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SYSTEM AIR CONDITIONER 4 WAY CASSETTE SERIES INDOOR UNIT OUTDOOR UNIT Model : AC030JN4DCH AC030JXSCCH AC036JN4DCH AC036JXSCCH AIR CONDITIONER CONTENTS 1. Precautions 2. Product Specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. PCB Diagram 6. Wiring Diagram 7. Reference Sheet...
4-3-5 Indoor unit float sensor error ......................4-21 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 (AC048JXQRHH, AC048JXQRHC): 3-phase products ......4-24 Samsung Electronics...
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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...
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...
– 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...
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...
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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...
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- 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...
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.
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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...
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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...
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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...
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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...
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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...
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...
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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) Samsung Electronics...
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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. 3-10 Samsung Electronics...
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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. Samsung Electronics 3-11...
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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. 3-12 Samsung Electronics...
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...
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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...
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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...
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...
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...
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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...
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...
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...
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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...
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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...
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...
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Replace the PBA of the outdoor unit. Check the coolant charging status Check the indoor EVA sensor Self diagnostic Gas leak error Check if the outdoor unit service value is open Operation Off error Check that the indoor/outdoor installation pipe/wiring are correct Samsung Electronics 4-15...
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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...
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...
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 14.70 exchanger temperature sensor (replace) 18.00 Restart the system after replacing the PCB 22.00 28.30 33.90 42.30 4-18 Samsung Electronics...
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DC 0V~DC 6V is output. Is the RPM of motor less ↓ ↓ 2 3 4 than 120? 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...
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...
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...
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...
(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...
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1. Is there a fault in the connection of the 2. Check whether the power of the outdoor unit power supply to Main PBA is supplied by powering on the terminal box. and EMI PBA? RC072DHXB Series ignored Continued 4-24 Samsung Electronics...
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If it is normal, replace the fan motor. Outdoor inverter PBA Indoor control PBA checking part checking part Fan Motor Connector [RC090/100/125/140/145 HXE , [RC072DHXB ] RC100DHXB ] Samsung Electronics 4-25...
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PBA of the outdoor unit. Replace the main PBA of the outdoor unit. 1. Is there a problem in communication IC? 2. Is there a fault in TVS-Diode? Fault checking part Communication IC Communication TVS-Diode TVS-Diode [RC090/100/125/140/145 HX [RC072DHXB ] Continued 4-26 Samsung Electronics...
COM 1(RED) #6 - #5 0.9kΩ ~ 1.2kΩ Measuring after separating the communication #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 4-27...
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The outdoor unit inverter PBA is normal. (CN31) Main PBA connecting part (CN39) [Main PBA 7-segment HXG , RC145DHXH , HX , RC100DHXB , AC100FCA GH Inverter PBA LED FCA EH Inverter PBA LED confirming part (Common)] confirming part ] confirming part] 4-28 Samsung Electronics...
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(°C) 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 4-29...
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If the error is indicated on 7-segment of the main PBA of the outdoor unit, the main PBA of the outdoor unit has no fault. In case of a control problem, it is possible to solve with S/W update. 4-30 Samsung Electronics...
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3. Is there abnormal noise 3. Compressor replacement: Serious abnormal in the rotation of the compressor? noise (Metallic scraping or grinding noise), serious vibration s the resistance between Replace the compressor. the compressor body and the chassis Mega Ω? Continued Samsung Electronics 4-31...
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Because it is an error regarding the inverter PBA, it is not related to the aforementioned PBA. Ensure that the service valve is open! While the service valve is closed and the COMP. starts, it is possible to cause a fault due to differential pressure. PBA connecting connector COMP connecting connector [RC072DHXB ] 4-32 Samsung Electronics...
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2. Remove the obstacles of the outlet and secure the space. Has the service valve been completely open? Open the valve. Does the compressor work correctly? Replace the compressor. After replacing the inverter PBA of the outdoor unit, check normal startup. End the service. Samsung Electronics 4-33...
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2. Remove the obstacles of the outlet and secure the space. Re-install correctly under the product Have the pipes and wires of indoor and specifications. outdoor units been correctly installed? Continued Pipe Poor installation Wire 4-34 Samsung Electronics...
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Is the resistance between the compressor Replace the compressor. body and the chassis Mega Ω? After power is off, Are the position and measuring value of correct or replace the sensor position. the temperature sensor normal? Continued Samsung Electronics 4-35...
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E464 Error-related, EMI / outdoor unit Main / Indoor unit Main PBA do not AC100FCA GH] replace! This error is related to the compressor and Inverter PBA. (Not related to the above PBA) COMP connecting PBA connecting connector connector [RC072DHXB Series] 4-36 Samsung Electronics...
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Check the normal operation the reactor or broken or Shut down the service loosened terminal? HXG , RC145DHXH , AC100FCA GH Confirmation Matters] [RC090/100/125/140 HXE , RC100 HXB , AC FCA EH Confirmation Matters] [RC072DHXB Confirmation Matters] Continued Samsung Electronics 4-37...
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2. Connect the terminal of the power terminal box and the power cable. Check normal assembled? startup. End the service. After replacing the inverter PBA of the outdoor unit, check normal startup. End the service. 4-38 Samsung Electronics...
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(Metallic scraping or grinding noise), compressor? serious vibration Re-install correctly under Have the pipes and wires of indoor and the product specifications. outdoor units been correctly installed? Poor installation Pipe Continued Wire Samsung Electronics 4-39...
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Troubleshooting (Continued) Continued Has the service valve been completely Open the valve. opened? Re-connect the sensor connector. Is the indoor EVA sensor correctly connected? Charge the refrigerant. Has the refrigerant been charged? Replace the inverter PCB. 4-40 Samsung Electronics...
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 4-41...
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11. IPM (IGBT Module) or PFCM temperature sensor error: E474 IPM overheat error for outdoor unit inverter compressor: E500 - Check whether IPM is correctly assembled on the heatproof plate. - Check whether the inlet is blocked. - If there is a defect, replace IPM. 4-42 Samsung Electronics...
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...
#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...
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...
#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...
PCB Diagram and Parts List 5-2-3 EMI PCB 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...
AC POWER INPUT 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. Samsung Electronics...
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...
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...
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...
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...