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Samsung MH026FNCA service manual 5-2Outdoor Unit, 5-2-1MH050FXCA2A, 11 12 3 1, 8, 4 2

Models: MH026FNCA

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5-2 Outdoor Unit

5-2 Outdoor Unit

5-2-1 MH050FXCA2A

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Samsung MH026FNCA service manual 5-2Outdoor Unit, 5-2-1MH050FXCA2A, 11 12 3 1, 8, 4 2

Contents

THE FEATURE OF PRODUCT INDOOR UNITConvenient Installation FREE JOINT MULTI AIR CONDITIONERContents 11-1 10-1Contents 9-121-1Installing the air conditioner 1. Precautions1-2Power supply and circuit breaker 1-3During operation1-4Disposing of the unit 1-5OthersSamsung Electronics 2-1The Feature of Product 2. Product SpecificationsConvenient Installation Inverter for High Efficiency OperationModel 2-2Product SpecificationsMH026FNCA ItemSamsung Electronics Product SpecificationscontModel Product SpecificationscontMH026FECA MH035FECASamsung Electronics Product SpecificationscontQFGN :&#$2-3-1Indoor Unit Accessories 2-3Accessory and Option SpecificationsMHFNCA +VGOMHFECA Indoor Unit AccessoriescontItem DescriptionsMHFECAcont Indoor Unit AccessoriescontItem DescriptionsMH050FXCA2A/MH080FXCA4A 2-3-2Outdoor Unit Accessories+VGO &GUETKRVKQPUItem 2-3-3Transmitter Unit AccessoriesNNKNIK@A=J@?DA?GIAPDK@ HECJIAJP=J@@FQOPIAJPO&J@KKN2JEP +PFKECVQTUSamsung Electronics MHFECAMHFECAcont Alignment and AdjustmentsSamsung Electronics 3-1-2Outdoor UnitOutdoor Unitcont 3-2Setting Option Setup Method Step 1 : Enter the Option Setup modeex Option No Alignment and Adjustments Samsung Electronics • Error ModeStep 4 : Pressing the ON/OFF button Step 5 : Unit operation test-runTECHNICAL BULLETIN Option Code Procedure for MH Neo ForteTable of the option code MODELOPTION CODE Necessary Tools 4. Disassembly and ReassemblyItem Remark4-1-1MH026FNCA/MH035FNCA/MH052FNCA 4-1Indoor UnitProcedure RemarkProcedure Samsung ElectronicsRemark Procedure PartsRemark Procedure 4-1-2MH026FECA/MH035FECARemark PartsParts ProcedureUnscrew a screw 6Disassemble the band Motor for fixing the MotorSamsung Electronics ProcedureRemark 1 Disassemble the Cabinet Top EvapProcedure Parts1-3and the Drain Pan 2-1, 2-2, Procedure Samsung ElectronicsParts Disassembly and Reassembly ProcedureParts Disassemble if after disassembling the case PCBProcedure 4-1-3MH052FECASamsung Electronics 4-11Procedure PartsBlower & Motor Samsung Electronics Procedure4-13 PartsDisassembly and Reassembly ProcedureParts Drain PanSamsung Electronics Procedure4-15 Parts1Detach all the wires connected to the PCB ProcedureParts RemarkSamsung Electronics Procedure4-17 Parts4-2-1MH050FXCA2A 4-2Outdoor UnitProcedure RemarkSamsung Electronics Procedure4-19 PartsProcedure RemarkRelease the refrigerant at first Procedure 4-2-2MH080FXCA4ASamsung Electronics 4-21Disassembly and Reassembly ProcedureParts RemarkSamsung Electronics 4-23Remark &J@KKN2JEP TLHK@A@3EASO=J@-=NPOEOP*%#+ *%#+ 5COUWPINGEVTQPKEU 2CTVU.KUV%QFG0Q &GUETKRVKQP5-1-2MH052FNCA 6 7Samsung Electronics 5COUWPINGEVTQPKEU 2CTVU.KUVExploded Views and Parts List 5-1-3MH026FECA/MH035FECA2 17 18 16 19 21Samsung Electronics Parts ListExploded Views and Parts List 5-1-4MH052FECA2 2 8 2 10 9 6Samsung Electronics Parts List5-2-1MH050FXCA2A 5-2Outdoor Unit11 12 3 1 82CTVU.KUV Samsung Electronics5-10 5-2-2MH080FXCA4A 56 10 20 4 13 15 21 14 Parts List Samsung Electronics5-12 6. Wiring Diagram 6-1Indoor UnitMHFNCA %# A &J@KKN2JEPĠ?KJPMH050FXCA2A 6-2Outdoor UnitSamsung Electronics MH080FXCA4A7. Schematic Diagram 7-1Indoor UnitMHFNCA Samsung Electronics MHFECA8. PCB Diagram 8-1MAIN PCBIndoor UnitMHFNCA 02- Ġ&J@KKN2JEP Ġ?KJP MHFNCASamsung Electronics 5 6 7 8 9 0 MHFECA%#5 *%#5 *&+ - Ġ,QP@KKN2JEP2QYGT0 2QYGT9-1Items to be checked first 9. Troubleshooting2. Settings of PCB Display of the Outdoor unit 9-2Checking and Testing operationsReset button Samsung Electronics2.2.Apply the power to the outdoor unit Samsung Electronics In case of MANUAL ADDRESSING mode Switch Setting and Testing OperationSWITCH “SW02 ” Switch Setting and Testing Operation contSamsung Electronics TYPEPlease do cool mode try-runor heat mode try run Switch Setting and Testing Operation contCool mode try-run :Pushthe K2 button three times Heat mode try-run :Pushthe K2 button onceSamsung Electronics Manaul address settingAddress setting another case Auto address settingOperation case Samsung Electronics9-10 Try-runCheck Error 9-3-1Basic Check Flow 9-3Fault Diagnosis by SymptomTroubleshooting Basic Check Flowcont9-13 Samsung ElectronicsSamsung Electronics 9-3-2Checking Outdoor Controller9-14 LED1 Red : ALWAYS ON5.Checking DC voltage on each point 9-3-5Checking Temperature sensor 9-3-4Checking Power cable and Communication cable9-3-3Checking Indoor controller Samsung Electronics-ELAI=P?DEJC DA?GEJC35GGCWNV&KCIPQUKUQH/CLQT2CTVU %WTTGPV8UVGRXCNWGECPOQPKVQTGFYKVJ8+9/1&9-4-1Cautions for Part Replacement 9-4-2Procedure9-4PCB Inspection 10. Reference for Installation 10-1Selecting Area for Installation10-1-1Indoor Unit 10-1-2Outdoor Unit 10-1-3Remote Control UnitSamsung Electronics 10-2MH050FXCA2A 10-2Connecting Up and Purging the CircuitMH080FXCA4A Samsung Electronics10-4 10-3-1MH050FXCA2A 10-3Refrigerant Refill10-3-2MH080FXCA4A Samsung Electronics10-6 %5#5CA*%8#5C4A /ABNECAN=JP@FQOPIAJP10-5Flare Nut Fixing Torque Samsung Electronics10-8 10-6-1MH050FXCA2A 10-6Pump down Procedure10-6-2MH080FXCA4A Samsung Electronics10-10 11-1Index for Model Name 11. Reference InformationFREEJOINTMULTIFOREUROPE 4 A / O O OFREEJOINTMULTIFOREUROPE Index for Model Name cont07 / O O O Product TypeMH050FXCA2A 11-2Refrigerating Cycle Diagram11-3 Samsung ElectronicsSamsung Electronics MH080FXCA4A11-4 Reference Information11-3Pressure & Capacity mark Power/Heat11-5Q & A for Non-trouble Samsung Electronics11-6 Q & A for Non-troublecont Q & A for Non-troublecont Samsung Electronics11-8 11-6-1Air supplier 11-6Common sense of refrigerationAir supplier? Effectiveness of air supplierELECTRONICS GSPNGlobal Service Partner Network