Samsung AC200KNHPKH Service Manual
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Samsung AC200KNHPKH Service Manual

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AIR CONDITIONER
AC200KNHPKH
AC250KNHPKH
AC200KXAPNH
AC250KXAPNH
SYSTEM AIR CONDITIONER
ndoor Unit
Outdoor Unit
I
Model Name :
AC200KNHPKH
AC200KXAPNH
AC250KNHPKH
AC250KXAPNH
Model Code :
AC200KNHPKH/EU
AC200KXAPNH/EU
AC250KNHPKH/EU
AC250KXAPNH/EU
CONTENTS
1. Precautions
2. Product Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram
6. Wiring Diagram
7. Reference Sheet

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Summary of Contents for Samsung AC200KNHPKH

  • Page 1 SYSTEM AIR CONDITIONER ndoor Unit Outdoor Unit Model Name : AC200KNHPKH AC200KXAPNH AC250KNHPKH AC250KXAPNH Model Code : AC200KNHPKH/EU AC200KXAPNH/EU AC250KNHPKH/EU AC250KXAPNH/EU AIR CONDITIONER CONTENTS 1. Precautions 2. Product Specifications 3. Disassembly and Reassembly AC200KNHPKH AC250KNHPKH 4. Troubleshooting 5. PCB Diagram 6.

  • Page 2: Table Of Contents

    Contents 11. Precautions ............................1-1 Precautions for the Service ......................1-2 Precautions for the Static Electricity and PL ................1-3 Precautions for the Safety ....................... 1-4 Others ..............................12. Product Specifications ........................2-1 The Feature of Product ........................2-2 Product Specifications ........................
  • Page 3 PCB Diagram and Parts list ......................5-1 INDOOR UNIT ..............................5-2 OUTDOOR UNIT ..............................Wiring Diagram ..........................6-1 Indoor Unit ................................6-2 Outdoor Unit ................................ Reference Sheet ..........................7-1 Refrigerating Cycle Diagram ......................7-2 Index for Model Name ........................Samsung Electronics...
  • Page 4 - Release the valve caps on High and Low pressure side. - Use L wrench to close the valve on the high pressure side. - Approximately 2 minutes after, close the valve on the low pressure side. - Stop operation of the air conditioner. - Disconnect the pipes. 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

    2-2 Product Spectification AC200KNHPKH ITEM AC200KXAPNH/ Indoor Unit Outdoor Unit IMAGE MWR-WE10N Remote Controller Power Product 3Φ, 380~415V/50Hz Indoor W*D*H 1350 x 910 x 450 Outdoor W*D*H 940 x 460 x 1630 Indoor Product kg(Net) 82.5 Outdoor Product kg(Net) Capacity...
  • Page 7 (Cooling/Heating) In case of strongest air Outdoor unit 68/72 blow Refrigerant (R410A) 6600 (Charged for 30m) Liquid 9.52 Connecting Pipe 22.2 Additional Refrigerant (R410A) Standard Extension length(Total) Extension length(Elevation) Product Option 011074-1C50F0-270014-373800 Option Code 020000-100000-200000-300000 Installation Option 030000-100000-200000-300000 Samsung Electronics...

  • Page 8: Accessory

    Insu DRAIN HOSE DB62-11028A Indoor Unit INSU HOSE D DB62-11028E INSU TUBE OUT DB62-11028F ASSY DRAIN HOSE JOINT DB67-01191A Ass'y Drain Hose Joint DB90-06701A GROMMET-HANGER DB63-00237A RUBBER LEG DB73-20134A INSTALLATION MANUAL DB68-04924A Outdoor unit DRAIN PLUG DB67-00477A RUBBER LEG DB73-20134A Samsung Electronics...

  • Page 9: Disassembly And Reassembly

    3. Disassembly and Reassembly ■ Necessary Tools Item Remark +SCREW DRIVER MONKEY SPANNER -SCREW DRIVER NIPPER ELECTRIC MOTION DRIVER L-WRENCH Samsung Electronics...

  • Page 10: Indoor Unit

    3-1 Indoor Unit ■ AC200KNHPKH / AC250KNHPKH Parts Procedure Remark Commom 1)Disasseble the Cover Control. - Unscrew 2 screws Samsung Electronics...
  • Page 11 Motor & Fan 1) Disassemble the connection wire to take the motor fan out 2) Disassemble th Cabinet Top Fan. - Unscrew 6 screws 3) Disassemble the Link Screw - Unscrew 3 screws 4) Disassemble Cabinet Top Fan. Samsung Electronics...
  • Page 12 Parts Procedure Remark 5) Disassemble 2 Case Blower Top. - Unscrew 8 screws 6) Disassemble 1 Holder Motor. - Unscrew 2 screws 7)Disassemble Motor wire from 2 holder wire Samsung Electronics...
  • Page 13 Parts Procedure Remark 8) After disassemble the Motor and Blower for the set, disassemble the Blower by use of 3mm wrench. 9)Disassemble 2 Case blower bottom. - Unscrew 4 screws 10)Disassemble the Bracket Motor. - Unscrew 4 screws Samsung Electronics...
  • Page 14 Parts Procedure Remark Control Box 1)Disassemble Evap Sensor wire and EEV wire(20kW only) 2) Disassemble the Case Control. - Unscrew 3 screws Samsung Electronics...
  • Page 15 Parts Procedure Remark Evap 1)Disassemble The Case Evap Top - [AC***JNHFKH]Unscrew 8 screws - [AC***JNHPKH]Unscrew 6 screws 2)Disassemble The Cushion Front. 3)Disassemble The Cushion Support. - Unscrew 1 screw Samsung Electronics...
  • Page 16 Parts Procedure Remark 4)Disassemble The Cover pipe. - Unscrew 3 screws 5)Remove The cable tie on the Support Evap 6)Disassemble The Evap. - Unscrew 4 screws Samsung Electronics...
  • Page 17 - Unscrew 3 screws 4)Disassemble 2 Case blower bottom. - Unscrew 4 screws 5)Disassemble Bracket Motor and Motor. - Unscrew 4 screws 6)After disassemble the Motor and Blower for the set, disassemble the Blower by use of 3mm wrench. Samsung Electronics...
  • Page 18 Parts Procedure Remark 7)Disassemble The Case Blower Top. - Unscrew 8 screws 3-10 Samsung Electronics...
  • Page 19 Parts Procedure Remark Control Box 1)Disassemble Evap Sensor wire and EEV wire(20kW only) 2) Disassemble the Case Control. - Unscrew 3 screws Samsung Electronics 3-11...
  • Page 20 1)Disassemble The Case Evap Bottom - [AC***JNHFKH]Unscrew 11 screws - [AC***JNHPKH]Unscrew 7 screws 2)Disassemble The Drain Pan 3)Disassemble The Cover pipe. - Unscrew 3 screws 4)Remove The cable tie on the Support Evap 5)Disassemble The Support Evap. - Unscrew 2 screws 3-12 Samsung Electronics...
  • Page 21 6)Disassemble The Evap. - Unscrew 2 screws ① Moving the Evap 2~5cm to pipe direction ② Holding the pipe side and then rotating the opposite side ③ Moving the Evap in the direction of the arrow 3 Samsung Electronics 3-13...

  • Page 22: Outdoor Unit

    Warning:Make sure the power is disconnected before work 1) Remove 3 screws. (use "+" screw driver or electric motion driver) CABINET TOP 2) Remove 8 screws around cabi top. (use "+" screw driver or electric motion driver) 3-14 Samsung Electronics...
  • Page 23 1) Remove 2 screws (use "+" screw driver or electric motion driver) and lift up to take INSTALL off. GUARD COND 1) Take off the sensor. 2) Remove 4 screws. (use "+" screw driver or electric motion driver) Samsung Electronics 3-15...
  • Page 24 Parts Procedure Remark CABI BACK RIGEHT 1) Take out the sensor wire through the holeon cabinet. 2) Remove 13 screws. (use ""+"" screw driver or electric motion driver) 3-16 Samsung Electronics...
  • Page 25 Parts Procedure Remark CABINET BACK INSTALL 1) Remove 2 scrwe. (using "+" screw driver or electric motion driver) CABI FRONT LF 1) Remove 10 screws. (using "+" screw driver or electric motion driver) Samsung Electronics 3-17...
  • Page 26 Remark FAN PROPELLER 1) Remove nut,take out the fan. (using wrench turn clockwise) MOTOR 1) Remove 4 screws,take off the motor. (using "+"screw driver or electric motion driver) 2) Pull out the connector on main pcb board. 3-18 Samsung Electronics...
  • Page 27 2) Remove the screw that fix comp power wire. (using "+" screw driver or electric motion driver) 3) Remove the screw that fix comp power wire. (using "+" screw driver or electric motion driver) Samsung Electronics 3-19...
  • Page 28 (using "+" screwdriver or electric motion driver) b) Remove 2 screws that fix reactor wire. (using "+" screwdriver or electric motion driver) c) Remove 2 screws that fix reactor and pull up it. (using "+" screwdriver or electric motion driver) 3-20 Samsung Electronics...
  • Page 29 PBA. e) Remove 2 screws that fix PBA CASE,and pull out assy fan motor diver PBA, d) Pull out the connector wire that's on MAIN PBA. e) Remove 4 screws that fix MAIN PBA,and pull out it. Samsung Electronics 3-21...
  • Page 30 PCB is 4. h) Band the handel of the case and take off the assy inverter PBA. (Reffer right pic) Warning : Becareful when take off inverter pcb ;when reas- semble should ensure the silicon grease thin and even. 3-22 Samsung Electronics...
  • Page 31 Parts Procedure Remark CONTROL BOX i) Pull out the connector wire that's on EMI PBA. j) Remove 4 screws that fix EMI PBA,and pull out it. (using "+" screwdriver or electric motion driver) Samsung Electronics 3-23...
  • Page 32 Remark CONTROL BOX 5) Remove 4 screws that fixing heat sink with control case. 6) Remove 5 screws that fixing control box with partition and bracket valve. 7) Then you can take off the whole control box. 3-24 Samsung Electronics...
  • Page 33 Warning : When removing the compressor,Heat Exchanger, and Pipe, purge the Coolant inside the Compressor com- pletely and remove the pipe with a welding flame. TUBE DISCHARGE 1) Separate 2 weld points by using a welder. (Tube discharge to oil separator&compressor) Samsung Electronics 3-25...
  • Page 34 Procedure Remark ASSY TUBE-OIL 1) Separate 2 weld points by using a welder . (1. Oil separator to 4way valve tube. 2.Oil SEPARATOR tube to suction tube.) 2) Remove 2 screws that fix oil separator on accumulator. 3-26 Samsung Electronics...
  • Page 35 2) Separate 2 weld points by using a welder (1.scution tube to comperessor. 2.tube vapor to comperessor.) 3) Remove 3 screws refer to the picture. - After ewmove screw on bracket valve, need to pall up it from patition Samsung Electronics 3-27...
  • Page 36 Parts Procedure Remark ASSY COND 1) Remove 1 screw that fix partition. Remove 2 screws that fix cond. (Using "+" screwdriver or electric motion driver.) 3-28 Samsung Electronics...
  • Page 37 1) Remove felt top and felt side from com- peressor. 2) Open cover power of comp,remove power wire. (using "+" screwdriver or electric motion driver) 3) Remove 3 screws on front of comp and 1 screw back of comp. Samsung Electronics 3-29...
  • Page 38 1) Separate 1 weld points by using a welder. (EEV tube to cond) 2) Separate 1 weld points by using a welder. (EEV tube to tube plate cooling) 3) Remove 2 screws fix assy eev tube on brack- et accumulator. Pull out assy tube-EEV. 3-30 Samsung Electronics...

  • Page 39: Troubleshooting

    Heating operation blocked Self diagnostic error Cooling operation blocked Self diagnostic error Outdoor fan 1 error Self diagnostic error [Inverter] Compressor startup error Outdoor unit protection control error [Inverter] Total current error/PFC over current error Outdoor unit protection control error Samsung Electronics...
  • Page 40 Self diagnostic error Capacities not matched Outdoor unit protection control error Communication error between the indoor unit and Wired remote controller error wired remote controller Communication error between the Master and Wired remote controller error Slave wired remote controllers Samsung Electronics...
  • Page 41 2 min- with operation) utes) Flickering X Off   If you turn off the air conditioner when the LED is flickering, the LED is also turned off. Samsung Electronics...

  • Page 42: Outdoor Trouble Shooting

    FAN2 error E387 Hall IC connection error of Fan2 FAN2 error E389 V-limit error on Fan2 of compressor FAN2 error E391 Error due to DataFlash of Fan2 FAN2 error E393 Output current sensor error of Fan2 FAN2 error Samsung Electronics...
  • Page 43 Error due to overcurrent of Fan1 FAN1 error E484 PFC Overload (Over current) Error Check Outdoor Inverter PBA. E485 Error on input current sensor of inverter 1 (Short or Open) Check Outdoor EEPROM PBA E486 Over-voltage/low-voltage error of Fan1 FAN1 error Samsung Electronics...
  • Page 44 Option code miss matching among the indoor units (only E557 Check the indoor option code for DPM) Outdoor EEPROM checksum error between MAIN E590 and INVERTER (AC JXAFKH, AC JXAFNH,   JXAPNH)  E660 Inverter Boot Code error Samsung Electronics...

  • Page 45: Troubleshooting By Symptoms

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

  • Page 46: Eva In And Out Sensor (Open/Short)

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

  • Page 47: Float Switch(Open)

    Is the terminal voltage around DC12V? Is the water level in drain pan decreasing? Replace the drain pump Replace the indoor unit PCB Normal operation • F loat sensor error is cleared only Replace the drain pump when the indoor power is reset Samsung Electronics...

  • Page 48: Fan Error

    How soon do the error occur after fan Was FAN stopping in operation? and restart the unit. opreation? More than 6 minutes About one minute Replace the MAIN/BLDC PCB and Replace the MAIN/BLDC PCB and restart the unit. restart the unit. 4-10 Samsung Electronics...

  • Page 49: Eeprom Error

    Connect the EEPROM PCB to MAIN PCB and restart the unit Reconnect the EEPROM PCB to MAIN PCB Is the error mode disappear ? Replace the EEPROM PBA and restart the unit The indoor unit work normaly Samsung Electronics 4-11...

  • Page 50: Option Error

    Wire remote controller display E163 Symptom EEPROM option setting error Failure Option error Input the right option to EEPROM PCB Is the error mode disappear ? Replace the PCB and restart the unit The indoor unit work normaly 4-12 Samsung Electronics...

  • Page 51: Terminal Block's Terminal Fuse(Open)

    Remove the wire connector from the PCB and measure the resistance between two terminals Is the resistance 0Ω ? Replace the Terminal Block and restart the unit Replace the PCB and restart the unit Samsung Electronics 4-13...

  • Page 52: Communication Error After Finishing Tracking (E202)

    If the communication still doesn’t work, indoor unit PCB and outdoor unit PCB in order of mention. Good +0.7V -0.7V cf.) If there is no oscillo scope, it can be replaced multimeter instead of osillo scope. 4-14 Samsung Electronics...

  • Page 53: Outdoor's Service Valve(Clog)

    Wire remote controller display E422 Symptom Clogging of outdoor's service valve Failure Valve clog Is the outdoor service Check the normal of EVA-IN Was lacking in refrigerant? valve clogged? TEMP SENSOR. Open the outdoor's service valve Refrigerant Charge. Samsung Electronics 4-15...

  • Page 54: No Power(Completely Dead) - Initial Diagnosis

    Is the voltage between Replace the inverter PBA the terminal 2 (~) and 4 (~) of the bridge diode 220V? Is the fuse connected? Replace the fuse Replace the inverter PBA Is the resistance value of R001 200Ω? Cont. 4-16 Samsung Electronics...
  • Page 55 Outdoor unit is not powered on – Initial diagnosis (1phase) (cont.) Cont. Is the reactor connector Connect the reactor connected correctly? Replace the PBA. Samsung Electronics 4-17...
  • Page 56 Replace the PCB of the indoor unit if the PCB (Transformer, fuse, pcd, etc.) fails voltage (V1-V2) 12Vdc? Does the air conditioner operate when pressing ON/OFF button of the Replace the wired remote controller wired remote controller? Cont. 4-18 Samsung Electronics...
  • Page 57 Are the option DIP switches Reconfigure the option DIP switches inside the wired remote controller configured correctly? Is there an error Check the system depending message displayed on the wired remote on the error display controller display? Check the target temperature Samsung Electronics 4-19...

  • Page 58: E102 : Communication Error Between Indoor And Outdoor Unit

    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. Replace the outdoor unit PCB. 4-20 Samsung Electronics...

  • Page 59: External Sensor Error (Error Code: E221, E231, E251, E320)

    After confirming the state is normal, Does the same error occur again end the service. after power is on? Replace the outdoor unit PBA. → Power is on. → After confirming the state is normal, end the service. Samsung Electronics 4-21...

  • Page 60: E403 : Freezing Control Causes Comp. Down

    The indoor FAN/MOTOR operates normally? The indoor EEV operates normally? Check the EEV. The indoor heat Exchanger sensor displays the Same as when checking other temp sensors. temperature ok? Check for clogging in the suction area of the indoor machine. 4-22 Samsung Electronics...

  • Page 61: E416 : Dischage Temperature Sensor Error

    Test operation Connect S-net to vacuum. (Forceful) All the sub valves open? Open the sub valve. The outdoor/indoor EEV operates normally? Check the EEV. Clogging in the pipeline? Check the pipeline. (ex-filter) Check the amount of coolant. Samsung Electronics 4-23...

  • Page 62: E440, E441 : Abnormal Outside Temperature Halts Operation Of The Compressor

    When the product malfunctions, if the actual situation does not match the above diagnosis, measure the temperature of incoming air with S-net to see if the measurement is the same as the actual outdoor temperature. If not, replace the temperature sensor. 4-24 Samsung Electronics...

  • Page 63: Outdoor Unit Bldc Fan1 Or Fan2 Error (E458 : Fan1 Error, E475 : Fan2 Error)

    4) Is the resistance value of sensor connection pull_up correct? 2. Troubleshooting procedure Remove the Fan lock. Isn't the Fan locked? Is the connector connected correctly? Connect the connector. Is the color of Fan wire matched correctly? Replace the Fan. Replace the PCB. Normal operation Exit Samsung Electronics 4-25...

  • Page 64: E461: Compressor Start Error

    Is the interphase resistance value of Replace the compressor. compressor(u↔v, v↔w, w↔u) normal? Is the compressor body and Replace the compressor. interphase resistance insulated? Is the connection cable for the Correct the cable connection. compressor and power terminal normal? Replace the PCB. 4-26 Samsung Electronics...

  • Page 65: E462 : Current Protection Control Causes Comp. Down

    E484 : PFC overload error Outdoor unit display E462,E484 • The outdoor machine input current above I_Trip. Criteria •Check the compressor input voltage. (error for low voltage.) Cause of problem •Check the overcurrent option setting. How to check Compressor input voltage supplied ok? Check the input power terminal. Overcurrent option setting ok? Correct the overcurrent setting. Finished inspections Samsung Electronics 4-27...

  • Page 66: E463 : Olp Protection Control Caused Comp. Down

    Test operation Connect S-net to vacuum. (forceful) All the sub valves open? Open the sub valve. The outdoor/indoor EEV operates normally? Check the EEV. Clogging in the pipeline? Check the pipeline. (ex-filter) Check the amount of coolant. 4-28 Samsung Electronics...

  • Page 67: E464 : O.c. (Over Current) Error

    Is insuration resistance between each Replace the compressor compressor terminal and body normal? Does the compressor rotate normally? Replace the compressor Did AC power voltage interruption happen Check AC power source during the compressor in operation? Replace INVERTER PCB Samsung Electronics 4-29...

  • Page 68: E466: Dc Link Over Voltage/ Low Voltage Error

    Is each contact resistance normal? Replace M/C (less than 0.1ohm) Does the error reappear frequently Replace INVERTER PCB The cause of this error may be power source trou- ble as like power interruption. Check the power source. 4-30 Samsung Electronics...

  • Page 69: Pipe Blocking Error (Error Code: E422)

    After that, the refrigerant leakage. recharge. Check the temperature value through Check the fault in the indoor unit EVA S-NET, etc. and then if there is a fault, replace sensor and the connection state. and reconnect. Samsung Electronics 4-31...

  • Page 70: The Others

    7. Outdoor overload protection control (at the stop of the compressor.) : E404 • Check whether the fan and the motor operate normally. • Check the operation of EEV. • Check the temperature sensor of the indoor unit heat Exchanger. • Check the indoor unit inlet blocking. 4-32 Samsung Electronics...

  • Page 71: Setting Option Setup Method

    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 4-33...
  • Page 72 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. 4-34 Samsung Electronics...
  • Page 73 RESERVED RESERVED SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 External control Number of hours External control S-Plasma ion Buzzer output using filter SEG19 SEG20 SEG21 SEG22 SEG23 Individual control Heating setting of a remote RESERVED RESERVED compensation controller Samsung Electronics 4-35...
  • Page 74 • 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. 4-36 Samsung Electronics...
  • Page 75 Main menu Sub menu Functions SEG used Default Range 0 - OFF (Fail or Disable) Automatic Air-Volume State 1 - Completion. Return 2 - Running Automatic Air-Volume. 0 - Disable Automatic Air-Volume Operation 1 - Enable Automatic Air-Volume Voltage Setting Samsung Electronics 4-37...
  • Page 76 If the external static pressure is high so that the duct becomes longer or if the external static pressure is low so that the duct becomes shorter, adjust the fan speed by referring the following table. Model AC200KNHPKH AC250KNHPKH Static Pressure(mmAq) Option code for indoor unit 5≤ESP<7.5...
  • Page 77 0 : No Use 1 : +1 Step 2 : +2 Step • Press the button anytime during setup to exit without setting. NOTE • According to airflow changed from the Easy Tuning,Air conditioning performance reducing is possible. Samsung Electronics 4-39...

  • Page 78: Items To Be Checked First

    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 4-40 Samsung Electronics...

  • Page 79: Pcb Diagram And Parts List

    5. PCB Diagram and Part List 5-1 INDOOR UNIT MAIN PBA AC200KNHPKH / AC250KNHPKH Part Code Local Function Description 3711-003942 CN140 Fuse Check SMW200-02P WHT 3711-000203 CN906 BLDC POWER YW396-03AV WHT 3711-003407 CN702 Comp Signal YW396-03AV RED 3711-003404 CN101 MAIN POWER...
  • Page 80 EMI PBA AC200KNHPKH / AC250KNHPKH part code location No. Function Description 3712-001139 IN-L TAB,MALE,6.35x0.8mm 3712-001139 IN-N TAB,MALE,6.35x0.8mm 3712-001139 OUT-L TAB,MALE,6.35x0.8mm 3712-001139 OUT-N TAB,MALE,6.35x0.8mm Samsung Electronics...
  • Page 81 BLDC PBA AC200KNHPKH / AC250KNHPKH Part Code Local Description 3711-000798 CN12 COMM,UART Port 3711-004712 CN11 Main to BLDC signal 3711-005852 CN15 Reactor connect 3711-003404 CN10 BLDC PBA power 3711-006048 CN14 Main PBA power 3711-000260 CN13 Motor power Samsung Electronics...
  • Page 82 5-2 OUTDOOR UNIT 5-2-1MAIN (cont.) Refer the next page When replace the MAIN PBA, remove the EEPROM from the existing MAIN PBA and insert it at the new MAIN PBA. Samsung Electronics...
  • Page 83 MAIN (cont.) Description Description Description CN70-AC POWER CN714-CCH 1 OUT CN55-COMM PBA LIVE NEUTRAL LIVE NEUTRAL CN901-DRED CN71-HIGH PRESSURE S/W DRED1 DRED2 DRED3 CN708-4WAY VALVE Valve NEUTRAL Samsung Electronics...
  • Page 84 MAIN Samsung Electronics...
  • Page 85 LOW PRESS SENSOR Description CN43-TEMP. SENSOR #1 : Comp1 disachrge #2 : comp1 discharge #3 : Comp1 top #4 : Comp1 Top #5 : Cond out #6 : Cond out #7 : Outdoor Temp. #8 : Outdoor Temp. Samsung Electronics...
  • Page 86 5-2-2 Inverter Samsung Electronics...
  • Page 87 #1 : 500V #2 : IN-SMPS-RELAY #2 : REACTOR #2 : GND #2 : GND(500V) #3 : COMM-IN #3 : 5V-FAN #4 : GND-MAIN #4 : AD-SELECT ⑨ CN13 - ACPOWER #1 : AC #2 : #3 : AC Samsung Electronics...
  • Page 88 ④ CN23- INVERTER 220V CN21-FAN A CN22-MAIN 220 RST- RST INPUT #1 : AC #1 : R #1 : AC T-IN #2 : #2 : S #2 : AC S-IN #3 : AC #3 : T R-IN 5-10 Samsung Electronics...
  • Page 89 5-2-4 Fan Samsung Electronics 5-11...
  • Page 90 RX-DEBUG 12 V-INV TX-DEBUG INV SMPS RELAY-INV U1-V1-W1 BOOT COMM-INV FAN1-U GND-INV FAN1-V CN101-FAN2 HALL SENSING FAN1-W HALL - U CN401-POWER DC 540 V HALL - V U2-V2-W2 HALL - W FAN2-U MOTOR - TEMP FAN2-V FAN2-W 5-12 Samsung Electronics...
  • Page 91 5-2-5 Communication Description TB-COMM Samsung Electronics 5-13...

  • Page 92: Indoor Unit

    6. Wiring Diagram 6-1 Indoor Unit AC200KNHPKH / AC250KNHPKH DB68-05077A-2 This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 93: Outdoor Unit

    6-2 Outdoor Unit AC200KXAPNH / AC250KXAPNH This Document can not be used without Samsung’s authorization. Samsung Electronics...

  • Page 94: 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 compres- sor will overload the compressor.) Samsung Electronics...

  • Page 95: Index For Model Name

    ->4Way : 4 , MSP Duct : DUCT (In/ STANDARD+GENERAL M , Ceiling : C Temp.+NON MODULE CEILING out) STANDARD CONSOLE DELUXE + TROPICAL FLOOR MOUNTING ※ / can be removed from the buyer card if there are not enough digits. Samsung Electronics...
  • Page 96 © Samsung Electronics Co., Ltd Apr. 2016. This Service Manual is a property of Samsung Electronics Co., Ltd. Any unauthorized use of Manual can be punished under applicable Printed in China. International and/or domestic law. Code No. DB68-00000A (1)

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