Daewoo DSA-101L Service Manual
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Daewoo DSA-101L Service Manual

Daewoo DSA-101L Service Manual

Split system air conditioner
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Service Manual
Split System Air
Conditioner
Model: DSA-101L
Caution

: 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).
DAEWOO ELECTRONICS CO., LTD.
S/M No. : DSA101L010
DSA-121L

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Summary of Contents for Daewoo DSA-101L

  • Page 1 : 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). DAEWOO ELECTRONICS CO., LTD.

  • Page 2: Table Of Contents

    Contents CONTENTS 1. Specifications......................2 2. Outline and Dimensions ..................4 3. Operation.........................7 4. Wiring Diagram.....................18 5. Refrigerant Cycle....................20 6. Control Block Diagram ..................21 7. Electric Circuit Diagram..................22 8. Trouble Shooting....................24 9. Key Components of Electronic Circuit ..............43 10. Disassembly Instructions ..................46 1) Indoor Unit ......................46 2) Outdoor Unit .....................47 3) Exploded Diagram (Indoor Unit)..............49...

  • Page 3: Specifications

    1. SPECIFICATIONS ¡ DSA-101L MODEL DSA-101L ITEM Function Cooling Class Power AC 208~230V / 60Hz Capacity 2,923 Btu/h 10,000 Dehumidification 1.28 Running Current Electrical Power Input 1,110 Data Starting Current Type Rotary Compressor Model RCA 100A001 Capacitor 25µF / 400VAC...
  • Page 4 ¡ DSA-121L MODEL DSA-121L ITEM Function Cooling Class Power AC 208~230V / 60Hz Capacity 3,507 Btu/h 12,000 Dehumidification 1.53 Running Current 5.89 Electrical Power Input 1,280 Data Starting Current Type Rotary Compressor Model RCA 120A001 Capacitor 30µF / 400VAC Division Indoor Unit Outdoor Unit Type...
  • Page 5 Connecting Pipe Plate Mounting REMOTE CONTROLLER REMOCON Plate Mounting Body Frame Grille Grille Insert Filter - L Filter - R...
  • Page 6 Inlet Inlet Cabinet Side Panel Top Guide Support Foot Outlet Handle Cabinet Front Outlet Service Valve Foot Cushion...
  • Page 7 ¡ DSA-101L/DSA-121L (Before)

  • Page 8: Operation

    3. OPERATION PARTS OF NAME AND FUNCTION ¡ DSA-101L/DSA-121L Indoor Unit Electrostatic Filter Air Inlet Deodorizing Filter Antibacterial Air Outlet Fan Direction Filter (Up, Down) Remote Power Plug Controller Receiver Lamp Remote Controller...
  • Page 9 ¡ DSA-101L/DSA-121L Indoor Unit Display Switch Panel Remote Control Signal Receiver This place is the part to receive the signal if it EMERGENCY REMOTE receive the signal, you can hear the signal "beep, beep". There is a switch panel at inside of Front Panel.

  • Page 10: Outdoor Unit

    ¡ DSA-101L/DSA-121L (After) Outdoor Unit Air Inlet (Side Back) Connection Wire Connecting Pipe Drain Hose Air Outlet...
  • Page 11 ¡ DSA-101L/DSA-121L (Before) Outdoor Unit Air Inlet (side Back) Connection Wire Drain Hose Connecting Pipe Air Outlet NOTE: How to remove Top Panel 1. Loosen the screw at left and right side. 2. Push the three parts op Front and Back sides like figure orderly.

  • Page 12: Remote Controller

    REMOTE CONTROLLER ¡ DSA-101L/DSA-121L 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 13: Remote Controller Display

    REMOTE CONTROLLER DISPLAY ¡ DSA-101L/DSA-121L MODE Indicators (Auto/Quick/Cool/Fan/Dehumidifier) 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 loreeze.
  • Page 14 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 15: Sleep Mode

    Fan Speed (Indoor Unit) (1) Motor speed (Super high speed, high speed, normal speed, low speed, ultra 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...

  • Page 16: 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: AUTO • Preset temperature: 26°C •...

  • Page 17: Auto Mode

    Auto Mode (1) When the room temperature is higher than 28°C (Cooling Mode) !Compressor and lndoor Fan °C (Room temperature- Desired temperature) @ The fan will automatically operate as following Figure (Room temerature- Desired temperature) 0°C 1°C 2°C (R.T-D.T) (D.T) Dehumidification Mode Desired temperature <...
  • Page 18 Quick Mode(Powerful Cooling) Fan Speed: Super high speed Air discharge direction: Fixed Set temperature: 18°C Fixed (Cooling) Compressor and Outdoor Fan The air discharge direction procedure is below Fixed Up/Down Fixed Up/Down ƒR The option is LEFT/RIGHT direction. (Room temperature-18˚C) Self-Diagnostic Function The control will contain diagnostic test to verify the integrity of the system.

  • Page 19: Wiring Diagram

    4. WIRING DIAGRAM ¡ DSA-101L/DSA-121L PINK...
  • Page 20 MAIN ELECTRIC PARTS ¡ DSA-101L PART NAME PART CODE SPEC. QUANTITY REMARK Fan Motor 3108001220 IC-8428DWKG7C Fan Motor Capacitor 3106900300 1.0uF 400VAC Fuse 5FVLB3152L 250V 3.15A Indoor Transformer 5EPV050100 220V/18V Unit Stepping Motor 3108000100 MP28GA (L=400mm) Terminal Block 3108912300 SN-DBW-03P...

  • Page 21: Refrigerant Cycle

    Condenser Propeller fan OUTDOOR UNIT Refrigerant flow Note) If the pipe length exceeds the standard length, add 30g of refrigerant per extra meter. Model Name DSA-101L DSA-121L Contents Capillary Tube IDØ1.6 x ODØ3.2 x 600L IDØ1.6 x ODØ3.2 x 600L...

  • Page 22: Control Block Diagram

    6. CONTROL BLOCK DIAGRAM ¡ DSA-101L/DSA-121L 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: Electric Circuit Diagram

    7. ELECTRIC CIRCUIT DIAGRAM ELECTRIC CIRCUIT DIAGRAM ¡ DSA-101L/DSA-121L Indoor Unit Fan Motor TERMINAL BLOCK I.D.C SWING MOTOR TRANS- FORMER TRIAC COMP. RELAY OVERLOAD Display Part PRO- TECTOR Control Part COMPRESSOR OUTDOOR UNIT ROOM AIR FAN MOTOR SENSOR Signal Receiver...
  • Page 24 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. – TRIAC is controlled per the fan speed selection. – RELAY is controlled per the operation mode selection. 2.

  • Page 25: Trouble Shooting

    8. TROUBLE SHOOTING Troubl Is the Is the po unit display applied to normal? unit Outdoor unit does Is the not run?(note. 1) power nor check the voltag L & Y of te block Does the compressor run normally? press the powe button on remot Indoor unit does not run(note 1)
  • Page 26 ower Check power supply mains o the or interconnection wires rmal? ge between Check the wiring of indoor rminal Place the switch Is the position to the switch position er ON/OFF "Remote" and then on switch pannel at te controller Check it once "Remote"...
  • Page 27 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 28: 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 29 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 30 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 31 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 32 PCB DRIVING DESCRIPTION...

  • Page 33: Pcb Circuit Diagram

    PCB CIRCUIT DIAGRAM SHORT OPEN SKIP DETECT HEAT COOL 50Hz 60Hz CC10 100µF SHORT SHORT CN13 OPEN OPEN 65004 SHORT OPEN FLAP CC11 P77(HSO) 10µF/16V P76(HSCK) (XTOUT)P22 P75(SO) (XTIN)P21 P74(SI) (INT5/STOP)P20 P73(SCK) PCB LED P72(PDO/PWM) TIMER P71(INT4) (TC2)P15 TURBO P70(INT3/TC3) (PPG)P14 (DVO)P13 (INT2/TC1)P12...
  • Page 34 • Circuit Description ! TEMPERATURE SENSING @ STEPPING MOTOR DRIVING # TRIAC DRIVING FOR DIF 7805 7812 1000µF $ BUZZER DRIVING 470µF 1K R27 10K R3 % COMPRESSOR RELAY POWER FREO. TRANS DRIVING C102M 5.6K ^ AC POWER SUPPLY FUSE 275V 250V 3A &...
  • Page 35 Power Supply(1) AC 220V 275V 7812 104K 7805 FUSE1 VI VO VI VO 3.15A 100µF 470µF 1000µF 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 36 Sensor(3) Room temperature and Evaporator temperature Sensor Input CN10 Room PT-K43C 12.7K MICOM 5267-04A PT-K43C 12.7K 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 37 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 38 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 39 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 40 Reset(8) 5.6K 7042P 4.7µF MICOM 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 RESET...
  • Page 41 Function Selecting(9) test 1K R17 mild/high 1K R26 COMP ERR 1K R16 1K R25 50/60hz MICOM 1K R15 1K R24 JS4 heat/cool 5A 103J F4104Z 1K R23 5A 103J F4104Z DESCRIPTION Selecting function is as following table 9-1. ƒRWhen 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.
  • Page 42 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 43 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 44 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 ERROR Is it normal? Select FAN SPEED button Is it normal? ERROR...
  • Page 45 ERROR Is LCD display OFF? Select TIMER ON Button ERROR Is it normal Select Timer Enter Button display? ERROR 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 46: 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 47 (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 10.5K‰ IN5 5 12 OUT 5 7.2K‰ IN6 6 11 OUT 6 IN7 7 10 OUT 7...
  • Page 48 (5) U9 (KIA7042P) : RESET IC KIA70 INPUT OUTLINE GROUND OUTPUT...

  • Page 49: Disassembly Instructions

    10. DISASSEMBLY INSTRUCTIONS INDOOR UNIT ¡ DSA-101L/DSA-121L 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.

  • Page 50: Outdoor Unit

    OUTDOOR UNIT ¡ DSA-101L/DSA-121L (After) PROCEDURES PHOTOS 1.Stop the air conditioner and disconnect the wire from Indoor Unit to Outdoor Unit. 2. Disassemble the case. (Fig 1~2) Fig 1 !Remove the Top Panel. (Loosen thirteen screw) @ Remove the Front Cabinet. (Loosen six screw) # Remove the Side Cabinet.
  • Page 51 ¡ DSA-101L/DSA-121L (Before) PROCEDURES PHOTOS 1.Stop the air conditioner and disconnect the wire from Indoor Unit to Outdoor Unit. 2. Disassemble the case. (Fig 1~2) Fig 1 !Remove the Top Panel. (Loosen two screw and remove six hook) @ Remove the Front Cabinet. (Loosen four screw and four hook) # Remove the Side Cabinet and Back Cabinet.

  • Page 52: Exploded Diagram (Indoor Unit)

    EXPLODED DIAGRAM (Indoor Unit) ¡ DSA-101L/DSA-121L...
  • Page 53 ¡ DSA-101L/DSA-121L 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)
  • Page 54 ¡ DSA-101L/DSA-121L PART LIST(INDOOR UNIT) PART CODE PART NAME Q'TY SPEC REMARK 15-8 3102794000 HARNESS I.D EARTH 15-9 3103400300 KNOB RESET SWITCH 15-10 3100024000 MODE SELECT ASS'Y TS-11 & HARNESS 15-11 3101395060 POWER CORD ASS'Y BUYER 15-12 7111301611 TAPPING SCREW...

  • Page 55: Exploded Diagram(Outdoor Unit)

    EXPLODED DIAGRAM(Outdoor Unit) ¡ DSA-101L/DSA-121L (After)
  • Page 56 ¡ DSA-101L/DSA-121L (After) OUTDOOR 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)
  • Page 57 ¡ DSA-101L/DSA-121L (Before)
  • Page 58 ¡ DSA-101L/DSA-121L (Before) OUTDOOR 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)

  • Page 59: Control Box Assembly

    CONTROL BOX ASSEMBLY ¡ DSA-101L/DSA-121L...
  • Page 60 ¡ DSA-101L/DSA-121L PART CODE PART NAME Q'TY SPEC REMARK 3100503101 CONTROL BOX P .P+G.F 20% 3100054400 CONTROL PCB ASS'Y FR-1 3108054200 LED PCB ASS'Y FR-1 3103400300 KNOB RESET SWITCH 3101395060 POWER CORD ASS'Y BUYER 3108901230 TERMINAL BLOCK SN-DBW-03P 5EPV050100 TRANS FORMER...
  • Page 61 S/M No. : CP490P-010 S/M No. : CP490P-010 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 PRINTED DATE: APR. 1999...

This manual is also suitable for:

Dsa-121l

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