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.
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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 ........................
>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...
◆ 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...
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...
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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...
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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...
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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...
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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...
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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...
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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
(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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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, 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...
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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...
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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...
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#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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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...
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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...
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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...
6. Wiring Diagram 6-1 Indoor Unit ■ AC009KNLDCH / AC012KNLDCH / AC018KNLDCH This Document can not be used without Samsung’s authorization. Samsung Electronics...
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6-2 Indoor Unit ■ AC009KXADCH / AC012KXADCH / AC018KXADCH This Document can not be used without Samsung’s authorization. Samsung Electronics...
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...
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