Manuals / A.O. Smith / Household Appliance / Water Heater

A.O. Smith BFC -100, BFC - 80 service manual Gis

Models: BFC - 80 BFC -100

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Introduction

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12	Instruction manual BFC

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A.O. Smith BFC -100, BFC - 80 service manual Gis

Contents

100 Your installer Read this manual carefully TrademarksLiability More informationGis Table of contents Service program TroubleshootingMaintenance frequency Performing maintenanceAppendices Table of contents Introduction About the applianceWhat to do if you smell gas Regulations Target groups Maintenance Forms of notation Symbol Target groupIntroduction Overview of this DocumentChapter Target groups Description Gis Working principle of the appliance General working principle of the applianceWater temperature protection TheGas valve Appliances heating cycle Protection for the applianceWorking principle of the appliance Water temperature protection Pressure switchGas valve 4 FanSafety of the installation Unvented installationVented installation Flame probeInstallation PackagingEnvironmental ConditionsAir humidity and ambient temperature Maximum floor loadWater composition Working clearancesTechnical specifications Dimensions of the appliance General and electrical specifications Dimen Description BFC SionUnit BFC Gas data Description II2H3P Unit BFC Natural gasInstallation diagram Water connections, Vented Cold water sideHot water side Circulation pipeWater connections, Unvented Gas connection Air supply and flue IntroductionRequirements for flue gas discharge materials C43 B23 C33 C13 C53 Concentric connections Practical example of concentric flue gas dischargeType of appliance Description Appliance Diameter Maximum length Number BendsSpecifications Appliance with concentric flue gas discharge materialConcentric wall flue terminal specifications C13 Subject DescriptionParallel connections Practical example of parallel flue gas dischargePreparation Connecting the mains voltage Electrical connectionPreparation Connecting the mains voltage Isolating transformer10.2 Preparation Connecting a program-controlled pump Connecting an extra on mode switch Tank onConnecting an extra error signal Alarm OUT Checking the supply pressure and burner pressureProcedure to check pressures 11.1Gas data Gas dataAdjusting the pressure 11.3Finalising Finish off 3.11.4 FinalisingOrifice assembly Conversion to a different gas categoryConversion to a different gas category Start 9 Starting and running the applianceInstallation diagram FillingFilling unvented installations Filling vented installationsFilling the appliance FillingDraining Draining Min Gis Electronic controller ON/OFF switch Control panelControls Meaning of iconsPC connection Control panelOperating modes Error conditions Service condition Status of the applianceOperating modes Error conditions Manual 13 TroubleshootingStatus of the appliance Menu 11 Main menu chapterService condition Manual 14 Maintenance frequencyGis Open 3.5 Installation diagram the manual gas valve Starting and runningAppliances heating cycle Starting and running Appliances heating cycleStarting and running Shut the appliance down for a brief period OFF mode Shutting downElectrically isolating the appliance Shutting the appliance down for a long periodShutting down Switching on the on mode Setting water temperature during on modeMain menu Notational convention for menu-related instructionsWeek program setting the switch- on time Starting and stopping the week programChanging the appliances standard week program Main menuWeek program setting the switch- off time Week program setting the water temperatureWeek program setting the program- controlled pump Adding times to a week programPump 11.6.4 Week program setting the program-controlled pump Deleting times from a week programSetting the switch-on time Extra periodProgramming an extra period Settings Setting menu languageSetting day and time Displaying appliance specificationsRelevant display appears Service program Setting the hysteresisDisplaying the error history Switching the pump on or off Setting the service intervalSetting the display contrast Setting the display backlight timeTroubleshooting General errorsDisplayed errors Troubleshooting table for general errors Symptom Cause Solution Remark Gas smellDisplay is off Start the appliance up 9 Starting and runningSymptom Cause Solution Remark Water leakage Explosive ignitionHot water supply Insufficient or absentDisplayed errors Code + Description Cause Solution Remark S12 blocking error S13 blocking errorS14 blocking error S15 blocking errorCode + Description Cause Solution Remark F02 lock out error Code + Description Cause Solution Remark Check the values 2.4.5 Pressure switchReplaced Code + Description Cause Solution Remark F03 lock out error Maintenance 15.2 Preparation for maintenance. If there isAppliance FlueCode + Description Cause Solution Remark F04 lock out error F05 lock out errorCode + Description Cause Solution Remark F06 lock out error F07 lock out errorF08 lock out error F09 lock out errorCode + Description Cause Solution Remark F10 lock out error F11 blocking errorCode + Description Cause Solution Remark C02 lock out error C03 blocking errorC04 blocking error Selected applianceCode + Description Cause Solution Remark E01 blocking error E03 lock-out errorE04 lock-out error Maintenance frequency IntervalMaintenance frequency Performing maintenance Introduction Preparation for maintenancePerforming maintenance Water-side maintenance Introduction Descaling and cleaning the tankChecking the anodes Cleaning condensation water discharge Gas-side maintenance Finalizing maintenance IntroductionClean the burners Clean the orificesWarranty certificate 16.1 General warranty16.2 Tank warranty Conditions for Installation and useWarranty certificate Appendices Week program cardBFC Electrical Diagram AppendicesTerminal Block Connections Appendices Week program card PeriodTset Pump Example PeriodPage Index 0308 Index