Daewoo DMB-1822LH User Manual Download Page 4

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2. CONFIGURATION

* 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.

Model

DMB-1822LH
DMB-1832LH
DMB-2112LH
DMB-2122LH

Indoor Unit Items

Unit

Capacity

9000 Btu/h

12000 Btu/h

9000 Btu/h

Reference

A & B units are the same

A & B units are different

(DMB-1822LH)

(DMB-2112LH)

12K

(DMB-2122LH)

12K

(DMB-1832LH)

Summary of Contents for DMB-1822LH

Page 1: ...FRIGERANT 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 Contents ...

Page 2: ...W x H x D 750 x 245 x 174 Outdoor Unit Dimensions W x H x D 800 x 615 x 325 Net Weight Indoor Unit kg 7 00 7 00 Outdoor Unit kg 62 0 Electrical Data Compressor Fan Motor Refrigerant R 22 Connection DSB 1822 1832LH W Btu h l h A W A Cooling Heating Cooling Heating Cooling Heating 2637 6 9000 2637 6 9000 2637 6 9000 2637 6 9000 5275 3 18000 5275 3 18000 4 6 990 4 6 990 4 6 990 4 6 990 8 6 1880 8 5 1...

Page 3: ...Outdoor Unit Dimensions W x H x D 800 x 615 x 325 Net Weight Indoor Unit kg 7 00 9 3 Outdoor Unit kg 65 0 Electrical Data Compressor Fan Motor Refrigerant R 22 Connection DSB 2112 2122LH W Btu h l h A W A Cooling Heating Cooling Heating Cooling Heating 2637 6 9000 2637 6 9000 3516 8 12000 3516 8 12000 6154 4 21000 6154 4 21000 4 6 990 4 6 990 6 0 1300 6 0 1300 10 1 2200 10 1 2200 Indoor Unit Cross...

Page 4: ...and operate each A and B unit in DMB 1822LH and DMB 1832LH Model DMB 1822LH DMB 1832LH DMB 2112LH DMB 2122LH Indoor Unit Items Unit Capacity A 9000 Btu h B 9000 Btu h A 12000 Btu h B 9000 Btu h Reference A B units are the same A B units are different A B A B DMB 1822LH 9K 9K A B DMB 2112LH 12K 9K A B DMB 2122LH 12K 9K A B DMB 1832LH 9K 9K ...

Page 5: ...5 750 Plate Mounting REMOCON Connecting Pipe Grille Insert 174 245 Frame Grille Body Plate Mounting 3 OUTLINE AND DIMENSIONS 1 INDOOR UNIT DMB 1822LH unit A B DMB 2112LH unit B 9000 BTU h ...

Page 6: ...6 750 750 Plate Mounting REMOCON Connecting Pipe Grille Insert 174 245 Frame Grille Body Plate Mounting DMB 1832LH unit A B DMB 2122LH unit B 9000 BTU h ...

Page 7: ...DMB 2112LH unit A 12000BTU h 7 REMOCON Filter L Filter R Grille Insert Frame Grille Body Plate Mounting Connecting Pipe Plate Mounting 406 194 285 925 ...

Page 8: ...8 DMB 2122LH unit A 12000BTU h ...

Page 9: ...9 2 OUTDOOR UNIT DMB 1822LH 1832LH 2112LH 2122LH Inlet Outlet Outlet Foot Cushion 800 Cabinet Front Service Cover Service Valve Cabinet Side Panel Top Guide Support Foot 325 ...

Page 10: ...D WITH THE UNIT COPPER TUBING Copper tubing supplied is available at most dealers or A C shops Make sure the new copper tubing has the same specifications and diameter as the original copper tubing and is as short as possible Note The remainders except for No 2 7 11 are contained in the indoor boxes BASIC ACCESSORIES 1 2 8 6 7 9 3 10 11 4 No Description Qty 1 Wall Bracket 2 2 Outdoor Unit Cover 1 ...

Page 11: ...02 2 PVC 75W X 0 1T X 25m 3 Copper Tubing Extension 3104402600 2 1 4 Copper Tube X L5M Wrapped with insulator tube 3104402910 2 3 8 Copper Tube X L5M 4 Insulator Plate 3103301010 2 F US 225 X 120 X 5T 5 Putty 2221040001 2 80g 6 Connection Cord 3112716320 2 3P X 6m 7 Cable tie 3172400500 8 L200 x W4 08 8 Fixture tie mount 3112000300 8 L24 5 x W15 5 x H11 5 x ø6 6 9 Cap wall 3100900600 2 PP 9 7 8 ...

Page 12: ...place the power cord set Drain Hose Ground Wire Not Supplied 3 8 side piping Signal Wire 1 4 side piping Drain Hose Wall Wall Cap Drain Hose Pipes Not Supplied Signal wire Wrap with Tape Copper 12000 BTU h or 9000 BTU h 9000BTU h Tubing At least 30cm 11 8in from unit Maximum Height 7M 21Ft Maximum Length 15M 49Ft Any tube length between 7 and 15 meters must be precharged with freon using the follo...

Page 13: ...eave enough room around the unit for air intake exhaust and possible maintenance 2 Determine if the hole is to be made at the left or right hole location 10 mm 10 mm 150 mm 60 mm 3 Using drill with hole cutting attachment or equivalent cut a hole 65mm 2 56 in diameter The hole should be made at a slight downward slant to the outdoor side Measure the thickness from the inside to outside edges and c...

Page 14: ...If they are not shorting overheating no operation etc may occur Be sure to comply with local codes on running a wire from the indoor to the outdoor unit 1 Open the connection cover on the indoor unit to access the connection area Remove the Connection Cover Loosen the screw fixed at the Connection Cover Remove the Connection Cover 2 Fish the AC connection wire from the rear of the indoor unit thro...

Page 15: ... terminal Outdoor L2 N2 Unit A Unit B Brn Y G Brn Blu Brn Blu Y G Brn Blu Y G Y G Blu Brn Y G Blu L N Power Terminals Signal INDOOR UNIT Control Box INDOOR UNIT Control Box 9000 Btu h 12000 Btu h Terminals Signal NOTE We want you to observe bellow recommended specifications Part Name Power plug Power cable Circuit breaker Connection cable Recommended specifications 250V 10 16A Flexible H05RN F abo...

Page 16: ...y go through the hole in the wall Push the AC connection wire copper tub ing and drain hose through the hole in the wall angling downward Situate the indoor unit on the wall bracket by lifting the indoor unit slightly above the wall bracket and then down so it is securely locked in place Wall Bracket Insert Putty Drain Hose CAUTION When using the tube reamer hold the tube downward and make sure no...

Page 17: ...s from the outdoor unit s valves Connect the larger copper tubing to the larger valve on the outdoor unit Connect the smaller copper tubing to the smaller valve on the outdoor unit 5 Perform a leak test on all copper tube connections To prevent heat loss and damage to walls from conden sation the copper tube connections coming from the wall must be insulated Do this by wrapping foam rub ber or equ...

Page 18: ...older To connect to the wire holder loosen the screw on the wire hold er insert the wires through then tighten the screw NOTES Make sure the outdoor unit s AC cord is not connected to AC power when connecting the indoor outdoor wire When connecting wires make sure they are fully inserted and minimum copper wire is exposed If they are not shorting overheating no operation etc may occur Be sure to c...

Page 19: ...en 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 connection DMB 1822 1832 2112 2122LH ...

Page 20: ...r Be sure to comply with local codes on running a wire from the indoor to the outdoor unit Must be careful to insert signal wire connectors where like color is like color 1 Remove the screw holding on the connection cover Remove the connection cover on the outdoor unit to access the connection area 3 Insert the indoor connector into the outdoor connector from the PCB Board individually as the foll...

Page 21: ... running the wire hose and tubing outside tape them up as shown below to insulate 1 Apply the putty to any area on the outside hole that air or rain can get into Apply Putty Here Tubing 2 After applying putty insert the wall Cap at Indoor side and Outdoor side Wall Bracket Insert Putty Wall Cap Drain Hose APPLYING PUTTY AND INSERTING WALL CAP After running the wires and tubing outside putty should...

Page 22: ...narrow service valves on the outdoor unit Note that both narrow and wide tube service valves on the out door unit are kept closed at this stage shipping position Leak Test 1 With the service valves on the outdoor unit remaining closed remove the threaded cover on the wide tube service port Save for reuse 2 Attach a manifold valve with pressure gauge and dry nitro gen gas cylinder to this service p...

Page 23: ...e hose 4 Replace the threaded cover on the wide tube service port and fasten it securely This process is very important to prevent gas from leaking from the system 5 Replace the valve caps at both wide and narrow service valves and fasten them securely This completes air purging with a vacuum pump The air conditioner is now ready to test run If tubing length is less than 33 ft 10 m 10 min or more ...

Page 24: ...alve stem be sure to use a hex wrench PUMP DOWN Pump Down means collecting all refrigerant in the outdoor unit without loss in refrigerant gas This is performed when the unit is to be relocated or the refrigerant circuit is serviced CAUTION Be sure to perform Pump Down procedure with the unit cooling mode Pump Down Procedure execute the pump down of the unit A and unit B respectively 1 Connect a l...

Page 25: ...e push pin or with vacuum pump Operation Open Open Closed with valve cap with valve cap with cap 2 Pumping down Closed Open Open connected Transfering clockwise counter clockwise manifold gauge 3 Evacuation Open Open Open Servicing with charging cylinder 4 Gas charging Open Open Open Servicing with charging cylinder 5 Pressure check Open Open Open Servicing with charging cylinder 6 Gas releasing O...

Page 26: ...ceiver Signal wire Remote Controller Fan Direction Up Down Air Outlet Antibacterial Filter removes dust and prohibits germs Lamp 9000 BTU h Class DMB 1832LH unit A B DMB 2122LH unit B Electrostatic Filter removes dust and particles from the air Deodorizing Filter removes bad smells from the air Air Inlet Remote Controller Receiver Signal wire Remote Controller Fan Direction Up Down Air Outlet Anti...

Page 27: ...mote Controller Fan Direction Up Down Air Outlet Antibacterial Filter removes dust and prohibits germs 12000 BTU h Cla ss DMB 2122LH unit A Electrostatic Filter removes dust and particles from the air Deodorizing Filter removes bad smells from the air Air Inlet Remote Controller Receiver Signal wire Remote Controller Fan Direction Up Down Air Outlet Antibacterial Filter removes dust and prohibits ...

Page 28: ...er push the emergency button EMERGENCY to operate by hand Open the front panel on emergency operating Remocon switch is usually used with remote controller Indoor Unit Display Switch Panel Timer Yellow Lights on during the time of reservation mode Quick Red Lights on during the time of Quick Mode ON Red Lights on during the operation Air clean Green Lights on during the operation ON AIR CLEAN QUIC...

Page 29: ...utton EMR to operate by hand Open the front panel on emergency operating Remocon switch is usually used with remote controller Indoor Unit Display Switch Panel Timer Yellow Lights on during the time of reservation mode Quick Red Lights on during the time of Quick Mode ON Red Lights on during the operation Air clean Green Lights on during the operation EMR REMOCON INDOOR UNIT DMB 2122LH unit A 1200...

Page 30: ...o operate by hand Open the front panel on emergency operating Remocon switch is usually used with remote controller Indoor Unit Display Switch Panel Timer Yellow Lights on during the time of reservation mode Quick Red Lights on during the time of Quick Mode ON Red Lights on during the operation Air clean Green Lights on during the operation EMR REMOCON INDOOR UNIT DMB 1822LH unit A or B DMB 2112LH...

Page 31: ...o operate by hand Open the front panel on emergency operating Remocon switch is usually used with remote controller Indoor Unit Display Switch Panel Timer Yellow Lights on during the time of reservation mode Quick Red Lights on during the time of Quick Mode ON Red Lights on during the operation Air clean Green Lights on during the operation EMR REMOCON INDOOR UNIT DMB 1832LH unit A or B DMB 2122LH...

Page 32: ... A AIR IN B AIR OUT Connection Cover Remove cover to access the AC connection to the indoor unit Service Valves The indoor and outdoor units are connected by copper tubes which are connected here oor Unit ...

Page 33: ...Fan Dry SLEEP Button Press to set the unit for the sleep mode FAN DIR FAN DIR Button Press to select up down direction for fan ON OFF Button Press to turn the unit on or off TEMPERATURE Buttons Press to raise or lower the desired temperature FAN SPEED Button Press to select the fan speed High Middle Low COVER Slide down to access most of the remote buttons Slide down further to access the battery ...

Page 34: ...E N R R MODE Indicators Auto Quick Cool Fan Dehumidifier Heat Lights to indicate the mode selected TIMER Indicators Include sleep Lights to indicate the timer function mode TEMPERATURE RESERVATION TIME lndicator Lights to indicate the temperature or time FAN DIRECTION Indicators Lights to indicate the fan direction NATURAL Indicator Lights to indicate the speeds simulating a breeze FAN Indicators ...

Page 35: ...r If the Indoor Unit Display receive the signal of Remote Controller you can hear the signal beep or beep beep 1 In the case of receiving ON OFF signal beep beep 2 And so on beep imer 4 DESCRIPTION OF FUNCTIONS Unit ON Unit OFF SET Time HOUR ON OFF mer Unit ON Unit OFF SET Time HOUR ON OFF ol of Room Temperature r COMP ON RT ROOM TEMPERATURE DT DESIRED TEMPERATURE COMP OFF 1 C COOLING RT DT COMP O...

Page 36: ...omatic Operation If the unit is set in AUTO mode the unit operates automatically according to the room temperature to keep the room temperature comfortable 0 C L M H 1 C 2 C R T D T D T 0 C L M H 1 C 2 C DT RT COOLING HEATING FAN ONLY COOL DEHUMI AUTO QUICK HEAT DIFICATION H H H L H H H M M M L M H M L L L L L H L Auto X Auto L Auto H Auto Natural Natural Natural L Natural H Natural ...

Page 37: ...e 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 The control procedure for indoor coil freeze protection 1 The compressor and outdoor fan turn off 2 Indoor fan operates according to user set speed 3 The normal operation returns when the indoor coil temperature is high...

Page 38: ...al power up RT Room temperature 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 Emergency Operation ROOM TEMPERATURE DT 2 RT DT 2 RT DT 3 DT...

Page 39: ...et temperature 18 Compressor and Outdoor Fan The air discharge direction procedure is below Fixed Up Down Up Down Fixed The option is LEFT RIGHT direction Dehumidification Mode Air Discharge Direction only remocon operation Quick Mode Powerful Cooling Heating The air discharge direction procedure is below Fixed Up Down Fixed Up Down Desired temperature Room temperature Outdoor Fan Compressor ON In...

Page 40: ... or short It doesn t work Compressor or electrical parts Showing them at only Emergency of compressor error mode but continuously working Gas leak Communication error between Check connection and restart I D U and O D U 4 Way Valve or electrical parts of Showing them at only Energency 4 Way valve mode but continuously working Operation mode is different from the other unit 0 2S 1S ON Airclean LAMP...

Page 41: ...41 6 WIRING DIAGRAM DMB 1822 1832LH ...

Page 42: ...2L 250V 3 15A 2 Stepping Motor 3108003900 GSP 24SW 061 2 Terminal Block 3108914100 JXO CH 3P 2 Compressor 3RC0020KM1 RBB095M011 2 Fan Motor 3118002400 A2919BA010 1 Dual Capacitor 3116903400 5 25uF 400VAC D50 1 Terminal Block 3118800200 JXO CH 2P 1 3108912320 DTB 04P 1 Reversing Valve 3105401010 STF 0101 2 Solenoid Coil 3109700110 STF 01AH897A1 2 Outdoor Unit Indoor Unit 9K 42 ...

Page 43: ...43 DMB 2112 2122LH ...

Page 44: ... Fan Motor Capacitor 3106900300 1 0uF 400VAC 1 Fuse 5FVLB3152L 250V 3 15A 1 Stepping Motor 3108000100 MP28GA L 400mm 1 Terminal Block 3108914100 JXO CH 3P 1 Compressor 3RC0020KM1 RBB095M011 1 3RC0030CM0 RCB120M001 1 Fan Motor 3118002400 A2919BA010 1 Dual Capacitor 3116903400 5 25uF 400VAC D50 1 Terminal Block 3118800200 JXO CH 2P 1 3108912320 DTB 04P Reversing Valve 3105401010 STF 0101 2 Solenoid ...

Page 45: ...ERANTC YC LE 1 DMB 1822 1832LH unit A B DMB 2112 2122LH unit B 2 DMB 2112 2122LH unit A Contents Classes Capillary Tube Charge Quantity 9000 Btu h Class ID 1 6 x L1270 750 g 12000 Btu h Class ID 1 6 x L1000 1150 g ...

Page 46: ... Indoor coil temp Air clean lamp Quick lamp Remote Emergency Operation Signal receiver Timer lamp A D converter lnitialization Clock generation DC power supply Circuit for TRIAC control DC 12V Circuit for signal receiver MICRO CONTROLLER Beeper circuit for motor driving Stepping motor Temp Setting ON OFF SLEEP REMOCON STEPPING MOTOR ON OFF DC5V IN DO O R PART ...

Page 47: ...47 in DOOR unit OD sensor TRANS Former Micro Controller A D Converter Communication Relay Out put Driver RL 1 Comp B 4W A 4W B FAN COMP A RL 2 RL 3 RL 4 RL 5 DC POWER 12V 5V DC 12V AC 220V OUT DOOR PART ...

Page 48: ...ck press the power ON OFF button on remote controller Does the beeper beep two times Is the display all off Check the connector on display PCB connected to control PCB Check the display PCB itself Check power supply mains or interconnection wires Check the wiring of indoor Is the switch position on switch pannel at Remote Does control PCB status LED repeat one second on and off control PCB fault M...

Page 49: ...utes time guard for compressor operated iagnostic Function Error CODE Display Check point 1 ON Air clean LAMP I D Sensor Registance check 1 time blink I D Sensor Connection check 2 Timer LAMP O D Sensor Registance check 1 time blink O D Sensor Connection check 3 ON Air clean LAMP Compressor and its electrical parts check 2 times blink Leakage check I D Sensor assembly check 4 Timer LAMP Communicat...

Page 50: ...s not run The power is applied to the unit Check the voltge between and of terminal block Y L Check the Breaker or Fuse Self Diagnostic function is ON Check according to self Diagnostic function Control P C B defect Check the indoor unit display is the display all off Press the ON OFF switch of Remote Control Is the indoor unit display all off Pull out the power plug and then insert the power plug...

Page 51: ...heck the fan motor capacitor Check the connecting wire of indoor fan motor Run again Check the starting of indoor fan motor Run again Check the Fan Motor bearing and fan Check the power P C B The circuit for triac control Change of fan motor Normal NO Rating voltage under 85 Open or short No YES Rating Voltage more than 90 Normal oor Unit Runs but Indoor Fan Does Not Run ...

Page 52: ...compressor 3 During frost prevention of lndoor unit 4 During dehumidifier mode oor Fan and Compressor Do Not Run Check the voltge between and of indoor unit terminal N L Check the voltge between and of outdoor unit terminal N L Check compressor outdoor fan motor individually Check the connecting wire Check the wiring and voltage within doors Rating voltage under 85 Rating voltage under 85 52 ...

Page 53: ...heck the compressor Check the winding resistance Check the compressor capacitor Check the connecting wire between indoor and outdoor Change the control P C B Change the compressor Check the control P C B the circuit for relay driving Rating voltage less than 85 NG Open or Short Rating voltage less than 85 Rating voltage more than 90 Rating voltage more than 90 OK Compressor Does not Run ...

Page 54: ...DMB 1822 2112 2122LH O utdoor 10 PC B DRIVING DESC RIPTION 1 P CB CI R CU I T D I A G R A M ...

Page 55: ......

Page 56: ...DMB 1822 2112 2122LH 9K indoor ...

Page 57: ......

Page 58: ...DMB 2112 2122LH 12K indoor ...

Page 59: ......

Page 60: ... 1 CE4 RESISTOR 1 4W 12 7KF 2 R3 14 RESISTOR 1 4W 10KJ 4 R7 8 15 16 RESISTOR 1 4W 5 6KJ 1 R1 RESISTOR 1 4W 1KJ 7 R2 5 6 9 10 11 12 RESISTOR 1 4W 330J 2 R4 13 RESISTOR 1 4W 202J 3 R17 18 19 RESISTOR ARRAY 6A 103J 1 RA1 FUSE 250V 50T 3 15A 1 FUSE FUSE CLIP AFC 520 2 FUSE CLIP VARISTOR 15G561K 1 VAR C LINE ACROSS 275V 104K 1 CL1 HEAT SHINK 33 H 23 17 1 HS1 IC2 WASHER 3 6 1 SCREW T2S TRS 4 12 MFZN 1 J...

Page 61: ...SISTOR 1 4W 15 0KF 1 R27 RESISTOR 1 4W 18 2KF 1 R27 RESISTOR 1 4W 24 9KF 1 R28 RESISTOR 1 4W 11 1KF 1 R28 RESISTOR 1 4W 12 4KF 1 R29 RESISTOR 1 4W 28 0KF 1 R29 RESISTOR 1 4W 3 24KF 1 R30 RESISTOR 1 4W 8 45KF 1 R30 RESISTOR 1 4W 28 0KF 2 R27 28 RESISTOR 1 4W 2 87KF 2 R29 30 RESISTOR 1 4W 24 3KF 1 R31 RESISTOR 1 4W 12 4KF 1 R31 RESISTOR ARRAY 6A 103J 1 1 RA1 C ARRAY F5 104Z 1 1 CA1 FUSE 250V 50T 3 1...

Page 62: ... Buzzer Driving Swing Sweep Motor And it is regulated 5V DC by Regulator IC7805 Zero cross Communication line 12V GND CN4 O D U I D U Oscillator 2 19 OSC 8M 20 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 ...

Page 63: ...ange of Thermister Resistance Micom is put in 5V by ratio between R9 12 7KΩ and R10 12 7KΩ Relation between temperature and voltage is following Table 3 1 CC3 4 is Noise filter Temperature C No 1 No 3 5 1 127 1 127 0 1 378 1 378 5 1 650 1 650 10 1 936 1 936 15 2 228 2 228 Voltage V Table 3 1 Sensor 3 I D SENSOR ROOM SENSOR R7 R6 330 330 CC3 103 103 CC4 24 25 MICOM CN9 R9 12 7KF R10 12 7KF ...

Page 64: ...l 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 Ref Fig 4 1 SN1 is Snubber N L AC 220V TO MOTOR T1 SM3JZ47 L1 1 2 130µH 3A SN1 0 1µF 120Ohm TLP561 PT1 12V R2 TRI C102M 1K 1 2W MICOM 13 AC220V TRIGGER MOTOR INPUT Fig 4 1 LOW SPEED MEDIUM SPEED HIGH SPEED ...

Page 65: ...USTOM CODE DATA CODE CHECK SUM TAILER 9ms 4 5ms 16bit 16bit 24bit 8bit Fig 5 1 Fig 5 2 BIT STRUCTURE Remote Controller 5 0 56ms 0 56ms 1 69ms 1 12ms 2 25ms bit 0 bit 1 Selecting Mode 6 SELECT S W INPUT OUTPUT MICOM 14 R5 1K 10K R4 5V CC7 103 P2 MODE SELECT PUSH S W DESCRIPTIO N There are Mode according to SW position as following Table 6 1 According as port of fixed Micom is Low the unit is operat...

Page 66: ...63 DESCRIPTION MICOM Power is supplied 5V at Number 42 using VDD Number 19 20 Using Oscillator Micom Power Supply 7 VDD 42 CE4 10µF 16V CC9 104 5V 22 21 19 OSC 8MHz 20 VSS MICOM ...

Page 67: ...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 Reset 8 R3 5 6K 1K R13 18 CC6 CE3 4 7uF 50V IC3 7042P 10 3 MICOM 4 25V H L t t POWER ON Vcc 5V DELAY TIME FOR POWER ON RESET ...

Page 68: ...ected by internal Micom This unit is setting at 4KHz VCC 12V MICOM 35 R6 1K BZ1 Buzzer Driving 10 DESCRIPTION Indoor Fan Motor RPM is set by each registance R27 R28 R29 R30 R31 30 29 28 27 26 1K 1K 1K 1K 1K R26 R25 R24 R23 R28 R29 R30 R31 R22 MICOM CA1 F5 104Z RA1 R27 heat low heat high cool low cool high monitoring 6A 103J I D FAN RPM SETTING ...

Page 69: ...r TR1 is used to put in the Micom Detail Driving is as following Fig 11 1 R19 is Resistance to limit current MICOM R36 5 6K 1 2 CC12 103 TR7 KRC120M 1 2 1 2 3 2 1 R33 10K R32 1K VCC CN4 31 DETECT POINT H The Number 31 of Micom terminal AC18V L Fig 11 1 Zero Crossing Detect 11 ...

Page 70: ...n and it is used 4 face Drive Method It is driving as following Fig 12 1 Ring Count Method of 8 Status Ø 4 Ø 3 Ø 2 Ø 1 B 6 5 4 3 2 1 12V KID65004 1 MICOM 2 3 4 M1 FOR SWING Ø 4 Ø 3 Ø 2 Ø 1 Fig 12 1 Normal Rotating Reversed Rotating Stepping Motor Driving 12 CN9 IC4 ...

Page 71: ...68 DESCRIPTION Each 2 ports 34 32 are using communication between I D U and O D U 34 Micom 32 CC11 103 R35 1K TR5 C102M R34 10K R19 10K CN4 A1270 TR6 Communication circuit 13 ...

Page 72: ...IC7805 AC 220V CL1 CC3 275V 104K VAR FUSE1 3 15A POWER TRANS D2 CC1 CE1 D3 D1 D4 104 35V 2200 F IC2 7812 VI VO G IC3 7805 VI VO G 25V 470 F CC2 CC3 CE3 CE2 104 16V 100 F 104 12V 5V O scilla tor 2 1 OSC 8M 2 VDD 10 VSS 10 Fig 2 1 DESCRIPTIO N Oscillatory Frequency drive Micom it is made up 8MHz resonator oscillatory Freqency Ocillatory wave is as following Fig 2 1 OUTDOOR CONTROL PCB ASS Y ...

Page 73: ...perature 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 CC7 is Noise filter Temperature C No 1 No 3 5 1 127 1 127 0 1 378 1 378 5 1 650 1 650 10 1 936 1 936 15 2 228 2 228 Voltage V Sensor 3 O D SENSOR CN13 330 R13 R14 12 7kF CC7 103 13 MICOM Table 3 1 ...

Page 74: ...71 DESCRIPTION MICOM Power is supplied 5V at Number 28 using VDD Number 1 2 Using Oscillator Micom Power Supply 5 CE4 10µF 16V CC9 104 5V 22 21 OSC 8MHz VSS MICOM 1 2 VDD 28 ...

Page 75: ...n 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 Reset 6 R1 5 6K 1K R2 3 CC4 CE3 4 7uF 50V IC4 7042P 103 MICOM 4 25V H L t t POWER ON Vcc 5V DELAY TIME FOR POWER ON RESET ...

Page 76: ... 1R3 C102 CN12 CN11 R12 1K R11 1K R15 10K R10 1K R9 1K R7 10K TR2 A1270 TR1 A1270 R8 10K TR4 102 IC1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 DESCRIPTION Relay is controlled by Drive ICS IC5 IC6 Relay Control Circuit 8 28 IC1 16 RL 1 RL 2 RL 3 RL 5 RL 4 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 27 26 25 24 23 22 21 20 19 18 17 16 15 CC8 104 IC5 65004 ...

Page 77: ...again Check the Following BATTERY SPRING MICOM PCB LCD Is Display at the beginning ON Is Display at the beginning ON Is it normal Is it normal Is it normal 2 REMOTECONTROLLERASSMBLYFUNCTIONALTESTMETHOD 74 ERROR No ERROR No Whenever you selectted Temp Button it is changed by 1 21 32 Select TEMP Button Select ON OFF button Is display at the begining ON Is it normal ...

Page 78: ...L Button Select ON OFF Button Select OFF Timer Button Select SLEEP Button Select SLEEP Button TEST OK Is LCD display OFF Is it normal display TIMER Is all display OFF Is it normal SLEEP MODE Display ON Is display at the beginning ON ERROR No ERROR No ERROR No ERROR No ERROR No ERROR No ...

Page 79: ...CK P75 SO P74 SI P73 SCK P72 PDO PWM P71 NT4 P70 NT3 TC3 P07 P06 P05 P04 P03 P02 P01 P00 TEST RESET XIN XOUT VASS VSS 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 Steppping Motor Driving Buzzer Driving Communication out Remocon Input Communication input Zero crossing detect Test S W Input Indoor fan motor RPM set Temperature Sensor Input LED Driving Indoor unit Motor driving Emer...

Page 80: ...83 T1 R82 INT1 R81 T2 R80 INT2 R63 R62 R61 R60 R53 AIN7 XOUT XIN RESET R70 R71 PULSE R72 VAREF R40 AINO R41 AIN1 R42 AIN2 R43 AIN3 R50 AIN4 R51 AIN5 R52 AIN6 VSS 28 27 26 25 24 23 22 21 20 19 18 17 16 15 Reset circuit Communication circuit Temperature sensor input Relay control output Oscillation ...

Page 81: ...ODES COMMON 10 5KΩ 7 2KΩ 3KΩ OUTPUT GND INPUT 100K 500 100 100 0 3 10K 6K 500 1K 5K 28K 6K 30pF 2K 5K 200 240 1 4 K 2 7 K 3 3 K 0 19K INPUT OUTPUT GND SCHEMATIC DIAGRAM 1 2 3 Fin 2 is ground for Cose 221A Case is ground for Case 1 10K INPUT GND 10K 300 36K 64K 520 26K 60K 29K 20K 20K 40 pF 50K 50 200 300 200 100 16K 210 012 OUTPUT Top View Pin 1 INPUT 2 GROUND 3 OUTPUT Pin 1 INPUT 2 GROUND 3 OUTPU...

Page 82: ...79 6 U9 KIA7042P RESET IC KIA70 42P OUTLINE INPUT GROUND OUTPUT VCC 1 3 2 OUT GND ...

Page 83: ...at the Control PCB Remove the select switch from connection at the Control PCB Loosen the screw fixed at ground wire Remove the Control Box 4 Removing the Drain Pan Fig 4 Disconnect the Body drain hole left and right Body Disconnect three hook and remove the Drain Pan 5 Removing the Indoor Evaporator Fig 5 6 Remove the screw fixed at the indoor Evaporator of the Body Remove the hook fixed at the B...

Page 84: ...rom connection at the Control PCB Remove the select switch from connection at the Control PCB Loosen the screw fixed at the ground wire Remove the Control Box 4 Removing the Drain Pan Fig 4 Disconnect the Body drain hole left and right Body Disconnect three hooks and remove the Drain Pan 5 Removing the Indoor Evaporator Fig 5 6 Remove three screws fixed at the indoor Evaporator of the Body Remove ...

Page 85: ...e from connection at the Control PCB Remove the select switch from connection at the Control PCB Loosen the screw fixed at ground wire Remove the Control Box 4 Removing the Drain Pan Fig 4 Disconnect the Body drain hole left and right Body Disconnect three hook and remove the Drain Pan 5 Removing the Indoor Evaporator Fig 5 6 Remove the screw fixed at the indoor Evaporator of the Body Remove the h...

Page 86: ...emoving the Propeller Fan Fig 3 1Loosen the screw fixed at the motor bracket 2Remove the Plain Washer 3Remove the Propeller Fan 4 Removing the panel control Fig 4 1Disconnect the wire at the control panel 2Loosen the screw at the panel control 3Remove the parts on the panel control 5 Removing the partition panel Fig 5 1Loosen four screws at the bracket motor 2Disconnect the wire at the control pan...

Page 87: ...84 3 EX P LO D ED D I A G R A M I n d o o r U n it DMB 1822LH DMB 2112 2122LH unit B 9K ...

Page 88: ... 3114302100 CONTROL PCB ASS Y 9K 1 DMB 1822LH UNIT A 19 5 3108914100 TERMINAL BLOCK 1 JXO CH 3P 19 6 3104896300 SENSOR ID ASS Y 1 PTM KD 43C D2 19 7 3112716200 HARNESS EARTH 1 UL1015 16 x L200 19 8 7111301611 SCREW TAPPING 2 T1S PAN 3x16 MFZN 20 3100400401 BODY TOP 1 HIPS T2 0 21 3102200800 FRAME GRILLE 1 HIPS T2 5 22 3104508700 PLATE LED 1 PC SHEET T0 2 23 3104510200 PLATE SWITCH 1 PC SHEET T0 2 ...

Page 89: ...86 DMB 2112LH unit A 12K ...

Page 90: ...3 3107600400 FLAP 1 HIPS T2 5 14 3108003900 MOTOR STEPPING 1 MP24GA or GSP 24SW 15 3110055300 CONTROL BOX ASS Y 1 BUYER 15 1 3100503101 BOX CONTROL 1 ABS VO BLACK T2 0 15 2 5EPV050100 TRANS FORMER 1 DWA220A 50 60Hz 15 3 3106900310 CAPACITOR SH M B 1 1 0uF 400VAC 15 4 3114302110 CONTROL PCB ASS Y 12K 1 DMB 2112 2122LH 12K unit A 15 5 3104301600 LED PCB ASS Y 1 DSB 122L LH 15 6 3108914100 TERMINAL B...

Page 91: ...AME C 1 HIPS 15749 T2 0 21 3100800900 CAP FRAME R 1 HIPS 15749 T2 0 22 3101401701 COVER TER BLOCK 1 HIPS T2 0 23 3101901300 FILTER ELECTRO ASS Y 1 WHITE 24 3101901200 FILTER CARBON ASS Y 1 BLACK 25 3100017700 FILTER PRE ASS Y 2 P P T2 0 26 3108402400 REMOCON ASS Y 1 LH English BUYER 27 3102401500 INSERT GRILLE 1 HIPS T3 0 28 3100602400 BRACKET PIPE 1 HIPS T2 0 29 3101201200 CLAMP BRACKET PIPE 1 HI...

Page 92: ...89 DMB 2122LH unit A ...

Page 93: ... 3108003910 MOTOR STEPPING 1 MP24GA 18 7141400811 SCREW TAPPING 2 T2 PAN M4x8 MFZN 19 3104301700 LED PCB ASS Y 1 DSB 123L LH PH 20 3110063650 CONTROL BOX ASS Y 1 DMB 2122LH UNIT A 21 3110504000 CONTROL BOX 1 HIPS T2 0 BLACK 22 3101204600 CLAMP POWER CORD 1 DA 4N 23 7172401211 SPECIAL SCREW 1 TT2 TRS 4 12 MFZN 24 3111200800 CLAMP WIRE 1 HIPS T2 0 BLACK 25 7172401211 SPECIAL SCREW 1 TT2 TRS 4 12 MFZ...

Page 94: ... LED 1 PC SHEET T0 2 41 7172401211 SPECIAL SCREW 4 TT2 TRS 4 12 MFZN 42 3103401400 KNOB SWITCH 1 DSB 240L LH 43 3101902610 FILTER ELECTRO ASSY 1 WHITE 44 3101902510 FILTER CARBON ASSY 1 BLACK 45 3111901400 FILTER FRAME 2 P P T2 0 BLACK 46 3111403400 COVER TERMINAL BLOCK 1 HIPS T2 0 47 7S422X40B1 SCREW TAPPING 1 TT2 TRS 4 12 MFZN 48 3112401900 GRILLE INSERT 1 HIPS T2 5 GY171A 49 3111403700 COVER LE...

Page 95: ...92 4 EXPLODED DIAGRAM Outdoor Unit DMB 1822 1832LH 5 ...

Page 96: ... SECC T0 8 19 3110602800 BRACKET SERVICE 1 SECC T1 6 20 3115402000 SERVICE VALVE G 3 8 2 21 3115402100 SERVICE VALVE L 1 4 2 22 3101402500 COVER SERVICE 1 ABS 23 3110801200 CABINET FRONT 1 SECC T0 8 24 3112402200 GRILLE DISCHARGE 1 470 P2 5 Steel wire 25 3114203400 PANEL TOP 1 SECC T0 8 26 3103510700 LABEL BRAND 1 PC 346x90xT0 4 27 3110056000 PANEL CONTROL ASS Y 1 27 1 3110023850 ODU CONTROL PCB A...

Page 97: ...DMB 2112 2122LH 94 ...

Page 98: ...IDE 1 SECC T0 8 19 3110602800 BRACKET SERVICE 1 SECC T1 6 20 3115402000 SERVICE VALVE G 3 8 2 21 3115402100 SERVICE VALVE L 1 4 2 22 3101402500 COVER SERVICE 1 ABS 23 3110801200 CABINET FRONT 1 SECC T0 8 24 3112402200 GRILLE DISCHARGE 1 470 2 5 Steel wire 25 3114203400 PANEL TOP 1 SECC T0 8 26 3103510700 LABEL BRAND 1 PC 346x90xT0 4 27 3110056000 PANEL CONTROL Ass y 1 27 1 3110023850 ODU CONTROL P...

Page 99: ...96 5 CONTROL BOX ASSEMBLY DMB 1822 1832LH DMB 2112 2122LH unit B 9K L N ...

Page 100: ... ID ASSÕY 1 PTM KD43C D2 6 3104398201 LED PCB 1 110 x 31 x T1 6 7 3112708600 HARNESS SIGNAL 2 1 UL2464 24x5x6000 Red 8 3102797910 HARNESS I D EARTH 1 I D EARTH 9 3112709500 HARNESS POWER 1 UL1015 20 20x120 Blu Brn 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 ...

Page 101: ...98 DMB 2112LH unit A 12K ...

Page 102: ... 0uF 400VAC H1 3112703400 HARNESS LED PCB 1 UL1007 26 x 7 x 270 H2 3112703500 HARNESS SELECT S W 1 MODE SELECT H3 3102797910 HARNESS I D EARTH 1 I D EARTH S 3104896300 SENSOR ID ASS Y 1 PTM KD 43C D2 7 3112708500 HARNESS SIGNAL 1 1 UL 2464 24 x 5 x 6000 wht Option 8m 12m Caution In this Service Manual some parts can be changed for improving their performance without notice in the parts list So if ...

Page 103: ...100 DSB 2122LH unit A 12K ...

Page 104: ...L1007 7x26AWG 6 3112709500 HARNESS ID POWER 1 7 3112716200 HARNESS EARTH 1 UL 1015 16x200 8 3112708500 HARNESS SIGNAL 1 1 UL 2464 24x5x6000 Wht option 8 12m 9 3104896300 SENSOR ID ASS Y 1 PTM KD 43C D2 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 ...

Page 105: ...102 6 CONTROL PANEL ASSEMBLY 7 j ...

Page 106: ...112708900 HARNESS RELAY 2 UL1015 16 BLU 16 3112709200 HARNESS POWER OD 1 UL1015 20 BR BL 17 3112709600 HARNESS COMP A 1 UL1015 16 WH BL YE 18 3112709650 HARNESS COMP B 1 UL1015 16 BR BL RE 19 3112709000 HARNESS LIVE 1 UL1015 14 18 BRN 20 3112709100 HARNESS NEUTRAL 1 UL1015 14 18 BLU 21 3101200410 CLAMP CODE 2 DA 3N NYLON 22 3114800600 HARNESS COIL SENSOR 1 TSD310DEAACX 20 WHT 23 3114800700 HARNESS...

Page 107: ...RONICS 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: ...H DAEWOO ELECTRONICS CO LTD by Nemko 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 S M No 3113907400 ...

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