Daewoo DWA-120C User manual

CONTENTS

1. Precaution

ÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅ

2. Specification

ÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅ

3. Wiring diagram

ÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅ

4. Structure and parts name

ÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅ

5. Function of main components

ÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅ

6. Trouble shooting guide

ÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅ

7. How to disassemble

ÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅ

8. Refrigerant cycle

ÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅ

9. Exploded diagram and parts list

ÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅÅ

1.PRECAUTION

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, replace it. Consumer must not repair the unit, because it is dangerous.)

4. Use of proper tool.

- You must use the proper tool to repair the unit, and use the measuring appliance adjusted accurately.

5. Damage of electric wire and power cord when servicing.

- Check electric wire and a surely replace a damage electric wire and a damage power cord.

6. Never use connecting the middle of a wire, after cutting the middle of a wire,

- It may cause a fire and trouble.

7. Checking the insulation resistance.

- After you complete the assembly of the unit, surely check the insulation resistance. Confirm that the insulation

resistance of the power line and the ground terminal is over 30MΩby measuring insulation ohmmeter.

8. Checking the ground.

- After checking the ground, servicing it completely.

9. Checking the installation.

- After checking the installation, servicing it completely.

10. Care children.

- When servicing, do not make the children approach the air-conditioner.

2.SPECIFICATION

ITEM MODEL DWA-120C DWB-120C DWA-100C DWB-090C DWA-120CT DWB-120CT DWA-100CT

Function Cooling

Power AC 208V~230V AC 220V~240V AC 208V~230V AC 220V~240V AC 208V~230V AC 220V~240V AC 208V~230V

1ø 60Hz 1ø 50Hz 1ø 60Hz 1ø 50Hz 1ø 60Hz 1ø 50Hz 1ø 60Hz

Capacity W 3,510 3,510 2,930 2,640 3,510 3,510 2,930

BTU/H 12,000 12,000 10,000 9,000 12,000 12,000 10,000

Dehumidification l/H 1.5 1.5 1.3 1.2 1.5 1.5 1.3

Power Input W 1,280 1,280 1,100 900 1,280 1,280 1,100

Electrical Data Running Currunt A 6.1 6.5 5.0 4.1 6.1 6.5 5.0

Starting Current A 30 34 29 24 30 34 23

Type Rotary

Compressor Model RCA120A RCB120A RCA100A RCB090A RCA120A RCB120A EAB090111A

Capacitor 30uF/370VAC 25uF/370VAC 25uF/370VAC 25uF/370VAC 30uF/370VAC 25uF/370VAC 15uF/370VAC

Refrigerant (R-22) 870g 880g 870g 820g 870g 880g 680g

Air Filter WASHABLE

FAN (Indoor side) BLOWER FAN

FAN (Outdoor side) PROPELLER FAN

Unit W¡¿H¡¿D mm 560¡¿385¡¿605

Dimension Packing W¡¿H¡¿D mm 631¡¿474¡¿700

& Weight Net Weight kg 43 43 41 42 43 43 40

Gross Weight kg 48 48 46 47 48 48 45

3.WIRING DIAGRAM

SELECTOR SWITCH

THERMOSTAT

SWITCH

FAN MOTOR

SWING

MOTOR

CAPACITOR

POWER

CORD

GRN/YEL(GRN)

BLU

ORG

YEL

GRN/YEL

RED

BRN

TIMER

MOTOR

BRN(WHT) 2

1BRN

OFF

1(d) 8(4)

2(1)

6(3)

4(2)

L C

FAN LOW MED HI

BLU(BLK)

COMPRESSOR

O.L.P

DWA-120CT

DWB-120CT

DWA-100CT

BLU

RED

YEL

YEL BRN BRN

RED RED

AUTO LOUVER

SWITCH

SELECTOR SWITCH

THERMOSTAT

SWITCH

FAN MOTOR

SWING

MOTOR

CAPACITOR

POWER

CORD

GRN/YEL(GRN)

BLU

ORG

YEL

GRN/YEL

RED

BRN

BRN(WHT)

OFF

1(d) 8(4)

2(1)

6(3)

4(2)

L C

FAN LOW MED HI

BLU(BLK)

COMPRESSOR

O.L.P

DWA-120C

DWB-120C

DWA-100C

DWB-090C

BLU

RED

YEL

YEL BRN BRN

RED RED

AUTO LOUVER

SWITCH

4.STRUCTURE AND PARTS NAME

1. EXTERNAL STRUCTURE AND PARTS NAME

• DWA-120CT/DWB-120CT/DWA-100CT

1. INSERT GRILLE

3. CABINET

9. BRADE

HORIZONTAL 2

10. DOOR VENTILATION

11. AUTO LOUVER SWITCH

2. FRAME GRILLE

6. THERMOSTAT KNOB

7. TIMER KNOB

8. SELECTOR KNOB

4. BLADE HORIZONTAL 1 5. BLADE VERTICAL

1. GRILLE FRONT 8. BLADE

HORIZONTAL 2

9. DOOR VENTILATION

10. AUTO LOUVER SWITCH

5. AIR FILTER

6.THERMOSTAT KNOB

7. SELECTOR KNOB

2. CABINET

3.BLADE HORIZONTAL 1

4.BLADE VERTICAL

• DWA-120C/DWB-120C/DWA-100C/DWB-090C

2. INTERNAL STRUCTURE AND PARTS NAME

1FRONT GRILLE

2SCROLL

3GUIDE TOP

4PLATE ORIFICE

5FAN

6CABINET

5.FUNCTION OF MAIN COMPONENTS

1. THERMOSTAT

The thermostat automatically starts and stops the operation in order to keep the room temperature at a proper level.

and this results in efficient use of power and economical cooling.

2. TIMER (Only DWA-120CT/DWB-120CT/DWA-100CT)

The Timer operation is set by means of the Knob.

TO RELEASE THE TIMER OPERATION.

Turn the timer Knob clockwise and set at continue position. Air conditioner will start normal operation.

TO TURN OFF THE AIR CONDITIONER DURING THE TIMER OPERATION

Set the timer Knob at off position. If the timer Knob is set at a position other than continue, air conditioner is in timer

operation when restarting.

TO CHANGE THE TIMER OPERATION

Set the timer at a desired time. The timer will operate from now to the newly set time.

3. ROTARY SWITCH (SELECTOR)

OFF : This position stops all operations of the air conditioner.

HIGH COOL : This position provides the maximum air flow for rapid cooling, dehumidifying and dust removing

operations (use this position on sultry summer days)

MEDIUM COOL

: This position provides the medium air flow for moderate cooling.

LOW COOL : This position provides the minimum air flow for quiet cooling and dehumidifying operations.

(Suifable for night-time)

FAN : This position provides fan operation alone for circulation and dust removal from room air.

4. AUTO LOUVER SWITCH

When the auto louver switch is turned to "ON" position, two vertical louvers 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.

5. VENT

Brings outside air into room.

6. MOTOR

The motor is used to rotate the indoor and outdoor fan so that the room air can be recirculated.

7. FAN

Blower : The blower draws hot air from the room through the evaporator and then discharges it back into the

room after changing it into the cool air. It circulates the room air.

Propeller : The propeller draws outdoor air through chassis and cools the condenser and then blows the hot air out.

8. CAPACITOR

The capacitor enlarges the difference of phase between main coil and sub coil so that the compressor and Fan Motor

starts well.

9. ACCUMULATOR

The accumulator blocks the inflow of liquid refrigerant & impurities into the compressor.

Trouble Situation Analysis Cause Remedy

Fan motor and

compressor do not run

Switch is in "cool"

position but the

compressor does not run

1. Power failure

2. Power is supplied,

but the equipment

does not run

1. Not operating at all

2. Compressor

3. Frequent start and

stop

1) Power plug

2) Circuit breaker

1) Receptacle

2) Operation switch

3) Cord or lead wire to

the switch

4) Timer

1) Compressor

2) Thermostat

3)Selector switch

4) O.L.P

5) Capacitor

1) Electricity

2) Room

temperature

and outside

temperature

3) Compressor

4) O.L.P

5) Capacitor

1) Thermostat

2) Capacitor

3) O.L.P

1) Power failure

2) Circuit breaker is tripped

3) Power plug is not

contacting

Disconnection

Mechanical failure of

switch

1) Disconnection

2) Malfunction of contact

Disconnection or

burned-out

1) Failure

2) Malfunction

3) Knob is not set to the

proper setting

Failure of malfunction of

contact

1) Disconnection

2) Malfunction of contact

Lack of capacity

Disconnection

1) The voltage exceeded

allowed range

DWA-XXX (253V-187V)

DWB-XXX (264V-198V)

2) Capacity of wire is not

sufficent

Extremely high

Burned-out

Malfunction

Lack of capacity

Malfunction

Lack of capacity

Malfunction

Consult your electric

company

In case of a breaker, turn

it on and off a few times

Replace the power plug

Repair or replace the

receptacle

Replace the cord or lead

wire

Replace the compressor

or connection wire

Replace

Repair or replace

Turn knob for cooler

setting

Repair or replace the

switch

Repair

Repair or replace

Replace

Repair

Consult your electric

company

Check the capacity of

wire

Ventilate well and remove

the heat source

Replace

6.TROUBLE SHOOTING GUIDE

Trouble Situation Analysis Cause Remedy

The compressor runs

but the motor doesn't

run

Both fan motor and

compressor are

running but cooling is

bad

Vibration & Noise

Water leakage into

room

Electric shock

(Leakage of current)

Not cooling at all

Insufficient cooling

1) Fan

2) Fan motor

3) Capacitor

4) Fan motor circuit

Refrigerant system

1) Refrigerant system

2) Filter

3) Heat exchanger of

condenser

1) Installation place

2) Fan

3) Fixing screws

4) Electric

components

Installation

condition

1) Each wiring

Insulation of

components

¡Blocked by others

¡Disconnection or burned-out

electric cord

¡Failure malfunction of contact

¡Disconnection of malfunction of

contact

1) Refrigerant system is choked

2) Compressor failure

3) Leakage of refrigerant gas

1) Refrigerant system is choked

2) Compressor failure

3) Leakage of refrigerant

4) Refrigerant charge is too high

¡Clogged up with dust

1) Fin is clogged up with dust

2) The ventilation is not good

3) The unit is exposed to the

sunlight

4) Other heat source is added in

the room

¡Installation of the unit is

imperfectly done

1) Fan is contacted with

obstacles

2) Fixing bolt

¡Have a screw loose

¡Electrical noise

¡Mounting chassis does not

slant property to outside.

¡The front is lower than rear

side

1) Insulation defect of wiring and

lead wire

2) Leakgae of current due to the

dew or rust

¡Insulation defect

¡Repair

¡Replace the fan motor

¡Replace

¡Check the circuit

¡Repair

¡Recharge refrigerant gas

¡Check and repair refrigerant

system

¡Replace

¡Check part of gas Leakage and

repair

¡Repair and recharge

¡Clean the air filter

¡Clean the unit

¡Shade the unit from the

sunlight

¡Remove the added heat source

¡Install the unit perfectly

¡Remove obstacles

¡Tighten the bolt

¡Tighten the screw

¡Exchange the components

¡Make rear side of the unit lower

than the front

¡Replace the defective parts

7.HOW TO DISASSEMBLE

1 Before service 1. Stop the unit, remove the power cord from the receptacle.

of any part 2. Remove the Frame Grille from the main unit.

3. Remove the Cabinet from the main unit

2 Fan Motor 1. Remove Frame Grille.

- Remove 2 or 3 Knobs.

2. Remove Vent Lever.

3. Remove Auto Louver.

4. Remove wires.

5. Remove Control Box.

6. Remove Guide Top

- Remove 6 screws.

7. Remove Panel Housing.

- Remove 5 screws

8. Remove cover orifice

- Remove 4 screws

9. Remove clamp Motor.

- Remove 4 screws

10. Remove Panel Housing, Scroll, Fan Motor

and Cond. Orifice assembly from Main unit.

11. Remove Blower Fan

- Remove 1 hex-nut

12. Remove Propeller Fan

- Remove 1 hex-nut

13. Remove Scroll.

14. Remove Panel Housing.

15. Remove Orifice Cond.

3 Control Box 1. Same as the procedure 1 to 5 in disassembling Fan Motor.

This manual suits for next models

Table of contents

Other Daewoo Air Conditioner manuals

Popular Air Conditioner manuals by other brands

Spheros

Spheros CC 355 instructions

Bosch

Bosch Climate 5000 SCI 24 CAS/ OU- OUE owner's manual

Panasonic

Panasonic CS-E12HKEW operating instructions

nedis

nedis ACMB1WT7 quick start guide

Samsung

Samsung AR KV Series User & installation manual

Daikin

Daikin FCFV50A Operation manual

Fujitsu

Fujitsu Inverter ASBA30JFC operating manual

Toshiba

Toshiba RAS-M10SMUV-E installation manual

Daikin

Daikin FXLQ20MAVE Operation manual

Hitachi

Hitachi RAS-E24CAK instruction manual

CIAT

CIAT Magister 2 Series Installation, Operation, Commissioning, Maintenance

Bestron

Bestron AAC6000 instruction manual

Hisense

Hisense 7K Use and Installation Instructions

Frigidaire

Frigidaire FFRE0533S1E0 Use & care guide

Samsung

Samsung AS09HM3N user manual

Frigidaire

Frigidaire CRA073PU11 use & care

Soleus Air

Soleus Air GB-PAC-08E4 operating instructions

McQuay

McQuay MCK020A Technical manual