Samsung AC052MN4DKH Service Manual
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Samsung AC052MN4DKH Service Manual

System air conditioner 4 way cassette series
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AIR CONDITIONER
SYSTEM AIR CONDITIONER
4 WAY CASSETTE SERIES
INDOOR UNIT
Model :
AC052MN4DKH
AC071MN4DKH
AC090MN4DKH
AC100MN4DKH
AC120MN4DKH
AC140MN4DKH
CONTENTS
1. Precautions
2. Product Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram
6. Wiring Diagram
7. Reference Sheet
OUTDOOR UNIT
AC090MXADKH
AC100MXAD H
AC120MXAD H
AC140MXAD H

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Summary of Contents for Samsung AC052MN4DKH

  • Page 1 SYSTEM AIR CONDITIONER 4 WAY CASSETTE SERIES INDOOR UNIT OUTDOOR UNIT Model : AC052MN4DKH AC090MXADKH AC071MN4DKH AC100MXAD H AC090MN4DKH AC120MXAD H AC100MN4DKH AC140MXAD H AC120MN4DKH AC140MN4DKH AIR CONDITIONER CONTENTS 1. Precautions 2. Product Specifications 3. Disassembly and Reassembly 4. Troubleshooting 5.

  • Page 2: Table Of Contents

    4-3-6 EEPROM circuit failure ........................... 4-22 4-3-7 Thermal Fuse Open Error ........................4-23 4-3-8 When the outdoor unit power is not ON - Initial Diagnosis : 3-phase products ... 4-24 4-3-9 Indoor/outdoor communication error (1min.) (Error Code : E202) ........4-28 Samsung Electronics...
  • Page 3 6. Wiring Diagram ....................6-1 6-1 Indoor Unit ................................6-2 Outdoor Unit ................................. 7. Reference Sheet ....................7-1 7-1 Index for Model Name ............................7-1-1 Indoor Unit ..............................7-1-2 Outdoor Unit ............................. 7-1-3 Panel ................................7-2 Refrigerating Cycle Diagram .......................... Samsung Electronics...

  • Page 4: Precautions

    Check whether the installation location is at least two meters away from other electronic products such as TV, video, or audio. – Otherwise, the video quality might be degraded or noise might be generated. Do not let end users repair the products themselves. – Unauthorized disassembly might cause electric shock or fire. Samsung Electronics...

  • Page 5: Precautions Related To Product Safety

    – Release the high pressure and low pressure valve caps. – Close the high pressure valve completely using an L-wrench – After about two minutes, close the low pressure valve completely. – Stop running the air conditioner. – Separate the connecting pipe. Samsung Electronics...

  • Page 6: Product Specifications

    The equipment operates with minimum power to maintain the 1°C Setting temperature optimum temperature and it always maintains a pleasant room -1°C -2°C temperature in small temperature steps of 0.1°C that you may not be able to sense. Smart inverter air conditioner General air conditioner Samsung Electronics...
  • Page 7 PCB option so that the unit can be installed on a ceiling with a height of 3.5 meters. [When installing on a ceiling [When installing on a ceiling of 3m or higher] of 3m or lower] Samsung Electronics...
  • Page 8 - Capable of realizing optimal air current in accordance to customer preference and diverse structures located in different directions through individual control of each of the 4 blades. - Individual control can be realized through both cable and wireless remote control. Samsung Electronics...

  • Page 9: Product Specifications

    Product Specifications Product Specifications 2-2 Product Specifications Development Model AC052MN4DKH AC052MN4DKH Item AC090MN4DKH AC100MN4DKH AC100MN4DKH AC120MN4DKH AC120MN4DKH AC071MN4DKH AC071MN4DKH AC090MXADKH AC100MXADKH AC100MXADNH AC120MXADKH AC120MXADNH AC140MN4DKH AC140MN4DKH AC140MXADKH AC140MXADNH Indoor Unit Design Outdoor Unit Remote Controller Cooling[w] 13.4 13.4 Capacity Heating [W] 11.2...

  • Page 10: Specifications Of Optional Items

    Remark Ass'y drain hose DB94-02719B Cable-tie DB65-00191A Seal-drain ass'y DB62-05810A Indoor Unit Seal-drain ass'y DB62-05810F Seal-drain ass'y DB62-05810G CARD WARRNATY DB68-02596B Rubber Leg DB73-20134A Outdoor Unit ASSY-INSTALLATION DB68-05330A MANUAL BOLT-FLANGE 6011-003975 ASSY-INSTALLATION DB68-03683A Panel MANUAL CARD WARRNATY DB68-01675A Samsung Electronics...
  • Page 11 Product Specifications Accessories (cont.) ■ Item Descriptions Q'TY Remark Wireless remote controller DB93-15882F Batteries for remote controller 4301-000121 (specification: AAA type) Remote controller holder DB61-06087A Optional M4×16 screw 6002-000581 User’s manual DB68-05423A Samsung Electronics...
  • Page 12 Product Specifications Accessories (cont.) ■ Item Descriptions Q'TY Remark Wired remote controller DB93-11251F Cable tie DB65-10088B Cable clamp DB65-10074E Optional M4×16 Screw 6002-000474 User’s manual DB68-03732A Installation guide DB68-03716A Samsung Electronics...
  • Page 13 Product Specifications Accessories (cont.) ■ Item Descriptions Q'TY Remark Central controller DB93-03425Q Cable tie DB65-10088B Cable clamp DB65-10074E Optional M4 X 16 Screw 6002-000474 User’s manual DB68-03736A Installation guide DB68-03721A Samsung Electronics...

  • Page 14: Filter Specifications

    Product Specifications 2-3-2 Filter specifications Item Descriptions Remark Basic/ Dust filter DB63-03158A Water wash 2-10 Samsung Electronics...

  • Page 15: Disassembly And Reassembly

    Disassembly and Reassembly 3. Disassembly and Reassembly Item Remarks +SCREW DRIVER Adjustable Wrench (8mm, 10mm, 13mm) M6, M8 Hex Wrench Samsung Electronics...

  • Page 16: Indoor Unit

    Procedure Remark Panel 1) Push the handles on both sides of the Samsung logo towards the product’s interior to open the Grille. 2) Push up the green knob in the Open direction, and detach the white link from the panel. Detach the safety clip.
  • Page 17 1) Disconnect the Connector Wire that is connected to the indoor unit’s PBA from the PBA. 2) Unscrew the 2 fixed screws on both sides of the Control Box, and disassemble the Control Box from the indoor unit. (Use +Screw Driver) Samsung Electronics...
  • Page 18 2) Push the Bell-Mouth in the direction opposite to where it’s installed on the Control-Box to remove it. Drain Pan 1) Unscrew the screws on the 4 corners of the indoor unit. (Use +Screw Driver) 2) Remove the Drain Pan from the indoor unit. Samsung Electronics...
  • Page 19 Drain-Hose out from the indoor unit to disassemble the transparent Drain-Hose fixed on the side of the indoor unit. (Use +Screw Driver) 1) Use your hand to remove the temperature Evap. sensor attached to the Evap Pipe along with Temperature the fixing clip. Sensor Samsung Electronics...
  • Page 20 1) Remove the screws of the 2 Steel Holder Evaps that are used to fix the Heat Exchanger, and then remove it. (Use +Screw Driver) 2) Remove the 2 fixing screws of the Partition Evap at the Heat Exchanger’s In/Out Pipe. (Use +Screw Driver) Samsung Electronics...
  • Page 21 Disassembly and Reassembly Parts Procedure Remark 3) Remove the screw of the Cover Pipe that is used to fix the In/Out Pipe. Remove the In/Out Pipe. (Use +Screw Driver) 4) Remove the Heat Exchanger from the indoor unit’s cabinet. Samsung Electronics...
  • Page 22 Cabinet Front RH. (Use +Screw Driver) Cabi Top 1) Unscrew and remove 9 screws on each side of the Cabinet-Top. (Use +Screw Driver) Cabi Install Front 1) Unscrew and remove 1 screw in the Cabinet-Install Front. (Use +Screw Driver) Samsung Electronics...
  • Page 23 2) Unscrew and remove 4 screws in the Guard Cond. (Use +Screw Driver) Cabi Back RH 1) Pull the sensor from Cabi Back RH. 2) Unscrew and remove 4 screws on each side of the Cabinet Back RH. (Use +Screw Driver) Samsung Electronics...
  • Page 24 Disassembly and Reassembly Parts Procedure Remark Cabi Install Back 1) Unscrew and remove 1 screw in the Cabinet-Install Back. (Use +Screw Driver) Cabi Front LF 1) Unscrew and remove 10 screws in the Cabinet-Front LF. (Use +Screw Driver) 3-10 Samsung Electronics...
  • Page 25 Disassembly and Reassembly Parts Procedure Remark 1) Turn 2 mounting nuts as shown in the picture and remove it. (Use Adjustable Wrench) Samsung Electronics 3-11...
  • Page 26 1) Separate the Fan Propeller. 2) Unscrew and remove the 8 Motor mounting screws. (Use +Screw Driver) 3) Disconnect the Motor wire From Ass'y Control Out. Bracket Motor 1) Unscrew and remove 2 mounting screws in Bracket Motor. (Use +Screw Driver) 3-12 Samsung Electronics...
  • Page 27 Disassembly and Reassembly Parts Procedure Remark Control Out 1) Disconnect 4 Connecters From Ass'y Control Out. 2) Unscrew and remove 1 mounting screw in Control Out. (Use +Screw Driver) 3) Separate Ass'y Control Out. Samsung Electronics 3-13...
  • Page 28 Service Valve. (Use +Screw Driver) 4) Separate the pipe from the Entrance/Exit using a welder. When removing the compressor, Heat Exchanger, and Pipe, purge the Coolant inside the Compressor completely and remove the pipe with a welding flame. 3-14 Samsung Electronics...
  • Page 29 1) Unscrew and remove 2 mounting screws in Service Valve. (Use +Screw Driver) 2) Separate the pipe from the Entrance/Exit using a welder. Compressor 1) Unscrew and remove 1 mounting nut in Cover Terminal. (Use Adjustable Wrench) 2) Separate the Compressor Felt Sound. Samsung Electronics 3-15...
  • Page 30 3) As shown in the picture, unscrew and remove 3 mounting screws from the bottom. (Use Adjustable Wrench) Cond Out 1) Unscrew and remove 3 screws on each side of the Assy Cond Out. (Use +Screw Driver) 2) Separate the Compressor Felt Sound. 3-16 Samsung Electronics...

  • Page 31: Outdoor Unit

    Cabi Install Front 1) Unscrew and remove 1 screw in the Cabinet-Install Front. (Use +Screw Driver) Guard Cond 1) Pull the sensor from Guard Cond. 2) Unscrew and remove 4 screws in the Guard Cond. (Use +Screw Driver) Samsung Electronics 3-17...
  • Page 32 Cabinet Back RH. (Use +Screw Driver) Cabi Install Back 1) Unscrew and remove 1 screw in the Cabinet-Install Back. (Use +Screw Driver) Cabi Front LF 1) Unscrew and remove 10 screws in the Cabinet-Front LF. (Use +Screw Driver) 3-18 Samsung Electronics...
  • Page 33 2) Remove the Cover from the Fan Propeller 3) Turn 2 mounting nuts as shown in the picture and remove it. (Use Adjustable Wrench) When you assemble the Fan Propeller and the Cover, must check the rib in the hole. Samsung Electronics 3-19...
  • Page 34 1) Unscrew and remove 2 mounting screws in Bracket Motor. (Use +Screw Driver) Heater 1) Unscrew and remove 4 screws on the Base Out. (Use +Screw Driver) 2) Disconnect the heater wire from the Ass'y Control Out. 3-20 Samsung Electronics...
  • Page 35 Coolant inside the Compressor completely and remove the pipe with a welding flame. Assy EEV Valve 1) Unscrew and remove 2 mounting screws in Service Valve. (Use +Screw Driver) 2) Separate the pipe from the Entrance/ Exit using a welder. Samsung Electronics 3-21...

  • Page 36: Troubleshooting

    After entering the option setting status, select the option as listed below. On(SEG1~12) Off(SEG13~24) SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 Samsung Electronics...

  • Page 37: The Procedure Of Setting Option

    Press Mode button to be changed to AUTO mode in the OFF status. 11. Setting SEG14, SEG15 option Press Low Fan button( ) to enter SEG14 value. Press High Fan button( ) to enter SEG15 value. Each time you press the button, … will be selected in rotation. SEG14 SEG15 Samsung Electronics...
  • Page 38 Press Mode button to be change to HEAT mode in the OFF status. 19. Setting SEG23, SEG24 mode Press Low Fan button( ) to enter SEG23 value. Press High Fan button( ) to enter SEG24 value. Each time you press the button, … will be selected in rotation. SEG23 SEG24 Samsung Electronics...
  • Page 39 Step 5. Check operation 1) Reset the indoor unit by pressing the RESET button of indoor unit or outdoor unit. 2) Take the batteries out of the remote controller and insert them again and then press the operation button. Samsung Electronics...

  • Page 40: Order For Setting Options (Wired Remote Controller)

    Press the Set button to save the settings and exit to the sub-menu setting screen. Press the button to exit to normal mode. ]/[ ] buttons to set the range of Data bit. button to exit to the setting sub-menu without saving your changes. Samsung Electronics...

  • Page 41: Setting An Indoor Unit Installation Option (Suitable For The Condition Of Each Installation Location)

    If you input a number other than 0~4 of the individual control of the indoor unit(SEG20), the indoor is set as indoor 1. ▶ 4WAY MODEL : Even when the value of Heating setting compensation(SEG21) is set to '0' , it wil be recognized as '5°C' . Samsung Electronics...
  • Page 42 Individual control of a Heating setting Explanation PAGE remote controller compensation Remote Controller Display RESERVED RESERVED RESERVED Indication Details Indication Details Indication Details 0 or 1 Indoor 1 Disuse Indication Indoor 2 and Details 2°C Indoor 3 5°C Indoor 4 Samsung Electronics...

  • Page 43: Changing A Particular Option

    SEG3 SEG4 SEG5 SEG6 The option The tens’ digit of The unit digit of The changed Explanation PAGE MODE mode you want an option SEG an option SEG value to change you will change you will change Indication Samsung Electronics...

  • Page 44: Option Code For Each Model

    Troubleshooting 4-1-6 Option code for each model Model SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 Remocon display AC052MN4DKH AC071MN4DKH AC090MN4DKH AC100MN4DKH AC120MN4DKH AC140MN4DKH Model SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23...

  • Page 45: Items To Check Before Diagnostics

    Ver.3( Short press once after Ver.2) E2P version Year (Hex) Month (Hex) Date (Two digits) Date (One digit) ※ Press the K4 button long (Main MICOM version) Press once more shortly Press shortly one more time (E2P version) 4-10 Samsung Electronics...
  • Page 46 Set an auto address. Set a manual address. Snowdrift prevention control not used. Snowdrift prevention control used. Silent control not used Silent control used Step_1 Silent control used Step_2 Silent control used Step_3 Auto silent mode Manual silent mode Samsung Electronics 4-11...
  • Page 47 Segment 3 Segment 4 Eco Mode BLANK BLANK BLANK BLANK Press K3 to go out from the eco mode. Eco Mode Exit At the driving signal or test run (cooling/heating) of the user, the mode is released. 4-12 Samsung Electronics...

  • Page 48: Four Directions Cassette Type

    EEPROM component. EEPROM error operation- operation- operation- set the options. EEPROM option error between indoor and outdoor machine models Outdoor valve clogging operation- operation- operation- error. clogging. : On : Blink X : Off Samsung Electronics 4-13...

  • Page 49: Wired Remote Controller

    Operation Off protection error compressor. control error Outdoor unit Check the input power [Inverter] Total current error/ Operation Off protection Check the coolant charging status PFC over current error control error Check the normal operation of outdoor fan 4-14 Samsung Electronics...
  • Page 50 Check if the outdoor unit service value is open Operation Off error Check that the indoor/outdoor installation pipe/wiring are correct Outdoor unit Capacities not matched Check the option code of the indoor unit Operation Off protection control error Samsung Electronics 4-15...
  • Page 51 Wired remote Normal operation error COM2 terminal of the indoor unit controller error Wired remote controller COM2 Wired remote Check that Com1, Com2 setting DIP switch is set to Com2 Normal operation option setting error controller error 4-16 Samsung Electronics...

  • Page 52: Troubleshooting By Symptoms

    In this case, is the resistance 8.300 value out of range in the temperature table on the right? 10.00 12.10 Indoor temperature sensor 14.70 failure (replace) 18.00 Restart the system after replacing the PCB 22.00 28.30 33.90 42.30 Samsung Electronics 4-17...

  • Page 53: Indoor Heat Exchanger Temperature Sensor (Open/Short)

    In this case, is the resistance 8.300 value out of range in the temperature table on the right? 10.00 12.10 Failure of the indoor heat exchanger 14.70 temperature sensor (replace) 18.00 Restart the system after replacing the PCB 22.00 28.30 33.90 42.30 4-18 Samsung Electronics...
  • Page 54 DC 0V~DC 6V is output. Is the RPM of motor less than 120? ↓ ↓ 2 3 4 Motor Is voltage of DC 0V~DC 6V displayed? Check the motor and Check the PCB and replace it. replace it Samsung Electronics 4-19...

  • Page 55: Communication Error After Finishing Tracking

    PCB and replace the PCB Reconnect the cable connecting the outdoor unit to the indoor unit and restart the unit. If the communication still doesn’t work, replace the indoor unit PCB. Good +0.7V -0.7V 4-20 Samsung Electronics...

  • Page 56: Indoor Unit Float Sensor Error

    Drain pump PCB Is the terminal voltage around AC 220V? Is the water level in drain pan decreasing? Replace the drain pump Replace the indoor unit PCB Normal operation Replace the drain pump when the indoor power is reset Samsung Electronics 4-21...

  • Page 57: Eeprom Circuit Failure

    EEPROM component failure, EEPROM circuit parts missing/damaged/soldering failure Power on. E162 occurs. Are EEPROM SUM PBA correctly assembled? Reassemble EEPROM PBA. Is there a problem in soldering failure or short of between EEPROM PIN? Remove short or soldering failure. Replace EEPROM PBA. 4-22 Samsung Electronics...

  • Page 58: Thermal Fuse Open Error

    (Temperature rise by untightening a screw/ Termal Fuse open E198 occurs. Is the CN140 connector of PCB between wire correctly connected? Re-operation after the connector. Measure both ends of connector connected the TERMINAL BLOCK. Paragraph (Short) Has the connector ends? Replace the MAIN PBA. Samsung Electronics 4-23...
  • Page 59 1. Is there a fault in the connection of the power 1. Connect the power wire. supply to Main PCB and EMI PCB? 2. Turn on the Terminal Box and check whether normal power is supplied to the outdoor unit. Continue 4-24 Samsung Electronics...
  • Page 60 Terminal Box! When detaching and attaching the connector 2. Turn on the Terminal Box and check whether during power supply, the motor can be damaged.) normal power is supplied to the outdoor unit. If it is normal, replace the Fan Motor. Samsung Electronics 4-25...
  • Page 61 1. Is there a fault in the connection of the 1. Connect the power wire. power supply to Main PCB 2. Turn on the Terminal Box and check whether and EMI PCB? normal power is supplied to the outdoor unit. Continue 4-26 Samsung Electronics...
  • Page 62 Terminal Box! When detaching and attaching the 2. Turn on the Terminal Box and check whether connector during power supply, the normal power is supplied to the outdoor unit. motor can be damaged.) If it is normal, replace the Fan Motor. Samsung Electronics 4-27...
  • Page 63 Check the communication circuit of the Main PCB of the outdoor unit. Replace the Main PCB of the outdoor unit. 1. Is there a fault in communication IC? 2. Is there a fault in TVS-Diode? Continue 4-28 Samsung Electronics...
  • Page 64 COM 1(RED) #6 - #5 0.9kΩ ~ 1.2kΩ Measuring after separating the communicatio #7 - #5 0.9kΩ ~ 1.2kΩ connection #8 - #5 4.7Vdc ~ 5.3Vdc TVS-Diode Measuring Steady-state Measuring Value Both ends of diode 1kΩ or above Samsung Electronics 4-29...
  • Page 65 2. If Red - ON, Green - OFF, and Yellow - Blink are displayed in the LED display of outdoor unit Inverter, and there is no indication in 7-segment of outdoor unit Main PCB, replace the Main PCB The outdoor unit Inverter PCB is normal. 4-30 Samsung Electronics...
  • Page 66 Resistance(kΩ) 21 - Resistance : 205.4KΩ After checking normal operation, Does same error occur again after power ON? end the service. Replace the outdoor unit PCB. Power ON After confirming the state is normal, end the service. Samsung Electronics 4-31...
  • Page 67 3) If 3-phase power is normal check the phase of the power wire using 3-phasetester. If it shows reverse phase, change the current power wire connection. 4) After completing above, press reset key (K3) then check the 3-phase tester power again. 4-32 Samsung Electronics...
  • Page 68 Is the indoor Fan/Motor normal operation? Check the relevant indoor Fan Is the sensor on indoor heat exchanger display the temperature correctly? Refer to other temperature sensor error section to check for error. Check the clogging of indoor air inlet part. Samsung Electronics 4-33...
  • Page 69 If the error is indicated on 7-segment of the Main PCB of the outdoor unit, the Main PCB of the outdoor unit has no fault. In case of a control problem, it is possible to solve with S/W update. 4-34 Samsung Electronics...
  • Page 70 3. Replace the compressor : When loud abnormal from compressor rotation? noise generates (metal cutting or grinding noise), or severe vibration. Is there a reading of MegaΩ of resistance Replace the compressor. between compressor body and chassis? Continue Samsung Electronics 4-35...
  • Page 71 This error is related to the compressor and Inverter PCB. (Not related to the above PCB) Ensure that the service valve is open! When the service valve is closed, the defects may be caused by differential pressure when starting the compressor. 4-36 Samsung Electronics...
  • Page 72 2. Remove obstacle on the outlet and secure the space. Is service valve fully opened? Open the valve. Is compressor running properly? Replace the compressor. After replacing the Inverter PCB of the outdoor unit, check for normal startup. End the service. Samsung Electronics 4-37...
  • Page 73 Is the indoor unit installed properly? space. 2. Remove obstacle on the outlet and secure the space. Install again by following the standard Is indoor and outdoor unit wiring/piping specifications. installed properly? Piping Bad installation Wiring Continue 4-38 Samsung Electronics...
  • Page 74 Is there a reading of MegaΩ of resistance Replace the compressor. between compressor body and chassis? Turn off the power and change the location of Are the position and measuring value of the the temperature sensor or replace it. temperature sensor normal? Continue Samsung Electronics 4-39...
  • Page 75 This error is related to the Inverter PCB. (Not related to the above PCB) Ensure that the service valve is open! When the service valve is closed, the defects may be caused by differential pressure when starting the compressor. PCB connecting connector PCB connecting connector [RC060 /RC072 series] 4-40 Samsung Electronics...
  • Page 76 2. Are the power wire of the Power Terminal Box and terminal firmly assembled? Box and the power wire. Check the normal operation. End the service. After replacing the Inverter PCB of the outdoor unit, check for normal startup. End the service. Samsung Electronics 4-41...
  • Page 77 3. Replace the compressor : When loud abnormal noise generates (metal cutting or grinding noise), or severe vibration. Install again by following the standard Is indoor and outdoor unit wiring/piping specifications. installed properly? Bad installation Piping Continue Wiring 4-42 Samsung Electronics...
  • Page 78 Troubleshooting (Continue) Continue Open the valve. Is service valve fully opened? Is the indoor EVA sensor correctly connected? Reconnect the sensor connector. Charge the refrigerant. Is refrigerant charged? Replace the inverter PCB. Samsung Electronics 4-43...
  • Page 79 After that, recharge. or EEV appear? Check the temperature value through S-NET, Is it defect of indoor etc. and then if there is a fault, machine EVA sensor replace and reconnect. and connection state? 4-44 Samsung Electronics...
  • Page 80 It will enter the general operation stand by mode. ▶ Smart Install failure: Error code blink ※ In the event of Error Error code reference, please carry a house from scratch after an action mode for the Smart Install Error. Samsung Electronics 4-45...
  • Page 81 E508 (Smart install mode was not carried out).Upon resolving the problem, try to complete running the installation smart install mode. ※ Displayed E508 is not a malfunction, it is indication that did not carried out the smart Install mode after air conditioner installation. 4-46 Samsung Electronics...

  • Page 82: Others

    - Use by referring to the temperature scope of use on the product manual, etc. 14. OLP overheating and compressor stop : E463 - Check the opening of the sub valve. - Check the amount of the cooling water. - Check the OLP sensor. Samsung Electronics 4-47...
  • Page 83 3 (Black Wire) pin voltage : When it is more than 2.7V, replace the PCB. Type If type 2 is not defective, Booster Fan Wire 2 (White Wire), 3 (Black Wire) pin voltage : When it is approximately 5V, replace the PCB. 4-48 Samsung Electronics...

  • Page 84: Pcb Diagram And Parts List

    5. PCB Diagram and Parts List 5-1 Indoor Unit 5-1-1 MAIN PCB 21 23 This Document can not be used without Samsung’s authorization. Samsung Electronics...
  • Page 85 #6:DC12V #6 : DC12V #7 #10: LOUVER SIGNAL OUTPUT (21) CN801-SPI TB101-AC POWER TE04-COMMUNICATION #1: GND #1: POWER(L) #1: COM1(F1) #2: GND #2: POWER(N) #2: COM1(F2) #3: SPI SIGNAL OUTPUT(DC12V) #3: V1(DC12V) #4: V2(GND) #5: COM2(F3) #6: COM2(F4) Samsung Electronics...

  • Page 86: Panel Pcb

    #2 6 : LED Control Signal #7 : Not used #8 : Remocon Signal Out #9 : Not used #10 : Remocon Signal In #12 : Vcc #13 : Not used This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 87: Outdoor Unit

    SMW250-06 WHT 3711-000939 CN801 ERROR/COMP CHECK SMW250-04 RED 3711-000176 CN12 DC12V YW396-02V BLU 3711-000997 CN803 EEV1 SMW250-05 BLU 3711-001036 CN802 EEV4 SMW250-06 BLU 3711-001084 CN403 OUT TEMP/COND/DISQ/OLP SMW250-08 WHT This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 88: Inverter Pcb

    #3 : COMP. U-phase(YEL) #4 : DC 15V #4 : DC 15V #5 : FAN RPM #5 : FAN RPM #6 : FAN RPM feedback #6 : FAN RPM feedback This Document can not be used without Samsung’s authorization. Samsung Electronics...
  • Page 89 #3 : COMP. W-phase(YEL) #4 : DC 15V #4 : DC 15V #5 : FAN RPM #5 : FAN RPM #6 : FAN RPM feedback #6 : FAN RPM feedback This Document can not be used without Samsung’s authorization. Samsung Electronics...
  • Page 90 #2 : COMP. V-phase(BLU) #5 : FAN RPM, #6 : FAN RPM feedback #5 : FAN RPM, #6 : FAN RPM feedback #3 : COMP. U-phase(YEL) ⑨ CN600-REACTOR #1-#2 : DCL Reactor This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 91: Emi Pcb

    5-2-3 EMI PCB AC071JXSCEH, AC100JXSCEH ① ② ③ L1-AC POWER L phase N1-AC POWER N phase CN01-AC POWER L1 : BRN N1 : SKY-BLU #1-#3 : AC 220 240V This Document can not be used without Samsung’s authorization. Samsung Electronics...
  • Page 92 RST-AC POWER 3phase CN100-AC POWER #R : AC 380 400V : WHT #1-#3 : AC 220 240V #S : AC 380 400V : BRN #T : AC 380 400V : BLK This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 93: Heater Pcb

    ② AC POWER OUTPUT #1 AC POWER LINE - LIVE #1 AC POWER LINE - LIVE #2 AC POWER LINE - NEUTRAL #2 AC POWER LINE - NEUTRAL This Document can not be used without Samsung’s authorization. 5-10 Samsung Electronics...

  • Page 94: Wiring Diagram

    6. Wiring Diagram 6-1 Indoor Unit This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 95: Outdoor Unit

    6-2 Outdoor unit AC071JXSCEH, AC100JXSCEH Samsung Electronics...
  • Page 96 Outdoor Unit (cont.) AC100JXSCGH, AC125JXSCGH This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 97: Reference Sheet

    COOLING ONLY PREMIUM HEAT PUMP R410a DELUXE <- Basic HEAT RECOVERY STANDARD COOLING ONLY Low Temp. HEAT PUMP Cooling only R134A Heat Pump ※ "/" can be removed from the buyer card if there are not enough digits. Samsung Electronics...

  • Page 98: Outdoor Unit

    HEAT RECOVERY STANDARD COOLING ONLY UNIVERSAL HEAT PUMP DELUXE + Low Tepm. Cooling only R134A Heat Pump ★ ※ MCD: Dummy mock-up model ※ “/” can be removed from the buyer card if there are not enough digits. Samsung Electronics...

  • Page 99: Panel

    8 Languages English ★ Only display the Global 4 way with Korean/ English K separator. Pattern Waffle Stripe Korean Global market use 4 Way Export/ Panel foreign market use ※ Model name for the column/bundle packaging is “~S”. Samsung Electronics...

  • Page 100: Refrigerating Cycle Diagram

    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 compressor will overload the compressor.) Samsung Electronics...
  • Page 101 China china.samsungportal.com © Samsung Electronics Co., Ltd. December. 2016. This Service Manual is a property of Samsung Electronics Co., Ltd. Printed in Korea. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. Code No. AC-00172E_1...

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