Daewoo ROOM AIR CONDITIONER DWC-121R User Manual

40Service ManualWindow Type Room Air ConditionerModel: DWC-121R / (DWC-124R)DWA-122R / (DWA-124R)DWB-122R / (DWB-124R)DWA-121R / DWB-121RDWB-123R / DW

9If you set time in OFF-Timer Mode, the unit will stop at the set time.If you set time in ON-Timer Mode, the unit will run at the set time.(1) Range o

10(1) When you are going to sleep, select sleep button in remocon and the unit controls the room to the desiredtemperature. (The unit will not operate

11Auto Swing(1) When you push this button, in remocon the left/right flap move to the position of keeping the room temperaturecomiortable.(2) The air

123. WIRING DIAGRAM(3103529000)

134. REFRIGERANT CYCLEEvaporatorCapillary tubeBlower fanCondenserPropeller fanAccumulatorCompressorM MOTORCapillary tubeCharge QuantityDWA-121RID1.6Ø

145. CONTROL BLOCK DIAGRAMRelay 3, 4, 5Auto SwingMoterFan Motor Compressor88 LEDFront PCBFan mode LampTurbo mode LampRemoconSignalReceiverCooling mode

156. CIRCUIT DIAGRAM

16NO PART NAME SPEC PART CODE Q’TY REMARK1 IC MICOM TMP47P443N 13GSHK64-- 1 U12 IC DRIVE TD62004AP 13GT62004A 1 U33 IC DRIVE TD62783AP 13GT62783A 1 U2

17NO PART NAME SPEC PART CODE Q’TY REMARK1 LED DISPLAY 88 3103003700 1 DISP2 C-CERA 103Z 50VDC CXCH1H103M 1 C13 RECEIVE MODULE PIC-26043TH2 1PC26043TH

187. TROUBLE SHOOTING1) Error Code 1(Er)1 Check the connector of room air thermistor. (or connecting wire) 2Check soldering of connecting on control P

CONTENTS1. Specifications ...22. Operation...

19- Check the following at cooling modeCheck the voltage between “POWER ”and “RL1”of Main P.C.B31Check the compressor wiringCheck the Relay(RL1)Check

PCB DRIVING DESCRIPTION

21Power Supply(1)DESCRIPTIONDC Power Supply in circuit needs +12V and +5V. +12V is used for Compressor Driving Relay, Fan MotorDriving Relay, Buzzer D

22Oscillation(2)128 MHzMICOMVDD-10%VSS+10%Fig 2-1DESCRIPTIONOscillatory Frequency drive Micom, it is made up 8MHz resonator oscillatory Freqency.Ocill

23Room temperature Sensor InputTemperature(°C)No. 15-10 4.060 3.6015 2.7625 2.2040 1.48Voltage (V)Table 3-1Sensor(3)MICOM15R4300C130.01R312.7KVccROOM:

24DESCRIPTIONSignal from Remote Controller put in only Control Data Signal at Micom Terminal of Number 5, which is gottenfield of Carrier (38KHz) from

25DESCRIPTIONMICOM Power is supplied 5V at Number 28 using VDD, Number 6 using Analog Reference of A/D Converter.C9, C10 is Ripple filter.Micom Power

26Reset(6)+C111µF/50R15.6K 5V5VRESET ICMICOM370423124.2VHLttPOWERONVcc (+5V)DELAY TIMEFOR POWER ONRESETDESCRIPTIONVoltage less than about 4.2V put

27R310K R210K +5VMICOM1327˚F/ ˚CTESTFunction Selecting(7)Table 9-1Selection S/W SHORT OPENFunction˚F / ˚C ˚F ˚CTEST OK NODESCRIPTIONSelecting F

28(1) IC3 (MICOM)(2) U2 (TD62783AP)XOUT1 28 VDDXIN2 27 HOLD (KE0)TESTRESET3 26 R92 (SCK)Display OutR704 25 R91 (SO)Fan Speed(Hi) Display OutR71 (PULSE

21. SPECIFICATIONSITEMMODELFunctionPower source AC 115V, 60HzCooling CapacityBtu/h 12,100 12,000 12,000 11,700 12,000 11,500 14,018 14,000Kcal/h 3,050

29(3) U2(TD62004AP) DARLINGTON ARRAYS(4) U7 (7805CT): VOLTAGE REGULATOR (5VDC)(5) U6 (7812ACT): VOLTAGE REGULATOR (12VDC) IN1 1 16 OUT 1IN2 2 15

309. DISASSEMBLY INSTRUCTIONS1 Before service of 1. Stop the unit, remove the power cord from the receptacles.any part. 2. Move the unit to the safe l

31• HOW TO REMOVE THE FRONT GRILLE FOR ALL MODELS EXCEPT DW✽-124R, DWA-152R1. Pull the Air-filter out of the Front Grille.2. Loosen screw which faste

32• HOW TO REMOVE THE FRONT GRILLE FOR ONLY DW✽-124R, DWA-152R1. Open the grille upward by pulling out the bottom of thegrille, lift it.2. Remove scre

3310. EXPLODED DIAGRAM AND PARTS LIST DWA-121R,DWA-122R(124R),DWB-121R,DWB-122R(124R),DWB-123R,DWC-121R(124R),DWA-150R,DWA-151R(152R) PARTS LISTNO CO

34NO CODE COMPONENTS Q'TY SPECIFICATION REMARK3104425820 PIPE DISCHARGE 1 C1220T-O OD7.94 DWA,B-122R,123R,124R(ONLY)16 3104425810 PIPE DISCHARGE

35NO CODE COMPONENTS Q'TY SPECIFICATION REMARK40 3104302300 PCB MAIN AS 1–41 3104302400 PCB FRONT AS 1–5EPU04000 TRANSFORMER 1 DWA-220B(115V/60Hz

DWA-121R, DWA-122R, DWB-121R, DWB-122R, DWB-123R, DWC-121R, DWA-150R,

A-151R DWA-151R EXPLODED DIAGRAM

DW✻-124R, DWA-152R EXPLODED DIAGRAM (NOTE: ✻→A or B or C)

31PARTS OF NAME AND FUNCTION2. OPERATION● DW*-121R/DW*-122R/DWB-123R/DWA-150R/DWA-151R (NOTE:* ➔ A or B or C)NO PART NAME1 AIR FILTER2 GRILLE FRONT3 C

S/M NO.: DWC121R040DAEWOO ELECTRONICS CO., LTD.686, AHYEON-DONG MAPO-GU SEOUL, KOREAC.P.O. BOX 8003 SEOUL, KOREATELEX: DWELEC K28177-8CABLE: “DAEWOOEL

4NO PART NAME1 AIR FILTER2 GRILLE3 CABINET4 BLADE VERTICAL5 PANEL CONTROL6 REMOTE CONTROLLERNO PART NAME7 BLADE HORIZENTAL8 AIR VENT9 FRAME GRILLE10 F

52REMOTE CONTROLLERREMOCON SIGNAL TRANSMITTERTIMER/CANCEL• Everytime you push this button,timer is set as follow.(1Hr→2Hr→3Hr→4Hr→5Hr→6Hr→8Hr→10Hr→12H

63REMOTE CONTROLLER DISPLAYRoom Air-conditionerFANTURBOCOOLINGROOM TEMPTEMPDESIRED TEMPTIMERSENSORMODE POWERFANSPEEDAUTOSWING88TEMP./TIMER DISPLAY• It

7MODE FAN SPEED AUTO SWINGPOWERRoom Air-conditionerFanTurboCoolingRoom tempDesired tempTimerTEMPSENSORTEMP./TIMER DISPLAY• It displays the temperature

8Replacing BatteriesRemove the COVER fromthe back of the remotecontroller.• Slide the coveraccording to the arrowdirectionInsert two battaries. • Be s