Daewoo DSB-070LH User manual

✔ 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. :DSB070LH10_2

CONTENTS
1. Specifications..........................................................................................................2
2. Outline and Dimensions.........................................................................................6
3. Operation ..............................................................................................................12
4. Wiring Diagram.....................................................................................................28
5. Refrigerant Cycle..................................................................................................32
6. Control Block Diagram.........................................................................................33
7. Electric Circuit Diagram........................................................................................34
8. Trouble Shooting ..................................................................................................36
9. Key Components of Electronic Circuit.................................................................62
10. Disassembly Instructions .....................................................................................65
1) Indoor Unit........................................................................................................65
2) Outdoor Unit.....................................................................................................68
3) Exploded Diagram (Indoor Unit)......................................................................71
4) Exploded Diagram (Outdoor Unit)...................................................................79
5) Control Box Assembly......................................................................................87
Contents

2
1. SPECIFICATIONS
MODEL DSB-070LH
ITEM
Function Cooling & Heating
Class T
Power AC 220~ 240V/ 50Hz
Capacity W 2,051/2,051
Btu/h 7,000/7,000
Dehumidification l/h 0.89
Running Current A 3/3.2
Power Input W 676/693
Starting Current A 18
Type Rotary
Model QB 134PL 12B
Capacitor 25µF/400VAC
Indoor Unit Outdoor Unit
Type Cross flow fan Propeller fan
Capacitor 1.0µF 400VAC 1.8µF 400V
Motor Model Number IC-8417DWKF5A IC-9625DWLF5A
Control Capillary
Charge Q'ty g 900
Type Flare
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
Net Weight kg 7.0 34
Electrical
Data
Compressor
Fan
Motor
Refrigerant
(R-22)
Connection
* DSB-070LH

3
MODEL DSB-091LH
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 4.0/4.2
Power Input W 910/940
Starting Current A 24
Type Rotary
Model RBB100A001 QK 185PN13B
Capacitor 30µF / 450VAC 35µF / 400VAC
Indoor Unit Outdoor Unit
Type Cross flow fan Propeller fan
Capacitor 1.0µF 400VAC 1.8µF 400V
Motor Model Number IC-8417DWKF5A IC-9630DWLF5A
Control Capillary
Charge Q'ty g 1,150
Type Flare
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
Net Weight kg 7.0 34
Electrical
Data
Compressor
Fan
Motor
Refrigerant
(R-22)
Connection
* DSB-091LH

4
MODEL DSB-121LH/122LH
ITEM
Function Cooling & Heating
Class T
Power AC 220~240V/ 50Hz
Capacity W 3,654/3,946
Btu/h 12,500/13,500
Dehumidification l/h 1.6
Running Current A 7.0/6.5
Power Input W 1,500/1,410
Starting Current A 37
Type Rotary
Model RCB 150A001
Capacitor 35µF/ 400VAC
Division Indoor Unit Outdoor Unit
Type Cross flow fan Propeller fan
Capacitor 1.0µF 400VAC 3.5µF 400VAC
Motor Model Number IC-8428DWKG7C IC-9430DWLC5B
Control Capillary
Charge Q'ty g 1,060
Type Flare
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)
654 x 549 x 256(After)
Net Weight kg 9.7 34
Electrical
Data
Compressor
Fan
Motor
Refrigerant
(R-22)
Connection
* DSB-121LH/122LH

5
MODEL DSB-240LH
ITEM
Function Cooling & Heating
Class T
Power AC 220~240V/ 50Hz
Capacity W 7,030
Btu/h 24,000
Dehumidification l/h 2.67
Running Current A 13.4 / 13.6
Power Input W 2,450 / 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 2,200
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
* DSB-240LH

6
750
Plate Mounting
REMOCON
Connecting Pipe
Grille Insert
174
245
REMOTECONTROLLER
Frame Grille
Body
Plate Mounting
2. O UTLINE A ND DIM ENSIO NS
1
IN D O O R U N IT
* D S B -0 7 0 LH / DS B - 0 9 1 LH

7
REMOCON
Filter - L Filter - R
Grille Insert
Frame Grille
Body
Plate Mounting
Connecting Pipe
Plate Mounting
406
194
285
925
REMOTECONTROLLER
* D S B -1 2 1 LH / 1 2 2 LH

8
256
549
654
2
O U TDO O R U N IT
* DS B -0 7 0 LH / DS B -0 9 1 LH / DS B -1 2 1 LH / DS B -1 2 2 LH (A f te r )
Inlet
Inlet
Outlet
Outlet
Foot
Foot Cushion
Handle
Cabinet Side
Panel Top Guide Support
Service Valve
Cabinet Front

9
Cabinet SideHandleCabinet Front Foot
264
334
Panel Top Cabinet Back
552
572
Inlet
AIRAIR
Inlet
Outlet
Foot Cushion
Service Valve
666
* DS B -1 2 1 LH / 1 2 2 LH (B e fo re )

Connecting Pipe
Body
Frame Grille
Grille Insert
Plate Mounting
430 710
1080
Filter-L Filter-R
REMOCON
* D S B -2 4 0 LH
10

Inlet
380
699
323
foot
Service valve
873
Cabinet front Service Cover
Cabinet Side
* D S B -2 4 0 LH
11

12
1
PARTS OF NAME AND FUNCTION
Indoor Unit
3. OPERATION
* DSB-070LH/DSB-091LH
REMOTECONTROLLER
Electrostatic Filter
(option)
Deodorizing Filter
(option)
Air Inlet
Remote
Controller
Receiver
Power Plug
Remote Controller
Fan Direction
(Up, Down)
Air Outlet
Antibacterial
Filter
Lamp

13
Indoor Unit
* DSB-121LH/122LH
Power Plug
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Electrostatic Filter Deodorizing FilterAir Inlet
Antibacterial
Filter Air Outlet Fan Direction (Up, Down)
Remote Controller
Remote
Controller
Receiver
Lamp
REMOTECONTROLLER

14
* DSB-070LH/DSB-091LH
■ 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 during the time
reservation mode.
Quick (Red)
ON (Red)
Lights when the
operation is going on.
Air clean (Green)
EMR. REMOCON

16
* DSB-240LH
■ 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

17
Outdoor Unit
* DSB-070LH/DSB-091LH/DSB-121LH/DSB-122LH(After)
Air Inlet (Side Back)
Connection Wire
Connecting Pipe
Drain Hose
Air Outlet

18
AIR
Air Inlet (side Back)
Air Outlet
Connection
Wire
Connecting
Pipe
Drain Hose
Outdoor Unit
* DSB-121LH/DSB-122LH(Before)
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
FRONT SIDE BACK SIDE
The back locking parts

19
* DSB-240LH
Air Inlet
Air Outlet
Connection Pipe
Connection wire
Drain Hose