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Samsung AC052FBMDEH/EU, Service Manual

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Samsung AC052FBMDEH/EU Service Manual Download Page 62

Samsung Electronics

4-22

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

Yes

Yes

Yes

Yes

Restart after power off

Is the communication erroroccurred again?

Isn't the power cable andcommunication 

cable wiring error?

Is the connection of communication cable normal?

Is insuration resistance between each compressor 

terminal and body normal?

Exchange the outdoor unit PCB

Terminate the service

Correct the wrong wiring

Correct the compressor wire connection

Correct the connection of communication cable

No

No

No

No

Summary of Contents for AC052FBMDEH/EU

Page 1: ...H EU AC052FCADEH EU AC071FCADEH EU AC090FCADEH EU AC100FCADEH EU AC100FCADGH EU INDOOR UNIT OUTDOOR UNIT 1 Precautions 2 Product Specifications 3 Disassembly and Reassembly 4 Troubleshooting 5 PCB Diagram 6 Wiring Diagram 7 Schematic Diagram 8 Reference Sheet AC052FBMDEH EU AC071FBMDEH EU AC090FBMDEH EU AC100FBMDEH EU AC090FCADEH EU AC100FCADEH EU AC100FCADGH EU AC052FCADEH EU AC071FCADEH EU ...

Page 2: ...COM2 4 2 4 2 Outdoor LED Error Display and Check Method 4 3 4 3 Setting Option Setup Method 4 4 4 4 Items to be checked first 4 9 4 5 Fault Diagnosis by Symptom 4 10 4 5 1 No Power completely dead Initial diagnosis 4 10 4 5 2 The Outdoor unit Power Supply error 4 11 4 5 3 The Outdoor unit Fan error 4 12 4 5 4 Total current trip error 4 13 4 5 5 In case of heating at the cooling mode or cooling at ...

Page 3: ...Outdoor Detailed Inspection Procedure 4 27 4 7 Main Part Inspection Method 4 28 1 15 PCB Diagram 5 1 5 1 PCB Diagram 5 1 5 1 1 Indoor Unit 5 1 5 1 2 Outdoor Unit PCB 5 4 16 Wiring Diagram 6 1 6 1 Indoor Unit 6 1 6 2 Outdoor Unit 6 2 17 Schematic Diagram 7 1 7 1 Indoor Unit 7 1 7 1 1 MAIN PCB 7 1 7 1 2 Outdoor Unit PCB 7 3 1 8 Reference Sheet 8 1 8 1 Index for Model Name 8 1 8 2 Refrigerating Cycle...

Page 4: ...used by tracking or short circuit O Fasten the valve caps of service valves and charging valves of outdoor unit as much as possible using adjustable wrenches O 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 O The PCB power supply block is susceptible to static electricity...

Page 5: ...hock O 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 O The pipes should have no leaks during installation and the compressor must be stopped before removing connecting pipes for pump down work Operati...

Page 6: ...LDC 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 Q Long Ambient Operation In Low Temperature It can arise the reliability and the capacity of the air conditioner especially operated in low temperature Q Eco friendl...

Page 7: ...0 Power Consumption Cooling STD W 1560 2210 Heating STD W 1660 2220 Operation current Cooling STD A 7 5 10 5 Heating STD A 7 8 10 5 Sound Power Cooling Heating Indoor In case of strongest air blow dBa 60 65 Outdoor In case of strongest air blow dBa 64 66 Refrigerant R410A g 1400 1800 Connecting Pipe Liquid mm 1 4 1 4 Gas mm 1 2 5 8 Additional Refrigernat R410A g m 10 25 Standard m 5 5 Extension le...

Page 8: ...onsumption Cooling STD W 2800 3215 Heating STD W 2770 3100 Operation current Cooling STD A 13 0 15 2 5 4 Heating STD A 12 5 13 5 5 2 Sound Power Cooling Heating Indoor In case of strongest air blow A 65 65 65 Outdoor In case of strongest air blow A 67 68 68 Refrigerant R410A g 3000 3000 3100 Connecting Pipe Liquid mm 3 8 3 8 3 8 Gas mm 5 8 5 8 5 8 Additional Refrigernat R410A g m 50 50 50 Standard...

Page 9: ...L USO MANUAL DE INSTRU ÍES MANUEL D UTILISATION GEBRAUCHSANWEISUNG Splut type Room Air Conditioner Aire acondicionado domĿstico sistema Split Condizionatore d aria per ambienti ad unitˆ Separate Aparelho de ar condicionado tipo Split Climatiseur de type sĿparĿ Geteilte raumklimaanlag e OWNER S INSTRUCTIONS MANUAL DE INSTRUCCIONES ISTRUZIONI PER L USO MANUAL DE INSTRU ÍES MANUEL D UTILISATION GEBRA...

Page 10: ... 2S 4x12 Tapped Screw 2 User s manual DB98 05160A 1 Installation manual DB98 05186A 1 Wire kit DB39 00223A MRW 10A 1 Receiver display unit DB93 01066A MRK A00 1 Standard type M4x12 Tapped Screw 7 Cable tie 2 User s manual DB98 04184A 1 Installation manual DB98 04189A 1 Wire kit DB39 00223A MRW 10A 1 Accessories cont Receiver display unit Wire kit ...

Page 11: ...ontroller DB97 14333C MWR WH02 1 Optional Cable tie DB65 10088B 2 Cable clamp DB65 10074E 5 M4 16 Tapped Screw 6002 000474 7 Indoor unit power drawing cable DB39 00221A 1 Communication cable of thewired remote controller DB39 00933A 1 Wire joint DB39 90020A 1 User s manual DB98 25179A 1 Installation manual DB98 25180A 1 ...

Page 12: ...ed controller Item Descriptions Code No Q TY Remark Centralized controller DB93 03425C MCM A202 1 Optional Cable tie DB65 10088B 2 Cable clamp DB65 10074E 5 M4x16 Tapped Screw 6002 000474 7 User s manual DB98 12721A 1 Installation manual DB98 25773A 1 ...

Page 13: ...100 1 Optional Cable tie DB65 10088B 2 Cable clamp DB65 10074E 6 M4x16 Tapped Screw 6002 000474 7 User s manual DB98 27317A 1 Installation manual DB98 27315A 1 Transmitter Item Descriptions Code No Q TY Remark Transmitter DB97 00647P MIM B04A 1 Optional Transmitter power cable DB39 00378D 1 Transmitter communication cable DB39 00253D 1 ...

Page 14: ...ement Server Item Descriptions Code No Q TY Remark DMS DB93 03709B MIM D00 1 Optional Cable tie DB65 10088B 2 Cable clamp DB65 10074D 2 M4x16 Tapped Screw 6002 000474 5 Bottom hook DB73 00320A 4 User s manual DB98 27317A 1 Installation manual DB98 27315A 1 ...

Page 15: ...3 1 Samsung Electronics Item Remarks SCREW DRIVER Adjustable Wrench 8mm 10mm 13mm Q Necessary Tools 3 Disassembly and Reassembly ...

Page 16: ... Motor 1 After disassembling 16 places indicating screws detach Ass y Cabi Bottom Blower Use Screw Driver 2 Detach the Motor Fan connector from the BLDC PCB 3 After disassembling 2 places indicating screws detach the 2 Fan Case Use Screw Driver 3 1 Indoor unit ...

Page 17: ...mark 4 After disassembling 2 places indicating screws detach Fan Motor and Blower from the set 2 Control In 1 After disassembling 3 Indicating screw detach the Cover control Use Screw Driver 2 Detach the Motor Fan and Sensor Connector from the PCB ...

Page 18: ...s 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 ...

Page 19: ...k 1 Disassemble 4 indicating screws and detach the Drain Pan Use Screw Driver 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 Use Screw Driver ...

Page 20: ... 3 6 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 Use Screw Driver 2screwseachatleftandrightside It needs 2 peoples ...

Page 21: ...rocedure 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 22: ...ung Electronics 3 8 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 23: ...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 24: ... 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 25: ...3 11 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 26: ...g Electronics 3 12 Q AC071FCADEH EU No Parts Procedure Remark 1 Common Work 1 Loosen 1 fixing screw of the Cover Control and detach the Cover Control 2 Loosen each 7 fixing screws and detach the Cabinet Upper ...

Page 27: ...ung Electronics 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 ...

Page 28: ...Samsung Electronics 3 14 No Parts Procedure Remark 6 Loosen fixing screws of the Cabinet Front ...

Page 29: ...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 ...

Page 30: ...s 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 5 Loosen 4 bolts fixed to assemble Valve Service with Bracket Valve like the picture on the right side ...

Page 31: ...s No Parts Procedure Remark 5 Compressor 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 ...

Page 32: ... 1 Unscrew and remove two mounting screw in the Cabinet Front RH Use Screw Driver 2 Cabi Top 1 Unscrew and remove 9 screws on each side of the Cabinet Top Use Screw Driver 3 Cabi Install Front 1 Unscrew and remove 1 screw in the Cabinet Install Front Use Screw Driver N AC090FCADEH EU AC100FCADEH EU AC100FCADGH EU ...

Page 33: ...ark 4 Guard Cond 1 Pull the sensor from Guard Cond 2 Unscrew and remove 4 screws in the Guard Cond Use Screw Driver 5 Cabi Back RH 1 Pull the sensor from Cabi Back RH 2 Unscrew and remove 4 screws on each side of the Cabinet Back RH Use Screw Driver ...

Page 34: ...nics 3 20 No Parts Procedure Remark 6 Cabi Install Back 1 Unscrew and remove 1 screw in the Cabinet Install Back Use Screw Driver 7 Cabi Front LF 1 Unscrew and remove 10 screws in the Cabinet Front LF Use Screw Driver ...

Page 35: ...3 21 Samsung Electronics No Parts Procedure Remark 8 Fan 1 Turn 2 mounting nuts as shown in the picture and remove it Use Adjustable Wrench ...

Page 36: ...mark 9 Motor 1 Separate the Fan Propeller 2 Unscrew and remove the 4 Motor mounting screws Use Screw Driver 3 Disconnect the Motor wire From Ass y Control Out 10 Bracket Motor 1 Unscrew and remove 2 mounting screws in Bracket Motor Use Screw Driver ...

Page 37: ...amsung Electronics No Parts Procedure Remark 11 Control Out 1 Disconnect 4 Connecters From Ass y Control Out 2 Unscrew and remove 1 mounting screw in Control Out Use Screw Driver 3 Separate Ass y Control Out ...

Page 38: ... remove 2mounting screws in muffler 3 Unscrew and remove 2 mounting screws in Service Valve Use Screw Driver 4 Separate the pipe from the Entrance Exit using a welder When removing the compressor Heat Exchanger and Pipe purge the Coolant inside the Compressor completely and remove the pipe with a welding flame ...

Page 39: ... 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 14 Compressor 1 Unscrew and remove 1 mounting nut in Cover Terminal Use Adjustable Wrench 2 Separate the Compressor Felt Sound ...

Page 40: ...ure Remark 3 As shown in the picture unscrew and remove 3 mounting screws from the bottom Use Adjustable Wrench 15 Cond Out 1 Unscrew and remove 3 screws on each side of the Assy Cond Out Use Screw Driver 2 Separate the Compressor Felt Sound ...

Page 41: ... outdoor temperature sensorError of the condensor temperature sensor Error of the discharge temperature sensorPower reset X X X 1 No communication for 2 minutes between indoor units Communication error for more than 2 minutes 2 Indoor unit receiving the communication error from outdoor unit 3 Outdoor unit tracking 3 minutes error 4 When sending the communication error from the outdoor unit the mis...

Page 42: ...emp sensor Error Open Short Error Power cable miss connection error Indoor Float Switch 2nd Detection Self Diagnosys Error Outdoor unit indoor unit communication wire miss connection Connected to Power terminal Outdoor unit refrigerant Full leakage Gas leak Outdoor Fan 1 Error Outdoor Fan 2 Error Discharge over temperature Outdoor UnitProtetion Control Error Inverter Compressor starting error Prim...

Page 43: ...mperature sensor error 9 z Discharge over temperature 10 Discharge temperature sensor error 11 z Current sensor error 12 z Compressor Limit error 13 z Coil temperature sensor error 14 z z 1min Time out Communication 15 z Fan error 16 z OTP error 17 z z Compressor rotation error 18 z Operation condition secession 19 z DC Link voltage sensor error 20 z z I_Trip error 21 z z GAS Leak error 22 z z Pow...

Page 44: ...menu will display Press the button to enter the indoor unit option code mode 2 Press the button to change the page You can change the page from 0 to 3 3 Press the buttons and the button to set the option code in order 4 Press the button to save the changed setting You will move to the menu selection display t The first digit represents the page number and the remaining five digits are option codes...

Page 45: ...notation of currently set indoor unit will be displayed 3 Press the buttons and the button to set the indoor unit Main Group Address 4 Press the button Wired remote controller sends data to an indoor unit 5 Press the button to exit You will move to the menu selection display Indoor unit RMC address In order to check and set the indoor unit Main Group Address using the wired remote controller hold ...

Page 46: ...r 0 1 2 3 Page number DIP OPTION CODE In order to check and set the indoor unit DIP option code using the wired remote controller hold down the and buttons at the same time for 5 seconds SGE1 SGE2 SGE3 SGE4 SGE5 SGE6 0 2 RESERVED Exterior temperature sensor Central control RESERVED SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 1 Drain pump HOT COIL RESERVED RESERVED Master Slave SEG13 SEG14 SEG15 SEG16 SEG17 S...

Page 47: ... Indication Details Indication Details Indication Details Indication Details 0 2 0 Disuse 0 Disuse 1 Use 1 Use Option SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 Explanation PAGE Use of drain pump HOT COIL RESERVED RESERVED Master Slave Indication and Details Indication Details Indication Details Indication Details Indication Details 1 0 Disuse 0 Disuse 0 slave 1 Use 1 Use 1 master 2 Use 3minute delay Option...

Page 48: ...0 3 4 1 5 6 1 7 C AC100FCADEH 0 1 1 0 3 4 1 5 6 1 7 C AC100FBMDEH 0 1 1 0 3 4 1 5 6 1 7 C AC100FCADGH 0 1 1 0 3 4 1 5 6 1 7 C Model SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 AC052FBMDEH 2 7 3 4 3 C 3 7 0 0 1 0 AC052FCADEH 2 7 3 4 3 C 3 7 0 0 1 0 AC071FBMDEH 2 7 4 7 5 0 3 7 0 0 1 0 AC071FCADEH 2 7 4 7 5 0 3 7 0 0 1 0 AC090FBMDEH 2 7 5 A 6 4 3 5 0 0 0 0 AC090FCADEH 2 7 ...

Page 49: ...y of 3 minutes when the compressor is reoperated The same phenomenon occurs when a power is on As a phenomenon that the compressor is reoperated after a delay of 3 minutes the indoor fan is adjusted automatically with reference to a temperature of the air blew 2 Compressor stops operation intermittently in DRY mode Compressor operation is controlled automatically in DRY mode depending on the room ...

Page 50: ... 230Vac nominal Check indoor unit terminal block voltage on V1 V2 12Vdc nominal Press the On Off button on the wired remote controller to operate the air conditioner Check DC power voltage of remote controller V1 V2 Check DIP SW in the wired remote controller Is there any error display on the wired remote controller Turn off the breaker and turn it on after 30 seconds Check AC power source Reconne...

Page 51: ...B CN10 INVERTER PCB Is the FUSE on INVERTER PCB blown Is R100 on INVERTER PCB open 200ohm moninal Check INVERTER PCB Are wire and socket connected correctly CN05 06 07 TAB terminal EMI PCB CN20 INVERTER PCB Check and correct the power cable wiring Check and correct the wire or socket connection Check Fuses listed blow FUSE3 EMI PCB FUSE MAIN PCB Correct the cable wiringbetween indoor and outdoor C...

Page 52: ...the Pin voltage 1 3 of CN40 and 41over 250V Is the Pin voltage 5 3 of CN40 and 41 15V Is the Pin voltage 5 3 of CN40 and 41within 1 6V during the operation Is the Fan in rotation during TEST operation in cooling mode Is the Pin voltage 6 3 of CN40 and 41changed high 4 5V and low 0 1V in case ofmaking manual rotation slowly Is the Pin voltage 7 3 of CN40 and 41 low 0 1V in normal rotation Check AC ...

Page 53: ...of outdoor unit Outdoor unit cover Fan front obstruction etc 7 Is there no ventilation obstruction at the surrounding of indoor unit Overload condition in heating mode 2 Troubleshooting procedure Yes Yes Yes Yes Yes Is the installation of outdoor unit good Is the installation of indoor unit good Does the compressor rotate normally Are the service valves full opened Is AC power voltage normal durin...

Page 54: ...changer attachedcorrectly Is the 4 WAY valve connectorconnected correctly Dose thevoltage of AC220V apply to the connector of 4 WAY valve coil during the operation Change the setting temperature of remote control Check Inner wiring of outdoor unit After 3 minutes coolingand heating start automatically Attach the sensor correctly Connect the connecter correctly Over shortage of the refrigerant 4 WA...

Page 55: ... theoutdoor fan connectedcorrectly Is much frostin the heat exchanger Is much frostin the heat exchanger Connect the connector Exchangethe out PCB The over shortage of refrigerant Insufficient Capacity Load estimation error Connect the connector Outdoor fan error Check the motor wire EEV coil error EEV main body error Check the resistance value of EEV coil Check the resistance value of outdoor fan...

Page 56: ...s the sensor connector connectedcorrectly in accordance with a color Is the temperature sensor connectedcorrectly without separation Does the both terminal of sensorsatisfy the resistance value in accordance with temperature Refer to the R T TABLE Is the resistance valueof sensor connection pull_up 18K Reconnect the sensor connector Change the position of sensor Exchange the sensor Exchange the PC...

Page 57: ... the sensor connector connectedcorrectly in accordance with a color Is the temperature sensor connectedcorrectly without separation Does the both terminal of sensorsatisfy the resistance value in accordance with temperature Refer to the R T TABLE Is the resistance valueof sensor connection pull_up 24K Reconnect the sensor connector Change the position of sensor Exchange the sensor Exchange the PCB...

Page 58: ...the sensor connector connectedcorrectly in accordance with a color Is the temperature sensor connectedcorrectly without separation Does the both terminal of sensorsatisfy the resistance value in accordance with temperature Refer to the R T TABLE Is the resistance valueof sensor connection pull_up 18 2K Reconnect the sensor connector Change the position of sensor Exchange the sensor Exchange the PC...

Page 59: ...resistance value in accordance with temperature 4 Is the resistance value of sensor connection pull_up correct 2 Troubleshooting procedure Yes Yes Yes Isn t the Fan locked Is the connector connected correctly Is the color of Fan wire matched correctly Remove the Fan lock Connect the connector Exchange the Fan Exchange the PCB Normal operation Exit No No No ...

Page 60: ...ist 1 Is the connection of R S T power wire normal 2 Are Relay RY21 and R200 on the INVERTER PCB mounted normally 2 Troubleshooting procedure Yes Are connection of the wire from INVERTER PBA to EMI PBA normal Exchange INVERTER PCB Check and correct the wire connection No ...

Page 61: ...on of outdoor unit good Is the installation of indoor unit good Are the service valves full opened Does the compressor wire connected to the compressor normally Is insuration resistance between each compressor terminal and body normal Does the compressor rotate normally Did AC power voltage interruption happen during the compressor in operation Reinstall and remove the obstruction Reinstall and re...

Page 62: ...dure Yes Yes Yes Yes Restart after power off Is the communication erroroccurred again Isn t the power cable andcommunication cable wiring error Is the connection of communication cable normal Is insuration resistance between each compressor terminal and body normal Exchange the outdoor unit PCB Terminate the service Correct the wrong wiring Correct the compressor wire connection Correct the connec...

Page 63: ...ure Yes Yes Yes Yes Restart after power off Is the restart error occurred again Is the interphase resistance value of compressor u v v w w u normal Is the compressor body and interphase resistance insulated Is the connection cable for thecompressor and power terminal normal Exchange the PCB Terminate the service Exchange the compressor Exchange the compressor Correct the cable connection No No No ...

Page 64: ...es Yes Yes Yes Restart after power off Is the lock error occurred again Is the interphase resistance value ofcompressor u v v w w u normal Is the compressor body and interphase resistance insulated Is the connection cable for the compressor and power terminal normal Exchange the outdoor unit PCB Terminate the service Exchange the compressor Exchange the compressor Correct the cable connection No N...

Page 65: ... good Is the connection of reactor terminal good Are the FUSEs on EMI PCB blown Push the center bar of M C and mesure the resis tance of each contact Is each contact resistance normal less than 0 1ohm Does the error reappear frequently The cause of this error may be power source trouble as like power interruption Check the power source Check and reconnecting the reactor wireat the TAB terminal Che...

Page 66: ...ing circuit and DC power supplying circuit Display PCB part LED lamps Switch Remocon module INDOOR EMI PCB part Line filter Noise Capacitor and Varistor 3 The PCB is composed of the 3 part in the outdoor unit EMI PCB part Line filter for electrical noise Varistors for surge and Fuses MAIN PCB part Refrigeration cycle controller with MICOM INVERTER PCB part Compressor driving inverter and BLDC fan ...

Page 67: ... 1 Is RED LED ON 2 Is GREEN LED Blinking once a second 3 Is LEDs displaying error code pattern MAIN PCB power trouble Bad communication between indoor and outdoor unit Error detection 5 Check LED display on INVERTER PCB 1 Is RED LED ON 2 Is GREEN LED Blinking once a second 3 Is LEDs displaying error code pattern INVERTER PCB power trouble NO communication between MAIN and INVERTER PCB Error detect...

Page 68: ...ure terminal resistance with a multimeter Normal At the normal temperature 37kΩ 8 3kΩ 7 C 30 C see 12 2 6 and 12 2 8 Abnormal 0Ω Open or Short Outdoor Unit Discharge Temperature Sensorr Measure terminal resistance with a multimeter Normal At the normal temperature 563kΩ 157kΩ 0 C 30 C see 12 2 7 Abnormal 0Ω Open or Short Outdoor Unit BLDC FAN MOTOR Measure terminal resistance with a multimeter Nor...

Page 69: ...5 1 Samsung Electronics 5 PCB Diagram 5 1 PCB Diagram 5 1 1 Indoor Unit 19 18 15 20 17 16 21 14 22 23 24 25 11 1 2 3 4 9 5 6 7 8 10 12 13 ...

Page 70: ...rature Sensor SMW250 02 YEL Ventilator YW396 03AV BLK Wired Remote Controller Power YW396 02 WHT Drain Pump YW396 03AV YEL External Control S W Part SMW250 02 RED Hot Coil YW396 03AV RED EEV SMW250 05 BLU SMW250 05 BLU Indoor Fan SSR YW396 03AV RED Display SMW200 11 WHT SMW200 11 WHT Power YW396 03AV WHT External Control Display Part SMW250 04 RED Transformer Out YW396 03AV WHT HALL IC SMW250 03 B...

Page 71: ...5 3 Samsung Electronics QPXFS 8 7 6 1 2 3 18 4JHOBM JO 4 8 8 5 8 7 8 5 2 1 3 ...

Page 72: ...OR CONNECTOR S NET CONNECTOR EEV A CONNECTOR OUT DIS COND CONNECTOR DOWNLOAD MAIN CONNECTOR CENTRAL CTL CONNECTOR BLDC FAN CONNECTOR DOWNLOAD INV CONNECTOR COMP CONNECTOR REACTOR CONNECTOR YAW396 03AV WHT SMW200 28C WHT SMW250 02 RED SMAW250 02 WHT SMW200 28C WHT SMAW250 06 RED SMW250 06 BLU SMAW200 10P BLK SMW200 05P WHT YW396 06V WHT SMAW200 10P RED DBT061 3P WHT DBT081 2P WHT ...

Page 73: ... WHT EEV A CONNECTOR SMAW250A 05 RED DISPLAY CONNECTOR SMW200 10 NTR DISPLAY CONNECTOR SMAW250A 03 RED PC DOWNLOADCONNECTOR SMW200 10 BLK S NE T CONNECTOR SMW200 04 NTR AS PRO DOWNLOAD CONNECTOR SMAW200A 07 WHT DISPLAY CONNE CTORS MW200 05 NTR DOWNLOAD INV CONNECTOR S MW200 10 RED 7 6 5 4 3 2 1 8 9 10 11 Outdoor Unit PCB cont MAIN PCB AC071FCADEH EU ...

Page 74: ...ung Electronics Outdoor Unit PCB cont SUB PCB AC052FCADEH EU EVAP THERMISTOR CONNECTOR SMW250 08 WHT EEV B CONNECTOR SMW250 05 YEL DISPLAY MAIN CONNECTOR SMW200 28 WHT 12V POWER CONNECTOR YW396 02AV BLU 4 3 2 1 ...

Page 75: ...Samsung Electronics 5 7 Outdoor Unit PCB cont SUB PCB AC071FCADEH EU 12V POWER CONNECTOR YW396 02V BLU MAIN SUB SIGNAL CONNECTOT SMW250 04 WHT MAIN SUB SIGNAL CONNECTOT SMW200 15NTR 1 2 3 ...

Page 76: ...5 8 Samsung Electronics 1 5 6 2 3 4 15 7 16 9 11 13 8 10 12 14 Outdoor Unit PCB cont MAIN PCB AC090FCADEH EU AC0100FCADEH EU AC100FCADGH EU ...

Page 77: ...Motor signal 5 DC 12V 1 4 Motor signal 5 DC 12V 1 TXD 2 RXD 3 GND 4 DC 5V 5 DC 12V 6 INV SMPS signal 1 Temp signal 2 GND 1 High Pressure temp signal 3 GND 4 DC 5V 1 DC 12V 2 GND 1 COM1 2 COM2 1 DC 12V 2 GND 3 DC 5V 4 COM1 5 COM2 CN11 AC POWER CN74 AC LOAD1 CN75 4WAY V V CN71 AC LOAD2 Option CN37 Micom Download CN82 EEV 2 Option CN42 High Pressure Option CN35 AS PRO CN83 EEV 3 Option CN12 DC12V CN4...

Page 78: ...gnal 1 RXD_ATARO 2 TXD_ATARO 3 8 N C 4 7 DATA signal 9 GND 10 DC 5V For S W engineer debugging 1 DC 360V 2 N C 3 GND 4 DC 15V 5 FAN RPM 6 FAN RPM feedback 1 DC 360V 2 N C 3 GND 4 DC 15V 5 FAN RPM 6 FAN RPM feedback 1 COMP U phase RED 2 COMP V phase BLU 3 COMP U phase YEL 1 2 DCL Reactor RST AC POWER 3phase CN100 AC POWER CN31 MAIN COMM CN22 Downloader CN21 DAC ENCODER CN600 REACTOR CN91 FAN2 CN90 ...

Page 79: ...Samsung Electronics 5 11 Outdoor Unit PCB cont EMI PCB 1Phase AC090FCADEH EU AC0100FCADEH EU L1 BRN N1 SKY BLU 1 3 AC 220 240V L1 AC POWER L phase N1 AC POWER N phase CN01 AC POWER 3 1 2 ...

Page 80: ...5 12 Samsung Electronics Outdoor Unit PCB cont EMI PCB 3Phase AC100FCADGH EU R AC 380 400V WHT S AC 380 400V BRN T AC 380 400V BLK 1 3 AC 220 240V RST AC POWER 3phase CN100 AC POWER 2 1 ...

Page 81: ...Samsung Electronics 6 1 6 Wiring Diagram 6 1 Indoor Unit This Document can not be used without Samsung s authorization ...

Page 82: ...6 2 Samsung Electronics 6 2 Outdoor Unit This Document can not be used without Samsung s authorization Outdoor Unit AC071FCADEH EU ...

Page 83: ...Samsung Electronics 6 3 Outdoor Unit cont This Document can not be used without Samsung s authorization Outdoor Unit AC090FCADEH EU AC100FCADEH EU ...

Page 84: ...6 4 Samsung Electronics Outdoor Unit AC100FCADGH EU Outdoor Unit cont This Document can not be used without Samsung s authorization ...

Page 85: ...Samsung Electronics 6 5 Outdoor Unit AC052FCADEH EU ...

Page 86: ...7 Schematic Diagram 7 1 Indoor Unit 7 1 1 1MAIN PCB Samsung Electronics 7 1 This Document can not be used without Samsung s authorization ...

Page 87: ...Samsung Electronics 7 2 7 1 1 2MAIN PCB ...

Page 88: ...7 4 Samsung Electronics Samsung Electronics 7 5 7 1 2 OUTDOOR UNIT PCB MAIN PCB AC052FCADEH EU This Document can not be used without Samsung s authorization Samsung Electronics 7 3 ...

Page 89: ...7 6 Samsung Electronics Samsung Electronics 7 7 OUTDOOR UNIT PCB cont SUB PCB AC052FCADEH EU This Document can not be used without Samsung s authorization Samsung Electronics 7 2 ...

Page 90: ...7 8 Samsung Electronics Samsung Electronics 7 9 OUTDOOR UNIT PCB cont MAIN PCB AC071FCADEH EU This Document can not be used without Samsung s authorization Samsung Electronics 7 3 ...

Page 91: ...7 10 Samsung Electronics Samsung Electronics 7 11 OUTDOOR UNIT PCB cont MAIN PCB AC071FCADEH EU This Document can not be used without Samsung s authorization Samsung Electronics 7 4 ...

Page 92: ...This Document can not be used without Samsung s authorization Samsung Electronics 7 5 OUTDOOR UNIT PCB cont MAIN PCB AC090FCADEH EU AC100FCADEH EU AC100FCADGH EU ...

Page 93: ...This Document can not be used without Samsung s authorization OUTDOOR UNIT PCB cont Inverter PCB 1Phase I AC090FCADEH EU AC100FCADEH EU Samsung Electronics 7 6 ...

Page 94: ...This Document can not be used without Samsung s authorization OUTDOOR UNIT PCB cont EMI PCB 1Phase AC090FCADEH EU AC100FCADEH EU Samsung Electronics 7 7 ...

Page 95: ...OUTDOOR UNIT PCB cont EMI PCB 3Phase AC100FCADGH EU Samsung Electronics 7 8 ...

Page 96: ...r Code Type A Inv Side General Temp S Inv Side Low Temp Q Inv Side Tropical Temp F Inv Top Tropical Temp B Non Inv Side General Temp N Non Inv Side Low Temp R Non Inv Side Tropical Temp Z Non Inv Top Tropical Temp ProductType Indoor Code Type F FLAGSHIP P PREMIUM D DELUXE S STANDARD ProductType Outdoor Code Type A STANDARD GENERAL Temp MODULE B STANDARD LOW Temp MODULE C STANDARD TROPICAL MODULE D...

Page 97: ...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 98: ...2 20 6 8 6 3 6 4 7 7 6 7 1 6 5 5 7 7 7 2 6 5 Indoor C Outdoor C Outdoor Temp C WaitingMode Pressure kgf cm G 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 Outdoor Temp C Heating Pressure kgf cm G Heating 28 18 27 19 20 15 20 33 6 33 3 30 1 7 27 9 27 23 5 5 24 2 23 9 19 9 20 22 5 22 2 17 9 Indoor C ...

Page 99: ...unished under applicable International and or domestic law Samsung Electronics Co Ltd Sep 2012 Printed in China Code No DB68 03443 1 GSPN address Eurpoe CIS Mideast africa gspn1 samsungcsportal com Asia gspn2 samsungcsportal com North Latin America gspn3 samsungcsportal com China china samsungportal com ...

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