Unique Klasse DSA-0910LG-M Service Manual
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Unique Klasse DSA-0910LG-M Service Manual

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SERVICE MANUAL

MULTI-ONE SYSTEM
Air Conditioner
Model: DPA-246LR + DSA-0910LR-M
DPA-246LG + DSA-0910LG-M
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.

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  • Page 1: Service Manual

    SERVICE MANUAL MULTI-ONE SYSTEM Air Conditioner Model: DPA-246LR + DSA-0910LR-M DPA-246LG + DSA-0910LG-M 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...

  • Page 2: Floor Standing Type

    FLOOR STANDING TYPE Air Conditioner Model: DPA-246LR / DPA-246LG...

  • Page 3: Table Of Contents

    Contents CONTENTS 1. SPECIFICATIONS.....................2 2. INSTALLATION GUIDE.....................3 3. OUTLINE........................13 4. WIRING DIAGRAM....................17 5. EXPLODED DIAGRAM ..................20 6. DIAGRAM OF REFRIGERANT CYCLE..............25 7. THE STRUCTURE OF THE CONTROL PANEL..........26 8. PCB DRIVING DESCRIPTION ................29 9. TROUBLESHOOTING....................32 10. DISASSEMBLY INSTRUCTION ................37...

  • Page 4: Specifications

    1. SPECIFICATIONS Multi-One [ DPA-246L(R/G) + DSA-0910L(R/G)-M ] MODEL FLOOR STANDING SPLIT ITEM DPA-246LR/LG DSA-0910LRM/LGM FUNCTION COOLING POWER AC 220~ / 60Hz 7,200 2,300 CAPACITY Btu/h 24,500 7,848 ELECTRICAL Running current 10.5 DATA Power input 2300 FAN Type Limited fan Cross flow fan Capacitor 2µF / 400~450VAC...

  • Page 5: Installation Guide

    2. INSTALLATION GUIDE INSTALLATION PLACE ・ ・ ・ ・ ・ Flat and strong place in the room ・ A place no reach of direct ray of sun (if necessary, shield the ・ ・ ・No obstacles in front of air in/out grille light) ・...
  • Page 6 Detailed Diagram of Installation ■ ■ M M O O D D E E L L : : D D P P A A - - 2 2 4 4 6 6 L L R R / / L L G G 1.
  • Page 7 5. Connect hook of power cable and insert is securely into the fixing part. 6. Check if pan drain is securely positioned at the end of drain hose. If 7. Fasten 3 screws in cover evaporator front. loose, firmly secure it with cable tie. * In case there is interference with piping line when cover evaporator front is closed, move piping line close to evaporator, close cover evaporator front and fasten screws.
  • Page 8 Caution in Installation of Multione model ◇ Wiring and part shapes may differ per product model. Therefore, make sure to refer to wiring diagram attached to each model for installation. (Refer to wiring diagram attached at the end of the manual.) T T e e r r m m i i n n a a l l B B l l o o c c k k ( ( O O D D U U ) ) M M a a i i n n P P o o w w e e r r S S p p l l i i t t...
  • Page 9 Air Purging Method ◇ The connected piping between indoor and outdoor units contains air inside. Air-purge is the process to remove this air. Existence of non-condensable gas, such as oxygen or nitrogen gas, inside piping line causes increase of discharge pressure, heating of compressor, degradation of the performance of air conditioner and refrigerant noise, etc.
  • Page 10 Air Purging Method ◇ Multi-one model is assembled with solenoid valve inside the system. Therefore, for refrigerant purging, the closed solenoid valve must be opened. Follow the instructions below. ▶Connect power line of the indoor unit of standing type A/C to terminal block of outdoor unit. ▶Connect power plug of the indoor unit of standing type A/C to cabinet panel box.
  • Page 11 Additional Filling of Refrigerant ◎ ◎ C C a a u u t t i i o o n n w w h h e e n n a a d d d d i i t t i i o o n n a a l l l l y y f f i i l l l l i i n n g g r r e e f f r r i i g g e e r r a a n n t t d d u u r r i i n n g g Check the hose and connection status of manifold gauge.
  • Page 12 Changes of low pressure by the temperature differences indoor and outdoor (Multi-One, Basic piping 5m) [Package single operation] Low pressure DPA-246L (kg/cm , G) Outdoor temperature(℃) Bypass S/V Additional floor standing type - Add extra 30g/m refrigerants wall mounted type - No need for extra refrigerants under 15m *The data are the result of tests at the relative humidity 50% ◇...
  • Page 13 Test Operation and Description of Functions 1 1 ) ) F F i i n n i i s s h h i i n n g g o o p p e e r r a a t t i i o o n n ①...
  • Page 14 Pumpdown (refrigerant recovery) S S t t a a r r t t c c o o o o l l i i n n g g o o p p e e r r a a t t i i o o n n . . Loosen nut caps of gas and liquid service valves (⑤, ⑥) and ( ( C C h h e e c c k k i i f f c c o o m m p p r r e e s s s s o o r r o o f f o o u u t t d d o o o o r r u u n n i i t t i i s s service port cap of gas service valve (⑦).

  • Page 15: Outline

    3. OUTLINE 1 1 . . N N A A M M E E A A N N D D F F U U N N C C T T I I O O N N O O F F P P A A R R T T S S (1) DPA-246LR/LG INDOOR UNIT 1Top side air out / director for fan 7Main controls/Remote sensors...
  • Page 16 (2) DPA-246LR/LG INDOOR UNIT OUTLINE AND SECTION...
  • Page 17 (3) DPA-246LR/LG INDOOR UNIT MAIN CONTROL Temperature Indicator Fan speed setting button Room temperature/Desired temperature Press to select the fan speed in five steps. ● ● indicator "(Auto, Low, Middle, Hige, Eco) " Cooling course Indicator UV sterilization button Light to indicate the cooling course. ●...

  • Page 18: Mode Selection Button

    (4) DPA-246LR/LG REMOTE CONTROLLER Signal transmitter Display Fan speed setting button Press to select the fan speed in five steps. ● "(Auto, Low, Middle, Hige, Eco)" Mode selection button Press to cycle through the modes. ● [Auto/Cool/Fan/Dehumifier] Air swing button Press this button once to auto operation of ●...

  • Page 19: Wiring Diagram

    4. WIRING DIAGRAM (1) INDOOR UNIT...
  • Page 20 (2) OUTDOOR UNIT...
  • Page 21 (3) OUTDOOR CONTROL BOX ASSY N N o o . . P P a a r r t t c c o o d d e e P P a a r r t t N N a a m m e e E E A A S S p p e e c c .

  • Page 22: Exploded Diagram

    5. EXPLODED DIAGRAM (1) DPA-246 LR/LG INDOOR UNIT...
  • Page 23 ■ PARTS LIST (INDOOR UNIT) (PAGE 1/2) Part code Part Name Spec. Unit Remark 31100A8X00 ASSY INDOOR UNITS DAP-246LR/LG 3110305200 BASE HIPS, GY5502A 31100A9000 ASSY CABINET BODY ASSY,GY5502A 3110802300 BODY CABINET PCM,T0.8,GY5502C 311009JZ01 ASSY BASE MOTOR SGCC,T1.0 3111416000 COVER TOP HIPS,GY5502A 3111909800 FILTER AIR BACK...
  • Page 24 ■ PARTS LIST (INDOOR UNIT) (PAGE 1/2) Part code Part Name Spec. Unit Remark 17-15 3113617800 LAMP UV SLIM UV LAMP OD5.0 6W 17-16 3113003500 HOLDER UV LAMP SILICON(V0) 3107900100 MAGNET FERRITE 17-17 3104504700 PLATE MAGNET SGCC, T0.8 17-18 3111416700 COVER DOOR HINGE ABS,GY5502A 17-19...
  • Page 26 ■ PARTS LIST (OUTDOOR UNIT) QUANTITY PART CODE REMARK PART NAME 311009QR00 BASE PAN ASSY 3117149100 COMPRESSOR [A] 3117149200 COMPRESSOR [B] 311009ZG10 ASSY DISCHARGE 311009Z900 ASSY CONDENSER 311009ZC42 ASSY PIPE ODU 3115405700 SERVICE VALVE G 3115405900 SERVICE VALVE L(SRAC) 3115405600 SERVICE VALVE G 311540H800 SERVICE VALVE L(PAC)

  • Page 27: Diagram Of Refrigerant Cycle

    6. DIAGRAM OF REFRIGERANT CYCLE S S / / V V ( ( B B / / P P ) ) ( ( 3 3 / / 8 8 ” ” ) ) O O u u t t d d o o o o r r a a i i r r s s e e n n s s o o r r C C a a p p i i ( ( B B P P ) ) ( ( 5 5 / / 8 8 ”...

  • Page 28: The Structure Of The Control Panel

    7. THE STRUCTURE OF THE CONTROL PANEL (1) The Function Function name Operation Add or Change Main Key - Temperature range : 18°C ~ 32°C (Automatic operation temperature 22°C ~ 26°C) - Cooling course : 100% 60%- 40% (repeat) - Fan speed : Automatic Middle High Eco (repeat)
  • Page 29 (2) The Circuit operation A. BLOCK DIAGRAM - Indoor unit Main power part Bridge SMPS AC220V Gener Diode Regulator Diode circuit FRONT PCB Output part Display part MICOM - Indoor fan motor (8BIT, 32K) • Top • Bottom Key input part - UV Lamp - Electronic valve - Buzzer...
  • Page 30 B B . . P P a a r r t t o o p p e e r r a a t t i i o o n n 1 1 ) ) M M a a i i n n p p o o w w e e r r p p a a r r t t It is consisted of Bridge diode,SMPS circuit,Gener diode and Regulator.
  • Page 35 5 5 ) ) E E l l e e c c t t r r o o n n i i c c v v a a l l v v e e d d o o e e s s n n o o t t w w o o r r k k . . * There is a time lag in the valve operation.(6.5s) IC4 PIN 15-16 IC7(MICOM)PIN 7-10...
  • Page 36 9 9 ) ) O O u u t t d d o o o o r r u u n n i i t t d d o o e e s s n n o o t t w w o o r r k k . . * Automatic On/Off according to the temperature of room and the desired.
  • Page 37 1 1 2 2 ) ) R R e e m m o o t t e e c c o o n n t t r r o o l l d d o o e e s s n n o o t t w w o o r r k k . . * Remote control trouble : Check signal diode, IC micom soldering and the troll battery.
  • Page 38 ( ( 1 1 3 3 ) ) S S e e l l f f d d i i a a g g n n o o s s t t i i c c f f o o r r e e r r r r o o r r s s * E1 : Room t emper at ur e sensor t r oubl e -nor mal oper at i on (Appears when both temperature adjust buttons ▲,▼...
  • Page 39 10. DISASSEMBLY INSTRUCTION (1) DPA-246LR/LG PROCEDURES PHOTOS 1. Before dismantling 1.1. Cut off the main power. 1.2. Administer 'Pump Down (refrigerant recovery)' so that not to have refrigerant flown out during the course of dismantling. 2. Dismantle 'Door Front' from the main body. 2.1.
  • Page 40 PROCEDURES PHOTOS 3. Dismantle 'Panel Display' from the main body. 3.1. Unfasten 3 screws to dismantle 'Cover Evap. Front'. 3.2. Disconnect display harness and remove it through the hole of 'Panel Discharge R'. 3.3. Dismantle 'Panel Display' from the main body by lifting it upwards and pulling it to the front.
  • Page 41 PROCEDURES PHOTOS 5. Dismantle evaporator from the main body. 5.1. Unfasten flare nuts and disconnect piping connected to the piping of evaporator. 5.1. Unfasten screws (8) connected to scroll plate. 5.2. Unfasten screws of top/ lower pan drain and dismantle 'Top/Lower Pan Drain'.
  • Page 42 (2) Replace the UV Lamp PROCEDURES PHOTOS 1. Dismantle 'Cover UV Lamp'. 1.1. Open 'Cover Evap. Front' and disconnect 'UV Lamp harness' from 'Box Control'. 1.2. To dismantle 'Cover UV Lamp', push hooks at the bottom of the upward of 'Cover UV Lamp' outwards so that hook can be disconnected.
  • Page 43 SPLIT TYPE Air Conditioner Model: DSA-0910LR-M DSA-0910LG-M...
  • Page 44 Contents CONTENTS 1. SPECIFICATIONS.....................2 2. OUTLINE AND DIMENSIONS .................3 3. OPERATION......................4 4. WIRING DIAGRAM....................13 5. REFRIGERANT CYCLE..................15 6. CONTROL BLOCK DIAGRAM ................16 7. TROUBLE SHOOTING...................17 8. PCB DRIVING DESCRIPTION ................23 9. DISASSEMBLY INSTRUCTIONS................27...

  • Page 45: Specifications

    1. SPECIFICATIONS DSA-0910LR/G-M MODEL DSA-0910LR/G-M ITEM Function Cooling Power AC 220V~ / 60Hz Capacity 2300 Btu/h 7848 Dehumidification 0.89 Running Current Electrical Power Input Data Starting Current Type Rotary Compressor Model QK191KAF(A), QK134KBH(B) Capacitor 30µF / 6µF 450VAC(A), 25µF 450VAC(B) Indoor Unit Outdoor Unit Type...

  • Page 46: Outline And Dimensions

    2. OUTLINE AND DIMENSIONS INDOOR UNIT DSA-0910LR/G-M...

  • Page 47: Operation

    3. OPERATION NAME AND FUNCTION OF PARTS Indoor Unit DSA-0910LR/G-M Ari Inlet Front Panel ON/OFF Button Display Air Direction Air Direction Air Direction Timer (Up) (Down) Fan Speed and Temperature Remote Controller...

  • Page 48: Indoor Unit Display

    Indoor Unit Display Remote Control Signal Receiver This place is the part to receive the signal if it receives the signal. Air Direction lamp Lights when the operation is going air swing Timer lamp Lights during the time reservation mode. Fan speed and temperature lamp Turbo lamp Lights when the...
  • Page 49 REMOTE CONTROLLER Name of Each Button Remote Controller Signal transmitter It sends signals to the indoor unit. Temperature setting buttons Press to raise or lower the desire temperature. Fan speed setting button Press to select the fan speed in five steps. "(Auto, Low, Middle, High, Eco) "...
  • Page 50 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 51 Fan Speed (Indoor Unit) (1) Motor speed (turbo speed, high speed, middle speed, low speed). (2) Remote controller setting fan speed. (Auto, L, M, H, Eco, turbo) (3) Relation of operating mode between fan speed. DEHUMI- FAN ONLY COOL AUTO DIFICATION Auto Auto...

  • Page 52: 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 time setting) (2) For changing the desired temperature. +0.5°C +0.5°C –0.5°C +0.5°C –0.5°C –0.5°C HOUR...

  • Page 53: Auto Mode

    Frost Prevention of Indoor Unit When the unit operates at low ambient temperature, frost may appear on the Evaporator. When the indoor coil temperature is lower than 0°C at the end of 10 minutes of continuous compressor operation from the start, the microcomputer of the unit stops the compressor to protect the unit from the frost.

  • Page 54: Dehumidification Mode

    Dehumidification Mode Desired temperature+1°C < Room temperature Outdoor Fan, Compressor : ON Indoor Fan : Low speed Desired temperature-1°C ≤ Room temperature ≤ Desired temperature+1°C Compressor : 3 min/ON, 5 min/OFF Fan Speed : low speed Room temperature < Desired temperature-1°C Compressor : OFF Fan speed : Low speed Air Discharge Direction(only remocon operation)
  • Page 55 Self-Diagnostic Function The control will contain diagnostic test to verify the integrity of the system. (1)Error Code Display Pattern ON LAMP: Blink LED DISPLAY CASE NOTE • Continuously woorking to fix room temperature 18°C in heating mode. Room Sensor open or Short •...
  • Page 57 MAIN ELECTRIC PARTS 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). DSA-0910LR/G-M Part Name Part Code...

  • Page 58: Refrigerant Cycle

    5. REFRIGERANT CYCLE Diagram of Refrigerant Cycle Note) If the pipe length exceeds the standard length, add 20g of refrigerant per extra meter.

  • Page 59: Control Block Diagram

    6. CONTROL BLOCK DIAGRAM DSA-0910LR/G-M...

  • Page 60: Trouble Shooting

    7. TROUBLE SHOOTING...
  • Page 61 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 62 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 63 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 Main P.C.B. Rating voltage Check input Voltage of Fan Motor connector at Main P.C.B under 90% The circuit for triac control Rating Voltage more than 90%...
  • Page 64 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 65 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 90% driving. Rating voltage more than 90% Check the connecting Rating voltage wire between indoor Check the voltge between...

  • Page 66: Pcb Driving Description

    PCB DRIVING DESCRIPTION...

  • Page 67: Pcb Circuit Diagram

    PCB CIRCUIT DIAGRAM DSA0910LR/G-M...
  • Page 68 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 69 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) Is it normal? ERROR Select SLEEP Button SLEEP MODE...

  • Page 70: Disassembly Instruction

    9. DISASSEMBLY INSTRUCTIONS INDOOR UNIT DSA-0910LR/G-M PROCEDURES PHOTOS 1. Start the operation of Air conditioner and down the Case Flap. 2. Disconnect the power cord from the wall outlet. caution You must remove the Frame Grille after open the Case Flap. (Fig1) 3-1 Remove the Insert Grille and Frame Grille.
  • Page 71 PROCEDURES PHOTOS 4 After remove Cover Ter-Block, Disconnect the lead wire from the hub PCB.(Fig5) (Fig5) 5 Close the Cover Ter-Block and shut down the Panel Insert.(Fig6) 6 Grip and lift up the case flap to remove the Frame Grille(Fig6) (Fig6) 3-2 Remove Panel Insert and then remove Frame Grille.
  • Page 72 PROCEDURES PHOTOS 5 Pull the Hinge toward you and remove it.(Fig9) (Fig9) 6 Remove the Panel Insert.(Fig10) 7 Refer to 3-1 and remove the Frame Grille. (Fig10) 4. Remove the Drain Pan. 1 Loosen the 2 screw fixing the Drain Pan from connection at the Body(Fig11) (Fig11) 2 Remove the Drain Pan(Fig12)
  • Page 73 PROCEDURES PHOTOS 5. Remove the Control Box 1 Disconnect the lead wire from connection at the main PCB.(Fig13) (Fig13) 2 Loosen the 1 screw fixing at the ground wire.(Fig14) (Fig14) 3 Remove 3 screw fixing at the Control Box of the Body.(Fig15) 4 Remove the Control Box.
  • Page 74 PROCEDURES PHOTOS 2 Remove 3 screw fixing at the Indoor Evaporator of the Body(Fig17) (Fig17) 3 Remove the Indoor Evaporator(Fig18) (Fig18) 6. Remove the Motor IDU 1 Remove 1 screw fixing at the Cross Flow fan at the Motor IDU.(Fig19) 2 Remove the Cross Flow Fan.
  • Page 75 In case of power failure, operating the Case Flap PROCEDURES PHOTOS 1. Remove the Case Bottom.(Fig1) (Fig1) 2. Grip the both edges of Case Flap and down it.(Fig2) (Fig2) CAUTION • In case of PCB error or power failure, you should work these method.
  • Page 76 EXPLODED DIAGRAM (Indoor Unit) DSA-0910LR/G-R...
  • Page 77 SPEC REMARK 3114215600 T2.0 * 377.5 * 274 (RED PATTERN) DSA-0910LR-M 3114215700 PANEL GLASS T2.0 * 377.5 * 274 (GOLD PATTERN) DSA-0910LG-M 3114215710 T2.0 * 377.5 * 274 (GOLD PATTERN) 3111416300 Cover led pcb ABS T2.0 3112407500 Insert grille ABS T2.5...

  • Page 78: Control Box Assembly

    CONTROL BOX ASSEMBLY DSA-0910LR/G-M PART NAME PART CODE SPEC Q'TY Harness Display HUB 3112759900 UL 1007 AWG#26, 13P*300mm Harness Stepping HUB 3112760000 UL 1007 AWG#26, 12P*300mm Harness Control HUB 3112761100 UL 1007 AWG#26, 6P*300mm Harness RL Comp 3112762400 UL 1015 AWG#16, 1P*160mm Harness Ground IDU 3112760300 UL 1015 AWG#16, 1P*260mm...
  • Page 79 DAEWOO ELECTRONICS CORP. 686, AHYEON-DONG MAPO-GU SEOUL, KOREA C.P.O. BOX 8003 SEOUL, KOREA TELEX: DWELEC K28177-8 CABLE: “DAEWOOELEC”...

This manual is also suitable for:

Dpa-246lgDsa-0910lr-mDpa-246lr

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