuit Board JB Pm 18 20 21 161 Connector Wiring Diagram 18 dO eee DN AU 18 20 21 161 Problem Symptoms and Measures 90 Jumper Settings eerte 161 Programme Dry Function
46. 35 BVMB SiBE12 314 To change the air flow rate setting 5 Press FAN setting button DRY mode AUTO or COOL or HEAT or FAN mode Five levels of air flow rate setting to 5 plus Al 24 are available The air flow rate setting is not variable eo eoo Indoor unit quiet operation When the air flow is set to 2 the noise from the indoor unit will become quieter Use this when making the noise quieter The unit might lose power when the fan strength is set to a weak level To change the air flow direction page 12 NOTE Note on HEAT operation Since this air conditioner heats the room by taking heat from outdoor air to indoors the heating capacity becomes smaller in lower outdoor temperatures If the heating effect is insufficient it is rec ommended to use another heating appliance in combination with the air conditioner The heat pump system heats the room by circulating hot air around all parts of the room After the start of heating operation it takes some time before the room gets warmer n heating operation frost may occur on the outdoor unit and lower the heating capacity In that case the system switches into defrosting operation to take away the frost During defrosting operation hot air does not flow out of indoor unit Note on DRY operation The computer chip works to rid the room of humidity while main
47. 7 4 261 m2 min M 5 8 205 5 9 208 Air Fon Rates cfm L 4 1 145 4 4 155 SL 3 6 127 3 8 134 Type Cross Flow Fan Cross Flow Fan Fan Motor Output Ww 18 18 Speed Steps 5 Steps Silent and Auto 5 Steps Silent and Auto Air Direction Control Right Left Horizontal and Downward Right Left Horizontal and Downward Air Filter Removal Washable Mildew Proof Removal Washable Mildew Proof Running Current Rated A 0 18 0 18 Power Consumption Rated Ww 40 40 Power Factor 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Dimensions HxWxD mm 273 784 195 273 784 195 Packaged Dimension mm 834x325x258 834x325x258 Weight kg 8 8 Gross Weight kg 11 11 Ae ud H M L SL dBA 38 32 25 22 39 33 26 23 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Liquid mm 6 4 9 6 4 Piping Connection Gas mm 9 5 9 5 Drain mm 18 0 18 0 Drawing No 3D040162A 3D040163A Model ATKS25BVMB ATKS35BVMB Rated Capacity 2 5kW Class 3 5kW Class Front Panel Color White White H 7 8 275 8 0 282 6 0 212 6 2 219 Air Flow Rates cfm L 4 2 148 4 5 159 SL 3 5 124 3 8 134 Type Cross Flow Fan Cross Flow Fan Fan Motor Output Ww 18 18 Speed Steps 5 Steps Silent and Auto 5 Steps Silent and Auto Air Direction Control Right Left Horizontal and Downward Right Left Horizontal and Downward Air Filter Removal Washable Mildew Proof Removal Washable Mildew Proof Running Current Rated A 0 18 0 18 Pow
48. 7 m B To fix the remote controller holder on the wall 1 Choose a place from where the sig nals reach the unit 2 Fix holder to a wall a pillar etc with the screws supplied with the holder Remote controller holder 3 Place the remote controller in the remote controller holder To remove pull it upwards ATTENTION About remote controller Never expose the remote controller to direct sunlight Dust on the signal transmitter or receiver will reduce the sensitivity Wipe off dust with soft cloth Signal communication may be disabled if an electronic starter type fluorescent lamp such as inverter type lamps is in the room Consult the shop if that is the case f the remote controller signals happen to operate another appliance move that appliance to some where else or consult the shop System Configuration 65 Instruction in case of 5 25 35 SiBE12 314 To set the clock 1 Press CLOCK button DAIKIN OG ig displayed blinks 2 Press TIMER setting button to set the clock to the present time HOME LEAVE ONOFF Holding W button rap idly increases or decreases the time dis 3 Press CLOCK button 5 blinks Turn the breaker Turning ON the breaker opens the flap 1 3 then closes it again This is a normal procedure NOTE
49. A2 gt R3038 2 Press the timer cancel button repeatedly until a continuous beep is produced W The code indication changes in the sequence shown below and notifies with a long beep No Code No Code No Code 1 00 11 21 uA 2 uud 12 22 R5 3 F3 13 H8 23 48 4 14 J3 24 5 15 15 25 6 AG 16 RI 26 L3 7 E5 17 4 27 LY 8 LE 18 t5 28 H5 9 tS 19 9 29 H1 10 00 20 30 ue il Note 1 A short beep and two consecutive beeps indicate non corresponding codes 2 cancel the code display hold the timer cancel button down for 5 seconds The code display also cancels itself if the button is not pressed for 1 minute Service Diagnosis 91 Troubleshooting SiBE12 314 4 Troubleshooting 4 1 Error Codes and Description Code Indication Description de System 20 Normal Ut Insufficient gas 121 ue Over voltage detection 123 uud Outdoor unit PCB abnormality or signal transmission circuit 125 abnormality uA Unspecified voltage between indoor and outdoor units 124 uH Anti icing function in other rooms 124 8 Indoor unit abnormality 93 AS Freeze up protection control or high pressure control 94 86 Fan motor related abnormality 96 cy Heat exchanger temperature thermistor abnormality 97 cg Room temperature thermistor abnormality 97 55 Anti ic
50. Available only for cooling operation NIGHT QUIET Mode requires initial programming during installation Please consult your retailer or dealer for assistance NIGHT QUIET Mode reduces the operation noise of the outdoor unit during the night time hours to prevent annoyance to neighbors The NIGHT QUIET Mode is activated when the temperature drops 5 C or more below the highest temperature recorded that day Therefore when the temperature difference is less than 5 C this function will not be activated NIGHT QUIET Mode reduces slightly the cooling efficiency of the unit OUTDOOR UNIT SILENT Operation page 15 1 With the Priority Room Setting present but inactive or not present When using the OUTDOOR UNIT SILENT operation feature with the Multi system set all indoor units to OUTDOOR UNIT SILENT operation using their remote controllers When clearing OUTDOOR UNIT SILENT operation clear one of the operating indoor units using their remote controller However OUTDOOR UNIT SILENT operation display remains on the remote controller for other rooms We recommend you release all rooms using their remote controllers 2 With the Priority Room Setting active See Priority Room Setting on the next page Cooling Heating Mode Lock Available only for heat pump models The Cooling Heating Mode Lock requires initial programming during installation Please consult your retailer or dealer for assistance The Cooling Heating Mode Lock set
51. Decision Conditions Supposed Causes Troubleshooting UAUA A wrong connection is detected by checking the combination of indoor and outdoor units on the microcomputer Operation halt due to the anti icing function in other rooms Operation halt due to unspecified voltage between indoor and outdoor units PCB wrongly connected Operation halt due to the anti icing function in other rooms Wrong connections at the indoor unit Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Error displaying air conditioner running Supply voltage as specified YES NO NO gt The anti icing function is activated in other rooms Refer to A5 Correct Check the model number Normal YES NO Check the combination of all the models being connected gt R3045 124 Service Diagnosis SiBE12 314 Troubleshooting 4 23 Outdoor Unit PCB Abnormality or Signal Transmission Circuit Abnormality Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Ud The data received from the outdoor unit in indoor unit outdoor unit signal transmission is checked whether it is normal When the data sent from the outdoor unit cannot be received normally or when th
52. For cleaning do not use hot water above 40 C benzine gasoline thinner nor other volatile oils pol ishing compound scrubbing brushes nor other hand stuff After cleaning make sure that the front grille is securely fixed 24 System Configuration 81 Instruction in case of FTK X S 25 35 SiBE12 314 1 Open the front grille page 24 2 Pull out the air filters Push a little upwards the tab at the center of each air filter then pull it down 3 Take off the air purifying filter photocatalytic deodorizing filter Hold the recessed parts of the frame and unhook the four claws 4 Clean or replace each filter See below Photocatalytic deodorizing filter 5 Setthe air filter air purifying filter and photocatalytic deodorizing filter as they were and close the front grille Insert claws of the filters into slots of the front grille Close the front grille slowly and push the grille at the 3 points 1 on each side and 1 in the middle B AirFilter 1 Wash the air filters with water or clean them with vacuum cleaner e If the dust does not come off easily wash them with neutral detergent thinned with lukewarm water then dry them up in the shade tis recommended to clean the air filters every two weeks Air Purifying Filter green Replace approximately once every 3 months 1 Detach the filter element and attach a new one e Insert with the green side
53. If you do not follow these instructions exactly the unit may cause property damage personal injury or loss of life cause minor or moderate property damage or personal injury Q Never do Q Be sure to follow the instructions Never cause the air conditioner including the remote 6 Be sure to earth the air conditioner controller to get wet Never touch the air conditioner including the remote 9 controller with a wet hand N WARNING e n order to avoid fire explosion or injury do not operate the unit when harmful among which flammable or corrosive gases are detected near the unit S e tis not good for health to expose your body to the air flow for a long time Do not put a finger a rod or other objects into the air outlet or inlet As the fan is rotating at a high speed it will cause injury Do not attempt to repair relocate modify or reinstall the air conditioner by yourself Incorrect work will cause electric shocks fire etc For repairs and reinstallation consult your Daikin dealer for advice and information reason any refrigerant happens to leak into the room make sure it does not come in contact with any flame as of gas heaters kerosene heaters or gas range fthe air conditioner is not cooling heating properly the refrigerant may be leaking so call your dealer When carrying out repairs accompanying adding refrigerant check the content of the repairs with our service staff e Do not attempt to
54. Indoor Unit Silent Operation o Flexibility Multi Split Split Type Compatible ol Indoor Unit Night Quiet Mode Automatic Flexible Voltage Correspondence Outdoor Unit Silent Operation VM High Ceiling Application Manual Intelligent Eye Chargeless 3 Quick Warming Function Power Selection Hot Start Function __ Remote 5 Rooms Centralized Controller olo Control Option Automatic Defrosting Remote Control Adaptor Normal Open Pulse Contact Operation Automatic Operation Remote Control Adaptor olo Normal Open Contact Option Programme Dry Function Compatible Adaptor eTe Fan Only O O Remote Wireless Lifestyle New Powerful Operation Controller Wired zs ee Convenience Non Inverter Inverter Powerful Operation Priority Room Setting Cooling Heating Mode Lock Home Leave Operation Indoor Unit On Off Switch Signal Reception Indicator OO Temperature Display Another Room Operation Notes Holding Functions Digital Only No Functions List of Functions SiBE12 314 Cooling Only e ea m a gt gt C
55. POWERFUL operation operation capacity will be concentrated in Room A In such a case the cooling heating efficiency of the units in Rooms B C and D may be slightly reduced 3 Priority when using OUTDOOR UNIT SILENT operation Example Room A is the Priority Room in the examples Just by setting the unit in Room A to SILENT operation the air conditioner starts OUTDOOR UNIT SILENT operation You don t have to set all the operated indoor units to SILENT operation Maximum Power Input Limitation The Maximum Power Input Limitation needs to be set when the unit is installed Contact DAIKIN dealer This function limits the power input of the unit to 1700W It is recommended for locations with low capacity circuit breakers 2 List of functions and applicable models 2MKS 2AMKS 3MKS 3MXS 4 5 4MXS Priority Room Setting OOo _NGHTQUET Mede Cooling HeatingMode Lock Maximum Power Input Limitation 0 Function available Function unavailable NOTE Cooling capacity will drop if the Maximum Power Input Limitation is used 23 80 System Configuration SiBE12 314 Instruction in case of FTK X S 25 35 BVMB 2 12 Care and Cleaning y Care and Cleaning CAUTION Before cleaning be sure to stop operation turn the breaker OFF Units indoor unit Outdoor unit and Remote co
56. Selection Hot Start Function olo Remote 5 Rooms Centralized Controller olo Control Option Automatic Defrosting Remote Control Adaptor Normal Open Pulse Contact OO Option Operation Automatic Operation olo Remote Control Adaptor olo Normal Open Contact Option Programme Dry Function olo Compatible Adaptor olo Fan Only O O Remote Wireless Lifestyle New Powerful Operation 15 Controller Wired ze eo Convenience Non Inverter Inverter Powerful Operation Priority Room Setting e Cooling Heating Made Lock Home Leave Operation o uo Indoor Unit On Off Switch Signal Reception Indicator OO Temperature Display I Another Room Operation Notes Holding Functions Digital Only No Functions List of Functions SiBE12 314 5 5 a 2 8 i i Category Functions Category Functions D is N Basic Inverter olo Health amp Air Purifying Filter with Bacteriostatic ol Function with Inverter Power Control Clean amp Virustatic Functions Operation Limit for Cooling C 10 Photocatalytic Deodorizing Filter Orle 46 Operation Limit for Heating C 10 Air Purifying Filter with 155 Photocatalytic D
57. Step 11 Procedure Points 12 Disconnect the connector for fin thermistor S93 13 Disconnect the two SH condenser lead wires Lift the PCB from the heat exchanger side and release from the two claws SH condenser lead wire grey nn 7 82901 M Mind that not to break the PCB with excessive stress because it sticks fast to the radiator fin Be sure to use silicon when reassembling W Silicon parts no 1172698 144 Removal Procedure SiBE12 314 15 Loosen the two screws of the radiator fin 16 Disconnect the reactor lead wires and remove the SH condenser 17 Remove the screw of the electrical box V A LA By all NS 50 f 13 880 520 521 52 570 Eu E Glass tube fuse FU2 R2902 92903 oo gt R2904 Outdoor Unit Step Procedure Points 14 The illustration shows the layout of the PCB amp parts sid
58. System What is a Multi System This system has one outdoor unit connected to multiple indoor units Functions depend on the model See the list of functions and appli cable models 2 on the next page unl Selecting the Operation Mode 2 1 With the Priority Room Setting present but inactive or not present When more than one indoor unit is operating priority is given to the first unit that was turned on In this case set the units that are turned on later to the same operation mode 1 as the first unit Otherwise they will enter the Standby Mode and the operation lamp will flash this does not indicate malfunction 1 COOL DRY and mode may be used at the same time AUTO mode automatically selects COOL mode or HEAT mode based on the room temperature Therefore AUTO mode is available when selecting the same operation mode as that of the room with the first unit to be turned on CAUTION Normally the operation mode in the room where the unit is first run is given priority but the following situations are exceptions so please keep this in mind If the operation mode of the first room is FAN Mode then using Heating Mode in any room after this will give priority to heating In this situation the air conditioner running in FAN Mode will go on standby and the operation lamp will flash 2 With the Priority Room Setting active See Priority Room Setting on the next page NIGHT QUIET Mode
59. When the outdoor air temperature is lower than 18 C the fan tap must be set to L 2 When Heating Operation When the outdoor air temperature is higher than 4 C the fan tap must be turned to L only for heat pump model 3 9 Moisture Protection Function 2 Outline Detail In order to obtain the dependability of the compressor the compressor must be stopped according to the conditions of the temperature of the outdoor air and outdoor heat exchanger Heat Pump Model W Operation stop depending on the outdoor air temperature Compressor operation turns OFF under the conditions that the system is in cooling operation and outdoor air temperature is below 10 Cooling Only Model W Operation stops depending on the outdoor air temperature Compressor operation turns OFF under the condition that outdoor air temperature is below 10 C 48 Function and Control SiBE12 314 Control Specification 3 10 Defrost Control Outline Heat Pump Only Defrosting is carried out by the cooling cycle reverse cycle The defrosting time or outdoor heat exchanger temperature must be more than its fixed value when finishing Detail Conditions for Starting Defrost The starting conditions must be made with the outdoor air temperature and heat exchanger temperature Under the conditions that the system is in heating operation 6 minutes after the compressor is started and more than 30 minutes of accumulated fine pass since the start o
60. button page 9 System Configuration 63 Instruction in case of FTK X S 25 35 SiBE12 314 2 3 Preparation before Operation W Preparation Before Operation To set the batteries Position correctly 1 Press with finger and slide the front cover to take it off 2 Set two dry batteries AAA 3 Set the front cover as before ATTENTION About batteries When replacing the batteries use batteries of the same type and replace the two old batteries together When the system is not used for a long time take the batteries out We recommend replacing once a year although if the remote controller display begins to fade or if reception deteriorates please replace with new alkali batteries Using manganese batteries reduces the lifespan The attached batteries are provided for the initial use of the system The usable period of the batteries may be short depending on the manufactured date of the air conditioner 64 System Configuration SiBE12 314 Instruction in case of FTK X S 25 35 BVMB W Preparation Before Operation To operate the remote controller To use the remote controller aim the transmitter at the indoor unit If there is anything to block signals between the unit and the remote control ler such as a curtain the unit will not operate Do not drop the remote controller Do not get it wet The maximum distance for communication is about
61. by checking the temperatures sensed by Malfunction the indoor unit heat exchanger temperature thermistor and room temperature thermistor that Detection are located in a shut down room At another room the indoor unit is normal UA is displayed on the remote controller Malfunction In the cooling mode the following conditions A and B are kept together for 5 minutes Decision A Indoor unit heat exchanger temperature lt 1 C Conditions B Indoor unit heat exchanger temperature Room temperature 10 C Ifthe indoor unit anti icing function is activated four times continuity the system will be shut down The 4 time counter will reset itself if any of the following errors does not occur during the compressor running time total time OL radiation fin temperature rise insufficient gas and compressor lock Total 60 minutes Supposed W Wrong wiring or piping Causes W Ev malfunctioning in each room Short circuit m Indoor unit heat exchanger temperature thermistor abnormality Room temperature thermistor abnormality 98 Service Diagnosis SiBE12 314 Troubleshooting Troubleshooting Check No 4 Refer to P 126 Check No 6 Refer to P 128 N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check the wiring and piping YES Wiring or piping out of spec NO 99 Check No 4 Check the electronic expansion valve
62. comed by a comfortably air condi button again and the air conditioner will adjust capacity to reach the preset tioned room will adjust capacity to the set tem temperature for HOME LEAVE Operation perature for normal operation Before bed ym gt gt Tm v E Set the unit to HOME LEAVE Opera The unit will maintain the temper When you enter the living room in the morn tion before leaving the living room ature in the room at a comfortable ing the temperature will be just right when going to bed level while you sleep Disengaging HOME LEAVE Opera tion will return the temperature to that set for normal operation Even the coldest winters will pose no problem 2 Use as a favorite mode Once you record the temperature and air flow rate settings you most often use you can retrieve them by pressing HOME LEAVE button You do not have to go through troublesome remote control operations NOTE Once the temperature and air flow rate for HOME LEAVE operation are set those settings will be used whenever HOME LEAVE operation is used in the future To change these settings please refer to the Before using HOME LEAVE operation section above HOME LEAVE operation is only available in COOL and HEAT mode Cannot be used in AUTO DRY and FAN mode HOME LEAVE operation runs in accordance with the previous operation mode COOL or HEAT before using HOME LEAVE operation HOME LEAVE operation and POWERFUL operati
63. detected by checking the high voltage fan motor rpm being detected by the Hall IC The fan does not start in 30 seconds even when the fan motor is running W The system will be shut down if the error occurs 16 times W Clearing condition Continuous run for about 5 minutes normal m Fan motor breakdown W Harness or connector disconnected between fan motor and PCB or in poor contact Foreign matters stuck in the fan Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Fan motor connector disconnected Turn off the power and reconnect the connector YES Foreign matters in or gt Remove around the fan Y NO Get started Check No 15 Check the outdoor unit PCB rpm pulse input Pulse signal inputted Replace the outdoor unit fan motor YES Replace the outdoor unit PCB R2843 102 Service Diagnosis SiBE12 314 Troubleshooting 4 10 Input Over Current Detection Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes EG An input over current is detected by checking the input current value being detected by CT with the compressor running The following CT input with the compressor running continues for 2 5 seconds CT input Above 11 A The system will be shut down if the error occurs 16 times Clear
64. limits of the following functions Compressor protection input current discharge pipes freeze prevention dew prevention fin thermistor temperature 3 Determine lower limit frequency Set a maximum value as an lower limit frequency among the frequency lower limits of the following functions Pressure difference upkeep 4 Determine prohibited frequency There is a certain prohibited frequency such as a power supply frequency Indoor Frequency Command AD signal The difference between a room temperature and the temperature set by the remote controller will be taken 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 0 Th 2 0 4 4 0 8 6 0 C OFF 0 5 1 2 5 5 4 5 9 6 5 D 1 0 2 3 0 6 5 0 A 7 0 E 1 5 3 3 5 7 5 5 B 7 5 F Th OFF Thermostat OFF Indoor Unit Capacity S value The capacity of the indoor unit is a S value and is used for frequency command Capacity S value 2 5 kW 25 3 5 kW 35 Frequency Initial Setting Outline When starting the compressor or when conditions are varied due to the change of the operating room the frequency must be initialized according to the total of a maximum AD value of each room and a total value of Q of the operating room the room in which the thermostat is set to ON Q value Indoor uni
65. of the room air conditioner have been completed it should be operated and handled as described below Every user would like to know the correct method of operation of the room air conditioner to check if it is capable of cooling or heating well and to know a clever method of using it In order to meet this expectation of the users giving sufficient explanations taking enough time be said to reduce about 80 of the requests for servicing However good the installation work is and however good the functions are the customer may blame either the room air conditioner or its installation work because of improper handling The installation work and handing over of the unit can only be considered to have been completed when its handling has been explained to the user without using technical terms but giving full knowledge of the equipment 58 System Configuration SiBE12 314 Instruction in case of FTK X S 25 35 BVMB 2 Instruction in case of FTK X S 25 35 BVMB 2 1 Safety Precautions y Safety precautions Keep this manual where the operator can easily find them Read this manual attentively before starting up the unit For safety reason the operator must read the following cautions carefully This manual classifies precautions into WARNINGS and CAUTIONS Be sure to follow all precautions below they are all important for ensuring safety Z WARNING CAUTION If you do not follow these instructions exactly the unit may
66. piping error check described does not cool or does not the indoor and outdoor units on the product diagnosis nameplate heat only for heat pump connection wires and pipes model Check for thermistor detection Check to make sure that the main unit s errors thermistor has not dismounted from the pipe holder Check for faulty operation of the Set the units to cooling operation and compare electronic expansion valve the temperatures of the liquid side connection pipes of the connection section among rooms to check the opening and closing operation of the electronic expansion valves of the individual units Diagnosis with remote controller 92 indication Diagnosis by service port pressure Check for insufficient gas 121 and operating current Large Operating Noise and Check the output voltage of the 132 Vibrations power transistor Check the power transistor Check the installation condition Check to make sure that the required spaces for installation specified in the Technical Guide etc are provided 90 Service Diagnosis SiBE12 314 Service Check Function 3 Service Check Function In the series the temperature display sections on the main unit indicate corresponding codes 1 When the timer cancel button is held down for 5 seconds a 00 indication flashes on the temperature display section TIMER CANCEL button lt 1
67. that a gas pipe temperature in each room becomes equal 1 The indoor heat exchanger thermistor is used for controlling target discharge pipe temperature Set a target discharge pipe temperature according to the outdoor and indoor heat exchanger temperature Control the electronic expansion valve opening so that the target discharge pipe temperature can be obtained 2 The indoor heat exchanger thermistor is used to prevent freezing During the cooling operation if the temperature drops abnormally the operating frequency becomes lower then the operation must be halted 3 The indoor heat exchanger thermistor is used for anti icing control During the cooling operation if the heat exchanger temperature in the room where operation is halted becomes 1 C or if the room temperature heat exchanger in the room where operation is halted becomes gt 10 it is assumed as icing Function and Control 41 Control Specification SiBE12 314 3 Control Specification 3 4 Mode Hierarchy Outline There are two modes the mode selected in user s place normal air conditioning mode and forced operation mode for installation and providing service Detail 1 For heat pump model There are following modes stop cooling includes drying heating include defrosting Air conditioner control mode Forced operating mode Forced cooling for Pump Down Operation Normal operating mode
68. the capacitor Replace PCB 1 gt Replace the fan motor R1946 96 Service Diagnosis SiBE12 314 Troubleshooting 4 5 Thermistor or Related Abnormality Indoor Unit Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Check No 6 Refer to P 128 de dde The temperatures detected by the thermistors are used to determine thermistor errors When the thermistor input is more than 4 96 V or less than 0 04 V during compressor operation reference When above about 212 C less than 120 ohms or below about 50 C more than 1 860 kohms The values vary slightly in some models Faulty connector connection m Faulty thermistor m Faulty PCB N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check the connector connection N gt Correct the connection YES Check No 6 Thermistor resistance check Ne gt Replace the thermistor Replace the indoor unit PCB YES Replace the indoor unit PCB R1403 Heat exchanger temperature thermistor 3 Room temperature thermistor Service Diagnosis 97 Troubleshooting SiBE12 314 4 6 Anti icing Function Remote AS Controller Display Method of Indoor unit icing during cooling operation is detected
69. up tis recommended to replace the air purifying filter every three months Photocatalytic Deodorizing Filter gray Maintenance 1 Dry the photocatalytic deodorizing filter in the sun After removing the dust with a vacuum cleaner place the filter in the sun for approximately 6 hours By drying the photocatalytic deodorizing filter in the sun its deodorizing and antibacterial capabilities are regenerated Because the filter material is paper it can not be cleaned with water It is recommended dry the filter once every 6 months Replacement 1 Detach the filter element and attach a new one 25 82 System Configuration SiBE12 314 Instruction in case of FTK X S 25 35 BVMB Check Chec Chec Chec e f k that the base stand and other fittings of the outdoor unit are not decayed or corroded k that nothing blocks the air inlets and the outlets of the indoor unit and the outdoor unit k that the earth wire is not disconnected or broken Check that the drain comes smoothly out of the drain hose during COOL or DRY operation no drain water is seen water may be leaking from the indoor unit Stop operation and consult the ser vice shop if this is the case Before a long idle period 1 Operate the fan only for several hours on a fine day to dry out the inside e Press MODE button and select fan operation e Press ON OFF button and start operation
70. using the provided standard installation frame Incorrect use of the installation frame and improper installation can cause the equipment to fall resulting in injury For integral units only Be sure to install the product securely in the installation frame mounted on a window frame If the unit is not securely mounted it can fall and cause injury For integral units only vi SiBE12 314 Introduction AN Warning Be sure to use an exclusive power circuit for the equipment and follow the 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 can cause an electrical shock or fire Be sure to use the specified cable to connect 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 can cause excessive heat generation or fire When connecting the cable 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 can cause an electrical shock excessive heat generation or fire Do not damage or modify the power cable Damaged or modified power cable can caus
71. valve may catch anywhere of WAbnormal discharge pipe temperature the body 126 Service Diagnosis SiBE12 314 Check 5 1 2 Four Way Valve Performance Check Check No 5 Turn off the power and turn it on again Y Four way valve coil Start the heating mode run Cooling dry No continuity Heating Continuity S80 voltage NO at DC 180 220 V with Replace the outdoor unit compressor on PCB Fig 1 YES Disconnect the four way valve coil from the connector and check the continuity Four way valve NO coil resistance at gt Replace the four way valve 3kQ 0 5kQ coil YES Replace the four way valve Fig 1 Voltage at S80 DC180 220V Compressor _ ON Time R3047 Service Diagnosis 127 SiBE12 314 5 1 3 Thermistor Resistance Check Check No 6 Remove the connectors of the thermistors on the PCB and measure the resistance of each thermistor using tester The relationship between normal temperature and resistance is shown in the graph and the table below Thermistor 25 20 B 3950 Temperature 20 211 0 kQ 15 150 10 116 5 5 88 0 67 2 5 51 9 10 40 15 31 8 20 25 25 20 30 16 35 13 40 10 6 45 8 7 50 7 2 Eg Resistance range R25 20kQ kQ iu 50 T 15 0 15 30 45 R1437 128 Service Dia
72. 00 4 8 Compressor LOCK en eenen 101 4 9 DO Fan LOCK MER 102 4 10 Input Over Current Detection 2 44 103 4 11 Four Way Valve Abnormality eese 105 4 12 Discharge Pipe Temperature Control 107 4 13 High Pressure Control in 108 4 14 Position Sensor Abnormality eese 110 4 15 CT or Related 111 4 16 Thermistor or Related Abnormality Outdoor Unit 113 4 17 Electrical Box Temperature 115 4 18 Radiation Fin Temperature 117 4 19 Output Over Current 4 119 4 20 Irisufficient Gassen pue tec NR TH tu seio aeta 121 4 21 Over voltage 123 Table of Contents SiBE12 314 4 22 Anti icing Function in Other Rooms Unspecified Voltage between Indoor and Outdoor 124 4 23 Outdoor Unit PCB Abnormality or Signal Transmission Circuit Abnormality ii e ette reca tta 125 REI P ETE ETT 126 HOW 16 Check iei oo 126 Part 7 Removal
73. 1 Liquid pipe temperature control with all ports connected and all rooms being air conditioned 2 Dew prevention function for indoor rotor 50 Function and Control SiBE12 314 Control Specification Detail The followings are the examples of control which function in each mode by the electronic expansion valve control Operation pattern When power is turned ON O function x not function Control for abnormally high discharge Control when frequency changed pipe temperature Dew buildup prevention control for Indoor freeze prevention control indoor rotor Gas pipe isothermal control only for heat pump model Liquid pipe temperature control Oil recovery control SC control Fully closed when power is turned ON Y Cooling 1 room operation Open control when starting Control of target discharge pipe temperature Y Cooling 2 rooms operation Control when the operating room is changed Control of target discharge pipe temperature Y Stop Pressure equalizing control Y Heating 1 room operation Open control when starting only for heat pump model Control of target discharge pipe temperature Y Heating 2 rooms operation Control when the operating room is changed only for heat pump model Control of target discharge p
74. 11 5 High Temperature of the Discharge Pipe When the compressor is operating if the discharge pipe temperature exceeds a certain value open the electronic expansion valve and remove the refrigerant to the low pressure side and lower discharge temperature 3 11 6 Oil Recovery Function Outline The electronic expansion valve opening in the cooling stopped room must be set as to open for a certain time at a specified interval so that the oil in the cooling stopped room may not be accumulated Detail During cooling operation every 1 hour continuous operation the electronic expansion valves in the operation stopped room must be opened by 80 pulses for specified time 3 11 7 Gas Pipe Isothermal Control During Cooling When the units are operating in multiple rooms detect the gas piping temperature and correct the electronic expansion valve opening so that the temperature of the gas pipe in each room becomes identical When the gas pipe temperature gt the average gas pipe temperature open the electronic expansion valve in that room When the gas pipe temperature lt the average gas pipe temperature close the electronic expansion valve in that room 3 11 8 Disconnection of the Discharge Pipe Thermistor Outline Detect a disconnected discharge pipe thermistor by comparing the discharge pipe temperature with the condensation temperature If any is disconnected open the electronic expansion valve according to the outdoor a
75. 40 Function and Control SiBE12 314 Function of Main Structural Parts 2 2 2 Cooling Only Model A Outdoor Heat Exchanger Thermistor DCB B Discharge Pipe Thermistor DOT C Gas Pipe Thermistor DGN D Indoor Heat Exchanger Thermistor DCN Expansion valve Compressor 2973 1 The outdoor heat exchanger thermistor is used for controlling target discharge temperature Set a target discharge temperature depending on the outdoor and indoor heat exchanger temperature Control the electronic expansion valve opening so that the target discharge temperature can be obtained 2 When cooling an outdoor heat exchanger thermistor is used for detecting the discharge thermistor disconnected When the temperature of the discharge piping is lower than the temperature of outdoor heat exchanger a disconnected discharge thermistor can be detected 3 The outdoor heat exchanger thermistor is used for high pressure protection during cooling operation 1 The discharge pipe thermistor is used to control the discharge pipe If the temperature of discharge pipe used in place of the inner temperature of the compressor rises abnormally the operating frequency drops or the operation must be halted 2 The discharge pipe thermistor is used for detecting the discharge thermistor disconnected When cooling a gas pipe thermistor is used for gas pipe isothermal control Control electronic expansion valve opening so
76. 526 836 a aa g KAT16600 MANUFACTURER S CONTROL No gt Oz BLK 9 Lan 3 47 al 18 B Jii KA515604 Y 5 N 2 gt ru 65 A 515601 KA515603 2P084356E Display PCB PCB 3 Detail NOTE10 Part m DISPLAY AYRE 2P 084377 MANUFACTURER S CONTROL No 2P084377B Signal Receiver PCB PCB 4 Detail MANUFACTURER S CONTROL No 2P084377B 22 Printed Circuit Board Connector Wiring Diagram SiBE12 314 Printed Circuit Board Connector Wiring Diagram 1 4 Outdoor Unit Name of Connector 1 510 545 AC1 AC2 Connector for terminal strip 2 S11 HL1 HN1 3 S12 HL2 HN2 4 S20 S21 O1 S30 7 S70 8 S80 9 S90 n Note Other Designations 1 LED A Connector for control PCB Connector for filter PCB Connector for electronic expansion valve coil A port Connector for electronic expansion valve coil B port Connector for compressor Connector for fan motor Connector for four way valve coil Connector for thermistor outdoor air heat exchanger and discharge pipe Connector for thermistor gas pipe and liquid pipe Connector for fin thermistor Connector for capacitor Connector for reactor Service Monitor LED Green Fuse 3 15A 250V Fuse 20A 250V Diode bridge Jumper for maximum power input limitation Refer to installa
77. 9 30 Function and Control SiBE12 314 Main Functions 1 5 Automatic Operation Automatic Cooling Heating Function Heat Pump Only When the AUTO mode is selected with the remote controller the microcomputer automatically determines the operation mode from cooling and heating according to the room temperature and setting temperature at the time of the operation startup and automatically operates in that mode The unit automatically switches the operation mode to cooling or heating to maintain the room temperature at the main unit setting temperature Detailed 1 Remote controller setting temperature is set as automatic cooling heating setting Explanation of temperature 18 to 30 C the Function 2 Main unit setting temperature equals remote controller setting temperature plus correction value correction value cooling O deg heating 2 deg 3 Operation ON OFF point and mode switching point are as follows CD Heating Cooling switching point Room temperature gt Main unit setting temperature 2 5 deg 2 Cooling Heating switching point Room temperature Main unit setting temperature 2 5 deg 3 Thermostat ON OFF point is the same as the ON OFF point of cooling or heating operation 4 During initial operation Room temperature 2 Remote controller setting temperature Cooling operation Room temperature Remote controller setting temperature Heating operation Heating cool
78. 9 3 8 134 4 6 162 Type Cross Flow Fan Cross Flow Fan Fan Motor Output Ww 18 18 Speed Steps 5 Steps Silent and Auto 5 Steps Silent and Auto Air Direction Control Right Left Horizontal and Downward Right Left Horizontal and Downward Air Filter Removal Washable Mildew Proof Removal Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0 18 Power Consumption Rated Ww 40 40 40 40 Power Factor 96 6 96 6 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Dimensions HxWxD mm 273 784 195 273 784 195 Packaged Dimension mm 834x325x258 834x325x258 Weight kg 8 8 Gross Weight kg 11 11 ea H WL SL dBA 38 32 25 22 38 33 28 25 39 33 26 23 39 34 29 26 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Liquid mm 9 6 4 9 6 4 Piping Connection Gas mm 9 9 5 9 5 mm 18 0 18 0 Drawing No 3D040170A 3D040171A Model ATXS25BVMB ATXS35BVMB Cooling Heating Cooling Heating Rated Capacity 2 5kW Class 3 5kW Class Front Panel Color White White H 7 8 275 7 8 275 8 0 282 7 8 275 m min M 6 0 212 6 5 229 6 2 219 6 6 233 Alr Fow Rates L 42 148 5 3 187 4 5 159 5 4 191 SL 3 5 124 4 6 162 3 8 134 4 7 166 Type Cross Flow Fan Cross Flow Fan Fan Motor Output Ww 18 18 Speed Steps 5 Steps Silent and Auto 5 Steps Silent and Auto Air Direction Control Right Left Horizontal and Downward Right Left Horizontal and Downward Air Filter Removal Washable Mildew Proof Re
79. 9x354 Weight kg 23 23 Gross Weight kg 32 32 eae H M L SL dBA 39 37 36 33 39 37 36 33 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Liquid mm 064 6 4 Piping Connection Gas mm 9 5 9 5 mm 27 2 27 2 Drawing No 3D038028 3D038029 Floor Ceiling Suspended Dual Type 230V 50Hz Model FLKS25BVMB FLKS35BVMB Rated Capacity 2 5kW Class 3 5kW Class Front Panel Color Almond White Almond White H 7 6 268 8 6 304 m e min M 6 8 240 7 6 268 Anew Rates cfm L 6 0 212 6 6 233 SL 5 2 184 5 6 198 Type Sirocco Fan Sirocco Fan Fan Motor Output Ww 34 34 Speed Steps 5 Steps Silent and Auto 5 Steps Silent and Auto Air Direction Control Right Left Horizontal and Downward Right Left Horizontal and Downward Air Filter Removal Washable Mildew Proof Removal Washable Mildew Proof Running Current Rated A 0 34 0 36 Power Consumption Rated 74 78 94 6 94 2 Temperature Control Microcomputer Control Microcomputer Control Dimensions HxWxD mm 490 1 050 200 490 1 050 200 Packaged Dimension mm 1 100x566x280 1 100x566x280 Weight kg 16 16 Gross Weight kg 22 22 Den H WL SL dBA 37 34 31 28 38 35 32 29 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Liquid mm 064 9 6 4 Piping Connection Gas mm 9 5 9 5 Drain mm 18 0 18 0 Drawing No 3D040166A 3D040167A Conversion Formulae kcal h kWx860 Btu h KWx3414 cfm2me minx35 3
80. Clean the air filters and set them again Take out batteries from the remote controller Turn OFF the breaker for the room air conditioner When a multi outdoor unit is connected make sure the heating operation is not used at the other room before you use the fan operation page 22 NOTE Operation with dirty filters 1 cannot deodorize the air 2 cannot clean the air 3 results in poor heating or cooling 4 may cause odour The air purifying filter and photocatalytic deodorizing filter cannot be reused even if washed In principle there is no need to replace the photocatalytic deodorizing filter Remove the dust periodi cally with a vacuum cleaner However it is recommended to replace the filter in the following cases 1 The paper material is torn or broken during cleaning 2 The filter has become extremely dirty after long use To order air purifying filter or photocatalytic deodorizing filter contact to the service shop where you bought the air conditioner Dispose of old air filters as non burnable waste and photocatalytic deodorizing filters as burnable waste Part name Part No Photocatalytic deodorizing filter and air purifying filter KAZ926B41 with frame Photocatalytic deodorizing filter without frame KAZ926A42 Air purifying filter without frame KAF926B42 26 System Configuration 83 Instruction case of FTK X S 25 35 SiBE12 314 2 13 Troubleshooting y Trouble S
81. Controls at Mode Changing Start up 3 3 1 Preheating Operation Outline Operate the inverter in the open phase operation with the conditions including the preheating command from the indoor the outdoor air temperature and discharge pipe temperature Detail Preheating ON Condition m When outdoor air temperature is below 10 5 C and discharge pipe temperature is below 10 5 C inverter in open phase operation starts OFF Condition m When outdoor air temperature is higher than 12 or discharge pipe temperature is higher than 12 inverter in open phase operation stops 3 3 2 Four Way Valve Switching Outline of Heat Pump Only Heating During the heating operation current must be conducted and during cooling and defrosting Operation current must not be conducted In order to eliminate the switching sound as the four way valve switches from ON to OFF when the heating is stopped the delay switch of the four way valve must be carried out after the operation stopped Detail The OFF delay of four way valve Energize the coil for 150 sec after unit operation is stopped 3 3 3 Four Way Valve Operation Compensation Outline Heat Pump Only At the beginning of the operation as the four way valve is switched acquire the differential pressure required for activating the four way valve by having output the operating frequency which is more than a certain fixed frequency for a certain fixed time Detail Staring Conditions
82. F Thermistor saneren eat al deduci scia qe d condos tun 39 S Control Specifi CBE ODE eoe doe ee oer veto prr 42 3 1 Mode Hierarchy esmee neerde bro rape bed eei 42 32 Frequency Control eg e e a o rete iie Fons e e eae 43 3 3 Controls at Mode Changing 45 3 4 Discharge Pipe Control ec Aen ae Gedenk a ad 46 3 5 INPUT Current eten einen eee be das em 46 3 6 Freeze up Protection 2 2 44400 47 3 7 Heating Peak cut Control e t o nternet 47 3 8 48 3 9 Moisture Protection Function 2 48 3 10 Defrost COMMON oo oot pd sete ip t 49 3 11 Electronic Expansion Valve 50 3 12 ite m 54 3 13 Preventing Indoor 2 4 2 55 3 14 Forced Operation 4 8 55 3 I5 Additionial FUNCTION needed uto 55 Function and Control 25 Main Functions SiBE12 314 1 Main Functions Note gt the list of functions for the functions applicable to different models 1 1 Main Control Parameters Additional Control Parameters Inverter Principle Frequency Principle The compressor is frequency controlled during normal operation The target fr
83. Filter Compressor Oval Scroll Compressor Ultra Longlife Filter Option Swing Compressor 1 Mould Proof Air Filter Rotary Compressor il Wipe clean Flat Panel Reluctance DC Motor 1 Washable Grille Comfortable Power Airflow Flap Filter Cleaning Indicator Airflow Power Airflow Dual Flaps Good Sleep Cooling Operation Power Airflow Diffuser Timer 24 Hour On Off Timer Wide Angle Louvers Vertical Auto Swing Up and Down Free Auto Restart after Power Failure Horizontal Auto Swing Ex amp Self Diagnosis Digital LED Display Right and Left y Ox 3 D Airflow 3 Step Airflow H P Only S Wiring Error Check Comfort Auto Fan Speed Anticorrosion Treatment of Outdoor __ Control Heat Exchanger Indoor Unit Silent Operation ol Flexibility Multi Split Split Type Compatible ol Indoor Unit Night Quiet Mode Automatic Flexible Voltage Correspondence Outdoor Unit Silent Operation lo High Ceiling Application es Manual Intelligent Eye Chargeless __ 20 Quick Warming Function Power Selection Hot Start Function o Remote 5 Rooms Centralized Controller Control Option Automatic Defrosting Remote Control Adaptor 0 Normal Open Pulse Contact Option Operation Automatic Operation ol
84. High Pressure Control in Cooling 108 Target Discharge Pipe Temperature Control 53 Home Leave Operation 35 Thermistor or Related Abnormality Indoor 97 Thermistor or Related Abnormality Indoor Unit PCB Abnormality 93 Outdoor Unit tenente 113 Input Current Control ce a rt e 46 Thermistor Resistance Check 128 Input Over Current Detection 103 Troubleshooting with the LED Indication 89 Installation Condition Check 129 Drawings amp Flow Charts V SiBE12 314 Turning Speed Pulse Input on the Outdoor Unit PGB Gh6eck e niis 133 W Wiring Diagrams eee 167 Indoor Units 167 Outdoor Units 169 vi Drawings amp Flow Charts DAIKIN INDUSTRIES LT D DAIKIN EUROPE NV Head office Zandvoordestraat 300 B 8400 Oostende Belgium Umeda Center Bldg 4 12 Nakazaki Nishi 2 chome Kita ku Osaka 530 8323 Japan Tokyo office Shinjuku Sumitomo Bldg 6 1 Nishi Shinjuku 2 chome Shinjuku ku Tokyo 163 0235 Japan For further improvement specifications or designs are subject to change without prior notice Printed in Japan 07 2003 AK COS
85. I Cooling I Heating Defrosting L_ Stop mode except for cooling heating modes by indoor command Preheat operation I During C capacitor is discharging Stop R2829 2 For cooling only model There are following models stop and cooling including drying Air conditioner control mode Forced operating mode Forced cooling for Pump Down Operation Normal operating mode I Cooling Stop mode except for cooling modes by indoor command Preheat operation During C capacitor is discharging Stop R2830 Unless specified otherwise an indoor dry operation command must be regarded as cooling operation Determine Operating Mode Judge the operating mode command set by each room in accordance with the instructing procedure and determine the operating mode of the system The following procedure will be taken as the modes conflict with each other W The system will follow the mode determined first First push first set Forthe rooms set with different mode select stand by mode Operation lamp flashes Note Command of the Command of the Operation of the Operation of the first set room second set room first set room second set room Cooling Heating Cooling Stand by Cooling Fan Cooling Fan Heating Cooling Cooling Stand by Heating Fan Fan Stand by Fan Cooling Cooling Cooling Fan Heati
86. QUAM 20 21 21 ur 18 T Test Run from the Remote Controller 160 rti eee adorent ei tts 39 152 Thermistor or Related Abnormality Indoor Unit 97 Thermistor or Related Abnormality Outdoor Unit 2 113 Thermistor Resistance Check 128 TIMER Operation 77 TOP PANE Re EB anti 137 Troubleshooting 84 Troubleshooting with the LED Indication 89 Turning Speed Pulse Input on the Outdoor Unit PEB Check tei denied 133 U Bor 121 D 123 125 RR 124 Bl 98 124 Unspecified Voltage between Indoor and Outdoor Units 124 v VR TREE RUN 18 20 21 Voltage Detection Function 55 Wide Angle Louvres 28 Wiring Diagrams eei a 167 SiBE12 314 Index SiBE12 314 Drawings amp Flow Charts A Insufficient Gas s tea ere 121 Anti icing Function 98 Insufficient Gas Control 54 Anti icing Function in Other Rooms Intelligent Eye fie nich belie Le sin te das des 33 Unspecified Voltage Intelligent Eye Sensor 18 between Indoor and Outdoor Units 124 Inverter Features 27 Auto SWING Seema in
87. VERLOAD PROTECTOR REVERSING SOLENOIDE VALVE COIL BLU BLUE L1R REACTOR 1 8 THERMISTOR 216 FERRITE CORE BRN BROWN M1C COMPRESSOR MOTOR SA1 SURGE ARRESTER PROTECTIVE EARTH GRY GREY M1F FAN MOTOR TFU THERMAL FUSE 510 512 520 521 530 ORG ORANGE MRCW MRM10 TRM1 TRANSISTOR MODULE 840 945 570 580 590 592 RED RED MRM20 MAGNETIC RELAY V1 V2 V3 VARISTOR HL1 HL2 HN1 HN2 HR3 HR4 WHT WHITE N NEUTRAL X1M X2M TERMINAL STRIP 1 2 CONNECTOR YLW YELLOW d Appendix 169 Wiring Diagrams SiBE12 314 170 Appendix SiBE12 314 Index Numerics Electronic Expansion Valve Control 50 3 Minutes Stand by nnen eneen sneren eneen 45 Error Codes and Description 92 A F c C CERE 93 107 AD neten el 94 98 ge ERES 108 sce ser cae tera 96 Fan Control 48 23 Fan Motor 136 lp TC EC OE 23 Fan Motor AC Motor or Related Abnormality 96 Air Flow Direction eis 69 Fan Speed Control for Indoor Units 29 Air Purifying Filter nennen 37 Filter sicat d 23 Anti icing Function Ac eiae t 98 Forced Operation 55 Anti icing Function in Other Rooms
88. air conditioner Do not attempt to repair or modify the air conditioner by yourself Incorrect work may result in electric shocks or fire Consult the service shop where you bought the air conditioner If one of the following symptoms takes place call the service shop immediately The power cord is abnormally hot or damaged Anabnormal sound is heard during operation The safety breaker a fuse or the earth leakage breaker Turn the breaker cuts off the operation frequently gt OFF and call the W A switch or a button often fails to work properly service shop There is a burning smell Water leaks from the indoor unit W After a power failure Lightning The air conditioner automatically resumes If lightning may strike the neighbouring area operation in about 3 minutes You should just stop operation and turn the breaker OFF for wait for a while system protection Disposal requirements Dismantling of the unit treatment of the refrigerant oil and eventual other parts should be done in accordance with the relevant local and national regulations We recommend periodical maintenance In certain operating conditions the inside of the air conditioner may get foul after several seasons of use resulting in poor performance It is recommended to have periodical maintenance by a specialist aside from regular cleaning by the user For specialist maintenance contact the service shop w
89. an up the radiation fin R3044 116 Service Diagnosis SiBE12 314 Troubleshooting 4 18 Radiation Fin Temperature Rise Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes 19 A radiation fin temperature rise is detected by checking the radiation fin thermistor with the compressor on If the radiation fin temperature with the compressor on is above 90 C m radiation fin temperature rise takes place 4 times successively the system will be shut down W The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time Fin temperature rise due to defective outdoor unit fan Fin temperature rise due to short circuit Fin thermistor defective Connector in poor contact Outdoor unit PCB defective Service Diagnosis 117 Troubleshooting SiBE12 314 Troubleshooting Check No 6 Refer to P 128 Check No 7 Refer to P 129 Check No 9 Refer to P 130 Caution Turn off the power and turn it on again to get the system started Error displayed again NO Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred YES Check No 6 Check the thermistor resistance value Fin thermistor Y Check the radiation fin temperature
90. at exchanged air small exchanged air small low speed freq 50Hz itv 60Hz freq variable Refrigerant circulation rate low R2812 26 Function and Control SiBE12 314 Main Functions Inverter Features The inverter provides the following features The regulating capacity can be changed according to the changes in the outdoor air temperature and cooling heating load Quick heating and quick cooling The compressor rotational speed is increased when starting the heating or cooling This enables a quick set temperature Air discharge temperature inverter gt 45 2 2 2 2 lt 27 d normal heat pump T T T 60 120 300 seconds R1187 Start Even during extreme cold weather the high capacity is achieved It is maintained even when the outdoor air temperature is 2 C Comfortable air conditioning A detailed adjustment is integrated to ensure a fixed room temperature It is possible to air condition with a small room temperature variation Energy saving heating and cooling Once the set temperature is reached the energy saving operation enables to maintain the room temperature at low power Frequency Limits The following table shows the functions that define the minimum and maximum frequency Frequency limits Limited during the activation of following functions Low Four way valve operation compensation Refe
91. ategory Functions m Category Functions m t 9 2 2 gt LN Basic Inverter olo Health amp Air Purifying Filter with Bacteriostatic ol Function with Inverter Power Control Clean amp Virustatic Functions Operation Limit for Cooling C 10 Photocatalytic Deodorizing Filter zalle 46 Operation Limit for Heating Sa Air Purifying Filter with E E Photocatalytic Deodorizing Function PAM Control Longlife Filter Compressor Oval Scroll Compressor Ultra Longlife Filter Option Swing Compressor Mould Proof Air Filter Rotary Compressor S Wipe clean Flat Panel Reluctance DC Motor Washable Grille Comfortable Power Airflow Flap Filter Cleaning Indicator Airflow Power Airflow Dual Flap Good Sleep Cooling Operation Power Airflow Diffuser Timer 24 Hour On Off Timer Wide Angle Louvers Night Set Mode Vertical Auto Swing Up and Down Free after Power Failure Horizontal Auto Swing zT I OE amp Self Diagnosis Digital LED Display Right and Left y Ox 3 D Airflow 3 Step Airflow H P Only Wiring Error Check Comfort Auto Fan Speed Anticorrosion Treatment of Outdoor _ Control Heat Exchanger Indoor Unit Silent Operation ol Flexibility Multi Split Split Type Compatible ol Indoor U
92. ation lamp green HOME LEAVE lamp red R1734 In case of In case of FLK X S 25 35 B Series CDK X S 25 35 B Series OPERATION lamp green OPERATION lamp green INVERTER Go mz Q0341 Q0340 88 Service Diagnosis SiBE12 314 Caution for Diagnosis N Caution Operation stops suddenly Operation lamp blinks Troubleshooting with the LED Indication Cause of above trouble could be Operation mode butting Check followings Are the operation modes all the same for indoor units connected to Multi system outdoor unit If not set all indoor units to the same operation mode and confirm that the operation lamp is not blinking Moreover when the operation mode is in Auto set all indoor unit operation mode to Cool or Heat and check again if the operation lamp is normal If the lamp stops blinking after the above steps there is no malfunction Operation stops and operation lamp blinks only for indoor unit which the different operation mode is set later The first set operation mode has priority Outdoor Unit Slit for PY visual check Green R2944 There is a green LED on the PCB The flashing green LED indicates normal equipment condition Troubleshooting with the green LED The LED A of the outdoor unit indicate microcomputer operation co
93. ctive Internal wiring broken or in poor contact Reactor defective Outdoor unit PCB defective Service Diagnosis 111 Troubleshooting SiBE12 314 Troubleshooting Check No 12 Turn off the power and turn it on Refer to P 131 again Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Y Get the system started Y Running current YES as shown at right with relay Replace the outdoor unit cable 1 or 2 Current Capacitor charged when PCB guideline the indoor unit or outdoor unit main relay turns on NO Check No 12 Check the capacitor voltage Rising with increasing frequency YE 02 Turn off the power Disconnect the harnesses U V and W DC290 380V Y Check with the inverter checker DNE Measure the rectifier input voltage Y YES Correct the power supply or replace the SPM Replace the outdoor unit NO PCB Turn off the power and reconnect the above harnesses Then turn on the power again and get the system restarted YES Replace the outdoor unit PCB Compressor running Y Replace the compressor Voltage within YE the allowable range Supply S Replace the outdoor unit voltage 15 PCB NO Check the supply voltage R3042 Note If the model does
94. dade 28 Inverter Powerful Operation 36 Automatic Air Flow Control for Cooling 29 Inverter Units Refrigerant System Check 131 Automatic Air Flow Control for Heating 29 Automatic Operation 31 L Location of Operation Lamp 88 Capacitor Voltage Check 131 M Compressor LOER qaasi to tossed 101 Main Circuit Electrolytic Capacitor Check 132 Compressor Protection Function 45 Main Structural Parts Control PCB 18 20 21 24 Cooling Only Model 38 CT or Related Abnormality 111 Heat Pump Model 38 Mode Hierarchy 42 D DC Fan LOCK tient tede ee 102 N Defrost Control 49 Night Set Mode iudei teu 32 Discharge Pipe Control 46 Discharge Pipe Temperature Control 107 Discharge Pressure Check 130 OL Activation Compressor Overload 100 Display ies 18 20 22 ON OFF Button on Indoor Unit 37 Outdoor Unit Fan System Check E With DC Motor nennen 130 Electrical Box Temperature Rise 115 Outdoor Unit PCB Abnormality o
95. di Service Inverter Multi for 2 Rooms B Series Applied Models Multi Cooling Only einverter Multi Heat Pump SiBE12 314 Inverter Multi for 2 Rooms B Series eCooling Only Outdoor Unit Indoor Unit 2MKS40BVMB FTKS25BVMB FTKS35BVMB FLKS25BVMB FLKS35BVMB CDKS25BVMB CDKS35BVMB 2AMKSAOBVMB ATKS25BVMB ATKS35BVMB eHeat Pump Outdoor Unit Indoor Unit 2MXS40BVMB FTXS25BVMB FTXS35BVMB FLXS25BVMB FLXS35BVMB CDXS25BVMB CDXS35BVMB 2 540 525 ATXS35BVMB Table of Contents SiBE12 314 Part 1 Part 2 Part 3 Part 4 Ae EROR V Let Dae CAUTIONS CRT V List of Functions 222 2222222222222222222222222222222222222222222 1 Te ONW er 2 2 Heal Oso ay qoo trad tera 5 Specifications innn COOMUMG suc eneen Ei cabana OR PELO Sepe uer 10 1 1 Indoor 0 0 0 00 10 1 2 Outdoor Units ene 12 2 Heal PHIT O EE 13 2 1 Indoor 0000 13 2 2 Outdoor ice Rete 15 Printed Circuit Board Connector Wiring 17 1 Printed Circuit Board Connector Wiring
96. e SA1 ass tube fuse Removal Procedure 145 Outdoor Unit SiBE12 314 1 3 Removal of the Electrical Box Procedure Warning sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step m Remove the top panel and the front panel 1 Remove the electrical box 1 Disconnect the connection wirings for each room Procedure Points 2 Release the outdoor air temperature thermistor from the holder 3 Loosen the four screws and remove the electrical box cover for the fan motor lead wire refer to the removal procedure of PCB R2907 146 Removal Procedure SiBE12 314 Outdoor Unit Step Procedure Points 4 Disconnect all the for the connectors refer connectors to the removal procedure of EZ PCB 2908 5 Disconnect the discharge pipe thermistor True up the tips of the thermistor and the clip m Mind that not to lose the clip for the discharge pipe thermistor A _ A 2910 6 Loosen the screw of the electrical box
97. e air filters clean OPERATION lamp flashes s there anything to block the air inlet or the outlet of the indoor and the outdoor units Clean the air filters or take all obstacles away and turn the breaker OFF Then turn it ON again and try operating the air conditioner with the remote controller If the lamp still flashes call the service shop where you bought the air conditioner Are operation modes all the same for indoor units connected to outdoor units in the multi system If not set all indoor units to the same operation mode and confirm that the lamps flash Moreover when the operation mode is in AUTO set all indoor unit operation modes to COOL or HEAT for a moment and check again that the lamps are normal If the lamps stop flashing after the above steps there is no malfunction page 22 An abnormal functioning The air conditioner may malfunction with lightening or radio happens during operation waves Turn the breaker OFF turn it ON again and try operating the air conditioner with the remote controller 28 System Configuration 85 Instruction in case of 5 25 35 SiBE12 314 Call the service shop immediately AN WARNING When an abnormality such as a burning smell occurs stop operation and turn the breaker OFF Continued operation in an abnormal condition may result in troubles electric shocks or fire Consult the service shop where you bought the
98. e an electrical shock or fire Placing heavy items on the power cable and heating or pulling the power cable can damage the cable Do not mix air or gas other than the specified refrigerant R410A in the refrigerant system If air enters the refrigerating system an excessively high pressure results causing equipment damage and injury If the refrigerant gas leaks be sure to locate the leak and repair it before charging the refrigerant After charging refrigerant make sure that there is no refrigerant leak If the leak 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 can generate toxic gases when it contacts flames such as fan and other heaters Stoves and ranges When replacing the coin battery in the remote controller be sure to disposed of the old battery to prevent children from swallowing it If a child swallows the coin battery see a doctor immediately A Caution Installation of a leakage breaker is necessary in some cases depending on the conditions of the installation site to prevent electrical shocks Do not install the equipment in a place where there is a possibility of combustible gas leaks If a combustible gas leaks and remains around the unit it can cause a fire Be sure to install the packing and seal on the ins
99. e content of the data is abnormal If the indoor unit cannot communicate with the outdoor unit for 15 seconds the system will be shut down Faulty outdoor unit PCB Faulty indoor unit PCB Indoor unit outdoor unit signal transmission error due to wiring error Indoor unit outdoor unit signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units the transmission wire N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check the indoor unit outdoor unit connection wires ne YES Is there any wiring error gt Correct the indoor unit outdoor unit connection wires NO Fully insulated Not enough ex between wirings earth Y Fine The connection wiring YES Replace the connection wirings length over 30m Check the outdoor unit s LED A Is LED A flashing No Carry out the wiring work within the regulation less than 30m YES Disconnect the No 3 terminal Check the voltage of the indoor unit outdoor unit connection wires between No 2 and No 3 Touch the No 2 termintal with in DC range Is the voltage 30 50V NO gt Replace the outdoor unit Replace the indoor unit PCB Replace the outdoor unit R3046 Service Diagnosis 125 SiBE12
100. e following Output voltage of about 5 V between pins 1 and 3 Generation of 3 pulses between pins 2 and 3 when the fan motor is operating Failure of 1 faulty PCB Replace the PCB Failure of 2 gt faulty hall IC gt Replace the fan motor Both 1 and 2 result 2 Replace the PCB 1 Gray power supply 2 Purple signals 3 Blue grounding R1968 Service Diagnosis 133 SiBE12 314 134 Service Diagnosis SiBE04 314 Part 7 Removal Procedure aee tse 136 1 1 Removal of the Panels Fan 136 1 2 Removal ofthe PC Bites iunt te cere eee eee 141 1 3 Removal of the Electrical 146 1 4 Removal of the Sound 149 1 5 Removal of the Thermistor 41 0 0 0 152 1 6 Removal of the Four Way 153 1 7 Removal of the Electronic Expansion 155 1 8 Removal of the 156 Removal Procedure 135 Outdoor Unit SiBE12 314 1 Outdoor Unit 1 1 Removal of the Panels Fan Motor Procedure N Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Features Handle
101. ed Circuit Board Connector Wiring Diagram SiBE12 314 Printed Circuit Board Connector Wiring Diagram 1 3 Floor Ceiling Suspended Dual Name of Connector 1 S6 Connector for swing motor Horizontal Swing 2 S7 Connector for fan motor 3 S8 Connector for swing motor Vertical Swing 4 S21 Connector for centralized control 5 S24 Connector for display PCB 6 S25 S27 S36 Connector for control PCB 7 S26 Connector for signal receiver PCB 8 S81 Connector for room temp thermistor 9 S32 Connector for heat exchanger thermistor 10 S37 Connector for power supply PCB n Note Other designations 1 V1 Varistor 2 JA ADDRESS SETTING JAMPER JB Fan speed setting when compressor is OFF on thermostat JC Power failure recovery function 3 SW1 Operation Switch 4 SW2 Select Switch Ceiling or Floor 5 LED1 LED for operation Green 6 LED2 LED for timer Yellow 7 LEDS LED for Home Leave Operation Red Control PCB PCB1 Detail MANUFACTURERS CONTROL No NOTE1 swe t 6 m S6 12V Check Ko 3EB70052 1 K999605 K999606 3EB70045 16 K999607 E NOTE13 Part JA 2P084352C 5V Check S37 Printed Circuit Board Connector Wiring Diagram 21 Printed Circuit Board Connector Wiring Diagram SiBE12 314 Power Supply PCB PCB 2 Detail MANUFACTURER S CONTROL No S201 cara 1 2 jo e i 74 0 815 teste B
102. ed with the temperature being detected by the discharge pipe thermistor stop takes place 6 times successively due to abnormal discharge pipe temperature the system will be shut down If the temperature being detected by the discharge pipe thermistor rises above 110 C the compressor will stop The error is cleared when the temperature has dropped below 97 C Stop temperatures 1 110 C above 45Hz rising above 40Hz dropping 2 102 C 30 45Hz rising 25 40Hz dropping 3 98 C below 2 rising below 25Hz dropping W The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time m Refrigerant shortage Four way valve malfunctioning Discharge pipe thermistor defective heat exchanger or outdoor air temperature thermistor defective Outdoor unit PCB defective Water mixed in the local piping Electronic expansion valve defective Stop valve defective N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check No 6 Malfunctioning Check the thermistors gt Replace a defective Discharge pipe thermistor thermistor Outdoor unit heat exchanger thermistor Outdoor temperature thermistor Functioning Check 4 Malfunctioning Check the electronic expansion Replace the valve itself or valve the coil F
103. ensor 20 Drain hose the ambient temperature around the unit Appearance of the outdoor unit may differ from some models 5 62 System Configuration SiBE12 314 Instruction in case of FTK X S 25 35 BVMB B Remote Controller 1 2 HOME LEAVE 5 Kon OFF POWERFUL 6 4 LS mn 7 FAN 10 SENSOR 5 12 14 13 1 Signal transmitter e t sends signals to the indoor unit 2 Display t displays the current settings In this illustration each section is shown with all its displays ON for the purpose of explanation 3 HOME LEAVE button for HOME LEAVE operation page 16 4 POWERFUL button for POWERFUL operation page 14 5 TEMPERATURE adjustment buttons It changes the temperature setting 6 ON OFF button Press this button once to start operation Press once again to stop it 7 MODE selector button lt ARC433A1 A2 gt 10 11 12 13 14 15 16 e t selects the operation mode AUTO DRY COOL HEAT FAN page 10 SILENT button for OUTDOOR UNIT SILENT operation page 15 FAN setting button e t selects the air flow rate setting SWING button page 12 SENSOR button for INTELLIGENT EYE operation page 18 ON TIMER button page 21 OFF TIMER button page 20 TIMER Setting button t changes the time setting TIMER CANCEL button e t cancels the timer setting CLOCK
104. ent and Auto 5 Steps Silent and Auto Air Filter Removal Washable Mildew Proof Removal Washable Mildew Proof Running Current Rated A 0 40 0 40 0 40 0 40 Power Consumption Rated Ww 85 85 85 85 Power Factor 92 4 92 4 92 4 92 4 Temperature Control Microcomputer Control Microcomputer Control Dimensions HxWxD mm 260 900 580 260 900 580 Packaged Dimension mm 1 070x719x354 1 070x719x354 Weight kg 23 23 Gross Weight kg 32 32 Operation H M L SL dBA 39 37 36 33 40 38 36 33 39 37 36 33 40 38 36 33 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Liquid mm 6 4 9 6 4 Piping Connection Gas mm 9 5 9 5 Drain mm 27 2 27 2 Drawing No 3D038024 3D038024 Floor Ceiling Suspended Dual Type 230V 50Hz Model FLXS25BVMB FLXS35BVMB Cooling Heating Cooling Heating Rated Capacity 2 5kW Class 3 5kW Class Front Panel Color Almond White Almond White H 7 6 268 9 2 325 8 6 304 9 8 346 6 8 240 8 3 293 7 6 268 8 9 314 Air Flow Rates cfm L 6 0 212 74 261 6 6 283 8 0 282 SL 5 2 184 6 6 233 5 6 198 7 2 254 Type Sirocco Fan Sirocco Fan Fan Motor Output Ww 34 34 Speed Steps 5 Steps Silent and Auto 5 Steps Silent and Auto Air Direction Control Right Left Horizontal and Downward Right Left Horizontal and Downward Air Filter Removal Washable Mildew Proof Removal Washable Mildew Proof Running Current Rated A 0 32 0 34 0 36 0 36 Power Consumption Rated 70 74 78 78
105. ently push and slide the sensor to adjust the angle SS After adjusting the angle wipe the sensor gently lt with a clean cloth being careful not to scratch Moving the sensor to the left Moving the sensor to the right the sensor INTELLIGENT EYE is useful for Energy Saving Energy saving operation e Change the temperature 2 C in heating 2 C in cooling 1 in dry mode from set temperature Decrease the air flow rate slightly in fan operation In FAN mode only Notes on INTELLIGENT EYE Application range is as follows Vertical angle 80 Horizontal angle 100 Side View Top View e Sensor not detect moving objects further than 5m away Check the application range Sensor detection sensitivity changes according to indoor unit location the speed of pass ersby temperature range etc The sensor also mistakenly detects pets sunlight fluttering curtains and light reflected off of mirrors as passersby INTELLIGENT EYE operatipon will not go on during powerful operation Night set mode page 20 will not go on during you use INTELLIGENT EYE operation N CAUTION Do not place large objects near the sensor Also keep heating units or humidifiers outside the sensor s detection area This sensor can detect objects it shouldn t as well as not detect objects it should Do not hit or violently push the INTELLIGENT EYE sensor This can lead to damage and malfunction 19
106. eodorizing Function PAM Control 1 Longlife Filter Compressor Oval Scroll Compressor Ultra Longlife Filter Option Swing Compressor Mould Proof Air Filter O Rotary Compressor Wipe clean Flat Panel 1 Washable Grille Comfortable Power Airflow Flap Filter Cleaning Indicator Airflow Power Airflow Dual Flaps Good Sleep Cooling Operation Power Airflow Diffuser Timer 24 Hour On Off Timer Wide Angle Louvers Night Set Mode Vertical Auto Swing Up and Down Free Auto Restart after Power Failure Horizontal Auto Swing Les be amp Self Diagnosis Digital LED Display Right and Left y 3 D Airflow 3 Step Airflow H P Only Wiring Error Check SS Comfort Auto Fan Speed ol Anticorrosion Treatment of Outdoor __ Control Heat Exchanger Indoor Unit Silent Operation ol Flexibility Multi Split Split Type Compatible ol Indoor Unit Night Quiet Mode Automatic Flexible Voltage Correspondence Outdoor Unit Silent Operation lo High Ceiling Application Manual Intelligent Eye SEN NE Chargeless __ 20 m Quick Warming Function Power Selection Hot Start Function o Remote 5 Rooms Centralized Controller ol Control Option Automatic Defrosting Remote Control Adaptor O Normal Open P
107. equency gt 61 Hz is kept on for a certain time Note The values are different from model to model Gas shortage detection II When the condition of the following 1 3 continued for a certain time 1 During discharge pipe temperature control 2 Discharge pipe temp gt 255 256 x target discharge pipe temp 20 3 Electronic expansion valve opening the biggest value among operating units gt 450 If a gas shortage error takes place 4 times successively the system will be shut down The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time Refrigerant shortage refrigerant leakage Poor compression performance of compressor Discharge pipe thermistor disconnected or indoor unit or outdoor unit heat exchanger thermistor disconnected room or outdoor air temperature thermistor disconnected W Stop valve closed W Electronic expansion valve defective Service Diagnosis 121 Troubleshooting SiBE12 314 Troubleshooting Check No 4 Refer to P 126 Check No 6 Refer to P 128 N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Any thermistor YES p disconnected Discharge pipe thermistor position Indoor outdoor unit heat exchanger thermistor Room temperature thermistor Outdoor air thermistor YES Stop va
108. equency is set by the following 2 parameters coming from the operating indoor unit The load condition of the operating indoor unit The difference between the room temperature and the set temperature The target frequency is adapted by additional parameters in the following cases m Frequency restrictions Initial settings W Forced cooling operation To regulate the capacity a frequency control is needed The inverter makes it possible to vary the rotation speed of the compressor The following table explains the conversion principle Phase Description 1 2 The supplied AC power source 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 W When frequency increases the rotation speed of the compressor increases resulting in an increased refrigerant circulation This leads to a higher amount of the heat exchange per unit W When the frequency decreases the rotation speed of the compressor decreases resulting in a decreased refrigerant circulation This leads to a lower amount of the heat exchange per unit Drawing of The following drawing shows a schematic view of the inverter principle Inverter Refrigerant circulation rate high high speed Amount of heat Amount of heat exchanged air large exchanged air large Amount of heat Amount of he
109. er Consumption Rated Ww 40 40 Power Factor 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Dimensions HxWxD mm 273x784x185 273 784 185 Packaged Dimension mm 834x325x258 834x325x258 Weight kg 8 8 Gross Weight kg 11 11 H M L SL dBA 38 32 25 22 39 33 26 23 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Liquid mm 6 4 6 4 Piping Connection Gas mm 99 5 9 5 mm 18 0 18 0 Drawing No 3D040160A 3D040161A Conversion Formulae kcal h kWx860 Btu h KWx3414 cfm m minx35 3 10 Specifications SiBE12 314 Cooling Only Duct Connected Type 230V 50Hz Model CDKS25BVMB CDKS35BVMB Rated Capacity 2 5kW Class 3 5kW Class Front Panel Color H 12 7 448 13 0 459 m min M 11 7 413 12 0 424 Ar Fow Ratos L 10 7 378 11 0 388 SL 9 0 318 9 3 328 Type Sirocco Fan Sirocco Fan Fan Motor Output Ww 47 47 Speed Steps 5 Steps Silent and Auto 5 Steps Silent and Auto Air Filter Removal Washable Mildew Proof Removal Washable Mildew Proof Running Current Rated A 0 40 0 40 Power Consumption Rated Ww 85 85 Power Factor 92 4 92 4 Temperature Control Microcomputer Control Microcomputer Control Dimensions HxWxD mm 260 900 580 260 900 580 Packaged Dimension mm 1 070x719x354 1 070x71
110. er current due to defective PCB Error detection due to defective PCB Over current due to closed stop valve Over current due to compressor failure Over current due to poor installation condition Service Diagnosis 119 Troubleshooting SiBE12 314 Troubleshooting N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred An output over current may result from wrong internal wiring If the wires have been disconnected and Check No 7 reconnected for part replacement for example and the system is interrupted by an output over current Refer to P 129 take the following procedure Stop valve fully open gt Fully open the stop valve Check No 8 Refer to P 130 YES Turn off the power and turn it on again to get the system started See if the same error occurs Check No 13 Refer to P 132 Monitor the supply voltage Error again discharge and suction pressures and other factors for a long term y YES Possible causes Instantaneous supply voltage Turn off the power and disconnect drop Keep on using as it is the harnesses U V and W Compressor motor overloaded monitor Contact induced electrical short Check the electricals circuit connectors and other Y fittings Inverter checker Check with the inverter checker Part No 1225477 Y YES Any LED off Correct the power supply o
111. er thermistor is used for anti icing control During the cooling operation if the heat exchanger temperature in the room where operation is halted becomes 1 C or if the room temperature heat exchanger temperature in the room where operation is halted becomes 210 C it is assumed as icing During heating the indoor heat exchanger thermistor is used for detecting the discharge pipe thermistor disconnected When the discharge pipe temperature become lower than an indoor heat exchanger temperature a disconnected discharge pipe thermistor can be detected When only one indoor unit is operating the indoor heat exchanger thermistor is used for sub cooling control An actual sub cooling must be calculated from an indoor liquid pipe temperature and a heat exchanger temperature The indoor heat exchanger thermistor controls the electronic expansion valve opening to get a target sub cooling When only one indoor unit is heating the indoor liquid pipe thermistor is used for a sub cooling control The system calculates an actual sub cooling from the temperature of indoor liquid pipes and a heat exchanger temperature controls the electronic expansion valve to make the appropriate target sub cooling When all indoor units are heating the indoor liquid pipe thermistor is used for liquid pipes isothermal control The system controls electronic expansion valves to make liquid pipe temperatures the average of present temperature of each room
112. eration cannot be used at the same time Priority is given to POWERFUL operation f operation is stopped using the remote controller or the main unit ON OFF switch when using OUTDOOR UNIT SILENT operation 19 will remain on the remote controller display 15 72 System Configuration SiBE12 314 Instruction in case of FTK X S 25 35 BVMB 2 8 HOME LEAVE Operation HOME LEAVE Operation HOME LEAVE operation is a function which allows you to record your preferred temperature and air flow rate settings To start HOME LEAVE operation DAIKIN 1 Press HOME LEAVE button The HOME LEAVE lamp lights up ON e er C To cancel HOME LEAVE 1 2 operation 2 Press HOME LEAVE button again The HOME LEAVE lamp goes off MODE FAN SILENT SENSOR CANCEL TIMER Before using HOME LEAVE operation To set the temperature and air flow rate for HOME LEAVE operation When using HOME LEAVE operation for the first time please set the temperature and air flow rate for HOME LEAVE operation Record your preferred temperature and air flow rate Initial setting Selectable range temperature Air flow rate temperature Air flow rate Cooling 25 AUTO 18 32 5 step AUTO and SILENT Heating 25 AUTO 10 30 5 step AUTO and SILENT 1 Press HOME LEAVE button Make sure is displayed in the remote control ler d
113. etecting human Prohibition of thermostat off incase of thermostat off Remote controller Intelligent Eye ON button OFF 1 a Operation ON Fan speed 1 Set speed Set speed Set speed 50 rpm OFF R2822 m When microcomputer doesn t have a signal from the sensor in 20 minutes it judges that nobody is in the room and operating the unit in temperature sifted 2 C from the set temperature Cooling 2 C higher Dry 1 C higher and Auto according to the operation mode at that time 1 In case of Fan mode the fan speed reduces by 50 rpm Function and Control 33 Main Functions SiBE12 314 Since the set temperature is shifted 2 C higher for 40 minutes compressor speed becomes low and can realize energy saving operation But as thermostat is prone to be off by the fact that the set temperature has been shifted the thermostat off action is prohibited in 40 minutes so as to prevent this phenomena After this 40 minutes the prohibition of the thermostat off is cancelled and it can realize the conditions to conduct thermostat off depending on the room temperature In or after this forty minutes if the sensor detects human motion detection signal it let the set temperature and the fan speed return to the original set point keeping a normal operation Others W The dry operation can t command the setting temperature with a remote controller but internall
114. f the operation or ending the defrosting Conditions for Canceling Defrost The judgment must be made with heat exchanger temperature 4 C 12 C PI control Frequency 120sec 60sec 530 sec 30sec lt ON Compressor ON Four way valve ON Fan electronic expansion 450pps 350pps 450pps Initial opening valve opening Operation stopped room f 140pps 160pps electronic expansion Initial opening valve opening Opps R2962 Function and Control 49 Control Specification SiBE12 314 3 11 Electronic Expansion Valve Control Outline 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 1 Gas pipe isothermal control 2 SC control Only for Heat Pump Model Open Control 1 Electronic expansion valve control when starting operation Control when frequency changed Control for defrosting only for heat pump model recover control Control when a discharge pipe temperature is abnormally high Control when the discharge pipe thermistor is disconnected Control for indoor unit freeze up protection Feedback Control 1 Discharge pipe temperature control Distribution control for each room
115. frequency m Command frequency will be determined in the following order of priority 1 1 Limiting frequency by drooping function input current discharge pipes low Hz high pressure limit peak cutting freeze prevention dew prevention fin thermistor temperature 1 2 Limiting defrost control time 1 3 Forced cooling 1 4 Indoor frequency command 2 Determine upper limit frequency Set a minimum value as an upper limit frequency among the frequency upper limits of the following functions Compressor protection input current discharge pipes Low Hz high pressure peak cutting freeze prevention defrost Determine lower limit frequency Set a maximum value as an lower limit frequency among the frequency lower limits of the following functions Four way valve operating compensation draft prevention pressure difference upkeep 4 Determine prohibited frequency There is a certain prohibited frequency such as a power supply frequency e For Cooling Only Model 1 Determine command frequency Command frequency will be determined in the following order of priority 1 1 Limiting frequency by drooping function input current discharge pipes freeze prevention dew prevention fin thermistor temperature 1 2 Indoor frequency command Function and Control 43 Control Specification SiBE12 314 2 Determine upper limit frequency Seta minimum value as an upper limit frequency among the frequency upper
116. ft side and the right side blades Notes on flaps and louvers angles e When SWING button is selected the flaps swinging range depends on the operation mode See the figure ATTENTION Always use a remote controller to adjust the flaps angle If you attempt to move it forcibly with hand when it is swinging the mechanism may be broken Be careful when adjusting the louvers Inside the air outlet a fan is rotating at a high speed In DRY mode or COOL mode When stop operation vi Upper limit in cooling 25 Lower limit in cooling When stop operation 2 Upper limit in heating 25 Lower limit in heating 13 70 System Configuration SiBE12 314 Instruction in case of FTK X S 25 35 BVMB 2 6 POWERFUL Operation POWERFUL Operation POWERFUL operation quickly maximizes the cooling heating effect in any operation mode You can get the maximum capacity To start POWERFUL operation 1 Press POWERFUL button POWERFUL operation ends in 20 minutes Then the system automatically operates again with the settings which were used HOME LEAVE 1 before POWERFUL operation GONOFF When using POWERFUL operation TEMP 1 2 there are some functions which are not kr e d available To cancel POWERFUL operation 2 Press POWERFUL button again NOTE Notes on POWERFUL operation e In COOL and HEAT mode To maximi
117. g mode may be disabled depending on the room temperature of low outdoor air Use the remote control for trial operation as described below temperature Trial operation from Remote Controller 1 Press ON OFF button to turn on the system 2 Simultaneously press center of TEMP button and MODE buttons 3 Press MODE button twice will appear on the display to indicate that Trial Operation mode is selected 4 Trial run mode terminates in approx 15 minutes and switches into normal mode To quit a trial operation press ON OFF button After trial operation is complete set the temperature to a normal level 26 C to 28 For protection the machine disables restart operation for 3 minutes after it is turned off 3 Carry out the test operation in accordance with the Operation Manual to ensure that all functions and parts such as louver movement are working properly The air conditioner requires a small amount of power in its standby mode If the system is not to be used for some time after installation shut off the circuit breaker to eliminate unnecessary power consumption f the circuit breaker trips to shut off the power to the air conditioner the system will restore the original operation mode when the circuit breaker is opened again ON OFF R2586 160 Others SiBE12 314 Others 1 2 Jumper Settings 1 2 1 When Two Units are Installed in One Room Howto set the different addresse
118. ge detection circuit W Anover voltage signal is fed from the over voltage detection circuit to the microcomputer or more than 430 V occurred the voltage detected by the DC voltage detection circuit W The system will be shut down if the error occurs 4 times W Clearing condition Continuous run for about 60 minutes normal W Supply voltage not as specified Over voltage detector or DC voltage detection circuit defective m PAM control part s defective Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred N Caution Check the supply voltage Supply voltage as NO specified gt Correct the power supply Precaution before turning on the power again Make sure the power has been off for at least 30 seconds FU eS YES Disturbance factors hf f power again _ Check for such factors for a System restarted Noise Power supply distortion long term Try to get restarted a couple of times Repeata O O couple of times Replace the SPM Replace the outdoor unit PCB R2854 nm Note If the model doesn t have SPM replace the outdoor unit PCB Service Diagnosis 1238 Troubleshooting SiBE12 314 4 22 Anti icing Function in Other Rooms Unspecified Voltage between Indoor and Outdoor Units Remote Controller Display Method of Malfunction Detection Malfunction
119. ger fin m Remove the putty if the brazing flame burn it Caution for restoration Wrap the electronic expansion valve with wet cloth and provide water so that the cloth will not be dried and avoid excessive heating Removal Procedure 155 Outdoor Unit SiBE12 314 1 8 Removal of the Compressor Procedure Warning sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points Remove the terminal cover Unscrew the nut of the compressor Overload protection device R2938 R2939 R2940 Be careful so as not to burn the compressor terminals or the name plate Make a note 156 Removal Procedure SiBE12 314 Outdoor Unit Step Procedure Points W Before working make sure that the refrigerant is empty in the circuit Be sure to apply nitrogen replacement when heating up the brazed part Heat up the brazed part of the discharge side and disconnect Heat up the brazed part of the suction side and disconnect Lift the compressor up and remove it R2941 R2942 R2943 N Warning Since it may happen that refrigeration oil in the compressor will catch fire
120. gher R1361 Heating Operation 2C 1 Thermostat setting 1 1 hour later Night Set Circuit ON R1362 32 Function and Control SiBE12 314 Main Functions 1 7 Intelligent Eye This is the function that detects existence of humans in the room by a human motion sensor Intelligent Eye and reduces the capacity when there is no human in the room in order to save electricity Processing 1 Detection method by Intelligent Eye If the sensor detects the outputs 10 times sec or more it judges humans exist sampling 20msec 4886 Sensor output High Human motion Human detection ON signal OFF R2821 W This sensor detects human motion by receiving infrared rays and displays the pulse wave output Amicrocomputer an indoor unit carries out a sampling every 20 msec and if it detects 10 cycles of the wave in one second in total corresponding to 20 10 100msec it judges human is in the room as the motion signal is ON 2 The motions for example in cooling within 20 minutes 20 min 20 min gt o 40 min diend 1 P Human detection d signal OFF RESET C O Set temp 2 C 1 H P Set temp 2 C Set temp MaxHz Frequency settemp 2 2 OHz lower limit by d
121. gnosis SiBE12 314 Check 5 1 4 Installation Condition Check Check No 7 Installation condition check the allowable Abnormal dimensions of the air suction and discharge Normal the discharged air from other outdoor YES unit cause an increase of the suction air emperature Is the heat exchanger YES very dirty Is the air flow blocked by obstacles or YES winds blowing in the opposite direction Change the position of the air discharge grille or the installation location Change the position of the air discharge grille or the installation location Clean the heat exchanger Change the installation location or direction Check the outside air temperature temperature of air taken in by the outdoor unit The outside air temperature shall be 46 C or lower R3048 Service Diagnosis 129 SiBE12 314 5 1 5 Discharge Pressure Check Check No 8 Discharge pressure check NO T Replace compessor YES NO Y Open the stop valve Is the stop valve open Is the NO connection pipe deformed Replace the pipe installed at the site Are the heat exchanger and Dirty Clean air filter dirty Not dirty Replace the compressor R3049 5 1 6 Outdoor Unit Fan System Check With DC Motor Check No 9
122. harge piping is lower than the temperature of outdoor heat exchanger a disconnected discharge thermistor can be detected 3 The outdoor heat exchanger thermistor is used for high pressure protection during cooling operation 1 The discharge pipe thermistor is used to control the discharge pipe If the temperature of discharge pipe used in place of the inner temperature of the compressor rises abnormally the operating frequency drops or the operation must be halted 2 The discharge pipe thermistor is used for detecting the discharge thermistor disconnected When cooling a gas pipe thermistor is used for gas pipe isothermal control Control electronic expansion valve opening so that a gas pipe temperature in each room becomes equal Function and Control 39 Function of Main Structural Parts SiBE12 314 D Indoor Heat Exchanger Thermistor DCN E Indoor Liquid Pipe Thermistor DLN 1 The indoor heat exchanger thermistor is used for controlling target discharge pipe temperature Set a target discharge pipe temperature according to the outdoor and indoor heat exchanger temperature Control the electronic expansion valve so that the target discharge pipe temperature can be obtained The indoor heat exchanger thermistor is used to prevent freezing During the cooling operation if the temperature drops abnormally the operating frequency becomes lower then the operation must be halted The indoor heat exchang
123. here you bought the air conditioner The maintenance cost must be born by the user 29 3P098574 1D 86 System Configuration SiBE04 314 Part 6 Service Diagnosis 1 Caution for DIAGNOSE estero eerie ntu ene eee ote 88 2 Problem Symptoms and 90 3 Service Cheek Function un cse ob tren 91 A Troubleshooting aa Goes dea mob eter SS 92 4 1 Error Codes and 92 42 Indoor Unit PCB Abnormality stre retentie 93 4 3 Freeze up Protection Control or High Pressure Control 94 4 4 Fan Motor AC Motor or Related 96 4 5 Thermistor or Related Abnormality Indoor 97 4 6 Ahti rcing esse i dad Ue 98 4 7 OL Activation Compressor Overload 100 4 8 Compressor LOEK eoim arm lemen ANDR 101 49 DG LOCK 102 4 10 Input Over Current 2 44 103 4 11 Four Way Valve Abnormality esee 105 4 12 Discharge Pipe Temperature Control 107 4 13 High Pressure Control in 108 4 14 Position Sensor Abnormality 110 4 15 CT or Related
124. hooting These cases are not troubles The following cases are not air conditioner troubles but have some reasons You may just continue using it Case Explanation Operation does not start soon This is to protect the air conditioner When ON OFF button was You should wait for about 3 minutes pressed soon after operation was stopped When the mode was reselected Hot air does not flow out soon The air conditioner is warming up You should wait for 1 to 4 after the start of heating minutes operation The system is designed to start discharging air only after it has reached a certain temperature The heating operation stops The system is taking away the frost on the outdoor unit suddenly and a flowing sound You should wait for about 3 to 8 minutes is heard The outdoor unit emits water In HEAT mode steam The frost on the outdoor unit melts into water or steam when the air conditioner is in defrost operation COOL or DRY mode Moisture in the air condenses into water on the cool surface of outdoor unit piping and drips Mists come out of the indoor This happens when the air in the room is cooled into mist by unit the cold air flow during cooling operation The indoor unit gives out odour This happens when smells of the room furniture cigarettes are absorbed into the unit and discharged with the air flow If this happens we recommend you to have the indoor unit
125. ic expansion valve according to the shift 3 11 10Target Discharge Pipe Temperature Control Obtain the target discharge pipe temperature from the indoor and outdoor heat exchange temperature and adjust the electronic expansion valve opening so that the actual discharge pipe temperature become close to that temperature Indirect SH control using the discharge pipe temperature Set the target discharge pipe Sc temperature as to become an aiming SH 7 Regard that the inclination cannot be SH changed due to the operating condition R1389 Determine a correction value of the electronic expansion valve compensation and drive it according to the deflection of the target discharge temperature and actual discharge temperature and the discharge temperature variation by the 20 sec 3 11 11SC Control Outline Detail Heat Pump Only Detect the temperature of liquid pipe and heat exchanger of the rooms and compensate the electronic expansion valve opening so that the SC of each room becomes the target SC When the actual SC is gt target SC open the electronic expansion valve of the room When the actual SC is lt target SC close the electronic expansion valve of the room Start Functioning Conditions After finishing the open control 810 seconds after the beginning of the operation control all the electronic expansion valve in the operating room Determine Electronic Expansion Valve Opening Adjust the electronic e
126. ing 18 1 1 Wal Mounted Type ct e t RE Ee cbe denn in 18 1 2 Connected Type ee eee 20 1 3 Floor Ceiling Suspended Dual 21 154 M HC ERR 23 Printed Circuit Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram SiBE12 314 1 Printed Circuit Board Connector Wiring Diagram 1 1 Wall Mounted Type Name of Connector 1 61 2 S6 3 S7 4 S21 5 S26 6 S27 7 S32 8 S35 Connector for fan motor Connector for swing motor Horizontal Flap Connector for fan motor Connector for centralized control Connector for display PCB Connector for control PCB Connector for room temp heat exchanger thermistor Connector for Intelligent Eye Sensor PCB m Note Other designations 1 Vi Varistor 2 JA ADDRESS SETTING JAMPER JB Fan speed setting when compressor is OFF on thermostat JC Power failure recovery function Refer to page 161 for more detail 3 SW7 OPERATION SWITCH 4 LED1 LED for operation Green 5 LED2 LED for timer Yellow 6 LED3 LED for Home Leave Operation Red Control PCB PCB1 Display PCB PCB2 Intelligent Eye Sensor PCB PCB3 Control PCB 1 51 2 GRN YLW RED S27 LED1 LED2 LED3 sur 12V check Jumpe
127. ing condition Continuous run for about 5 minutes normal Over current due to compressor failure Over current due to defective power transistor Over current due to defective inverter main circuit electrolytic capacitor Over current due to defective outdoor unit PCB Error detection due to outdoor unit PCB Over current due to short circuit Service Diagnosis 103 Troubleshooting SiBE12 314 Troubleshooting Check No 7 Refer to P 129 Check No 8 Refer to P 130 Check No 14 Refer to P 132 n Note If the model doesn t have SPM replace the outdoor unit PCB N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred An input over current may result from wrong internal wiring If the wires have been disconnected and reconnected for part replacement for example and the system is interrupted by an input over current take the following procedure Get restarted and measure the input current gt Replace the outdoor unit PCB Input current flowing NO above its stop level Check No 14 Check the main circuit electrolytic capacitor NO Normal YES Turn off the power and disconnect the harnesses U V and W Y Check with the inverter checker YES Replace the electrolytic capacitor Inverter checker Part No 1225477 Any LED off NO Turn off the power a
128. ing function 98 OL activation compressor overload 100 Compressor lock 101 El DC fan lock 102 Input over current detection 103 ER Four way valve abnormality 105 F3 Discharge pipe temperature control 107 F5 High pressure control in cooling 108 HE Position sensor abnormality 110 CT or related abnormality 111 HS Outdoor air thermistor or related abnormality 113 JI Discharge pipe temperature thermistor or related abnormality 113 exchanger temperature thermistor related abnormality 113 48 Liquid pipe temperature thermistor or related abnormality 113 48 Gas pipe temperature thermistor or related abnormality 113 L3 Electrical box temperature rise 115 14 Radiation fin temperature rise 117 L5 Output over current detection 119 Radiation fin thermistor or related abnormality 113 Displayed only when system down occurs 92 Service Diagnosis SiBE12 314 Troubleshooting 4 2 Indoor Unit PCB Abnormality Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Evaluation of zero cross detection of power supply by indoor unit When there is no zero cross detection in approximately 10 continuous seconds m Faulty indoor unit PCB Faulty connector connection N Be sure to turn off power switch before connect or disconnect connector Caution or pa
129. ing switching point 2 5 deg or higher Heating thermostat OFF point Wa 1 5 deg Main unit setting or higher temperature Cooling thermostat DN Less than OFF point gt e 1 5 deg Cooling i 2 5 deg heating switching point Cooling Heating Cooling or higher operation operation operation ILE With compressor capacity supplied With no compressor capacity supplied R1360 Function and Control 31 Main Functions SiBE12 314 1 6 Night Set Mode When the OFF timer is set the Night Set Circuit automatically activates The Night Set circuit maintains the airflow setting made by users The Night Set The Night Set circuit continues heating or cooling the room at the set temperature for the first Circuit one hour then automatically lowers the temperature setting slightly in the case of cooling or raises it slightly in the case of heating for economical operations This prevents excessive heating in winter and excessive cooling in summer to ensure comfortable sleeping conditions and also conserves electricity Cooling Operation Temperature setting 1 C Temperature setting 0 5 C _ Temperature 7 setting stops at set hours pum pum i 0 5 temperatureshit Night Set Circuit ON p Temperature setting remains the same 9 When outside temperature is normal and room temperature is at set temperature When outside temperature is high 27 C or hi
130. install the air conditioner by your self Incorrect work will result in water leakage electric shocks or fire For installation consult the dealer or a qualified technician e n order to avoid electric shock fire or injury if you detect any abnormally such as smell of fire stop the operation and turn off the breaker And call your dealer for instructions The air conditioner must be earthed Incomplete earthing may result in electric shocks Do not connect the earth line to a gas pipe water pipe lightening rod or a telephone earth line The refrigerant used in the air conditioner is safe Although leaks should not occur if for some Q order to avoid any quality deterioration do not use the unit for cooling precision instruments food plants animals or works of art e Never expose little children plants or animals directly to the air flow Do not place appliances which produce open fire in places exposed to the air flow from the unit or under the indoor unit It may cause incomplete combustion or deformation of the unit due to the heat Do not block air inlets nor outlets Impaired air flow may result in insufficient performance or trouble System Configuration 59 Instruction in case of 5 25 35 SiBE12 314 Do not stand or sit on the outdoor unit Do not place any object on the unit to avoid injury do not remove the fan guard Do not place a
131. ion After this if freezing abnormality occurs more than specified time the system shall be down as the system abnormality 3 14 Forced Operation Mode Outline Detail Forced operating mode includes only forced cooling Forced Cooling Item Forced Cooling Forced operation allowing conditions 1 The indoor unit is not abnormal but the indoor unit which is not in the freezing prohibiting zone is present in more than 1 room 2 The outdoor unit is not abnormal and not in the 3 minute stand by mode The forced operation is allowed when the above and conditions are met Starting adjustment When the indoor unit on off button is pressed for continuous 5 second as the above conditions are met 1 Determine operating room All rooms must operate 2 Command frequency 70Hz 3 Electronic expansion valve opening Depending on the capacity of the operating indoor unit 4 Outdoor unit adjustment E Compressor is in operation 5 Indoor unit adjustment E Transmit the command of forced cooling operation to all indoor units End 1 When the indoor units on off button of the unit which sent the command is pressed again 2 The operation is to end automatically after 15 min Others The protect functions are prior to all others in the forced operation 3 15 Additional Function 3 15 1 Powerful Operation Mode Compressor operating frequency a
132. ion speed detected by the IC during fan motor operation is used to determine abnormal fan motor operation When the detected rotation speed is less than 50 of the HH tap under maximum fan motor rotation demand Operation halt due to short circuit inside the fan motor winding Operation halt due to breaking of wire inside the fan motor Operation halt due to breaking of the fan motor lead wires Operation halt due to faulty capacitor of the fan motor Detection error due to faulty indoor unit PCB Caution Operate the fan Does it rotate NO Check No 16 Check hall IC Rotate the fan by hand Does it rotate smoothly YES Is there an output Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred NO Replace the fan motor or indoor unit PCB Check the fan motor voltage immediately after re start Check the fan motor voltage s it at the rated voltage s it at the rated voltage NO gt Replace the fan motor 2 Measure the voltage between the red and black lead wires of the fan motor and check if the maximum voltage reaches the rated voltage Replace indoor unit PCB 1 Replace the fan motor Check the capacitor s conductivity Is there conductivity YES 7 Replace the indoor unit PCB 1 gt Replace
133. ipe temperature Defrost control 1 Y only for heat pump model Stop Pressure equalizing control Y Heating 1 room operation only for heat y pump model Control of discharge pipe thermistor disconnection Open control when starting Y Continue Y Stop Pressure equalizing control R3036 Function and Control 51 Control Specification SiBE12 314 3 11 1 Fully Closing with Power On Initialize the electronic expansion valve when turning on the power set the opening position and develop pressure equalizing 3 11 2 Pressure Equalization Control When the compressor is stopped open and close the electronic expansion valve and develop pressure equalization 3 11 3 Opening Limit Outline Limit a maximum and minimum opening of the electronic expansion valve in the operating room Detail maximum electronic expansion valve opening the operating room 450 pulses W Aminimum electronic expansion valve opening in the operating room 60 pulses The electronic expansion valve is fully closed in the room where cooling is stopped and is opened with fixed opening during defrosting 3 11 4 Starting Operation Changing Operating Room Control Control the electronic expansion valve opening when the system is starting or the operating room is changed and prevent the system to be super heated or moistened 3
134. ir temperature and the operating frequency and operate for a specified time and then stop After 3 minutes of waiting restart the unit and check if any is disconnected If any is disconnected stop the system after operating for a specified time If the disconnection is detected 4 times in succession then the system will be down 52 Function and Control SiBE12 314 Control Specification Detail Detect Disconnection If a 780 second timer for open control becomes over the following adjustment must be made 1 When the operation mode is cooling When the discharge pipe temperature is lower than the outdoor heat exchanger temperature the discharge pipe thermistor disconnection must be ascertained 2 When the operation mode is heating only for heat pump model When the discharge pipe temperature is lower than the max temperature of operating room heat exchanger the discharge pipe thermistor disconnection must be ascertained When the condition of the above 1 or 2 is decided the system will stop after operating for continuous 9 minutes Adjustment when the thermistor is disconnected When compressor stop repeats specified time the system should be down 3 11 9 Control when frequency is changed When the target discharge pipe temperature control is active if the target frequency is changed for a specified value in a certain time period cancel the target discharge pipe temperature control and change the target opening of the electron
135. is wrap the four way valve with wet cloth and provide water so that the cloth will not be dried and avoid excessive heating In case of the difficulty with gas R2933 brazing machine Keep below 120 1 Disconnect the brazed part where is easy to disconnect and restore 2 Cutpipes on the main unit by a miniature copper tube cutter in order to make it easy to disconnect Note Do not use a metal saw for cutting pipes by all means because the sawdust come into the circuit R2932 R2934 154 Removal Procedure SiBE12 314 Outdoor Unit 1 7 Removal of the Electronic Expansion Valve Procedure N Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the electronic expansion valve coil 2 Remove the sheets of putty 3 Heat up the four brazed parts and disconnect in a b c d order R2936 R2937 W Fitthe claw of the electronic Ventilate when refrigerant leaks during the work cause to arise toxic gas which were heated up by a gas brazing machine so as not to get burnt your hands expansion valve coil as it was when reassembling Warning If refrigerant contacts fire it will Caution Be careful about the pipes Be careful so as not to burn the heat exchan
136. is missing or if its battery has run out Every press of the switch changes from Operation to Stop or from Stop to Operation R2948 Push this button once to start operation Push once again to stop it W This button is useful when the remote controller is missing W The operation mode refers to the following table Mode Temperature setting Air flow rate Cooling Only COOL 22 C AUTO Heat Pump AUTO 25 C AUTO m In the case of multi system operation there are times when the unit does not activate with this button 1 10 4 Photocatalytic Deodorizing Filter Photocatalytic Deodorizing Filter demonstrates powerful oxidation characteristics when subjected to harmless ultraviolet light Photocatalytic deodorizing power is recovered simply by exposing the filter to the sun for 6 hours once every 6 months 1 10 5 Air Purifying Filter A double structure made up of a bacteriostatic filter and an Air Purifying Filter traps dust mildew mites tobacco smoke and allergy causing pollen Replace the Air Purifying Filter once every 3 months 1 10 6 Mold Proof Air Filter The filter net is treated with mold resisting agent TBZ harmless colorless and odorless Due to this treatment the amount of mold growth is much smaller than that of normal filters 1 10 7 Self Diagnosis Digital Display The microcomputer continuously monitors main operating conditions of the indoor unit outdoor unit and the entire system When an abnormal
137. is not specified Refrigerant shortage Four way valve malfunctioning Outdoor unit PCB defective Water mixed in the local piping Electronic expansion valve defective Stop valve defective N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred YES Discharge pipe thermistor gt Insert the thermistor in disconnected position 6 Malfunctioning Check the thermistors A gt gt Replace the discharge pipe Discharge pipe thermistor thermistor Functioning Check No 4 Check the motor operated valve Malfunctioning Replace the valve itself or the coil Functioning Check No 5 Malfunctioning Check the four way valve gt Replace the four way valve or the valve itself Replace the outdoor unit C Functioning PCB Check No 11 Check the refrigerant line Maltunenoning Refer to the refrigerant line Refrigerant shortage check procedure Water mixed Stop valve defective Functioning Replace the outdoor unit PCB R2841 100 Service Diagnosis SiBE12 314 Troubleshooting 4 8 Compressor Lock Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting compressor lock is detected by checking the compressor running conditi
138. isplay 2 Adjust the set temperature with W as you like 3 Adjust the air flow rate with FAN setting button as you like Home leave operation will run with these settings the next time you use the unit To change the recorded information repeat steps 1 3 16 System Configuration 73 Instruction in case of FTK X S 25 35 SiBE12 314 What s the HOME LEAVE operation Is there a set temperature and air flow rate which is most comfortable a set temperature and air flow rate which you use the most HOME LEAVE operation is a function that allows you to record your favor ite set temperature and air flow rate You can start your favorite operation mode simply by pressing the HOME LEAVE button on the remote controller This function is convenient in the following situations B Useful in these cases 1 Use as an energy saving mode Set the temperature 2 3 higher cooling or lower heating than normal Setting the fan strength to the lowest setting allows the unit to be used in energy saving mode Also convenient for use while you are out or sleeping Every day before you leave the house EE pm _ mx gt gm gt Le A 4 9 1 A 1 LE ay OT 3 4 1 When you go out push the HOME LEAVE When you return you will be wel Push the HOME LEAVE Operation Operation button and the air conditioner
139. ity occur the LCD remote controller displays error code These indications allow prompt maintenance operations 1 10 8 Auto restart Function Even if a power failure including one for just a moment occurs during the operation the operation restarts in the condition before power failure automatically when power is restored Note It takes 3 minutes to restart the operation because the 3 minute standby function is activated Function and Control 37 Function of Main Structural Parts SiBE12 314 2 Function of Main Structural Parts 2 1 Main Structural Parts Heat Pump Model Expansion valve Receiver Compressor 2970 Cooling Only Model Expansion valve Compressor R2971 38 Function and Control SiBE12 314 Function of Main Structural Parts 2 2 Function of Thermistor 2 2 1 Heat Pump Model A Outdoor Heat Exchanger Thermistor DCB B Discharge Pipe Thermistor DOT C Gas Pipe Thermistor DGN 92972 1 The outdoor heat exchanger thermistor is used for controlling target discharge temperature Set a target discharge temperature depending on the outdoor and indoor heat exchanger temperature Control the electronic expansion valve opening so that the target discharge temperature can be obtained 2 The outdoor heat exchanger thermistor is used for detecting the discharge thermistor disconnected when cooling When the temperature of the disc
140. le of Contents SiBE12 314 Introduction 1 Introduction 1 1 Safety Cautions Cautions and Be sure to read the following safety cautions before conducting repair work Warnings The caution items are classified into Warning IN Caution The A 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 About the pictograms A This symbol indicates an item for which caution must be exercised The pictogram shows the item to which attention must be paid This symbol indicates a prohibited action The prohibited item or action is shown inside or near the symbol This symbol indicates an action that must be taken or an instruction The instruction is shown inside or near the symbol 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 1 1 1 Caution in Repair AN Warning Be sure to disconnect the power cable plug from the plug socket before disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipmen
141. ller fan 2 Disconnect the 1 the fan motor lead wire from the ditch of the electrical box connector for fan motor S70 lead wire n ZA L7 TR R2881 138 Removal Procedure SiBE12 314 Outdoor Unit Step 3 Pull the fan motor lead wire away Procedure Points R2882 4 Release the four claws and remove the electrical box cover 5 Unscrew the washer fitted nut M10 of the propeller fan with 1 TERREA S ny RAAS u ES R2884 Removal Procedure 139 Outdoor Unit SiBE12 314 Step Procedure Points 6 Remove the propeller m Align w mark of the propeller fan fan with D cut section of the motor shaft when reassembling Washer fitted nut 8 R2885 7 Remove the two screws from the fan motor i um
142. lt Inverter olo Health amp Air Purifying Filter with Bacteriostatic ol Function with Inverter Power Control Clean amp Virustatic Functions Operation Limit for Cooling C 10 Photocatalytic Deodorizing Filter Saka 46 Operation Limit for Heating Air Purifying Filter with e Photocatalytic Deodorizing Function PAM Control Longlife Filter Compressor Oval Scroll Compressor Ultra Longlife Filter Option Swing Compressor Mould Proof Air Filter Rotary Compressor Wipe clean Flat Panel Reluctance DC Motor Washable Grille O Comfortable Power Airflow Flap Filter Cleaning Indicator AIO Power Airflow Dual Flap Good Sleep Cooling Operation Power Airflow Diffuser Timer 24 Hour On Off Timer Wide Angle Louvers Night Set Mode O Vertical Auto Swing Up and Down Free Auto Restart after Power Failure Horizontal Auto Swing su amp Self Diagnosis Digital LED Display Right and Left y Ox 3 D Airflow 3 Step Airflow Only Wiring Error Check Comfort Auto Fan Speed ol Anticorrosion Treatment of Outdoor Control Heat Exchanger Indoor Unit Silent Operation ol Flexibility Multi Split Split Type Compatible ol Indoor Unit Night Quiet Mode Automatic Flexible Voltage Correspondence OO Outdoor Unit Silent Ope
143. lve closed gt Open the stop valve Check for gas leakage Oil oozing at relay pipe Repair the pipe flare connections p replace the square union YES Oil oozing at internal piping NO Check the power transistor harness for looseness Correct it as required Also replace cracked pipe if any Compressor vibrating too much Check No 4 Electronic expansion valve functioning gt Check the pipes for improper contact Correct as required Also replace cracked pipe if any Replace the electronic Tm expansion valve Malfunctioning Check the CT CT in trouble refer to H8 Functioning Change for a specified amount of fresh refrigerant YES Gas shortage error again Replace the room temperature or outdoor air thermistor or the indoor unit or outdoor unit heat exchanger thermistor Malfunctioning NO Check No 6 Check the thermistors Functioning 1 Replace the PCB 2 Replace the compressor Procedure complete R2853 122 Service Diagnosis SiBE12 314 Troubleshooting 4 21 Over voltage Detection Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting ue An abnormal voltage rise is detected by checking the detection circuit or DC volta
144. m the indoor unit must be divided as follows Detail Conditions for Start Controlling Judge the controlling start with the indoor heat exchanger temperature after 2 min from operation start and sec from changing number of operation room Control in Each Zone The maximum value of heat exchange intermediate temperature of each indoor unit controls the following excluding stopped rooms Stop zone When increase 30 When decrease 2 Drooping zone Unchanged zone Up zone Heat exchanger thermistor Reset zone temperature R1380 Function and Control 47 Control Specification SiBE12 314 3 8 Fan Control Outline Detail Fan control is carried out according to the following priority 1 Fan ON control for electric component cooling fan 2 Fan control when defrosting 3 Fan OFF delay when stopped 4 ON OFF control when cooling operation 5 Fan control when the number of heating rooms decreases 6 Fan control when forced operation 7 Fan control in indoor outdoor unit silent operation 8 Fan control during heating operation 9 Fan control in the powerful mode 10 Fan control for pressure difference upkeep Fan OFF Control when Stopped m Fan OFF delay for 60 seconds must be made when the compressor is stopped Tap Control in Indoor Outdoor Unit Silent Operation 1 When Cooling Operation When the outdoor air temperature is 18 37 C the fan tap must be set to M
145. moval Washable Mildew Proof Running Current Rated A 0 18 0 18 0 18 0 18 Power Consumption Rated Ww 40 40 40 40 Power Factor 96 6 96 6 96 6 96 6 Temperature Control Microcomputer Control Microcomputer Control Dimensions HxWxD mm 273x784x185 273x784x185 Packaged Dimension mm 834 325 258 834 325 258 Weight kg 8 8 Gross Weight kg 11 11 H WL SL dBA 38 32 25 22 38 33 28 25 39 33 26 23 39 34 29 26 Heat Insulation Both Liquid and Gas Pipes Both Liquid and Gas Pipes Liquid mm 96 4 964 Piping Connection Gas mm 9 5 9 5 Drain mm 18 0 18 0 Drawing No 30040168 30040169 Conversion Formulae kcal h kWx860 Btu h KWx3414 cfm2me minx35 3 Specifications 13 SiBE12 314 Duct Connected Type 230V 50Hz Model CDXS25BVMB CDXS35BVMB Cooling Heating Cooling Heating Rated Capacity 2 5kW Class 3 5kW Class Front Panel Color m E H 12 7 448 12 7 448 13 0 459 13 0 459 m min M 11 7 413 11 7 413 12 0 424 12 0 424 Air Fow Rates cfm L 10 7 378 10 7 378 11 0 388 11 0 388 SL 9 0 318 9 0 318 9 3 328 9 3 328 Type Sirocco Fan Sirocco Fan Fan Motor Output Ww 47 47 Speed Steps 5 Steps Sil
146. n 3 AMK X S 10 to 46 Condensation may occur on the indoor unit and drip RK X S 10 to 46 C Indoor temperature 18 to 32 C Indoor humidity 80 max Operation outside this humidity or temperature range may cause a safety device to disable the system 66 System Configuration SiBE12 314 Instruction in case of FTK X S 25 35 BVMB 2 4 AUTO DRY COOL HEAT FAN Operation W AUTO DRY COOL HEAT FAN Operation The air conditioner operates with the operation mode of your choice DAIKIN From the next time on the air conditioner will operate with the same operation mode To start operation 1 Press MODE selector button and select a operation mode Each pressing of the button advances the mode setting in sequence AUTO DRY COOL HEAT FAN gt 6 4 2 Press ON OFF button The OPERATION lamp lights up ON o OO To stop operation 3 Press ON OFF button again Then OPERATION lamp goes off To change the temperature setting 4 Press TEMPERATURE adjustment button DRY or FAN mode AUTO or COOL or HEAT mode Press to raise the temperature and press W to lower the temperature The temperature setting is not variable Set to the temperature you like 10 System Configuration 67 Instruction case of FTK X S 25
147. n t have SPM replace the outdoor unit PCB 112 Service Diagnosis SiBE12 314 Troubleshooting 4 16 Thermistor or Related Abnormality Outdoor Unit Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes 43 46 48 43 9 This type of error is detected by checking the thermistor input voltage to the microcomputer A thermistor error is detected by checking the temperature The thermistor input is above 4 96 V or below 0 04 V with the power on Error 43 is judged if the discharge pipe thermistor temperature is smaller than the condenser thermistor temperature In case of J8 or J8 the system will be shut down when the error is detected at all of operating units Connector in poor contact Thermistor defective Outdoor unit PCB defective Indoor unit PCB defective Condenser thermistor defective in the case of 3 error outdoor unit heat exchanger thermistor in the cooling mode or indoor unit heat exchanger thermistor in the heating mode Service Diagnosis 113 Troubleshooting SiBE12 314 Troubleshooting Check No 6 Refer to P 128 N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn on the power again Error displayed again on remote controller Connector or thermistor YES gt g
148. nd outdoor unit airflow rate are increased 3 15 2 Voltage Detection Function Power supply voltage is detected each time equipment operation starts Function and Control 55 Control Specification SiBE12 314 56 Function and Control SiBE12 314 Part 5 System Configuration 1 System Gontgurellohl ote een nsi i en e dan vata 58 2 Instruction in case of FTK X S 25 35 59 21 Safety Precaut ns nee aee UE et exe ee eb eek 59 2 2 Names ob Pansori ittasan e oie t been fS epe etg 61 2 3 Preparation before 64 2 4 AUTO DRY COOL HEAT FAN 67 2 5 Adjusting the Air Flow Direction 69 2 65 POWERFUL Operation 71 2 7 OUTDOOR UNIT SILENT Operation 2 2 72 28 HOME LEAVE Operation et eee 73 29 INTELLIGENT EYE ret 75 210 TIMER Operation permen tertsen ne 77 2 11 Note Tor Multi SVSIGITI tergrond t tactu 79 2 12 Care and Cleaning sten ternet ed nr S Rip tpi ua REUS 81 2 13 Troubleshooting 84 System Configuration 57 System Configuration SiBE12 314 1 System Configuration After the installation and test operation
149. nd reconnect the harnesses Turn on the power again and get restarted Check No 8 Check the discharge pressure 7 Check the installation condition gt Correct the power supply replace the SPM Replace the outdoor unit PCB R2844 104 Service Diagnosis SiBE12 314 Troubleshooting 4 11 Four Way Valve Abnormality EH Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes The liquid pipe temperature thermistor the outdoor air temperature thermistor and the outdoor unit heat exchanger thermistor are checked to see if they function within their normal ranges in the operating mode A following condition occurs after 3 minutes of the compressor start Cooling dry operation outdoor unit heat exchanger temp liquid pipe temp lt 5 Heating liquid pipe temp outdoor unit heat exchanger temp 0 C Connector in poor contact Thermistor defective Outdoor unit PCB defective Four way valve coil or harness defective Four way valve defective Foreign substance mixed in refrigerant Insufficient gas Service Diagnosis 105 Troubleshooting SiBE12 314 Troubleshooting Check No 5 Refer to P 127 Check No 6 Refer to P 128 Check No 11 Refer to P 131 N Be sure to turn off power switch before connect or disconnect connector Caution or par
150. ndition Even after the error is cancelled and the equipment operates in normal condition the LED indication remains Service Diagnosis 89 Problem Symptoms and Measures SiBE12 314 Symptom Check Item Details of Measure Reference Page None of the Units Check the power supply Check to make sure that the rated voltage is Operates supplied Check the type of the indoor units Check to make sure that the indoor unit type is compatible with the outdoor unit Check the outdoor air temperature Heating operation cannot be used when the outdoor air temperature is 21 C or higher only for heat pump model and cooling operation cannot be used when the outdoor air temperature is below 10 C Diagnosis with remote controller 92 indication Check the remote controller Check to make sure that address settings for addresses the remote 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 Check the outdoor air temperature Heating operation cannot be used when the outdoor air temperature is 21 C or higher only for heat pump model and cooling operation cannot be used when the outdoor air temperature is below 10 C Diagnosis with remote controller 92 indication Equipment operates but Check for wiring and piping errors Conductthe wiring
151. ng Stand by Heating 42 Function and Control SiBE12 314 Control Specification 3 2 Frequency Control Outline Detail Frequency that corresponds to each room s capacity will be determined according to the difference in the temperature of each room and the temperature that is set by the remote controller The function is explained as follows 1 How to determine frequency 2 Frequency command from an indoor unit The difference between a room temperature and the temperature set by the remote controller 3 Frequency command from an indoor unit The ranked capacity of the operating room Frequency initial setting control Frequency changes by PI control lt repeats when frequency becomes lower Command frequency X repeats when frequency becomes lower Each drooping function Upper limit frequency FMAX Input current control etc Limit frequency Each upper limit function Compressor protection function Target frequency Command frequency Skip control Initial frequency Lower limit frequency Each lower limit function control FMIN Four way valve operating compensation etc Defrost control only for heat pump model R1375 How to Determine Frequency The compressor s frequency will finally be determined by taking the following steps For Heat Pump Model 1 Determine command
152. ng the unit with water can cause an electrical shock Be sure to provide the grounding when repairing the equipment in a humid or wet place to avoid electrical shocks Be sure to turn off the power switch and unplug the power cable when cleaning the equipment The internal fan rotates at a high speed and cause injury Do not tilt the unit when removing it The water inside the unit can spill and wet the furniture and floor Be sure to check that the refrigerating cycle section has cooled down sufficiently before conducting repair work Working on the unit when the refrigerating cycle section is hot can cause burns Use the welder in a well ventilated place Using the welder in an enclosed room can cause oxygen deficiency e 1 1 2 Cautions Regarding Products after Repair AN Warning 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 can cause an electrical shock excessive heat generation or fire 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 can fall and cause injury Be sure to install the product correctly by
153. nit Night Quiet Mode Automatic Flexible Voltage Correspondence Outdoor Unit Silent Operation lo High Ceiling Application Tu sz Manual Intelligent Eye cs Chargeless __ 20 Quick Warming Function Power Selection Hot Start Function _ __ Remote 5 Rooms Centralized Controller ol Control Option Automatic Defrosting Remote Control Adaptor Normal Open Pulse Contact O Option Operation Automatic Operation Remote Control Adaptor Normal Open Contact Option Programme Dry Function ol DIII NET Compatible Adaptor ol Option Fan Only O Remote Wireless Lifestyle New Powerful Operation zetje Controller Wired Convenience Non Inverter Inverter Powerful Operation Priority Room Setting Cooling Heating Mode Lock Home Leave Operation Indoor Unit On Off Switch Signal Reception Indicator Temperature Display Another Room Operation Notes Holding Functions Digital Only No Functions List of Functions Cooling Only SiBE12 314 5 m gt s oO oO Category Functions Category Functions og a A qo ox oix lt
154. ntroller 1 Wipe them with dry soft cloth B Front grille 1 Open the front grille Hold the grille by the tabs on the two sides and lift it unitl it stops with a click 2 Remove the front grille Supporting the front grille with one hand release the lock by sliding down the knob with the other hand To remove the front grille pull it toward yourself with both hands 3 Clean the front grille Wipe it with a soft cloth soaked in water Only neutral detergent may be used n case of washing the grille with water dry it with cloth dry it up in the shade after washing 4 Attach the front grille e the keys of the front grille into the slots and push them in all the way Close the front grille slowly and push the grille Fit the key at the 3 points 1 on each side and 1 in the middle e Check to see if the rotating axis the upper center section is moving Slide up the knob into the slot Z CAUTION Don t touch the metal parts of the indoor unit If you touch those parts this may cause an injury When removing or attaching the front grille use a robust and stable stool and watch your steps carefully When removing or attaching the front grille support the grille securely with hand to prevent it from falling
155. nything under the indoor or outdoor unit that must be kept away from moisture In certain conditions moisture in the air may condense and drip After a long use check the unit stand and fittings for damage Donottouch the air inlet and aluminum fins of outdoor unit It may cause injury The appliance is not intended for use by young children or infirm persons without supervision Young children should be supervised to ensure that they do not play with the appliance air conditioner Before cleaning be sure to stop the operation turn the breaker off or pull out the supply cord Do not connect the air conditioner to a power supply different from the one as specified It may cause trou ble or fire Depending on the environment an earth leakage breaker must be installed Lack of an earth leakage breaker may result in electric shocks Arrange the drain hose to ensure smooth drainage Incomplete draining may cause wetting of the building furniture etc To avoid oxygen deficiency ventilate the room sufficiently if equipment with burner is used together with the Q Do not operate the air conditioner with wet hands not wash the indoor unit with excessive water only use slightly wet cloth Do not place things such as vessels containing water or anything else on top of the unit Water may pene trate into the unit and degrade electrical insulations resulting in an electric shock 4 RN
156. ol SiBE12 314 Main Functions 1 3 Fan Speed Control for Indoor Units Control Mode The airflow rate can be automatically controlled depending on the difference between the set temperature and the room temperature This is done through phase control and Hall IC control For more information about Hall IC refer to trouble shooting for fan motor on page 96 Phase Steps Phase control and fan speed control contains 9 steps LLL LL SL L ML M MH H and HH Step Cooling Heating Dry mode LLL Heating thermostat OFF LL Cooling thermostat OFF SL Silent 25 35 kW class ML 500 860 rpm M During powerful operation 850 910 rpm MH H R2818 R2818 HH Powerful Within this range the airflow rate is automatically controlled when the AIRFLOW ADJUSTING button is set to AUTOMATIC n Note 1 During powerful operation fan operate tap 50 90 rpm 2 Fan stops during defrost operation Automatic Air The following drawing explains the principle for fan speed control for heating Flow Control for Thermostat Heating setting Phase control temperature 0 5 C L 15 C ML Difference between room 2 and set temperature M fan speed R2819 Automatic Air The following drawing explains the principle of fan speed control for cooling Flow Control for Cooling 2 C Difference between room ML and set temperature 1 5
157. on cannot be used at the same time Last button that was pressed has priority The operation mode cannot be changed while HOME LEAVE operation is being used When operation is shut off during HOME LEAVE operation using the remote controller or the indoor unit ON OFF switch will remain on the remote controller display 17 74 System Configuration SiBE12 314 Instruction in case of FTK X S 25 35 BVMB 2 9 INTELLIGENT EYE Operation INTELLIGENT EYE Operation INTELLIGENT EYE is the infrared sensor which detects the human movement To start INTELLIGENT EYE operation 1 Press SENSOR button B To cancel the INTELLIGENT EYE operation 2 Press SENSOR button again EX When somebody in room Normal operation When nobody in the room 20 min after start energy saving operation Somebody back in the room Back to normal operation 18 y HOME LEAVE a OONOFF POWERFUL TEMP Y MODE SWING SILENT SENSOR CANCEL 9 1 2 System Configuration 75 Instruction in case of 5 25 35 SiBE12 314 To adjust the angle of the INTELLIGENT EYE sensor You can adjust the angle of the INTELLIGENT EYE sensor to increase the detection area Adjustable angle 15 to right and left of 4029 9 8277 uU INTELLIGENT EYE 15 15 sensor e G
158. on through the position detection circuit W The position detection circuit detects a compressor frequency of below 5 Hz for several tens of seconds W The system will be shut down if the error occurs 16 times W Clearing condition Continuous run for about 5 minutes normal Compressor locked Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Turn off the power Disconnect the harnesses U V and W Y Inverter check Check with the inverter checker li Part No 1225477 NO Normal Correct the power supply or replace the SPM Replace the outdoor unit YES PCB Turn off the power and reconnect the harnesses Turn on the power again and get the system restarted Emergency stop YES without compressor running Replace the compressor System shut down after errors repeated several times NO Check the electronic expansion valve Replace it as required Replace the compressor R2842 m Note If the model doesn t have SPM replace the outdoor unit PCB Service Diagnosis 101 Troubleshooting SiBE12 314 4 9 DC Fan Lock Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Check No 15 Refer to P 133 fan motor related error is
159. onic expansion valve coil m Putty Loosen the screw and remove the four way valve coil Remove the sheet of putty W Before working make sure that the refrigerant is empty in the circuit Heat up four brazed parts of the four way valve and disconnect in a b c d order See the next page also Withdraw the piping side by pliers l R2929 R2931 Provide a protective sheet a steel plate so that the brazing flame cannot influence peripheries Be careful so as not to break pipes by pressing it excessively by pliers when withdrawing it Removal Procedure 153 Outdoor Unit SiBE12 314 Step Procedure Points Warning Ventilate when refrigerant leaks during the work If refrigerant contacts fire it will cause to arise toxic gas Caution Be careful about the four way valve pipes and so on which were heated up by a gas brazing machine so as not to get burnt your hands Cautions for restoration 1 Restore the piping by non oxidation brazing Braze it quickly when no nitrogen gas can be used 2 Itis required to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat For the sake of th
160. r Ground JP11 JP12 ua Be 5V check Jumper S7 JP21 Ee C 56 JA JB JC 526 LL S36 S32 S35 S21 R3057 18 Printed Circuit Board Connector Wiring Diagram SiBE12 314 Printed Circuit Board Connector Wiring Diagram Detail of PCB SW7 PCB 2 BLK FUSEAc250v 3 18 527 VARISTOR AC220 240V 2 az 363 2 084366 1 8 Pm E 57 4 a LOT de Ji Az 26 404 IL LES i ERLA 963 532 TO 2P084366H Printed Circuit Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram SiBE12 314 1 2 Duct Connected Type Name of Connectors 1 S1 on PCB 1 Connector for fan motor 2 S1 on PCB2 Connector for control PCB 3 S7 Connector for fan motor 4 S21 Connector for centralized control 5 S26 Connector for display PCB 6 532 Connector for room temp heat exchanger thermistor Note Other designations 1 V1 Varistor 2 JA ADDRESS SETTING JAMPER JB Fan speed setting when compressor is OFF on thermostat JC Power failure recovery function Refer to page 161 for more detail 3 SW1 OPERATION SWITCH 4 LED1 LED for operation Green 5 LED2 LED for timer Yellow 6 LED3 LED for Home Leave Operations Red S21 2P084366 2H Display PCB PCB 2 Detail LED3 LED2 LED1 2P084375 1A 20 Print
161. r R2598 Gently push and slide the sensor to adjust the angle Aim so that the sensor is pointing to the center of the room or to the part of the room that is most frequently used Moving the sensor to the left Moving the sensor to the right R2599 m After adjusting the angle gently wipe the sensor with a clean cloth being careful not to scratch the sensor Caution Do not hit or violently push the Intelligent eye sensor This can lead to damage and malfunction m Do not place large objects near the sensor Also keep heating units or humidifiers outside the sensor s detection area 162 Others SiBE12 314 Part 9 Appendix Ts Piping DIAG AIS oe 164 1 1 Indoor 0 0 0 00 nnnm nennen nennen 164 1 2 Outdoor Unils nnn veer t tete Sh e teet 166 2 Wiring AGIOS ctc HD 167 2 indoor WANS E 167 2 2 Outdoor Units varens ea a ee veele 169 Appendix 163 Piping Diagrams SiBE12 314 1 Piping Diagrams 1 1 Indoor Units 1 1 1 Wall Mounted Type FTKS25 35BVMB ATKS25 35BVMB FTXS25 35BVMB ATXS25 35BVMB INDOOR UNIT HEAT EXCHANGER 7 0CuT e 6 4CuT D is THERMISTOR 9 ON HEAT EXCH em 54 1 e 6 4CuT SEC CROSS FLOW FAN FIELD PIPING 6 4CuT
162. r replace the SPM Replace the outdoor unit NO 13 Check the power transistor Normal NO gt Replace the SPM Replace the outdoor unit PCB YES Turn off the power and reconnect the harnesses Turn on the power again and get restarted Y Check the supply voltage NO Voltage as rated Correct the power supply Short circuit or breakage between compressor s coil phases YES Replace the compressor Check No 8 Check the discharge pressure Check No 7 Check the installation condition il Note If the model doesn t have SPM replace the outdoor unit PCB R2852 120 Service Diagnosis SiBE12 314 Troubleshooting 4 20 Insufficient Gas Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Hin Gas shortage detection gas shortage is detected checking the power consumption value and the compressor running frequency Gas shortage detection II A gas shortage is detected by checking the difference between indoor unit heat exchanger temperature and room temperature as well as the difference between outdoor unit heat exchanger temperature and room temperature Gas shortage detection Power consumption lt 1862 256 A Hz x Compressor running frequency 18 However when the status of running fr
163. r Signal Electronic Expansion Valve Check 126 Transmission Circuit Abnormality 125 Electronic Expansion Valve Control 50 Output Over Current Detection 119 Over voltage Detection 123 F Fan Motor AC Motor or Related Abnormality 96 P Fiter RCB o tps tn add 23 Piping Diagrams 164 Four Way Valve Abnormality quM 105 Indoor Units 2 00 164 Four Way Valve Performance Check 127 Outdoor Units 166 Freeze up Protection Control 47 Position Sensor Abnormality 110 Freeze up Protection Control Power Supply DE 22 or High Pressure Control 94 Power Transistor Check 132 Frequency Control icto 43 Programme Dry Function 30 Frequency Principle 26 Function of Thermistor R Cooling Only Model 41 Radiation Fin Temperature Rise 117 Heat Pump Model 39 5 H Signal Receiver 22 Hall IC Check erena 133 Heating Peak cut Control 47 T
164. r to page 45 High W Input current control Refer to page 46 W Compressor protection function Refer to page 45 W Heating peak cut control Refer to page 47 W Freeze up protection control Refer to page 47 W Defrost control Refer to page 49 Forced Cooling Operation For more information refer to Forced operation mode on page 55 Function and Control 27 Main Functions SiBE12 314 1 2 Power Airflow Dual Flaps Wide Angle Louvers and Auto Swing Power Airflow The large flaps send a large volume of air downwards to the floor The flap provides an optimum Dual Flaps control area in cooling heating and dry mode Heating Mode During heating mode the large flap enables direct warm air straight downwards The flap presses the warm air above the floor to reach the entire room Cooling Mode During cooling mode the flap retracts into the indoor unit Then cool air can be blown far and pervaded all over the room Wide Angle The louvres made of elastic synthetic resin provide a wide range of airflow that guarantees a Louvres comfortable air distribution Auto Swing The following table explains the auto swing process for heating cooling dry and fan Wall Mounted Type Vertical Swing up and down ri Cooling Dry Fan Heating Heating Cooling 2 2 A 25 25 45 20 45 R2946 R2947 R2817 28 Function and Contr
165. ration lo High Ceiling Application zm Manual Intelligent Eye Chargeless __ 20 Quick Warming Function Power Selection Hot Start Function __ __ Remote 5 Rooms Centralized Controller Control Option Automatic Defrosting Remote Control Adaptor Normal Open Pulse Contact O Option Operation Automatic Operation MESH REM Remote Control Adaptor ol Normal Open Contact Option Programme Dry Function ol DIII NET Compatible Adaptor ol Option Fan Only Remote Wireless Lifestyle New Powerful Operation Controller Wired Convenience Non Inverter Inverter Powerful Operation Priority Room Setting Cooling Heating Mode Lock Home Leave Operation Indoor Unit On Off Switch Signal Reception Indicator Another Room Operation Notes Holding Functions Digital Only No Functions List of Functions SiBE12 314 Heat Pump 2 Heat Pump 5 2 2 8 Category Functions 2 Category Functions 9 Lo als Basic Inverter olo Health amp Air Purifying Filter with Bacteriostatic ol Function with Inverter Power Control Clean amp Virus
166. rom the partition blanket side outer plate R2920 6 Remove the sound Since the piping ports on the blanket top sound blanket are torn easily remove the blanket carefully R2921 150 Removal Procedure SiBE12 314 Outdoor Unit Step Procedure Points 7 Remove the sound blanket side inner A Remove the sound blanket side inner B Remove the sound blanket bottom R2922 R2924 Removal Procedure 151 Outdoor Unit SiBE12 314 1 5 Removal of the Thermistor Procedure Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Disconnect the discharge pipe thermistor 2 Disconnect the gas and m Mind that not to lose the clips liquid pipe thermistor for thermistors R2927 3 Disconnect the heat exchanger thermistor R2928 152 Removal Procedure SiBE12 314 Outdoor Unit 1 66 Removal of the Four Way Valve Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the peripheries Remove the followings So as not to be burned by a gas brazing machine W Four way valve coil W Electr
167. rts damage may be occurred Connector connection check note Is it normal YES gt Correct connections Connector Nos vary depending on models gt Replace PCBs Model Type Connector No Wall Mounted Type Terminal strip Control Duct Connected Type Terminal strip Control PCB Floor Ceiling Suspended Dual Type 537 Service Diagnosis 93 Troubleshooting SiBE12 314 4 3 Freeze up Protection Control or High Pressure Control Remote AS Coniroller Display Method of High pressure control heat pump model only Malfunction During heating operations the temperature detected by the indoor heat exchanger Detection thermistor is used for the high pressure control stop outdoor fan stop etc W The freeze up protection control operation halt is activated during cooling operation according to the temperature detected by the indoor unit heat exchanger thermistor Malfunction High pressure control Decision During heating operations the temperature detected by the indoor heat exchanger Conditions thermistor is above 65 C W Freeze up protection When the indoor unit heat exchanger temperature is below 0 C during cooling operation Operation halt due to clogged air filter of the indoor unit Operation halt due to dust accumulation on the indoor unit heat exchanger Operation halt due to short circuit Detection error d
168. s m When two indoor units are installed in one room the two wireless remote controllers can be set for different addresses PCB in the indoor unit m Remove the front panel Remove the sensor parts cover 2 screws then remove the electric parts box 1 screw W Slide the metallic cover to remove it 4 claws on the electric parts box W Cutthe jumper JA on PCB Wireless remote controller in case of wall mounted type m Cutthe jumper J4 Wireless remote controller EXIST CUT 1 2 2 Jumper Setting E gt ES ADDRESS JA EXIST CUT 2 Claws 4 points Electric parts box R2587 Jumper On indoor PC Board Function When connected factory set When cut JC Power failure recovery function Auto start Unit does not resume operation after recovering from a power failure Timer ON OFF settings are cleared JB Fan speed setting when compressor is OFF on thermostat Fan speed setting Remote controller setting Fan rpm is set to 0 lt Fan stop gt Others 161 Others SiBE12 314 1 2 3 Adjusting the Angle of the Intelligent Eye Sensor Once installation of the indoor unit is complete adjust the angle of the Intelligent eye sensor to ensure the detection area properly covers the room Adjustable angle 15 to right and left of center cue Intelligent eye 15 15 senso
169. s the unit forcibly to either Cooling or Heating Mode This function is convenient when you wish to set all indoor units connected to the Multi system to the same operation mode Living room 22 System Configuration 79 Instruction in case of 5 25 35 SiBE12 314 Priority Room Setting The Priority Room Setting requires initial programming during installation Please consult your retailer or dealer for assistance The room designated as the Priority Room takes priority in the following situations 1 Operation Mode Priority As the operation mode of the Priority Room takes precedence the user can select a different operation mode from other rooms Example Room A is the Priority Room in the examples When COOL mode is selected in Room A while operating the following modes in Room B C and D Operation mode in Room B C and D Status of Room B C and D when the unit in Room A is in COOL mode COOL or DRY or FAN Current operation mode maintained The unit enters Standby Mode Operation resumes when the HEAT Room A unit stops operating If the unit is set to COOL mode operation continues If set to AUTO HEAT mode it enters Standby Mode Operation resumes when the Room A unit stops operating 2 Priority when POWERFUL operation is used Example Room A is the Priority Room in the examples The indoor units in Rooms A B C and D are all operating If the unit in Room A enters
170. t disconnected Check No 6 Check the thermistor resistance value Replace defective one s of NO YES Check No 6 Check the indoor unit heat exchanger thermistor resistance value in the heating mode Indoor unit NO the following thermistors Radiation fin thermistor Discharge pipe temperature thermistor Outdoor unit heat exchanger temperature thermistor Liquid pipe temperature thermistor Gas pipe temperature thermistor Outdoor air temperature thermistor heat exchanger thermistor functioning Replace the following thermistor Indoor unit heat exchanger thermistor PY Radiation fin thermistor 43 Discharge pipe temperature thermistor J6 Outdoor unit heat exchanger temperature thermistor uB 49 HS Liquid pipe temperature thermistor Gas pipe temperature thermistor Outdoor air temperature thermistor gt Replace the outdoor unit PCB Replace the indoor unit PCB ENS 114 Service Diagnosis SiBE12 314 Troubleshooting 4 17 Electrical Box Temperature Rise Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes L3 An electrical box temperature rise is detected by checking the radiation fin thermistor with the compressor off With the compressor off the radiation fin temperature is above 80 C Reset is made
171. t W Total current A hert ingoor unit A room B room Rating min max Rating min max Rating min max Rating 2 5 2 50 2 50 1 20 3 00 755 340 1020 3 5 1 9 4 7 94 3 5 3 15 mE 3 15 1 20 3 60 1120 340 1440 5 1 1 9 6 5 95 2 542 5 1 95 1 95 3 90 1 50 4 20 1215 400 1490 5 6 2 2 6 8 94 2 5 3 5 1 75 2 15 m 3 90 1 50 4 20 1215 400 1490 5 6 2 2 6 8 94 Specifications 15 SiBE12 314 Heating 230V 50Hz Combination of Each capacity kW Total capacity KW Total input W Total current A di Indoor un A room Rating min max Rating min max Rating min max Rating 2 5 3 40 3 40 1 20 4 10 1135 380 1600 5 2 2 1 7 5 95 3 5 3 80 mi 3 80 1 20 4 40 1350 380 1850 6 2 2 1 8 6 95 2 542 5 2 20 2 20 mu 4 40 1 50 4 70 1190 340 1420 5 4 1 8 6 6 96 2 5 3 5 2 05 2 35 m 4 40 1 50 4 70 1190 340 1420 5 4 1 8 6 6 96 Notes 1 Cooling capacity is based on 27 CDB 19 CWB Indoor temperature 35 CDB Outdoor temperature Heating capacity is based on 20 CDB Indoor temperature 7 CDB 6 CWB Outdoor temperature 2 Itis impossible to connect the indoor unit for one room only 3D040483 1 16 Specifications SiBE12 314 Part 3 Printed Circuit Board Connector Wiring Diagram 1 Printed Circuit Board Connector Wir
172. t output determined from indoor unit volume air flow rate and other factors PI Control Determine Frequency Up Down by AD Signal 1 P control Calculate a total of the AD value in each sampling time 20 seconds and adjust the frequency according to its difference from the frequency previously calculated 2 control If the operating frequency is not change more than a certain fixed time adjust the frequency up and down according to the XAD value obtaining the fixed XAD value When the ZAD value is small lower the frequency When the AD value is large increase the frequency 3 Limit of frequency variation width When the difference between input current and input current drooping value is less than 1 5 A the frequency increase width must be limited 4 Frequency management when other controls are functioning When each frequency is drooping Frequency management is carried out only when the frequency droops m For limiting lower limit Frequency management is carried out only when the frequency rises Upper and lower limit of frequency by PI control The frequency upper and lower limits are set depending on the total of S values of operating room When low noise commands come from the indoor unit more than one room or when outdoor unit low noise or quiet commands come from all the rooms the upper limit frequency must be lowered than the usual setting 44 Function and Control SiBE12 314 Control Specification 3 3
173. t to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas discharges during the repair work do not touch the discharging refrigerant gas The refrigerant gas can cause frostbite When disconnecting the suction or discharge pipe of the compressor at the welded section release 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 can cause injury If the refrigerant gas leaks during the repair work ventilate the area The refrigerant gas can generate toxic gases when it contacts flames The step up capacitor supplies high voltage electricity to the electrical components of the outdoor unit Be sure to discharge the capacitor completely before conducting repair work A charged capacitor can cause an electrical shock 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 can cause an electrical shock or fire DA Introduction SiBE12 314 AN Caution Do not repair the electrical components with wet hands Working on the equipment with wet hands can cause an electrical shock Do not clean the air conditioner by splashing water Washi
174. taining the temperature as much as possible It automatically controls temperature and fan strength so manual adjust ment of these functions is unavailable Note on AUTO operation n AUTO operation the system selects an appropriate operation mode COOL or HEAT based on the room temperature at the start of the operation The system automatically reselects setting at a regular interval to bring the room temperature to user setting level f you do not like AUTO operation you can manually select the operation mode and setting you like Note on air flow rate setting At smaller air flow rates the cooling heating effect is also smaller 11 68 System Configuration SiBE12 314 Instruction in case of FTK X S 25 35 BVMB 2 5 Adjusting the Air Flow Direction y Adjusting the Air Flow Direction You can adjust the air flow direction to increase your com fort To adjust the horizontal blades flaps 1 Press SWING button The display will light up and the flaps will begin to swing 2 When the flaps have reached the desired position press SWING button once more The display will go blank The flaps will stop moving 12 CANCEL S TIMER 1 2 System Configuration 69 Instruction case of FTK X S 25 35 BVMB SiBE12 314 To adjust the vertical blades louvers Hold the knob and move the louvers You will find a knob on the le
175. tallation frame properly If the packing and seal are not installed properly water can enter the room and wet the furniture and floor For integral units only 1 1 3 Inspection after Repair AN Warning Check to make sure that the power cable plug is not dirty or loose then insert the plug into a power outlet all the way If the plug has dust or loose connection it can cause an electrical shock or fire If the power cable and lead wires have scratches or deteriorated be sure to replace them Damaged cable and wires can cause an electrical shock excessive heat generation or fire vii Introduction SiBE12 314 A Warning Do not use a joined power cable or extension cable or share the same power outlet with other electrical appliances since it can cause an electrical shock excessive heat generation or fire IN Caution 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 can cause excessive heat generation fire or an electrical shock If the installation platform or frame has corroded replace it Corroded installation platform or frame can cause the unit to fall resulting in injury Check the grounding and repair it if the equipment is not properly grounded Improper grounding can cause an electrical shock Be sure to measure
176. tatic Functions Operation Limit for Cooling C Photocatalytic Deodorizing Filter Operation Limit for Heating MURS Air Purifying Filter with Photocatalytic Deodorizing Function PAM Control Longlife Filter Compressor Oval Scroll Compressor Ultra Longlife Filter Option Swing Compressor Proof Air Filter 1 Rotary Compressor SS Wipe clean Flat Panel Reluctance DC Motor oad Washable Grille Comfortable Airflow Flap Filter Cleaning Indicator Airflow Power Airflow Dual Flaps Good Sleep Cooling Operation Power Airflow Diffuser Timer 24 Hour On Off Timer OJO Wide Angle Louvers Night Set Mode OJO Vertical Auto Swing Up and Down Worry Free Auto Restart after Power Failure OJO Horizontal Auto Swing al en Durability amp Self Diagnosis Digital LED Display Right and Left Ox Ox 3 D Airflow 3 Step Airflow H P Only Wiring Error Check SoS Comfort Auto Fan Speed olo Anticorrosion Treatment of Outdoor Control Heat Exchanger Indoor Unit Silent Operation olo Flexibility Multi Split Split Type Compatible ol Indoor Unit Night Quiet Mode Automatic Flexible Voltage Correspondence Outdoor Unit Silent Operation VM High Ceiling Application Manual Intelligent Eye Chargeless Quick Warming Function Power
177. temperature and the electronic expansion valve is fully open 450 pulses more than the specified time it is considered as an insufficient gas Insufficient gas zone Power consumption 61Hz Frequency R3037 With the conventional function a power consumption is weak comparing with that in the normal operation when gas is insufficient and gas insufficiency is detected by checking a power consumption Gas insufficient zone R1391 When operating with insufficient gas although the rise of discharge pipe temperature is great and the electronic expansion valve is open it is presumed as an insufficient gas if the discharge pipe temperature is higher than the target discharge pipe temperature Judgment by Input Current When an output frequency is exceeds 61 Hz and the input current is less than specified value the adjustment is made for insufficient gas Judgment by Discharge Pipe Temperature When discharge pipe temperature is 20 C higher than target value and the electronic expansion value opening is 450 plus max the adjustment is made for insufficient gas 54 Function and Control SiBE12 314 Control Specification 3 13 Preventing Indoor Freezing During cooling if the heat exchanger temperature in the operation stopped room becomes below the specified temperature for the specified time open the electronic expansion valve in the operation stopped room as specified and carry out the fully closed operat
178. the insulation resistance after the repair and make sure that the resistance is 1 Mohm or higher Faulty insulation can cause an electrical shock Be sure to check the drainage of the indoor unit after the repair Faulty drainage can cause the water to enter the room and wet the furniture and floor 1 1 4 Using Icons Icons are used to attract the attention of the reader to specific information The meaning of each icon is described in the table below 1 1 5 Using Icons List Icon Type of Description Information Note A note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Note Caution A caution is used when there is danger that the reader through incorrect manipulation may damage equipment loose data get Caution an unexpected result or has to restart part of a procedure IN Warning Warning A warning is used when there is danger of personal injury specific topic Reference reference guides the reader to other places in this binder or in this manual where he she will find additional information on a viii SiBE12 314 Part 1 List of Functions 1910 fale ONY eet 2 eeb RN 5 List of Functions 1
179. tion manual 8 N 811 8 862 20A 250V 510 2 Gps GRN YLW yes de m SAI vat g co 3P101648 1B Printed Circuit Board Connector Wiring Diagram 23 Printed Circuit Board Connector Wiring Diagram SiBE12 314 Control PCB PCB 2 Detail HR4 2 ja df 4 pm HL2 025 4 923 ce IM 85 5 LED A 591 590 1 7020 ex ca v FU2 S30 2P101647 1C 24 Printed Circuit Board Connector Wiring Diagram SiBE04 314 Part 4 Function and Control T Main tert benede 26 Lal Frequency Princlple reir ba ei DR rl hee 26 1 2 Power Airflow Dual Flaps Wide Angle Louvers and Auto Swing 28 1 3 Fan Speed Control for Indoor 29 1 4 Programme Dry Function ssa se eender en ed tp cce ide 30 1 5 Automatic e RR NUR 31 1 6 Night Set Mode ne e e ro ta tee M net aaneen tae 32 tek Intelligent Eye eC ET 33 1 8 Home Leave Operation nerven 35 1 9 Inverter Powerful Operation Rate 36 10 Other amp scena eom e uto eas ue SET 37 2 Function of Main Structural 38 2 1 Main Structural Pans senteerd 38 2 2 Function O
180. to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred 99 Check No 13 Check for short circuit gt Replace the outdoor unit PCB YES Check the electrolytic capacitor voltage DC290 380V Replace the outdoor unit PCB Electricals NO compressor harnesses ifi connected as gt Reconnect as specified specified y YES Turn off the power Disconnect the harnesses U V and W Y Inverter checker Check with the inverter checker Part No 1225477 YES Correct the power supply or replace the outdoor unit PCB NO Replace the compressor R3041 110 Service Diagnosis SiBE12 314 Troubleshooting 4 15 CT or Related Abnormality Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes A CT or related error is detected by checking the compressor running frequency and CT detected input current The compressor running frequency is above 68 Hz and the CT input is below 0 1 V The input current is also below 1 25 A f this error repeats 4 times the system will be shut down W The error counter will reset itself if this or any other error does not occur during the following 60 minute compressor running time total time Power transistor defe
181. ts damage may be occurred YES Four way valve coil Correct disconnected loose YES gt Reconnect Harness out of connector Check the continuity of the four way valve coil and harness harness from NO the connector Replace the four way valve Resistance between harnesses about 0 5 YES 5 Malfunctioning Coil Check the four way valve switching output Functioning YES Replace the outdoor unit PCB Any thermistor disconnected TNO Check No 6 Malfunctioning gt Reconnect in position Replace a defective Check the thermistors Functioning Check No 11 Malfunctioning thermistor gt Refer to the refrigerant line Check the refrigerant line Insufficient gas Water mixed Functioning Stop valve defective check procedure gt Replace the four way valve defective or dust clogged R3040 106 Service Diagnosis SiBE12 314 Troubleshooting 4 12 Discharge Pipe Temperature Control Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Check No 4 Refer to P 126 Check No 6 Refer to P 128 Check No 11 Refer to P 131 F3 The discharge pipe temperature control stop frequency drooping etc is check
182. ture of no operation unit WFlow noise of refrigerant in the no operation unit WOperation due to anti icing function almost same as the Heating most outside air temperature unit does not heat Refrigerant flow rate vary by unit Discharge air temperatures are different by NO room Replace the EVn of the room mPeak cut R1431 2 Valve body catches at complete close Reset power supply and conduct cooling position operation unit by unit Symptom Cooling BT he only unit having problem does not cool the Chock room mWhen the only faulty unit is in operation the unit makes pump down The low pressure of the unit becomes vacuum is activated WAbnormal discharge pipe temperature Does the pressure become into vacuum zone NO Heating Replace the EVn of the room Insufficient gas due to liquid refrigerant stagnation inside the faulty indoor unit R1432 Only for heat pump model The unit does not heat the room is activated WAbnormal discharge pipe temperature 3 Valve does not open fully Check the number of rotation of shaft if itis 5 and Symptom half from full open to complete close using unit does not cool nor heat only for heat manual coil for electronic expansion valve When pump model the number of rotation of shaft is less than the is actuated above value the
183. ture Cooling tap 80 rpm 18 Dry rotating speed Normally targeted 50 rpm temperature in dry operation Approx 2 C Heating tap 80 rpm 30 tap 80 rpm Automatic Same as cooling The target is kept heating in Powerful unchanged operation Ex Powerful operation in cooling mode Target temp r 7 PSE nn nn nnn Set temp 18 Powerful Powerful OFF Fan Ending condition or in 1 to 3 i 80rpm 1 TPF ends 1 2 Stop H tap 1 3 Powerful operation is OFF 1 1 Set tap 1 R2823 36 Function and Control SiBE12 314 Main Functions 1 10 Other Functions 1 10 1 Hot Start Function Heat Pump Only In order to prevent the cold air blast that normally comes when heating is started the temperature of the heat exchanger of the indoor unit is detected and either the air flow is stopped or is made very weak thereby carrying out comfortable heating of the room cold air blast is also prevented using a similar control when the defrosting operation is started or when the thermostat gets turned ON 1 10 2 Signal Receiving Sign When the indoor unit receives a signal from the remote controller the unit emits a signal receiving sound 1 10 3 ON OFF Button on Indoor Unit An ON OFF switch is provided on the front panel of the unit Use this switch when the remote controller
184. ue to faulty indoor unit heat exchanger thermistor Detection error due to faulty indoor unit PCB Supposed Causes 94 Service Diagnosis SiBE12 314 Troubleshooting Troubleshooting Check No 6 Refer to P 128 N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check the air passage Is there any YES short circuit gt Provide sufficient air passage NO Check the intake air filter YES gt Clean the air filter NO Check the dust accumulation on the indoor unit heat exchanger YES gt Clean the heat exchanger Check No 6 Indoor unit heat exchanger thermistor check Does it conform to YES the thermistor characteristic chart Replace the indoor unit gt Replace the thermistor replace the indoor unit PCB R1401 Note If the outdoor air temperature is below 10 C in the cooling mode the system may get interrupted with error A5 displayed The system will be reset itself but this stop will be put in the error history memory Service Diagnosis 95 Troubleshooting SiBE12 314 4 4 Fan Motor AC Motor or Related Abnormality Remote Controller Display Method of Malfunction Detection Malfunction Decision Conditions Supposed Causes Troubleshooting Check No 16 Refer to P 133 Ab The rotat
185. ulse Contact Operation Automatic Operation ol Remote Control Adaptor ol Normal Open Contact Option Programme Dry Function Gal Compatible Adaptor ol Option Fan Only O Remote Wireless Lifestyle New Powerful Operation Controller Wired Convenience Non Inverter Inverter Powerful Operation Priority Room Setting Cooling Heating Made Lock Home Leave Operation Indoor Unit On Off Switch Signal Reception Indicator Temperature Display Another Room Operation Notes Holding Functions Digital Only No Functions List of Functions SiBE12 314 Heat Pump gt 2 gt gt Q Category Functions Category Functions 91 e JE lt 4 lt Inverter olo Health amp Air Purifying Filter with Bacteriostatic ol Function with Inverter Power Control Clean amp Virustatic Functions Operation Limit for Cooling C __ 19 Photocatalytic Deodorizing Filter 46 Operation Limit for Heating 10 Air Purifying Filter with 155 Photocatalytic Deodorizing Function PAM Control Longlife
186. unctioning Check No 11 Malfunctioning Check the refrigerant line gt Refer to the refrigerant line Refrigerant shortage check procedure Four way valve malfunctioning Functionin Water mixed Stop valve defective Replace the outdoor unit 2846 Service Diagnosis 107 Troubleshooting SiBE12 314 4 13 High Pressure Control in Cooling Remote Fb Controller Display Method of High pressure control stop frequency drop etc is activated in the cooling mode if the Malfunction temperature being sensed by the heat exchanger thermistor exceeds the limit Detection Malfunction Activated when the temperature being sensed by the heat exchanger thermistor rises above Decision 54 Deactivated when the said temperature drops below 52 Conditions Supposed W The installation space is not large enough Causes m Faulty outdoor unit fan Faulty electronic expansion valve m Faulty outdoor unit heat exchanger thermistor Faulty outdoor unit Faulty stop valve W Dirty heat exchanger 108 Service Diagnosis SiBE12 314 Troubleshooting Troubleshooting Check No 4 Refer to P 126 Check No 6 Refer to P 128 Check No 7 Refer to P 129 Check No 9 Refer to P 130 N Be sure to turn off power switch before connect or disconnect connector Caution or parts damage may be occurred Check the installation space
187. unctions but does return it means the capacitor malfunction Q0367 132 Service Diagnosis SiBE12 314 Check 5 1 11 Turning Speed Pulse Input on the Outdoor Unit PCB Check Check No 15 Propeller fan motor Make sure the voltage of 290 380V is being applied 1 Stop the operation first and then the power off and disconnect the connector S70 2 Make sure there is about DC 280 V between pins 4 and 7 3 With the system and the power still off reconnect the connector S70 4 Make a turn of the fan motor with a hand and make sure the pulse 0 15 V appears twice at pins 1 and 4 If the fuse is blown out the outdoor unit fan may also be in trouble Check the fan too If the voltage in Step 2 is not applied it means the PCB is defective Replace the PCB If the pulse in Step 4 is not available it means the Hall IC is defective Replace the DC fan motor If there are both the voltage 2 and the pulse 4 replace the PCB gt Fan motor power supply voltage 310 340 O L gt Fan motor control voltage DC15V Of Turning speed control voltage DC 6 5V OF Turning speed pulse input Propeller fan motor S70 5 1 12 Hall IC Check 7 6 5 4 gt P 0V reference of electric potential 3 2 1 R3052 Check No 16 1 Check the connector connection 2 With the power ON operation OFF and the connector connected check th
188. ut when the operation is stopped 3 End of Function The function ends when the HOME LEAVE button is pressed again during HOME LEAVE operation or when the powerful operation button is pressed Scene cooling m 2 f Y leave Re temp Home leave operation Set temp Normal operation Normal operation Time Start Be operation Stop Home bave operation R1366 Scene Heating aj wm m 25 T P vum men 6 leave Do AN mE eee Ll Home leave operation Normal operation Normal operation Time Start Home leave operation Stop Home leave operation R1367 Others The set temperature and set air volume are memorized in the remote controller When the remote controller is reset due to replacement of battery it is necessary to set the temperature and air volume again for HOME LEAVE Function and Control 35 Main Functions SiBE12 314 1 9 Inverter Powerful Operation Outline In order to exploit the cooling and heating capacity to full extent operate the air conditioner by increasing the indoor fan rotating speed and the compressor frequency Details of the When Powerful button is pushed in each operation mode the fan speed setting temperature Control will be converted to the following states in a period of twenty minutes Operation mode Fan speed Target set tempera
189. when the temperature drops below 70 C Fin temperature rise due to defective outdoor unit fan Fin temperature rise due to short circuit Fin thermistor defective Connector in poor contact Outdoor unit PCB defective Service Diagnosis 115 Troubleshooting SiBE12 314 Troubleshooting Check No 6 Refer to P 128 Check No 7 Refer to P 129 Check No 9 Refer to P 130 Caution Turn off the power and turn it on again Error again or outdoor unit fan activated NO Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred WARNING hi To cool down the electricals the outdoor unit fan gets started when the radiation fin temperature rises above 75 C and stops itself when it drops below 70 YES Check No 6 N Check the thermistor resistance value Fin thermistor Check the radiation fin temperature Thermistor as specified in its characteristic chart NO Replace the fin thermistor Replace the outdoor unit PCB Above 80 C Check No 9 Check the outdoor unit fan or related Functioning Radiation fin dirty Slightly dirty Malfunctioning Too dirty Replace the fan motor Correct the connectors and fan motor leads Replace the outdoor unit PCB heck 7 heck the installation condition gt Cle
190. xpansion valve so that the temperature difference between the maximum heat exchanger temperature of connected room and the temperature of liquid pipe thermistor becomes constant Function and Control 53 Control Specification SiBE12 314 3 12 Malfunctions 3 12 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 Fin thermistor Gas pipe thermistor Outdoor air thermistor Liquid pipe thermistor Relating to CT Malfunction When the output frequency is more than 68 Hz and the input current is less than 1 25A carry out abnormal adjustment DARN 3 12 2 Detection of Overload and Over Current Outline Detail In order to protect the inverter detect an excessive output current and for protecting compressor monitor the OL operation If the OL compressor head temperature exceeds 120 130 C depending the model the compressor gets interrupted BM If the inverter current exceeds 22 A the compressor gets interrupted too 3 12 3 Insufficient Gas Control Outline Detail If a power consumption is below the specified value in which the frequency is higher than the specified frequency it must be regarded as gas insufficient In addition to such conventional function if the discharge temperature is higher than the target discharge pipe
191. y the set temperature is shifted by 1 C 34 Function and Control SiBE12 314 Main Functions 1 8 Home Leave Operation Outline In order to respond to the customer s need for immediate heating and cooling of the room after returning home or for house care a measure to switch the temperature and air volume from that for normal time over to outing time by one touch is provided This function responds also to the need for keeping up with weak cooling or heating This time we seek for simplicity of operation by providing the special temperature and air volume control for outing to be set by the exclusive button Detail of the 1 Start of Function Control The function starts when the HOME LEAVE button is pressed in cooling mode or heating mode including stopping and powerful operation If this button is pressed while the operation is stopped the function becomes effective when the operation is started If this button is pressed in powerful operation the powerful operation is reset and this function becomes effective m The HOME LEAVE button is ineffective in dry mode and fan mode 2 Details of Function A mark representing HOME LEAVE is indicated on the liquid crystal display of the remote controller The indoor unit is operated according to the set temperature and air volume for HOME LEAVE which were pre set in the memory of the remote controller The LED Red of indoor unit representing HOME LEAVE lights up It goes o
192. ze the cooling heating effect the capacity of outdoor unit must be increased and the air flow rate be fixed to the maximum setting The temperature and air flow settings are not variable In DRY mode The temperature setting is lowered by 2 5 C and the air flow rate is slightly increased In FAN mode The air flow rate is fixed to the maximum setting When using priority room setting See Note for multi system page 22 14 System Configuration 71 Instruction in case of FTK X S 25 35 SiBE12 314 2 7 OUTDOOR UNIT SILENT Operation W OUTDOOR UNIT SILENT Operation OUTDOOR UNIT SILENT operation lowers the noise level of the outdoor unit by changing the frequency and fan speed on the outdoor unit This function is conve nient during night To start OUTDOOR UNIT SILENT operation 1 Press SILENT button To cancel OUTDOOR UNIT SILENT operation 2 Press SILENT button again HOME LEAVE POWERFUL MODE FAN SWING SILENT SENSOR 29 Ca 1 2 NOTE Note on OUTDOOR UNIT SILENT operation f using a multi system this function will work only when the OUTDOOR UNIT SILENT operation is set on all operated indoor units However if using priority room setting see Note for multi system page 22 This function is available in COOL HEAT and AUTO modes This is not available in FAN and DRY mode POWERFUL operation OUTDOOR UNIT SILENT op
193. zone the frequency limit will remain In the return reset zone the frequency limit will be cancelled Limitation of current drooping and stop value according to the outdoor air temperature 1 In case the operation mode is cooling The current droops when outdoor air temperature becomes higher than a certain level model by model 2 In case the operation mode is heating only for heat pump model The current droops when outdoor air temperature becomes higher than a certain level model by model 46 Function and Control SiBE12 314 Control Specification 3 6 Freeze up Protection Control During cooling operation the signals being sent from the indoor unit allow the operating Outline frequency limitation and then prevent freezing of the indoor heat exchanger The signal from the indoor unit must be divided into the zones as the followings Detail Conditions for Start Controlling Judge the controlling start with the indoor heat exchanger temperature after 2 sec from operation start and after 30 sec from changing number of operation room Control in Each Zone Heat exchanger thermistor temperature Return Reset zone Up zone Unchanged zone Drooping zone Stop zone E R1379 3 7 Heating Peak cut Control Outline Heat Pump Only During heating operation the signals being sent from the indoor unit allow the operating frequency limitation and prevent abnormal high pressure The signal fro

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