DAEWOO DSA-240L-R Service Manual

Manual de Servicio

Acondicionador de Aire Tipo Split

Modelo: DSA-240L-R

CONTENTS

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

2. Outline and Dimensions.........................................................................................4

3. Operation.................................................................................................................6

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

5. Refrigerant Cycle..................................................................................................20

6. Control Block Diagram.........................................................................................21

7. Electric Circuit Diagram........................................................................................23

8. Trouble Shooting...................................................................................................26

9. Key Components of Electronic Circuit.................................................................48

10. Disassembly Instructions .....................................................................................51

1) Indoor Unit........................................................................................................51

2) Outdoor Unit.....................................................................................................52

3) Exploded Diagram (Indoor Unit)......................................................................53

4) Exploded Diagram (Outdoor Unit)...................................................................56

5) Control Box Assembly......................................................................................60

Contents

2

1. SPECIFIC A TIONS

MODEL

DSA-240L-R

ITEM

Function Cooling
Class T
Power AC 220V/ 60Hz
Capacity W 7,030

Btu/h 24,000

Dehumidification l/h 3.2

Running Current A 11.7
Power Input W 2,500
Type Recipro
Model AWG5530EXC
Capacitor 45µF/ 400VAC
Division Indoor Unit Outdoor Unit
Type Cross flow fan Propeller fan
Capacitor 2µF 400VAC 5µF 400VAC
Motor Model Number IC9430DWKG7A 05ME986DERC
Control Capillary
Charge Q'ty g 2,100
Type Flare
OD

(Liquid/Suction)

in(mm) 3/8 (9.52) 5/8 (15.9)
Dimensions (W x H x D) mm 1080 x 298 x 200 872 x 675 x 325
Net Weight kg 14.7 64

Electrical

Data

Compressor

Fan

Motor

Refrigerant

(R-22)

Connection

* DSA-240L-R

3

MODEL

DSA-240LH-R

ITEM

Function Cooling & Heating
Class T
Power AC 220V/ 60Hz
Capacity W 7,030

Btu/h 24,000

Dehumidification l/h 2.67

Running Current A 11.5 / 11.8
Power Input W 2,500 / 2,550
Type Recipro
Model AWG5530EXC
Capacitor 45µF/ 400VAC
Division Indoor Unit Outdoor Unit
Type Cross flow fan Propeller fan
Capacitor 2µF 400VAC 5µF 400VAC
Motor Model Number IC9430DWKG7A 05ME986DERC
Control Capillary
Charge Q'ty g 2,200
Type Flare
OD

(Liquid/Suction)

in(mm) 3/8 (9.52) 5/8 (15.9)
Dimensions (W x H x D) mm 1080 x 298 x 200 872 x 675 x 325
Net Weight kg 14.7 64

Electrical

Data

Compressor

Fan

Motor

Refrigerant

(R-22)

Connection

* DSA-240LH-R

4

750

Plate Mounting

REMOCON

Connecting Pipe

Grille Insert

174

245

REMOTE CONTROLLER

Frame Grille

Body

Plate Mounting

2. OUTLINE AND DIMENSIONS

1

INDOOR UNIT

* DSA-240L-R/LH-R

5

Inlet

380

699

323

foot

Service valve

873

Cabinet front

Service Cover

Cabinet Side

* DSA-240L-R/LH-R

2

OUTDOOR UNIT

6

1

PARTS OF NAME AND FUNCTION

3. OPERA TION

* DSA-240L-R/LH-R

■

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, 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.

Indoor Unit Display Switch Panel

Timer (Yellow)

Lights-on during the time
of reservation mode.

Quick (Red)

Lights-on during the time
of Quick Mode.

ON (Red)

Lights-on

during the operation

Air clean (Green)

Lights-on

during the operation

EMERGENCY

REMOCON

REMOCON

EMERGENCY

7

* DSA-240L-R/LH-R

Air Inlet

Air Outlet

Connection Pipe

Connection wire

Drain Hose

8

Name of Each Button

2

REMOTE CONTROLLER

* DSA-240L-R

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.

FAN DIR. Button

Press to select up/down
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

REMOTE CONTROLLER

9

Name of Each Button

* DSA-240LH-R

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.

FAN DIR. Button

Press to select up/down
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

REMOTE CONTROLLER

10

R epla cin g Ba tte r ies

3

R EM O TE CO N TRO LLER DISP LAY

Open the cover after
pressing the arrow
direction and pulling out.

Put the drycell by +. ­direction.

Close the cover after
pushing into arrow
direction.

1

2

3

R

E
M

O
T

E
C

O
N

T
R

O
L

L
E

R

+Ð

+Ð

R
E

M
O

T
E

C
O

N
T

R
O

L
L

E
R

* DSA -2 4 0 L-R

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

Lights to indicate the mode selected.

TIMER Indicators (Include sleep)

Lights to indicate the timer function mode.

TEMPERATURE & RESERVATION TIME lndicator

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 loreeze.

FAN Indicators

Lights to indicate
the fan speed.

AUTO

AUTO
NATURAL

ON OFF
TIMER

HOUR

11

R epla cin g Ba tte r ies

Open the cover after
pressing the arrow
direction and pulling out.

Put the drycell by +, ­direction.

Close the cover after
pushing into arrow
direction.

1

2

3

R

E
M

O

T
E

C
O

N
T
R

O

L
L
E

R

+Ð

+Ð

R

E
M

O
T
E

C

O
N

T
R

O
L
L

E
R

* DSA -2 4 0 LH -R

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

Lights to indicate the mode selected.

TIMER Indicators (Include sleep)

Lights to indicate the timer function mode.

TEMPERATURE & RESERVATION TIME lndicator

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 loreeze.

FAN Indicators

Lights to indicate
the fan speed.

AUTO

AUTO
NATURAL

ON OFF
TIMER

HOUR

12

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

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

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

If the Indoor Unit Display receive the signal of Remote Controller , y ou can hear the signal "beep –" or "beep ,
beep".
(1) In the case of receiving ON/OFF signal-"beep" "beep"
(2) And so on-"beep"

OFF-Timer

4

DESCRIPTION OF FUNCTIONS

Unit ON

Unit OFF

SET Time

HOUR

ON

OFF

ON-Timer

Unit ON

Unit OFF

SET Time

HOUR

ON

OFF

Control of Room Temperature

Buzzer

COMP (ON)

*RT: ROOM TEMPERATURE
DT: DESIRED TEMPERATURE

COMP (OFF)

-1°C0°C
(COOLING)

(RT-DT)

COMP (OFF)

COMP (ON)

-1°C0°C
HEATING

(RT-DT)

+1°C +2°C

(DSA-240LH-R)

13

Fan Speed (Indoor Unit)

(1) Motor speed (High speed, midium speed, low speed).
(2) Remote controller setting fan speed. (Auto , L, M, H, Natural)
(3) Relation of operating mode between fan speed. (legned: X-no relation)

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

0°C

L

M

H

1°C2°C

(RT-DT)

(D.T)

0°C

L

M

H

1°C2°C

(DT-RT)

(COOLING)

(HEATING)
DSA-240LH-R

FAN ONLY COOL

DEHUMI-

AUTO QUICK

HEAT

DIFICATION

(DSA-240LH-R)

H HHLHHH
M MMLMHM

L LLLLHL

Auto Auto L Auto H Auto

Natural Natural Natural L Natural H Natural

14

(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: Quick
Preset temperature:18C: Cooling, 32C: Heating)
Fan speed: High

You cannot operate with remote controller.

(1) When you are going to sleep, select sleep switch and the unit controls the room to the desired temperature.

(The unit will automatically turn off 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.

S le ep M od e

Em e r g ency O p era tion

0 0.5 1.0 HOUR

(COOLING CYCLE)

DT

+0.5 C

+0.5 C

+0.5 C

0 0.5 1.0 HOUR

(HEATING CYCLE) DSA-240LH

DT

- 0.5 C

- 0.5 C

- 0.5 C

Fros t P re ve ntio n o f In d oo r U nit

When the unit operates at low ambient temperature, frost may appear on the Evaporator. When the indoor coil
temperature is lower than -1 C at the end of 10 minutes of continuous compressor operation from the star t, 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.

-1 C+7 C

Compressor and
Outdoor Fan

ON ON

OFF

Indoor Fan

Set speed

(Indoor coil temperature)

(HEATING CYCLE) DSA-240LH-R

*

*
*

15

Auto Mode

(1) In Auto Mode

After the indoor fan is operated f or 20 seconds in the Auto Mode the unit will operate automatically b y selecting
operating Mode according to the room 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.
(In the initial power up, the time dela y is 30 seconds)

ROOM TEMPERATURE

DT-2°C

>

RT

DT-2°C

≤

RT ≤DT+3°C

DT+3°C

<

RT

OPERA TING MODE

DSA-240L-R Cooling

DSA-240LH-R Heating

Dehumidifier

Cooling

FLAP POSITION

Cooling Position
Heating Position
Cooling Position
Cooling Position

(RT: Room temperature)

16

1) Cooling Mode
When the room temperature is higher than 22C

 Fan Speed: High speed
 Air discharge direction: Fixed
 Set temperature: 18C (Fixed)

The air discharge direction procedure is below

Fixed Up/Down

Up/Down Fixed

The option is LEFT/RIGHT direction.

1) Heating Mode
When the room temperature is lower than 22C

 Fan Speed: Super high speed
 Air discharge direction: Fixed
 Set temperature: 18C (Fixed)

The air discharge direction procedure is below

Fixed Up/Down

Up/Down Fixed

The option is LEFT/RIGHT direction.

Deh um idifica tion M od e

A ir Dis ch a r g e Dir ection(on ly re m o co n o p er a tion)

Q u ick M od e(Po w e r f ul Co o lin g & H ea tin g)

The air discharge direction procedure is below.

Fixed UP/Down Fixed

Up/Down

 Desired temperature < Room temperature

Outdoor Fan, Compressor : ON
Indoor Fan : Low speed

 Desired temperature Room temperature

Compressor : 3 min/ON, 5 min/OFF
Fan Speed : low speed

 Room temperature 18 C

Compressor : OFF
Fan speed : Low speed

COOLING POSITION

HEATING POSITION

<
=

17

4. WIRING DIAGRAM

* DSA-240L-R

Y

N

L

Y

N

L

FAN MOTOR

BLK

RED

ORG

H

S

S

R

C

C

CAPACITOR DUAL

FAN

HERM

RED

BRN

BRN

OUTDOOR INDOOR

RED

POWER RELAY

RA TH. : ROOM AIR THERMISTOR

IDC TH. : INDOOR COIL THERMISTOR

RA TH. : ROOM AIR THERMISTOR

IDC TH. : INDOOR COIL THERMISTOR

FAN MOTOR

CAPACITOR

INDOOR

FAN MOTOR

SWING MOTOR

BLU

WHT

YEL/GRN

RED

BLU

YEL/GRN

BRN

RED

BLU

BLU

YEL/GRN

YEL

RED

WHT

RED

RED

RA

TH.

IDC

LED PCB

1123456 7

TH.

BLK

PCB TRANS

BLU

RL1

CN1

BLU

BRN

FUSE

BLK

RED

CN4 CN3

CN2 CN6 CN9 CN1

CN13

R

C

S

ORG BLU

RED

ORG
YEL
PNK
BLU

BRN

BRN

YEL/GRN

CONTROL PCB

POWER

CORD

1

8

4

0

6

2

BLU

COMPRESSOR

18

* DSA-240LH-R

BLK

BLK

2

1

Y

N

L

BLK BLK

INDOOR

TERMDNAL

BLOCK

BLK

BLK

4 WAY

PCB TRANS

CN2 CN6 CN3 CN11

CN13

CONTROL PCB

OUTDOOR INDOOR

CN10

CN4 CN3

WHT

WHT

WHT

RED

RED DGR BRN

RED

RED

RA

TH

IDC

TH.

COMP

RL1 RL2 RL3

YEL/GRN

BLK

WHT

H

S

S

R

C

ORG

RED

RED

RED

BRN

OUTDOOR

TERMDNAL

BLOCK

1

3

4

6

5

2

BLU

BLU

WHT

YEL/GRN

YEL/GRN

RED

BRN

BRN

BRN

POWER

CORD

BLU

BLU

WHT
BLU
RED

RED

ORG

YEL
PNK

BLU

GRN
YEL
GRY
BRN
BLK

FUSE

CN1

BLU

YEL/GRN

YEL BLK

R

SC

FAN MOTOR

CAPACITOR

INDOOR

FAN MOTOR

YEL/GRN

YEL/GRN

POWER RELAY

BRN

BRN

RATH: ROOM AIR THERMSTOR

IDC TH: INDOOR COIL THERMSTOR

ODC TH: OUTDOOR COIL THERMSTOR

RATH: ROOM AIR THERMSTOR

IDC TH: INDOOR COIL THERMSTOR

ODC TH: OUTDOOR COIL THERMSTOR

BLU

ODC TH

FAN

HERN

FAN MOTOR

CAPACITOR DRAL

COMPRESSOR

RED

4W

2

1

Y

N

L

12345678

LED PCB

19

1

MAIN ELECTRIC PARTS

* DSA-240L-R

PART NAME PART CODE SPEC. QUANTITY REMARK

Fan Motor 3108007500 IC-9430DWKG7A 1
Fan Motor Capacitor 3106902400 2.0uF 400VAC 1
Fuse 5FVLB3152L 250V 3.15A 1
Transformer 5EPV050120 230V/50Hz 1
Stepping Motor 3108007600 GSP-24RW-062 1
Terminal Block 3108912320 SN-DBW-062 1
Compressor 3100068201 AWG-5530EXC 1
Fan Motor 3108007400 OSME986DERC 230/50 1
Dual Capacitor 3109508100 5/45µF 400VAC 1
Terminal Block 3108912320 SN-DBW-4P 1
Reversing Valve 3105400310 CHV-0201 SAGINDMIYA 1
Solenoid coil 3109700110 CHV-01AJ506B1 1

Outdoor

Unit

Indoor

Unit

* DSA-240LH-R

PART NAME PART CODE SPEC. QUANTITY REMARK

Fan Motor 3108007500 IC-9430DWKG7A 1
Fan Motor Capacitor 3106902400 2.0uF 400VAC 1
Fuse 5FVLB3152L 250V 3.15A 1
Transformer 5EPV050120 230V/50Hz 1
Stepping Motor 3108007600 GSP-24RW-062 1
Terminal Block 3108912320 SN-DBW-062 1
Compressor 3100068201 AWG-5530EXC 1
Fan Motor 3108007400 OSME986DERC 230/50 1
Dual Capacitor 3109508100 5/45µF 400VAC 1
Terminal Block 3108912320 SN-DBW-4P 1
Reversing Valve 3105400310 CHV-0201 SAGINDMIYA 1
Solenoid coil 3109700110 CHV-01AJ506B1 1

Outdoor

Unit

Indoor

Unit