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SERVICE

Manual

CONTENTS

AIR CONDITIONER

1. Installation

2. Disassembly and Reassembly

3. Troubleshooting

4. Exploded Views and Parts List

5. Refrigerating Cycle Block Diagrams

6. Wiring Diagrams

7. Schematic Diagrams

ROOM AIR CONDITIONER

INDOOR UNIT
AD26A1C13
AD18A1C09

OUTDOOR UNIT
UD26A1C2
UD18A1C2

E DB68-31043A(5)

1-31043A(5)-CO 4/17/01 2:11 PM Page 1

Содержание AD18A1C09

Страница 1: ... 2 Disassembly and Reassembly 3 Troubleshooting 4 Exploded Views and Parts List 5 Refrigerating Cycle Block Diagrams 6 Wiring Diagrams 7 Schematic Diagrams ROOM AIR CONDITIONER INDOOR UNIT AD26A1C13 AD18A1C09 OUTDOOR UNIT UD26A1C2 UD18A1C2 E DB68 31043A 5 ...

Страница 2: ...ional refrigerant should be charged by extra metre You donÕt have to charge additional refrigerant up to 10 metres of connecting pipe 1 Remove the valve stem cap and service port of 3 way valve 3 Operate the unit at the cooling mode 4 Slowly open the valve of the low pressure side of Manifold gauge counterclockwise until the low pressure of manifold gauge indicates 4 8 to 5 5 kg cm2 68 a 78psi at ...

Страница 3: ...3 Way Valve Refer to this procedure when the unit is relocated 1 Confirm that both the 2 way and 3 way valves are set to the open position 1 Remove the valve stem caps 2 Be sure to use a hexagonal wrench to operate the Gas side valve stems 2 Operate the unit for 10 to 15 minutes 3 Stop operation and wait for 3 minutes then connect the charge set to the service port of the 3 way valve 1 Connect the...

Страница 4: ...l upper 3 Contract the second finger to the left and right handle and pull to open the inlet grille 4 Take the left and right filter out 5 Loosen one of the right fixing screw and seper ate the terminal cover 6 Open the cover screw and loosen three fixing screws of front grille 7 Pull the upper left and right of discharge softly for the outside cover to be pulled out 8 Pull softly the lower part o...

Страница 5: ...de of Indoor unit 2 Take the display PCB out Center of indoor unit 3 Loosen three fixing screws of left and right 4 Pull tray drain out from the back body 1 Do above 2 Take all the connector of PCB upper side out Inclusion Power cord 3 Separate the outdoor unit connection wire from the terminal block 4 If pulling the Main PCB up it will be taken out Separate the TRANS hook it before 2 1 2 1 2 3 4 ...

Страница 6: ...1 Do above 2 Loosen the fixing two screws and separate the motor holder 3 Loosen the fixing screw of motor fan By use of M3 wrench Separate the motor from the fan Separate the fan motor the left holder bearing 5 1 2 3 4 1 2 3 4 5 6 Lifting the heat exchanger up a little to push the up side for separation from the indoor unit ...

Страница 7: ...e control box cover 4 Unplug the ass y cable 5 Remove the cabi side 6 Remove the cabi front When you assemble the parts check if the each parts and electric connectors are fixed firmly 1 Do Procedure above 2 Remove the nut flange Turn to the right to remove as it is a left turned screw 3 Disassemble the propeller fan 1 1 2 UD18A1C2 UD26A1C2 UD26A1C2 UD18A1C2 ...

Страница 8: ...tently in a HEAT mode 9 The compressor stops intermittently in a COOL mode or DRY mode and fan speed of the indoor unit decreases It indicates power is on The LED stops blinking if the operation ON OFF button on the remote control unit is pushed The speed of the indoor fan is set to LL in DRY mode Fan speed is 5 steps is selected automatically in AUTO mode Compressor operation is controlled automa...

Страница 9: ...ceived Is there no problem between the connector of AssÕy display PCB and the receiving module Replace of Ass y display PCB Is the fuse F701 250V 3 15A of PCB open Is the voltage at Socondery side of transformer of PCB TN71 AC15V AC25V Is the output voltage of voltage regulator IC KA 7812 DC 10V and 12V Is the output voltage of electrostatic voltage regulator IC KA 7805 DC 4 5 V 5 5 V Replace the ...

Страница 10: ...minal of PCB terminal RY71 72 73 are assembled in the correct position Is the fuse open F701 Is the fuse F101 250V 2 A blown out Check whether the output voltage of IC01 KA 7812 is DC 12V Check whether the output voltage of IC02 KA 7805 is DC 5V Insert the primary side of power transformer in the terminal GT01 and then is the voltage of secondary side normal AC 15V AC 25V Measurement of resistance...

Страница 11: ...ss y due to the Micom defect If the power is not available indoor unit item no 3 3 1 Replace of indoor unit PCB Ass y Replace the IC 06 KID 65003 and SS71 G3MB202pl Replace Q401 Ksc 945Y Replacement of indoor unit fan motor Is the operation lamp flickering for 3 minutes and then put off Is AC 120V and higher shown across the indoor fan con nector CN73 Is the type of MICOM IC 04 Pin no 63 old type ...

Страница 12: ...is selected according to the temperature condition of outdoor room 2 When A room and B room are mixed to operate it is always under low operation 3 Perform the comp ON OFF control in the dry mode 4 When it is under the operation of anti freezing overload protection defrost operation it may be Low high or Off 5 Hi High speed Low Low speed Apply the power to the outdoor unit and operate the indoor u...

Страница 13: ...pushed Voltage at pin 33 36 of micom ICO4 change Squarewave Volatge at pin 13 14 15 16 of IC05 KID65003 change Squarewave UP DOWN louver motor is faulty Driver IC05 KID65003 is faulty Micom IC04 is faulty Normal Check as in the procedure No Power parts Refer to page 12 Y Y N N N Y Y Y 1 Checklist 1 Is input voltage normal 2 Is the UP DOWN louver motor properly connected with the connector CN61 2 T...

Страница 14: ... C1623Y is faulty IR LED CL 1L5EU is faulty Ò Ò sound heard from the indoor unit when ON OFF but ton on the remote control unit pushed Voltage of battery less than 2 5V Remote Control Unit LCD display status of REMOCON normal Voltage at PIN 30 of Remocon Micom change Voltage at collecter of Q601 or Q602 change Voltage at pin 26 of micom IC04 change INDOOR UNIT Micom IC04 is faulty N Y Y N N N N N ...

Страница 15: ...g put the 4 way valve off immediately in case of B and C room 4 The changeover of cooling to heating it is on after 170 seconds delay Put off the outdoor unit power and put it on again after 5 seconds Select the heating operation of A B room by the remote controller Normal Keep 4 way valve off Normal Defect of RY 76 RY 77 contact and coil Replace the Relay Defect of IC 06 IC 07 output Replace Defe...

Страница 16: ...g RY 73 4 RY 72 4 2 Comp B measuring RY 71 4 RY 72 4 3 Power input RY 72 3 RY 73 3 Apply the outdoor power and operate the indoor unit A B C in the cooling mode Normal comp A B off Keep Comp A B off Refer to the power measuring terminal Normal Defect of comp A B and running condenser Replace Defect of Ry 72 73 Comp B and Ry 71 comp A contact and coil Replace Defect of IC 06 output Replace Defect o...

Страница 17: ...16 4 Exploded Views and Parts List 4 1 Indoor Unit 1 1 2 3 4 6 2 14 17 19 11 10 13 9 1 9 5 6 7 12 8 1 6 1 15 16 18 ...

Страница 18: ...0 10618A GRILLE AIR INLET PANEL CENTER DISPLAY GUARD AIR FILTER COVER TERMINAL ASS Y FRONT PANEL ASS Y PCB DISPLAY ASS Y TRAY DRAIN ASS Y STEP MOTOR U D BLADE H ASS Y EVAP ASS Y EVAP SPACER EVAP HOLDER MOTOR ASS Y ASS Y TERMINAL BLOCK MOTOR FAN IN ASS Y C F FAN ASS Y BEARING ASS Y MAIN PCB ASS Y MAIN PCB THERMISTOR ASS Y CASE CONTROL BODY BUSH ASS Y BACK BODY HOLDER PIPE PLATE HANGER ABS PC PP HIP...

Страница 19: ...18 4 2 Outdoor Unit 4 2 1 UD26A1C2 1 1 1 7 14 4 3 2 11 18 8 2 8 2 12 5 9 9 1 9 3 10 10 1 10 3 13 13 1 13 5 8 8 3 6 6 1 6 2 16 16 1 17 1 17 17 1 16 1 15 15 1 15 5 12 12 1 12 7 5 5 1 19 ...

Страница 20: ...VER VALVE COVER CONTROL COVER VALVE ASS Y BASE OUT ASS Y VALVE VALVE PACKED 1 2 VALVE PACKED 1 4 BRACKET VALVE ASS Y CHECK V V A VALVE CHECK TUBE CAPI C TUBE CAPI H ASS Y CHECK V V B VALVE CHECK TUBE CAPI C TUBE CAPI H GUARD COND ASS Y CONTROL OUT CASE CONTROL OUT CASE PCB OUT C OIL TERMINAL BLOCK ASSÕY HEATER C OIL ASS Y PCB MAIN OUT ASS Y PARTITION INSUL PARTITION PARTITION COVER TOP ASS Y COMP ...

Страница 21: ...20 4 2 2 UD18A1C2 19 10 10 1 10 3 9 9 1 9 3 17 17 1 16 1 8 1 8 1 8 2 16 16 1 17 1 18 4 3 11 7 2 1 1 1 6 8 5 5 1 14 14 1 13 13 1 12 12 1 12 7 15 15 1 15 5 12 5 ...

Страница 22: ... CONTROL ASS Y BASE OUT ASS Y VALVE VALVE PACKED 3 8 VALVE PACKED 1 4 ASS Y CHECK V V A VALVE CHECK TUBE CAPI C TUBE CAPI H ASS Y CHECK V V B VALVE CHECK TUBE CAPI C TUBE CAPI H GUARD COND ASS Y CONTROL OUT CASE CONTROL OUT CASE PCB OUT C OIL TERMINAL BLOCK ASSÕY HEATER C OIL ASSÕY PCB MAIN OUT ASSÕYPARTITION INSUL PARTITION COVER TOP ASS Y COMP GROMMET ISOLATOR NUT WASHER NUT FLANGE COVER TERMINA...

Страница 23: ...A DB67 60063A 90 x 250 DB93 40179B DB61 40243A Description ASSÕY CODE CASE UP CASE LOW DOOR REMOCON COVER BATTERY FILTER REMOCON RUBBER REMOCON INLAY LCD INLAY REMOCON LABEL REMOCON LABEL DOOR SCREW TAP SPRING BATTERY SPRING BATTERY SPRING BATTERY PE BAG ASSÕY PCB REMOCON HOLDER REMOCON Specification ABS ABS ABS ABS PC SILICON PC PC ART 90 ART 90 PH M2 SUS 304 SUS 304 SUS 304 90 x 250 ABS QÕTY 1 1...

Страница 24: ...001058 DE32 10037A DB93 10560B Description CASE CONTROL ASS Y MAIN PCB Ò IC MCU THERMISTOR ASS Y TRANS POWER C FILM POWER RELAY FUSE ASS Y PCB DISPLAY Specification ABS 94 5V ASSÕY Ò MB89635R 466 103AT AC230V DC17V 300mA CFS 99N 450VAC 155K DI1U DC12V 250V 3 15A QÕTY AD26A1C13 AD18A1C09 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Remark 1 2 4 2 6 2 2 2 1 2 3 2 5 2 3 ...

Страница 25: ...ER PCB LOW SEAL DISPLAY UPP SEAL CASE DISPLAY Description DB41 10204B 0601 001333 0601 001059 0601 001060 0601 001196 DB32 50027A 2202 000780 2001 000515 2201 000283 0401 000005 DB39 20346A DB61 10191A DB63 10494A DB72 10233A DB72 10220F Specification FR 1 T1 6 W20 L170 LTL 30EHJ ORG GRN SY5511 YEL SM5511 GRN SO5511 ORG PNA4612M MD CA OA 50V 104Z RD 1 8TP 221 J YWLA200 09P CA OA 50V 102Z 1N4148 UL...

Страница 26: ...ling Max over load 61 64 61 64 80 67 115 75 Low temp 34 39 34 39 67 57 67 57 Standard 242 284 90 97 140 158 70 60 47 43 Heating Max over load 97 104 149 167 80 75 65 Deice 82 90 104 113 70 60 35 33 INDOOR UNIT OUTDOOR UNIT Capillary tube Capillary tube Heat exchanger Condenser 4Way valve 3Way valve 2Way valve Compressor B Compressor A Gas side Liquid side Cross fan Cross fan Propeller fan T2 T1 A ...

Страница 27: ...26 6 Wiring Diagrams 6 1 Indoor Unit AD26A1C13 AD18A1C09 ...

Страница 28: ...27 6 2 Outdoor Unit UD26A1C2 UD18A1C2 ...

Страница 29: ...29 ...

Страница 30: ...31 ...

Страница 31: ...ELECTRONICS ...

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