SYSTEM AIR CONDITIONER Basic : NS070LHXEA&UH070EAV2 DH070EAV1&UH070EAV2 Model : NS035LDXEA NS052LDXEA NS071LDXEA NS052SDXEA NS071SDXEA Model Code : NS035LDXEA NS052LDXEA NS071LDXEA NS052SDXEA NS071SDXEA AIR CONDITIONER RC035DHXEA RC052DHXEA RC071DHXEA RC052DHXEA RC071DHXEA RC035DHXEA RC052DHXEA RC071DHXEA RC052DHXEA RC071DHXEA CONTENTS 1. Precautions 2. Product Specifications 3. Disassembly and Reassembly NS035/052/071LDXEA 4. Troubleshooting 5. PCB Diagram and Parts List NS052/071SDXEA 6.
Contents 11. Precautions ........................................................................................................................................ 1-1 1-1 Installing the air conditioner .......................................................................................................... 1-1 1-2 Power supply and circuit breaker .................................................................................................. 1-1 1-3 During operation ..................................
1. Precautions 1-1 Installing the air conditioner O Users should not install the air conditioner by themselves. Ask the dealer or authorized company to install the air conditioner except the window-type air conditioner in U.S.A and Canada. O If you don’t install the air conditioner properly, it may cause a fire, a water leakus ero ng O You must install the air conditioner according to the national wiring regulations da age or an electric shock. and safety regulations.
1-3 During operation O Do not repair the air conditioner at your discretion. It is recommended to contact a service center directly. O Never spill any kind of liquid on the air conditioner. If this happens, turn off the air conditioner and contact an authorized service center. O Do not insert anything between the airflow blades to prevent damage of the inner fan and consequent injury. Keep children away from the air conditioner. O Do not place any obstacles in front of the air conditioner.
2. Product Specifications 2-1 The Feature of Product Q Built-in Cassette Type After installed, the air conditioner can be harmonized with a room interior. Q High Performance & Energy Saving With the advanced BLDC inverter technology, it makes a room cool with highly energy saving and arises the efficiency of air conditioner. Q Long Piping(Length & Height) It can give the benefit to the installers and aries the reliability of the air conditioner.
2-2 Product Specifications Power Performance Model Cooling(MIN/STD/MAX) Heating(MIN/STD/MAX) Dehumidifying Cooling Air Volume Heating Cooling Noise Heating Cooling Energy Efficiency Ratio Heating Power Cooling Power Consumption Heating Cooling Operating Current Heating Cooling Power Factor Heating Outer Dimension W W ℓ/h m³/min (H/M/L) dB (H/M/L) W/W ph/V/Hz W A % WidthxHeightxDepth Weight(Net) mm inch kg Size Model Compressor Type Rated Output Motor Oil Type Blower Motor Type Type Rated Output
Product Specifications(cont.
Product Specifications(cont.
Product Specifications(cont.) Power Performance Model Cooling(MIN/STD/MAX) Heating(MIN/STD/MAX) Dehumidifying Cooling Air Volume Heating Cooling Noise Heating Cooling Energy Efficiency Ratio Heating Power Cooling Power Consumption Heating Cooling Operating Current Heating Cooling Power Factor Heating Outer Dimension W W ℓ/h m³/min (H/M/L) dB (H/M/L) W/W ph/V/Hz W A % WidthxHeightxDepth Weight(Net) Indoor Unit Outdoor Unit NS052SDXEA RC052DHXEA 1000/ 5000/ 6000 750/ 6000/ 7200 45 58 45 58 3.21 3.
Product Specifications(cont.) Power Performance Model Cooling(MIN/STD/MAX) Heating(MIN/STD/MAX) Dehumidifying Cooling Air Volume Heating Cooling Noise Heating Cooling Energy Efficiency Ratio Heating Power Cooling Power Consumption Heating Cooling Operating Current Heating Cooling Power Factor Heating Outer Dimension W W ℓ/h m³/min (H/M/L) dB (H/M/L) W/W ph/V/Hz W A % WidthxHeightxDepth Weight(Net) Indoor Unit Outdoor Unit NS071SDXEA RC071DHXEA 2200/ 7100/ 8000 1900/ 8000/ 9000 17.86/19.84/20.65 15.
2-3 The Comparative Specifications of Product Item NS035LDXEA/RC035DHXEA NS035LHXEA/UH035EAV1(Basic) Indoor Unit 26.0kg 22.0kg Outdoor Unit 33.0kg 50.
The Comparative Specifications of Product(cont.) Item NS052LDXEA/RC052DHXEA NS052LHXEA/UH052EAV1(Basic) Indoor Unit 26.0kg 26.0kg Outdoor Unit 33.0kg 50.
The Comparative Specifications of Product(cont.) Item NS071LDXEA/RC071DHXEA NS071LHXEA/UH071EAV2(Basic) Indoor Unit 32.0kg 32.0kg Outdoor Unit 54.5kg 54.
The Comparative Specifications of Product(cont.) Item NS052SDXEA/RC052DHXEA DH052EAV1/UH052EAV1(Basic) Indoor Unit 29.5kg 29.5kg Outdoor Unit 38.5kg 38.
The Comparative Specifications of Product(cont.) Item NS071CDXEA/RC071DHXEA DH070EAV1/UH070EAV2(Basic) Indoor Unit 33.0kg 33.0kg Outdoor Unit 54.5kg 54.
2-4 Accessory and Specifications Item Descriptions Code-No.
3.
3-1 Indoor Unit Stop operation of the air conditioner and remove the power cord before repairing the unit. ■ NS035/052/071LDXEA No Parts 1 Filter Procedure Remark 1) Pull out the Filter as picture 1 or picture 2. 2) If it is necessary, after disassembling 8 indicating screws, detach the Bracket Filter.
No Parts Procedure Remark 3) If the Cabinet-Top Motor is assembled on the side of the set, the procedure of disassembling the Filter is just as the above. 2 Blower & Motor 1) After disassembling 13 indicating screws, detach Ass’y Cabinet-Top Motor. 2) After disassembling 3 indicating screws, detach Ass’y Case Blower Upper. – Press the pothook of the Case Blower and detach Ass’y Case Blower Upper.
No Parts Procedure Remark 3) After disassembling 2 indicating screws, detach the Cover Control. 4) Detach the Motor Wire Connected to PCB and Capacitor. 5) After disassembling the indicating screws, detach the wire connected to the Partition. 6) After disassembling 2 indicating screws, detach the Ass’y Band Motor.
No Parts Procedure Remark 7) After disassembling the Motor and Blowers, detach the Blowers from the axis of the Motor by 3mm inner hexagon spanner. 3 Drain Pan 1) After disassembling 15 indicating screws, detach Ass’y Cabinet-Top Evap. 2) After disassembling 6 indicating screws, detach the Bracket Outlet. 3) Detach the Drain Pan.
No Parts 4 Evaporator Procedure Remark 7 After finished the procedures above, detach the Evaporator. 1) After disassembling 2 indicating screws, detach Ass'y Cover Pipe. 2) Detach the Sensor from the Control Box.(including 2 Sensors) 3) After disassembling 2 indicating screws, detach Ass'y Support Evap LF. 4) After disassembling 2 indicating screws, detach Ass'y Support Evap RH.
No Parts Procedure Remark 5) Detach the Evaporator from the set. 5 Control In 7 Detach the parts of Control In after disassembling the Cover Control. 1) Detach all the wires connected to the PCB. 2) If only the disassembly of PCB required, press the Pothook and detach the PCB from the set. 3) If only the disassembly of Capacitor is required, detach it from the set. 4) If only the disassembly of Case Control is required, detach it from the set after disassembling 2 indicating screws.
No Parts Procedure Remark 5) Detach the Transformer after disassembling 2 indicating screws. 7 Work is possible after disassembling the Case PCB. 6 3-8 Ass’y Bracket Outlet 1) After disassembling 16 indicating screws, detach Ass’y Bracket Outlet.
■ NS052/071SDXEA No Parts 1 Blower & Motor Procedure Remark 1) After disassembling 16 places indicating screws, detach Ass'y Cabi Bottom Blower. 2) Detach from Ass'y Control In the capacitor connection wire between the Motor Fan and housing connector. 3) After disassembling 2 places indicating screws, detach the 2 Fan Case.
No Parts Procedure Remark 4) After disassembling 2 places indicating screws, detach Fan Motor and Blower from the set. 2 Control In 1) After disassembling 1 Indicating screw, detach the Cover control. 2) Detach the Motor-Fan and Sensor Connector from the PCB.
No Parts Procedure Remark 3) Disassemble 4 indicating screws and detach Control In from the set. 3 Drain Pan Work is possible when Disassembling the Ass'y Cabi Bottom Blower. 1) Disassemble 7 indicating screws and detach Ass'y Cabi Bottom Drain.
No Parts Procedure Remark 2) Disassemble 4 indicating screws and detach the Drain Pan. (2 screws each at left and right side) 4 Evap Work is possible when Disassembling the Ass'y Drain Pan. 1) Disassemble 5 indicating screws to detach Cover Pipe.
No Parts Procedure Remark 2) Disassemble Sensor on the Evap. 3) Disassemble 4 indicating screws which are in the near of Hanger Plate to detach the Evap. (2 screws each at left and right side) It needs 2 peoples.
3-2 Outdoor Unit ■ RC071DHXEA No Parts Procedure 1 Common Work 1) Loosen 1 fixing screw of the Cover-Control and detach the Cover Control. Remark 2) Loosen each 7 fixing screws and detach the Cabinet Upper.
No Parts Procedure Remark 3) Loosen 2 screws fixed to assemble Control Box with Cabinet-Side RH. 4) Loosen fixing screws and detach the Cabinet-Side RH. 5) Loosen 2 screws fixed on the Guide Condenser.
No Parts Procedure Remark 6) Loosen fixing screws of the Cabinet Front.
No Parts Procedure 3 ASS'Y Control Out 1) Detach several connectors from the ASS'Y Control Out. 2) Detach several connectors from the PCB of ASS'Y Control Out. 3) Pull up the ASS'Y Control Out. 4 Heat Exchanger 1) Release the refrigerant at first. 2) Loosen fixing screw on both sides. 3) Disassemble the pipes in both inlet and outlet with welding torch. 4) Detach the Heat Exchanger. Remark 5) Loosen 4 bolts fixed to assemble Valve Service with Bracket Valve like the picture on the right side.
No Parts 2 Fan & Motor Procedure Remark 1) Detach the Nut Flange like the picture on the right side. (Turn counter clockwise because the screw is right-handed.) 2) Detach the Fan Propeller. 3) Loosen 4 fixing screws to detach the Motor. 4) Disconnect the wire between ASS'Y Control Out and Motor. 5) Loosen 2 fixing bolts and detach the Bracket Motor.
No Parts 5 Compressor Procedure Remark 1) Loosen the fixing nut and detach the Compressor Lead Wire. 2) Disassemble the Felt Compressor Sound. 3) Loosen the 3 bolts at the bottom of Compressor like the picture on the right side.
Q RC026DHXEA/ RC035DHXEA/ RC052DHXEA No Parts Procedure 1 common work 1) loosen 1 pcs screw of cover control,and detach it. Remark 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.
No Parts common work Procedure Remark 4) loosen 7 screws to disassemble the cabiright ,and detach it. 5) loosen 2 screws to disassemble steel-bar. 6) loosen 3 screws to disassemble cabi-left.
No Parts Procedure 2 fan&motor 1) loosen 1 screw as indication and detached the fan. Remark 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.
No Parts 3 assy control out 1) lossen fixing 1 screw from cover -control 2) detach several connections from assy control out, take out assy control out. 4 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.
No Parts 5 compressor Procedure Remark 1) disconnect the compressor lead wire . 2)disassembly the felt comp sound.
4. Troubleshooting 4-1 Indoor Display Error and Check Method Q Error detection and reoperation X If error occurs during the operation, badness is indicated by LED flickering and all operation is stopped except LED. X When reoperating by remote control and switch determine the error mode after normal operation.
Q Wired Remocon Error Display t If an error occurs, is displayed on the wired remote controller. t If you would like to see an error code, press the Test button. Display Explanation Indoor unit Communication Error Remark Communication Error Indoor/Outdoor unit Communication Time Out Error 60 Packet Over data Indoor unit is not connected Communication Error between Outdoor Main and Inverter Micom (Occurred after 1 minute detection in Main and Inverter) Indoor Temp.
Display Explanation [Inverter] Heatsink temperature over Error Remark Outdoor Unit Protetion Control Error Outdoor unit Capacity Setup option error Communication error between Indoor unit and wired remote control Wired remote control error Communication error between Master and Slave wired remote control COM1/COM2 Cross-installed error Error of setting option for wired remote control COM2 Samsung Electronics 4-3
4-2 Outdoor Unit Error Display If an error occurs during the operation, it is displayed on the outdoor unit PCB LED, both MAIN PCB and INVERTER PCB. No. Error Code Meaning Remarks 1 E201 Unit quantity miss matching between indoor and outdoor. Check indoor quantity setting in outdoor (Refer to page 17.) 2 E202 Abnormal state, no communication between Indoor and Outdoor Main PCB Check electrical connection and setting 3 E203 1min.
4-3 Setting Option Setup Method 4-3-1 Type A (Setting Option) Option No. : Step 1 : Enter the Option Setup mode. 1st Take out the batteries of remote control. 2nd Press the temperature insert the battery again. button simultaneously and 3rd Make sure the remocon display shown as . Step 2 : Enter the Option Setup mode and select your option according to the following procedure. 1 The default value is . Otherwise, push the button to .
7 1 Press button, then the default value is . 8 Push the 7 button to set the display panel to . Every time you push the button, the display panel reads 8 ➡ 9 ➡... ➡ ➡ ➡ ➡ ➡ ➡ ➡ ➡ repeatedly. 9 Push the 10 button to set the display panel to . Every time you push the button, the display panel reads ➡ ➡... ➡ ➡ ➡ ➡ ➡ ➡ ➡ ➡ repeatedly. 11 10 12 Push the button to set the display panel to . Every time you push the button, the display panel reads ➡ ➡...
4-3-2 Type B( Setting Option Setup Method) Operation method Applicable button Indicating state K Step 1 Method) ① Remove the battery of remote controller. ② Push the Off Timer and Cancel button simultaneously. ③Insert the battery. Result) When the display of remote controller is indicated as shown in the right, then go to the step 2. K Step 2 Method) If the first digit of remote controller shows "0", go to the step 3. t *G JU TIPXT QSFTT UIF .
Operation method Applicable button Indicating state KStep 4 Method) Input the third digit of option code by pressing the Low Temp button. example) 021E311422852A311439421F Result) If 1 is displayed, go to the step 5. K Step 5 Method) Input the fourth digit of option code by pressing the High Fan button. example) 021E311422852A311439421F Result) If E displays, go to step 6. K Step 6 Method) Input the fifth digit of option code by pressing the On Timer button.
Operation method Applicable button Indicating state K Step 7 Method) Input the sixth digit by pressing the Cancel button. example) 021E311422852A311439421F Result) If 1 displays, go to step 8. K Step 8 Method) After completion up to step 7, pressing Mode button. ① 1~7 steps are saved internally. ② If the first number is 1 at the time, it is correct. So go to step 9. t *G XBOUJOH UP TFF UIF TDSFFO of 2~7 steps, press the mode button repeatedly to make the first digit 0.
Operation method Applicable button Indicating state K Step 10 Method) Input the ninth digit by pressing the Low Temp button. example) 021E311422852A311439421F Result) If 2 displays, go to step 11. KStep 11 Method) Input the tenth digit by pressing the High Fan button. example) 021E311422852A311439421F Result) If 2 displays, go to step 12. KStep 12 Method) Input the 11st digit by pressing the On Timer button. example) 021E311422852A311439421F Result) If 8 displays, go to step 13.
Operation method Applicable button Indicating state K Step 13 Method) Input the 12th digit by pressing the Cancel button. example) 021E311422852A311439421F Result) If 5 displays, go to step 14. K Step 14 Error Method) ① If the On/Off, Timer and Fan After completion up to step 13, pressing indicator is flickering, the wrong option Mode button. code is input. Put off the power of indoor unit and turn it on again and ① Previous steps are saved internally.
Operation method Applicable button Indicating state K Step 15 Method) Input the 14th digit by pressing the High Temp button. example) 021E311422852A311439421F Result) If A displays, go to step 16. K Step 16 Method) Input the 15th digit by pressing the Low Temp button. example) 021E311422852A311439421F Result) If 3 displays, go to step 17. K Step 17 Method) Input the 16th digit by pressing the High Fan button. example) 021E311422852A311439421F Result) If 1 displays, go to step 18.
Operation method Applicable button Indicating state K Step 18 Method) Input the 17th digit by pressing the On Timer button. example) 021E311422852A311439421F Result) If 1 displays, go to step 19. Y Step 19 Method) Input the 18th digit by pressing the Cancel button. example) 021E311422852A311439421F Result) If 4 displays, go to step 20. K Step 20 Method) After completion up to step 20, pressing Mode button. ① Previous steps are saved internally. ② If the first number is 3 of the time, it is correct.
Operation method Applicable button Indicating state K Step 21 Method) Input the 20th digit by pressing the High Temp button. example) 021E311422852A311439421F Result) If 9 displays, go to step 22. K Step 22 Method) Input the 21th digit by pressing the Low Temp button. example) 021E311422852A311439421F Result) If 4 displays, go to step 23. Y Step 23 Method) Input the 22th digit by pressing the High Fan button. example) 021E311422852A311439421F Result) If 2 displays, go to step 24.
Operation method Applicable button Indicating state K Step 24 Method) Input the 23th digit by pressing the On Timer button. example) 021E311422852A311439421F Result) If 1 displays, go to step 25. K Step 25 Method) Input the 24th digit by pressing the Cancel button. example) 021E311422852A311439421F Result) If F displays, go to step 26. K Step 26 Method) Turn the remote controller toward the indoor unit and press the Power button, and if the "Ting" or "Tiriring" sounds, the input of option is completed.
Operation method Applicable button K Step 27 Error ① If the On/Off, Timer and Fan indicator is flickering, the wrong option code is input. Put off the power of indoor unit and turn it on again and then input the option code again. If the same error occurs, it is the EEPROM is defective or not inserted. Replace the PCB. Method) If the steps 1 to 26 are completed, remove the battery and insert it again to return to the original display of remote controller. (Operation mode/SET TEMP. /fan speed displays.
4-3-3 Setting an indoor unit address and installation option ▶ Set the indoor unit address and installation option with remote controller option. Set the each option separately since you cannot set the ADDRESS setting and indoor unit installation setting option at the same time.You need to set twice when setting indoor unit address and installation option. ▶ Please use the proper wireless remocon which can set 24 digit option code.
4-3-3-2 The procedure of setting option Option setting 1. Setting SEG2, SEG3 option Press Low Fan button(∨) to enter SEG2 value. Press High Fan button(∧) to enter SEG3 value. … Each time you press the button, will be selected in rotation. Status SEG2 SEG3 SEG4 SEG5 SEG6 SEG8 SEG9 SEG10 SEG11 SEG12 SEG14 SEG15 2. Setting Cool mode Press Mode button to be changed to Cool mode in the ON status. 3. Setting SEG4, SEG5 option Press Low Fan button(∨) to enter SEG4 value.
The procedure of setting option (cont.) Option setting Status 12. Setting Cool mode Press Mode button to be change to Cool mode in the OFF status. 13. Setting SEG16, SEG17 option Press Low Fan button(∨) to enter SEG16 value. Press High Fan button(∧) to enter SEG17 value. … will be selected in rotation. Each time you press the button, SEG16 SEG17 SEG18 SEG20 SEG21 SEG22 SEG23 SEG24 14. Setting Dry mode Press Mode button to be change to Dry mode in the OFF status. 15.
4-3-3-3 Setting an indoor unit address (MAIN/RMC) 1. Check whether power is supplied or not. - When the indoor unit is not plugged in, there should be additional power supply in the indoor unit. 2. The panel(display ) should be connected to an indoor unit to receive option. 3. Before installing the indoor unit, assign an address to the indoor unit according to the air conditioning system plan. 4. Assign an indoor unit address by wireless remote controller.
4-3-3-4 Setting an indoor unit installation option (suitable for the condition of each installation location) 1. Check whether power is supplied or not. - When the indoor unit is not plugged in, there should be additional power supply in the indoor unit. 2. The panel(display ) should be connected to an indoor unit to receive option. 3. Set the installation option according to the installation condition of an air conditioner.
Option SEG19 SEG20 Individual control of Explanation PAGE a remote controller Indication Details Indication Details 0 or 1 Indoor 1 2 Indoor 2 3 Indoor 3 Indication and Details SEG21 SEG22 RESERVED RESERVED 3 4 Indoor 4 SEG23 Motion detect sensor Indication Details SEG24 0.No Use (Factory Setting) 1.Standard Mode/Auto Set OFF30 Min. 2.Standard Mode/Auto Set OFF60 Min. 3.Standard Mode/Auto Set OFF 120 Min. 4.Standard Mode/Auto Set OFF 180 Min. 5.Premium Mode/ Auto Set OFF30 Min.6.
■ OPTION ITEMS Model Option Code NS052SDXEA 011014-1963A2-27343C-370010 020000-100000-200000-300000 03443D-103F44-2443D3-3F4400 NS071SDXEA 014077-1660C8-274750-370000 NS035LDXEA 011037-1361DB-272328-370010 020000-100000-200000-300000 034F46-104C52-24F464-3C5200 NS052LDXEA 011014-1563E6-27343C-370010 020000-100000-200000-300000 034644-104049-246444-304900 NS071LDXEA 014077-1560D9-274750-370000 X If you are going to use up to SEG 24, please refer to following instruction.
4-4 Items to be checked first 1. The input voltage should be rating voltage ±10% range. The air conditioner may not operate properly if the voltage is out of this range. 2. Is the link cable linking the indoor unit and the outdoor unit linked properly? The indoor unit and the outdoor unit shall be linked by 4 cables. Check the terminals if the indoor unit and outdoor unit are properly linked by the same number of cables. Otherwise the air conditioner may not operate properly. 3.
4-5 Fault Diagnosis by Symptom 4-5-1 No Power(completely dead) - Initial diagnosis 1. Checklist: 1) Is Power source voltage normal? 2) Is AC power linked correctly?( miss-wiring, wire detaching etc. ) 3) Is any LED on the MAIN PCB of Outdoor unit lit? 4) Is terminal voltage for indoor unit normal?(230Vac nominal) 5) Is Wired remote controller installed correctly? 2.
4-5-2 The Outdoor unit Power Supply error 1. Checklist: 1) Are the input power voltage and power connection correct? 2) Is there any Fuse Short of the indoor or outdoor unit? 3) Is any LED lit on both MAIN PCB and INVERTER PCB? 4) Are Reactor wires of the outdoor unit connected correctly? 2.
4-5-3 The Outdoor unit Fan error 1. Checklist: 1) Are the input power voltage and power connection correct? 2) Is the motor wire connected to the outdoor PCB correctly? 3) Is there no obstacle at the surrounding of motor and propeller? 4) Does the driver in the motor case broken? 2.
4-5-4 Total current trip error 1. Checklist : 1) Is the input power voltage proper? 2) Is the refrigerant charged properly? 3) Does the compressor rotate normally?(Reverse rotation, Locking etc.) 4) Does the outdoor fan operate normally?(Fan propeller loss, Motor error ect.) 5) Is the installation condition of outdoor unit good?(Piping, Space etc.) 6) Is there no ventilation obstruction at the surrounding of outdoor unit?(Outdoor unit cover, Fan front obstruction etc.
4-5-5 In case of heating at the cooling mode or cooling at the heating mode 1. Troubleshooting procedure Is the Thermo off? Yes Change the setting temperature of remote control. Yes Operate it with a heating mode as soon as the defrosting is finished. Yes After 3 minutes, cooling and heating start automatically.
In case of heating at the cooling mode or cooling at the heating mode(cont.) From the previous page Does the EEV operate normally? No No Is much frost in the heat exchanger? Connect the connector. Yes Check the resistance value of EEV coil. NG EEV coil error OK Yes Is much frost in the heat exchanger? No Exchange the out PCB.
4-5-6 Outdoor temperature sensor error 1. Checklist : 1) Is the sensor connector connected correctly? 2) Is the sensor placed correctly? 3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature? 4) Is the resistance value of sensor connection pull_up correct? 2. Troubleshooting procedure Is the sensor connector connected correctly in accordance with a color? Reconnect the sensor connector.
4-5-7 Discharge temperature sensor error 1. Checklist : 1) Is the sensor connector connected correctly? 2) Is the sensor placed correctly? 3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature? 4) Is the resistance value of sensor connection pull_up correct? 2. Troubleshooting procedure Is the sensor connector connected correctly in accordance with a color? Reconnect the sensor connector.
4-5-8 Coil temperature sensor error 1. Checklist : 1) Is the sensor connector connected correctly? 2) Is the sensor placed correctly? 3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature? 4) Is the resistance value of sensor connection pull_up correct? 2. Troubleshooting procedure Is the sensor connector connected correctly in accordance with a color? Reconnect the sensor connector.
4-5-9 Fan error 1. Checklist : 1) Isn’t the fan locked? 2) Is the sensor placed correctly? 3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature? 4) Is the resistance value of sensor connection pull_up correct? 2. Troubleshooting procedure Remove the Fan lock. Isn't the Fan locked? Yes Is the connector connected correctly? No No Connect the connector. Yes No Is the color of Fan wire matched correctly? No Exchange the Fan. Yes Exchange the PCB.
4-5-10 DC-Link voltage sensor error 1. Checklist : 1) Is the connection of R, S, T power wire normal? 2) Are Relay RY21 and R200 on the INVERTER PCB mounted normally? 2.
4-5-11 O.C.(Over Current) error 1. Checklist : 1) Is the refrigerant charged properly? 2) Does the compressor rotate normally?(Reverse rotation, Locking etc.) 3) Is connection of compressor wire normal? 4) Is compressor motor normal?(Insulation, Coil resistance etc.) 5) Does a temporary cycle overload condition happened? 2.
4-5-12 Communication error 1. Checklist : 1) Is the communication cable between the indoor unit and outdoor unit connected correctly? 2) Isn’t the power cable and communication cable wiring error? 2. Troubleshooting procedure Restart after power off. Is the communication error occurred again? No Terminate the service. Yes Isn't the power cable and communication cable wiring error? No Correct the wrong wiring.
4-5-13 Compressor start error 1. Checklist : 1) Is the connection of cable for the compressor and power? 2) Is the interphase resistance of compressor normal? 2. Troubleshooting procedure Restart after power off. Is the restart error occurred again? No Terminate the service. Yes Is the interphase resistance value of compressor(ulv, vlw, wlu) normal? No Exchange the compressor. Yes Is the compressor body and interphase resistance insulated? No Exchange the compressor.
4-5-14 Compressor lock error 1. Checklist : 1) Is the connection of cable for the compressor and power? 2) Is the interphase resistance of compressor normal? 2. Troubleshooting procedure Restart after power off. Is the lock error occurred again? No Terminate the service. Yes Is the interphase resistance value of compressor(ulv, vlw, wlu) normal? No Exchange the compressor. Yes Is the compressor body and interphase resistance insulated? No Exchange the compressor.
4-5-15 DC Link Over voltage/ Low voltage error 1. Checklist : 1) Is the power voltage normal?(Lightning, Power interruption etc.) 2) Is AC Power cable connection normal?(Detaching the wire) 2.
4-5-16 The others 1. Capacity miss match – Check again the indoor unit option code. 4-6 PCB Inspection Method 4-6-1 Pre-inspection Notices 1. Turn off the breaker, AC power source, before disassembling the unit because of electrical hazard. 2. Confirm the complete discharge of capacitor C102, C702, C703, C704, C705, C706, C707 on the INVERTER PCB when you touch the PCB.Especially dischargeing speed of C702-C707 is very slow because of little load in stand-by condition.
4-6-4 Outdoor Detailed Inspection Procedure No Procedure Inspection Method Cause 1 Turn OFF the power and check wire and socket connection on each part Wait until C702-C707 discharged 1) Is connection of housing to socket normal? 2) Is connection of each wire to terminal block normal? 3) Is the reactor wire connection normal? 4) Is there no miss-wiring of each cable? t JOTUBMMBUJPO NJTUBLF t NJTT BTTFNCMJOH 2 FUSE check Is the fuses on each PCB normal? 3 fuese on EMI PCB 1 fuse on MAIN PCB 1 fuse
4-7 Main Part Inspection Method Part Indoor Unit Temperature Sensor Indoor Unit BLDC FAN Motor Breakdown Inspection Method Measure sensor resistance with a multimeter Normal At the normal temperature 37kΩ~8.3kΩ(-7˚C~+30˚C) Abnormal ∞,0Ω...
5.
■ 5-2 OUTDOOR MAIN PCB 1 2 3 4 5 6 7 8 9 10 11 1 OLP /COND THERMISTOR CONNECTOR SMAW250A-04 WHT 2 OUT/DISCHARGE THERMISTOR CONNECTOR SMAW250A-04 RE 3 BLDC-FAN CONNETCOR YAN396-06V WHT 4 EEV-A CONNECTOR SMAW250A-05 RED 5 DISPLAY CONNECTOR SMW200-10 NTR 6 DISPLAY CONNECTOR SMAW250A-03 RED 7 PC DOWNLOADCONNECTOR SMW200-10 BLK 8 S NE T CONNECTOR SMW200-04 NTR 9 AS-PRO DOWNLOAD CONNECTOR SMAW200A-07 WHT 10 DISPLAY CONNE CTORS MW200-05 NTR 11 DOWNLOAD-INV CONNECTOR S MW20
■ 5-3 OUTDOOR SUB PCB 1 2 1 12V POWER CONNECTOR YW396-02V BLU 2 MAIN -SUB SIGNAL CONNECTOT SMW250-04 WHT 3 MAIN -SUB SIGNAL CONNECTOT SMW200-15NTR 3 This Document can not be used without Samsung’s authorization.
6. Wiring Diagram ■ 6-1 Indoor Unit This Document can not be used without Samsung’s authorization.
■ 6-2 Outdoor Unit Q Outdoor Unit :RC035DHXEA/ RC052DHXEA This Document can not be used without Samsung’s authorization.
Q Outdoor Unit : RC071DHXEA This Document can not be used without Samsung’s authorization.
7.Schematic Diagram 7-1 Indoor Unit ■ MAIN PCB *OEPPS -PBE 1BSU )FBUFS 7FOUJMBUPS %SBJO 1VNQ )PU $PJM *OEPPS 'BO 1BSU 5"1 *OEPPS 'BO 1BSU 443 %JTQMBZ 1BSU $PNNVOJDBUJPO 1BSU "EESFTT 4 8 0QUJPO 4 8 5FNQFSBUVSF 4FOTPS 1BSU 3PPN 5FNQFSBUVSF 1JQF *O 5FNQFSBUVSF 1JQF 0VU 5FNQFSBUVSF )FBUFS %JTDIBSHF 5FNQFSBUVSF &YUFSOBM $POUSPM 1BSU &&7 $POUSPM 1BSU 8JSFE 3FNPUF $POUSPMMFS 1BSU 7 This Document can not be used without Samsung’s authorization.
7-2 OUTDOOR UNIT PCB 7-2 -1 MAIN PCB (RC071DHXEA) This Document can not be used without Samsung’s authorization.
7-2 OUTDOOR UNIT PCB 7-2-2 SUB PCB (RC071DHXEA) This Document can not be used without Samsung’s authorization.
7-2 OUTDOOR UNIT PCB 7-2-3 MAIN PCB (RC035/052DHXEA) This Document can not be used without Samsung’s authorization.
7-2 OUTDOOR UNIT PCB 7-2-4 SUB PCB (RC035/052DHXEA) This Document can not be used without Samsung’s authorization.
8.
8-2 Index of Model Name Ountdoor Unit Model Code RC 140 D (1) (2) (3) (4) H X E A (5) (6) (7) (8) (I)Product Type DVM J FJM C 1 SINGLE(CAC) (2)Capacity Normal N H/P 115V,60Hz A MINI 4 WAY E H/P+HEATER 220V,60Hz B 4 4WAY G C/O+HEATER 208~230V,60Hz C H T TROPICAL C/O 200~220V,50Hz D TROPICAL H/P 220~240V,50Hz E 208~230V,60Hz,3Φ F L D Inverter DLX CEILING S Inverter DLX J CONSOLE F CST Q DUCT 380~415V,50Hz,3Φ G 127V, 50Hz M 380V/60Hz,3Φ H 460V
GSPN(Global Service Partner Network) Area Web Site Europe http://gspn1.samsungcsportal.com CIS http://gspn1.samsungcsportal.com Mideast & Africa http://gspn1.samsungcsportal.com Asia http://gspn2.samsungcsportal.com North America http://gspn3.samsungcsportal.com Latin America http://gspn3.samsungcsportal.com China http://china.samsungportal.com This Service Manual is a property of Samsung Electronics Co., Ltd.
