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S/M No. : DWC121R040
Service Manual
Window Type
Room Air Conditioner
Model: DWC-121R / (DWC-124R)
DWA-122R / (DWA-124R)
DWB-122R / (DWB-124R)
DWA-121R / DWB-121R
DWB-123R / DWA-150R
DWA-151R / (DWA-152R)
4 Caution
: In this Manual, some parts can be changed for improving, their
performance without notice in the parts list. So, if you need the
latest parts information,please refer to PPL(Parts Price List) in
Service Information Center (http://svc.dwe.co.kr).
DAEWOO ELECTRONICS CO., LTD.
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Contents CONTENTS 1. Specifications ................................................................................................2 2. Operation .....................................................................................................3 3. Wiring Diagram..........................................................................................12 4. Refrigerant Cycle.........................................................................................13 5. Control Block Diagram....
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1. SPECIFICATIONS DWC-121R DWA-122R DWB-122R DWA-151R MODEL DWA-121R DWB-121R DWB-123R DWA-150R ITEM (DWC-124R) (DWA-124R) (DWB-124R) (DWA-152R) Function Cooling only Power source AC 115V, 60Hz AC 208~230V, 60Hz AC 220~240V, 50Hz AC 220~230V, 50Hz AC 240V, 50Hz AC 208~230V, 60Hz Btu/h 12,100 12,000 12,000 11,700 12,000 11,500 14,018 14,000 Cooling Capacity Kcal/h 3,050 3,024 3,024 2,950 3,024 2,898 3,533 3,528 Btu/wh 10.1 10.2 10.1 9.9 10.0 10.0 9.4 9.8 Energy Efficiency Ratio Kcal/wh 2.55 2.57
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Room Air-conditioner Room Air-conditioner 2. OPERATION 1 PARTS OF NAME AND FUNCTION DW -121R/DW -122R/DWB-123R/DWA-150R/DWA-151R (NOTE: ➔ A or B or C) * * * 9 3 0 7 q 4 8 2 1 5 6 3 7 4 8 2 1 5 NO PART NAME NO PART NAME 1 AIR FILTER 7 BLADE HORIZENTAL 2 GRILLE FRONT 8 AIR VENT 3 CABINET 9 FRAME GUIDE TOP 4 BLADE VERTICAL 10 FRAME WINDOW KIT 5 PANEL CONTROL 11 SHUTTER WINDOW 6 REMOTE CONTROLLER 3
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Room Air-conditioner Room Air-conditioner DW -124R/DWA-152R (NOTE: ➔ A or B or C) * * 0 3 q 7 2 4 w 8 1 59 6 3 7 2 4 8 1 9 5 NO PART NAME NO PART NAME 1 AIR FILTER 7 BLADE HORIZENTAL 2 GRILLE 8 AIR VENT 3 CABINET 9 FRAME GRILLE 4 BLADE VERTICAL 10 FRAME GUIDE TOP 5 PANEL CONTROL 11 FRAME WINDOW KIT 6 REMOTE CONTROLLER 12 SHUTTER WINDOW 4
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2 REMOTE CONTROLLER REMOCON SIGNAL TRANSMITTER TIMER/CANCEL • Everytime you push this button, timer is set as follow. (1Hr 2Hr 3Hr 4Hr 5Hr 6Hr 8 Hr 10Hr 12Hr 16Hr 20Hr 24Hr CANCEL). SLEEP After the unit is timed, if this button is TIMER/ CANCEL SLEEP • SLEEP mode is selected as pushed, timer is canceled. follow. (L1 L2 Cancel) AUTO SWING FAN SPEED MODE FAN SPEED MODE • Everytime you push this button, • Everytime you push this button, it is selected as follow. it is selected as f
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3 REMOTE CONTROLLER DISPLAY SELECT ONE ALTERNATIVE PAGE 6 or PAGE 7 MODE DISPLAY • It displays the operating mode. TEMP./TIMER DISPLAY • It displays the temperature and the timer. REMOCON SIGNAL RECEIVER TEMPERATURE SET BUTTON • It is the button to set the desired room temperature. The temperature can be set within a range from 16°C (60°F) to 32°C (90°F) by 1°C (1°F) SENSOR Room Air-conditioner 88 FAN ROOM TEMP TEMP TURBO DESIRED TEMP COOLING TIMER FAN AUTO MODE POWER SPEED SWING FAN SPEED BU
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MODE DISPLAY • It displays the operating mode. TEMP./TIMER DISPLAY • It displays the temperature and the timer. REMOTE SIGNAL RECEIVER TEMPERATURE SET • It is the button to set the desired room temperature. The temperature can be set within a range from 16°C (60°F) to 32°C (90°F) by 1°C (1°F) SENSOR Room Air-conditioner Fan Room temp TEMP Turbo Desired temp Cooling Timer MODE FAN SPEED AUTO SWING POWER POWER ON/OFF SWITCH FAN SPEED • To turn the unit ON, push this button. • Everytime you push
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Replacing Batteries Remove the COVER from Insert two battaries. Re-attach the cover. the back of the remote • Be sure that the (+) and • Slide it back into position 1 2 3 controller. (–) directions are correct • Slide the cover • Be sure that both batteries according to the arrow are new direction – + • Do not use rechargeable batteries such batteries differ from standard dry cells in shape, dimensions and performance. • Remove the batteries from the remote controller if the air conditioner is n
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4 DESCRIPTION OF FUNCTIONS OFF-Timer If you set time in OFF-Timer Mode, the unit will stop at the set time. Unit ON ON Unit OFF OFF SET Time HOUR ON-Timer If you set time in ON-Timer Mode, the unit will run at the set time. Unit ON ON Unit OFF OFF SET Time HOUR Control of Room Temperature (1) Range of setting temperature: 16~32°C (2) Setting temperature: Operating temperature of compressor COMP (ON) Room temperatrue * < setting temperature ( COMP (OFF) Compressor OFF Room temperature Desired tem
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Fan Speed (1) Motor speed (high speed, normal speed, low speed). (2) Remote controller setting fan speed. (H, M, L) (3) Relation of operating mode between fan speed. FAN ONLY COOL TURBO H HHH M MM - L LL - Sleep Mode (1) When you are going to sleep, select sleep button in remocon and the unit controls the room to the desired temperature. (The unit will not operate after 4 hour) (2) For changing the temperature. • Mode I (L1) 1°C 0.5°C Difference desired temperature 1°C 0.5°C between room tempe
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Auto Swing (1) When you push this button, in remocon the left/right flap move to the position of keeping the room temperature comiortable. (2) The air discharge direction procedure is below. Auto swing Fixed Turbo Mode(Powerful Cooling) (1) Cooling Condition 1 Fan Speed: High speed 2 Set temperature:16˚C(Fixed) 3 Compressor and Fan ON OFF (Room temperature-18˚C) -1 01 Self-Diagnostic Function The control will contain diagnostic test to verify the integrity of the system. (1)Error Code Display ER
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3. WIRING DIAGRAM (3103529000) 12
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4. REFRIGERANT CYCLE Evaporator Blower fan Capillary tube Accumulator M MOTOR Compressor Propeller fan Condenser Model Name DWA-122R DWB-122R DWC-121R DWA-151R DWA-121R DWB-121R DWB-123R DWA-150R (DWA-124R) (DWB-124R) (DWC-124R) (DWA-152R) Contents ID1.6Ø x L800 Capillary tube ID1.6Ø x L900 ID1.6Ø x L600 ID1.6Ø x L800 740g 790g 730g 690g 680g 760g 790g 780g Charge Quantity 13
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5. CONTROL BLOCK DIAGRAM Front PCB Remote controller 88 LED Remocon Signal Operating Mode Fan mode Lamp Receiver Fan speed Turbo mode Lamp Timer selection Cooling mode Lamp Auto swing Room Temp Lamp Temp setting Desired Temp Lamp ON/OFF Timer Lamp Sleep Main PCB DC 5V DC 12V Beeper MICOM Room Temp A/D Converter DC 12V DC 5V Sensor Transformer DC 12V Drive Ic Tr Relay 2 Relay 3, 4, 5 Relay 1 Auto Swing Fan Motor Compressor Moter 14
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6. CIRCUIT DIAGRAM 15
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Part List MAIN PCB ASS’Y(3104302300) NO PART NAME SPEC PART CODE Q’TY REMARK 1 IC MICOM TMP47P443N 13GSHK64-- 1 U1 2 IC DRIVE TD62004AP 13GT62004A 1 U3 3 IC DRIVE TD62783AP 13GT62783A 1 U2 4 IC REGULATOR KIA7812P 1KA7812AP- 1 U4 5 IC REGULATOR KIA7805P 1KA7805AP- 1 U5 6 IC RESET KIA7042P 1KA7042P-- 1 U6 7 FUSE CLIP AFC-520 3107000600 2 FUSE 8 FUSE 250V, 3.15A 5FULB3152L 1 9 RELAY CS11-12SH 5SC0101128 4 RL2 10 RELAY POWER G4A-1A 5SC010141A 1 RL1 11 RESONATIOR CST8.00MTW 4850L03610 1 OSC1 12 VAR
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Front PCB ASS’Y(3104302400) NO PART NAME SPEC PART CODE Q’TY REMARK 1 LED DISPLAY 88 3103003700 1 DISP 2 C-CERA 103Z 50VDC CXCH1H103M 1 C1 3 RECEIVE MODULE PIC-26043TH2 1PC26043TH 1 REMO 4 LED DLSO-5031D DDLS05031D 3 5 LED DLG-5031D DDLG5031D- 3 6 SWITCH TACT JTP1212 3109300900 6 7 DIODE 1N4148 DZN4148A-- 6 D1-6 8 WAFER SMAW250-08 3108804800 1 CN1 9 WAFER SMAW250-10 3108802400 1 CN2 10 PCB FR-1 3104302200 1 11 JUMPER 10mm 3109400100 7 J1-7 Remocon ASS’Y(3108402900) NO PART NAME SPEC PART COD
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7. TROUBLE SHOOTING Self-Diagnostic Function 1) Error Code 1(Er) 1 Check the connector of room air thermistor. (or connecting wire) 2 Check soldering of connecting on control P.C.B. (Error of soldering or short) 3 Check the resistance of room air thermistor. “Press the temperature Keys (Up & Down), Error code is displayed.” Unit Not Run The power is applied to the unit Rating voltage Check the Check the voltage between “POWER 1 ” Breaker or Fuse under 90% and “RL1 4 of Main P.C.B ” Rating volt
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Only Compressor Do not Run - Check the following at cooling mode Check the voltage between “POWER 1 ” Check the Main P.C.B Rating voltage the circuit for relay and less than 90% “RL1 3 of Main P.C.B driving. ” Rating voltage more than 90% Check the connecting Rating voltage wire between Main less than 90% Check the compressor wiring P.C.B and the compressor Rating voltage more than 90% Check the Relay(RL1) NG Change Relay(RL1) Check the wiring of outdoor unit Check the compressor Open or Short
