DAEWOO ELECTRONICS DSA-240L-R Service Manual
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DAEWOO ELECTRONICS DSA-240L-R Service Manual

DAEWOO ELECTRONICS DSA-240L-R Service Manual

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Manual de Servicio
Acondicionador de Aire Tipo Split
Modelo: DSA-240L-R

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Summary of Contents for DAEWOO ELECTRONICS DSA-240L-R

  • Page 1 Manual de Servicio Acondicionador de Aire Tipo Split Modelo: DSA-240L-R...

  • Page 2: Table Of Contents

    Contents CONTENTS 1. Specifications......................2 2. Outline and Dimensions ..................4 3. Operation.........................6 4. Wiring Diagram.....................17 5. Refrigerant Cycle....................20 6. Control Block Diagram ..................21 7. Electric Circuit Diagram..................23 8. Trouble Shooting....................26 9. Key Components of Electronic Circuit ..............48 10. Disassembly Instructions ..................51 1) Indoor Unit ......................51 2) Outdoor Unit .....................52 3) Exploded Diagram (Indoor Unit)..............53...

  • Page 3: Specifications

    1. SPECIFICATIONS * DSA-240L-R MODEL DSA-240L-R ITEM Function Cooling Class Power AC 220V/ 60Hz Capacity 7,030 Btu/h 24,000 Dehumidification Running Current 11.7 Electrical Data Power Input 2,500 Type Recipro Compressor Model AWG5530EXC Capacitor 45µF/ 400VAC Division Indoor Unit Outdoor Unit...
  • Page 4 * DSA-240LH-R MODEL DSA-240LH-R ITEM Function Cooling & Heating Class Power AC 220V/ 60Hz Capacity 7,030 Btu/h 24,000 Dehumidification 2.67 Running Current 11.5 / 11.8 Electrical Data Power Input 2,500 / 2,550 Type Recipro Compressor Model AWG5530EXC Capacitor 45µF/ 400VAC Division Indoor Unit Outdoor Unit...

  • Page 5: Outline And Dimensions

    2. OUTLINE AND DIMENSIONS INDOOR UNIT * DSA-240L-R/LH-R...
  • Page 6 OUTDOOR UNIT * DSA-240L-R/LH-R...

  • Page 7: Operation

    3. OPERATION PARTS OF NAME AND FUNCTION * DSA-240L-R/LH-R Indoor Unit Display Switch Panel Remote Control Signal Receiver This place is the part to receive the signal if it receive the signal, you can hear the signal “beep. “beep, beep.”...
  • Page 8 * DSA-240L-R/LH-R Connection wire Air Inlet Drain Hose Air Outlet Connection Pipe...

  • Page 9: Remote Controller

    REMOTE CONTROLLER * DSA-240L-R 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 10 * DSA-240LH-R 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 11 R E M O T E C O N T R O LLE R D I S P LA Y * DSA -2 4 0 L-R MODE Indicators (Auto/Quick/Cool/Fan/Dehumidifier/Heat) Lights to indicate the mode selected. AUTO FAN Indicators HOUR FAN DIRECTION Indicators Lights to indicate Lights to indicate the ON OFF...
  • Page 12 * DSA -2 4 0 LH -R MODE Indicators (Auto/Quick/Cool/Fan/Dehumidifier/Heat) Lights to indicate the mode selected. AUTO FAN Indicators HOUR FAN DIRECTION Indicators Lights to indicate Lights to indicate the the fan speed. ON OFF AUTO fan direction. TIMER NATURAL NATURAL Indicator Lights to indicate the speeds simulating a loreeze.
  • Page 13 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 14 Fan Speed (Indoor Unit) (1) Motor speed (High speed, midium speed, low speed). (2) Remote controller setting fan speed. (Auto, L, M, H, Natural) (3) Relation of operating mode between fan speed. (legned: X-no relation) DEHUMI- HEAT FAN ONLY COOL AUTO QUICK DIFICATION...
  • Page 15 Sleep M ode (1) When you are going to sleep, select sleep switch and the unit controls the room to the desired temperature. (The unit will automatically turn off after 4 hour) (2) For changing the temperature. +0.5 C +0.5 C - 0.5 C +0.5 C - 0.5 C...

  • Page 16: Auto Mode

    After the indoor fan is operated for 20 seconds in the Auto Mode the unit will operate automatically by selecting operating Mode according to the room temperature (RT: Room temperature) ROOM TEMPERATURE OPERATING MODE FLAP POSITION DSA-240L-R Cooling Cooling Position > DT-2°C DSA-240LH-R...
  • Page 17 Dehum idifica tion M ode 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 18 C Compressor : OFF Fan speed : Low speed A ir Discha r ge Direction(only rem ocon opera tion)

  • Page 18: Wiring Diagram

    4. WIRING DIAGRAM * DSA-240L-R...
  • Page 19 * DSA-240LH-R...
  • Page 20 MAIN ELECTRIC PARTS * DSA-240L-R PART NAME PART CODE SPEC. QUANTITY REMARK Fan Motor 3108007500 IC-9430DWKG7A Fan Motor Capacitor 3106902400 2.0uF 400VAC Indoor Fuse 5FVLB3152L 250V 3.15A Transformer 5EPV050120 230V/50Hz Unit Stepping Motor 3108007600 GSP-24RW-062 Terminal Block 3108912320 SN-DBW-062 Compressor...

  • Page 21: Refrigerant Cycle

    5. REFRIGERANT CYCLE Note) If the pipe length exceeds the standard length, add 30g of refrigerant per extra meter. Model Name DSA-240LH-R Contents IDØ2.0 x ODØ3.2 x 600L Cool Capillary Tube Heat IDØ2.0 x ODØ3.2 x 300L Charge Quantity 2,200 g...

  • Page 22: Control Block Diagram

    6. CONTROL BLOCK DIAGRAM * DSA-240L-R Operating Mode Unit on lamp Remote Signal receiver Fan Speed Air clean lamp Emergency Timer Selection Quick lamp Flap Position Operation Timer lamp Temp. Setting ON/OFF Room air temp. SLEEP Indoor coil temp. REMOCON...
  • Page 23 * DSA-240LH-R Operating Mode Unit on lamp Remote Signal receiver Fan Speed Air clean lamp Emergency Timer Selection Quick lamp Flap Position Operation Timer lamp Temp. Setting ON/OFF Room air temp. SLEEP Indoor coil temp. REMOCON Outdoor coil temp Circuit for signal receiver A/D converter lnitialization Beeper...

  • Page 24: Electric Circuit Diagram

    7. ELECTRIC CIRCUIT DIAGRAM ELECTRIC CIRCUIT DIAGRAM * DSA-240L-R Indoor Unit Fan Motor TERMINAL BLOCK I.D.C SWING MOTOR TRANS- FORMER TRIAC COMP. RELAY OVERLOAD Display Part PRO- TECTOR Control Part OUTDOOR UNIT COMPRESSOR ROOM AIR FAN MOTOR SENSOR Signal Receiver...
  • Page 25 * DSA-240LH-R...
  • Page 26 Description 1. After the power ON/OFF button is pressed once, the relay and triac are turned ON or OFF per the remote control setpoint. 2. If the power ON/OFF button is pressed once more, the relay and triac are turn off and the unit stops operation.

  • Page 27: Trouble Shooting

    8. TRO UBLE SHO OTING...
  • Page 28 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 29: Neither Indoor Unit Nor Outdoor Unit Runs

    Neither Indoor Unit nor Outdoor Unit Runs Confirm following statement. When the unit operate normally, Sometimes the outdoor unit and indoor unit cannot operate. Check the function select switch. Is it timer mode? The function select switch locate 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 does not run.
  • Page 30 Outdoor Unit Runs but Indoor Fan Do 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 90% The circuit for triac control Rating Voltage more than 90%...
  • Page 31 Outdoor Fan and Compressor Do Not 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 32 Only Compressor Do 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 90% driving. Rating voltage more than 90% Check the connecting Rating voltage wire between indoor...
  • Page 33 PCB DRIVING DESCRIPTION...

  • Page 34: Pcb Circuit Diagram

    PCB CIRCUIT DIAGRAM * DSA-240L-R/LH-R...
  • Page 36 * DSA-240L-R/LH-R PART LIST(INDOOR UNIT) PART CODE PART NAME SPEC Q'TY UNIT REMARK 3105698200 BUZZER DP-2520BA CN5XD104M- C-ARRAY F5 104Z CN4XD104M- C-ARRAY F4 104Z CN3XD104M- C-ARRAY F3 104Z 3108803500 GP881206-2(250) CCXE1E104M C-CERA 104Z 25VDC CC10 CCXE1E104M C-CERA 104Z 25VDC CC11...
  • Page 37 PART CODE PART NAME SPEC Q'TY UNIT REMARK 1KA7042P-- IC RESET KIA7042P 5L 1KD65004AP IC DRIVER KID65004AP 52C1374001 COIL 130UH 3A 4850103610 RESONATOR CST8.00MTW,8MHZ 3104398102 PCB CONTROL 160.5*140*1.6T.1(42) 1TLP560J-- IC PHOTO COUPLER TLP 560J R-OPT 3104810000 RESISTOR OPTION NOTE OPTION TABLE RD-4K101J- R CARBON FILM 1/4 100 OHM J...
  • Page 38 24.9K DSB-070LH 3.24K 49.9K 24.9K 32.4K 24.3K DSB-091LH 3.24K 12.4K 24.9K 15.0K 24.3K DSB-240L-R 3.76K 36.5K DSA-240L-R 6.34K 7.68K DSB-240LH-R 5.76K 5.76K 36.5K 36.5K 22.1K DSA-240LH-R (6.34K) (6.34K) (7.68K) (7.68K) (6.19K) * LED PCB ASS`Y (MODEL : 240L-R/LH-R) PART CODE...
  • Page 39 Power Supply(1) AC 220V 275V 7812 104K 7805 FUSE1 VI VO VI VO 3.15A 100µF 1000µF 470µF POWER TRANS DESCRIPTION DC Power Supply in circuit needs +12V and +5V. +12V is used for Compressor Driving Relay, Triac Driving Photo Triac, Buzzer Driving Swing, Sweep Motor. AC voltage of secondary Power Transformer is rectified by Bridge Diode, and it is filtering by Main Condensor CE1.
  • Page 40 Sensor(3) Room temperature and Evaporator temperature Sensor Input 070LH,091LH 182LH, 240LH O/C SENSOR CN10 12.7kF MICOM I/C SENSOR 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 R10 (12.7KΩ) and R11 (12.7KΩ).
  • Page 41 Triac Driving(4) AC 220V TLP561 130µH MICOM 0.1µF 120Ohm SM3JZ47 KID 65004 TO MOTOR 1/2W DESCRIPTION Number 38 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 42 Remote Controller(5) DESCRIPTION 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. 4.5ms 16bit 24bit...
  • Page 43 Micom Power Supply(7) VDD 42 CC11 10µF MICOM 8MHz CC13 DESCRIPTION MICOM Power is supplied 5V at Number 42 using VDD, Number 19, 20 Vsing Oscillator, CC13 is noise filter.
  • Page 44 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 45 Function Selecting(9) F3 104Z 4A 103J MILD/HIGH HEAT/COOL MICOM F5 104Z 103J heat/low cool/low model heat/high cool/high monitoring DESCRIPTION Selecting function is as following table 9-1. * When power source is put at fist, Funtion selection input is recognized. And when the unit is running the microcomputer ignore variation of funtion selection input. MILD –...
  • Page 46 Zero Crossing Detect(11) KRC120M MICOM TRANS OUTPUT 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...
  • Page 47 Stepping Motor Driving(12) CN13 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 48 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 >...
  • Page 49 ERROR Is LCD display OFF? Select TIMER ON Button ERROR Is it normal Select Timer Enter Button ERROR display? TIMER Select CANCEL Button ERROR Is all display OFF? Select ON/OFF Button Select OFF (Timer) Button (0.5~24 HOUR) ERROR Is it normal? Select SLEEP Button SLEEP MODE ERROR...

  • Page 50: Key Components Of Electronic Circuit

    9. KEY COMPONENTS OF ELECTRONIC CIRCUIT (1) U1 (MICOM) P77(HSO) P76(HSCK) (XTOUT)P22 Steppping Motor Driving P75(SO) (XTIN)P21 P74(SI) (INT5/STOP)P20 P73(SCK) Indoor Unit Motor Driving P72(PDO/PWM) P71(INT4) (TC2)P15 P70(INT3/TC3) (PPG)P14 (DVO)P13 Buzzer Driving (INT2/TC1)P12 Remocon Input LED Driving (INT1)P11 Comp Relay Driving (INTO)P10 Zero Crosing Detect (AIN7)P67...
  • Page 51 (2) 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 52 (5) U9 (KIA7042P) : RESET IC KIA70 INPUT OUTLINE GROUND OUTPUT...

  • Page 53: Disassembly Instructions

    10. DISASSEMBLY INSTRUCTIONS INDOOR UNIT * DSA-240L-R/LH-R 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) 1 Draw up the Insert Grille and remove it.

  • Page 54: Outdoor Unit

    OUTDOOR UNIT * DSA-240L-R/LH-R PROCEDURES PHOTOS 1.Stop the air conditioner and dis connect the wire from in door unit to out door unit. 2. Disassemble the case. (Fig 1~2) Fig 1 1 Remove the Top Panel. (Loosen two screw and remove six hook) 2 Remove the Front Cabinet.

  • Page 55: Exploded Diagram (Indoor Unit)

    EXPLODED DIAGRAM (Indoor unit) * DSA-240L-R/LH-R...
  • Page 56 * DSA-240L/LH PART LIST (INDOOR UNIT)  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 57 * DSA-240L/LH PART LIST (INDOOR UNIT) PART CODE PART NAME Q'TY SPEC REMARK 2150013200 AL FOIL EMI AL100P (W100XL100) 3106902400 CAPACITOR SH.M.B 2.0MF 400V 3102797910 HARNESS EARTH GREEN/YELLOW L170mm 3104896300 SENSOR ID ASSY NTM-KD43C-D1D2 L450, L330 3108912320 TERMINAL BLOCK SN-DBW-4P 5EPV050120 TRANSFORMER DWA-220B...

  • Page 58: Exploded Diagram (Outdoor Unit)

    EXPLODED DIAGRAM (Outdoor Unit) * DSA-240L-R...
  • Page 59 * DSA-240L PART LIST (OUT DOOR UNIT)  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 60 * DSA-240LH-R...
  • Page 61 * DSA-240LH PART LIST (OUT DOOR UNIT)  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 62: Control Box Assembly

    CONTROL BOX ASSEMBLY * DSA-240L-R...

  • Page 63: Terminal Block

    * DSA-240L  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 64 * DSA-240LH-R...
  • Page 65 * DSA-240LH  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 66 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.daewoo.co.kr S/M NO. : DSA240LHR PRINTED DATE: OCT. 2000...

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