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AIR CONDITIONER

CONTENTS

SYSTEM AIR CONDITIONER

1.  Precautions

2.  Product Specifications

3.  Disassembly and Reassembly

4.  Troubleshooting

5.  PCB Diagram

6.  Wiring Diagram

7.  Reference Sheet

AC026JNNCEH

AC035JNNCEH

AC026JXSCEH
AC035JXSCEH

Model :

AC026JNNCEH

AC035JNNCEH

AC026JXSCEH

AC035JXSCEH

Indoor Unit                Outdoor Unit

Model Code  : AC026JNNCEH/EU

AC035JNNCEH/EU

AC026JXSCEH/EU

AC035JXSCEH/EU

Summary of Contents for AC026JNNCEH

Page 1: ...Disassembly and Reassembly 4 Troubleshooting 5 PCB Diagram 6 Wiring Diagram 7 Reference Sheet AC026JNNCEH AC035JNNCEH AC026JXSCEH AC035JXSCEH Model AC026JNNCEH AC035JNNCEH AC026JXSCEH AC035JXSCEH IndoorUnit OutdoorUnit Model Code AC026JNNCEH EU AC035JNNCEH EU AC026JXSCEH EU AC035JXSCEH EU ...

Page 2: ...ndoorunitinstallationoption suitablefortheconditionof eachinstallationlocation 4 5 4 1 4 Changing a particular option 4 7 4 1 5 Option code for each model 4 8 4 2 Items to check before diagnostics 4 9 4 2 1 Four directions cassette type 4 9 4 2 2 Test run mode and View mode 4 10 4 2 3 ECO mode Power save 4 11 4 2 4 Troubleshooting for outdoor unit 4 12 4 2 5 Wired remote controller 4 13 4 3 Troubl...

Page 3: ...d 4 37 4 4 12 DC_link voltage sensor error 4 38 4 4 13 Current sensor error Input current sensor error 4 39 4 4 14 Heatsink sensor error Heatsink over heat 4 40 4 4 15 Comp Vlimit error Comp current limit error 4 41 4 4 16 EEPROM error OTP error 4 42 4 4 17 AC zero cross signal error 4 43 4 4 18 Operation condition secession error 4 44 4 4 19 Capacity miss match error 4 45 4 4 20 Gas leak error 4 ...

Page 4: ...aused by tracking or short circuit Fasten the valve caps of service valves and charging valves of outdoor unit as much as possible using adjustable wrenches Check the status of the components assembly after repair service The status must be the same as before the repair service 1 2 Precautions related to static electricity and PL The PCB power supply block is susceptible to static electricity Ther...

Page 5: ...k Instruct end users to separate the batteries from the remote controllers and store them separately when the product is not used for long time Otherwise leakage from the dry cell may cause problems with the remote controller 1 4 Other precautions The pipes should have no leaks during installation and the compressor must be stopped before removing connecting pipes for pump down work Operating the ...

Page 6: ...invertertechnology itmakesaroomcoolwithhighlyenergysavingandarisestheefficiencyofairconditioner Long Ambient Operation In Low Temperature Itcanarisethereliabilityandthecapacityoftheairconditioner especiallyoperatedinlowtemperature Eco friendly Product Lead Free RoHS WEEE Easy installation of ultra lightweight indoor unit 2 Product Specifications 2 1 The Feature of Product ...

Page 7: ...Consumption Cooling STD W 640 940 Heating STD W 830 1180 Operation current Cooling STD A 3 1 4 4 Heating STD A 3 9 5 4 Noise Cooling Heating Indoor unit In case of strongest air blow dBA 38 39 41 42 Outdoor unit In case of strongest air blow dBA 52 52 54 54 Refrigerant R410A g 1270 1270 Connecting Pipe Liquid mm 6 35 6 35 Gas mm 9 52 9 52 Additional Refrigerant R410A g m Standard m 5 5 Extension l...

Page 8: ... 11028A 1 Seal drain ass y DB62 11028H 1 Seal drain ass y DB62 11028J 1 USER MANUAL INSTALLATION MANUAL DB68 05396A DB68 05398A 1 INSTALLATION MANUAL DB68 05400A 1 Essential Offer Outdoor Unit Drain Plug DB67 20011A 1 Rubber Leg DB73 20134A 4 BOLT 6011 003975 4 Essential Offer Panel ASSY INSTALLATION MANUAL DB98 34364A 1 CARD WARRNATY DB68 02596B 1 2 3 Accessories ...

Page 9: ...Samsung Electronics 3 1 Item Remarks SCREW DRIVER Adjustable Wrench 8mm 10mm 13mm M6 M8 Hex Wrench Necessary Tools 3 Disassembly and Reassembly ...

Page 10: ...he front grille to prevent it from dropping 2 Detach the safity clip and take up the grille 3 Remove the 2 fixed screws to remove the Control Box Cover Use Screw Driver 4 Remove the Remocon Receiver and Blade Connector Wire from the PBA 3EA 5 Push the 4 panel corners and cover downwards to remove it 3 1 Indoor unit AC026JNNCEH AC035JNNCEH ...

Page 11: ...the Hangers at both sides of the panel inwards to remove it from the indoor unit s hook Remove the panel from the indoor unit 2 Control Box 1 Disconnect the Connector Wire that is connected to the indoor unit s 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 ...

Page 12: ...crew fixed on the Bell Mouth Use Screw Driver 2 Push the Bell Mouth in the direction opposite to where it s installed on the Control Box to remove it 4 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 ...

Page 13: ...se from the Drain Pump Use Screw Driver 2 Remove the 2 screws and take the Drain Hose out from the indoor unit to disassemble the transparent Drain Hose fixed on the side of the indoor unit Use Screw Driver 6 Evap Temperature Sensor 1 Use your hand to remove the temperature sensor attached to the Evap Pipe along with the fixing clip ...

Page 14: ...ngular nuts on the Motor counterclockwise to remove the nuts Take the Motor Wires attached to these three locations out with your hands prior to removing the Motor 8 Evaporator 1 Remove the screws of the 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 Driv...

Page 15: ...ectronics 3 7 No 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 ...

Page 16: ...s Procedure Remark 1 common work 1 loosen 1 pcs screw of cover control and detach it 2 loosen 5 pcs screws on both right and left cabniet side edges and to detach the cover top 3 Loosen 7 screwsfixed to disassemble cabi front and detach it 3 2 Outdoor unit ...

Page 17: ...ung Electronics 3 9 No Parts Procedure Remark common work 4 loosen 7 screws to disassemble the cabi right and detach it 5 loosen 2 screws to disassemble steel bar 6 loosen 3 screws to disassemble cabi left ...

Page 18: ... No Parts Procedure Remark 2 fan motor 1 loosen 1 screw as indication and detached the fan 2 loosen 4 pcs motor screws and disconnect the wire betwwen assy control out and motor 3 loosen 2 pcs bracket motor screw and detach it ...

Page 19: ... screw from cover control 2 detach several connections from assy con trol 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 ...

Page 20: ...3 12 Samsung Electronics No Parts Procedure Remark 5 compressor 1 disconnect the compressor lead wire 2 disassembly the felt comp sound loosen the 3 bolts at the bottom of ...

Page 21: ...EG23 24 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 Following is the instruc...

Page 22: ...ess the button will be selected in rotation 6 Setting Fan mode Press Mode button to be changed to FAN mode in the ON status 7 Setting SEG9 SEG10 option Press Low Fan button to enter SEG9 value Press High Fan button to enter SEG10 value Each time you press the button will be selected in rotation 8 Setting Heat mode Press Mode button to be changed to HEAT mode in the ON status 9 Setting SEG11 SEG12 ...

Page 23: ...e you press the button will be selected in rotation 18 Setting Heat mode 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 SEG16 SEG18 SEG21 SEG23 SEG17 SEG20 SEG22 SEG24 Step 4 Input option Press operation button w...

Page 24: ...tial setting will be maintained 4 1 2 Setting an indoor unit address MAIN RMC When A F isenteredtoSEG5 6 theindoorunitMAINADDRESSisnotchanged IfyousettheSEG3as0 theindoorunitwillmaintainthepreviousMAINADDRESSevenifyouinputtheoptionvalueofSEG6 IfyousettheSEG9as0 theindoorunitwillmaintainpreviousRMCADDRESSevenifyouinputtheoptionvalueofSEG11 12 Option No 0AXXXX 1XXXXX 2XXXXX 3XXXXX Option SEG1 SEG2 S...

Page 25: ...onditionofeachinstallationlocation Option No 02XXXX 1XXXXX 2XXXXX 3XXXXX Option SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 Explanation PAGE MODE RESERVED Useofexternal temperaturesensor Use of central control RPM setting compensation Indication and Details Indication Details Indication Details Indication Details Indication Details 0 Notused 1 Highceilingmode 2 Highceilingkit 3 Lownoiseoperationmode 0 2 0 Disus...

Page 26: ... 5 PremiumMode AutoSetOFF30 Min 6 PremiumMode AutoSetOFF60Min 7 PremiumMode Auto SetOFF120Min 8 PremiumMode Auto SetOFF180Min 2 Indoor 2 3 Indoor 3 4 Indoor 4 If you input a number other than 0 4 on the individual control of the indoor unit SEG 20 the indoor is set as Indoor 1 Example If you want to set as Exterior temperature sensor USE External control USE Number of hours using filer 2000hr SEG1...

Page 27: ...Unitdigit ofSEG 0 9 The changed value 0 F When changing a digit of an indoor unit address setting option set the SEG3 as A When changing a digit of indoor unit installation option set the SEG3 as 2 Ex When setting the buzzer control into disuse status Option SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 Explanation PAGE MODE The option mode you want to change Thetens digitof anoptionSEG youwillchange The unit dig...

Page 28: ...temperature sensor Check outdoor temperature sensor connection Check outdoor temperature sensor s resistance value to see if it s short open operation off operation off operation off X X No communication for 2 minutes between indoor and outdoor unit communication error for more than 2 minutes Check connection between indoor and outdoor unit communication cables operation off operation off operatio...

Page 29: ...2 Three digits Two digits One digit Hz 3 Number of indoor heat exchangers 3 Three digits Two digits One digit Hz 4 Out sensor 4 Two digits One digit First decimal C 5 Discharge sensor 5 Two digits One digit First decimal C 6 OLP sensor 6 Two digits One digit First decimal C 7 Cond sensor 7 Two digits One digit First decimal C 8 Current 8 Two digits One digit First decimal C 9 Fan RPM 9 Three digit...

Page 30: ... Electronics 4 11 4 2 3 ECO mode Power save Mode Display ECO mode lamp Segment 1 Segment 2 Segment 3 Segment 4 RED color ECO mode BLANK BLANK BLANK BLANK On Exit ECO mode Press K3 to exit Off ECO mode lamp RED ...

Page 31: ...E416 Discharge temperature of a compressor in an outdoor unit is overheated 11 E440 Heating operation is not available since the outdoor air tempera ture is over 30 C Heating E441 Cooling operation is not available since the outdoor air tempera ture is lower than 5 C Cooling 12 E458 Outdoor unit BLDC Fan 1 or Fan 2 error FAN1 error E475 FAN2 error 13 E461 Comp Starting error 14 E462 Primary Curren...

Page 32: ...unication error 1 min Check the communication connection between indoor and outdoor units Check the power line and communication cable connection status Operation Off Communication error Communication error between indoor outdoor INV MAIN MICOM 1 min Check MAIN MICOM Check INVERTER MICOM Communication error Outdoor temperature sensor error Check sensor connection status Check sensor location Check...

Page 33: ... Outdoor unit protection control error AC ZERO CROSSING SIGNAL OUT error Check the input power status Operation Off Outdoor unit protection control error Compressor LOCK error Check the compressor connection status Check the resistance between difference phases of the compressor Operation Off Outdoor unit protection control error Outdoor fan 2 error Check the input power connection status Check th...

Page 34: ...or disconnected from the connector in PCB Restart the system after replacing the PCB Restart the system after connecting to the PCB connector Indoor temperature sensor failure replace Remove the indoor temperature sensor connector from the PCB and measure the resistance between two terminals 4 3 Troubleshooting by symptoms 4 3 1 Indoor temperature sensor open short Current temperature C Resistance...

Page 35: ...ture sensor replace Remove the indoor heat exchanger temperature sensor connector from the PCB and measure the resistance between two terminals Indoor unit display Operation Defrost X Timer X Filter Symptom Short or open circuit of indoor heat exchanger temperature sensor Failure Short or open circuit in the corresponding sensor 4 3 2 Indoor heat exchanger temperature sensor open short Current tem...

Page 36: ...ailure Check if the motor connector is disconnected check the motor fan assembly status 4 3 3 Indoor FAN error Yes No Yes Is there foreign substance stuck in the motor fan Yes Is the motor connector disconnected from the PCB Replace the PCB and restart the unit Connect the connector to PCB and restart the unit Remove the foreign substance and restart the unit ...

Page 37: ...is the voltage waveform between the lines square wave with amplitude over 0 7V as shown in the following picture 0 7V 0 7V Good Bad Check the communication cable and replace the indoor unit PCB Remove the communication cable connecting the outdoor unit to indoor unit and measure the signal on LINE 2 of the outdoor unit with a scope Reconnect the cable connecting the outdoor unit to the indoor unit...

Page 38: ...n circuit Is the water level in the drain pan high Does drain pump operate when compressor operates Same error occurs again No Drain pump PCB Is the terminal voltage around AC 220V Is the water level in drain pan decreasing Reset the indoor unit power and check the operation of the drain pump it vibrates when operating Normal operation Replace the indoor unit PCB Reassemble the floating sensor con...

Page 39: ... Timer X Filter Symptom EEPROM circuit failure Failure EEPROM component failure EEPROM circuit parts missing damaged soldering failure 4 3 6 EEPROM circuit failure No Yes Are the EEPROM circuit components in good conditions missing components damage soldering failure Replace the PCB if the restart fails ...

Page 40: ...ler connected correctly 2 Check procedure Yes Turn off the main power switch circuit break of power outlet and turn on again after 30 seconds Check the input power No Is the outdoor unit power supply L N 220V Yes Check the connection of the terminal block No Is the outdoor unit power voltage L N 220V Yes Replace the inverter PBA No Is the voltage between the terminal 2 and 4 of the bridge diode 22...

Page 41: ...4 22 Samsung Electronics Yes Outdoor unit is not powered on Initial diagnosis cont Yes Connect the reactor No Is the reactor connector connected correctly Replace the PBA Cont ...

Page 42: ...rocedure Yes Restart after power off Terminate the service Exchange the indoor unit PBA No Is the communication error occurred again Yes Correct the wrong cable No Is the connection of power cable and communication cable normal Yes Exchange the PBA of no power unit No Is the power is normal check the LED Lamp Yes Yes Terminate the service No Is the communication error occurred again Exchange the o...

Page 43: ...oubleshooting procedure PF2 Yes Reconnect the sensor connector Micom error or connector check No Is the sensor resistance value 1 2 10kohm 3 at the room temperature of 25 C Is the sensor connector CN251 connected correctly in accordance with a color BLU 6PIN Sensor Replace Sensor resistance value 20 C 12 09kohm 30 C 8 31kohm 35 C 6 94kohm 40 C 5 83kohm No No Exchange the PBA of no power unit Yes B...

Page 44: ...ture of 25 C Is the sensor connector CN502 connected correctly in accordance with a colorRED 4PIN Sensor Replace Sensor resistance value 20 C 12 09kohm 30 C 8 31kohm 35 C 6 94kohm 40 C 5 83kohm No No Exchange the PBA of no Ourdoor PBA Yes Below 0 5V or Over 4 5V Yes Connect the sensor to PBA connector 4pin supply power and measure the voltage of 1 2 in the connector Exchange the Outdoor PBA Yes ...

Page 45: ...procedure PF2 Yes Reconnect the sensor connector Micom error or connector check No Is the sensor resistance value 5 6 10kohm 3 at the room temperature of 25 C Is the sensor connector CN251 connected correctly in accordance with a color BLU 6PIN Sensor Replace Sensor resistance value 20 C 12 09kohm 30 C 8 31kohm 35 C 6 94kohm 40 C 5 83kohm No No Exchange the Outdoor PBA Yes Below 0 5V or Over 4 5V ...

Page 46: ...emperature of 25 25 C Is the sensor connector CN501 connected correctly in accordance with a colorRED 4PIN Sensor Replace Sensor resistance value 20 C 12 09kohm 30 C 8 31kohm 35 C 6 94kohm 40 C 5 83kohm No No Exchange the Outdoor PBA Yes Below 0 5V or Over 4 5V Yes Connect the sensor to PBA connector 4pin supply power and measure the voltage of 3 4 in the connector Exchange the Outdoor PBA Yes ...

Page 47: ...oting procedure PF2 Yes Reconnect the sensor connector Micom error or connector check No Is the sensor resistance value 3 4 10kohm 3 at the room temperature of 25 C Is the sensor connector CN251 connected correctly in accordance with a color BLU 6PIN Sensor Replace Sensor resistance value 20 C 242kohm 30 C 166ohm 35 C 138ohm 40 C 115kohm No No Exchange the Outdoor PBA Yes Below 0 5V or Over 4 5V Y...

Page 48: ...m error or connector check No Is the sensor resistance value 3 4 CN501 10kohm 3 at the room temperature of 25 25 C Is the sensor connector CN502 connected correctly in accordance with a colorRED 4PIN No No Exchange the Outdoor PBA Yes Below 0 5V or Over 4 5V Yes Connect the sensor to PBA connector 4pin supply power and measure the voltage of 3 4 in the connector Exchange the Outdoor PBA Yes ...

Page 49: ...e the Outdoor PBA Download the EEPROM data No Is the discharge over temperature sensor error appeared again Terminate the service No No Terminate the service Is the discharge over temperature sensor error appeared again Is the discharge over temperature sensor error appeared again The condition is too poor for air conditioner to operate Wait until discharge temperature is decreased Restart after p...

Page 50: ...d Separate the Fan motor wire from CN901 on Outdoor PBA PBA problem or Motor problem Change the PBA first and check the operation No Yes Does the fan rotate Terminate the service Exchange the Fan motor No No No Follow the check procedure of outdoor unit power supply error check Exchange the Outdoor PBA Is the fan error appeared again Is there short among each pin 1 6 Is the voltage of CN901 3 5 an...

Page 51: ...pressor normal 2 Troubleshooting procedure Terminate the service Download the EEPROM data No Is the restart error occurred again Is the connection of compressor wire is normal Connect the comp wire normally No No No Yes Terminate the service Exchange the Outdoor PBA Is the restart error occurred again Is the compressor body and interphase resistance insulated Exchanged the Compressor Restart after...

Page 52: ...tance of compressor normal 2 Troubleshooting procedure Terminate the service No Is the restart error occurred again Is the connection of compressor wire is normal PBA and Compressor Connect the comp wire normally No No No Yes Terminate the service Exchange the Outdoor PBA Is the restart error occurred again Is the compressor body and interphase resistance insulated Exchanged the Compressor Restart...

Page 53: ... error occurred Is the connection of compressor wire is normal No No Yes No No No No No Yes Exchange the Outdoor PBA Correct the sensor position or exchange the sensor Is the O C error occurred again Terminate the service Restart after returning to the normal load Terminate the service Connect the comp wire normally Terminate the service Is the restart error occurred again Is the condition of indo...

Page 54: ...04 R005 R006 R007 value is normal Outdoor PBA 2 Troubleshooting procedure Connect the reactor wire No Is the connected of reactor wire PBA Reactor Is the DC_link voltage CE101 or CE001 is normal in operation mode Normal range 280Vdc 320Vdc Check the power input No No No No Exchange the Outdoor PBA Exchange the Outdoor PBA IstheDC_linksensingvoltage R104orR004 isnormalin operationmode Normalrange 0...

Page 55: ...04 R005 R006 R007 value is normal Outdoor PBA 2 Troubleshooting procedure Connect the reactor wire No Is the connected of reactor wire PBA Reactor Is the DC_link voltage CE101 or CE001 is normal in operation mode Normal range 280Vdc 320Vdc Check the power input No No No No Exchange the Outdoor PBA Exchange the Outdoor PBA IstheDC_linksensingvoltage R104orR004 isnormalin operationmode Normalrange 0...

Page 56: ...ormal Outdoor PBA 2 Troubleshooting procedure Connect the reactor wire No Is the connected of reactor wire PBA Reactor Is the the input voltage is nomal Normal range 180Vac 270Vac Is the reactor insulation damaged Check the input power in the powercord No No No No Check the input power Exchange the Outdoor PBA Exchange the Outdoor PBA Is theDC_linkvoltage CE101orCE001 isnormalinoperation mode Norm...

Page 57: ...error 4 Is the interphase resistance of compressor normal 2 Troubleshooting procedure Restart after returning to the normal load No Yes Is the condition of indoor outdoor temperature normal load Is the I_trip error occurred again Terminate the service No No No No Correct the sensor position or exchange the sensor Correct the cable connection Isthepositionoftemperaturesensorandthesensingvalue norma...

Page 58: ...the IPM Shunt PF2 R451 R452 R453 PF23 R413 R414 R415 resistance value correct Check the resistor is opened 3 Is there no short or open around IC451 PF2 or IC451 IC452 PF3 2 Troubleshooting procedure Exchange the Outdoor PBA No Is the PFC shunt and IPM shunt resistance value correct No Terminate the service Isthecurrentsensorerrorappearedagain Exchange the Outdoor PBA Restart after power off Yes Ye...

Page 59: ...2 Is the gap PBA heatsink 3 Is the fan operation normal 4 Is the cover assembly in conrol box normal 2 Troubleshooting procedure Fastening the screw No Are there screws in PBA heatsink 4 screws No Check the fan connection Change the Fan motor Is the fan operation normal Exchange the Outdoor PBA Restart after power off Yes Yes Yes ...

Page 60: ...rminate the service Exchange the Outdoor PBA No No Yes IIs the O C error occurred Is the O C error occurred again Terminate the service No No No No No No Connect the comp wire normally Terminate the service Correct the sensor position or exchange the sensor Restart after returning to the normal load Is the connection of compressor wire is normal Is the O C error occurred again Is the condition of ...

Page 61: ...ere a short around IC202 PF2 or IC701 PF3 3 Did you download or insert EEPROM IC after changing outdoor PBA 2 Troubleshooting procedure Terminate the service No Restart after power off Is the error appeared again Exchange the Outdoor PBA power off and download EEPROM data or Insert the service EEPROM IC Yes ...

Page 62: ...ist 1 Check the power condition at customer s house Is there any power noise 2 Have been there power failure 2 Troubleshooting procedure Terminate the service No Is the AC line zero cross signal error appeared again Exchange the Outdoor PBA Restart after power off Yes ...

Page 63: ...2 Troubleshooting procedure Terminate the service No Is the operation condition secession error appeared again Heating mode Is the outdoor temperature over 40 C or under 30 C Cooling mode Is the outdoor temperature under C Thetemperatureconditionistoopoortooperate Wait until temperature is changed Restart after power off Yes Yes ...

Page 64: ...rocedure Exchange the one of them according to the exact model spec Terminate the service Terminate the service No No No Is the capacity miss match error appeared again Is the capacity miss match error appeared again Is the rated Btu between indoor unit and outdoor unit Download the EEPROM data Exchange the Outdoor PBA Exchange the Indoor PBA Reset the option code again at indoor unit Yes Yes Yes ...

Page 65: ...heck the pipe crack Fill up the refrigerant No No Is the position of indoor eva_in sensor normal No No No Terminate the service Change the EEV valve Connect the EEV valve Is the gas leak error appeared again Is the EEV valve connection normal Is the EEV valve is operation Check the sound of EEV valve after power on Is the pressure of refrigerant normal Exchange the Indoor PBA Exchange the Outdoor ...

Page 66: ... message pop up Set seg23 to 1 8 digit Replace wire of MDS Connect wire of MDS Replace MDS Kit Replace Main PBA Start End Yes Yes Yes Yes Yes MDS Function only can be set in wired remote controller or central controller Error Message Error message will be appeared after 3minutes Wired remote controller E143 message is pop up Display Panel Operation filter LED is blinking at the same time after ind...

Page 67: ...Samsung Electronics 5 1 5 PCB Diagram and Parts List 5 1 Indoor Unit 5 1 1 MAIN PCB 22 1 2 3 4 5 7 8 9 10 11 6 12 13 15 16 17 18 19 20 14 21 23 ...

Page 68: ...2_D 10 COM2_TXD 11 COM2_RXD 12 GND 1 DC12V 2 VENTILATOR SIGNAL OUTPUT GND 1 DC12V 2 HUMAN SENSING SENSOR COMM TXD 3 HUMAN SENSING SENSOR COMM RXD 4 GND 1 INDOOR THERMISTOR 2 GND 1 4 EEV SIGNAL OUTPUT 5 DC12V 6 DC12V 1 DC12V 2 5 LOUVERSIGNALOUTPUT 1 DC12V 2 5 LOUVERSIGNALOUTPUT 6 DC12V 7 10 LOUVERSIGNALOUTPUT 1 DC12V 2 5 LOUVER SIGNAL OUTPUT 1 GND 2 GND 3 SPI SIGNAL OUTPUT DC12V 1 POWER L 2 POWER N...

Page 69: ...Samsung Electronics 5 3 1 DC 12V 2 5 LED control signal 6 Remocon signal out 7 8 Not used 9 Remocon signal IN 10 GND 11 DC 5V CN01 DISPLAY 5 1 2 Panel PCB 1 ...

Page 70: ...EACTOR DBT081 2PWHT 4 BLDCFAN YW396 06VWHT 5 COMM YW396 02VRED 6 SUBPBAPOWER SMW200 05PBLK 7 EEVA SMW250 05RED 8 COMP DBT061 3PWHT 9 SMPS SMW250 03BLU 10 EEPROM B7P MQWHT 11 TEMPSENSOR SMW200 08PWHT 12 MAINDOWNLOAD YDW200 20BLK 13 SUBPBA SMW200 10PBLK 14 DRED SMW250 05WHT 15 INVDOWNDOWN YDAW200 20TRBLK 16 SUBPBA SMW200 10PWHT 17 ENABLECGND SMW250 03RED 18 EEVB SUBPBA SMW250 05YEL ...

Page 71: ...Samsung Electronics 6 1 6 Wiring Diagram 6 1 Indoor Unit This Document can not be used without Samsung s authorization ...

Page 72: ...6 2 Samsung Electronics This Document can not be used without Samsung s authorization 6 2 Outdoor Unit ...

Page 73: ... General Temp N Non Inv Side Low Temp R Non Inv Side Tropical Temp Z Non Inv Top Tropical Temp U UNITED STATUS DUCT K DVM PLUS4 V DVM Inverter L DVM SLIM G DVM GHP M DVM MINI W DVM WATER C DVM GEO GEOTHERMAL D DVM PLUS3 X DVM PLUS2 J FREE JOINT MULTI P PACK MULTI H DVM HOME E SINGLE T MULTI Y MONO ProductType Indoor Code Type F FLAGSHIP P PREMIUM D DELUXE S STANDARD F CASCADE G CASCADE EEV E MULTI...

Page 74: ...on P Panel ProductType C CST Product classification 1N Standard 1 way CST 1B Large size 1 way 2N 2 WAY 4N 4 WAY 4S MINI 4 WAY 4R Round Panel version 1 2 Korean market use A B Export foreign market use Color B Black E WINE U White V Ivory Language K Korean C Chinese M 8 Languages E English TYPE A Automatic boarding slide S STANDARD H PREMIUM Global 4 Way Panel Pattern Waffle Stripe Korean market us...

Page 75: ...liquid to gas Absorbing heat required for evaporation SERVICE VALVE 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 ov...

Page 76: ...utdoor C 5 0 10 0 15 0 20 0 0 0 5 0 10 0 15 0 20 0 20 10 0 10 20 30 40 50 32 2 3 27 1 32 23 27 19 21 15 Outdoor Temp C WaitingMode Pressure kgf cm G S Waiting Mode 32 23 27 19 21 15 50 18 5 16 7 15 9 35 15 7 14 7 13 4 20 15 2 14 3 13 6 7 9 1 9 1 9 1 5 5 6 5 6 5 6 20 3 0 3 0 3 0 Indoor C Outdoor C 15 0 20 0 25 0 30 0 35 0 20 10 0 10 20 32 2 3 27 1 28 18 27 19 20 15 Outdoor Temp C Heating Pressure k...

Page 77: ...al is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law Samsung Electronics Co Ltd Mar 2015 Printed in China Code No DB68 00000A 1 ...

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