DAEWOO ELECTRONICS DWC-084R User 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
1

2
1. SPECIFICATIONS
MODEL
ITEM
Function
Power source
Cooling Capacity
Energy Efficiency
Ratio
Dehumidification
Electrical Data
Compressor
Fan Motor
Refrigerant (R-22)
Dimensions
Weight
DWC-064R
6,710
1,691
10.70
2.70
2.13
970
627
5.5
RM5465GQ87
40µF/370VAC
A9525HS601-1
4µF/370VAC
14.46oz(410g)
62.8 lbs(28.5Kg)
66.2 lbs(30.0Kg)
DWC-084R
7,800
1,966
10.80
2.72
2.68
1,220
723
6.5
RM5475GQ87
45µF/370VAC
A9525HS602
7µF/370VAC
16.58oz(470g)
65.1 lbs(29.5Kg)
68.4 lbs(31Kg)
Btu/h
Kcal/h
Btu/Wh
Kcal/Wh
Pts/h
g/h
Power Input (W)
Running Current (A)
Type
Model
Capacitor
Model
Capacitor
Indoor-Fan
Outdoor-Fan
Control
Charge Amount(g)
Unit (WxHxD)
Packing (WxHxD)
Net Weight
Gross Weight
Cooling only
AC 115 V, 60 Hz
ROTARY
Blower-Fan
Propeller-Fan
Capillary
18.9(W)x14.6(H)x19.5(D) Inch (480(W)x369(H)x497(D) mm)
21.1(W)x17.6(H)x21.9(D) Inch (535(W)x446(H)x556(D) mm)

3
1
PARTS OF NAME AND FUNCTION
2. OPERATION
● DWC-064R / DWC-084R
NO PART NAME
1 CABINET
2 BLADE VERTICAL
3 BLADE HORIZONTAL
4 KNOB BLADE
5 GRILLE FRONT
6 INLET GRILLE
NO PART NAME
7 AIR FILTER
8 PANEL CONTROL
9 FRAME GUIDE TOP
10 FRAME WINDOW KIT
11 SHUTTER WINDOW
12 REMOTE CONTROLLER
9
2
4
0
q
8
7
7
1
1
5
5
6
2
4
8
3
3
6
w

4
2
REMOTE CONTROLLER
REMOTE 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. (L1→L2→Cancel)
MODE
• Everytime you push this
button, it is selected as
follow.
(COOLING→TURBO→FAN
→COOLING)
ENERGY SAVE
(COOLING MODE ONLY)
• Whenever you push this
button, the cumulative power
consumption is decreased.
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
ENERGY
SAVE

5
3
REMOTE CONTROLLER DISPLAY
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→Low→High)
ENERGY SAVE
• Whenever you push this
button, the cumulative power
consumption is decreased.
(Cooling mode only)
Room Air-conditioner
ROOM TEMP DESIRED TEMP
TEMP
MODE
FAN
SPEED
POWER
ENERGY
SAVE
FAN
TURBO
COOLING
TIMER
ENERGY
SAVE

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
–+
–+

7
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
(
(

8
(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 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 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.
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 TURBO
HHHH
LLL-
2hr 2hr 2hr 2hr 2hr
Desired
+1˚CTemperature +1˚C
SET ON
SET OFF
1°C
1°C
1°C

9
Energy Save
1. ENERGY SAVE is operated while cooling Mode only.
2
. Desired temperature is changed as follows by pushing ‘ENERGY SAVE’button.
3. When the ‘ENERGY SAVE’button is pushed, the fan speed goes to ‘Low’
4. When the ‘ENERGY SAVE’function is canceled by pushing ‘ENERGY SAVE’button once again, the desired temperature is
return to the former desired temperature.
(1) Cooling Condition
1Fan Speed: High speed
2Set temperature:16˚C(Fixed)
3Compressor and Fan
Turbo Mode(Powerful Cooling)
-1
OFF ON
(Room temperature-18˚C)
01
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 short or open.
hr
‘ENERGY SAVE’
ON ‘ENERGY SAVE’ OFF
1hr
+1°C+1°C-2°C

10
3. WIRING DIAGRAM

11
4. REFRIGERANT CYCLE
Evaporator
Capillary tube
Blower fan
Condenser
Propeller fan
Accumulator
Compressor
M MOTOR
Capillary tube
Charge Quantity
DWC-064R
ID1.4Øx L1200
410g
DWC-084R
ID1.0Øx L400 x 2
470g
Model Name
Contents

12
5. CONTROL BLOCK DIAGRAM
COMP.
SMPS
AC
FAN
MOTOR
88 Segment
Energy Save
Front PCB
Main PCB
Display
Micom
Drive IC
Remocon Signal
Receiver
Fan mode
Turbo mode
A/D
Converter Room
Sensor
Cooling mode
Room Temp
Desired Temp
Timer
Operating Mode
Remote controller
Fan speed
Timer
Energy Save
Temp setting
ON/OFF
Sleep mode
RL1
DC12V RL2,3 Beeper

13
6. CIRCUIT DIAGRAM

14
Part List
NO PART NAME SPEC PARTCODE Q`TY LOC.
1 FUSE 250V 50T 3.15A 5FVLB3152L 1 FUSE
2 FUSE CLIP AFC-520 3107000600 2 FUSE
3 VARISTOR 15G561K D15G561K-- 1 VAR
4 C-LINE ACROSS 275V 104K CLV-B3104M 1 CL1
5 PIN GP881205-2(187) 3108803400 1 CN1
6 C-CERA 104Z,50VDC CCXE1H104M 3 CC1,CC2,CC3
7 C-ELEC 470UF 35V SD CEXE1V477C 1 CE4
8 C-ELEC 10UF 450V SD CEXE2W106C 2 CE1,CE2
9 C-ELEC 100UF 16V SD CEXE1C107C 1 CE3
10 RESISTOR 1/4W-1KJ RD-4K102J- 2 R2,R4
11 RESISTOR 1/4W-100J RD-4K101J- 1 R3
12 RESISTOR 1/4W-2KJ RD-4K202J- 1 R1
13 WAFER YW396-05AVD 3108802900 1 CN3
14 WAFER SMW250-07 3108804100 1 CN2
15 DIODE UF203 DZUF203--- 1 D2
16 DIODE ZENOR 1N5241B DZN5241B-- 1 D3
17 C-CERA 2200PF, 250V CH1BFB222K 1 YC1
18 CHOKE COIL 1mH, 0.5A 52C102K000 1 L1
19 BUZZER DP-2520BA 3105698200 1 BZ1
20 IC REGULATOR KIA7805P 1KA7805AP- 1 IC1
21 RELAY US11-12S 5SC0101310 2 RL2,RL3
22 RELAY UKH-12S 5SC0101210 1 RL1
23 TRANS SMPS 264P 5EMU1916-- 1 TRS1
24 PCB POWER 56X106X1.6T(FR1) 3104302110 1 PCB
25 DIODE BRIDGE S1NB80 DS1NB80--- 1 BD1
26 DIODE ST02D-200 DZST02D200 1 D1
27 IC SMPS TNY264P 1TNY264P-- 1 IC2
28 PHOTO COUPLER TLP421 1TLP421--- 1 PC1
● MAIN PCB ASS`Y (3114302140)

15
NO PART NAME SPEC PART CODE Q’TY REMARK
1 WAFER SMAW250-07 3108804600 1 CN1
2 WAFER SMAW250-02 3108804700 1 CN2
3 S/W TACT JTP1230A 5S50101406 6 SW1,2,3,4,5,6
4 RESISTOR ARRAY 7A 102J RA8K6102J- 1 RA1
5 RESISTOR ARRAY 8A 103J RA8K7103J- 1 RA2
6 RESISTOR 1/4W-12.7KF RN-4K1272F 1 R8
7 RESISTOR 1/4W-5.6KJ RD-4K562J- 1 R1
8 RESISTOR 1/4W-330J RD-4K331J- 1 R9
9 RESISTOR 1/4W-470J RD-4K471J- 7 R10,11,12,13,14,15,16
10 RESISTOR 1/4W-10KJ RD-4K103J- 4 R4,5,6,7
11 RESISTOR 1/4W-1KJ RD-4K102J- 2 R2.3
12 C-ELEC 10UF 16V SS CEXE1C106A 1 CE1
13 C-ELEC 1UF 50V SS CEXE1C105A 1 CE2
14 C-CERA 104Z,25VDC CCXE1E104M 1 CC1
15 C-CERA 103Z,50VDC CCXE1H103M 3 CC2,3,4
16 DIODE 1N4148 DZN4148FTB 6 D1,2,3,4,5,6
17 LED HOLDER SUPPORTER PIECE - 1 88LED SUPPORTER
18 JUMPER 10mm 3109400100 1 JS1
19 LED DLG-302D(GRN) DDLG302D-- 7 L1,2,3,4,5,6,7
20 PCB 63X100X1.6T(FR4) 3104302210 1 PCB(054R,063R)
21 PCB 61X169.5X1.6T(FR4) 3104302220 1 PCB(064R,084R)
22 IC RESET KIA7042P 1KA7042P-- 1 IC2
23 TR C3198Y TZTC3198Y- 1 TR1
24 LED SEGMENT ELD-305GWA DELD305GWA 1 SEG1
25 IC DRIVE TD62004AP 1KD65004AP 1 IC3
26 IC DRIVE TD62783AP 13GT62783A 1 IC4
27 RESONATOR CRTL8.00MSOT 5PCRTL8MS0 1 OSC1
28 IC MICOM TMP47C443VN 13GS3N79-- 1 IC1
29 RECEIVER MODULE 354HF2 1354HF2--- 1 RCV1
●Front PCB ASS’Y(3114302160)
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 (3108402930)

16
7. TROUBLE SHOOTING
1) Error Code 1(Er)
1Check the connector of room air thermistor. (or connecting wire)
2Check soldering of connecting on control P.C.B. (Error of soldering or short)
3Check the resistance of room air thermistor.
“Press the temperature Keys (Up & Down), Error code is displayed.”
Self-Diagnostic Function
The power is applied to the unit
Check the voltage between
“POWER ”and
“RL1 ”of Main P.C.B
3CN1
Check the
Breaker or Fuse
Self Diagnostic
function is ON
Check according to
self Diagnostic function
Main P.C.B defect
Check the unit display
is all off?
Press the ON/OFF button of
Remote Control or Front Panel
Is the unit display all off?
Pull out the power plug
and then insert the power plug
after 5 second
Main P.C.B is normal
Recheck from the beginning
Rating voltage more than 90%
Rating voltage
under 90%
No No
No
Yes Yes
Unit Not Run

17
- Check the following at cooling mode
Check the voltage between
“POWER ”and
“RL1 ”of Main P.C.B
4CN1
Check the compressor wiring
Check the Relay(RL1)
Check the wiring of outdoor unit
Check the compressor
(Check the winding resistance)
Check the compressor capacitor
Check the connecting
wire between Main
P.C.B and the
compressor
Change Relay(RL1)
Change the
compressor.
Check the Main P.C.B
the circuit for relay
driving.
Rating voltage
less than 90%
NG
Open or Short
Rating voltage
less than 90%
Rating voltage more than 90%
Rating voltage more than 90%
OK
Only Compressor Do not Run

PCB DRIVING DESCRIPTION

19
Power Supply(1)
DESCRIPTION
DC Power Supply in circuit needs +12V and +5V. +12V is used for Compressor Driving Relay, Fan Motor
Driving Relay, Buzzer Driving, Swing Motor Driving Relay and LED Display.
DC Power, 12V, is supplying by switching performance of IC2.
And, DC 5V is regulated by IC1.

20
Oscillation(2)
1
28 MHz MICOM
VDD-10%
VSS+10%
Fig 2-1
DESCRIPTION
Oscillatory Frequency drive Micom, it is made up 8MHz resonator oscillatory Freqency.
Ocillatory wave is as following Fig 2-1.