Service Manual Window Type Room Air Conditioner Model: DWB-180CH-R DWB-240CH-R DWA-181CH DWA-186CH DWA-240CH-R DWA-246CH-R ✔ 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 CORP.
TABLE OF CONTENTS 1. PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. GENERAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3. NAMES OF MAJOR COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4.
1. PRECAUTION Please observe the following instructions. 1. Turn off unit. - Make sure the unit is OFF and the AC cord is unplugged before repairing or servicing. 2. In case of checking the circuit unavoidably while the unit is connected with power source, be careful not to connect with the part of electric charge. - You may cause electric shock. 3. Use of proper part if you need to replace the part, be sure to use genuine part of servicing model. - Do not repair or replace the electric contact part.
2. GENERAL SPECIFICATIONS MODEL DWA-181CH DWA-186CH DWA-240CH-R DWA-246CH-R DWB-180CH-R DWB-240CH-R ITEM Power Source V/Hz Btu/h Capacity (Cooling & Heating) Kcal/h Dehumidification AC 220V/60Hz AC 220-240V/50Hz 18,000 24,000 18,000 24,000 4,536 6,048 4,536 6,048 2.3 3.0 Cooling 2,100 2,700 2,240 2,750 Heating 1,800 2,300 1,880 2,350 Cooling 11.0 12.5 10.4 13.4 Heating 10.0 10.5 8.8 11.4 L/h 2.
3.
• DWA-186CH/DWA-246CH-R 3 2 7 4 8 1 5 9 q 0 6 NO PART NAME NO 1 AIR FILTER 7 BLADE HORIZONTAL 2 INLET GRILLE 8 AIR VENT 3 CABINET 9 GRILLE FRONT 4 BLADE VERTICAL 10 AUTO SWING SWITCH 5 KNOB THERMOSTAT 11 HEATER LAMP 6 KNOB SELECTOR 5 PART NAME
4. FUNCTION OF MAIN COMPONENTS • DWA-181CH/DWA-240CH-R/DWB-180CH-R/DWB-240CH-R NOTE • ECONOMICAL AND COMFORTABLE USE 1. Properly control the room temperature. 2. Avoid being exposed to direct sunlight. Keep direct sunlight from the room 3. Prevent the wind from entering the room. • FAN & COOLING CONTROL The Fan Control Selector Switch has six positions.
• DWA-186CH/DWA-246CH-R NOTE • FOR MOST ECONOMICAL USE 1. Properly control the room temperature. 2. Avoid the unit being exposed to direct sunlight. Keep direct sunlight from the room. 3. Prevent the wind from entering the room. • FAN & COOLING CONTROL The Fan Control Selector Switch has six positions.
• MOTOR The motor is used to rotate the indoor and outdoor fan so that the room air can be recirculated. CAUTION In order to After Service convenience that the motor is common parts with Cooling only model, (This part is not use of medium speed function so that the lead wire’s receptacle is taping) Because of the motor supplies of having a lead wire’s receptacle when Heat Pump model’s After Service that it is necessary to taping of lead-wire.
5. GENERAL INFORMATIONS • CHANGING AIR FLOW DIRECTION Air flow deflectors divert air from center flow to left or right and up or down. Adjust deflectors for desired air flow pattern. AUTO SWING When the auto louver switch is turned to “ON” position, the vertical louvers AUTO SWING DEFLECCIÓN AUTOMÁTICA automatically move right and left. Thus, you can obtain comfortable cooling. The vertical louvers may be stopped at any position when the auto louver switch is turned off. ENCEN./APAG.
CAUTION 1. Remove “the Grille Front” from the unit. 2. Find “the Cabinet Drain” which is attached on rear side of “the Grille Front”. - If you don’t remove it. the unit cannot be operated normally. 3.
6. CARE AND MAINTENANCE • DWA-181CH/DWA-240CH-R/DWB-180CH-R/DWB-240CH-R CAUTION To avoid death of personal injury due to electrical shock, turn fan control OFF and unplug power cord before cleaning or performing maintenance. After cleaning or performing maintenance, reconnect power. • AIR FILTER Clean the air filter, which removes dust inside the room. It should be washed at least once every week during operation. 1. Remove the Air Filter from the front grille by pulling up. 2.
• DWA-186CH/DWA-246CH-R CAUTION To avoid death of personal injury due to electrical shock, turn fan control OFF and unplug power cord before cleaning or performing maintenance. After cleaning or performing maintenance, reconnect power. • AIR FILTER Clean the air filter, which removes dust inside the room. It should be washed at least once every week during operation. 1. Open the inlet grille upward by pulling out the bottom of the inlet grille, lift it. 2.
7. ELECTRICAL REQUIREMENTS • ELECTRICAL GROUNDING INSTRUCTIONS This appliance is equipped with a three-prong(grounding) plug for protection against possible shock hazards. If a two-prong wall receptacle is encountered, the customer is required to contact a qualified electrician and have the two-prong wall receptacle replaced with a properly grounded three-prong wall receptacle in accordance with the National Electrical Code.
8. DESCRITION OF FUNCTIONS • COOLING OPERATION If the rotary switch is turned to “COOL”, the unit starts to cooling operation. The power is not supplied to the de-ice controller P.C.B(Deicer PCB) in this mode. The fan motor is “ON” when rotary switch is turned to “COOL” because RL1(on the P.C.B) is normally close. • HEATING OPERATION If the rotary switch is turned to “HEAT”, the unit starts to heating operation. The power is supplied to the de-ice controller P.C.B in this mode.
9.
10.
11.
1. DC POWER SUPPLY Refer to “C” (DC Power) in the circuit diagram DC Voltages is needs +12[V] and +5[V]. DC +12[V] is used for relay control, and DC +5[V] is used for the micro-computer. and the peripheral hardware in the P.C.B. DC +5[V] is regulated y IC2(7805S). CE1, CE2, CC6, CC5 designed for voltage regulation or noise filtering. 2. RESET Refer to “A” (reset) in the circuit diagram. Number 4 (IC1) is used for reset the micro-computer when the power is on or off. 3.
12. TROUBLE SHOOTING GUIDE TROUBLE Fan motor and compressor do not run SITUATION 1. Power failure ANALYSIS CAUSE REMEDY 1) Power plug 1) Power failure ● Consult 2) Circuit breaker 2) Circuit breaker is tripped ● In your electric company case of a breaker, turn it on and off a few times 3) Power plug is not contacting ● Replace 2.
TROUBLE SITUATION ANALYSIS CAUSE 1) Fan 2) Fan motor 3) Capacitor 4) Fan motor circuit The compressor runs but the motor doesn’t run ● Blocked by others ● Disconnection or burned-out REMEDY ● Repair ● Replace the fan motor electric cord ● Failure malfunction of contact ● Disconnection of malfunction of ● Replace ● Check the circuit contact Both fan motor and compressor are running but cooling is bad Not cooling at all Insufficient cooling Refrigerant system 1) Refrigerant system 1) Re
TROUBLE SHOOTING If you find the ice on the outdoor side, please check the P.C.B as following. 1) P.C. B test function. 1) Remove the sensor connector from the P.C.B. 2) Supply the power 3) Short the sensor connector (pin 1 and 3 of CN1) for 3 seconds over. 4) If the relay(RL1) is on and off just one time, the P.C.B. is regard of correct. 5) Connect the sensor to the P.C.B. again. 2) R-T TABLE OF SENSOR. TEMP(°C) R(KOhm) Voltage(V) TEMP(°C) R(KOhm) Voltage(V) -5 -4 -3 -2 -1 0 1 2 3 4 5 43.67 41.
13. HOW TO DISASSEMBLE • DWA-181CH/DWA-240CH-R/DWB-180CH-R/DWB-240CH-R Please refer to the chapter 14 (Exploded diagram and parts list). 1 2 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. Ass’y Fan Motor 1. Remove Front Grille - Fan Motor - Remove Filter Pre. - Propeller Fan - Remove screw(2 point) in Front Grille. - Blower Fan 2. Remove Cabinet from the unit.
• DWA-186CH/DWA-246CH-R Please refer to the chapter 14 (Exploded diagram and parts list). 1 2 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. Ass’y Fan Motor 1. Remove Front Grille - Fan Motor - Open the grille upward by pulling out the bottom of the grille, lift it. - Propeller Fan - Remove screw which fasten Frame Grille with driver. - Blower Fan - Pull knobs out of the control.
14. EXPLODED DIAGRAM AND PARTS LIST. ■ DWA-181CH PARTS LIST No. CODE COMPONENTS Q'TY SPECIFICATION REMARK 1 3100066241 ASS'Y PAN BASE 1 DWA-181CH LIQUID-INJ H/P 2 3106003110 COMP BOLT 3 M8*L46.5(OD 10) 3 3100002900 ASS'Y SEAL CAP DRAIN 1 SEAL C/DRAIN ASSY 4 3106600910 SCROLL LOWER 1 EPS H/P 5 3106700400 CAM 1 POM 6 3104600110 RING VENT 1 NBR P6 7 3101700300 LEVER VENT 1 PP(LG, H-540) 8 3100066510 ASS'Y EVAPORATOR 1 DWB-180CH-R, 4R-4C, H/P, 1.
✔ 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) No.
✔ 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) ■ DWA-186CH PARTS LIST No. CODE COMPONENTS Q’TY 1 3100066241 ASS'Y PAN BASE 2 3106003110 COMP BOLT 3 M8*L46.
✔ 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) No.
✔ 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) ■ DWA-240CH-R PARTS LIST No. CODE COMPONENTS Q’TY SPECIFICATION 1 3100066220 ASS'Y PAN BASE 1 DWB-180CH-R H/P 2 3106003110 COMP BOLT 3 M8*L46.
✔ 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) No.
✔ 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) ■ DWA-246CH-R PARTS LIST No. CODE COMPONENTS Q’TY SPECIFICATION 1 3100066220 ASS'Y PAN BASE 1 DWB-180CH-R H/P 2 3106003110 COMP BOLT 3 M8*L46.
✔ 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) No.
✔ 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) ■ DWB-180CH-R,DWB-240CH-R PARTS LIST No. CODE 1 3100066221 ASS'Y PAN BASE 1 DWB-180CH-R H/P 2 3106002200 COMP BOLT 3 M8*L41.
✔ 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) No.
✔ 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.
• DWA-181CH 3
• DWA-186CH 3
• DWA-246CH-R 3
• DWB-180CH-R / DWB-240CH-R / DWA-240CH-R 3
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.: DWB180CHR2 PRINTED DATE: NOV.
