Samsung SLIM DUCT Series Service Manual Download Page 1

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SYSTEM AIR CONDITIONER

Model Code : AC009KNLDCH/AA AC009KXADCH/AA

AC012KNLDCH/AA AC012KXADCH/AA
AC018KNLDCH/AA AC018KXADCH/AA

INDOOR UNIT OUTDOOR UNIT

AIR CONDITIONER

CONTENTS

Refer to the service manual in the GSPN(see the rear cover) for the more information.

1. Precautions

2. Product Specifications

3. Disassembly and Reassembly

4. Troubleshooting

5. PCB Diagram and Parts List

6. Wiring Diagram

7. Reference Sheet

AC009KNLDCH
AC012KNLDCH
AC018KNLDCH

AC009KXADCH

AC012KXADCH

AC018KXADCH

SLIM DUCT SERIES

Summary of Contents for SLIM DUCT Series

Page 1: ...IR CONDITIONER CONTENTS Refer to the service manual in the GSPN see the rear cover for the more information 1 Precautions 2 Product Specifications 3 Disassembly and Reassembly 4 Troubleshooting 5 PCB...

Page 2: ...it 3 2 3 2 Outdoor Unit 3 8 4 Trouble shooting 4 1 4 1 Indoor Display Error and Check Method 4 1 4 2 Outdoor LED Error Display and Check Method 4 5 4 3 Setting Option Setup Method 4 7 4 4 Items to be...

Page 3: ...by an incorrect installation When installing the built in type air conditioner keep all electric cables such as the power cable and the connection cord in pipes ducts or cable channels to protect the...

Page 4: ...o ISO standard for energy efficiency 1 3 During operation Do not repair the air conditioner at your discretion It is recommended to contact a service center directly Never spill any kind of liquid on...

Page 5: ...LDC inverter technology it makes a room cool with highly energy saving and arises the efficiency of air conditioner Long Piping Length Height It can give the benefit to the installers and aries the re...

Page 6: ...utdoor Unit mm 790 x 548 x 285 790 x 548 x 285 Shipping Dimension WxHxD Indoor Unit mm 951 x 280 x 709 951 x 280 x 709 Outdoor Unit mm 926 x 640 x 384 926 x 640 x 384 Weight NetWeight Indoor Unit kg 1...

Page 7: ...on WxHxD Indoor Unit mm 900 x 199 x 600 Outdoor Unit mm 880 x 638 x 310 Shipping Dimension WxHxD Indoor Unit mm 1151 x 280 x 709 Outdoor Unit mm 1023 x 730 x 413 Weight NetWeight Indoor Unit kg 26 0 O...

Page 8: ...RUZIONI PER L USO MANUAL DE INSTRU ES MANUEL D UTILISATION GEBRAUCHSANWEISUNG Splut type Room Air Conditioner Aire acondicionado dom stico sistema Split Condizionatore d aria per ambienti ad unit Sepa...

Page 9: ...Samsung Electronics 3 1 3 Disassembly and Reassembly Necessary Tools Item Remark SCREW DRIVER MONKEY SPANNER...

Page 10: ...6 screws AC009 012KNLDCH 2 Disassemble 2 Cover Blower Uppers Unscrew 2 screws AC018KNLDCH Disassemble the Cover Blower Upper with pushing its hook 3 Disassemble the Cover Control Unscrew 2 screws AC00...

Page 11: ...Disassemble Motor Wires connected to the inside of PCB and connected to the Capacitor 5 Disassemble the band Motor for fixing the Moter Unscrew 2 screws 6 After disassembling the Motor and Blower for...

Page 12: ...2 Drain Pan 1 Disassemble the Cabinet Top Evap Unscrew 11 screws AC018KNLDCH Unscrew 5 screws AC009 012KNLDCH 2 Disassemble the Bracket Outlet Sub that fixes the Drain Pan equipped on the front of the...

Page 13: ...s the high low pressure Pipe Unscrew 2 screws 2 Disassemble the refrigerant temperature sensor Inlet air temperature sensor and EEV wire that connected to the inside of PCB 3 Disassemble the Support E...

Page 14: ...5 Disassemble the Evaporator form the set 4 Drain Pump 1 Disassemble the Cover that fixes the Drain Pump Unscrew 4 screws 2 Disassemble the Drain Pump and Flow switch wire that connected to the inside...

Page 15: ...Parts Procedure Remark 4 Control In 1 Disassemble all Control Wires connected to the inside of PCB 2 Unscrew the earth screw 3 Press the hook as picture shown disas semble the PCB 4 Disassemble the ca...

Page 16: ...Procedure Remark 1 common work 1 loosen 1 pcs screw of cover control and detach it 2 loosen 5 pcs screws on both right and left cabniet side edges and to detach the cover top 3 Loosen 7 screwsfixed t...

Page 17: ...ng Electronics 3 9 No Parts Procedure Remark common work 4 loosen 7 screws to disassemble the cabi right and detach it 5 loosen 2 screws to disassemble steel bar 6 loosen 3 screws to disassemble cabi...

Page 18: ...No Parts Procedure Remark 2 fan motor 1 loosen 1 screw as indication and detached the fan 2 loosen 4 pcs motor screws and disconnect the wire betwwen assy control out and motor 3 loosen 2 pcs bracket...

Page 19: ...screw from cover control 2 detach several connections from assy con trol out take out assy control out 4 Heat exchanger 1 Release the refrigerant at first 2 Looosen fixing screw on both side 3 Disaess...

Page 20: ...3 12 Samsung Electronics No Parts Procedure Remark 5 compressor 1 Disconnect the compressor lead wire 2 Disassembly the felt comp sound loosen the 3 bolts at the bottom of...

Page 21: ...edure Remark 1 common work You must turn off the Power before disassembly 1 Loosen 2 pcs screw of cover control 2 Loosen 8 pcs screw of the cabi top cover 3 Loosen 9 pcs screw of the cabi side right 4...

Page 22: ...ts Procedure Remark 2 Fan motor 1 Loosen the fan screw according the indication and detach the fab propeller 2 Disconnect the wire between assy control out and motor 3 Loosen 4 pcs motor screw 4 Loose...

Page 23: ...rk 3 Assy control out 1 Loosen 2 screws that connected with parti tion 2 Disconnect the wire between the control kit and the tube then get out the control out 2 Loosen 2 screws disassemble the Coil Ha...

Page 24: ...on both side 3 Disassemble the pipes in both inlet and outlet with welding torch 4 Detach the heat exchanger CAUTION When removing the compressor Heat Exchanger and Pipe purge the Coolant inside the C...

Page 25: ...ror of temperature sensor in the indoor unit Open Short X X X X Error of heat exchanger sensor in the indoor unit X X X Error of the outdoor temperature sensor Error of the condensor temperature senso...

Page 26: ...tion error between indoor units X X X 1 Error of electronic expansion valve close 2 Error of electronic expansion valve open 3 2 nd detection of high temperature cond 4 2 nd detection of high temperat...

Page 27: ...rimary Current Over Trip error Inverter DC PEAK error O C Inverter Compressor Rotation error Inverter Current Sensor error Inverter DC LINK Sensor error Inverter EEPROM Read Write Error Inverter Heats...

Page 28: ...WN_1 Protection Control COMP down due to Low PressureSensor Protection Control 1 MCU SOL Valve cooling heating opening 1st at the same time MCU SOL Valve cooling heating opening 1st at the same time O...

Page 29: ...r temperature sensor Short or Open 8 E251 Error on discharge temperature sensor of compressor 1 Short or Open 9 E231 Error on outdoor COND OUT sensor Short or Open 10 E320 Error on OLP sensor Short or...

Page 30: ...oling operation restricted at outdoor temperature below Tcool_low value default 0 C 36 E556 Error due to mismatching capacity of indoor and outdoor unit 37 E557 DPM remote controller option error 38 E...

Page 31: ...you don t press the t Setting indoor unit option code is only possible in Master wired remote controller You can only check the indoor unit option code in Slave wired remote controller t Setting indoo...

Page 32: ...n with remote controller option Set the each option separately since you cannot set the ADDRESS setting and indoor unit installation setting option at the same time You need to set twice when setting...

Page 33: ...button to set the installation option code in order Press button to go to the next page SGE1 SGE2 SGE3 SGE4 SGE5 SGE6 0 2 RESERVED Exterior temperature sensor Central control RESERVED SEG7 SEG8 SEG9...

Page 34: ...se of buzzer 2 1000 Hour 1 ON OFF Control 1 Operationon 1 Use 1 Non use of buzzer 6 2000 Hour 2 OFF Control 3 WINDOW ON OFF Control Option SEG19 SEG20 SEG21 SEG22 SEG23 Explanation PAGE control of a r...

Page 35: ...When it is out of input the appropriate option code t If you input the inappropriate option code error may occur or the air conditioner is out of order The option code must be inputted correctly by t...

Page 36: ...of 3 minutes when the compressor is reoperated The same phenomenon occurs when a power is on As a phenomenon that the compressor is reoperated after a delay of 3 minutes the indoor fan is adjusted au...

Page 37: ...Check Inner wiring of outdoor unit Abnormal Check outdoor unit terminal block voltage on L N for indoor unit 230Vac nominal Check cable and connection of wire between indoor and outdoor unit Abnormal...

Page 38: ...PCB Check and correct the wire or socket connection Check Fuses listed blow FUSE3 EMI PCB FUSE MAIN PCB No Is there miss connection of power and communication wire between indoor and outdoor Correct...

Page 39: ...case broken No Take off each Fan motor housing after 1 minutes from turning off the power Follow the check procedure of outdoor unit power supply error check No Is each resistance of FAN cable housin...

Page 40: ...outdoor unit Outdoor unit cover Fan front obstruction etc 7 Is there no ventilation obstruction at the surrounding of indoor unit Overload condition in heating mode 2 Troubleshooting procedure No Yes...

Page 41: ...mpressor in 3 minutes off Check the resistance value of 4 WAY valve coil Go to the next page 4 WAY valve main body error Attach the sensor correctly Over shortage of the refrigerant Connect the connec...

Page 42: ...ed correctly Dose the voltage of DC300V apply to the connector of outdoor fan during the operation of outdoor unit The over shortage of refrigerant Insufficient Capacity Load estimation error Connect...

Page 43: ...e resistance value of sensor connection pull_up correct 2 Troubleshooting procedure Is the sensor connector connected correctly in accordance with a color Is the temperature sensor connected correctly...

Page 44: ...or connected correctly in accordance with a color Is the temperature sensor connected correctly without separation Does the both terminal of sensor satisfy the resistance value in accordance with temp...

Page 45: ...r connected correctly in accordance with a color Is the temperature sensor connected correctly without separation Does the both terminal of sensor satisfy the resistance value in accordance with tempe...

Page 46: ...s the connector connected correctly Is the color of Fan wire matched correctly Remove the Fan lock Connect the connector Exchange the Fan Exchange the PCB Normal operation Exit Yes Yes Yes No No No No...

Page 47: ...e compressor wire connected to the compressor normally Yes Yes Exchange the compressor Reinstall and remove the obstruction Is the installation of outdoor unit good Reinstall and remove the obstructio...

Page 48: ...d communication cable wiring error 2 Troubleshooting procedure Yes Restart after power off Is the communication error occurred again Isn t the power cable and communication cable wiring error Exchange...

Page 49: ...re Yes Restart after power off Is the restart error occurred again Is the interphase resistance value of compressor ulv vlw wlu normal Is the connection cable for the compressor and power terminal nor...

Page 50: ...ure Yes Restart after power off Is the lock error occurred again Is the interphase resistance value of compressor ulv vlw wlu normal Is the connection cable for the compressor and power terminal norma...

Page 51: ...ch contact Yes No Exchange M C Check and reconnecting the AC power cable wire Is the AC Power cable connection to the outdoor unit terminal block good Check and reconnecting the reactor wire at the TA...

Page 52: ...er supplying circuit 1 Display PCB part LED lamps Switch Remocon module 1 INDOOR EMI PCB part Line filter Noise Capacitor and Varistor 3 The PCB is composed of the 3 part in the outdoor unit 1 EMI PCB...

Page 53: ...B 1 Is RED LED ON 2 Is GREEN LED Blinking once a second 3 Is LEDs displaying error code pattern t 1 QPXFS USPVCMF t CBE DPNNVOJDBUJPO CFUXFFO JOEPPS BOE outdoor unit t FSSPS EFUFDUJPO 5 Check LED disp...

Page 54: ...or Short Outdoor Unit Discharge Temperature Sensor Measure sensor resistance with a multimeter Normal At the normal temperature 563k 157k 0 C 30 C see 12 2 7 Abnormal 0 Open or Short Outdoor Unit BLDC...

Page 55: ...scharge SMW250 02 YEL Indoor Fan TAP YW396 09AV WHT Temperature Sensor SMW250 02 YEL Ventilator YW396 03AV BLK Wired Remote Controller Power YW396 02 WHT Drain Pump YW396 03AV YEL External Control S W...

Page 56: ...YW396 06V WHT 5 COMM YW396 02V RED 6 SUB PBA POWER SMW200 05P BLK 7 EEV1 SMW250 05 RED 8 COMP DBT061 3P WHT 9 SMPS SMW250 03 BLU 10 EEPROM B7P MQ WHT 11 TEMP SENSOR SMW200 08P WHT 12 MAIN DOWNLOAD YDW...

Page 57: ...4 TEMP SENSOR SMW200 08P WHT 5 DRED SMW250 05 WHT 6 SUB PBA SMW200 10P WHT 7 SUB PBA SMW200 10P BLK 8 EEV1 SMW250 05 RED 9 SMPS SMW250 03 BLU 10 EEPROM B7P MQ WHT 11 MAIN DOWNLOAD YDW200 20 BLK 12 BL...

Page 58: ...5 4 Samsung Electronics...

Page 59: ...Samsung Electronics 6 1 This Document can not be used without Samsung s authorization 6 Wiring Diagram 6 1 Indoor Unit AC009KNLDCH AC012KNLDCH AC018KNLDCH...

Page 60: ...6 2 Samsung Electronics This Document can not be used without Samsung s authorization 6 2 Indoor Unit AC009KXADCH AC012KXADCH AC018KXADCH...

Page 61: ...d sent to the evaporator COMPRESSOR Low temperature and low pressure coolant is compressed and sent to the cycling system EVAPORATOR Liquid coolant sucked in through the capillary tubes cools down the...

Page 62: ...E 220 240V 50Hz F F 208 230V 60Hz 3 G G 380 415V 50Hz 3 H H 380V 60Hz 3 J J 460V 60Hz 3 K K 220 240V 50 60Hz 1 M M 127V 50Hz N N 380 415V 50 60Hz 3 Year E 2012 F 2013 G 2014 H 2015 J 2016 Buyer Name...

Page 63: ...Samsung Electronics 7 3...

Page 64: ...ual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law Samsung Electronics Co Oct 2015 Printed in China Code...

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