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Service Manual
Split System Air
Conditioner
Model: DSB-092A/AH
DSB-123A/AH/PH
DSB-182PH
DSA-240A-R/AH-R
DSB-240AH-R/PH-R
DAEWOO ELECTRONICS CO., LTD.
by Nemko
✔
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).
S/M No. : 3113907300
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CONTENTS
1. Specifications..........................................................................................................2
2. Outline and Dimensions.........................................................................................9
3. Operation ..............................................................................................................16
4. Wiring Diagram.....................................................................................................41
5. Refrigerant Cycle..................................................................................................49
6. Control Block Diagram.........................................................................................51
7. Trouble Shooting...................................................................................................53
8. Key Components of Electronic Circuit.................................................................91
9. Disassembly Instructions .....................................................................................94
1) Indoor Unit........................................................................................................94
2) Outdoor Unit.....................................................................................................99
3) Exploded Diagram (Indoor Unit)....................................................................104
4) Exploded Diagram (Outdoor Unit).................................................................115
5) Control Box Assembly....................................................................................128
Contents
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2
1. SPECIFIC A TIONS
MODEL
DSB-092A
ITEM
Function Cooling
Class T
Power AC 220~240V/ 50Hz
Capacity W 2,637
Btu/h 9,000
Dehumidification l/h 1.15
Running Current A 4.0
Power Input W 900
Starting Current A 21
Type Rotary
Model RBB090A011
Capacitor 25µF / 370VAC
Indoor Unit Outdoor Unit
Type Cross flow fan Propeller fan
Capacitor 1.0µF 400VAC 1.8µF 400VAC
Motor Model Number YDK-8-4B A9530BD010 / YDK-30-6B
Control Capillary
Charge Q'ty g 630
Type Flare
OD (Liquid/Gas) in(mm) 1/4 (6.35) 3/8 (9.52)
Dimensions (W x H x D) mm 750 x 245 x 179 654 x 549 x 256
Net Weight kg 7.0 32.5
Electrical
Data
Compressor
Fan
Motor
Refrigerant
(R-22)
Connection
* DSB-092A
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MODEL
DSB-092AH
ITEM
Function Cooling & Heating
Class T
Power AC 220~240V/ 50Hz
Capacity W 2,637/2,637
Btu/h 9,000/9,000
Dehumidification l/h 1.15
Running Current A 4.5/4.5
Power Input W 1,000/1,000
Starting Current A 24
Type Rotary
Model RBB100A011
Capacitor 30µF / 370VAC
Indoor Unit Outdoor Unit
Type Cross flow fan Propeller fan
Capacitor 1.0µF 400VAC 1.8µF 400V
Motor Model Number YDK-8-4B A9530BD010/YDK-30-6B
Control Capillary
Charge Q'ty g 800
Type Flare
OD (Liquid/Gas) in(mm) 1/4 (6.35) 3/8 (9.52)
Dimensions (W x H x D) mm 750 x 245 x 174 654 x 549 x 256
Net Weight kg 7.0 34
Electrical
Data
Compressor
Fan
Motor
Refrigerant
(R-22)
Connection
* DSB-092AH
3
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4
MODEL
DSB-123A
ITEM
Function Cooling
Class T
Power AC 220~240V/ 50Hz
Capacity W 3,517
Btu/h 12,000
Dehumidification l/h 1.35
Running Current A 5.7
Power Input W 1,300
Starting Current A 34
Type Rotary
Model RCB 120A001
Capacitor 25µF/ 370VAC
Division Indoor Unit Outdoor Unit
Type Cross flow fan Propeller fan
Capacitor 1.5µF 400VAC 3.5µF 400VAC
Motor Model Number RP-13B YDK-40-4B
Control Capillary
Charge Q'ty g 1,250
Type Flare
OD (Liquid/Gas) in(mm) 1/4 (6.35) 3/8 (9.52)
Dimensions (W x H x D) mm 815 x 285 x 195 654 x 549 x 256
Net Weight kg 9.2 34
Electrical
Data
Compressor
Fan
Motor
Refrigerant
(R-22)
Connection
* DSB-123A
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5
MODEL
DSB-123AH/123PH
ITEM
Function Cooling & Heating
Class T
Power AC 220~240V/ 50Hz
Capacity W 3,517/3,810
Btu/h 12,000/13,000
Dehumidification l/h 1.28
Running Current A 6.8/7.3
Power Input W 1,500/1,550
Starting Current A 37
Type Rotary
Model RCB 150A001
Capacitor 35µF/ 370VAC
Division Indoor Unit Outdoor Unit
Type Cross flow fan Propeller fan
Capacitor 1.5µF 400VAC 3.5µF 400VAC
Motor Model Number RP-13B YDK-40-4B
Control Capillary
Charge Q'ty g 1,230
Type Flare
OD (Liquid/Gas) in(mm) 1/4 (6.35) 3/8 (9.52)
Dimensions (W x H x D) mm 815 x 285 x 195 654 x 549 x 256
Net Weight kg 9.2 34
Electrical
Data
Compressor
Fan
Motor
Refrigerant
(R-22)
Connection
* DSB-123AH/123PH
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6
MODEL
DSB-182PH
ITEM
Function Cooling & Heating
Class T1
Power AC 220~240V/ 50Hz
Capacity W 5,129/5,422
Btu/h 17,500/18,500
Dehumidification l/h 2.3
Running Current A 9.65/10
Power Input W 2,150/2,235
Starting Current A 49
Type Rotary
Model SHW33TC4-U
Capacitor 50µF / 370VAC
Indoor Unit Outdoor Unit
Type Cross flow fan Propeller fan
Capacitor 1.2µF 450VAC 3µF 400V
Motor Model Number IC-9425DWKC5C YDK-50-6B
Control Capillary
Charge Q'ty g 1,480
Type Flare
OD (Liquid/Gas) in(mm) 1/4 (6.35) 1/2 (12.7)
Dimensions (W x H x D) mm 1035 x 322 x 205 800 x 615 x 320
Net Weight kg 12.1 51.9
Electrical
Data
Compressor
Fan
Motor
Refrigerant
(R-22)
Connection
* DSB-182PH
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7
MODEL
DSB-240AH-R/240PH-R
ITEM
Function Cooling & Heating
Class T1
Power AC 220~240V/ 50Hz
Capacity W 7,034/7,034
Btu/h 24,000/24,000
Dehumidification l/h 2.67
Running Current A 13.4 / 13.6
Power Input W 2,450 / 2,500
Starting Current A 83
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 IC-9430DWKF7A OSME-806DERC
Control Capillary
Charge Q'ty g 2,050
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 65
Electrical
Data
Compressor
Fan
Motor
Refrigerant
(R-22)
Connection
* DSB-240AH-R/240PH-R
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8
MODEL
DSA-240AH-R/240PH-R
ITEM
Remark JIS C9812 SAA385386
Function Cooling & Heating
Class T1
Power AC 220V / 60Hz
Capacity
W 7,034/7,034 5,129
Btu/h 24,000/24,000 17.5
Dehumidification l/h 2.67
Running Current A 11.5/11.8 13
Power Input W 2,500/2,500 2,800
Starting Current A 60 602
Type Recipro
Model AWG5524EXN
Capacitor 35µF / 400VAC
Indoor Unit Outdoor Unit
Type Cross flow fan Propeller fan
Capacitor 2µF / 400VAC 5µF / 400VAC
Motor Model Number IC-9430DWKF7A OSME-986DERC
Control Capillary
Charge Q'ty g 2,100
Type Flare
OD (Liquid/Gas) in(mm) 3/8 (9.52) 5/8 (15.9)
Dimensions (W x H x D) mm 1080 x 298 x 200 875 x 675 x 325
Net Weight kg 14.7 65
Electrical
Data
Compressor
Fan
Motor
Refrigerant
(R-22)
Connection
* DSA-240AH-R/240PH-R
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9
2. OUTLINE AND DIMENSIONS
1
INDOOR UNIT
750
Plate Mounting
REMOCON
Connecting Pipe
Grille Insert
179
245
REMOTE CONTROLLER
Frame Grille
Body
Plate Mounting
* DSB-092A/092AH
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12
Connecting Pipe
Body
Frame Grille
Grille Insert
Plate Mounting
430
710
1080
Filter-L Filter-R
REMOCON
* DSA-240A-R/240AH-R, DSB-240AH-R/240PH-R
200
298
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13
* DSB-092A/092AH/123A/123AH/123PH
2
OUTDOOR UNIT
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Inlet
380
699
323
foot
Service valve
873
Cabinet front
Service Cover
Cabinet Side
* DSA-240A-R/240AH-R, DSB-240AH-R/240PH-R
15
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Electrostatic Filter(Option)
Removes dust and particles
from the air
Deodorizing Filter(Option)
Removes bad smells from the air.
Air Inlet
O2 Hose Cover
Remote
Controller
Receiver
Power Plug
Remote Controller
Fan Direction
(Up, Down)
Air Outlet
Antibacterial Filter
Removes dust and
prohibits germs.
Lamp
* DSB-092A/092AH
16
1
NAME AND FUNCTION OF PARTS
Indoor Unit
3. OPERA TION
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17
* DSB-123A/123AH/123PH
Power Plug
Electric Dust Collector
(DSB-123PH)
Electrostatic Filter
Removes dust and
particles from the air
O2 HOSE COVER
(ONLY 123A/AH)
Deodorizing Filter
Removes bad smells
from the air.
Air Inlet
Antibacterial
Filter
Removes dust and
prohibits germs.
Air Outlet Fan Direction
(Up, Down)
Remote Controller
Remote
Controller
Receiver
Lamp
R
E
M
O
T
E
C
O
N
T
R
O
L
L
E
R
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Indoor Cover
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)
ON
OFF
ENTERCANCEL
TIMER
RESET
FAN DIR.
FAN SPEED
MODE
SLEEP
ON/OFF
TEMP.
Electric Dust Collector
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Indoor Cover
Electric Dust Collector
Deodorizing Filter
Removes bad
smells from the air.
Emergency/Remote Switch
O2 Hose Cover
(DSA-240A-R/AH-R,
DSB-240AH-R)
Indicators
Indicate the
AC setting.
Remote
Sensor
Power Plug
LCD Remote
Controller
Air Cleaning Filters
Removes dust and
prohibits germs.
AIR OUT
AIR IN
Fan Direction
(Up/Down)
Fan Direction
(Left/Right)
M
O
D
E
S
L
E
E
P
O
N
/
O
F
F
T
I
M
E
R
E
N
T
E
R
/
C
A
N
C
E
L
F
A
N
S
P
E
E
D
T
U
R
B
O
/
M
I
L
D
F
A
N
D
I
R
.
* DSA-240A-R/240AH-R, DSB-240AH-R/PH-R
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20
* DSB-092A/092AH
■
Remote Control Signal Receiver
This place is the part to receive the signal if it
receives 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 during the time
reservation mode.
Quick (Red)
ON (Red)
Lights when the
operation is going on.
Air clean (Green)
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* DSB-123A/AH/PH
■ Remote Control Signal Receiver
This place is the part to receive the signal if it receives
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.
Indoor Unit Display Switch P anel
21
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.
EMERGENCY
REMOCON
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* DSB-182PH
Remote Control Signal Receiver
This place is the part to receive the signal if it receives
the signal, you can hear the signal Òbeep. beepÓ.
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
ON (Red)
Light-on
during the
operation
Air clean (Green)
Light-on
during the
operation
Timer (Yellow)
Light-on during
the time of
reservation mode.
Quick (Red)
Light-on during
the time of
Quick Mode.
TIMER
QUICK
AIR CLEAN
ON
ON (Red)
Light-on
during the
operation.
Plasma (Green)
Light-on
during the
Plasma mode.
Timer (Yellow)
Light-on during
the time of
reservation mode.
Quick (Red)
Light-on during
the time of
Quick Mode.
TIMER
QUICK
PLASMA
ON
(DSB-182L/LH/L-R/LH-R) (DSB-182PH)
EMERGENCY REMOTE
22
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23
* DSA-240A-R/240AH-R, DSB-240AH-R/240PH-R
■
Remote Control Signal Receiver
This place is the part to receive the signal if it
receives 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
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24
* DSB-092A/092AH/123A/123AH/123PH
Connection Cover
Remove cover to access the
AC connection
to the indoor unit.
Service Valves
The indoor and outdoor units
are connected by copper tubes
which are connected here.
AIR IN
AIR OUT
Connection Wire
O2 Hose Wire
(092A/123A/AH)
Connecting Pipe
Drain Hose
Outdoor Unit
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25
* DSB-182PH
AIR IN
AIR OUT
AC Cover
Remove cover to
access the AC
connection from
this unit to the
indoor unit.
Connection Wire
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)
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26
* DSA-240A-R/240AH-R, DSB-240AH-R/240PH-R
Air Inlet
Air Outlet
Connection Pipe
Drain Hose
Connection wire
O2 Hose wire
(DSA-240A-R/AH-R
DSB-240AH-R)
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27
Name of Each Button
2
REMOTE CONTROLLER
* DSB-092A/DSB-123A/DSA-240A-R
MODE
SLEEP OXYGEN
ON/OFF
TIMER
ENTER/
CANCEL
FAN SPEED
TURBO/MILD
Display
Display information
TIMER ENTER/CANCEL Button
Press to enter a timer setting or
to cancel timer setting
TIMER ON/OFF Button
Press to set the unit off 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/Cool/Fan/Dehumidifier/
Heat)
SLEEP Button
Press to set the unit for the sleep
mode.
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 " ",
Natural).
COVER
Slide down to access most
of the remote buttons.
Slide down further to
access the battery
compartment.
AUTO
FAN DIR.
TURBO/MILD
Press to select super power
operation (Turbo) mode.
OXYGEN Button
Press to generate
oxygen and clean polluted air.
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28
* DSB-092AH/DSB-123AH/DSA-240AH-R/DSB-240AH-R
MODE
SLEEP OXYGEN
ON/OFF
TIMER
ENTER/
CANCEL
FAN SPEED
TURBO/MILD
Display
Display information
TIMER ENTER/CANCEL Button
Press to enter a timer setting or
to cancel timer setting
TIMER ON/OFF Button
Press to set the unit off 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/Cool/Fan/Dehumidifier/
Heat)
SLEEP Button
Press to set the unit for the sleep
mode.
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 " ",
Natural).
COVER
Slide down to access most
of the remote buttons.
Slide down further to
access the battery
compartment.
AUTO
FAN DIR.
TURBO/MILD
Press to select super power
operation (Turbo) mode.
OXYGEN Button
Press to generate
oxygen and clean polluted air.
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29
* DSB-123PH/DSB-240PH-R
MODE
SLEEP PLASMA
ON/OFF
TIMER
ENTER/
CANCEL
FAN SPEED
TURBO/MILD
Display
Display information
TIMER ENTER/CANCEL Button
Press to enter a timer setting or
to cancel timer setting
TIMER ON/OFF Button
Press to set the unit off 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/Cool/Fan/Dehumidifier/
Heat)
SLEEP Button
Press to set the unit for the sleep
mode.
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 " ",
Natural).
COVER
Slide down to access most
of the remote buttons.
Slide down further to
access the battery
compartment.
AUTO
FAN DIR.
TURBO/MILD
Press to select super power
operation (Turbo) mode.
PLASMA Button
Press to purify air.