Related Manuals for Daewoo DWB-180RH-R
Summary of Contents for Daewoo DWB-180RH-R
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Page 1: Service Manual
Service Manual Window Type Room Air Conditioner Model: DWB-180RH-R DWB-186RH-R DWB-240RH-R DWB-246RH-R DAEWOO ELECTRONICS CORP. -
Page 2: Table Of Contents
Contents CONTENTS 1. Specifications ....................2 2. Operation .....................3 3. Wiring Diagram..................18 4. Refrigerant Cycle ..................19 5. Control Block Diagram.................20 6. Circuit Diagram..................21 7. Trouble Shooting Guide ................24 8. Key Components of Electronic Circuit ............33 9. Disassembly Instructions ................35 10. Exploded Diagram and Parts List..............37... -
Page 3: Specifications
1. SPECIFICATIONS MODEL DWB-180RH-R DWB-186RH-R DWB-240RH-R DWB-246RH-R ITEM Power Source V/Ph/Hz AC 220-240V / 1 / 50Hz Btu/h 18,000 24,000 Capacity (Cooling & Heating) Kcal/h 4,530 6,048 Dehumidification 2.10 Power Cooling 2,240 2,750 Input(W) Heating 1,880 2,350 Electrical Data Running Cooling 10.40... -
Page 4: Operation
2. OPERATION PARTS OF NAME AND FUNCTION • DWB-180RH-R/DWB-240RH-R PART NAME PART NAME AIR FILTER PANEL CONTROL GRILL FRONT REMOTE CONTROLLER CABINET BLADE HORIZENTAL BLADE VERTICAL AIR VENT... - Page 5 • DWB-186RH-R / DWB-246RH-R PART NAME PART NAME AIR FILTER REMOTE CONTROLLER INLET GRILLE BLADE HORIZENTAL CABINET AIR VENT BLADE VERTICAL GRILLE FRONT PANEL CONTROL...
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Page 6: Remote Controller
REMOTE CONTROLLER REMOCON SIGNAL TRANSMITTER TIMER/CANCEL • Everytime you push this button, timer is set as follow. (1Hr 2Hr 3Hr 4Hr 5Hr 6Hr 8Hr 10Hr 12Hr 16Hr 20Hr 24Hr CANCEL). SLEEP After the unit is timed, if this TIMER/ • SLEEP mode is selected as CANCEL SLEEP button is pushed, timer is... -
Page 7: Remote Controller Display
REMOTE CONTROLLER DISPLAY • DWB-180RH-R/DWB-240RH-R MODE DISPLAY • It displays the operating mode. TEMP./TIMER DISPLAY • It displays the temperature and the timer. REMOCON 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) - Page 8 • DWB-186RH-R / DWB-246RH-R MODE DISPLAY • It displays the operating mode. TEMP./TIMER DISPLAY • It displays the temperature and the timer. REMOCON TEMPERATURE SET SIGNAL • It is the button to set the desired RECEIVER 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...
- Page 9 Replacing Batteries Remove the COVER Insert two battaries. Re-attach the cover. from the back of the • Be sure that the (+) and • Slide it back into position remote controller. (–) directions are correct • Slide the cover • Be sure that both batteries according to the arrow are new direction...
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Page 10: Operation Instruction
OPERATION INSTRUCTION • DWB-180RH-R/DWB-240RH-R FUNCTION OPERATION DISPLAY POWER ON 1. The unit starts working. 1. Current room temperature is (It is delayed 30 seconds after main displayed. power source is supplied.) 2. ‘COOLING’ lamp lights. POWER when running the unit again after... - Page 11 FUNCTION OPERATION DISPLAY FAN MODE 1. The Fan works only. 1. Current room temperature is 2. In this mode, the unit circulate room displayed. MODE air. 2. ‘FAN’ lamp lights. MODE 3. Fan speed can be changed. Push the ‘MODE’ button until ‘FAN’...
- Page 12 FUNCTION OPERATION DISPLAY ON TIMER 1. Timer is changed to as follows by 1. ‘TIMER’ lamp lights. pushing “TIMER/CANCEL” button. 2. Setting time is displayed. TIMER/ CANCEL (1hr 2hr 3hr 4hr 5hr 6hr 8hr 10hr 12hr 16hr 20hr 24hr cancel) ROOM TEMP Push the ‘TIMER/CANCEL’...
- Page 13 • DWB-186RH-R / DWB-246RH-R FUNCTION OPERATION DISPLAY POWER ON 1. The unit starts working. 1. Current room temperature is (It is delayed 30 seconds after main displayed. power source is supplied.) 2. ‘COOLING’ lamp lights. POWER when running the unit again after once having stopped it, please wait Push POWER button for over 3 minutes.
- Page 14 FUNCTION OPERATION DISPLAY FAN MODE 1. The Fan works only. 1. Current room temperature is 2. In this mode, the unit circulate room displayed. MODE air. 2. ‘FAN’ lamp lights. MODE 3. Fan speed can be changed. Push the ‘MODE’ button until ‘FAN’...
- Page 15 FUNCTION OPERATION DISPLAY ON TIMER 1. Timer is changed to as follows by pushing 1. ‘TIMER’ lamp lights. “TIMER/CANCEL” button. 2. Setting time is displayed. TIMER/ CANCEL (1hr 2hr 3hr 4hr 5hr 6hr 8hr 10hr 12hr 16hr 20hr 24hr cancel) 2.
- Page 16 DESCRIPTION OF FUNCTIONS OFF-Timer If you set time in OFF-Timer Mode, the unit will stop at the set time. Unit ON Unit OFF SET Time HOUR ON-Timer If you set time in ON-Timer Mode, the unit will run at the set time. Unit ON Unit OFF SET Time...
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Page 17: Fan Speed
Fan Speed FAN ONLY COOL HEAT (1) Motor speed (high speed, low speed). (2) Remote controller setting fan speed. (H, L) (3) Relation of operating mode between fan speed. Sleep Mode (1) When you are going to sleep, select sleep button in remocon and the unit controls the room to the desired temperature. - Page 18 3min. Time Delay of Compressor In normal operation, there is a time delay of three minutes between turn off and turning back on including initial power up. (but when the unit resets the time delay is 30 seconds) Auto Swing (1) When you push this button, in remocon the left/right flap move to the position of keeping the room temperature comiortable.
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Page 19: Wiring Diagram
3. WIRING DIAGRAM... -
Page 20: Refrigerant Cycle
4. REFRIGERANT CYCLE Evaporator Blower fan Reversing Valve Accumulator Capillary Tube MOTOR Compressor Propeller fan Condenser Refrigerant flow(COOLING) Refrigerant flow(HEATING) -
Page 21: Control Block Diagram
5. CONTROL BLOCK DIAGRAM... -
Page 22: Circuit Diagram
6. CIRCUIT DIAGRAM... -
Page 23: Part List
Caution In this Service 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). Part List MAIN PCB ASS’Y(3114306800) PART NAME SPEC... - Page 24 Caution In this Service 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). Front PCB ASS’Y(3114306100) CODE PART NAME SPEC...
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Page 25: Trouble Shooting Guide
7. TROUBLE SHOOTING GUIDE TROUBLE SITUATION ANALYSIS CAUSE REMEDY Fan motor and 1. Power failure 1) Power plug 1) Power failure Consult your electric company compressor do not run 2) Circuit breaker 2) Circuit breaker is tripped In case of a breaker, turn it on and off a few times 3) Power plug is not contacting Replace the power plug... - Page 26 TROUBLE SITUATION ANALYSIS CAUSE REMEDY The compressor runs 1) Fan Blocked by others Repair but the motor doesn’t 2) Fan motor 3) Capacitor Disconnection or burned-out Replace the fan motor 4) Fan motor circuit electric cord Failure malfunction of contact Replace Disconnection of malfunction of Check the circuit...
- Page 27 Self-Diagnostic Function 1) Error Code E1 or E2 Check the connector of room air thermistor. (or connecting wire) Check soldering of connecting on control P.C.B. (Error of soldering or short) 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...
- Page 28 Only Compressor Do not Run - Check the following at cooling mode Check the Main P.C.B Check the voltage between “CN ” Rating voltage the circuit for relay less than 90% driving. “RL1 (COMP) ” of Main P.C.B Rating voltage more than 90% Check the connecting Rating voltage wire between Main...
- Page 29 PCB DRIVING DESCRIPTION...
- Page 30 1. Power Supply Circuit DC 12V and DC 5V Power source circuit. Diode D4~D7 : Rectifier Diodes Condenser CE1 and CE2 : Smoothing circuit components. DC 12V Power output is made by switching performance of Device IC2 and TRS1. DC 12V Power is used for Relay and Buzzer driving. DC 5V is regulated by IC1.
- Page 31 3. Sensor Signal Input Circuit and Option Port 4 of IC4 is terminal of A/D converter input. Room temperature is sensing by change of temperature resistance. The input voltage is determined by ratio between R8 (10.0 KΩ) and Room sensor value. Relation between temperature and input voltage is as following.
- Page 32 4. Display drive and Key Input Circuit Display operation is dynamic scan drive type. It has 1/3 duty cycle. Scan signal output : Port 21, Port 22, Port 23 TR1~TR6 : Scan signal drive circuit R1~R7 : LED current limit resistance .(for 6 high current output port 12,13,15,16,17,18) Port 19, Port 24 of IC4 : Key signal input by scan.
- Page 33 5. Relay and Buzzer drive Circuit Port 6,7,9 of IC4 : Relay ON and OFF drive signal output. IC3 : Relay ON and OFF drive device. Fan Motor ON/OFF and Speed control : RL2, RL3, RL4 Compressor ON/OFF control : RL1. Swing Motor ON/OFF control : RL5 Buzzer is operated by Port 26 of IC4.
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Page 34: Key Components Of Electronic Circuit
8. KEY COMPONENTS OF ELECTRIC CIRCUIT (1) IC4 (TMP87C809N) MICOM (2) IC2 (TNY264) SMPS SWITCH IC... - Page 35 (3) U2(TD62004AP) DARLINGTON ARRAYS IN1 1 16 OUT 1 KID65004AP IN2 2 15 OUT 2 IN3 3 14 OUT 3 10.5K IN4 4 13 OUT 4 IN5 5 12 OUT 5 7.2K IN6 6 11 OUT 6 IN7 7 10 OUT 7 GND 8 9 COMMON FREE WHEELING DIODES...
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Page 36: Disassembly Instructions
9. DISASSEMBLY INSTRUCTIONS • DWB-180RH-R/DWB-240RH-R Please refer to the chapter 10 (Exploded diagram and parts list). Before service of 1. Stop the unit, remove the power cord from the receptacles. any part. 2. Move the unit to the safe location for the suitable work. - Page 37 • DWB-186RH-R / DWB-246RH-R Please refer to the chapter 10 (Exploded diagram and parts list). Before service of 1. Stop the unit, remove the power cord from the receptacles. any part. 2. Move the unit to the safe location for the suitable work. 1.
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Page 38: Exploded Diagram And Parts List
10. EXPLODED DIAGRAM AND PARTS LIST. DWB-180RH-R/DWB-240RH-R PARTS LIST CODE COMPONENTS Q’TY SPECIFICATION REMARK 3100066221 ASS'Y PAN BASE DWB-180CH-R H/P 3106002200 COMP BOLT M8*L41.6(OD 10) 3100002900 ASS'Y SEAL CAP DRAIN SEAL C/DRAIN ASSY 3106600910 SCROLL LOWER EPS H/P 3106700400 3104600110... - Page 39 3106502202 BLADE VERTICAL HIPS(HI-450) 18K,24K 3106502100 BLADE HORIZENTAL PP(LG, H-540) 3101902201 FILTER PRE HIPS+MESH #PP32 3101601520 DECO FRONT NEW PCB(DWB-180RH-R) 3100509211 BOX CONTROL SGCC T0.8 ELECTRO TYPE 3102709920 HARNESS OD SENSOR TSD310DAACX15 3100075800 ASS'Y CABINET DRAIN DWB-180CH-R 3966031000 SWING MOTOR...
- Page 40 DWB-186RH-R/DWB-246RH-R PARTS LIST CODE COMPONENTS Q’TY SPECIFICATION REMARK 3100066221 ASS'Y PAN BASE DWB-180CH-R H/P 3106002200 COMP BOLT M8*L41.6(OD 10) 3100002900 ASS'Y SEAL CAP DRAIN SEAL C/DRAIN ASSY 3106600910 SCROLL LOWER EPS H/P 3106700400 3104600110 RING VENT NBR P6 3101700300 LEVER VENT PP(LG, H-540) 3100066510 ASS'Y EVAPORATOR...
- Page 41 CODE COMPONENTS Q’TY SPECIFICATION REMARK 3100066310 ASS'Y CONDENSER DWB-180CH-R 3R-2C H/P 2.0 3100070811 AS PIPE COND IN DWB-180CH-R H/P 3100070911 AS PIPE COND OUT DWB-180CH-R H/P 3104431300 PIPE 4-WAY EVA C1220T-0L OD 12.7*T0.7 3100074601 AS PIPE DISCHARGE DWB-180CH-R H/P 3100074501 AS PIPE SUCTION DWB-180CH-R H/P 3112201410...
- Page 42 DWB-180RH-R / DWB-240RH-R...
- Page 43 DWB-186RH-R / DWB-246RH-R...
- Page 44 DAEWOO ELECTRONICS CORP. 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX: DWELEC K28177-8 CABLE: “DAEWOOELEC” FAX: 02) 590-6291 TEL: 02) 360-7114/590-6151~5 http://www.dwe.co.kr S/M NO.: DWB180RHR02 PRINTED DATE: JAN.2004...