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TABLE OF CONTENTS
1. PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. GENERAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. NAMES OF MAJOR COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4. FUNCTION OF MAIN COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5. GENERAL INFORMATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6. CARE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7. ELECTRICAL REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8. DESCRIPTION OF FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
9. WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
10. REFRIGERANT CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
11. PCB DRIVING DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
12. TROUBLE SHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
13. HOW TO DISASSEMBLE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
14. EXPLODED DIAGRAM AND PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
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Summary of Contents for Daewoo DWB-122CH
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Page 1: Table Of Contents
TABLE OF CONTENTS 1. PRECAUTION................2 2. -
Page 2: Precaution
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. -
Page 4: Names Of Major Components
3.NAMES OF MAJOR COMPONENTS PART NAME PART NAME AIR FILTER BLADE HORIZONTAL GRILLE FRONT AIR VENT CABINET AIR INTAKE BLADE VERTICAL AIR DISCHARGE KNOB THERMOSTAT HEATER LAMP KNOB SELECTOR CABINET DRAIN (Attached inside of Grille Front) -
Page 5: Function Of Main Components
4. FUNCTION OF MAIN COMPONENTS NOTE • ECONOMICAL AND COMFORTABLE USE 1. Properly control the room temperature. 2. Avoid being exposed to direct sunlight. 3. Prevent the wind from entering the room. • FAN & COOLING CONTROL The Fan Control Selector Switch has six positions. Choose one of the speed settings by rotating the fan control Selector Switch to the appropriate position CAUTION When the air conditioner has been performing its cooling operation and is turned “OFF”... - Page 6 • 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.
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Page 7: General Informations
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. • AIR FLOW AROUND UNIT Check indoor grille and outdoor louvers for air flow obstructions. Do not block air flow to and from unit. The outdoor coil should be checked and periodically cleaned for debris that may collect and block unit air flow. - Page 8 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. Assemble “the Cabinet Drain” according to the instruction of page 5 - “How to attach cabinet drain”...
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Page 9: Care And Maintenance
6. CARE AND MAINTENANCE 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. -
Page 10: Electrical Requirements
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. -
Page 11: Description Of Functions
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. •... -
Page 12: Wiring Diagram
9. WIRING DIAGRAM... -
Page 13: Refrigerant Cycle
10. REFRIGERANT CYCLE Evaporator Blower fan Reversing CHECK Capillary Tube Valve VALVE Accumulator MOTOR Compressor Propeller fan Condenser Refrigerant flow(COOLING) Refrigerant flow(HEATING) -
Page 14: Pcb Driving Description
11. PCB DRIVING DESCRIPTION... - Page 15 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).
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Page 16: Trouble Shooting Guide
12. 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 17 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 18 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.
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Page 19: How To Disassemble
13. HOW TO DISASSEMBLE Please refer to the chapter 14 (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. Ass’y Fan Motor 1. - Page 22 DEICER PCB ASS’Y (3104303100) CODE COMPONENTS Q’TY SPECIFICATION REMARK 3108803500 GP881206-2(250) D15G561K– – VARISTOR 15G1561K 3108806100 WAFER SMW250-03 SENSOR DZN4004A– – DIODE 1N4004 TAPE DZN4148FBT DIODE 1N4148 TAPE CCXE1H103M C-CERA 103Z, 50VDC CCXE1H104M C-CERA 104Z, 50VDC CEXE1V108C C-ELEC 1000µF 35V SD CEXE1C107C C-ELEC 100µF 16V SD...
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