Daewoo DSA-151L, DSA-181L, DSB-181L Service Manual

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Contents

CONTENTS

1. Specifications................................................................................................2

2. Outline and Dimensions .................................................................................3

3. Operation.....................................................................................................5

4. Wiring Diagram..........................................................................................17

5. Refrigerant Cycle.........................................................................................22

6. Control Block Diagram.................................................................................23

7. Electric Circuit Diagram................................................................................24

8. Trouble Shooting..........................................................................................27

9. Disassembly Instructions ...............................................................................43

1) Indoor Unit..............................................................................................43

2) Outdoor Unit...........................................................................................45

3) Exploded Diagram (Indoor Unit) ...............................................................47

4) Exploded Diagram (Outdoor Unit) ............................................................50

5) Control Box Assembly..............................................................................56

1. SPECIFICATIONS

◆DSA-151L/DSA-181L/DSB-181L

MODEL

ITEM

Function Cooling Class T Power Supply Capacity W 4,300 5,100 5,100

Btu/h 15,500 17,500 17,500

Dehumidification 1.98l/h 2.3l/h 2.3l/h

Running Current 6.6A 8.3A 9.8A

Electrical

Data

Compressor

Power Input 1,450W 1,785W 1,950W Starting Current 42A 44A 46A Type Rotary Rotary RECIPRO Model RCA150A001 ECB185211A CRDQ-0200-PFJ Capacitor 30µF/400 VAC

DSA-151L DSA-181L DSB-181L

AC 208~230V, 60Hz AC 208~230V, 60Hz AC 220~240V, 50Hz

Type Indoor Cross Flow Fan

Outdoor Propeller Fan

Capacitor Indoor 1.2µF/400 VAC

Fan

Outdoor 3µF/400 VAC

Motor Model Indoor IC-9425DWKH6A IC-9425DWKH6A IC-9425DWKC5A

Outdoor AM12DPD05 AM12DPD05 AM12DPD04

Refrigerant

(R-22)

Connection

Dimensions Indoor 1,035 x 322 x 205

Control Capillary Charge Q'ty 1,250g 1,450g 1,150g Type Flare OD Indoor 1/4”(6.35mm) (Liquid/Suction) Outdoor 1/2”(12.7mm)

Outdoor 800 x 615 x 277

Net Weight Indoor 11.7Kg 11.7Kg 11.7Kg

Outdoor 43Kg 44Kg 55.8Kg

1035

205

322

453

¿‹ Æ˘˜ ˙`

”ﬁ `⁄˘˙

`⁄„«…–‚ﬁ‚ ˜

‰˙‡»– ‚Ø– ‚–

‰˙‡»– ‚ ˆ…

Connecting Pipe

453

1035

Plate Mounting

REMOCON

Filter-L

INDOOR UNIT

2. OUTLINE AND DIMENSIONS

◆ DSA-151L/DSA-181L/DSB-181L

Grille Insert

Body

Filter-R

277

367

615

800

Inlet

Outlet

Panel Top

Cabinet

Handle

Discharge Grille

OUTDOOR UNIT

◆ DSA-151L/DSA-181L/DSB-181L

Foot

Service Valve

3. OPERATION

Indoor Cover

Electrostatic Filter

Removes dust particles from the air.

Deodorizing Filter

Removes bad smells from the air.

Test/Emergency/ Remote Switch

Slide to select the desired position.

Indicators

Indicate the AC setting.

Remote Sensor

Power PlugLCD Remote Controller

Air Cleaning Filters

Removes dust and prohibits germs.

Cold Air

Air In

Fan Direction

(Up/Down)

Fan Direction

(Left/Right)

OFF

ENTERCANCEL

TIMER RESET

FAN DIR.

FAN SPEED

MODE

SLEEP

ON/OFF

TEMP.

PARTS OF NAME AND FUNCTION

◆ DSA-151L/DSA-181L/DSB-181L

Indoor Unit

◆

ON (Red)

Lights when the operation is going on.

Air clean (Green)

Timer (Yellow)

Lights during the time

reservation mode.

Quick (Red)

Lights during the

time Quick

Mode.

Timer Quick

Airclean

EMERGENCY REMOTE

DSA-151L/DSA-181L/DSB-181L

Indoor Unit Display Switch Panel

■ Remote Control Signal Receiver

This place is the part to receive the signal if it receive the signal, you can hear the signal “beep. beep”.

■ There is a switch panel at inside of Front Panel.

At the time of operating, open the Front Panel.

Emergency switch can be used when the remote controller is lost or Testing.

Remote switch is usually used by remote controller.

◆

DSA-151L/DSA-181L/DSB-181L

Outdoor Unit

AIR IN

AC Cover

Remove cover to access the AC connection from this unit to the indoor unit.

Connection Wire

AIR OUT

Drain Hose

COPPER TUBING

Service Valves

The indoor and outdoor units are connected by copper tubes which are connected here.

Grounding Screw

Ground the unit here.

Ground Wire (Not supplied)

MODE

SLEEP

ON/OFF

TIMER

ENTER/ CANCEL

FAN SPEED

TURBO/MILD

Display

Displays information pertaining to unit.

TURBO/MILD

Press to be colder the unit.

TIMER ENTER/CANCEL Button

Press to enter a timer setting or to cancel timer setting

TIMER ON/OFF Button

Press to set the unit of or on time. (0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24hr)

MODE Button

Press to cycle through the modes (Auto/Quick/Cooling/Fan/Dry)

SLEEP Button

Press to set the unit for the sleep mode.

FAN DIR. Button

Press to select up/down direction for fan.

FAN DIR. Button

Press to select left/right direction for fan.

ON/OFF Button

Press to turn the unit on or off.

TEMPERATURE Buttons

Press to raise or lower the desired temperature.

FAN SPEED Button

Press to select the fan speed (High " ", Middle " ", Low " ").

COVER

Slide down to access most of the remote buttons. Slide down further to access the battery compartment.

AUTO

FAN DIR.

REMOTE CONTROLLER

◆

DSA-151L/DSA-181L/DSB-181L

Name of Each Button

MODE Indicators (Auto/Quick/Cool/Fan/Dehumidifier)

Lights to indicate the mode selected.

TIMER Indicators (Include sleep)

Lights to indicate the timer function mode.

TEMPERATURE & RESERVATION TIME lndicators

Lights to indicate the temperature or time.

FAN DIRECTION Indicators

Lights to indicate the fan direction.

NATURAL Indicator

Lights to indicate the speeds simulating a breeze.

FAN Indicators

Lights to indicate the fan speed.

AUTO

+–

REMOTE CONTROLLER DISPLAY

◆

DSA-151L/DSA-181L/DSB-181L

Replacing Batteries

Open the cover after pressing the arrow

direction and pulling out.

Put the drycell by

direction.

–

Close the cover after pushing into arrow direction.

Unit ON

Unit OFF

SET Time

HOUR

OFF

Unit ON

Unit OFF

SET Time

HOUR

OFF

COMP (ON)

(COOLING)

COMP (OFF)

-1˚C 0˚C

Temperature (RT-DT)

DESCRIPTION OF FUNCTIONS

OFF-Timer

If you set time in OFF-Timer Mode, the unit will stop at the set time.

ON-Timer

If you set time in ON-Timer Mode, the unit will run at the set time.

Control of Room Temperature

(1) Range of setting temperature: 18~32°C (2) Setting temperature: Operating temperature of compressor

❇ Room temperatrue

< setting temperature

(

Compressor OFF Room temperature

> setting temperafure

(

Compressor ON

(3) During the time of test operating, Fan (Indoor , Outdoor) and Compressor is running regardless of room temperature.

Buzzer

If the Indoor Unit Display receive the signal of Remote Controller , y ou can hear the signal "beep –" or "beep , beep".

Fan Speed (Indoor Unit)

+1°C+2°C (RT-DT)

(1) Motor speed (high speed, normal speed, low speed). (2) Remote controller setting fan speed. (Auto , L, M, H, Natural) (3) Relation of operating mode between fan speed.

FAN ONLY COOL

H HHXHH MMMXMX

LLLXLX

Auto X Auto Auto Auto X

Natural Natural Natural X Natural X

DEHUMI-

DIFICATION

AUTO Quick

(4) Automatic Operation If the unit is set in 'AUT O' mode , the unit operates automatically according to the room temperature to keep the room temperature comfortable.

(COOLING)

• DSA-151L/DSA-181L/DSB-181L

Sleep Mode

0 0.5 1.0 HOUR

SET TIME

Desired

Difference desired temperature between room temperature (°C)

0.5°C

Temperature

(1) When you are going to sleep , select sleep s witch and the unit controls the room to the desired temper ature.

(The unit will not operate after 4 hour)

(2) For changing the temperature.

(3) To cancel sleep mode, press the SLEEP button again or press the MODE button once.: the SLEEP

indicator will disappear in the display.

Emergency Operation

(1) When the remote controller is lost, damaged or the battery is discharged, the Emergency operation can be

used to run the unit.

(2) The setting conditions of Emergency operation are as follows.

• Operation mode: AUTO

• Preset temperature: 26°C

• Fan speed: AUT O

Frost Prevention of Indoor Unit

0°C7°C

Compressor and Outdoor Fan

OFF

Set Speed

Indoor Fan

When the unit operates at low ambient temperature, frost may appear on the Ev aporator. When the indoor coil temperature is lower than 0°C at the end of 10 minutes of continuous compressor operation from the start, the microcomputer of the unit stops the compressor to protect the unit from the frost. The control procedure for indoor coil freeze protection.

1) The compressor and outdoor fan turn off.

2) Indoor fan operates according to user set speed.

3) The normal operation returns when the indoor coil temperature is higher than 7°C or equal to 7°C.

(Indoor coil temperature)

3 min. 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.

Indoor Fan Motor Starting

When indoor fan motor is on, it alwa ys starts at normal speed and then it operates desired speed.

Auto Mode

-1 0

°C

OFF

(Room temperature Desired temperature)

0+1+2

°C

(Room temerature Desired temperature)

(1) When the room temperature is higher than 28°C (Cooling Mode)

! Compressor and lndoor F an

@ The fan will automatically operate as f ollowing Figure

(2) When the room temperature is lower than 28°C and higher than 22°C (Dehumidification Mode). (3) When the room temperature is lower than 22°C (F an only).

-1

OFF

(Room temperature-18˚C)

Dehumidification Mode

!Desired temperature < Room temperature

Outdoor Fan, Compressor : ON Indoor Fan : Low speed

@ Desired temperature Room temperature

Compressor : 3 min/ON, 5 min/OFF Indoor Fan : 3 min 30 second/ON, 4 min 30 second/OFF Fan Speed : Low speed

# Room temperature 18°C

Compressor : OFF Indoor Fan : 1 min/ON, 7 min/OFF Fan speed : Low speed

Air Discharge Direction

(1) When you turn on the unit, the flaps move to the position of keeping the room temperature comfortable. (2) The air discharge direction is below.

Up/Down On/Off

Left/Right On/Off

Quick Mode (Powerful Cooling)

(1) Cooling condition

!Fan Speed: High speed @ Air discharge direction: Fixed # Set temperature: 18°C (Fixed) $ Operation Mode: Cooling Mode % Compressor and Outdoor Fan

Self-Diagnostic Function

The control will contain diagnostic test to verify the integrity of the system. (1)Error Code Display Pattern

!ON LAMP: ON (Red) LED ON/OFF @ Error Code (Display in Emergency Mode only)

ERROR CODE

DISPLAY PATTEN ERROR CONTENTS

8 seconds

0.5 second

8 seconds

0.5 second

Room air thermistor, connector Indoor coil thermistor, connector

Compressor, Electrical parts of comp. Gas leak

4. WIRING DIAGRAM

◆ DSA-151L

OUTDOOR UNIT

INDOOR UNIT

◆ DSA-181L/DSB-181L

MAIN ELECTRIC PARTS

◆ DSA-151L

Fan Motor 3964330200 IC-9425 KH 6C 1 Fan Motor Capacitor 3106995010 1.2µF 450VAC 0.2A 1 Fuse 5FVGB0302R 250V 3A S/B 1

PART NAME PART CODE SPEC. QUANTITY REMARK

Indoor

Unit

Outdoor

Unit

Fuse 5FVGD0402S 250V 4A 6ITS 1 Transformer 5EPK533110 220V/15V 1 Stepping Motor 1 3108004310 MP28GA (L=1300mm) 1 Stepping Motor 2 3108004300 MP-28GA (L=400mm) 2 Terminal Block 3108912320 SN-DBW-4P 1

Compressor 3100030AE0 RCA-150A001 1 Capacitor Dual 3109500100 370V 30/3µF 1 Fan Motor 3964320430 AM12DPD05 1 Power Relay 5SC0202700 G7L-2A-TUB 1 Terminal Block 3108912320 SN-DBW-4P 1

◆ DSA-181L

Fan Motor 3964330200 IC-9425 KH 6C 1 Fan Motor Capacitor 3106995010 1.2µF 450VAC 0.2A 1 Fuse 5FVGB0302R 250V 3A S/B 1

PART NAME PART CODE SPEC. QUANTITY REMARK

Indoor

Unit

Outdoor

Unit

Fuse 5FVGD0402S 250V 4A 6ITS 1 Transformer 5EPK533110 220V/15V 1 Stepping Motor 1 3108004310 MP28GA (L=1300mm) 1 Stepping Motor 2 3108004300 MP-28GA (L=400mm) 2 Terminal Block 3108912320 SN-DBW-4P 1

Compressor 3107100000 ECB185211A 1 Capacitor Dual 3109500100 370V 30/3µF 1 Fan Motor 3964320430 AM12DPD05 1 Power Relay 5SC0202700 G7L-2A-TUB 1 Terminal Block 3108912320 SN-DBW-4P 1

◆ DSB-181L

Fan Motor 3108000300 IC-9425DWKC5C 1 Fan Motor Capacitor 3106995010 1.2µF 450VAC 0.2A 1

PART NAME PART CODE SPEC. QUANTITY REMARK

Indoor

Unit

Outdoor

Unit

3106901100 1.2µF 400VAC 1 Fuse 5FVGB0302R 250V 3A S/B 1 Fuse 5FVGD0402S 250V 4A 6ITS 1 Transformer 5EPV633100 220V/18.3V 1 Stepping Motor 1 3108004310 MP28GA (L=1300mm) 1 Stepping Motor 2 3108004300 MP28GA (L=400mm) 2 Terminal Block 3108912320 SN-DBW-4P 1

3108911600 1000-4DS 1

Compressor 3107120000 CRDQ-0200-PFJ 1 Capacitor Dual 3109500100 370V 30/3µF 1

3104500100 400V 30/3µF 1 Fan Motor 3108000400 AM12DPD04 1 Power Relay 5SC0202700 G7L-2A-TUB 1 Terminal Block 3108912320 SN-DBW-4P 1

For VDE Appliance

For NON Appliance

For VDE Appliance

5. REFRIGERANT CYCLE

INDOOR UNIT

Evaporator

Cross flow fan

Connecting pipe

Capillary tube

Dryer

Condenser

Propeller fan

OUTDOOR UNIT

Refrigerant flow

Service valve

Accumulator

Compressor

Note) If the pipe length exceeds the standard length, add 30g of refrigerant per extra meter .

DSA-181L

Contents

Model Name

DSA-151L

DSB-181L

Capillary T ube

Charge Quantity

ID2.0Ø x OD3.2Ø x L1200

1300 g

ID1.78Ø x OD3.2Ø x L600

1500 g

ID2.0Ø x OD3.2Ø x L650

1200 g

6. CONTROL BLOCK DIAGRAM

Relay RL1

Indoor fan

motor

Power

Relay

Compressor

Outdoor

fan motor

TRIAC

DC12V

Operating Mode Fan Speed Timer Selection Flap Position

Unit on lamp

Room air temp. Indoor coil temp.

Quick lamp Air-clean lamp

Remote Emergency

Operation

Signal receiver

Timer lamp

A/D converter lnitialization

Clock generation

DC power supply

Circuit for

relay driving

Circuit for

TRIAC control

Transformer

Circuit for signal receiver

MICRO

CONTROLLER

Beeper

Circuit for motor driving

Stepping motor 1,2

Temp. Setting ON/OFF SLEEP Turbo/MILD

AC220V

DC5V

◆ DSA-151L/DSA-181L/DSB-181L

1 2 3

I.D.C

COMP

POWER RELAY

TERMINAL BLOCK

TRANS-

FORMER

CMC

Indoor Unit

Fan Motor

SWING

MOTOR

SWING

MOTOR2

ROOM AIR

SENSOR

INDOOR COIL

SENSOR

SWING

MOTOR1

Display Part

Control Part

Signal Receiver

Pemote Controller

LN Y

COMP

FMC

7. ELECTRIC CIRCUIT DIAGRAM

ELECTRIC CIRCUIT DIAGRAM

◆ DSA-151L/DSA-181L/DSB-181L

Description

1. After the power ON/OFF button is pressed once, the rela y and triac are turned ON or OFF per the remote control setpoint. – TRIAC is controlled per the fan speed selection. – RELAY is controlled per the operation mode selection.

2. If the power ON/OFF button is pressed once more, the rela y and triac are turn off and the unit stops operation.

3. The unit turns on or off according to the temperature setpoint by sensing the room air temperature through thermistor.

4. If the fan speed selection is set to the auto position, the fan speed is automatically controlled according to the temperature differance between room temperature and temperature setpoint.

PCB CIRCUIT DIAGRAM

8. TROUBLE SHOOTING

Outdoor unit does

not run?(note. 1)

Does

the compressor run

normally?

Indoor unit does

not run(note 1)

Check the failure

code according to

the self diagnostic

(note 2)

Is the unit

display

mormal?

check the failure

code according to

the self-diagonostic

(note 2)

Normal

check the

connecting

point of

magnetic

contactor

YES

Trouble

Is the power

applied to the

unit

Is the

power normal?

check the voltage between

L & N of terminal

block

press the power ON/OFF

button on remote controller

Does the

beeper beep two

times?

Is the display

all off?

• Check the connector on display

PCB connected to control PCB

• Check the display PCB itself

Check power supply mains

or interconnection wires

Check the wiring of indoor

Is the

switch position

on switch pannel at

"Remote"

Does

control PCB

status LED repeat one

second "on and

off"?

• control PCB fault

• Micom or reset

IC fault

• Check the remote signal receiver

• Check the connection between signal

receiver and control PCB

Place the switch

position to the

"Remote" and then

Check it once

YES

Is the

unit display

normal?

Note 1)

! Neither indoor unit nor outdoor unit runs.

Check the following points first. (There are f ollo wing case in normal operation) a. Is the timer mode set the "timer ON". b. Is the timer mode set the "timer-OFF" and the time had passed?

@ Neither outdoor fan nor compressor runs while indoor fan runs.

Check following points first. (There are f ollo wing cases in normal operation) a. Is the temperature set point suitable? b. Has the 3 minutes time guard f or compressor operated?

Note 2) Please refer to page 16, Self Diagnostic-function.

Self-Diagnostic Function

◆ DSA-151L/DSA-181L/DSB-181L

1) Error Code 1

! 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.

2) Error Code 3 (Display Emergency mode)

! When the compressor do not run.

i) Check the voltage between and of terminal block.

(Indoor Unit, Outdoor Unit) ii) Check connecting wire of indoor unit and outdoor unit. iii)Check relay KI on power P.C.B

@ Check fixing of indoor coil thermistor. # Check the GAS LEAKAGE of the pipe.

Neither Indoor Unit nor Outdoor Unit Runs

The power is applied to the unit

Check the voltage between and

of terminal block

Rating voltage more than 90%

Check the indoor unit display

is the display all off?

YES

Press the ON/OFF switch of

Remote Control

Is the indoor unit display all off?

Pull out the power plug

and then insert the power plug

after 5 seconds

Rating voltage

under 90%

NO NO

Check the

Breaker or Fuse

Self Diagnostic

function is ON

YES

Check according to

self Diagnostic function

Control P.C.B defect

Control P.C.B is normal

Recheck from the beginning

Outdoor Unit Runs but Indoor Unit Do Not Run

Check rotation of indoor fan

Rotate indoor fan by hand

YES

Check input Voltage of F an

Motor connector at power P.C.B

Rating V oltage more than 90%

Check the winding resistance of

Indoor unit fan motor

Normal

Check the fan motor capacitor

Rating voltage

under 90%

Open or short

Check the F an Motor

bearing and fan

Check the power P.C.B.

The circuit for triac control

Change of fan motor

Check the connecting wire of

indoor fan motor

Run again

Outdoor Fan Do Not Run

Check the voltage between and

of indoor unit terminal

Check the voltage between and

of outdoor unit terminal

Check the voltage between and

of outdoor unit terminal

Check outdoor fan motor individually

Rating voltage

under 90%

Rating voltage

under 90%

Rating voltage

under 90%

Check the wiring

and voltage within doors

Check the

connecting wire

Check the

connecting wire

Only Compressor Do not Run

- Check the following at cooling mode

Check the voltage between and

of indoor unit terminal

Rating voltage more than 90%

Check the voltage between and

of outdoor unit terminal

Rating voltage more than 90%

Check the magnetic contactor

Check the wiring of outdoor unit

Check the compressor

(Check the winding resistance)

Rating voltage less than 90%

Open or Short

Check the control P.C.B

the circuit for relay

driving.

Check the connecting

wire between indoor

and outdoor.

Change the magnetic

contactor.

Change the

compressor.

Check the compressor capacitor

Outdoor Fan and Compressor Do Not Run

Check the voltage between and

of indoor unit terminal

Check the voltage between and

of outdoor unit terminal

Check the voltage between and

of outdoor unit terminal

Check compressor ,

outdoor fan motor individually

Rating voltage

under 90%

Rating voltage

under 90%

Rating voltage

under 90%

Check the wiring

and voltage

within doors

Check the

connecting wire

Check the

connecting wire

PCB DRIVING DESCRIPTION

Power Supply (1)

7805 7812

AC 220V

VAR

CC3

0.1 CC2

0.1

CE2

470/16V

CC1

CE3

100/25V

DC 12V

0.1µF/250V BD1

1000/35V

CE1

POWER

TRANS

DESCRIPTION

DC Po wer Supply in circuit needs +12V and +5V. +12V is used for Compressor Driving Relay, T riac Driving Photo Triac, Buzzer Driving Swing, Sweep Motor, and LED Display. AC voltage of secondary Power Transformer is rectified by Bridge Diode, and it is filtering by Main Condensor CE1. Filtered DC voltage is about +17V, is regulated +12V DC by Regulator IC7812. And it is regulated +5V DC by Regulator IC7805. V AR is surge filter and CE2, CE3, CC2, CC3 is Noise filter .

Oscillation (2)

X-TAL

8MHz

VDD-10%

VSS+10%

DESCRIPTION

Oscillatory Frequency drive Micom, it is made up 8MHz X-TAL oscillatory F reqency. Ocillatory wave is as follo wing Fig 2-1.

Fig 2-1

Sensor(3)

R18

12.7K

R20

12.7K

CN8

R19

CC8

CC9

R21

EVA: SENSOR

ROOM: SENSOR

1 2 3 4

MICOM

Room temperature and Evaporator temperature Sensor Input

DESCRIPTION

Number 24, 25 of Micom is Terminal of A/D conv ertor Input. Room temperature and Evaporator temperature is sensing by change of Thermister Resistance, Micom is put in 5V by ratio between R18 (12.7KΩ) and R20 (12.7KΩ). Relation between temperature and voltage is follo wing Table 3-1. CC8, CC9 is Noise filter.

Voltage (V)

No. 24, 25

Temperature

(°C)

-5 1.12 0 1.37

15 2.22 25 2.79 40 3.52

Table 3-1

KID 65004

R4 1K

12V

R5 100 L1

TLP560J

TRIAC

SM3 JZ47

AC220V

0.1µF/120OHM

TO MOTOR

SN1

MICOM

T riac Driving (4)

AC220V

TRIGGER

MOTOR

INPUT

LOW SPEED MEDIUM SPEED HIGH SPEED

DESCRIPTION

Number 38 Terminal of Micom is put out Pulse Output, by wa y of Buff er it is driving Photo Triac TLP560 and then Triac SM3JZ47 is supplied Trigger Signal. Trigger T est of Triac is detected Zero Cross Part of AC input and it is triggered from Zero Cross part to Time delay part according to Fan Speed. (Ref. Fig 4-1) SN1 is Snub ber .

LOW SPEED

MEDIUM SPEED

HIGH SPEED

Fig 4-1

Selecting Mode (5)

CC6

0.01

R15 1K

R16 10K

CN1

EMERGENCY S/W

MICOM

(SELECT S/W INPUT, OUTPUT)

DESCRIPTION

There are three Mode according to SW position as following Table 6-1.

POSITION MODE

Close EMERGENCY

Open REMOTE

Table 6-1

Micom Power Supply (6)

Vcc 5V

10µF/16V

CE2

CC1 104

MICOM

DESCRIPTION

MICOM Po wer is supplied 5V at Number 42 using Digital, Number 22 using Reference of A/D Conv erter . CE2 is Ripple filter and CC1 is Noise filter.

Reset (7)

R9 1K

CC3 104

R10

5.6K

CE1

4.7µF/50

7042P

MICOM

RESET IC

4.2V

POWER

Vcc (+5V)

DELAY TIME

FOR POWER ON

RESET

DESCRIPTION

V oltage less than about 0.8V put in Micom Terminal of Number 18 and then Micom reset. Reset IC detect Po wer ON and Voltage less than 4.2V , and then send Reset Signal. There is a Manual Reset S/W to reset manually if necessary .

MICOM

CA1

JS3

JS5

R14

Test

R13 1K

R12 1K

R11 1K

JS4

Function Selecting (8)

DESCRIPTION

Selecting Function is as following Table 9-1.

JS6 JS5 JS4 JS3

SHORT

Skip Mild

Heat

50Hz

T ab le 9-1

OPEN

Comp err detect

High Cool

60Hz

9. DISASSEMBLY INSTRUCTIONS

INDOOR UNIT

PROCEDURES PHOTOS

1. Stop the Air conditioner and disconnect the power cord from the wall outlet.

2. Removing the Insert Grille and Frame . ! Loosen three screws f or fixing the the Insert Grille and Frame.

(Pull out the frame cap before loosening three screws) (Fig 1)

@ Loosen three screws at the Drain Pan. # Remove the Insert Grille and Frame.

3. Removing the Control Box. After doing above procedures:

! Disconnect indoor room and coil thermistors. (Fig 3) @ Disconnect the fan motor lead wire from connection at the main

PCB. (Fig 3)

# Disconnect the swing motor connection wire. $ Loosen a screw for fixing ground wire. % Loosen two screws for fixing the body.

4. Removing the Drain Pan. After doing above procedures:

! Loosen a screw f or fixing body. (Fig 4) @ Unhook the right part of Drain Pan.

Fig 1

Fig 2

Fig 3

Fig 4

5. Removing the Indoor Coil. After doing above procedures:

! Loosen f our screws f or fixing indoor coil at left and right side. (Fig 5) @ Loosen a screw for fixing the brac ket tube at the bac k side. (Fig 6) # Remove the indoor coil. (Fig. 6-1)

6. Removing the fan motor . After doing above procedures: ! Loosen two scre ws f or fixing holder moter at left and right side.

(Fig 7, 8)

@ Loosen a screw for fixing f an motor and blo wer. # Renove the f an motor .

Fig 5

Fig 6

Fig 6-1

PROCEDURES PHOTOS

7. Removing the blower. After doing above procedures:

! Loosen a screw f or fixing holder bearing. @ Remove the blo wer.

Fig 7

Fig 8

OUTDOOR UNIT

¡ DSA-151L

PROCEDURES PHOTOS

1. Basic Procedures

! Stop the air conditioner and pull out power plug from w all outlet. @ Remov e CABINET T OP COVER. (Loosen ten screws) # Remov e CABINET SIDE CO VER. (Loosen six screws) $ Remov e CABINET FRONT. (Loosen six screws)

2. Removing Fan Motor (Fig 4)

! Do basic procedure. (!~$) @ Loosen nut for fixing f an by spanner. # Remov e spring washer and plain washer. $ Remov e f an. % Remov e f an stopper. ^ Disconnect Motor lead wire from control box. & Loosen four screws for fixing Motor brack et and then remov e

the Motor.

Fig 1

Fig 2

3. Removing Motor Capacitor and Compressor Capacitor

! Do basic procedure.(!~$) @ Diconnect lead wire from the Motor capacitor and compressor

capacitor.

# Loosen two screws f or fixing the capacitor brac k et. $ Remov e Motor capacitor and compressor capacitor .

4. Removing Magnetic Contactor. (Fig 5)

! Do basic procedure !~@ . @ Disconnect lead wire from Magnetic Contactor. # Remov e Magnetic contactor . (Loosen f our scre ws)

5. Removing Overload Protector . (Fig 6,7)

! Do basic procedure !~#. @ Remove terminal cover. # Disconnect lead wire from overload protector. $ Remove ov erload protector .

Fig 3

Fig 4

Fig 5

Fig 6

Fig 7

¡ DSA-181L/DSB-181L

PROCEDURES PHOTOS

1. Basic Procedures

2. Removing F an Motor (Fig 4)

the Motor.

Fig 1

Fig 2

3. Removing Motor Capacitor and Compressor Capacitor.

! Do basic procedure.(!~$) @ Diconnect lead wire from the Motor capacitor and compressor

capacitor.

# Loosen two screws f or fixing the capacitor brac k et. $ Remov e Motor capacitor and compressor capacitor .

4. Removing Magnetic Contactor. (Fig 5)

! Do basic procedure !~@ . @ Disconnect lead wire from Magnetic Contactor. ! Remov e Magnetic contactor . (Loosen f our scre ws)

Fig 3

Fig 4

Fig 5

EXPLODED DIAGRAM (Indoor Unit)

¡ DSA-151L/DSA-181L/DSB-181L

¡ DSA-151L/DSA181L/DSB-181L Parts List (Indoor Unit)

No PART CODE PART NAME Q'TY SPEC REMARK

1 3100400101 BOD Y 1 ABS 2 3107600100 FLAP TOP 1 ABS 3 3107600200 FLAP UNDER 1 ABS 4 3106500400 BLADE VER 16 ABS 5 3103000500 HOLDER MOTOR R 1 ABS 6 3103000700 HOLDER BEARING 1 ABS 7 3103000600 HOLDER MOTOR L 1 ABS 8 3106400100 BEARING OILESS 1 9 3101800200 FAN CR OSS FLO W 1 Ø100X861L

10 3102400800 GRILLE LATCH 3 POM

3108000230 MOTOR ASS’Y 1 IC-9425 DWKC 5C

3108000230 MOTOR ASS’Y 1 IC-9425KH 6C 12 3102400900 GRILLE INSERT 1 ABS 13 3100501000 BOX CONTROL 1 ABS (V0) 14 3107410000 EVA ASS’Y 1 15 3101930010 FILTER ELECTR O ASS’Y 1 16 3101940010 FILTER CARBON ASS’Y 1 17 3101401300 COVER TERMINAL BLOCK 1 ABS 18 3108100100 P AN DRAIN 1 ABS 19 3102200200 FRAME GRILLE 1 ABS 20 3100000100 FILTER PRE R ASS’Y 1

DSB-181L

DSA-151L/181L

No PART CODE PART NAME Q'TY SPEC REMARK

21 3100000200 FILTER PRE L ASS’Y 1 22 3102900100 HINGE R-A 1 POM 23 3102900300 HINGE L-A 1 POM 24 3100001000 M-PCB ASS’Y 1 25 3107800100 LINK VER CAM 1 P.O.M 26 3104395400 F-PCB ASS’Y 1 27 3108004300 MOTOR STEPPING 2

MP28GA/GSP-24SW-06/ST-28 28 3108912320 TERMINAL BLOCK 1 DBW -4P 29 3107400300 EVA BRKT L 1 SGCC T1.0 30 3107800200 LINK VER A 1 ABS 31 3107800400 LINK VER C 1 ABS 32 3107500200 EMBLEM 1 URET ANE 33 3105500400 PLT WINDO W SWITCH 1 34 3104500300 PLATE MOUNTING 1 SGCC T0.8 35 3108004310 MOTOR STEPPING 1

MP28GA/GSP-24SW-06/ST-28

L=400mm

L=1300mm

EXPLODED DIAGRAM (Outdoor Unit)

¡ DSA-151L/DSA-181L

¡ DSA-151L/DSA-181L Parts List (Outdoor Unit)

No PART CODE PART NAME Q'TY SPEC REMARK

1 3100800101 CAB BACK 1 SECC T1.0 2 3104200500 PANEL T OP 1 SECC T1.0 3 3100800201 CAB FRONT 1 SECC T1.0 4 3101800100 FAN 1 ABS + G/F 5 3102400710 GRILLE DISCHARGE 1 PP 6 3100800301 CAB SIDE 1 SECC T1.0 7 3100300301 PAN BASE 1 SECC T1.6 8 3105300100 SUPPORTER MOT OR 1 SGCC T1.0

9 3104200601 PANEL CONTROL 1 SGCC T1.0 10 3108000520 MOTOR ODU 1 220V/60Hz 11 3106800010 CONDENSER ASS’Y 1 12 7391800011 NUT HEX 1 13 3102600100 HANDLE R 1 PP 14 3104500600 PLATE PARTITION 1 SGCC T1.0 15 310061000P BRACKET SERVICE ASS’Y 1 16 3102100200 FOOT 4 SECC T2.0 17 3102600200 HANDLE L 1 PP 18 3101200200 CLAMP WIRE 2 SGCC T1.0 19 3101200100 CLAMP CAPA CITOR 1 SGCC T0.8 20 3100016300 PIPE SUCTION ASS’Y 1 CU ¡¨T0.8

3100016700 PIPE SUCTION ASS’Y 1 CU ¡¨T0.8

DSA-151L DSA-181L

No PART CODE PART NAME Q'TY SPEC REMARK

3100016200 PIPE DISCHARGE ASS’Y 1 CU

T0.8

¡¨

3100016600 PIPE DISCHARGE ASS’Y 1 CU

T0.8

¡¨

22 3104400700 PIPE FILTER 1 23 3104400600 PIPE TURN 1 CU 24 3104400800 PIPE CAPILLARY 1 CU

T0.8

¡¨

3100030AE0 COMPRESSOR ASS’Y 1 RCA150A001

3107120010 COMPRESSOR ASS’Y 1 ECB 185211A 26 3105400200 SERVICE V ALVE-LIQ 1 27 3105400100 SERVICE V ALVE-GAS 1

¡¨

28 5SC0202700 POWER RELA Y 1 G7L-2A-TUB 29 3108912320 TERMINAL BLOCK 1 SN-DBW-4P

DSA-151L DSA-181L

30 3102101000 FOOT CUSHION 4 NR 31 3107140010 COMP BOLT 3 32 3101500200 RUBBER CUSHION 3 33 7400208411 WASHER PLAIN 3 34 7392801211 NUT LOCK 3 35 7342602011 BOLT HEX 4 36 7112501211 SCREW TAPPING 4 37 8112401211 SCREW TAPPING 10

¡ DSB-181L

¡ DSB-181L Parts List (Outdoor Unit)

No PART CODE PART NAME Q'TY SPEC REMARK

3100039210 P ANEL CONTROL 1 SGCC T1.0 10 3108000400 MOTOR ODU 1 220V/50Hz 11 3106800020 CONDENSER ASS’Y 1 12 7391800011 NUT HEX 1 13 3102600100 HANDLE R 1 PP 14 3104500600 PLATE PARTITION 1 SGCC T1.0 15 3100600000 BRACKET SERVICE ASS’Y 1 16 3102100200 FOOT 4 SECC T2.0 17 3102600200 HANDLE L 1 PP 18 3101200200 CLAMP WIRE 2 SGCC T1.0

3101202000 CLAMP CORD 1 NYLON 66

DSB-181L for VDE Appliance

19 3101200100 CLAMP CAPA CITOR 1 SGCC T0.8 20 3100016700 PIPE SUCTION ASS’Y 1 CU ¡¨T0.8

No PART CODE PART NAME Q'TY SPEC REMARK

21 3100016400 PIPE DISCHARGE ASS’Y 1 CU

T0.8

¡¨

22 3104400700 PIPE FILTER 1 23 3104400600 PIPE TURN 1 CU 24 3104400800 PIPE CAPILLARY 1 CU

T0.8

¡¨

25 3107120000 COMPRESSOR 1 CRDQ-0200-PFJ 26 3105400200 SERVICE V ALVE-LIQ 1 27 3105400100 SERVICE V ALVE-GAS 1

¡¨

28 5SC0202700 POWER RELA Y 1 G7L-2A-TUB 29 3108912320 TERMINAL BLOCK 1 SN-DBW-4P 30 3102101000 FOOT CUSHION 4 NR 31 3106000110 BOLT COMP 3 32 3101500200 RUBBER CUSHION 3 33 7400208041 WASHER PLAIN 3 34 7392801211 NUT HEX 3 35 7342602011 BOLT HEX 4

CONTROL BOX ASSEMBLY

¡ DSA-151L/DSA-181L/DSB-181L

1 CONTROL BOX ASSY

¡ DSA-151L/DSA-181L/DSB-181L

No P AR T NAME SPEC Q’TY P AR T CODE REMARK

DSA-151L/DSA-181L 1 3100058320

1 CONTROL BO X ASS’Y

DSB-181L 1 3100058210

2 BOX CONTR OL-2 ABS (VERSION2) 1 3100506900

DWA-5423 1 5EPK633110

3 PCB TRANS ASS’Y

DWA-220V 1 5EPV633110 4 SCREW TAPPING T2S TRS 4X12 MFZN 3 7122401211 5 CAPACITOR IDM EAF-45125 (1.2µF/450V) 1 3106900210 6 SCREW TAPPING T2S TRS 4X24 MFZN 1 7141402411 7 TERMINAL BLOCK SN-DBW-4P 1 3108912320 8 SCREW TAPPING T2S TRS 3X16 MFZN 2 7111301611 9 HARNESS POWER UL1015 #16/18 1 3102704010

10 HARNESS EARTH UL1015 #18 1 3102797910 11 HARNESS COMP SIGNAL UL1015 #18 1 3102704410 12 POWER CORDWS-93 (250V 10/16A) 1 31013A24B1 13 CABLE CORD DA-5N 1 3101200300

DSA-151L/DSA-181L 1 3104300120

14 CONTROL PCB ASS’Y

DSB-181L (COOL/50Hz) 1 3104300110

15 HARNESS CONNECTING UL 1007 #26 1 3102704900 16 POWER PCB ASS’Y DSA-151L/DSA-181L/DSB-181L 1 3104300210 17 LED PCB ASS’Y 15/18K 1 3104300300 18 SWITCH PCB ASS’Y 15/18K 1 3104300400 19 SENSOR ID ASS’Y PEM-KD43C-D1 1 3104896000 20 HARNESS LED PCB UL 1007 #26 1 3102704510 21 HARNESS SWITCH PCB UL 1007 #26 1 3102707000 22 KNOB SWITCH ABS 1 3103400200

DAEW OO ELECTRONICS CO., LTD.

686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX: DWELEC K28177-8 CABLE: “DAEWOOELEC” FAX: 02) 360-8184 TEL: 02) 360-8182/8178~9

http://www.dwe. daewoo.co.kr

PRINTED DATE: APR.1999

Service Manual

Model: DSA-151L

DSA-181L DSB-181L

DAEWOO ELECTRONICS CO., LTD. OVERSEAS SERVICE DEFT.

Daewoo DSA-151L, DSA-181L, DSB-181L Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual