Contents
CONTENTS
1. Specifications..........................................................................................................2
2. Outline and Dimensions.........................................................................................5
3. Operation.................................................................................................................9
4. Wiring Diagram.....................................................................................................23
5. Refrigerant Cycle..................................................................................................25
6. Control Block Diagram.........................................................................................26
7. Electric Circuit Diagram........................................................................................27
8. Trouble Shooting...................................................................................................29
9. Key Components of Electronic Circuit.................................................................48
10. Disassembly Instructions .....................................................................................51
1) Indoor Unit........................................................................................................51
2) Outdoor Unit.....................................................................................................53
3) Exploded Diagram (Indoor Unit)......................................................................55
4) Exploded Diagram (Outdoor Unit)...................................................................60
5) Control Box Assembly......................................................................................66
1. SPECIFICATIONS
¡ DSB-070LH
MODEL
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
Electrical
Data
Compressor
Power Input W 676/693
Starting Current A 18
Type Rotary
Model QB 134PL 12B
Capacitor 25µF/400VAC
DSB-070LH
Indoor Unit Outdoor Unit
Fan
Motor
Refrigerant
(R-22)
Connection
Dimensions (W x H x D) mm 750 x 245 x 174 654 x 549 x 256
Net Weight kg 7.0 34
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)
2
¡ DSB-091LH
MODEL
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
Electrical
Data
Compressor
Power Input W 910/940
Starting Current A 24
Type Rotary
Model RBB100A001 QK 185PN13B
Capacitor 30µF / 450VAC 35µF / 400VAC
DSB-091LH
Indoor Unit Outdoor Unit
Fan
Motor
Refrigerant
(R-22)
Connection
Dimensions (W x H x D) mm 750 x 245 x 174 654 x 549 x 256
Net Weight kg 7.0 34
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)
3
¡ DSB-121LH
MODEL
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
Electrical
Data
Compressor
Power Input W 1,500/1,410
Starting Current A 37
Type Rotary
Model RCB 150A001
Capacitor 35µF/ 400VAC
DSB-121LH
Division Indoor Unit Outdoor Unit
Fan
Motor
Refrigerant
(R-22)
Connection
Dimensions (W x H x D) mm 925 x 285 x 194
Net Weight kg 9.7 34
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)
666 x 552 x 264(Before)
654 x 549 x 256(After)
4
750
Plate Mounting
REMOCON
Connecting Pipe
Grille Insert
174
245
REMOTE CONTROLLER
Frame Grille
Body
Plate Mounting
INDOOR UNIT
2. OUTLINE AND DIMENSIONS
1
¡ DSB-070LH/DSB-091LH
5
REMOCON
Filter - L Filter - R
Grille Insert
Frame Grille
Body
Plate Mounting
Connecting Pipe
Plate Mounting
406
194
285
925
REMOTE CONTROLLER
¡ DSB-121LH
6
256
549
654
Inlet
Inlet
Cabinet Side
Panel Top
Guide Support
Outlet
Foot Cushion
OUTDOOR UNIT
Outlet
Cabinet Front
Foot
Handle
7
Service Valve
¡ DSB-070LH/DSB-091LH/DSB-121LH(After)
Cabinet SideHandleCabinet Front Foot
264
334
Panel Top
Cabinet Back
552
572
Inlet
AIR
Inlet
Outlet
Foot Cushion
Service Valve
666
¡ DSB-121LH(Before)
8
3. OPERATION
REMOTE CONTROLLER
PARTS OF NAME AND FUNCTION
¡ DSB-070LH/DSB-091LH
Indoor Unit
Electrostatic Filter
(option)
Deodorizing Filter
(option)
Air Inlet
Antibacterial
Filter
Fan Direction
(Up, Down)
Air Outlet
Lamp
Remote
Controller
Receiver
Power Plug
Remote Controller
9
¡ DSB-121LH
Power Plug
Electrostatic Filter Deodorizing FilterAir Inlet
Antibacterial
Filter
Air Outlet Fan Direction
(Up, Down)
Remote Controller
Remote
Controller
Receiver
Lamp
REMOTE CONTROLLER
Indoor Unit
10
¡ DSB-070LH/DSB-091LH
Timer (Yellow)
Lights during the time
reservation mode.
Quick (Red)
ON (Red)
Lights when the
operation is going on.
Air clean (Green)
EMR. REMOCON
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 .”
■
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
EMERGENCY REMOTE
ON AIR CLEAN QUICK TIMER
¡ DSB-121LH
Indoor Unit Display Switch P anel
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.
ON (Red)
Lights when the
operation is
going on.
Timer (Y ello w)
Lights during the time
reservation mode.
Remote switch is usally used by Remote
Controller.
Air clean (Green)
Quick(Red)
12
¡ DSB-070LH/DSB-091LH/DSB-121LH(After)
Outdoor Unit
Air Inlet (Side Back)
Connection Wire
Air Outlet
Connecting Pipe
Drain Hose
13
AIR
Air Inlet (side Back)
Air Outlet
Connection
Wire
Connecting
Pipe
Drain Hose
¡ DSB-121LH(Before)
Outdoor Unit
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 T op Panel.
The front locking parts
FRONT SIDE BACK SIDE
The back locking parts
14
REMOTE CONTROLLER
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
¡ DSB-070LH/DSB-091LH/DSB-121LH
Name of Each Button
15
REMOTE CONTROLLER DISPLAY
REMOTE CONTROLLER
+–
+–
REMOTE CONTROLLER
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
¡ DSB-070LH/DSB-091LH/DSB-121LH
Replacing Batteries
Open the cover after
pressing the arrow
1
direction and pulling out.
Put the drycell by §]§^
direction.
2
16
3
Close the cover after
pushing into arrow
direction.
DESCRIPTION OF FUNCTIONS
Unit ON
Unit OFF
SET Time
HOUR
ON
OFF
Unit ON
Unit OFF
SET Time
HOUR
ON
OFF
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)
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
(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".
(1) In the case of receiving ON/OFF signal-"beep" "beep"
(2) And so on-"beep"
17
Fan Speed (Indoor Unit)
0°C
L
M
H
1°C2°C
(R.T-D.T)
(D.T)
L
M
H
012345°C (DT-RT)
(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. (legned: X-no relation)
FAN ONLY COOL
H HHLHH H
MMMLMH M
L LLLLH L
Auto Auto Auto L Auto H Auto
Natural Natural Natural L Natural H Natural
DEHUMI-
DIFICATION
AUTO QUICK HEAT
(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)
(HEATING)
18
Sleep Mode
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)
DT
–0.5°C
–0.5°C
–0.5°C
0°C7°C
Compressor and
Outdoor Fan
OFF
OFF
ON
Set Speed
Indoor Fan
(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: LO W
¡You cannot operate with remote controller.
Frost Prevention of Indoor Unit
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)
19
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.
5 Seconds Time Delay of Indoor Fan Motor
Wnen the speed of indoor fan motor changes, there is a time dela y of 5 seconds at each speed step.
Auto Mode (I)
(1) In Auto Mode (I)
After the indoor fan is operated f or 20 seconds in the Auto Mode (I), the unit will operate automatically b y
selecting operating Mode according to the room temperature
(RT: Room temperature)
ROOM TEMPERATURE
28°C §ZRT
22°C < RT < 28°C
RT §Z22°C
(2) Selecting Operating Mode Again
Room temperature meets desired temperature and the compressor stops running over 30 minutes, then the unit
selects operating Mode again.
OPERA TING MODE
Cooling
Dehumidifier
Heating
FLAP POSITION
Cooling Position
Cooling Position
Heating Position
20
Dehumidification Mode
-1
OFF
ON
(Room temperature-18˚C)
01
-1
OFF
ON
(Room temperature-32˚C)
01
!Desired temperature < Room temperature
Outdoor Fan, Compressor : ON
Indoor Fan : Low speed
@ Desired temperature ¡ˆRoom 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
Quick Mode(Powerful Cooling & Heating)
1) Cooling Mode
ƒƒNN
When the room temperature is higher than 22°C
!F an Speed: Super high speed
@ Air discharge direction: Fixed
# Set temperature: 18°C (Fixed)
$ Compressor and Outdoor F an
The air discharge direction procedure is below
Fixed Up/Down
Up/Down Fixed
ƒƒRR
The option is LEFT/RIGHT direction.
1) Heating Mode
ƒƒNN
When the room temperature is higher than 22°C
!F an Speed: Super high speed
@ Air discharge direction: Fixed
# Set temperature: 18°C (Fixed)
$ Compressor and Outdoor F an
The air discharge direction procedure is below
ƒƒRR
The option is LEFT/RIGHT direction.
COOLING POSITION
HEATING POSITION
Fixed Up/Down
Up/Down Fixed
21
Self-Diagnostic Function
The control will contain diagnostic test to verify the integrity of the system.
(1)Error Code Display P attern
!ON LAMP: ON (Red) LED ON/OFF
@ Error Code
# Only Emergency mode
ERROR CODE
3
DISPLAY PATTERN ERROR CONTENTS
8 seconds
0.5 second
Compressor, Electrical parts of
comp. Gas leak
22
4. WIRING DIAGRAM
OUTDOOR UNIT INDOOR UNIT
FAN MOTOR
BRN
BLUE
BROWN
BLUE
BLU
BLKBLK BLK
WHT
BLU
COMP
BLU
BRN
BRN
YEL/GRN
YEL/GRN
BROWN
YELLOW/GREEN
BRN
BRN
BLU
POWER CORD
BLK
YEL/GRN
CAPACITOR
OUTDOOR
TERMINAL
BLOCK
INDOOR
TERMINAL
BLOCK
YEL
RED
S
C
R
COMPRESSOR
FAN
HERM
C
O/D FAN
4WAY
1
1
1
1
BLK
BLK
RED
RED
BLU
ORG
RED
BLK
RED
PINK
BLU
ORG
YEL
YEL
WHT
BLK
BRN
RED
YEL
GRN
BLU
GRY
BLK
BLK
BLK
BLK
BLK
BLK
2
TRANSFORMER
1 12345678 1 2 1 234
INDOOR
SENSOR
OUTDOOR
SENSOR
LED PCB
2
123
S
C
R
FAN MOTOR
FAN MOTOR
CAPACITOR
SWING
MOTOR
12
12345
Y
2
1
L
Y
2
1
L
1
2
3
4WAY
¡ DSB-070LH/DSB-091LH/DSB-121H
23
MAIN ELECTRIC PARTS
1
¡ DSB-070LH
Fan Motor 3108003800 IC-8417DWKF5A 1
Indoor
Unit
Outdoor
Unit
Fan Motor Capacitor 3106900300 1.0µF 400VAC 1
Fuse 5FVLB3152L 250V 3.15A 1
Transformer 5EPV050120 230V 50Hz 1
Stepping Motor 3108003900 GSP-24SW-061 1
Terminal Block 3108912301 SN-DBW-05P 1
Compressor 3107101200 QB134PL12B 1
Fan Motor 3108004000 IC-9625DWLF5A 1
Dual Capacitor 3109501201 1.8+25µF 400VAC 1
Terminal Block 3108912301 SN-DBW-05P 1
¡ DSB-091LH
Fan Motor 3108003800 IC-8417DWKF5A 1
Indoor
Unit
Outdoor
Unit
Fan Motor Capacitor 3106900300 1.0uF 400VAC 1
Fuse 5FVLB3152L 250V 3.15A 1
Transformer 5EPV050120 230V 50Hz 1
Stepping Motor 3108003900 GSP-24SW-061 1
Terminal Block 3108912301 SN-DBW-05P 1
Compressor
Fan Motor 3108004100 IC-9630DWLF5A 1
Dual Capacitor
Terminal Block 3108912301 SN-DBW-05P 1
Reversing Valve 3104401010 CHV-0104 1
Solenoid coil 3109700110 CHV01AJ 1
PART NAME PART CODE SPEC. QUANTITY REMARK
PART NAME PART CODE SPEC. QUANTITY REMARK
3RC0020KE0 RBB100A001 1
3107101900 QK185PN13F 1
3109502010 1.8+30µF 400VAC 1
3109502030 1.8+35µF 400VAC 1
¡ DSB-121LH
Fan Motor 3108001220 IC-8428DWKG7C 1
Indoor
Unit
Outdoor
Unit
Fan Motor Capacitor 3106900300 1.0uF 400VAC 1
Fuse 5FVLB3152L 250V 3.15A 1
Transformer 5EPV050100 220V/18V 1
Stepping Motor 3108000100 MP28GA (L=400mm) 1
Terminal Block 3108912301 SN-DBW-05P 1
Compressor 3100030CE0 RCB150A001 1
Fan Motor 3108000800 IC-9430DWLC5A 1
Dual Capacitor 3109500700 3.5+25µF 400VAC 1
Terminal Block 3108912301 SN-DBW-05P 1
Reversing Valve 3105401000 VH7-A TYPE 1
Solenoid coil 1
PART NAME PART CODE SPEC. QUANTITY REMARK
24
5. REFRIGERANT CYCLE
Note) If the pipe length exceeds the standard length, add 30g of refrigerant per extra meter .
Contents
Model Name
Capillary T ube
Charge Quantity
Cool
Heat
DSB-070LH
IDØ1.78 x ODØ3.2 x 500L
IDØ1.78 x ODØ3.2 x 700L
900 g
25
DSB-091LH
IDØ1.8 x ODØ3.2 x 800L
IDØ1.78 x ODØ3.2 x 1,000L
1,150 g
DSB-121LH
IDØ1.8 x ODØ3.2 x 500L
IDØ1.8 x ODØ3.2 x 900L
1,060 g
6. CONTROL BLOCK DIAGRAM
Relay RL1
Indoor fan
motor
Compressor
Relay RL2
Outdoor
fan motor
Relay RL3
4 way
valve
TRIAC
DC12V
Operating Mode
Fan Speed
Timer Selection
Flap Position
Unit on lamp
Room air temp.
Indoor coil temp.
Outdoor coil
temp
Air clean lamp
Quick 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
Temp. Setting
ON/OFF
SLEEP
REMOCON
AC220V
50Hz
STEPPING MOTOR
ON/OFF
COMPRESSOR
ON/OFF
DC5V
¡ DSB-070LH/DSB-091LH/DSB-121LH
26
7. ELECTRIC CIRCUIT DIAGRAM
ELECTRIC CIRCUIT DIAGRAM
1
¡ DSB-070LH/DSB-091LH/DSB-121LH
27
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 set point 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 set point.
5. If you press the ON/OFF button during operating the unit, Relay and LED is OFF and the unit is OFF.
28
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
YES
YES
YES
NO
NO
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
more
YES
NO
YES
NO
NO
NO
NO
YES
YES
YES
YES
YES
NO
NO
NO
Is the
unit display
normal?
29
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?
Self-Diagnostic Function
• Error Code •
! 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 RL1 on power P.C.B
@ Check fixing of indoor coil thermistor.
# Check the GAS LEAKAGE of the pipe.
L
Y
30
Neither Indoor Unit nor Outdoor Unit Runs
Confirm following statement.
When the unit operate normally , Sometimes the outdoor unit and indoor unit cannot operate.
! Chec k the function select switch. Is it timer mode?
@ The function select switch locate the sleep mode and is the setting time over?
# Is the setting mode DEHUMIDIFIER mode?
$ When the unit is DEHUMIDIFIER mode while in the auto mode, the outdoor unit and indoor unit does
not run.
The power is applied to the unit
Check the voltge between and
Y
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 second
L
Rating voltage
under 90%
No 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
31
Outdoor Unit Runs but Indoor Fan Do Not Run
Check rotation of indoor fan
Rotate indoor fan by hand
YES
Check input Voltage of Fan
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
NO
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
Check the starting of indoor fan motor
Run again
No
Normal
32
Outdoor Fan and Compressor Do Not
Confirm following statement.
When the unit operate normally , Sometimes the outdoor unit and indoor unit cannot operate.
! Is the setting temperature proper?
@ Is the unit during 3min. Time delay of compressor.
# During frost prevention of lndoor unit.
$ During dehumidifier mode.
Check the voltge between and
Y
of indoor unit terminal
Check the voltge between and
Y
of outdoor unit terminal
Check the voltge between and
Y
of outdoor unit terminal
Check compressor ,
outdoor fan motor individually
L
L
L
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
33
Only Compressor Do not Run
- Check the following at cooling mode
Check the voltge between and
Y
of indoor unit terminal
Rating voltage more than 90%
Check the voltge between and
Y
of outdoor unit terminal
Rating voltage more than 90%
Check the wiring of outdoor unit
Check the compressor
(Check the winding resistance)
OK
L
L
Rating voltage
less than 90%
Rating voltage
less than 90%
NG
Open or Short
Check the control P.C.B
the circuit for relay
driving.
Check the connecting
wire between indoor
and outdoor.
Change the control
P.C.B
Change the
compressor.
Check the compressor capacitor
34
PCB DRIVING DESCRIPTION
3
PCB CIRCUIT DIAGRAM
SHORT
SKIP
HEAT
50Hz
JS6
JS4
JS3
OPEN
DETECT
COOL
60Hz
JS1
SHORT
OPEN
070
091
JS2
SHORT
OPEN
SHORT121 OPEN
P77(HSO)
P76(HSCK)
P75(SO)
P74(SI)
P73(SCK)
P72(PDO/PWM)
P71(INT4)
P70(INT3/TC3)
P07
P06
P05
P04
P03
P02
P01
P00
TEST
RESET
XIN
XOUT
(VASS)VSS
VDD
(XTOUT)P22
(XTIN)P21
(INT5/STOP)P20
P17
P16
(TC2)P15
(PPG)P14
(DVO)P13
(INT2/TC1)P12
(INT1)P11
(INT0)P10
(AIN7)P67
(AIN6)P66
(AIN5)P65
(AIN4)P64
(AIN3)P63
(AIN2)P62
(AIN1)P61
(AIN0)P60
VAREF
CC10
104
9
10
11
12
13
14
15
16
7
6
5
4
3
2
1
8
IC6
65004
CN13
CN2
REMOCON
CC12
222
1K R14
1K R17
JS6
JS1
JS2
RA1
CA1
F4104Z
5A 103J
COMP ERR
1K R16
1K R15
R28
1K
R211K
1K
1K
1K
R20
R19
R18
CN1
G V O
RCV
CC1
104
PCB LED
TIMER
TURBO
AIR
ON
L3
L4
L2
L1
EMERGENCY SW
FLAP
IC1
142
CE3
100µF
16V
+
41
40
39
38
37
36
35
34
33
32
31
30
29
1K
CA1
F4104Z
R26
1K R25
1K R24
1K R23
28
27
REMOCON
POWER FREO.
RA1
5A 10
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 26
25
24
23
22
18
19
20
OSC
8MHz
21
CC13
104 MULTI
R7
CC6
103
CC5
103
330
R6 330
+
CC11
104
CE5
10µF/16V
1
2
3
4
5
6
7
8
7042P
R13
IC5
330
CN10
CN9
I/D SENSOR
O/D SENSOR
070L, 091L
ROOM SENSOR
R10
12.7KF
R11
12.7KF
R9
12.7KF
CC7
103
R8
+
CE4
4.7µF/50V
1K R12
CC9
103
5.6K
6
2
9
10
11
1
12
1
• Circuit Description
CC3
104 CE2
CC2
104
35V
1000µF
CC8
104
test
mild/high
R29
JS3 50/60hz
JS4 heat/cool
16
15
14
13
12
11
10
9
+ +
7805
IC3
7812
IC2
470µF
25V
POWER FREO.
1K R27
TR1
C102M
10K R3
D3
D2
D1
CN6
CN2
TRANS
AC 220V
CN1
VAR
T1
SM3JZ47
L1
130µH
3A
TLP561
PT1
R5
1K 1/2W
RL1
R1
100
SN1
0.1µF
120 Ohm
I/D FAN
CN3
CN4
I/D FAN CAP.
TERMINAL BLOCK
OUT DOOR
UNIT
D4
D6
D5
R2
5.6K
CL1
275V
104K
FUSE
250V
3A
3
3
103
CC4
CC1
104
CC
BZ1
R4
1K
CL
OD
CN8
RL3
RL2
CN7
070L,091L
4WAY
O/D FAN
COMP-COM
COMP-LIVE
4W
IC4
13
4
5
3
7
8
6
CE1
! TEMPERATURE SENSING
@ STEPPING MOTOR DRIVING
# TRIAC DRIVING FOR DIF
$ BUZZER DRIVING
%
COMPRESSOR RELAY
DRIVING
^ AC POWER SUPPLY
& POWER LINE FREQENCY
MONITORING INPUT
* DC POWER SUPPLY
( LED DRIVING
) SELECT SWITCH INPUT
1 RESET CIRCUIT
2 CLOCK GENERA TION
3 MODE OPTION
6
Power Supply(1)
AC 220V
CL1
275V
104K
VAR
FUSE1
3.15A
POWER TRANS
D2
CC1 CE1
D3
D1
D4
104
+
35V
1000µF
IC2
7812
VI VO
G
IC3
7805
VI VO
G
+
25V
470µF
CC2 CC3 CE3CE2
104
+
16V
100µF
104
12V 5V
19
OSC
CC13
104
5V
8M
20
VDD-10%
VSS+10%
DESCRIPTION
DC Po wer Supply in circuit needs +12V and +5V. +12V is used for Compressor Driving Rela y, Triac Driving
Photo Triac, Buzzer Driving Swing, Sweep Motor. A C v oltage of secondary Po wer Transformer is rectified by
Bridge Diode, and it is filtering by Main Condensor CE1.
Filtered DC voltage is about +18V, is regulated +12V DC by Regulator IC7812.
And it is regulated +5V DC by Regulator IC7805.
V AR is serge filter and CC1, CC2, CC3 is Noise filter .
Oscillator(2)
DESCRIPTION
Oscillatory Frequency drive Micom, it is made up 8MHz resonator oscillatory Freqency.
Ocillatory wave is as follo wing Fig 2-1.
37
Fig 2-1
Sensor(3)
Room
PT-K43C
EVA
PT-K43C
5267-04A
CN10
5V
1
2
3
4
R10
12.7K
330
CC6
103
R6
330
R7
R11
12.7K
CC5
10
24
25
MICOM
Room temperature and Evaporator temperature Sensor Input
DESCRIPTION
Number 24, 25 of Micom is Terminal of A/D convertor Input.
Room temperature and Evaporator temperature is sensing by change of Thermister Resistance, Micom is put
in 5V by ratio between R10 (12.7KΩ) and R11 (12.7KΩ).
Relation between temperature and voltage is follo wing Table 3-1.
CC5, 6 is Noise filter.
Temperature
(°C)
-5 1.127 1.127
0 1.378 1.378
5 1.650 1.650
10 1.936 1.936
15 2.228 2.228
Table 3-1
Voltage (V)
No. 1 No. 3
38
T riac Driving(4)
N
L
AC 220V
TO MOTOR
T1
SM3JZ47
L1
12
130µH
3A
SN1
0.1µF
120Ohm
TLP561
PT1
12V
R5
1K
1/2W
IC4
KID 65004
MICOM
38
215
AC220V
TRIGGER
MOTOR
INPUT
LOW SPEED MEDIUM SPEED HIGH SPEED
DESCRIPTION
Number 38 Terminal of Micom is put out Pulse Output, by way of Buffer it is driving Photo Triac is supplied
Trigger Signal.
Trigger Test 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
Fig 4-1
39
HIGH SPEED
LEADER CODE
CUSTOM
CODE
DATA
CODE
CHECK
SUM
TAILER
9ms 4.5ms 16bit 16bit24bit 8bit
Remote Controller(5)
0.56ms 0.56ms1.69ms
1.12ms 2.25ms
bit 0 bit 1
MICOM
13
R14
1K
RA1
5V
CA1
F4104Z
P2
MODE
SELECT
PUSH S/W
DESCRIPTION
Signal from Remote Controller put in only Control Data Signal at Micom Terminal of Number 33, which is gotten
fid of Carrier (38KHz) from Receive Module. Signal Wa v e repeat third as follo wing Fig 5-1.
But in Secondary Wave Custom Code is Re v ersed F ace .
Fig 5-1
Selecting Mode(6)
(SELECT S/W INPUT, OUTPUT)
Fig 5-2
BIT STRUCTURE
DESCRIPTION
There are Mode according to SW position as
following Table 6-1.
According as port of fixed Micom is Low, the unit is
operating as following Table 6-1.
40
POSITION MODE
OPEN REMOCON
GN D EMERGENCY
Table 6-1
Micom Power Supply(7)
VDD 42
CE5
10µF
16V
CC11
104
CC13
104
+
5V
41
40
39
22
21
19
OSC
8MHz
20
VSS
MICOM
DESCRIPTION
MICOM Po wer is supplied 5V at Number 42 using VDD, Number 19, 20 Vsing Oscillator, CC13 is noise filter.
41
Reset(8)
MICOM
18
CC9
103
R12
1K
+
CE4
4.7µF
50V
IC5
7042P
R13
5.6K
5V
4.25V
H
L
t
t
POWER
ON
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 4.25V, and then send Reset Signal.
42
VCC
12V
KID 65004
MICOM
34
611
R4
1K
BZ1
JS5
5V
CA1
F4104Z
1K R17
1K R16
14
15
16
30
29
28
27
1K R15
1K R26
R29
5V
test
mild/high
JS3
50/60hz
JS4
heat/cool
1K R25
1K R24
1K R23
CA1
F4104Z
MICOM
COMP ERR
JS1
RA1
5A 103J
RA1
5A 103J
JS2
Function Selecting(9)
DESCRIPTION
Selecting function is as following table 9-1.
ƒRWhen power source is put at fist, Funtion selection input is recognized.
And when the unit is running the microcomputer ignore variation of funtion selection input.
SHORT OPEN
JS6 SKIP DETECT
JS4 HEAT COOL
JS3 50Hz 60Hz
JS1 JS2
070 SHORT SHORT
091 OPEN OPEN
121 SHORT OPEN
Buzzer Driving(10)
DESCRIPTION
Micom 34 Terminal put out Buzzer Driving Pulse,
its output is driving Buzzer through Buffer .
Ocillatory Frequency of buzzer is selected by
internal Micom.
This unit is setting at 4KHz.
43
MICOM
TRANS
OUTPUT
D5
D6
R2
5.6K
12
CC4
103
TR1
KRC120M
12 1
23
21
R3
10K
R27
1K
VCC
31
DETECT POINT
H
The
Number
31 of
Micom
terminal
AC18V
L
Zero Crossing Detect(11)
DESCRIPTION
It defect Zero Cross part of Trans output voltage, Transistor TR1 is used to put in the Micom.
Detail Driving is as following Fig 11-1.
R19 is Resistance to limit current.
Fig 11-1
44
Ø 4
Ø 3
Ø 2
Ø 1
B
+
6
5
4
3
2
1
12V
IC6
KID65004
CN13
1
MICOM
2
3
4
M1
FOR SWING
Stepping Motor Driving(12)
DESCRIPTION
There are one Stepping Motor for Flap (up and down) and it is used 4 face Drive Method.
It is driving as following Fig 12-1. (Ring Count Method of 8 Status)
Ø 4
Ø 3
Ø 2
Ø 1
(Normal Rotating) (Reversed Rotating)
Fig 12-1
45
REMOTE CONTROLLER ASSMBLY FUNCTIONAL TEST METHOD
2
TEST START
Po wer Supply
Select ON/OFF button
Is Display at the
beginning ON?
Select Mode button
Is it normal?
Select F AN SPEEDbutton
No
No
No
Po wer supply again
Is Display at the
beginning ON?
Yes
ERROR
No
Check the Follo wing
BATTERY SPRING
MICOM
PCB
LCD
Is it normal?
Select F AN DIR. b utton
Is it normal?
Is display at the
begining ON?
Select TEMP. Button (¡ª,¡ )
Is it normal?
No
▲
( ▼ )
No
No
(Whenever y ou selectted Temp .
Button, it is changed by 1°C (18~32°C)
No
ERROR
ERROR
ERROR
ERROR
Select ON/OFF button
46
Is LCD display OFF?
Select TIMER ON Button
No
ERROR
Is it normal
Select Timer Enter Button
TIMER
display?
Select CANCEL Button
Is all display OFF?
Select ON/OFF Button
Select OFF (Timer) Button
No
ERROR
No
ERROR
No
ERROR
(0.5~24 HOUR)
Is it normal?
Select SLEEP Button
SLEEP MODE
Display ON?
Select SLEEP Button
Is display at the
beginning ON?
TEST OK!
No
ERROR
No
ERROR
No
ERROR
47
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
VDD
(XTOUT)P22
(XTIN)P21
(INT5/STOP)P20
P17
P16
(TC2)P15
(PPG)P14
(DVO)P13
(INT2/TC1)P12
(INT1)P11
(INTO)P10
(AIN7)P67
(AIN6)P66
(AIN5)P65
(AIN4)P64
(AIN3)P63
(AIN2)P62
(AIN1)P61
(AIN0)P60
VAREF
P77(HSO)
P76(HSCK)
P75(SO)
P74(SI)
P73(SCK)
P72(PDO/PWM)
P71(INT4)
P70(INT3/TC3)
P07
P06
P05
P04
P03
P02
P01
P00
TEST
RESET
XIN
XOUT
(VASS)VSS
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
Steppping Motor
Driving
Indoor Unit Motor Driving
Buzzer Driving
Remocon Input
Comp Relay Driving
Zero Crosing Detect
Function S/W
Temperature
Sensor Input
LED Driving
Emergency
Mode
Function
S/W
Reset Curcuit
Oscillation
9. KEY COMPONENTS OF ELECTRONIC CIRCUIT
(1) U1 (MICOM)
48
(2) U2, 4 (KID65004) DARLINGTON ARRAYS
IN1 1 16 OUT 1
IN2 2 15 OUT 2
IN 3 3 14 OUT 3
IN 4 4 13 OUT 4
IN5 5 12 OUT 5
IN6 6 11 OUT 6
IN7 7 10 OUT 7
GND 8 9 COMMON FREE
WHEELING DIODES
COMMON
10.5K‰
7.2K‰
3K‰
OUTPUT
GND
INPUT
100K 500
100
100
0.3
10K
6K
500
1K
5K
28K
6K
30pF
2K
5K
200
240
1.4
K
2.7
K
3.3
K
0.19K
INPUT
OUTPUT
GND
SCHEMATIC DIAGRAM
1
2
3
Fin 2 is ground
for Cose 221A.
Case is ground
for Case 1.
10K
INPUT
GND
10K
300
36K
64K
520
26K
60K
29K
20K
20K
40
pF
50K
50 200
300
200
100
16K
210
012
OUTPUT
KID65004AP
(Equivalent Circuit)
(Top View)
(3) U8 (KIA7805P) : VOLTAGE REGULATOR (5VDC)
Pin 1. INPUT
2. GROUND
3. OUTPUT
(4) U7 (KIA7812P) : VOLTAGE REGULATOR (12VDC)
Pin 1. INPUT
2. GROUND
3. OUTPUT
49
(Equivalent Ciircuit)
(5) U9 (KIA7042P) : RESET IC
KIA70
42P
OUTLINE
INPUT
GROUND
OUTPUT
VCC
1
3
2
OUT
GND
50
10. DISASSEMBLY INSTRUCTIONS
INDOOR UNIT
1
¡ DSB-070LH/DSB-091LH
PROCEDURES PHOTOS
1. Stop the Air conditioner and disconnect the power cord from the wall
outlet.
2. Removing the Insert Grille and F rame Grille. (Fig 1~2)
! Dra w up the Insert Grille and remove it.
@ Loosen one screw for fixing the Cover Ter-Block.
# Loosen two screw at the Fr ame Grille.
$ Remove the F rame Grille.
Fig 1
Fig 2
3. Removing the Control Box. (Fig 3)
! Remov e room and coil thermistors.
@ Disconnect the fan motor lead wire from connection at the
Control PCB.
# Disconnect the stepping motor lead wire from connection at the
Control PCB.
$ Remove the select switch from connection at the Control PCB.
% Loosen a screw for fixing ground wire.
^ Remove the Control Box
4. Removing the Drain Pan. (Fig 4)
! Disconnect the Body drain hole. (left and right Body)
@ Disconnect three hook and remove the Drain Pan.
5. Removing the Indoor Evaporator . (Fig 5~6)
! Remov e one scre w f or fixing indoor Evapor ator at the Body.
@ Remove the hook for fixing Brack et Pipe at the back of Body.
# Remove Indoor Evapor ator .
Fig 3
Fig 4
Fig 5
6. Removing the Cross Flow F an. (Fig 7)
! Remov e set scre w f or fixing Motor shaft.
@ Remove Cross Flow Fan.
7. Remove Motor IDU and Bearing Plastic.
Fig 6
Fig 7
51
¡ DSB-121LH
PROCEDURES PHOTOS
1. Stop the Air conditioner and disconnect the power cord from the wall
outlet.
2. Removing the Insert Grille and F rame Grille. (Fig 1~2)
! Dra w up the Insert Grille and remove it.
@ Loosen two special screw for fixing the Cover Ter-Block.
# Loosen three screw at the Body.
$ Remove the F rame Gille .
3. Removing the Control Box. (Fig 3)
! Remov e room and coil thermistors.
@ Disconnect the fan motor lead wire from connection at the
Control PCB.
# Disconnect the stepping motor lead wire from connection at the
Control PCB.
$ Remove the select switch from connection at the Control PCB.
% Loosen a screw for fixing ground wire.
^ Remove the Control Box
Fig 1
Fig 2
Fig 3
4. Removing the Drain Pan. (Fig 4)
! Disconnect the Body drain hole. (left and right Body)
@ Disconnect three hook and remove the Drain Pan.
5. Removing the Indoor Evaporator . (Fig 5~6)
! Remov e three scre w f or fixing indoor Evapor ator at the Body.
@ Remove the hook for fixing Brack et Pipe at the back of Body.
# Remove Indoor Evapor ator .
6. Removing the Cross Flow F an. (Fig 7)
! Remov e set scre w f or fixing Motor shaft.
@ Remove Cross Flow F an.
7. Remove Motor IDU and Bearing Plastic.
Fig 4
Fig 5
Fig 6
Fig 7
52
OUTDOOR UNIT
2
¡ DSB-070LH/DSB-091LH/DSB-121LH(After)
PROCEDURES PHOTOS
1.Stop the air conditioner and disconnect the wire from Indoor Unit to
Outdoor Unit.
2. Disassemble the case. (Fig 1~2)
!
53
¡ DSB-121LH(Before)
PROCEDURES PHOTOS
1.Stop the air conditioner and disconnect the wire from Indoor Unit to
Outdoor Unit.
2. Disassemble the case. (Fig 1~2)
! Remov e the Top Panel. (Loosen two screw and remove six hook)
@ Remove the F ront Cabinet. (Loosen f our screw and f our hook)
# Remove the Side Cabinet and Back Cabinet. (Loosen eight screw)
3. Removing the Propeller Fan. (Fig 3)
! Loosen the Nut f or fixing the Propeller F an.
@ Remove the Plain W asher.
# Remov e the Propeller F an.
4. Removing the Motor ODU. (Fig 4)
! Loosen f our screw at Br ack et Motor.
@ Disconnect the wire at Control Panel and remov e Motor ODU .
Fig 1
Fig 2
Fig 3
5. Removing the Dual Capacitor. (Fig 5)
! Disconnect the wire at Control P anel.
@ Loosen a screw at Clamp Capacitor .
# Remov e the Dual Capacitor .
6. Removing the Over load Protector . (Fig 6~7)
! Loosen a He x Nut at Terminal Cover.
@ Remove the Terminal Cover.
# Remov e the wire at Over load Protector.
$ Remov e the Ov er load Protector .
Fig 4
Fig 5
Fig 6
54
Fig 7
EXPLODED DIAGRAM (Indoor Unit)
3
¡ DSB-070LH/DSB-091LH
55
¡ DSB-070LH/DSB-091LH PART LIST(INDOOR UNIT)
No PART CODE PART NAME Q'TY SPEC REMARK
1 3100400300 BODY 1 HIPS T2.0
2 3108004700 MOTOR IDU 1 IC-8417DWKF5A
3 3101500400 CUSHION MOTOR 2 CR Ø30
4 3106400400 BEARING PLASTIC ASS’Y 1
5 3100053700 FAN CROSS FLOW ASS’Y 1 Ø90.0xL540
6 7485401012 SET SCREW 1 6S-4x10-E MFZN
7 3103002600 HOLDER MOTOR 1 HIPS T2.0
8 3100053800 EVAPORATOR ASS’Y 1
9 3102501200 EVAP. GUIDE 1 PVC T1.0 L536
10 3100603800 BRACKET PIPE 1 HIPS T2.0
11 3108100800 PAN DRAIN 1 HIPS T2.0
12 3106501600 BLADE VERTICAL 3 P.P. T1.5
13 3108003900 MOTOR STEPPING 1
14 3107600400 FLAP 1 HIPS T2.5
15 3101404800 COVER WIRE L 1 HIPS
16 3101404900 COVER WIRE R 1 HIPS
17 3100054200 LED PCB ASS’Y 1
18 3100901600 CAP RUBBER 1 SILICON
19-1 3100508400 CONTROL BOX 1 P.P.+G.F.20%
19-2 5EPV050120 TRANSFORMER 1 DWA-220B
19-3 3106900300 CAPACITOR SH. M. B 1 1.0µF 400VAC
19-4 3100054400 CONTROL PCB ASS’Y 1
19-5 3108912310 TERMINAL BLOCK 1 SN-DBW-05P
19-6 3104896300 SENSOR ID ASS’Y 1 PTM-KD-43C-D2
19-7 3102797910 HARNESS 1 I.D EARTH
19-8 31013A24B1 POWER CORD ASS’Y 1 16A 250V
19-9 7111301611 SCREW TAPPING 2 T1S PAN 3x16 MFZN
20 3100400400 BODY-TOP 1 HIPS T2.0
21 3102200800 FRAME GRILLE 1 HIPS T2.5
22 3104508700 PLATE LED 1 PC SHEET T0.2
23 3104510200 PLATE SWITCH 1 PC SHEET T0.2
24 3101404600 COVER TERMINAL BLOCK 1 HIPS T2.0
25 3102200900 FILTER FRAME 2 P.P. T2.0
26 3102402200 INSERT GRILLE 1 HIPS T2.5
27 3101403900 COVER LED 1
28 3104507200 PLATE MOUNTING 1 SBHG 1 T0.7
29 3101203000 CLAMP WIRE 1 P.P.+G.F.20%
30 7S422X40B1 SPECIAL SCREW 8
31 7112400611 SCREW TAPPING 2 T1S TRS 4x6 MFZN
32 7141400811 SCREW TAPPING 2 T2 PAN 4x8 MFZN
33 7122401211 SCREW TAPPING 1 T2S TRS 4x12 MFZN
MP24GA or GSP-24SW-061
ABS(TRANSPARENCY) T2.0
TT2 TRS SE 4x12 MFZN
56
¡ DSB-121LH
57
¡ DSB-121LH PART LIST(INDOOR UNIT)
No PART CODE PART NAME Q'TY SPEC REMARK
1 3100400201 BODY 1 ABS or HIPS
2 3108001220 MOTOR IDU 1 220V 50/60Hz
3 3101500400 CUSHION MOTOR 2 CR
4 3106400200 BEARING PLASTIC ASS’Y 1
5 3100014400 FAN CROSS FLOW ASS'Y 1 SAN+G. F20%
6 7485401012 SET SCREW 1 6S-4 X 10-E
7 3100014300 EVAPORATOR ASS'Y 1
8 3108100401 PAN DRAIN 1 ABS
9 3106500800 BLADE VERTICAL MN 12 ABS
10 3106300800 BAR BLADE 2 ABS
11 3100700800 BUSHING L 1 POM
12 3100700700 BUSHING R 1 POM
13 3107600300 FLAP 1 ABS
14 3108000100 MOTOR STEPPING 1 MG28GA
15 3100038210 CONTROL BOX ASS'Y 1 BUYER
15-1 3100503101 BOX CONTROL 1 P.P+G.F30%
15-2 5EPV050100 TRANS FORMER 1 DWA220A-50/60Hz
15-3 3106900300 CAPACITOR SH.M.B 1 1.0µF 400VAC
15-4 3100054400 CONTROL PCB ASS'Y 1
15-5 3100054200 LED PCB ASS'Y 1
15-6 3108912301 TERMINAL BLOCK 1 SN-DBW-05P
15-7 3104896300 SENSOR I.D ASS'Y 1 PTM-KD43C-D2
58
¡ DSB-121LH P ART LIST(INDOOR UNIT)
No PART CODE PART NAME Q'TY SPEC REMARK
15-8 3102797910 HARNESS 1 I.D EARTH
15-9 3103400300 KNOB RESET SWITCH 1 ABS
15-10 3100024000 MODE SELECT ASS'Y 1 TS-11 & HARNESS
15-11 3101395060 POWER CORD ASS'Y 1 BUYER
15-12 7111301611 TAPPING SCREW 2 T1S PAN 3 X 16 MFZN
16 3102200401 FRAME 1 ABS BUYER
17 3103600300 LAMP INDICATE 1 MIPS
18 3105500500 WINDOW SENSOR 1 ACRIL
19 3100901000 CAP FRAME L 1 ABS
20 3100900900 CAP FRAME C 1 ABS
21 3100900800 CAP FRAME R 1 ABS
22 3101401701 COVER TER-BLOCK 1 ABS
23 3100017800 FILTER ELECTRO ASS'Y 1
24 3100017900 FILTER CARBON ASS'Y 1
25 3100017700 FILTER PRE ASS'Y 2
26 REMOCON ASS'Y 1 BUYER
27 3102401500 INSERT GRILLE 1 ABS
28 3107500200 EMBLEM 1 URETANE BUYER
29 3100602400 BRACKET PIPE 1 HIPS
30 3101201200 CLAMP BRACKET PIPE 1 HIPS
31 3104503900 PLATE MOUNTING 1 SBHG1
32 3106001600 SPECIAL SCREW 1
33 7S422X40B1 SPECIAL SCREW 13
T2 4 X 16 MFNI LOCKING
TT2 TRS SE 4x12 MFZN
ƒINO 15, 15-11, 16, 26, 28 Will be changed depend on export destination & buyer requirements.
59
30
29
23
31
39
22
21
22
38
17
6
18
33
10 16
28
5
34
42
32
9
8
7
4
2
1
3
35
21
37
25
41
24
40
~
27
26
39
36
4
EXPLODED DIAGRAM (Outdoor Unit)
¡ DSB-070LH/DSB-091LH/DSB-121LH(After)
60
¡ DSB-070LH/DSB-091LH/DSB-121LH(After) PART LIST(OUTDOOR UNIT )
No PART CODE PART NAME Q'TY SPEC REMARK
3100300511
3100300521
1
3100300511
3100300531
3107101180 M8 x L47.5
2 COMP. BOLT 3
310600900 MB x L46.5
3 3102100800 FOOT 2 SECC T1.2
3107101110
4 COMP. GROMMET 3 EPDM
3108134AE0
3107101200 QB 134PL12B 070LH
3107101900
5
3RC0020KE0 RBB100A001
3100030GE0 RCB 150A001 121LH
3100054900
6 CONDENSER ASS’Y 1 L465xW208.5xH508
3100054910
3100037010
7 3100602200 BRACKET SERVICE 1 SECC T1.2
8 3105400700 SERVICE VALVE 1 1/2¡¨
9 3105400800 SERVICE VALVE 1 1/4¡¨
10 3104410710 PIPE COND IN ASS’Y 1 C1220T 070LH/091LH/121H
3104412810
11
3104412820
3104411411
12
3104411420
3100061901
13 3100062001 PIPE FILTER ASS’Y 1 C1220T
3100037800
14 3104400300 PIPE SENSOR 1 C1220T 070LH/091LH/121LH
PAN BASE 3 SECC T1.2
QK 185PN13B
COMPRESSOR ASS’Y 1
PIPE COND OUT ASS’Y 1 C1220T
PIPE OUTLET 1 C1220T
070LH(LG COMP. QB134PL12B)
091LH(LG COMP. QK185PN13B)
091LH(DW COMP. RBB100A00A)
121LH(DW COMP. RCB150A001)
070LH(LG COMP. QB134PL12B)
091LH(LG COMP. QK185PN13B)
091LH(DW COMP. RBB100A001)
121LH(DW COMP. RCB150A001)
070LH(LG COMP. QB134PL12B)
091LH(LG COMP. QK185PN13B)
091LH(DW COMP. RBB100A001)
121LH(DW COMP. RCB150A001)
091LH
070LH(LG COMP. QB134PL12B)
091LH(DW COMP. RBB100A001)
091LH(LG COMP. QK185PN13B)
121LH(DW COMP. RCB150A001)
070LH(LG COMP. QB134PL12B)
091LH(DW COMP. RBB100A001)
121LH(DW COMP. RCB150A001)
091LH(LG COMP. QK185PN13B)
070LH(LG COMP. QB134PL12B)
091LH(DW COMP. RBB100A001)
121LH(DW COMP. RCB150A001)
091LH(LG COMP. QK185PN13B)
070LH(LG COMP. QB134PL12B)
091LH(LG COMP. QK185PN13B)
091LH(DW COMP. RBB100A00A)
121LH(DW COMP. RCB150A001)
61
¡ DSB-070LH/DSB-091LH/DSB-121LH(After) PART LIST(OUTDOOR UNIT )
No PART CODE PART NAME Q'TY SPEC REMARK
3100062100
15
16
17 3102501100 GUIDE SUPPORT 1 SECC T1.2
18 3102402600 GRILLE CONDENSER 1 P.E. 660x525.5xT3.5
19 3100601901 BRACKET MOTOR 1 SBHG1 T1.2
20 3108004100 MOTOR ODU 1 IC-9625DWLF5A 091LH
21 3101801000 FAN PROPELLER 1
22 7400208411 WASHER PLAIN 1 PW-2-8 MFZN
23 7392800011 NUT LOCK 1 M8 x P1.25 MFZN
24 3104201900 PANEL CONTROL 1 SBHG1 T0.8
25 3108912301 TERMINAL BLOCK 1 SN-DBW-05P
26
27 3101201100 CLAMP CAPACITOR 1 SBHG1 T1.0
28 3101202000 CLAMP CORD 1 NYLON
29 3100801200 CABINET FRONT 1 SECC T0.8
30 3102402500 GRILLE DISCHAGE 1 Ø425.5
31 3103502210 LABEL BRAND 1 P.C.FILM T0.4
32 3100801300 CABINET SIDE 1 SECC T0.8
33 3104201800 PANEL TOP 1 SECC T0.8
34 3102600300 HANDLE 1 A.E.S. T2.5 (WH104A)
35 3102101000 FOOT CUSHION 4
36 7112401211 TAPPING SCREW 11 T1S TRS 4X12 MFZN
37 7112401214
38
39 7111301611 TAPPING SCREW 2 T1S PAN 3X16 MFZN
40 7112403011 TAPPING SCREW 3 T1S TRS 4X30 MFZN
41 7S432X40A1 SPECIAL SCREW 1
42 7112401614
3100069100
3100062200
3100038810
3104401010
3105401000 VH7-ATYPE 121LH
3108004000 IC-9625DWLF5A 070LH
3108000800 IC-9430DWLC5B 121LH
3109501201 1.8+25µF 400VAC
3109502030
3109502010 1.8+30µF 400VAC
3109501301 3.5+35µF 400VAC
7112401211
7112402011 T1S TRS 4X20 MFZN 121LH
PIPE REVERSING ASS’Y 1 C1220T
REVERSING VALVE 1
CAPACITOR DUAL 1
TAPPING SCREW+PVC WASHER
TAPPING SCREW 4
TAPPING SCREW+PVC WASHER
CHV-0104 070LH/091LH
ABS+G.F20% (BLACK)
1.8+35µF 400VAC
NBR (HARDNESS 45°¡ 5°)
29 T1S TRS 4X12 MFZN
T1S TRS 4X12 MFZN 070LH/091LH
TT3 TRS SE 4X8 MFZN
5 T1S TRS 4X16 MFZN
070LH(LG COMP. QB134PL12B)
091LH(LG COMP. QK185PN13B)
091LH(DW COMP. RBB100A00A)
121LH(DW COMP. RCB150A001)
070LH(LG COMP. QB134PL12B)
091LH(LG COMP. QK185PN13B)
091LH(DW COMP. RBB100A00A)
121LH(DW COMP. RCB150A001)
62
¡ DSB-121LH(Before)
63
¡ DSB-121LH(Before) PART LIST(OUTDOOR UNIT)
No PART CODE PART NAME Q'TY SPEC REMARK
1 3100300501 PAN BASE 1 SECC
2 3106000900 COMP BOLT 3 M8 X L46.5 MFZN
3 3102100800 FOOT 2 SECC
4 3108134AE0 GRMMET 3 EPDM
5 3100030CE0 COMPRESSOR ASS'Y 1 RCB150A001
6 7400208411 WASHER PLANE 4 M8.4 X 0.D22 X T1.6
7 7392800011 NUT LOCK 4 M8 X P1.25 MFZN
8 3100037000 CONDENSER ASS'Y 1
9 3100015100 BRACKET SERVICE ASS'Y 1
10 3105401100 SERVICE VALVE 1 1/2"
11 3105400700 SERVICE VALVE 1 1/4"
12 7347602011 BOLT HEX 4 M6 X L20 MFZN
13 3100038800 PIPE REVERSING ASS'Y 1
14 3100037800 FILTER ASS’Y 1 C1220T
15 3104503800 PLATE PARTITION 1 SBHG1
16 3100800601 CABINET BACK 1 A.E.S or ABS
17 3100601901 BRACKET MOTOR 1 SBHG1
18 3108000810 MOTOR ODU 1 220-240/50Hz
19 3101801000 FAN PROPELLER 1 ABS+G.F20%
20 3100038410 PANEL CONTROL ASS’Y 1
20-1 3104201301 PANEL CONTROL 1 SBHG1
20-2 3109501301 CAPACITOR DUAL 3.5+35µF 400VAC
64
¡ DSB-121L(Before) PART LIST(OUTDOOR UNIT)
No PART CODE PART NAME Q'TY SPEC REMARK
20-3 3101201100 CLAMP CAPACITOR 1 SBHG1
20-4 3108912301 TERMINAL BLOCK 1 SN-DBW-05P
20-5 3103800300 LOCK TWIST 1 DATL-250
20-6 3101202000 CLAMP CORD 1 NYLON
20-7 7111301611 TAPPING SCREW 2 T1S PAN 3 X 16 MFZN
20-8 7112403011 TAPPING SCREW 3 T1S TRS 4 X 30 MFZN
21 3100800701 CABINET SIDE 1 A.E.S or ABS
22 3100800501 CABINET FRONT 1 A.E.S or ABS
23 3104201201 PANEL ORIFICE 1 P.P + TALK30%
24 3101401900 COVER GRILLE 1 A.E.S or ABS
25 3104201100 PANEL TOP 1 A.E.S or ABS
26 3102600300 HANDLE 1 A.E.S or ABS
27 3104895000 O.D SENSOR ASS’Y 1 PTM-KD43C-D3
28 3102100710 FOOT CUSHION 4 NBR
29 3106001600 SPECIAL SCREW 1
30 7112401614 TAPPING SCREW 4
31 7S422X40B1 SPECIAL SCREW 4
32 7112401214 TAPPING SCREW 12
33 7S432X4018 SPECIAL SCREW 5 TT3 TRS SE 4X8 MFZN
T2 4X16 MFNI LOCKING
T1S TRS 4X16 MFNI+PVC/W
TT2 TRS SE 4X12 MFZN
T1S TRS 4X12 MFNI+PVC/W
34 7112402011 TAPPING SCREW 4 T1S TRS 4X20 MFZN
35 7112401211 TAPPING SCREW 18 T1S TRS 4X12 MFZN
65
5
CONTROL BOX ASSEMBLY
¡DSB-070LH/DSB-091LH
4 3
q
0
5
9
8
2
6
7
LY12
w
e
1
66
¡ DSB-070LH/DSB-091LH
No PART CODE PART NAME Q'TY SPEC REMARK
1 3100054410 CONTROL PCB ASS’Y 1
2 3108912301 TERMINAL BLOCK 1
3 5EPV050120 TRANSFORMER 1
4 3106900300 CAPACIT OR SH.M.B 1 1.0µF 400V A C
5 3104896300 SENSOR ID ASS’Y 1 PTM-KD43C-D2
6 3101300100 POWER CORD ASS’Y 1 16A 250V
7 3102797610 HARNESS 1 I/D COMP
8 3102797150 HARNESS 1 I/D 4WAY V ALVE
9 3102704400 HARNESS 1 O/D MOTOR
10 3102797910 HARNESS 1 I/D EARTH
11 3102704000 HARNESS 1 POWER
12 3102702200 HARNESS 1 TH-3-1
13 3102704500 HARNESS 1 LED PCB
SN-DBW-05P 300V 25A
DWA-220B 220V 50/60Hz
67
¡ DSB-121LH
68
¡ DSB-090LH/DSB-120LH
No PART CODE PART NAME Q'TY SPEC REMARK
1 3100503100 CONTROL BOX 1 P.P+G.F 20%
2 3100054400 CONTROL PCB ASS’Y 1 FR-1
3 3100054200 LED PCB ASS’Y 1 FR-1
4 3103400300 KNOB RESET SWITCH 1 ABS
5 3101395060 POWER CORD ASS’Y 1 BUYER
6 3108912301 TERMINAL BLOCK 1 SN-DBW-05P
7 5EPV050100 TRANS FORMER 1 DWA220A-50/60HZ
8 3106900300 CAPACIT OR SH.M.B 1 1.0µF 400V A C
H1 3102797610 HARNESS I/D COMP 1
H2 3102797500 HARNESS LED PCB 1
H3 3102797410 HARNESS MODE SELECT 1
H4 3102797910 HARNESS I/D EARTH 1
S 3104896300 SENSOR ID ASS’Y 1 PTM-KD-43C-D2
9 3102702200 HARNESS O/D SENSOR 1 6M
69
SERVICE MANUAL
DEAWOO ELECTRONICS CO., LTD
686, AHYEON-DONG MAPOGU,
SEOUL, KOREA.
C.P.O. BOX 8003 SEOUL KOREA
TELEX: DWELEC K28177-8
CABLE:"DAEWOOELEC"
FAX: +82-2-364-5588
TEL: +82-2-360-7114, 8114
http://www.dwe.daewoo.co.kr
S/M NO. : DSB070LH10 PRINTED DATE: APR. 1999
OVERSEAS SERVICE DEPT.
DAEWOO ELECTRONICS CO., LTD
Service Manual
Split System Air
Conditioner
Model: DSB-070LH
DSB-091LH
DSB-121LH
DAEWOO ELECTRONICS CO., LTD.
72
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