Manuals / Samsung / Household Appliance / Air Conditioner

Samsung MH026FNCA service manual 02- Ġ&J@KKN2JEP Ġ?KJP, Mhfnca, Samsung Electronics

Models: MH026FNCA

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02- Ġ&J@KKN2JEP Ġ?KJP

02- Ġ&J@KKN2JEP Ġ?KJP

■MH✳✳✳FNCA

The red number connecter is not used.

!

@

!External Signal

@MAIN PCB Connection

Samsung Electronics

8-2

Image 68

Samsung MH026FNCA service manual 02- Ġ&J@KKN2JEP Ġ?KJP, Mhfnca, Samsung Electronics

Contents

INDOOR UNIT THE FEATURE OF PRODUCTConvenient Installation FREE JOINT MULTI AIR CONDITIONERContents 10-1 11-1Contents 9-121. Precautions 1-1Installing the air conditioner1-2Power supply and circuit breaker 1-3During operationSamsung Electronics 1-4Disposing of the unit1-5Others 2. Product Specifications 2-1The Feature of ProductConvenient Installation Inverter for High Efficiency Operation2-2Product Specifications ModelMH026FNCA ItemProduct Specificationscont Samsung ElectronicsProduct Specificationscont ModelMH026FECA MH035FECAProduct Specificationscont Samsung ElectronicsQFGN :&#$2-3Accessory and Option Specifications 2-3-1Indoor Unit AccessoriesMHFNCA +VGOIndoor Unit Accessoriescont MHFECAItem DescriptionsIndoor Unit Accessoriescont MHFECAcontItem Descriptions2-3-2Outdoor Unit Accessories MH050FXCA2A/MH080FXCA4A+VGO &GUETKRVKQPU2-3-3Transmitter Unit Accessories ItemHECJIAJP=J@@FQOPIAJPO NNKNIK@A=J@?DA?GIAPDK@&J@KKN2JEP +PFKECVQTUMHFECA Samsung ElectronicsAlignment and Adjustments MHFECAcont3-1-2Outdoor Unit Samsung ElectronicsOutdoor Unitcont ex Option No 3-2Setting Option Setup MethodStep 1 : Enter the Option Setup mode Alignment and Adjustments • Error Mode Samsung ElectronicsStep 4 : Pressing the ON/OFF button Step 5 : Unit operation test-runOption Code Procedure for MH Neo Forte TECHNICAL BULLETINOPTION CODE Table of the option codeMODEL 4. Disassembly and Reassembly Necessary ToolsItem Remark4-1Indoor Unit 4-1-1MH026FNCA/MH035FNCA/MH052FNCAProcedure RemarkRemark ProcedureSamsung Electronics Remark ProcedureParts 4-1-2MH026FECA/MH035FECA ProcedureRemark PartsProcedure PartsUnscrew a screw 6Disassemble the band Motor for fixing the MotorProcedure Samsung ElectronicsRemark 1 Disassemble the Cabinet Top Evap1-3and the Drain Pan 2-1, 2-2, ProcedureParts Parts ProcedureSamsung Electronics Procedure Disassembly and ReassemblyParts Disassemble if after disassembling the case PCB4-1-3MH052FECA ProcedureSamsung Electronics 4-11Blower & Motor ProcedureParts Procedure Samsung Electronics4-13 PartsProcedure Disassembly and ReassemblyParts Drain PanProcedure Samsung Electronics4-15 PartsProcedure 1Detach all the wires connected to the PCBParts RemarkProcedure Samsung Electronics4-17 Parts4-2Outdoor Unit 4-2-1MH050FXCA2AProcedure RemarkProcedure Samsung Electronics4-19 PartsRelease the refrigerant at first ProcedureRemark 4-2-2MH080FXCA4A ProcedureSamsung Electronics 4-21Procedure Disassembly and ReassemblyParts RemarkRemark Samsung Electronics4-23 TLHK@A@3EASO=J@-=NPOEOP &J@KKN2JEP*%#+ *%#+ 2CTVU.KUV 5COUWPINGEVTQPKEU%QFG0Q &GUETKRVKQPSamsung Electronics 5-1-2MH052FNCA6 7 2CTVU.KUV 5COUWPINGEVTQPKEU5-1-3MH026FECA/MH035FECA Exploded Views and Parts List2 17 18 16 19 21Parts List Samsung Electronics5-1-4MH052FECA Exploded Views and Parts List2 2 8 2 10 9 6Parts List Samsung Electronics5-2Outdoor Unit 5-2-1MH050FXCA2A11 12 3 1 85-10 2CTVU.KUVSamsung Electronics 1 14 5-2-2MH080FXCA4A56 10 20 4 13 15 2 5-12 Parts ListSamsung Electronics MHFNCA 6. Wiring Diagram6-1Indoor Unit &J@KKN2JEPĠ?KJP %# A6-2Outdoor Unit MH050FXCA2AMH080FXCA4A Samsung ElectronicsMHFNCA 7. Schematic Diagram7-1Indoor Unit MHFECA Samsung ElectronicsMHFNCA 8. PCB Diagram8-1MAIN PCBIndoor Unit Samsung Electronics 02- Ġ&J@KKN2JEP Ġ?KJPMHFNCA MHFECA 5 6 7 8 9 0*&+ - Ġ,QP@KKN2JEP %#5 *%#5 2QYGT0 2QYGT9. Troubleshooting 9-1Items to be checked first9-2Checking and Testing operations 2. Settings of PCB Display of the Outdoor unitReset button Samsung Electronics2.2.Apply the power to the outdoor unit Samsung Electronics Switch Setting and Testing Operation In case of MANUAL ADDRESSING modeSwitch Setting and Testing Operation cont SWITCH “SW02 ”Samsung Electronics TYPESwitch Setting and Testing Operation cont Please do cool mode try-runor heat mode try runCool mode try-run :Pushthe K2 button three times Heat mode try-run :Pushthe K2 button onceManaul address setting Samsung ElectronicsAuto address setting Address setting another case9-10 Operation caseSamsung Electronics Try-runCheck Error 9-3Fault Diagnosis by Symptom 9-3-1Basic Check FlowBasic Check Flowcont Troubleshooting9-13 Samsung Electronics9-3-2Checking Outdoor Controller Samsung Electronics9-14 LED1 Red : ALWAYS ON5.Checking DC voltage on each point 9-3-4Checking Power cable and Communication cable 9-3-5Checking Temperature sensor9-3-3Checking Indoor controller Samsung Electronics DA?GEJC3 -ELAI=P?DEJC5GGCWNV&KCIPQUKUQH/CLQT2CTVU %WTTGPV8UVGRXCNWGECPOQPKVQTGFYKVJ8+9/1&9-4PCB Inspection 9-4-1Cautions for Part Replacement9-4-2Procedure 10-1-1Indoor Unit 10. Reference for Installation10-1Selecting Area for Installation 10-1-3Remote Control Unit 10-1-2Outdoor UnitSamsung Electronics 10-210-2Connecting Up and Purging the Circuit MH050FXCA2A10-4 MH080FXCA4ASamsung Electronics 10-3Refrigerant Refill 10-3-1MH050FXCA2A10-6 10-3-2MH080FXCA4ASamsung Electronics /ABNECAN=JP@FQOPIAJP %5#5CA*%8#5C4A10-8 10-5Flare Nut Fixing TorqueSamsung Electronics 10-6Pump down Procedure 10-6-1MH050FXCA2A10-10 10-6-2MH080FXCA4ASamsung Electronics 11. Reference Information 11-1Index for Model NameFREEJOINTMULTIFOREUROPE 4 A / O O OIndex for Model Name cont FREEJOINTMULTIFOREUROPE07 / O O O Product Type11-2Refrigerating Cycle Diagram MH050FXCA2A11-3 Samsung ElectronicsMH080FXCA4A Samsung Electronics11-4 Reference InformationPower/Heat 11-3Pressure & Capacity mark11-6 11-5Q & A for Non-troubleSamsung Electronics Q & A for Non-troublecont 11-8 Q & A for Non-troublecontSamsung Electronics 11-6Common sense of refrigeration 11-6-1Air supplierAir supplier? Effectiveness of air supplierGSPNGlobal Service Partner Network ELECTRONICS