Daewoo DWC-121R User manual

40
Service Manual
Window Type
Room Air Conditioner
Model: DWC-121R / (DWC-124R)
DWA-122R / (DWA-124R)
DWB-122R / (DWB-124R)
DWA-121R / DWB-121R
DWB-123R / DWA-150R
DWA-151R / (DWA-152R)
DAEWOO ELECTRONICS CO., LTD.
✔ 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. :DWC121R040

CONTENTS
1. Specifications................................................................................................2
2. Operation.....................................................................................................3
3. Wiring Diagram..........................................................................................12
4. Refrigerant Cycle.........................................................................................13
5. Control Block Diagram.................................................................................14
6. Circuit Diagram..........................................................................................15
7. Trouble Shooting..........................................................................................18
8. Key Components of Electronic Circuit............................................................28
9. Disassembly Instructions ...............................................................................30
10. Exploded Diagram and Parts List...................................................................33
Contents
1

2
1. SPECIFICATIONS
ITEM MODEL
Function
Power source AC 115V, 60Hz
Cooling Capacity
Btu/h 12,100 12,000 12,000 11,700 12,000 11,500 14,018 14,000
Kcal/h 3,050 3,024 3,024 2,950 3,024 2,898 3,533 3,528
Btu/wh 10.1 10.2 10.1 9.9 10.0 10.0 9.4 9.8
Kcal/wh 2.55 2.57 2.55 2.49 2.52 2.52 2.38 2.47
Dehumidification Pts/h 3.40 3.61 3.14 3.30 2.66 2.71 4.04 3.93
g/h 1,545 1,640 1,427 1,500 1,209 1,836 1,786 1,232
Electrical Data
Power Input (W) 1,200 1,175 1,184 1,180 1,150 1,150 1,487 1,420
Running Current (A) 11.5 5.5 5.5 5.2 5.4 5.4 6.7 6.5
Type Rotary
Compressor Model QK164CN12 QK164KN12 RBA115A001 QK196PN13A RBB110A011 RBF110A011 QJ196KC23B RCA135A001
Capacitor 40µF/370VAC
Model
Motor Capacitor 12µF/370VAC
Indoor-Fan Blower-Fan
Outdoor-Fan Propeller-Fan
Refrigerant(R-22) Control Capillary
Charge Q’ty (g) 680 740 790 730 690 760 790 780
Dimensions Unit(W x H x D)
Packing(W x H x D)
Weight Net Weight 88 lbs (38.8Kg)
Gross Weight 89 lbs (40.3 Kg)
30µF/400VAC
A2925CA070/OBM-2501P2
5µF/400VAC
25µF/370VAC
AM12DWD11-1/OBM-2503U1
4µF/370VAC
90.2 lbs (39.8Kg)
97.5 lbs (43Kg)
92 lbs (42Kg)
96 lbs (43.5Kg)
Energy Efficiency
Ratio
AC 208~230V, 60Hz AC 220~240V, 50Hz
Cooling only
AC 220~230V, 50Hz AC 240V, 50Hz
25µF/370VAC
AM12DWD12-1/OBM-2502U1
5µF/370VAC
AM12DWD10-1/
OBM-2501K
88 lbs (38.8Kg)
89 lbs (40.3 Kg)
23.6(W) x 14.9(H) x 21.0(D) inch (600(W ) x 380(H) x 535(D) mm)
26.1(W) x 18.1(H) x 22.6(D) inch (663(W ) x 460(H) x 573(D) mm)
AC 208~230V, 60Hz
DWC-121R
(DWC-124R) DWA-121R DWA-122R (DWA-124R) DWB-121R DWB-122R (DWB-124R) DWB-123R DWA-150R DWA-151R (DWA-152R)
• DWA-124R, DWB-124R, DWC-124R, DWA-152R;
Except detachable Double Grille Front, the general spec of this model is same to one of the old models.

3
1
PARTS OF NAME AND FUNCTION
2. OPERATION
● DW*-121R/DW*-122R/DWB-123R/DWA-150R/DWA-151R (NOTE:* ➔ A or B or C)
NO PART NAME
1 AIR FILTER
2 GRILLE FRONT
3 CABINET
4 BLADE VERTICAL
5 PANEL CONTROL
6 REMOTE CONTROLLER
NO PART NAME
7 BLADE HORIZENTAL
8 AIR VENT
9 FRAME GUIDE TOP
10 FRAME WINDOW KIT
11 SHUTTER WINDOW
6
9
3
2
0
7
q
4
8
5
3
2
7
4
8
5
1
1
RoomAir-conditioner
RoomAir-conditioner

4
NO PART NAME
1 AIR FILTER
2 GRILLE
3 CABINET
4 BLADE VERTICAL
5 PANEL CONTROL
6 REMOTE CONTROLLER
NO PART NAME
7 BLADE HORIZENTAL
8 AIR VENT
9 FRAME GRILLE
10 FRAME GUIDE TOP
11 FRAME WINDOW KIT
12 SHUTTER WINDOW
6
4
0
q
7
w
8
59
5
3
2
1
3
4
8
2
7
1
9
RoomAir-conditioner
RoomAir-conditioner
● DW*-124R/DWA-152R (NOTE:* ➔ A or B or C)

5
2
REMOTE CONTROLLER
REMOCON SIGNAL TRANSMITTER
TIMER/CANCEL
• Everytime you push this button,
timer is set as follow.
(1Hr→2Hr→3Hr→4Hr→5Hr→6Hr→8
Hr→10Hr→12Hr→16Hr→20Hr→24Hr
→CANCEL).
After the unit is timed, if this button is
pushed, timer is canceled.
SLEEP
• SLEEP mode is selected as
follow. (L1→L2→Cancel)
MODE
• Everytime you push this button,
it is selected as follow.
(COOLING→TURBO→FAN→
COOLING)
AUTO SWING
• Everytime you push this button,
the auto swing mode is toggled.
TEMPERATURE
• It is the button to set the room in
the desired room temp.
The temp can be set within a
range from 16°C (60°F) to 32°C
(90°F) by 1°C (1°F)
POWER ON/OFF
• To turn the unit ON, push this
button. To turn the unit OFF,
push this button, again.
FAN SPEED
• Everytime you push this button,
it is selected as follow.
(High→Mid→Low→High)
TIMER/
CANCEL
FAN SPEED
TEMP
SLEEP
MODE
AUTO
SWING

6
3
REMOTE CONTROLLER DISPLAY
Room Air-conditioner
FAN
TURBO
COOLING
ROOM TEMP
TEMP
DESIRED TEMP
TIMER
SENSOR
MODE POWER
FAN
SPEED AUTO SWING
88
TEMP./TIMER DISPLAY
•It displays the temperature and the timer.
MODE DISPLAY
•It displays the operating mode.
REMOCON SIGNAL RECEIVER
TEMPERATURE SET BUTTON
•It is the button to set the desired
room temperature.
The temperature can be set
within a range from 16°C (60°F)
to 32°C (90°F) by 1°C (1°F)
POWER ON/OFF BUTTON
•To turn the unit ON, push this button.
To turn the unit OFF, push this button
again.
MODE SELECT BUTTON
•Everytime you push this button, It is selected as
follow. (COOLING→TURBO→FAN→COOLING)
FAN SPEED BUTTON
•Everytime you push this button, It is selected as
follow. (High→Mid→Low→High)
AUTO SWING BUTTON
•Everytime you push this button, the auto swing mode is toggled.
● SELECT ONE ALTERNATIVE PAGE 6 or PAGE 7

7
MODE FAN SPEED AUTO SWING POWER
Room Air-conditioner
Fan
Turbo
Cooling
Room temp
Desired temp
Timer
TEMP
SENSOR
TEMP./TIMER DISPLAY
•It displays the temperature and the timer.
MODE DISPLAY
•It displays the operating mode.
REMOTE SIGNAL RECEIVER
TEMPERATURE SET
•It is the button to set the desired
room temperature.
The temperature can be set
within a range from 16°C (60°F)
to 32°C (90°F) by 1°C (1°F)
POWER ON/OFF SWITCH
•To turn the unit ON, push this button.
To turn the unit OFF, push this button
again.
MODE SELECT
•Everytime you push this button, It is selected as
follow. (Cooling→Turbo→Fan→Cooling)
FAN SPEED
•Everytime you push this button, It is selected as
follow. (High→Mid→Low→High)
AUTO SWING
•Everytime you push this button, the auto swing mode is toggled.

8
Replacing Batteries
Remove the COVER from
the back of the remote
controller.
•Slide the cover
according to the arrow
direction
Insert two battaries.
•Be sure that the (+) and
(–) directions are correct
•Be sure that both batteries
are new
Re-attach the cover.
•Slide it back into position
•Do not use rechargeable batteries such batteries differ from standard dry cells in shape,
dimensions and performance.
•Remove the batteries from the remote controller if the air conditioner is not going to be used for
an extended length of time.
1 2 3
–+
–+

9
If you set time in OFF-Timer Mode, the unit will stop at the set time.
If you set time in ON-Timer Mode, the unit will run at the set time.
(1) Range of setting temperature: 16~32°C
(2) Setting temperature: Operating temperature of compressor
If the Unit Display receive the signal of Remote Controller, you can hear the signal "beep –" or "beep, beep".
OFF-Timer
4
DESCRIPTION OF FUNCTIONS
Unit ON
Unit OFF
SET Time HOUR
ON
OFF
ON-Timer
Unit ON
Unit OFF
SET Time HOUR
ON
OFF
Control of Room Temperature
Buzzer
COMP (ON)
(COOLING)
Desired temperature
COMP (OFF)
-1˚CTemperature
*Room temperatrue
< setting temperature
Compressor OFF
Room temperature
> setting temperafure
Compressor ON
(
(