Daewoo DMB-1822LH User Manual
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Daewoo DMB-1822LH User Manual

Daewoo DMB-1822LH User Manual

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Contents
CONTENTS
1. SPECIFICATIONS.....................................................................................................2
2. CONFIGURATION.....................................................................................................4
3. OUTLINE AND DIMENSIONS .................................................................................5
4. INSTALLATION SECTION......................................................................................10
5. OPERATION............................................................................................................26
6. WIRING DIAGRAM .................................................................................................41
7. REFRIGERANT CYCLE.........................................................................................45
8. CONTROL BLOCK DIAGRAM...............................................................................46
9. TROUBLE SHOOTING...........................................................................................48
10. PCB DRIVING DESCRIPTION ............................................................................54
11. KEY COMPONENTS OF ELECTRONIC CIRCUIT ...........................................76
12. DISASSEMBLY INSTRUCTIONS ........................................................................80
1) Indoor Unit ........................................................................................................80
2) Outdoor Unit .....................................................................................................83
3) Exploded Diagram (Indoor Unit)......................................................................84
4) Exploded Diagram (Outdoor Unit)...................................................................92
5) Control Box Assembly......................................................................................96
6) Control Panel Assembly.................................................................................102

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  • Page 1: Table Of Contents

    Contents CONTENTS 1. SPECIFICATIONS.....................2 2. CONFIGURATION.....................4 3. OUTLINE AND DIMENSIONS .................5 4. INSTALLATION SECTION..................10 5. OPERATION......................26 6. WIRING DIAGRAM ....................41 7. REFRIGERANT CYCLE..................45 8. CONTROL BLOCK DIAGRAM................46 9. TROUBLE SHOOTING...................48 10. PCB DRIVING DESCRIPTION ................54 11. KEY COMPONENTS OF ELECTRONIC CIRCUIT ...........76 12.
  • Page 2 Btu/h Dehumidification 1.15 1.15 Running Current Electrical 1880 1840 Power Input Data Starting Current 49 A Type Rotary (DAEWOO : China) Compressor Model RBB095M011 RBB095M011 Capacitor 25uF/370VAC 25uF/370VAC Indoor Unit Outdoor Unit Indoor Unit Outdoor Unit Type Cross flow fan...
  • Page 3 10.1 10.1 Running Current Electrical 1300 1300 2200 2200 Power Input Data Starting Current 49 A Type Rotary (DAEWOO : China) Compressor RBB095M011 Model RCB120M001 Capacitor 25uF/370VAC 25uF/370VAC Indoor Unit Outdoor Unit Indoor Unit Outdoor Unit Type Cross flow fan...

  • Page 4: Configuration

    A & B units are different DMB-2122LH 9000 Btu/h * You should individually install and operate each A and B units in DMB-2112LH and DMB-2122LH. * You can exchangeably install and operate each A and B unit in DMB-1822LH and DMB-1832LH.

  • Page 5: Outline And Dimensions

    3. OUTLINE AND DIMENSIONS INDOOR UNIT DMB-1822LH unit A & B, DMB-2112LH unit B (9000 BTU/h)
  • Page 6 DMB-1832LH unit A & B, DMB-2122LH unit B (9000 BTU/h)
  • Page 7 DMB-2112LH unit A (12000BTU/h)
  • Page 8 DMB-2122LH unit A (12000BTU/h)
  • Page 9 OUTDOOR UNIT DMB-1822LH/1832LH/2112LH/2122LH...

  • Page 10: Installation Section

    4. INSTALLATION SECTION BASIC ACCESSORIES This Installation section explains how and where to connect this new air conditioner. Please read make sure all acces- sories are included as shown below and read manual thoroughly. This Installation section is provided to assist the per- son knowledgeable in air conditioner installation and should not be installed by anybody who is not thoroughly familiar with this type of installation.

  • Page 11: Optional Accessories

    OPTIONAL ACCESSORIES ACCESSORIES NOT SUPPLIED WITH THE UNIT: No. Description Part No. Material Size Remark Drain Hose Extension 3103200400 ID19.6 X 2m PVC Pipe Tape 2TQ1007502 75W X 0.1T X 25m 1/4" Copper Tube X L5M 3104402600 Wrapped with Copper Tubing Extension insulator tube 3/8"...
  • Page 12 INSTALLATION DIAGRAM Below is an overview for the connection of the Indoor unit to the Outdoor unit. The pages following will give detailed instructions for full installation. Remember to read the complete Installation section and follow all the safety instructions fully when installing the Indoor and Outdoor units.

  • Page 13: Selecting A Site

    INSTALLATION SELECTING A SITE: INDOOR UNIT OUTDOOR UNIT • Do not install the unit in an area with direct sunlight, near • Do not install the unit in an area near heat sources, heat sources (radiator, etc.), or an area where leakage of exhaust fans, or an area where leakage of flammable gas flammable gas may be expected.
  • Page 14 INSTALLING THE AC CONNECTION WIRE TO THE INDOOR UNIT FOR AC POWER SUPPLY The AC Connection wire is used to supply AC from the outdoor unit to the indoor units. To install AC connection wire, follow the procedures below. NOTE: •...
  • Page 15 4. Connect the wires to the housing and terminals on the control board individually according to the outdoor uint connection. indoor terminal indoor terminal Unit A Unit B not insert plug Connection Connection Cable Cable Unit A Unit B Power Outdoor terminal Outdoor <INDOOR UNIT (Control Box)>...
  • Page 16 MOUNTING (INDOOR UNIT) The Indoor unit must be mounted before connecting the AC connection wire, drain hose and copper tubing. To mount, follow the procedures below: 1. The tubing can be extended in 4 directions as shown 2. Make sure the drain hose and copper tubing are below.

  • Page 17: Connecting Copper Tubes

    CONNECTING COPPER TUBES To connect the copper tubes, follow the procedures below: 1. Remove the flare nut stoppers from the inside unit. 2. Remove the plastic stoppers from the tubing. Connect Determine the location of the copper tubing and the large and small copper tubing to the respective where the bends will be.
  • Page 18 INSTALLING THE AC CONNECTION WIRE TO THE OUTDOOR UNIT FOR AC POWER SUPPLY The AC connection wire is used to supply AC from the Indoor unit to the Outdoor unit. To install the AC connection wire, follow the procedures below. 1.
  • Page 19 4. To connect wires, loosen the screw in the Terminal Block and insert the correct wires like following figure. Connect the Brown wire to the “L” connection, the Yellow/Green wire to the “ ” connection, the Blue wire to the “N”...
  • Page 20 CONNECTING SIGNAL WIRES BETWEEN INDOOR UNITS AND OUTDOOR UNIT The signal wires are used to inter-communicate indoor and outdoor’s signal, and attached to the indoor unit at first. To install the signal wires to outdoor unit, follow the procedures below. 1.

  • Page 21: Applying Putty And Inserting Wall Cap

    TAPING UP THE WIRE/TUBES/HOSE After running the wire, hose and tubing outside, tape them up as shown below to insulate. 1. Tape the two copper tubes, drain hose (and the 2. Begin wrapping from the point the tubing comes out of electrical wiring if local codes permit) together with the outdoor unit and continue to the hole in the wall.

  • Page 22: Air Purging

    AIR PURGING Indoor Unit Air and moisture remaining in the refrigerant system may create adverse conditions as indicated below: • pressure in the system rises. • operating current rises. • cooling efficiency drops. • moisture in the refrigerant circuit may freeze and block capil Outdoor Unit lary tubing.
  • Page 23 This completes air purging with a vacuum pump. The air Vacuum conditioner is now ready to test run.. Pump Freon Extra Charge STANDARD INDOOR Change am't(g) Model LENGTH(m) UNIT per 1m DMB-1822LH DMB-1832LH DMB-2112LH DMB-2122LH...

  • Page 24: Test Run

    TEST RUN Check that all tubing and wiring have been completed correctly. Check again that the wide and narrow tube service valves are fully opened. Turn on the power and run the system. Service Valve Construction • Valve Position Closed The valve systems of both the wide and narrow tubes are turned all the way in.
  • Page 25 3-W ay V alve 3-way valve(Liquid Side) 3-way valve(Gas Side) Works Shaft position Shaft position Service port Shipping Closed Closed Closed (with valve cap) (with valve cap) (with cap) Air purging Open Closed Open (Installation) (counter-clockwise) (clockwise) (push-pin or with vacuum pump) Operation Open...

  • Page 26: Operation

    5. OPERA TION NAME AND FUNCTION OF PARTS Indoor Unit 9000 BTU/h Class (DMB-1822LH unit A & B, DMB-2112LH unit B) Electrostatic Filter Air Inlet Deodorizing Filter removes dust and removes bad smells particles from the air from the air...
  • Page 27 1 2 0 0 0 B TU/ h Cla ss (DM B -2 1 1 2 LH unit A ) Electrostatic Filter Air Inlet Deodorizing Filter removes dust and removes bad smells particles from the air from the air Signal wire Antibacterial Filter Remote removes dust and prohibits...
  • Page 28 INDOOR UNIT (DMB-2112LH unit A (12000BTU/h)) Indoor Unit Display Switch Panel Remote Control Signal Receiver This place is the part to receive the signal if it receives EMERGENCY REMOTE EMERGENCY REMOTE the signal, you can hear the signal “beep”. QUICK TIMER When the remote controller is lost or out- CLEAN...
  • Page 29 INDOOR UNIT (DMB-2122LH unit A (12000BTU/h)) Indoor Unit Display Switch Panel Remote Control Signal Receiver This place is the part to receive the signal if it receives the signal, you can hear the signal “beep”. EMR. REMOCON Timer (Yellow) When the remote controller is lost or out- ON (Red) Lights-on during the time Lights-on...
  • Page 30 INDOOR UNIT (DMB-1822LH unit A or B, DMB-2112LH unit B (9000BTU/h)) Indoor Unit Display Switch Panel Remote Control Signal Receiver This place is the part to receive the signal if it receives the signal, you can hear the signal “beep”.
  • Page 31 INDOOR UNIT (DMB-1832LH unit A or B, DMB-2122LH unit B (9000BTU/h)) Indoor Unit Display Switch Panel Remote Control Signal Receiver This place is the part to receive the signal if it receives the signal, you can hear the signal “beep”. EMR.

  • Page 32: Service Valves

    Outdoor Unit AIR IN Connection Cover Remove cover to access the AC connection to the indoor unit. AIR OUT Service Valves The indoor and outdoor units are connected by copper tubes which are connected here.

  • Page 33: Remote Controller

    REMOTE CONTROLLER Name of Each Button Display AUTO Displays information pertaining to unit. ON/OFF Button Press to turn the unit on or off. TEMPERATURE Buttons Press to raise or lower FAN SPEED Button the desired temperature. Press to select the fan speed (High "...
  • Page 34 R EM O TE CO N TR O LLER DIS P LA Y MODE Indicators (Auto/Quick/Cool/Fan/Dehumidifier/Heat) Lights to indicate the mode selected. AUTO FAN Indicators FAN DIRECTION Indicators Lights to indicate Lights to indicate the the fan speed. fan direction. NATURAL Indicator Lights to indicate the speeds simulating a breeze.
  • Page 35 DESCRIPTION OF FUNCTIONS OFF-Timer If you set time in OFF-Timer Mode, the unit will stop at the set time. Unit ON Unit OFF SET Time HOUR ON-Timer If you set time in ON-Timer Mode, the unit will run at the set time. Unit ON Unit OFF SET Time...
  • Page 36 Fa n Speed (Indoor Unit) (1) Motor speed (High speed, middle speed, low speed). (2) Remote controller setting fan speed. (Auto, L, M, H, Natural) (3) Relation of operating mode between fan speed. DEHUMI- FAN ONLY COOL AUTO QUICK HEAT DIFICATION Auto Auto...

  • Page 37: Sleep Mode

    Sleep Mode (1) When you are going to sleep, select sleep switch and the unit controls the room to the desired temperature. (The unit will not operate after 4 hour) (2) For changing the temperature. +0.5°C +0.5°C –0.5°C +0.5°C –0.5°C –0.5°C HOUR HOUR...

  • Page 38: Emergency Operation

    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: Quick Preset temperature:18 : Cooling, 32 : Heating) Fan speed: High You cannot operate with remote controller.

  • Page 39: Dehumidification Mode

    Dehumidification Mode Desired temperature < Room temperature Outdoor Fan, Compressor : ON Indoor Fan : Low speed > = Desired temperature Room temperature Compressor : 3 min/ON, 5 min/OFF Fan Speed : low speed < = Room temperature Compressor : OFF Fan speed : Low speed Air Discharge Direction(only remocon operation) The air discharge direction procedure is below.
  • Page 40 Self-Diagnostic Function The control will contain diagnostic test to verify the integrity of the system. LED BLINK PATTERN CASE NOTE CODE1 Room Sensor open or Short • Continuously working to fix room temperature 18°C in heating mode. • Continuously working to fix room 0.2S temperature 32°C in cooling mode ON + Airclean LAMP...

  • Page 41: Wiring Diagram

    6. WIRING DIAG RAM DM B -1 8 2 2 / 1 8 3 2 LH...
  • Page 42 M A I N E LE C T R I C P A R T S DM B-1 8 2 2 / 1 8 3 2 LH PART NAME PART CODE SPEC. QUANTITY REMARK Fan Motor 3108008700 YDK-8-4B Fan Motor Capacitor 3106900300 1.0uF 400VAC Indoor...
  • Page 43 DM B -2 1 1 2 / 2 1 2 2 LH...
  • Page 44 DM B-2 1 1 2 / 2 1 2 2 LH PART NAME PART CODE SPEC. QUANTITY REMARK Fan Motor 3108008700 YDK-8-4B Fan Motor Capacitor 3106900300 1.0uF 400VAC Indoor Fuse 5FVLB3152L 250V 3.15A Unit (9K) Stepping Motor 3108003900 GSP-24SW-061 Terminal Block 3108914100 JXO-CH-3P Fan Motor...

  • Page 45: Refrigerant Cycle

    7. REFRIG ERANT C YC LE Classes 9000 Btu/h Class 12000 Btu/h Class Contents Capillary Tube ID 1.6 x L1270 ID 1.6 x L1000 Charge Quantity 750 g 1150 g 1) DMB-1822/1832LH unit A&B, DMB-2112/2122LH unit B. 2) DMB-2112/2122LH unit A.

  • Page 46: Control Block Diagram

    8. C O NTRO L BLO C K DIAG RAM IN DO O R PA R T Operating Mode Unit on lamp Remote Signal receiver Fan Speed Air clean lamp Emergency Timer Selection Quick lamp Operation Flap Position Timer lamp Temp.
  • Page 47 OUT DOOR PART OD sensor RL 1 Comp(B) in DOOR unit RL 2 4W(A) A/D Converter RL 3 4W(B) Communication RL 4 Relay Out put RL 5 COMP(A) Micro Driver Controller DC POWER TRANS 12V, 5V Former DC 12V AC 220V...
  • Page 49 Note 1) Neither indoor unit nor outdoor unit runs. Check the following points first. (There are following 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.
  • Page 50 Neither Indoor Unit nor Outdoor Unit Runs Confirm following statement. When the unit operates normally, Sometimes the outdoor unit and indoor unit cannot operate. Check the function is it timer mode? The function is in 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 sometimes does not run.
  • Page 51 Outdoor Unit Runs but Indoor Fan Does Not Run Check rotation of indoor fan Check the Fan Motor bearing and fan Rotate indoor fan by hand Check the power P.C.B. Rating voltage Check input Voltage of Fan Motor connector at power P .C.B under 85% The circuit for triac control Rating Voltage more than 90%...
  • Page 52 Outdoor Fan and Compressor Do Not Run 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.
  • Page 53 Only Compressor Does not Run - Check the following at cooling mode Check the control P .C.B Rating voltage Check the voltge between the circuit for relay of indoor unit terminal less than 85% driving. Rating voltage more than 90% Check the connecting Rating voltage wire between indoor...

  • Page 54: Pcb Driving Description

    10. PC B DRIV ING DESC RIPTIO N P C B C I R C U I T D I A G R A M DM B-1 8 2 2 / 2 1 1 2 / 2 1 2 2 LH (O utdoor)
  • Page 56 DM B-1 8 2 2 / 2 1 1 2 / 2 1 2 2 LH (9 K indoor)
  • Page 58 DM B-2 1 1 2 / 2 1 2 2 LH (1 2 K indoor)
  • Page 60 OUTDOOR CONTROL PCB ASS'Y PART NAME SPEC LOC. WAFER YW396-03AVD WAFER YW396-03AVD(BLACK) WAFER YW500-02V GP881205-2(187) WAFER YFW800-01D WAFER YFW800-01D(RED) WAFER SMW250-05 CN10 WAFER SMW250-05(RED) WAFER SMW250-02 WAFER SMW250-02(RED) DIODE 1N4004 TAPE D1,2,3,4,5,6 C-MULTI 104Z, CR0561B-Z5U CC11 C-CERA 104Z,50VDC CC1,2,3,8,9 C-CERA 103Z,50VDC CC4,5,6,7,10 C-ELEC...
  • Page 61 INDOOR CONTROL PCB ASS'Y PART NAME SPEC LOC. WAFER YW396-03AV(RED) WAFER YW396-05AV WAFER YW396-03AV WAFER SMW250-05 WAFER SMW250-05(RED) WAFER SMW250-02 WAFER SMW250-08 WAFER SMW250-06 WAFER 5267-04A CN11 WAFER YFAW254-02 TEST C-CERA 104Z,50VDC CC1,2,8,9 C-CERA 103Z,50VDC CC3,4,5,6,7,10,11,12 C-ELEC 470uF 25V SD C-ELEC 100uF 16V SD C-ELEC...
  • Page 62 Power Supply(1) I.D.U Communication line Zero cross O.D.U DESCRIPTION DC Power Supply in circuit needs +12V and +5V. +12V is used for Triac Driving Photo Triac, Buzzer Driving Swing, Sweep Motor. And it is regulated +5V DC by Regulator IC7805. Oscillator(2) DESCRIPTION Oscillatory Frequency drive Micom, it is made up 8MHz resonator oscillatory Freqency.
  • Page 63 Sensor(3) Room temperature and Evaporator temperature Sensor Input I/D SENSOR MICOM 12.7KF ROOM SENSOR 12.7KF 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 R9 (12.7KΩ) and R10 (12.7KΩ).
  • Page 64 Triac Driving(4) AC 220V TLP561 130µH MICOM 0.1µF 120Ohm SM3JZ47 TRI C102M TO MOTOR 1/2W DESCRIPTION Number 13 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.
  • Page 65 R em ote Controller(5 ) DES CR IP TIO N 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 Wave repeat third as following Fig 5-1. But in Secondary Wave Custom Code is Reversed Face.
  • Page 66 Micom Power Supply(7) VDD 42 10µF MICOM 8MHz DESCRIPTION MICOM Power is supplied 5V at Number 42 using VDD, Number 19, 20 Using Oscillator.
  • Page 67 Reset(8) MICOM 5.6K 7042P 10.3 4.7uF/50V DESCRIPTION Voltage less than about 0.8V put in Micom Terminal of Number 18 and then Micom reset. Reset IC detect Power ON and Voltage less than 4.25V, and then send Reset Signal. Vcc (+5V) 4.25V DELAY TIME FOR POWER ON...
  • Page 68 I/D FAN RPM SETTING F5 104Z 6A 103J heat/low cool/low heat/high MICOM cool/high monitoring DESCRIPTION Indoor Fan Motor RPM is set by each registance. (R27, R28, R29, R30, R31) Buzzer Driving(10) DESCRIPTION MICOM Micom 35 Terminal put out Buzzer Driving Pulse, its output is driving Buzzer through Buffer.
  • Page 69 Zero Crossing Detect(11) KRC120M MICOM CC12 5.6K 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. AC18V Number 31 of Micom...
  • Page 70 Stepping Motor Driving(12) Ø 1 Ø 2 FOR SWING MICOM Ø 3 Ø 4 KID65004 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...
  • Page 71 Communication circuit (13) Micom C102M CC11 A1270 DESCRIPTION Each 2 ports 34, 32 are using communication between I.D.U and O.D.U.
  • Page 72 OUTDOOR CONTROL PCB ASS'Y Pow er Supply (1 ) AC 220V 275V 7812 104K 7805 FUSE1 VI VO VI VO 3.15A 100 F 470 F 2200 F POWER TRANS DES CR IP TIO N DC Power Supply in circuit needs +12V and +5V. +12V is used for Triac Driving Photo Triac, Buzzer Driving Swing, Sweep Motor.
  • Page 73 Sensor(3) Room temperature and Evaporator temperature Sensor Input MICOM O/D SENSOR 12.7kF CN13 DESCRIPTION Number 13 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 R14 (12.7KΩ) Relation between temperature and voltage is following Table 3-1.
  • Page 74 Micom Power Supply(5) VDD 28 VDD 42 10µF MICOM 8MHz DESCRIPTION MICOM Power is supplied 5V at Number 28 using VDD, Number 1, 2 Using Oscillator.
  • Page 75 Reset(6) MICOM 5.6K 7042P 4.7uF/50V DESCRIPTION Voltage less than about 0.8V put in Micom Terminal of Number 3 and then Micom reset. Reset IC detect Power ON and Voltage less than 4.25V, and then send Reset Signal. Vcc (+5V) 4.25V DELAY TIME FOR POWER ON RESET...
  • Page 76 Communication circuit (7) A1270 CN11 A1270 R6 1K CN12 C102 DESCRIPTION Each port 7, 8, 9, 10 is using communcation between I.D.U and O.D.U. Relay Control Circuit (8) RL 1 65004 RL 2 RL 3 RL 5 RL 4 DESCRIPTION Relay is controlled by Drive ICS, IC5, IC6...
  • Page 77 REMOTE CONTROLLER ASSMBLY FUNCTIONAL TEST METHOD TEST START Power supply again Power Supply Is Display at the beginning ON? Select ON/OFF button Check the Following BATTERY SPRING MICOM Is Display at the beginning ON? Select Mode button Is it normal? ERROR Select FAN SPEED button Is it normal?
  • Page 78 ERROR Is LCD display OFF? Select TIMER ON Button ERROR Is it normal Select Timer Enter Button ERROR display? TIMER Select CANCEL Button Is all display OFF? ERROR Select ON/OFF Button Select OFF (Timer) Button (0.5~24 HOUR) ERROR Is it normal? Select SLEEP Button SLEEP MODE ERROR...

  • Page 79: Key Components Of Electronic Circuit

    11. KEY COMPONENTS OF ELECTRONIC CIRCUIT (1) IC1 (MICOM) INDOOR PCB P77(HSO) P76(HSCK) (XTOUT)P22 Steppping Motor Driving P75(SO) (XTIN)P21 P74(SI) (INT5/STOP)P20 P73(SCK) P72(PDO/PWM) P71(INT4) (TC2)P15 P70(INT3/TC3) (PPG)P14 Buzzer Driving (DVO)P13 Communication out (INT2/TC1)P12 Remocon Input LED Driving (INT1)P11 Communication input (INTO)P10 Zero crossing detect Indoor unit...
  • Page 80 (2) IC1 (MICOM) OUTDOOR PCB XOUT Oscillation HOLD(KEO) RESET R92(SCK) Reset circuit R91(SO) Relay control output R71(PULSE) R90(SI) R72/VAREF R83(T1) R40(AINO) R82(INT1) R41(AIN1) R81(T2) Communication circuit R42(AIN2) R80(INT2) R43(AIN3) R50(AIN4) R51(AIN5) Temperature R52(AIN6) sensor input R53(AIN7)
  • Page 81 (3) U2, 4 (KID65004) DARLINGTON ARRAYS IN1 1 16 OUT 1 KID65004AP IN2 2 15 OUT 2 COMMON IN 3 3 14 OUT 3 INPUT OUTPUT IN 4 4 13 OUT 4 10.5KΩ IN5 5 12 OUT 5 7.2KΩ IN6 6 11 OUT 6 IN7 7 10 OUT 7...
  • Page 82 (6) U9 (KIA7042P) : RESET IC KIA70 INPUT OUTLINE GROUND OUTPUT...

  • Page 83: Disassembly Instructions

    12. DISASSEMBLY INSTRUC TIO NS I N D O O R U N I T DMB-1822 / 1832LH unit A&B, DMB-2112 / 2122 unit B (9K) PROCEDURES PHOTOS 1. Stop the Air conditioner and disconnect the power cord from the wall outlet.
  • Page 84 DMB-2112LH unit A (12K) PROCEDURES PHOTOS 1. Stop the Air conditioner and disconnect the power cord from the wall outlet. Fig 1 2. Removing the Insert Grille and Frame Grille. (Fig 1~2) Draw up the Insert Grille and remove it. Loosen two special screws fixed at the Cover Ter-Block.
  • Page 85 DMB-2122LH unit A (12K) PROCEDURES 1. Stop the Air conditioner and disconnect the power cord from the wall outlet. Fig 1 2. Removing the Insert Grille and Frame Grille. (Fig 1~2) Draw up the Insert Grille and remove it. Loosen the screw fixed at the Cover Ter-Block. Loosen two screw at the Frame Grille.

  • Page 86: Outdoor Unit

    OUTDOOR UNIT PROCEDURES PHOTOS 1.Stop the air conditioner and disconnect the wire from indoor unit to out door unit. 2. Disassemble the case. (Fig 1~2) Fig 1 1 Remove the Top Panel. (Loosen nine screws) 2 Remove the Service Cover (Loosen two screws) 3 Remove the Front Cabinet.

  • Page 87: Exploded Diagram (Indoor Unit)

    E X P LO D E D D I A G R A M ( I n d o o r U n i t) DMB-1822LH, DMB-2112/2122LH unit B (9K)
  • Page 88 DMB-1822LH, DMB-2112/2122LH unit B (9K)  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)
  • Page 89 DMB-2112LH unit A (12K)
  • Page 90 DMB-2112LH unit A (12K)  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) PART CODE PART NAME Q'TY...
  • Page 91 PART CODE PART NAME Q'TY SPEC REMARK 15-8 3102797910 HARNESS I/D EARTH I.D EARTH 15-9 3103400300 KNOB RESET SWITCH ABS T2.5 15-10 3112703500 HARNESS SELECT S/W MODE SELECT 15-11 7111301611 TAPPING SCREW T1S PAN 3 X 16 MFZN 3102200401 FRAME GRILLE HIPS T2.5 BUYER 3103600300...
  • Page 92 DMB-2122LH unit A...
  • Page 93 DMB-2122LH unit A  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) PART CODE PART NAME Q'TY...
  • Page 94 PART CODE PART NAME Q'TY SPEC REMARK 7111301611 SCREW TAPPING T1S PAN 3x16 MFZN 3114302110 CONTROL PCB ASS`Y DMB-2112/2122LH(12K, UNIT A) 5EPV050120 TRANSFORMER DWA-220B 3116501000 BLADE VERTICAL P.P T1.5 (GY176A) 3117600100 FLAP HIPS T2.0 (GY171A) 3100700700 BUSHING R DSB-123L/LH/PH 3112200700 FRAME GRILLE HIPS T2.5 3114504200...

  • Page 95: Exploded Diagram (Outdoor Unit)

    EXPLODED DIAGRAM (Outdoor Unit) DMB-1822/1832LH...
  • Page 96 3111500400 CUSHION RUBBER NBR 54x63.5 3RC0020KM1 COMPRESSOR ASS'Y RBB095M011 3RC0020KM1 COMPRESSOR ASS'Y RBB095M011 3101500800 COMP. GROMMET DAEWOO 3110046800 CONDENSER ASS'Y L568.4 x H575 x W44 3112400700 GRILLE COND PP Net 820x570xT3.5 3112501000 GUIDE POST ASS'Y 3114003700 PLATE PARTITION ASS'Y SGCC T0.8...
  • Page 97 DMB-2112/2122LH...
  • Page 98 3111500400 CUSHION RUBBER NBR 54x63.5 3RC0020KM1 COMPRESSOR Ass`y RBB095M011 3RC0030CM0 COMPRESSOR Ass`y RCB120M001 3101500800 COMP. GROMMET DAEWOO 3110046900 CONDENSER Ass`y L568.4 x H575 x W44 3112400700 GRILLE COND PP Net 820x570xT3.5 3112501000 GUIDE POST Ass`y 3114003700 PLATE PARTITION Ass`y SGCC T0.8...

  • Page 99: Control Box Assembly

    CONTROL BOX ASSEMBLY DMB-1822/1832LH, DMB-2112/2122LH unit B (9K)
  • Page 100 DMB-1822/1832LH, DMB-2112/2122LH unit B (9K)  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) PART CODE PART NAME Q'TY...
  • Page 101 DMB-2112LH unit A (12K)
  • Page 102 DMB-2112LH unit A (12K)  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) PART CODE PART NAME Q'TY...
  • Page 103 DSB-2122LH unit A (12K)
  • Page 104 DSB-2122LH unit A (12K)  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) PART CODE PART NAME Q'TY...

  • Page 105: Control Panel Assembly

    CONTROL PANEL ASSEMBLY...
  • Page 106 DMB-1822/1832/2112/2122LH CONTROL PANEL  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) PART CODE PART NAME Q'TY...
  • Page 107 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.co.kr S/NO. : 3113907400 PRINTED DATE: APRIL. 2002...

  • Page 108: Service Manual

    : 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). by Nemko DAEWOO ELECTRONICS CO., LTD.

This manual is also suitable for:

Dmb-1832lhDmb-2122lhDmb-2112lhDsb-1822lhDsb-1832lh

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