A.O. Smith 28 30 50 60 Introduction, What to do if you smell gas Regulations, About the appliance

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About the appliance

1Introduction

1.1About the appliance This manual describes how to install, service and use the BFC appliance. The BFC appliance is a condensing room-sealed water heater with a fan in the air intake. A concentric chimney connector is fitted standard to the appliance.

Alternatively, the appliance can be connected using a parallel system. Installation types possible with this appliance are C13, C33, C43, C53 and C63. The information in this manual is applicable to types: BFC 28, BFC 30, BFC 50 and BFC 60.

The manner of construction and features of the appliance are in conformance with the European standard for gas-fired storage water heaters for the production of domestic hot water (ES 89). The appliances are therefore compliant with the European Directive for Gas Appliances, and have the right to bear the CE mark.

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1.2What to do if you smell gas

1.3Regulations

Warning

Read this manual carefully before starting up the water heater. Failure to read the manual and to follow the printed instructions may lead to personal injury and damage to the appliance.

Warning

Whenever there is a smell of gas:

No naked flames! No smoking!

Avoid causing sparks! Do not use any electrical equipment or switch, i.e. no telephones, plugs or bells!

Shut off the mains gas supply!

Open windows and doors!

Warn occupants and leave the building!

After leaving the building, alert the gas distribution company or installer.

As the (end) user, installer or service and maintenance engineer, you must ensure that the entire installation complies, as a minimum, with the official local:

•building regulations;

•energy supplier’s directives for existing gas installations;

•directives and technical guidelines for natural gas installations;

•safety requirements for low-voltage installations;

•regulations governing the supply of drinking water;

•regulations governing ventilation in buildings;

•regulations governing the supply of air for combustion;

•regulations governing the discharge of products of combustion;

•requirements for installations that consume gas;

•regulations governing indoor waste water disposal;

•regulations imposed by fire service, power companies and municipality;

Release R.1.3 UK

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Contents Release R.1.3 UK Your installer Trademarks CopyrightLiability More informationPage Gis Table of contentsControl panel Filling and drainingStatus of the appliance Starting up and shutting downTroubleshooting Service programMaintenance frequency MaintenanceIndex AppendicesIntroduction What to do if you smell gas RegulationsAbout the appliance Symbol Target group Target groups Maintenance Forms of notationRemark IntroductionDocument Overview of thisOverview of this document Chapter Target groups DescriptionGis Functioning of the appliance Introduction Functional description of the applianceIntroduction Water temperature protection Gas control Pressure switch Ionisation rodAppliance’s heating cycle Protection for the appliance Pressure switch Water temperature protectionGas control 3 FanUnvented installation Safety of the instal- lationVented installation Ionisation rodIntroduction Packaging Environmental conditions InstallationMaximum floor loading Humidity and ambient temperatureWater composition Working clearancesWorking clearances Environmental conditionsPlan and elevation of the appliance Technical specificationsTechnical specifications DimensionsDime Description BFC Nsion Unit BFCVAC Gas data Installation diagramGeneral G30-30 mbar butaneUnvented InstallationHot water side Water connections, Unvented Cold water sideCirculation pipe Condensation drainageGas connection Water connections, VentedSee paragraph ’3.6.4 Condensation drainage’ See din FigureDimension BFC Air supply and flue gas dischargeAir supply and flue gas discharge Concentric wall flue terminal Specification DescriptionConcentric roof flue terminal Concentric roof flue terminal specificationsElectrical connection PreparationPreparation Mains voltage Electrical connection Mains voltageIsolating Transformer Extra on mode switch Tank onContinuous pump Program-controlled pumpChecking the supply Pressure and burner Connecting extra error signal Alarm OUTChecking the supply pressure and burner pressure ApplianceMain menu Conversion to a different gas category Conversion to a different gas categoryRemove the burner as complete assembly Check the burner and supply pressure see paragraph 13 Conversion of gas controlInstallation Filling vented installations Filling the appliance Filling unvented installationsFilling and draining Filling the applianceFilling and draining Installation diagrams F d cDraining vented installations Draining unvented installationsDraining the appliance Draining the applianceGis Introduction Operating Control panelNavigation buttons Explanation of the icons ON/OFF switch of ThermoControlPC connection Control panelOperating modes Error conditions Service condition Status of the applianceIntroduction Operating modes Status of the appliance Error conditionsService condition Service conditionGis Starting up and shutting down Open the gas valve see ’ .1 Installation diagrams’Introduction Starting up Shutting downDisconnect the appliance from the mains Shut the appliance down for a brief period OFF modeShut the appliance down for a longer period Starting up and shutting downAppliance’s heating cycle Appliance’s heating cycle12 Ignition Notational convention for menu-related instructions Main menuSwitching into on mode Setting the water temperature Setting the water temperature via Setpoint MenuSetting water temperature during on mode Week programme Introduction Starting up and shutting down the week programChanging the appliance’s standard week program Remark Setting the switch-on time Setting switch-off timeExample Setting program-controlled pump Setting the water temperatureAdding times to a week program Week programme20 Period added Deleting times from a week program23 week program options Programming an extra period Extra periodSettings Setting menu languageSettings Displaying appliance specifications Remark Setting day and time46 Main menu Gis Service program Setting the hysteresisDisplaying the error history Setting the service interval Setting the pump on/offService program Displaying the appliance historySetting the backlight time Setting the display contrastSetting the display scroll speed Setting the display contrastService program Troubleshooting General errorsDisplayed errors Symptom Cause Solution Remark Gas smell Gas leak Troubleshooting table for general errorsSymptom Cause Solution Remark Display is off See appendix ’A.2 Electrical diagram BFC’Water leakage Symptom Cause Solution Remark Explosive ignition Troubleshooting table for displayed errorsInsufficient or no hot WaterS03 blocking error S02 blocking errorS04 blocking error S05 blocking errorS13 blocking error S14 blocking errorS15 blocking error F02 lock out error Phase-sensitive. See ’3.10 Electrical connection’Appliance specifications’ How to bleed air from the gas line, and measure the supply F07 lock out error F06 lock out errorF08 lock out error ’3.9 Air supply and flue gas discharge’F10 lock out error Error F09 remains active in the event that the waterRelease R.1.3 UK Release R.1.3 UK E01 blocking error C04 blocking errorE03 blocking error E04 blocking errorDetermining service interval Maintenance frequencyMaintenance frequency Remark Preparation for maintenance MaintenanceStarting up Maintenance Cleaning condensation water discharge Descaling and cleaning the tankCleaning the burner Water-side mainte- nance IntroductionCleaning heat exchanger Cleaning the orifice12.4.3 Remark Finalising mainte- nanceWarranty Certificate Warranty Certificate Week program card AppendicesAppendices Electrical diagramWeek program card Release R.1.3 UK Index IX IndexIX Index 0306