Samsung SLIM DUCT Series Service Manual
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Samsung SLIM DUCT Series Service Manual

System, indoor/outdoor units
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AIR CONDITIONER
AC009KNLDCH
AC012KNLDCH
AC018KNLDCH
AC009KXADCH
AC012KXADCH
Refer to the service manual in the GSPN(see the rear cover) for the more information.
SYSTEM AIR CONDITIONER
Model Code : AC009KNLDCH/AA
AC018KXADCH
SLIM DUCT SERIES
INDOOR UNIT
AC012KNLDCH/AA
AC018KNLDCH/AA
CONTENTS
OUTDOOR UNIT
AC009KXADCH/AA
AC012KXADCH/AA
AC018KXADCH/AA

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Summary of Contents for Samsung SLIM DUCT Series

  • Page 1: Table Of Contents

    SYSTEM AIR CONDITIONER SLIM DUCT SERIES INDOOR UNIT OUTDOOR UNIT Model Code : AC009KNLDCH/AA AC009KXADCH/AA AC012KNLDCH/AA AC012KXADCH/AA AC018KNLDCH/AA AC018KXADCH/AA AIR CONDITIONER CONTENTS 1. Precautions 2. Product Specifications 3. Disassembly and Reassembly AC009KNLDCH 4. Troubleshooting AC012KNLDCH AC018KNLDCH 5. PCB Diagram and Parts List 6.
  • Page 2 Contents 11. Precautions ............................1-1 Installing the air conditioner ......................1-2 Power supply and circuit breaker ....................1-3 During operation ..........................1-4 Disposing of the unit ........................1-5 Others ..............................12. Product Specifications ....................... 2-1 The Feature of Product ........................2-2 Product Specifications ........................

  • Page 3: Precautions

    >3mm. ◆ Do not extend an electric cord to the air conditioner. ◆ The air conditioner must be plugged in after you complete the installation. No Tapping and No Extension Cords Samsung Electronics...

  • Page 4: During Operation

    ◆ Young children or infirm persons should be always supervised when they use the air conditioner. ◆ Max current is measured according to IEC standard for safety. ◆ Current is measured according to ISO standard for energy efficiency. Samsung Electronics...

  • Page 5: Product Specifications

    It can give the benefit to the installers and aries the reliability of the air conditioner. ■   Long Ambient Operation(In Low Temperature) It can arise the reliability and the capacity of the air conditioner, especially operated in low temperature. ■   Eco-friendly Product(Lead-Free, RoHS, WEEE) Samsung Electronics...

  • Page 6: Product Specifications

    1.4 MPa 1.4 MPa Refrigerant Type R-410A R-410A Factory Charging [g] 1050 1050 Additional Refrigerant (for every 1m) [g] Basic Piping Length [m] Max. Piping Length [m] Max. Level Difference [m] 01C06C-1C6933-271A21-370000 01C06C-1C7968-272328-370000 Option Code 020000-120000-200000-300000 020000-120000-200000-300000 030000-100000-200000-300000 030000-100000-200000-300000 Samsung Electronics...
  • Page 7 High Pressure 4.1 MPa Piping Low Pressure 1.4 MPa Refrigerant Type R-410A Factory Charging [g] 1300 Additional Refrigerant (for every 1m) [g] Basic Piping Length [m] Max. Piping Length [m] Max. Level Difference [m] 01C06C-1C7944-27343C-370000 Option Code 020000-120000-200000-300000 030000-100000-200000-300000 Samsung Electronics...
  • Page 8 Q'TY Remark Manual User & install DB68-05707A Insulation cover DB62-04318S Insu drain hose DB62-11028A DB62-11028E Insu hose C/D DB62-11028D Ass'y Holder Drain Pipe DB90-06701A Hose Drain DB67-01191A DB73-20134A RUBBER LEG Outdoor unit DRAIN PLUG DB67-20011A INSTALLATION MANUAL DB68-05138A Samsung Electronics...

  • Page 9: Disassembly And Reassembly

    3. Disassembly and Reassembly ■ Necessary Tools Item Remark +SCREW DRIVER MONKEY SPANNER Samsung Electronics...

  • Page 10: Indoor Unit

    - Unscrew 8 screws (AC018KNLDCH) Blower - Unscrew 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 Samsung Electronics...
  • Page 11 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 the set, disassemble the Blower by use of 3mm wrench. Samsung Electronics...
  • Page 12 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 set. 3) Disassemble the Drain Cushion from the set. Samsung Electronics...
  • Page 13 Inlet air temperature sensor, and EEV wire that connected to the inside of PCB. 3) Disassemble the Support Evap. LF that fixes the Evaporator. - Unscrew 2 screws 4) Disassemble the Support Evap RH. - Unscrew 2 screws Samsung Electronics...
  • Page 14 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 of PCB. 3) Disassemble the Drain Pump form the set Samsung Electronics...
  • Page 15 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 case control. - Unscrew 2 screws Samsung Electronics...

  • Page 16: Outdoor Unit

    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 to disassemble cabi-front , and detach it. Samsung Electronics...
  • Page 17 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-left. Samsung Electronics...
  • Page 18 Remark 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-motor screw and detach it. 3-10 Samsung Electronics...
  • Page 19 Heat exchanger 1) Release the refrigerant at first 2) Looosen fixing screw on both side. 3) Disaessembly the pipes in both inlet and outlet with welding torch. 4) detach the heat exchanger. Samsung Electronics 3-11...
  • Page 20 Parts Procedure Remark compressor 1) Disconnect the compressor lead wire . 2) Disassembly the felt comp sound. loosen the 3 bolts at the bottom of 3-12 Samsung Electronics...
  • Page 21 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) Loosen 7 pcs screw of the cabi side front. Samsung Electronics 3-13...
  • Page 22 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) Loosen 2 pcs screw of bracket motor. 3-14 Samsung Electronics...
  • Page 23 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 Harmonic. 2) Loosen the screw of the cover terminal. Samsung Electronics 3-15...
  • Page 24 4) Detach the heat exchanger. When removing the compressor, CAUTION Heat Exchanger, and Pipe, purge the Coolant inside the Compressor complete- ly and remove the pipe with a welding flame. Compressor 1)Loosen the 3 bolts at the bottom of com- pressor. 3-16 Samsung Electronics...

  • Page 25: Troubleshooting

    (Communication error for more than 2 minutes) ● Flickering X Off ◆ If you turn off the air conditioner when the LED is flickering, the LED is also turned off. Samsung Electronics...
  • Page 26 Detection of the float switch Error of setting option switches for optional accessories Error of EEPROM or OPTION SETTING ● Flickering X Off ◆ If you turn off the air conditioner when the LED is flickering, the LED is also turned off. Samsung Electronics...
  • Page 27 Open error of EEV in indoor unit(2nd) Close error of EEV in indoor unit(2nd) Close error of electoronic expansion valve in indoor unit(2nd) Breakaway of Indoor unit Evaporator_out Sensor COND_MID or COND OUT Sensor of Outdoor Unit breakaway Error Samsung Electronics...
  • Page 28 System Down (All Indoor unit Short) due to Communication Error Error due to repeated communication address Error on float switch (2nd detection) Outdoor unit EEPROM error EEPROM OPTION SETTING ERROR Error on thermal fuse of indoor unit (Open) Samsung Electronics...
  • Page 29 E461 Error due to operation failure of inverter compressor Error due to abnormal rotation of the compressor or unconnected wire of E467 compressor E469 Error on DC-Link voltage sensor (Short or Open) E488 AC Input Voltage Sensor Error Samsung Electronics...
  • Page 30 Error on EVA IN sensor of indoor unit (Short or Open) E123 Error on EVA OUT sensor of indoor unit (Short or Open) E154 Indoor fan error E153 Error on float switch (2nd detection) E508 Smart install is not installed Samsung Electronics...
  • Page 31 You can only check the indoor unit option code in Slave wired remote controller. Setting indoor unit option code is possible when one indoor unit is connected. If more than 2 indoor units are connected, you can only check the Master indoor unit option code. Samsung Electronics...
  • Page 32 Press the button anytime during setup to exit without setting. NOTE Address will not be applied if you don't press button. Setting Main/RMC Address of an Indoor unit is available only with a master wired remote controller. Samsung Electronics...
  • Page 33 Drain pump RESERVED RESERVED RESERVED Master / Slave SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 External control Number of hours External control Virus doctor Buzzer output using filter SEG19 SEG20 SEG21 Individual control Heating setting of a remote compensation controller Samsung Electronics...
  • Page 34 Option code will not be applied if you don't press button. Setting Installation option code is available only with a master wired remote controller. Setting Installation option code is available when there is one on one connection between a wired remote controller and an indoor unit. 4-10 Samsung Electronics...
  • Page 35 , input the appropriate option code. 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 the installation specialist or service agent. Samsung Electronics 4-11...
  • Page 36 The compressor operates in a reverse cycle to remove Indoor fan and outdoor fan stop operation intermittently exterior ice in a HEAT mode, and indoor fan and outdoor in a HEAT mode. fan do not operate intermittently for within 20% of the total heater operation 4-12 Samsung Electronics...
  • Page 37 Wrong setting Check DIP SW in the Set DIP SW correctly wired remote controller. Correct Is there any error display on Check each item according to error code list the wired remote controller Check the setting temperature Samsung Electronics 4-13...
  • Page 38 #1 and #3 Are wire and socket connected correctly? Error 469 display Error 469 display CN05,06,07 TAB terminal(EMI PCB), Check and correct the wiring (Table No.28) (Table No.19) CN20(INVERTER PCB) Check the M/C 4-14 Samsung Electronics...
  • Page 39 Is the Pin voltage #6 - #3 of CN40 and 41 changed high(4-5V) and low(0-1V) in case of Exchange INVERTER PCB making manual rotation slowly? Is the Pin voltage #7 - #3 of CN40 and Exchange the FAN motor 41 low(0-1V) in normal rotation? Exchange INVERTER PCB Samsung Electronics 4-15...
  • Page 40 Does the compressor rotate normally? Exchange the compressor Are the service valves full opened? Open valve screw to the end. Is AC power voltage normal during the Check AC power source compressor in operation? Exchange INVERTER PCB 4-16 Samsung Electronics...
  • Page 41 4-WAY valve coil error of 4-WAY valve coil. Dose the voltage of AC220V Exchange apply to the connector of 4-WAY the outdoor PCB. valve coil during the operation? Go to the next page 4-WAY valve main body error Samsung Electronics 4-17...
  • Page 42 Connect the connector. correctly? Check the resistance value Outdoor fan error of outdoor fan. Dose the voltage of DC300V apply to the connector of outdoor Check the motor wire. fan during the operation of outdoor unit? Outdoor PCB error 4-18 Samsung Electronics...
  • Page 43 Exchange the sensor. (Refer to the R/T TABLE) Is the resistance value of sensor connection pull_up 18K? Exchange the PCB. Exchange the PCB. Normal operation Exit 400.0 350.0 300.0 250.0 200.0 150.0 100.0 50.0 Samsung Electronics 4-19...
  • Page 44 Exchange the sensor. (Refer to the R/T TABLE) Is the resistance value of sensor connection pull_up 24K? Exchange the PCB. Exchange the PCB. Normal operation Exit 600.0 500.0 400.0 300.0 200.0 100.0 4-20 Samsung Electronics...
  • Page 45 Exchange the sensor. (Refer to the R/T TABLE) Is the resistance value of sensor connection pull_up 18.2K? Exchange the PCB. Exchange the PCB. Normal operation Exit 400.0 350.0 300.0 250.0 200.0 150.0 100.0 50.0 Samsung Electronics 4-21...
  • Page 46 1) Is the connection of R, S, T power wire normal? 2) Are Relay RY21 and R200 on the INVERTER PCB mounted normally? 2. Troubleshooting procedure Are connection of the wire from INVERTER PBA to Check and correct the wire connection EMI PBA normal? Exchange INVERTER PCB 4-22 Samsung Electronics...
  • Page 47 Is insuration resistance between each Exchange the compressor compressor terminal and body normal? Does the compressor rotate normally? Exchange the compressor Did AC power voltage interruption happen Check AC power source during the compressor in operation? Exchange INVERTER PCB Samsung Electronics 4-23...
  • Page 48 Is the communication error Terminate the service. occurred again? Isn't the power cable and Correct the wrong wiring. communication cable wiring error? Is the connection of Correct the connection of communication cable normal? communication cable. Exchange the outdoor unit PCB. 4-24 Samsung Electronics...
  • Page 49 Exchange the compressor. compressor(u v, v w, w u) normal? Is the compressor body and Exchange the compressor. interphase resistance insulated? Is the connection cable for the Correct the cable connection. compressor and power terminal normal? Exchange the PCB. Samsung Electronics 4-25...
  • Page 50 Exchange the compressor. compressor(u v, v w, w u) normal? Is the compressor body and Exchange the compressor. interphase resistance insulated? Is the connection cable for the Correct the cable connection. compressor and power terminal normal? Exchange the PCB. 4-26 Samsung Electronics...
  • Page 51 Is each contact resistance normal? Exchange M/C (less than 0.1ohm) Does the error reappear frequently Exchange INVERTER PCB The cause of this error may be power source trouble as like power interruption. Check the power source. Samsung Electronics 4-27...
  • Page 52 FAN operation checking 1) Is the FAN motor running? Controller trouble inside of the fan motor Press the ON/OFF button. 2) Is the connection of CN73 normal? connector trouble of CN73 1. FAN Speed[HIGH] 2. FAN mode 4-28 Samsung Electronics...
  • Page 53 D101 upper side pin of '~' marking pins INVERTER PCB 2) Is DC Link voltage 450-510V? Check IGBT module pins marking voltage near C701 Check BLDC fan 1) See 4--5-9 The Outdoor unit Fan error(Fault Diagnosis) Samsung Electronics 4-29...
  • Page 54 BLUE - BLACK 10KΩ ~ 50KΩ pulse ORANGE - BLACK 10KΩ ~ 50KΩ reverse Abnormal 0Ω...Open or Short Outdoor Unit 4way Valve Solenoid Measure resistance with a multimeter Normal At the normal temperature(10˚C~30˚C) 1.6KΩ±15% Abnormal ∞,0Ω...Open or Short 4-30 Samsung Electronics...

  • Page 55: Pcb Diagram And Parts List

    Display : SMW200-11(WHT) : SMW200-11(WHT) Power : YW396-03AV(WHT) External Control(Display Part) : SMW250-04(RED) Transformer Out : YW396-03AV(WHT) HALL IC : SMW250-03(BLU) Main Power In : YW396-03AV(BLU) MICOM Download : SMW200-10(WHT) Power : YW396-03AV(BLU) Indoor/Outdoor Communication : YW396-02(RED) Transformer In : SMW250-03(RED) Samsung Electronics...
  • Page 56 SUB PBA POWER:SMW200-05P BLK EEV1:SMW250-05 RED COMP:DBT061-3P WHT SMPS: SMW250-03 BLU EEPROM:B7P-MQ WHT TEMP SENSOR: SMW200-08P WHT MAIN DOWNLOAD:YDW200-20 BLK SUB PBA: SMW200-10P BLK DRED:SMW250-05 WHT INV DOWNDOWN: YDAW200-20TR BLK SUB PBA: SMW200-10P WHT ENABLE CGND: SMW250-03 RED Samsung Electronics...
  • Page 57 4WAY:YW396-03AV WHT COMM:YW396-02V RED TEMP SENSOR: SMW200-08P WHT DRED:SMW250-05 WHT SUB PBA: SMW200-10P WHT SUB PBA: SMW200-10P BLK EEV1:SMW250-05 RED SMPS: SMW250-03 BLU EEPROM:B7P-MQ WHT MAIN DOWNLOAD:YDW200-20 BLK BLDC FAN:YAW396-06V WHT ENABLE CGND: SMW250-03 RED INV DOWNDOWN: YDAW200-20TR BLK Samsung Electronics...
  • Page 58 Samsung Electronics...

  • Page 59: Wiring Diagram

    6. Wiring Diagram 6-1 Indoor Unit ■ AC009KNLDCH / AC012KNLDCH / AC018KNLDCH This Document can not be used without Samsung’s authorization. Samsung Electronics...
  • Page 60 6-2 Indoor Unit ■ AC009KXADCH / AC012KXADCH / AC018KXADCH This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 61: Reference Sheet

    You can open the valve by turning the need valve counterclockwise using hex wrench, and it is used for vacuum, gas purging, coolant injection, coolant purging, and indoor-outdoor unit connection. ■ ACCUMULATOR Accumulator prevents the flow of liquid-state coolant into the compressor. (Liquid-state coolant flowing into the com- pressor will overload the compressor.) Samsung Electronics...
  • Page 62 HEAT PUMP R410a (Slim) HEAT RECOVERY RAC-Vivace COOLING ONLY Feature HEAT PUMP FLAGSHIP Cooling only R134A PREMIUM Heat Pump DELUXE <- Basic STANDARD ※ "/" can be removed from the buyer card if there are not enough digits. Samsung Electronics...
  • Page 63 Samsung Electronics...
  • Page 64 © Samsung Electronics Co., Oct. 2015. This Service Manual is a property of Samsung Electronics Co., Ltd. Printed in China. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. Code No. DB68-00000A(1)

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