Daewoo DSB070L091L121L(1) Schematic
Contents
CONTENTS |
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1. |
Specifications.......................................................................................................... |
2 |
2. |
Outline and Dimensions ......................................................................................... |
5 |
3. |
Operation................................................................................................................. |
9 |
4. |
Wiring Diagram..................................................................................................... |
22 |
5. |
Refrigerant Cycle.................................................................................................. |
24 |
6. |
Control Block Diagram ......................................................................................... |
25 |
7. |
Electric Circuit Diagram........................................................................................ |
26 |
8. |
Trouble Shooting................................................................................................... |
28 |
9. |
Key Components of Electronic Circuit................................................................. |
47 |
10. |
Disassembly Instructions ..................................................................................... |
50 |
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1) Indoor Unit ........................................................................................................ |
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2) Outdoor Unit ..................................................................................................... |
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3) Exploded Diagram (Indoor Unit)...................................................................... |
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4) Exploded Diagram (Outdoor Unit)................................................................... |
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5) Control Box Assembly...................................................................................... |
65 |
1. SPECIFICATIONS
¡ DSB-070L |
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MODEL |
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DSB-070L |
ITEM |
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Function |
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Cooling |
Class |
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T |
Power |
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AC 220-240V / 50Hz |
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Capacity |
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W |
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2,051 |
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Btu/h |
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7,000 |
Dehumidification |
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l/h |
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0.89 |
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Running Current |
A |
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2.9 |
Electrical |
Power Input |
W |
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680 |
Data |
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Starting Current |
A |
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18 |
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Type |
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Rotary |
Compressor |
Model |
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QB 125PL 12B |
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Capacitor |
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25µF/370VAC |
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Indoor Unit |
Outdoor Unit |
Fan |
Type |
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Cross flow fan |
Propeller fan |
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Motor |
Capacitor |
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1.0µ F 400VAC |
1.8 µF 400VAC |
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Motor Model Number |
IC-8417DWKF5A |
IC-9625DWLF 5A |
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Refrigerant |
Control |
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Capillary |
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(R-22) |
Charge Q'ty |
g |
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800 |
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Connection |
Type |
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Flare |
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OD (Liquid/Suction) |
in(mm) |
1/4 (6.35) |
1/2 (12.7) |
Dimensions (W x H x D) |
mm |
750 x 245 x 174 |
654 x 549 x 256 |
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Net Weight |
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kg |
7.0 |
34 |
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2 |
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¡ DSB-091L |
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MODEL |
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DSB-091L |
ITEM |
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Function |
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Cooling |
Class |
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Power |
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AC 220-240V / 50Hz |
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Capacity |
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W |
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2,637 |
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Btu/h |
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9,000 |
Dehumidification |
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l/h |
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1.15 |
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Running Current |
A |
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4.2 |
Electrical |
Power Input |
W |
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920 |
Data |
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Starting Current |
A |
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Type |
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Rotary |
Compressor |
Model |
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RBB090A001 |
QK 164PN12F |
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Capacitor |
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25µF / 370VAC |
30µF / 370VAC |
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Indoor Unit |
Outdoor Unit |
Fan |
Type |
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Cross flow fan |
Propeller fan |
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Motor |
Capacitor |
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1.0µ F 400VAC |
1.8µF 400VAC |
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Motor Model Number |
IC-8417DWKF5A |
IC-9630DWLF5A |
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Refrigerant |
Control |
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Capillary |
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(R-22) |
Charge Q'ty |
g |
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1,000 |
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Connection |
Type |
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Flare |
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OD (Liquid/Suction) |
in(mm) |
1/4 (6.35) |
1/2 (12.7) |
Dimensions (W x H x D) |
mm |
750 x 245 x 174 |
654 x 549 x 256 |
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Net Weight |
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kg |
7.0 |
34 |
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3 |
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¡ DSB-121L |
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MODEL |
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DSB-121L |
ITEM |
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Function |
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Cooling |
Class |
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T |
Power |
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AC 220-240V / 50Hz |
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Capacity |
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W |
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3,507 |
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Btu/h |
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12,000 |
Dehumidification |
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l/h |
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1.53 |
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Running Current |
A |
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5.7 |
Electrical |
Power Input |
W |
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1,250 |
Data |
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Starting Current |
A |
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34 |
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Type |
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Rotary |
Compressor |
Model |
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RCB 120A001 |
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Capacitor |
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25µF / 400VAC |
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Division |
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Indoor Unit |
Outdoor Unit |
Fan |
Type |
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Cross flow fan |
Propeller fan |
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Motor |
Capacitor |
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1.0µ F 400VAC |
3.5µF 400VAC |
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Motor Model Number |
IC-8428DWKG7C |
IC-9430DWLC5B |
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Refrigerant |
Control |
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Capillary |
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(R-22) |
Charge Q'ty |
g |
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1,300 |
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Connection |
Type |
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Flare |
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OD (Liquid/Suction) |
in(mm) |
1/4 (6.35) |
1/2 (12.7) |
Dimensions (W x H x D) |
mm |
925 x 285 x 194 |
666 x 552 x 264(Before) |
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654 x 549 x 256(After) |
Net Weight |
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9.7 |
34 |
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OUTLINE AND DIMENSIONS |
INDOOR UNIT |
2. |
1 |
¡ DSB-070L/DSB-091L
Plate Mounting
Connecting Pipe
750 |
REMOCON |
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5
Grille Insert
Frame Grille
Body
Plate Mounting
245
174
¡ DSB-121L
Connecting Pipe
406 |
Plate Mounting |
REMOCON
925
Plate Mounting
Body
Frame Grille
Grille Insert
285
Filter - L |
Filter - R |
194 |
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6
2 OUTDOOR UNIT
¡ DSB-070L/DSB-091L/DSB-121L(After)
Inlet
Inlet |
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256 |
Cabinet Side Panel Top |
Guide Support |
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Outlet |
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Foot |
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Cabinet Front |
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Handle |
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549
Outlet
654 |
Service Valve |
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Foot Cushion
¡ DSB-121L(Before)
Inlet
Cushion Foot |
666 |
Valve Service
Outlet |
AIR |
Inlet |
Front Cabinet |
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Foot
264
334
Handle
552
572 
CabinetSide
Top Panel
Back Cabinet
8
3. OPERATION
1PARTS OF NAME AND FUNCTION
¡DSB-070L/DSB-091L
Indoor Unit
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Deodorizing Filter |
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Electrostatic Filter |
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(option) |
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Air Inlet |
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Fan Direction
Antibacterial (Up, Down)
Filter
Lamp |
Remote
Controller
Receiver
Air Outlet |
Power Plug |
Remote Controller
9
¡ DSB-121L
Indoor Unit
Electrostatic Filter |
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Air Inlet |
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Deodorizing Filter |
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Antibacterial |
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Air Outlet |
Fan Direction |
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Filter |
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(Up, Down) |
Power Plug |
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Remote |
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Controller |
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Receiver |
Remote Controller |
Lamp |
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10
¡ DSB-070L/DSB-091L
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. beep.”
ON (Red) |
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Timer (Yellow) |
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Lights when the |
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Lights during the time |
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operation is going on. |
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reservation mode. |
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Air clean (Green) |
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Quick (Red) |
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EMR. REMOCON
■ 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.
11
¡ DSB-121L
Indoor Unit Display
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".
ON AIR CLEAN QUICK TIMER
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ON (Red) |
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Timer (Yellow) |
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Lights when the |
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Lights during the time |
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operation is |
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reservation mode. |
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going on. |
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Air clean (Green) |
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Quick(Red) |
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Switch Panel
EMERGENCY REMOTE
■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 usally used by Remote
Controller.
12
¡ DSB-070L/DSB-091L/DSB-121L(After)
Outdoor Unit
Air Inlet (Side Back)
Connection Wire
Connecting Pipe
Drain Hose
Air Outlet
13
¡ DSB-121L(Before)
Outdoor Unit
Air Inlet (side Back)
AIR
Air Outlet
Connection
Wire
Drain Hose
Connecting
Pipe
NOTE:
How to remove Top Panel
1.Loosen the screw at left and right side.
2.Push the three parts op Front and Back sides like figure orderly.
3.Unhook the locking parts of Top Panel.
The front locking parts |
The back locking parts |
FRONT SIDE |
BACK SIDE |
14
¡ DSB-121L(Before)
Outdoor Unit
Air Inlet (side Back)
AIR
Air Outlet
Connection
Wire
Drain Hose
Connecting
Pipe
NOTE:
How to remove Top Panel
1.Loosen the screw at left and right side.
2.Push the three parts op Front and Back sides like figure orderly.
3.Unhook the locking parts of Top Panel.
The front locking parts |
The back locking parts |
FRONT SIDE |
BACK SIDE |
14
2REMOTE CONTROLLER
¡DSB-070L/DSB-091L/DSB-121L
Name of Each Button
AUTO
Display
Displays information pertaining to unit.
ON/OFF Button
Press to turn the unit on or off.
FAN SPEED Button
Press to select the fan speed (High "
", Middle "
",
Low "
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MODE Button
Press to cycle through the modes (Auto/Quick/Cooling/Fan/Dry)
SLEEP Button
Press to set the unit for the sleep mode.
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)
TIMER ENTER/CANCEL Button
Press to enter a timer setting or to cancel timer setting
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TEMPERATURE Buttons |
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Press to raise or lower |
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the desired temperature. |
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MODE |
FAN SPEED |
FAN DIR. |
FAN DIR. |
Button |
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Press to select up/down |
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direction for fan. |
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SLEEP |
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TIMER |
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ON/OFF |
ENTER/ |
TURBO/MILD |
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CANCEL |
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TURBO/MILD |
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Press to be colder the unit. |
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COVER
Slide down to access most of the remote buttons. Slide down further to
REMOTE CONTROLLER access the battery
compartment.
15
3REMOTE CONTROLLER DISPLAY
¡DSB-070L/DSB-091L/DSB-121L
MODE Indicators (Auto/Quick/Cool/Fan/Dehumidifier)
Lights to indicate the mode selected.
AUTO
FAN Indicators
Lights to indicate the fan speed.
NATURAL Indicator 
Lights to indicate the speeds simulating a loreeze.
FAN DIRECTION Indicators
Lights to indicate the fan direction.
TIMER Indicators (Include sleep)
Lights to indicate the timer function mode.
TEMPERATURE & RESERVATION TIME lndicator
Lights to indicate the temperature or time.
Replacing Batteries
1 |
Open the cover after |
2 |
Put the drycell by ●+ ●- |
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pressing the arrow |
direction. |
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direction and pulling out. |
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+ |
– |
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– |
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3 |
Close the cover after |
pushing into arrow |
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direction. |
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REMOTE |
REMOTE |
CONTROLLER |
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CONTROLLER |
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16
4 DESCRIPTION OF FUNCTIONS
OFF
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Timer
If you set time in OFF-Timer Mode, the unit will stop at the set time.
Unit ON
ON
Unit OFF
OFF
SET Time |
HOUR |
ON
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Timer
If you set time in ON-Timer Mode, the unit will run at the set time.
Unit ON |
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ON |
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Unit OFF |
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OFF |
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SET Time |
HOUR |
Control of Room Temperature
(1)Range of setting temperature: 18~32°C
(2)Setting temperature: Operating temperature of compressor
COMP (ON)
COMP (OFF)
-1˚C Desired temperature |
Temperature |
(COOLING)
Buzzer
¡(Room temperatrue
<setting temperature Compressor OFF
Room temperature (> setting temperafure
Compressor ON
If the Indoor Unit Display receive the signal of Remote Controller, you can hear the signal "beep –" or "beep, beep".
(1)In the case of receiving ON/OFF signal-"beep""beep"
(2)And so on-"beep"
17
Fan
Speed (Indoor Unit)
(1)Motor speed (Super high speed, high speed, normal speed, low speed, ultra low speed).
(2)Remote controller setting fan speed. (Auto, L, M, H, Natural)
(3)Relation of operating mode between fan speed.
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FAN ONLY |
COOL |
DEHUMI- |
AUTO |
QUICK |
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DIFICATION |
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H |
H |
H |
L |
H |
H |
M |
M |
M |
L |
M |
H |
L |
L |
L |
L |
L |
H |
Auto |
Auto |
Auto |
L |
Auto |
H |
Natural |
Natural |
Natural |
L |
Natural |
H |
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(4) Automatic Operation
If the unit is set in 'AUTO' mode, the unit operates automatically according to the room temperature to keep the room temperature comfortable.
(COOLING) |
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H |
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M |
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R.T=Room temperafure |
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L |
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D.T=Desired temperafure |
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0°C |
1°C |
2°C (R.T-D.T) |
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(D.T) |
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Sleep
Mode
(1)When you are going to sleep, select sleep switch and the unit controls the room to the desired temperature. (The unit will not operate after 4 hour)
(2)For changing the temperature.
Difference
desired temperature between room temperature (°C)
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0.5°C |
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0.5°C |
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Desired |
0.5°C |
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Temperature |
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0 |
0.5 |
1.0 |
HOUR |
SET TIME |
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18
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: LOW
¡You cannot operate with remote controller.
Frost
Prevention of Indoor Unit
When the unit operates at low ambient temperature, frost may appear on the Evaporator. 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.
ON
Compressor and
OFF
Outdoor Fan
Set Speed
OFF
Indoor Fan
0°C 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.
19
Auto
Mode I
(1) When the room temperature is higher than 28°C (Cooling Mode) !Compressor and lndoor Fan
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ON |
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OFF |
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(Room temperature- |
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-1 |
0 |
C |
Desired temperature) |
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@ The fan will automatically operate as following Figure
H |
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M |
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L |
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(Room temerature- |
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Desired temperature) |
0°C |
1°C |
2°C (R.T-D.T) |
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(D.T) |
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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(only remocon operation)
The air discharge direction procedure is below.
Fixed 
Up/Down 
Fixed
Up/Down 
20
Quick Mode(Powerful Cooling)
!Fan Speed: Super high speed @ Air discharge direction: Fixed
# Set temperature: 18°C Fixed (Cooling) $ Compressor and Outdoor Fan
The air discharge direction procedure is below
Fixed 
Up/Down 
Fixed
Up/Down
ƒRThe option is LEFT/RIGHT direction.
ON
OFF
(Room temperature-18˚C)
-1 0 1
Self
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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
# Only Emergency mode
ERROR CODE |
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DISPLAY PATTERN |
ERROR CONTENTS |
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8 seconds |
Compressor, Electrical parts of |
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3 |
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0.5 second |
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comp. Gas leak |
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21
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