Samsung AS12A2VC Service Manual Download Page 1

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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

AS12A2VC
AS09A2VA
AS07A2VA

OUTDOOR UNIT

US12A2VC
US09A2VA
US07A2VA

E DB68-00040A(3)

cover 5/14/01 6:58 PM Page 1

Summary of Contents for AS12A2VC

Page 1: ...embly 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 AS12A2VC AS09A2VA AS...

Page 2: ...ve and open the 3 way valve again 5 Check the pressure indicated by the pressure gauge low pressure side Standard pressure is should be 64 78kg cm2 in a reqular high operation mode 6 Open the refriger...

Page 3: ...entering 6 Make sure you do not bend the connection pipes in the middle and store together with the cables 7 Move the indoor and outdoor units to a new locatioon 8 Remove the mounting plate for the in...

Page 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 termin...

Page 5: ...e all the connector of PCB upper side out 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 1 Do 1...

Page 6: ...d Cross Fan 1 Do 1 2 3 4 above 2 Loosen the fixing three screws and separate the motor holder 3 Loosen the fixing screw of fan motor By use of M3 wrench 4 Separate the fan motor from the fan 5 Separat...

Page 7: ...rom the terminal block 3 Loosen three fixing screws and separate the upper cabinet 4 Loosen the two fixing screws of Ass y E part 5 Loosen seven fixing screws and separate the side cabinet 1 Do 1 abov...

Page 8: ...en three fixing screws of left and right side 3 Disassemble the inlet and outlet pipe by weld ing 4 Separate the heat exchanger 1 Do 1 above 2 Open the terminal cover of compressor and unscrew the con...

Page 9: ...oor unit lights up and the air condi tioner does not operate 6 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 LE...

Page 10: ...tage of 63 indoor fan of the micom normal Is voltage at 32 terminal of the Micom normal 0VDC Is voltage at 64 terminal of the Micom normal 5VDC Is the rating voltage 10 range applied to the primary si...

Page 11: ...gging out the power cord should be reconnected within five seconds Does the operating lamp Green blink Does the Solid State Relay SS71 work properly Is the supply voltage of the fan motor sufficient T...

Page 12: ...connected within five seconds Does the operating lamp blink YES YES NO NO NO 1 YES 3 2 NO YES 1 NO 2 NO Outdoor unit is out of order Power relay is out of order Power relay should be replaced PCB shou...

Page 13: ...ure Remove power cord and plug in again in approx 5 seconds Is operating lamp blinking Does operation start when swing button of the remote control unit pushed Voltage at pin 33 36 of micom ICO4 chang...

Page 14: ...is faulty Q601 C4375Y or Q602 C1623Y is faulty IR LED CL 1L5EU is faulty sound heard from the indoor unit when ON OFF button on the remote control unit pushed Voltage of battery less than 2 5V Remote...

Page 15: ...14 4 Exploded Views and Parts List 4 1 Indoor Unit 1 1 2 4 5 7 2 6 1 1 5 1 9 2 1 1 2 1 1 1 4 1 6 1 0 6 2 6 7 8 1 3 9 1 2 2 7 1 3 1 7 1 8 2 0 22...

Page 16: ...ASS Y FRONT PANEL ASS Y PCB DISPLAY CASE CENTER PCB COVER DISPLAY ASS Y TRAY DRAIN ASS Y STEP MOTOR U D BLADE H ASS Y EVAP SPACER EVAP ASS Y HOLDER MOTOR MOTOR FAN IN ASS Y C F FAN ASS Y BEARING ASS Y...

Page 17: ...16 4 2 Outdoor Unit 1 3 6 7 8 2 4 5 1 0 1 6 1 9 1 8 1 7 2 1 2 3 2 2 2 4 9 1 5 1 3 1 4 1 2 8 1 8 2 8 3 8 5 8 4 1 1 7 1 2 0 25 25 1 26 27...

Page 18: ...M PU SECC P ASS Y ASS Y AWG 14 1 4 3 8 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 3 3 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1...

Page 19: ...0560A DB32 10008D Description CASE CONTROL Ass y main PCB Ass y main PCB Ass y main PCB Trans power Trans Power C film C film Power relay Fuse Fuse Ass y display and Module PCB Thermistor EVAP Specifi...

Page 20: ...k point Cross fan Heat exchanger Condenser Propeller fan Compressor T1 T2 Cooling Refrigerating cycle temperature and pressure STD Pressure Piping Temp F Use Temp Condition F Operating Condition psi T...

Page 21: ...20 6 Wiring Diagrams 6 1 Indoor Unit AS12A2VC AS09A2VA AS07A2VA...

Page 22: ...21 6 2 Outdoor Unit...

Page 23: ...23...

Page 24: ...25...

Page 25: ...ELECTRONICS...

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