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69

F DEF HEATER &

F DRAIN HEATER

R DEF HEATER &

R DRAIN HEATER &

ICE WATER PIPE HEATER

DISPENSER HEATER

AC 220V

INVERTER

PCB

AC INPUT

POWER CORD

AC 240V/50Hz

COMP SIGNAL

POWER SUPPLY

12V / 5V

COMP CTL

POWER CTL

DOOR CTL

DRIVING PART CTL

AD CONVERT CTL

SENSOR DETECTION

CIRCUIT

DOOR S/W

DETECTION CIRCUIT

DIODE OPTION

BUZZER CIRCUIT

EEPROM

RESET CIRCUIT

OSCILLATOR 

CIRCUIT

INVERTER 

COMP

DRIVING 

PART

CTL 

CIRCUIT

※

AC Load is in italic.

MAIN PCB

OLP

ICE WATER SOL-VALVE

WATER SOL-VALVE

DISPENSER LAMP

WATER TANK HEATER

COMPRESSOR COOL FAN

F ROOM FAN

R ROOM FAN

COVER ICE GEARED MOTOR

F ROOM LAMP

R ROOM LAMP

AUGER MOTOR

CUBE SOL-VALVE

CONVERTIBLE ROOM FAN

DAMPER MOTOR

STEP MOTOR

DRIVING PART

F ROOM FAN

R ROOM SENSOR

F DEF SENSOR

R DEF SENSOR

AMIBIENT SENSOR

CONVERTIBLE SENSOR

SENSOR

LCD

CONTROLER

DISPLAY CTL

CIRCUIT (LCD)

ICE MAKER CTL 

TEST MODE CTL

NORMAL MODE CTL

STATUS CTL

EEPROM CTL

BUZZER CTL

UART COMM CTL

DISPLAY MODE CTL

KEY CTL

MICOM

COMM PART

KEY CTL

BUZZER CTL

KEY INPUT

PANEL PCB

KEY CTL

LED DRIVE

CONVERTIBLE PCB

F DOOR SWITCH

R DOOR SWITCH

DISPENSER SWITCH

DOOR SWITCH

8

BLOCK DIAGRAM

BRANDSOURCE-SM(EN) 

 

2007.1.23 

10:32 

AM 

 

페이지87

Summary of Contents for RF48SS

Page 1: ...THE DCS REFRIGERATOR SERVICE MANUAL MODEL RF48SS ...

Page 2: ...sert the power plug with wet hands You may receive an electric shock Do not put a container filled with water on the refrigerator If spilled there is a risk of fire or electric shock Do not install the refrigerator in a damp place or a place where it may come in contact with water Deteriorated insulation of electrical parts may cause an electric shock or fire Do not store volatile or flammable sub...

Page 3: ...that none of the pipes on the back of the appliance are damaged prior to disposal Do not use a wet or damp cloth when cleaning the plug Remove any foreign matter or dust from the power plug pins Otherwise there is a risk of fire If the refrigerator is disconnected from the power supply you should wait for at least five minutes before plugging it back When there is thunder or lightening or when the...

Page 4: ...nt leakage from the refrigerator Never use gas pipes telephone lines or other potential lightening rods as ground Improper use of the ground plug can result in electric shock It must have the following advice Please dispose of the packaging material for this product in an environmentally friendly manner Please contact your local authorities in regard to the environmentally safe disposal of this pr...

Page 5: ...Min 84 3 Max Please check the followings before installing the product Checkiftheproductcanclearthedoorsonitswaytotheinstallationplace Iftheproductisnotabletoclearthedoors itisnotpossibletoinstalltheproduct Please check if there is enough space to install the product Ifthereisnotenoughspace itisnotpossibletoinstalltheproduct RF48SS 47 5 over than 24 PRECAUTIONS BEFORE INSTALLATION ...

Page 6: ...uldbring aboutanelectricshock Inthiscase the productshallbeearthed Checkifthefloorisflat Iftherefrigeratorisinstalledonanunevenfloor itwillcausevibrationandnoise The product must be earthed properly Make sure your power oulet has an earth pin When the product fails to operate properly Make sure to do earth to prevent electric leakage or an electric shock When there is no earth with normal products...

Page 7: ...Type Refrigerant RefrigerantQuantity FreezerPerformance PowerConsumption StarRateIndex AC 115V 60Hz 155kw 500W IndirectCooling HFC 134a 0 5lb 4STAR 730kw Y DOEmeet Dimension GROSS volume Storage volume Tot al Freezer Room Fridge Room Tot al Freezer Room Fridge Room Width mm Height mm Depth mm DISPENSER 766 279 487 705 255 450 48 84 27 8 574lb ...

Page 8: ...or F Sensor PX 41C Temp Selection MAX MID MIN Freezer Model Name Thermistor F Sensor PX 41C Temp Selection MAX MID MIN Step Motor Valve Condenser Dryer Refrigerant BK190CL2X EO2 Inverter Freol α 15 Ester Split Fin Type Fin Cross Type DC14V Unipolar 1 2 Phase Excitation Method Forced or Natural Convection Molecular Sieve XH 9 ID0 85 X L3300 4 4 Kg ID0 85 X L3000 4 2 Kg ID3 36 X L1000 HFC 134a ON 14...

Page 9: ... Overheat Protection Bimetal R Defrost Heater Overheat Protection Bimetal Noise Filter Electric Components RF48SS AC 115V 7W Cordheater Model Name On Temp Off Temp Overload Protector AC250V10A50 60HZ 4TM445 PHBYY 82 156 48 69 9 257 41 125 5 DC12V DREP3030LB φ 67 L237 4 BlowerFan DC12V DREP3030LB φ 67 L295 5 BlowerFan DC12V DRCP3030LA φ 170 ShroudFan DC12VG8015S12B SS 1800RPM DC12VNSBY001TB1 Unipol...

Page 10: ...11 F B 47 C 24 8 D 25 6 H 44 I 52 J 40 8 K 42 9 L 13 6 M 20 3 G E 27 8 83 4 min 84 2 max 84 min 84 8 max MODEL RF48SS A 48 Product Dimension DOOR 90 OPEN ...

Page 11: ...12 PART PART NAME CODE REMARKS ANTI TIP BRACKET Cap support filter Filter Water line Tapping Screw Clip A Sealing Tape DA99 00466A DA29 00003B DA97 00753A 6002 000213 DA65 20110B 0203 000399 DA61 01589A ...

Page 12: ...RATOR CONNECTOR CAPILLARY REF EVAPORATOR SUB CONDENSER PIPE FRE REF HOT PIPE REF CAPILLARY TUBE FRE CAPILLARY TUBE FRE EVAPORATOR REF CAPILLARY TUBE FRE CAPILLARY TUBE RED SUB CONDENSER PIPE FRIDGE COMPARTMENT FREEZER COMPARTMENT REF EVAPORATOR DRYER DRYER ...

Page 13: ...14 Cold Air Circulation FREEZER FAN FRIDGE FAN REF EVAPORATOR FRE EVAPORATOR FREEZER COMPARTMENT FRIDGE COMPARTMENT FRONT VIEW ...

Page 14: ...ates in the evaporator and becomes low pressure low temp Absorb heat from the refrigerator The compressor absorbs the gas refrigerant Send the high temp pressure gas to the condenser The condenser transfers the heat from the compartments and the heat generated during the compression cycle and becomes liquid It reduces its pressure in the capillary tube It goes into the evaporator repeating the abo...

Page 15: ...16 122 104 140 158 203 142 4 213 6lb Actual Refrigerant Pipe 2 2 ...

Page 16: ...idual heat of evaporation away from the surrounding 2 Roles of the Cold Cycle Components Compressor It compresses gas in low temperature and pressure into that of high temperature and pressure and circulates the gas in the cycle Condenser It condenses gas refrigerant in high temperature and pressure into liquid refrigerant in room temperature and high pressure Capillary Tube It decompresses liquid...

Page 17: ...ator This makes small the pressure difference between the high pressure side and the low pressure side and it makes it easy to operate the compressor again 2 Overview 1 Diameter 0 016 0 03 or so 2 Length It is possible to bring it into low temperature and pressure 50 71 2lb according to the resistance of 6 56 long and thin wall of the copper pipe Evaporator 1 Roles It makes food frozen when the lo...

Page 18: ...fthecapillarytubetogetfrozen whichmakesitimpossiblefor therefrigeranttocirculate Sosilicagelormolecularsieve dryingagent issealedtoabsorbthemoistureinsideit andafinenetis installedtoremoveforeignsubstanceatitsbothends Refrigerant Molecular Sieve Metal Filter Effect of Moisture Moisture deposition Clogged by ice Responding with coolant Life time shortening of oil Acceleration of oxidation Copper co...

Page 19: ...igeranttothecompressor Aliquidrefrigeranttothecompressorcancauseitsoverload 2 Structure liquid liquid Inhaling Part of the Compressor The liquid refrigerant which is vaporized from the evaporator will flow into the accumulator It will be vaporized there before being sent to the compressor Gas Refrigerant ...

Page 20: ...21 3 PRODUCT FUNCTION 21 Button Display Panel It shows the set functions Grill Panel Dispenser Itsuppliesdrinkwaterviaawaterfilter andicecubesmadeby theicemaker Freezer Door ...

Page 21: ...22 Door Handle Fridge Door ...

Page 22: ...geshelfdirectlyexposedtothecold air itcouldbecamefrozen Donotstorehotfood storeitaftercoolingdown Ifyoucoolitdownbeforeputting inthe refrigerator theproductcanperform efficiently andpowercanbesaved Whenhotfoodisputintherefrigerator itcould causewatercondensationorfrostinside Makesuretostorefoodcontainerswith lidsorplasticwraponthem Ice Bin It stores ice cubes made by the ice maker Do not store oth...

Page 23: ...ompartment When the content freeze it can burst and causing severeinjury Dairy Bin You can store dairy products such as butter and cheese Fridge Door Bin You can store small packaged refrigerated food and beverages such as milk fruit juice and beer Fridge Compartment Shelf Please put dishes or refrigerated foods with enough space between items Veggie Fruit Drawer You can store vegetables and fruit...

Page 24: ...re time to cancel the POWER FREfunction ThePOWERFREfunctionwillbeautomaticallyturnedoffafteracertain period of time and the freezer temperature will return to the temperature setrightbeforethePOWERFREfunctionisselected When you press the POWER FRE button the refrigerator will continuouslyoperateforacertainperiodoftime QUICK ICE Tocontrolthefreezertemperature followtheproceduresbelow The freezer te...

Page 25: ...bienttemperature Each storage section in the fridge compartment may have a different temperature When the temperature in the fridge compartment has increased due to frequentuseorthestorageofhotfood thetemperaturedisplaywillblink In this case when the temperature reaches the set temperature it will stop blinking But ifitkeepsonblinking pleasecontactourservicecenter REF TEMP MAX MID MIN ThePOWERREFf...

Page 26: ...n you can cool down up to three bottles of room temperature beer enough to drink within an hour You can put food in the Fresh Island and press the QUICK COOL button the refrigerator will operate for an hour continuously If you use QUICK COOL take out the food from the Fresh Island and put it in the fridge compartment during its operation The food could become frozen with the strong air flow To can...

Page 27: ...e compartment will be maintained at 30 regardless of its temperature setting 30 is a temperature which water in food is on the verge of freezing With this temperature you can freshly keep meat or fish that you are about to cook Function selection 4 5 3 Do not put food vegetables or fruits with high water content in the Fresh Island It can freeze them Water contained in food starts begins to freeze...

Page 28: ... on immediately After 5 minutes of the Comp On Fan will be on Comp will be on and Fan will be off INITIALIZATION INITIAL POWER ON It is an operation for checking that the ice maker is good after the initial power on 1 When the power is applied for the first time the ejection arm will be rotated by rotating the Ice eject motor clockwise 2 During the ejection arm rotating supply water for 0 5 second...

Page 29: ... sensor is maintained below 18 5 for more than 5 seconds it carries out the ice ejection EJECTION FUNCTION After completion of ice making the operation of ice separation from the ice tray will be carried out 1 To separate ice from the ice tray ejection arm will be rotated by rotating the Eject Motor clockwise 2 When the ejection arm is restored to the horizontal position the operation of ice separ...

Page 30: ...sofR DefrostSensorandF Defrost Sensorandtheyareasfollows General Defrost Condition Forced Defrost Function Category Fridge All cases Freezer All cases 63 Refer to options 54 Refer to options For A S 4 ALARM Function ButtonTouchTone 1 WhenselectingeachbuttonontheControlPanel theButtonTouchSoundisheard 2 Inthecaseofpressingmorethantwobuttonsatthesametimeorpressingawrongbutton thesoundwillnotbeheard ...

Page 31: ...tsofthedisplaywillblink 4 TheLoadStatusDisplaycontinuesfor30secondsandthenisrestoredtothenormaldisplay 6 RestorationofOperationConditionsduringPowerFailure 1 PowerfailureorinitializationofthePanelDisplaycancausethecustomertocallforservice Toavoidthis ifthepoweron itdeterminesthetemperatureoftheF Roomtodecidewhethertogointo initializationortorestorethe previousoperationconditions 2 Withtheinitialpo...

Page 32: ...ve Open LED segment ON The relevant segment LED comes on when the COMP operates The relevant segment LED comes on when the F FAN HIGH operates The relevant segment LED comes on when the F FAN LOW operates The relevant segment LED comes on when the F Defrost Heater operates The relevant segment LED comes on when the C FAN HIGH operates The relevant segment LED comes on when the C FAN LOW operates T...

Page 33: ...ceddefrostor TestoperationiscancelledwithinaminuteortheForcedOperationselection thetemperatureschangetothepreviouslyselected temperatures 5 UponcompletionoftheForcedOperation 24hours bothcompartmentsperformaDefrostregardlessoftheirpreviousoperating conditions 6 Aftertheabove DefrostoperatesundernormaldefrostconditionsaccordingtothesettingcontrollingtheR Defrost 7 WhentheForcedOperationiscancelledb...

Page 34: ...ecattheintervalof0 5secthenwhenpressing thePOWERFRE buttonandthePOWERREF buttonsimultaneouslyfor8sec including2secblinking self diagnosis willbeselected 2 Atthispoint thesoundgoesoffandtherefrigeratorgoesintotheself diagnosis 3 When the self diagnosis starts the entire LEDs turn off and the error related LED segments blink indicating errors See the Self DiagnosisChecklistbelow 4 Whenanerroroccurs ...

Page 35: ...FAN Motor Contact failure of feedback signal line no motor wire etc Errors in operation of C FAN Motor Contact failure of feedback signal line no motor wire F Heater Housing slip out contact failure wire cut wire short Defective F Heater Defective Defrost Temp Fuse Defective Main PCB Pattern and MICOM Defective PCB Housingslip out Contact Failure Wire Cut Wire Short Defective MICOM Displaying a de...

Page 36: ...eratureoptionitemcanbesetandthecurrenttemperaturesetting oftheFreezer willbeshownontheFREEZER 3 After setting 0 to the FREEZER and selecting 6 as shown in the Freezer option chart next page the standard Freezer temperature willbeloweredby 3 SeethefigureonthetemperaturechangesoftheF Room In20secondsafterthetemperature isadjusted MICOMstoresthissetvalueinEEPROMandrestoresthenormalDisplayand exits th...

Page 37: ...of quality improvement during mass production Please make sure to check the Quality Information Note By pressing the FRE TEMP button and the POWER REF button various options including the above functions can be set They are items related to controlling the refrigerator and having no relevance to A S So Do not set options except those in A S Manual above Note 4 16 OptionTable Set Item FREEZER 7 SEG...

Page 38: ...rol of Ice Maker Sensor This is the option to change the standard temperature of Ice Maker Sensor 22 20 18 16 14 12 10 8 0 1 2 3 4 5 6 7 Automatic water supply 5 sec 4 sec 3 sec 6 sec 7 sec 8 sec 9 sec 10 sec 12 sec 13 sec 15 sec 17 sec 19 sec 21 sec 23 sec 25 sec FREEZER Display 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 FreshIslandTempShiftFunctionThisistheoptiontochange thestandardtemperaturecontrol...

Page 39: ...levant page assigned to each number below Make sure to turn the refrigerator off before disassembling the components as shown below Machine Compartment Cover 45 Upper Custom Panel of F Room 45 Door Handle 45 Custom Panel of R Room 45 Dispenser 44 NO Description Page Lower Custom Panel of F Room 45 Leg Cover 45 NO Description Page HowtoDisassembleEachComponentforA S 5 ...

Page 40: ...ssemble Dispenser cover refer to pull out the Guide Ice Dispenser to the front Push the Ass y Cover Ice Route to the left using a tool like screw driver and pull out DISPENSER CAM GEAR MOTOR Disassemble Dispenser cover refered to disassemble the circled 2 screws from the assembly Disassemble the Cam from the Motor like figure 2 Disassemble the circled 2 screws and then pull Motor out DISPENSER PUS...

Page 41: ...6 screws and pull out the Cover DECOR ATION PANEL FREEZER UPPER PART Disassemble the Handle Pull the panel out to the Handle side like figure 2 Refer to the this method to disassemble the Freezer lower part and Fridge part FREEZER DOOR Disassemble grill cover disassemble the fixing Clamp and Earthing wire Untie the plastic packing for protecting water and then disassemble the 2 housings of wire Di...

Page 42: ...igure 10 to pull out wires At least 2 people need to disassemble the Freezer Door because there is a risk tipped over so one man pull to out the door by lifting up and the other man push the Water Line through lower Hinge Be careful not to hurt wires and Water Line DOOR UPPER CHASSIS AT FREEZER Disassemble the circled 8 screws and pull out Freezer lower Chassis Disassemble 5 screws same as Upper C...

Page 43: ...the exploded view Ice Storage Bin 48 Winter Closet 49 F Room Lamp 51 Ice Chute F Room Shelf 48 F Room Utility Bin Dry Room Meat Drawer 48 R Room Shelf 48 NO Description Page R Room Lamp 53 Veg Fruit Drawer 48 Fresh Island 52 Dairy Bin 48 R Room Utility Bin Grille Panel 54 NO Description Page 6 2 2 Interior Overview Make sure to turn it off before disassembly Risk of electric shock ...

Page 44: ... to the direction as indicated with the arrow marks and lift it up to remove it Dairy Bin Lift Dairy Guard up with both hands and remove it Shelf Common to R and F Room Hold the shelf with one hand and lift the rear up with the other hand and pull it forward Drawer Common to R and F Room Pull forward until it stops at the retaining hook then lift it up and pull out Make sure not to damage the door...

Page 45: ...e Maker and the power cord housing pull the Ice Maker Kit forward to disassemble Lift up the rear cover of the Auger Motor Ass y to disassemble When replacing the Ice Maker Geared Motor remove the 2 screws indicated with the arrow marks in the photo When replacing the Auger Motor remove the 4 screws indicated with the arrow marks and remove the hex nut at the motor axis to take the motor body and ...

Page 46: ...rain hose out put it aside and remove the wire holder Remove the 2 screws that hold the evaporator case and lower the evaporator down slowly in order not to have the flexible pipe bend Release the wire from its retainer and pull the bottom side of the evaporator cover down as shown in the photo Release the six retaining hooks from both walls using a flat blade screwdriver and take the front cover ...

Page 47: ...taining hook at the place indicated with the white arrow mark Take the drain heater out and remove its housing F Room Interior Lamp Remove the drawer When replacing only the lamp disassemble the lamp cover after removing the screw indicated with the white arrow mark to take an example of the left indoor lamp from the first photo and pull the glass forward to replace the lamp When you replace the L...

Page 48: ... Island Thermister on the bottom of the upper plate Unscrew the 3 screws to remove the cover off the sensor To replace LED lamp you need to replace the whole PCB board to which the lamp is mounted Fresh Island LED Display Fresh Island Refer to the first two steps of the removal of Thermister and LED Lamp to disassemble the LED Display cover by using a flat blade screwdriver as shown in the photo a...

Page 49: ...R Room Sensor to remove the upper cover of R Room the drain cover and the housing Remove the screws on the upper duct indicated with a arrow to disconnect the upper duct and remove the 2 screws that secure the evaporator Then lower the evaporator down slowly in order not to have the pipe bend Remove the front evaporator cover to disassemble the relevant parts as shown in the photo To remove the Fa...

Page 50: ...lock Pull out Transformer after disassembling 2 screws PCB BOX After disassembling the Transformer first pull out Housing connected to the terminal block second remove 2 screws third disassemble ground wire and finally pull out PCB BOX Cover After opening PCB BOX Cover pull out Housing and disassemble 4 screws to remove SMPS Disassemble Main PCB from PCB BOX Main PCB should be fixed to a hook like...

Page 51: ...Pull out Fan Ass y refer to figure disassemble circled 2 screws First disassemble the locking spring of Fan second disassemble 2 screws for mounting Motor Cover third disassemble the wire Housing and then pull out the Motor by rotating it POWER SWITCH Disassemble circle 2 screws mounting bracket and Housing connected to PCB BOX then pull out Power switch from the bracket INSULA TION COVER OF CONNE...

Page 52: ... Supply Clip WATER VALVE Turn off Water supply disassemble Cover Grill then disassemble the wire Housing of the Water Valve located at the left back Disassemble hex nut supply hose using wrench Disassemble Water Valve after disassembling the bracket and screw which secure the Water Valve POWER CORD Disassemble Cover Grill disassemble the circled 4 screws for mounting Housing Cover Pull out the Hou...

Page 53: ...Test the terminals on the PCB Case to check for voltage or operation related errors concerning QUEEN PJT The terminal composition is shown in the diagram If an error is found while testing the above terminals and the housing connectors check the inside of the PCB Case The following descriptions are based on the PCB Case ...

Page 54: ...55 5 1 How to run Test Mode AC115V DC160V AC115V 1 When the refrigerator is not turned on ...

Page 55: ...e PCB Open and repair the Connection state Is the Freezer sensor normal Is the connector of Main and Inverter normal Is the connector of Inverter J2 normal Is the connector of Compressor normal Is the Compressor ASS Y normal Change or repair Compressor ASS Y Check contact of connector Insert connector fully Replace Micom and PCB Check contact of connector 2 When the compressor does not operate ...

Page 56: ...57 3 When Defrost does not operate NO NO 23 54 63 ...

Page 57: ...58 4 When error is detected by Self Diagnosis Sensor Error ...

Page 58: ...59 5 When the alarm sound will not turn off ...

Page 59: ...60 ...

Page 60: ...61 6 When there is fault in the display and communication error ...

Page 61: ...62 7 When Fan does not operate ...

Page 62: ...63 8 When Fresh Island does not operate properly Only applied to Fresh Island Model ...

Page 63: ...64 115V 115V 9 When F R Room Lamp does not light up ...

Page 64: ... normally Replace Lamp Check Socket Replace Does it operate normally after a certain time Replace Bimetal Replace Door Replace Dispenser Pad Replace Dispenser S W Check wires Check wires Replace PCB Main Replace PCB Case Ass y Does the Dispenser Pad work normally Does the Dispenser S W on and off normally Is a voltage out put at PCB Case CN7 correct Is the connection between CN6 and PCB Main CN31 ...

Page 65: ...66 11 When Cover Ice Route Motor Geared Motor does not operate properly Caution ...

Page 66: ...67 12 WhenWaterValvedoesnotoperate 115V ...

Page 67: ...68 115V 115V 115V 13 WhenCRUSHEDorCUBEDdoesnotoperateproperly ...

Page 68: ...TER SOL VALVE WATER SOL VALVE DISPENSER LAMP WATER TANK HEATER COMPRESSOR COOL FAN F ROOM FAN R ROOM FAN COVER ICE GEARED MOTOR F ROOM LAMP R ROOM LAMP AUGER MOTOR CUBE SOL VALVE CONVERTIBLE ROOM FAN DAMPER MOTOR STEP MOTOR DRIVING PART F ROOM FAN R ROOM SENSOR F DEF SENSOR R DEF SENSOR AMIBIENT SENSOR CONVERTIBLE SENSOR SENSOR LCD CONTROLER DISPLAY CTL CIRCUIT LCD ICE MAKER CTL TEST MODE CTL NORM...

Page 69: ...70 9 WIRING DIAGRAM ...

Page 70: ...nication Circuit Communication Circuit between Main and LCD Panel Convertible Room Control Circuit Temp Display Function Selection of Convertible Room Inverter Compressor Control Circuit Comp RPM signal output according to load conditions EEPROM Storage of various data Ice Maker Driving Circuit Circuit for Ice Maker operation Damper Driving Circuit Damper for Temp Control of Convertible Room Step ...

Page 71: ...72 10 2 PARTS DESCRIPTION SMPS INVERTER Convert AC inputs into DC voltages 5V 12V for the refrigerator control ...

Page 72: ...TCH PERIPHERY CIRCUIT AC LOAD CTL CIRCUIT FAN DRIVING CIRCUIT FLOW SENSOR DAMPER DRIVING CIRCUIT ICE MAKER DRIVING CIRCUIT STEP MOTOR DRIVING CIRCUIT MICOM PERIPHERY CIRCUIT INVERTER CTL CIRCUIT EEPROM N A CONVERTIBLE ROOM CTL CIRCUIT LCD PANEL COMM CIRCUIT 11 CIRCUIT DIAGRAM ...

Page 73: ...2V VOLTAGE 1 5 STEP VALVE 1 F FAN OPSIGNAL 2 F FAN OPVOLTAGE 3 GND 4 CUBE SOLENOID S W 5 F SENSOR 6 F DEF SENSOR 1 2 DAMPER HEATER 3 6 DAMPER MOTOR 7 8 CONVERTIBLE FAN 9 R FAN OPSIGNAL 10 R FAN OPVOLTAGE 11 GND 12 R SENSOR 13 R DEF SENSOR 1 C FAN OPSIGNAL 2 C FAN OPVOLTAGE 3 GND 4 N A 5 FLOW SENSOR OUT 6 FLOW SENSOR GND 7 FLOW SENSOR VOLTAGE 1 F DEF HEATER 3 COMMON LIVE 5 R DEF HEATER 7 ICE WATER ...

Page 74: ...75 12 2 CONNECTOR ARRANGEMENT DESCRIPTION SMPS INVERTER 1 COMP U PHASE 2 COMP V PHASE 3 COMP W PHASE COMPRESSOR RPM SIGNAL COMPRESSOR OLP 1 5V 2 GND 3 4 12V VOLTAGE INPUT AC 240V INPUT AC 240V ...

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