Daewoo DWA-182RH User manual

Manual de servicio
Acondicionador de Aire Tipo Ventana
Modelo:

CONTENTS
1. Specifications................................................................................................2
2. Operation.....................................................................................................3
3. Wiring Diagram..........................................................................................13
4. Refrigerant Cycle.........................................................................................14
5. Control Block Diagram.................................................................................15
6. Circuit Diagram..........................................................................................16
7. Trouble Shooting Guide ...............................................................................19
8. Key Components of Electronic Circuit............................................................30
9. Disassembly Instructions ...............................................................................32
10. Exploded Diagram and Parts List...................................................................33
Contents

2
1. SPECIFICATIONS
ITEM MODEL DWA-182RH
Power Source V/Ph/Hz AC 208~230V / 1 / 60Hz
Capacity Btu/h 18,000
(Cooling & Heating) Kcal/h 4,530
Dehumidification l /h 2.4
Power Input(W) Cooling 2,000
Heating 1,700
Running Current(A) Cooling 11.0
Heating 10.0
Type Rotary
Compressor Model RCA180U001
Capacitor 35µF/370VAC
Overload Protector MRA12138-696(T1)
Model A2951GA011
Fan Motor Capacitor 7.5µF/400VAC
Indoor-Fan Blower Fan
Outdoor-Fan Propeller Fan
Control Capillary
Refrigerant (R-22) Capillary Tube ID Ø1.4 x L1000 x 2
Amount (g) 1,350
Dimensions (WxHxD) Unit (mm) 660 x 430 x 705
Packing (mm) 711 x 525 x 757
Weight (Kg) Net Weight 57.7
Gross Weight 61.7
Electrical
Data
Conditions by JIS C9812

3
1
PARTS OF NAME AND FUNCTION
2. OPERATION
NO PART NAME
1 AIR FILTER
2 GRILL FRONT
3 CABINET
4 BLADE VERTICAL
NO PART NAME
5 PANEL CONTROL
6 REMOTE CONTROLLER
7 BLADE HORIZENTAL
8 AIR VENT
6
3
1
2
7
4
8
5

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
→8Hr→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. (LP→Cancel)
MODE
• Everytime you push this
button, it is selected as
follow.
(COOLING→HEATING→
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→Low→High)
TIMER/
CANCEL
FAN SPEED
TEMP
SLEEP
MODE
AUTO
SWING

5
3
REMOTE CONTROLLER DISPLAY
Room Air-conditioner
FAN
HEATING
COOLING
ROOMTEMP
TEMP
DESIREDTEMP
TIMER
SENSOR
MODE POWER
FAN
SPEED AUTO SWING
TEMP./TIMER DISPLAY
•It displays the temperature and the timer.
MODE DISPLAY
•It displays the operating mode.
REMOCON 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→HEATING→FAN→COOLING)
FAN SPEED
•Everytime you push this button, It is selected as
follow. (High→Low→High)
AUTO SWING
•Everytime you push this button, the auto swing mode is toggled.
(When the fan stops in heating mode, the auto swing is also
stopped and restarts when the fan goes run.)

6
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
–+
–+

7
4
OPERATION INSTRUCTION
FUNCTION
POWER ON
Push POWER button
COOLING MODE
Push the ‘MODE’button until
‘COOLING’lamp lights.
HEATING MODE
Push the ‘MODE’button until
‘HEATING’lamp lights.
FAN Delay in heating mode
Change desired room temperature
Push the ‘TEMP▲▼’button.
Change ‘FAN SPEED’
Push the ‘FAN SPEED’button.
OPERATION
1. The unit starts working.
(It is delayed 30 seconds after main
power source is supplied.)
when running the unit again after
once having stopped it, please wait
for over 3 minutes.
2. Default mode is ‘COOLING’mode.
3. Default desired room temperature is
‘26°C’(79°F).
And fan speed is ‘HIGH’.
1. Operating modes are changed as
follows by pushing “MODE”button.
(COOLING→HEATING→FAN→
COOLING)
2. The compressor and fan work.
3. In this mode you can change fan
speed and desired temperature at any
time.
4. SLEEP mode and ON/OFF TIMER
can be selected.
(By remocon button only)
1. Operating modes are changed as
follows by pushing “MODE”button.
(COOLING→HEATING→FAN→
COOLING)
2. The compressor and fan work.
3. In this mode you can change fan
speed and desired temperature at any
time.
4. SLEEP mode and ON/OFF TIMER
can be selected.
(By remocon button only)
There are 10 seconds time delay of the
Fan Motor, when compressor is starts or
stops.
1. The desired room temperature is
changed within a range from 16°C
(60°F) to 32°C (90°F) by 1°C.
1. FAN SPEED is changed as follows by
pushing “FAN SPEED”button.
(HIGH→LOW→HIGH)
DISPLAY
1. Current room temperature is
displayed.
2. ‘COOLING’lamp lights.
3. ‘ROOM TEMP’lamp lights.
1. Current room temperature is
displayed.
2. ‘COOLING’lamp lights.
3. ‘ROOM TEMP’lamp lights.
1. Current room temperature is
displayed.
2. ‘HEATING’lamp lights.
3. ‘ROOM TEMP’lamp lights.
no display
1. It display desired room temperature
when ‘TEMP’button is pushed.
2. ‘DESIRED TEMP’lamp lights.
3. After a few seconds, display is
changed to current room temperature
and ‘ROOM TEMP’lamp lights.
1. It displays as follows.
2. After a few seconds, display is
changed to current room
temperature.
FAN
HEATING
COOLING
ROOMTEMP
DESIREDTEMP
TIMER
FAN
HEATING
COOLING
ROOMTEMP
DESIREDTEMP
TIMER
FAN
HEATING
COOLING
ROOMTEMP
DESIREDTEMP
TIMER
FAN
HEATING
COOLING
ROOMTEMP
DESIREDTEMP
TIMER
HIGH LOW
POWER
MODE
TEMP
MODE
TEMP
FAN
SPEED
FAN SPEED
or
MODE
MODE
or

8
FUNCTION
FAN MODE
Push the ‘MODE’button until
‘FAN’lamp lights.
ON/OFF AUTO SWING
Push the ‘AUTO SWING’button.
OFF TIMER
Push the ‘TIMER/CANCEL’
button when unit is working.
(REMOCON ONLY)
OPERATION
1. The Fan works only.
2. In this mode, the unit circulate room
air.
3. Fan speed can be changed.
1. Auto swing function is toggled.
2. Air out-flow direction is changed
automatically. (left/right direction)
3. While the fan stops in heating
mode, the auto swing is also
stopped and restarts when the fan
goes run.
1. Timer is set to as follows by pushing
“TIMER/CANCEL”button.
(1hr→2hr→3hr→4hr→5hr→6hr→8hr
→10hr→12hr→16hr→20hr→
24hr→cancel)
2. Unit is off after timer is over.
3. If you want to cancel timer, push
this button again at any time.
DISPLAY
1. Current room temperature is
displayed.
2. ‘FAN’lamp lights.
3. ‘ROOM TEMP’lamp lights.
There is no change in display.
1. ‘TIMER’lamp lights.
2. Set time is displayed.
3. After a few seconds, display is
changed to current room
temprature. and ‘ROOM TEMP’
lamp lights.
4. At this time, operation mode is
displayed current setting mode.
FAN
HEATING
COOLING
ROOMTEMP
DESIREDTEMP
TIMER
FAN
HEATING
COOLING
ROOMTEMP
DESIREDTEMP
TIMER
FAN
HEATING
COOLING
ROOMTEMP
DESIREDTEMP
TIMER
AUTO
SWING
AUTO
SWING
TIMER/
CANCEL
MODE
MODE
or
or

9
FUNCTION
ON TIMER
Push the ‘TIMER/CANCEL’
button when unit is off.
(REMOCON ONLY)
SLEEP MODE
Push the ‘SLEEP’button in
‘COOLING’mode and
HEATING MODE. (REMOCON
ONLY)
Defrost the heat-exchanger of
the outside (in heating mode)
OPERATION
1. Timer is changed to as follows by
pushing “TIMER/CANCEL”button.
(1hr→2hr→3hr→4hr→5hr→6hr→8hr
→10hr→12hr→16hr→20hr→
24hr→cancel)
2. The unit starts working after set time
is over. (by the operation mode and
last setting temperature before the
unit is off.)
3. If you want to cancel timer, push this
button again at any time.
1. SLEEP MODE is changed as
follows by pushing “SLEEP”button.
(LP→Cancel)
* LP Mode
–The unit is off after 4 hours.
–The desired Temp is increased
3°C (5.4°F) for 4 hours in Cooling
mode.
–The desired temp is decreased
3°C (5.4°F) for 4 hours in heating
mode.
–Auto swing is selected.
–Fan speed is set to ‘LOW’.
2. Set proper desired room
temperature, fan speed and auto-
swing mode.
3. This mode can be selected in
‘COOLING’and ‘HEATING’mode
only.
The unit runs 50 minutes
The unit will start defrost function when
the temperature of the heat exchanger
of the outside arrived at the programed
temperature.
If not arrived at the programed
temperature, the unit continuousiy runs
the heating mode.
While the defrost function is working
the unit runs cooling cycle but the fan
stops.
DISPLAY
1. ‘TIMER’lamp lights.
2. Setting time is displayed.
3. After a few seconds, display is
changed to current room
temperature. and ‘ROOM TEMP’
lamp lights.
1. ‘LP’is displayed.
2. ‘ROOM TEMP’and ‘DESIRED
TEMP’lamp is off.
no display
FAN
HEATING
COOLING
ROOMTEMP
DESIREDTEMP
TIMER
TIMER/
CANCEL
SLEEP
•ROOM TEMPERATURE DISPLAY.
Over 45°C or 100°F
5°C~45°C or 41°F~99°F
Below 5°C (41°F)
DISPLAY TEMPERATURE

10
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
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˚C+1˚CRoom
Temperature
Desired
temperature
COMP (ON)
(HEATING)
COMP (OFF)
+3˚CRoom
Temperature
5
DESCRIPTION OF FUNCTIONS

11
(1) When you are going to sleep, select sleep button 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 (Cooling)
•The unit will not operate after 4 hour.
• Mode (Heating)
•The unit will not operate perfectly after 4 hour.
(3) To cancel sleep mode, press the SLEEP button again or press the MODE button 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. (but when the unit resets the time delay is 30 seconds)
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°C0.5°C0.5°C
Temperature
Fan Speed
(1) Motor speed (high speed, low speed).
(2) Remote controller setting fan speed. (H, L)
(3) Relation of operating mode between fan speed.
FAN ONLY COOL HEAT
HHHH
LLLL
111
0 0.5 1.0 HOUR
SET TIME
Desired
Difference
desired temperature
between room
temperature (°C)
1°C1°C1°C
Temperature
1°C
1°C
1°C

12
Auto Swing
(1) When you push this button, in remocon the left/right flap move to the position of keeping the room temperature
comiortable.
(2) The air discharge direction procedure is below.
Auto swing Fixed
DE-ICE OPERATION
Self-Diagnostic Function
The control will contain diagnostic test to verify the integrity of the system.
(1)Error Code Display
ERROR CODE 88 LED DISPLAY ERROR CONTENTS
1 •Room air thermistor open.
•Heat exchanger thermister open
2•Room air thermister short
•Heat exchanger thermister short
Entering de-ice operation(to turn cooling cycle).
1. The micro-computer chip is check the temperature of condensor, After 50 minutes since the units
starts on heating mode.
2. If the Temperature is below -4˚C, the De-ice function will start.
3. Now, the unit turned to cooling operation but fan motor is off.
Back to heat mode.
1. On the de-ice operation if the temperature is going over 15˚C.
2. Or 10minutes passed on the de-ice operation.
3. Now the unit turned to heating mode.
Remark : This de-ice operation is always repeat in heating mode when satisfying of the condition to
enter the de-ice operation.
ON
Time
50minutes 10minutes
Sensing
Temperature
Compressor
(Heater sump)
Fan motor
(Reversing valve)
(Lamp)
ON
(-4°C) (15°C)
ON
OFF

13
3. WIRING DIAGRAM

14
4. REFRIGERANT CYCLE
Evaporator
Blower fan
MOTOR
Reversing
Valve
Accumulator
Propeller fan
Condenser
Refrigerant flow(COOLING)
Refrigerant flow(HEATING)
Capillary Tube
M
Compressor

15
5. CONTROL BLOCK DIAGRAM
Relay 3, 4
Auto Swing
Motor
4-Way Fan Motor Compressor
88 LED
Front PCB
Fan mode Lamp
Heating mode Lamp
Remocon
Signal
Receiver
Cooling mode Lamp
Room Temp Lamp
Desired Temp Lamp
Timer Lamp
Operating Mode
Remote controller
Fan speed
Timer selection
Auto swing
Temp setting
ON/OFF
Sleep
A/D Converter
Beeper
Drive Ic Tr
Room Temp
Sensor
Relay 2Relay 5 Relay 1
MICOM
Main PCB
DC 12V
DC 12V
DC 12V
DC 5V
DC 5V
Transformer

16
6. CIRCUIT DIAGRAM

6

17
NO PART NAME SPEC PART CODE Q’TY REMARK
1 IC MICOM TMP47P443N –1U1
2 IC DRIVE TD62004AP 13GT62004A 1 U3
3 IC DRIVE TD62783AP 13GT62783A 1 U2
4 IC REGULATOR KIA7812P 1KA7812AP- 1 U4
5 IC REGULATOR KIA7805P 1KA7805AP- 1 U5
6 IC RESET KIA7042P 1KA7042P-- 1 U6
7 FUSE CLIP AFC-520 3107000600 2 FUSE
8 FUSE 125V, 5A 5FULB502L- 1
9 RELAY CS11-12SH 5SC0101128 4 RL2
10 RELAY POWER G4A-1A 5SC010141A 1 RL1
11 RESONATIOR CST8.00MTW 4850L03610 1 OSC1
12 VARISTOR 15G561K D15G561K-- 1 VAR1
13 DIODE 1N4004 DZN4004A-- 4 D1-4
14 DIODE 1N4148 DZN4148A-- 1 D5
15 HEAT SINK 22(H)X23X17 3105797200 1
16 PCB 단면, FR-1 3104302100 1
17 BUZZER BM-20K 3105698100 1 BZ
18 TR KRC3198Y TZTC3198Y- 1 Q1
19 WAFER YW396-03AV 3108802500 1 CN4
20 WAFER YPW500-04 3108805500 1 CN5
21 WAFER YW396-03AV(BK) 3108802700 1 CN6
22 WAFER YW500-02V 3108803000 1 CN7
23 WAFER SMW250-02 3108804200 1 CN3
24 WAFER SMW250-08 3108804000 1 CN2
25 WAFER SMW250-10 3108802100 1 CN1
26 WAFER YF254S-02 3108804300 1 TEST
27 PIN GP881206-2 3108803500 2 POWER
28 RESISTOR 300, 1/4W, 5% RD-4K301J- 1 R4
29 RESISTOR 1K, 1/4W, 5% RD-4K102J- 1 R7
30 RESISTOR 5.6K, 1/4W, 5% RD-4K562J- 1 R1
31 RESISTOR 10K, 1/4W, 5% RD-4K103J- 5 R2,6,15,16
32 RESISTOR 12.7K, 1/4W, 5% RD-4K1272F 1 R5, R3
33 RESISTOR 300, 1/2W, 5% RD-2K301J- 7 R8-14
34 RESISTOR ARRY 9A 103J RA8K8103J- 1 RA1
35 RESISTOR ARRY 8A 102J RA8K7102J- 1 RA2
36 C-ELEC 1000µF 35V SD CEXE1V108C 1 C2
37 C-ELEC 470µF 25V SD CEXE1E477C 1 C5
38 C-ELEC 100µF 16V SD CEXE1C107C 1 C7
39 C-ELEC 10µF 50V SD CEXE1C106C 1 C10
40 C-ELEC 4.7µF 50V SD CEXE1H475C 1 C11
41 C-CERA 103Z 50VDC CCXE1H103M 1 C13
42 C-CERA 104Z 25VDC CCXE1EH104M 7 C2-4,6,
9,12,13
43 JUMPER 10MM 3109400100 14 J1-6,9,12
J14-16,18
44 JUMPER 6MM 3109400200 4 J7-8,13,17
Part List
● MAIN PCB ASS’Y(3104302530)
✔ Caution: In this Service 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)

18
NO PART NAME SPEC PART CODE Q’TY REMARK
1 LED DISPLAY 88 3103003700 1 DISP
2 C-CERA 103Z 50VDC CXCH1H103M 1 C1
3 RECEIVE MODULE PIC-26043TH2 1PC26043TH 1 REMO
4 LED DLSO-5031D DDLS05031D 3
5 LED DLG-5031D DDLG5031D- 3
6 SWITCH TACT JTP1212 3109300900 6
7 DIODE 1N4148 DZN4148A-- 6 D1-6
8 WAFER SMAW250-08 3108804800 1 CN1
9 WAFER SMAW250-10 3108802400 1 CN2
10 PCB 단면, FR-1 3104302200 1
11 JUMPER 10mm 3109400100 7 J1-7
●Front PCB ASS’Y(3104302400)
NO PART NAME SPEC PART CODE Q’TY REMARK
1 CASE-A ABS380 3101100510 1
2 CASE-B BAS380 3101100600 1
3 CUSHION KEY SILICON 6U 3101405900 1
4 SPRING A SUS304 3105100600 1
5 SPRING B SUS304 3105100700 1
6 COMMON SPRING SUS304 3105100800 1
7 SCREW A M1.9*6.5 3108495110 3
8 RESONATOR RJ-455BL 5ZAR455--- 1 X1
9ELEC 10VB 47M CEAF10475M 1 C1
CONDENSOR
10 CHIP CONDENSOR CETMK212F221Z-T HCQD220MQ 2 C2,3
11 CHIP RESISTOR 1/10W 1.5 OHM HRFT159JCP 1 R1
12 CHIP RESISTOR 1/10W100K OHM HRFT104JCP 3 R2,3,4
13 TRANSISTOR STN2222 TSTN2222- 1 Q1
14 LED IR SI5312-H DS5312-H-- 1 IR1
15 IC REMOCON PT2221 14EZPT2221 1 U1
16 COVER BTRY ABS 3101405900 1
17 PCB REMOCON FR-1 3104302000 1
18 HOLDER ABS 3103003400 1
REMOCON
●Remocon ASS’Y(3108402900)
✔ Caution: In this Service 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)