Daewoo DW-121R, DWA-150R Service Manual
CONTENTS
1. Specifications................................................................................................2
2. Operation.....................................................................................................3
3. Wiring Diagram..........................................................................................10
4. Refrigerant Cycle.........................................................................................11
5. Control Block Diagram.................................................................................12
6. Circuit Diagram..........................................................................................13
7. Trouble Shooting..........................................................................................16
8. Key Components of Electronic Circuit............................................................26
9. Disassembly Instructions ...............................................................................28
10. Exploded Diagram and Parts List...................................................................30
Contents
2
1. SPECIFICATIONS
ITEM
MODEL
DWC-121R DWB-121R DWA-121R DWA-150R
Function Cooling only
Power source AC 115V, 60Hz AC 220~240V, 50Hz AC 208~220V, 60Hz
Cooling Capacity
Btu/h 12,100 Btu/h 12,000 Btu/h 12,000 Btu/h 14,018 Btu/h
Kcal/h 3,050 Kcal/h 3,024 Kcal/h 3,024 Kcal/h 3,533 Kcal/h
Energy Efficiency Ratio
Btu/wh 10.1 Btu/wh 9.5 Btu/wh 10.2 Btu/wh 9.4 Btu/wh
Kcal/wh 2.55 Kcal/wh 2.39 Kcal/wh 2.57 Kcal/wh 2.38 Kcal/wh
Dehumidification Pts/h 3.40 Pts/h 3.30 Pts/h 3.61 Pts/h 4.04 Pts/h
Electrical Data
Power Input 1,200 W 1,263 W 1,175 W 1,487 W
Running Current 11.5A 5.6A 5.5A 6.7A
Compressor
Type Rotary
Model QK164CN12 QK196PN22B QK164KN12 QJ196KC23B
Capacitor 40µF/370VAC 35µF/400VAC 25µF/370VAC 25µF/370VAC
Model AM12DWD10-1 A2929CA01A AM12DWD12-1 AM12DWD11-1
Motor
Capacitor 12µF/370VAC 5µF/400VAC 5µF/370VAC 4µF/370VAC
Indoor-Fan Blower-Fan
Outdoor-Fan Propeller-Fan
Refrigerant(R-22)
Control Capillary
Charge Q’ty 680g 700g 740g 790 g
Dimensions
Unit(W x H x D) 23.6(W) x 14.9(H) x 21.0(D) inch (600(W )x 380(H) x 535(D) mm)
Packing(W x H x D) 26.1(W) x 18.1(H) x 22.6(D) inch (663(W )x 460(H) x 573(D) mm)
Weight
Net Weight 88 lbs (38.8Kg) 90.2 lbs (39.8Kg) 88 lbs (38.8Kg) 92 lbs (42Kg)
Gross Weight 89 lbs (40.3 Kg) 97.5 lbs (43Kg) 89 lbs (40.3 Kg) 96 lbs (43.5Kg)
4
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
✽ Do not use the REMOTE CONTROLLER before the lamp lights. If use, the “°F ” temperature display can
change to “°C ” temperature display (only “°F” temperature display model).
Replacing Batteries
6
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
– +
– +
8
(1) When you are going to sleep, select sleep b utton in remocon and the unit controls the room to the desired
temperature. (The unit will not operate after 4 hour)
(2) For changing the temperature.
• Mode I (L1)
• The unit will not operate after 4 hour.
• Mode II (L2)
• The unit will not operate perfectly after 10 hour .
(3) To cancel sleep mode, press the SLEEP button again or press the MODE b utton once. :the SLEEP indicator will
disappear in the display.
In normal operation, there is a time delay of three minutes between turn off and turning back on including
initial power up.
Sleep Mode
3min. Time Delay of Compressor
0 0.5 1.0 HOUR
SET TIME
Desired
Difference
desired temperature
between room
temperature (°C)
0.5°C
0.5°C
0.5°C
Temperature
Fan Speed
(1) Motor speed (high speed, normal speed, low speed).
(2) Remote controller setting fan speed. (H, M, L)
(3) Relation of operating mode between fan speed.
FAN ONLY COOL TURBO
H H H H
M M M -
L L L -
1
1
1
2hr 2hr 2hr 2hr 2hr
Desired
+1˚C
Temperature
+1˚C
SET ON
SET OFF
1°C
1°C
1°C
10
3. WIRING DIAGRAM
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