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

A.O. Smith BFC -100 Air humidity and ambient temperature, Maximum floor load, Water composition

Models: BFC - 80 BFC -100

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3.3.1

Installation	is

Air humidity and ambient temperature

The boiler room must be frost-free, or be protected against frost. The table shows the environmental conditions that must be adhered to for correct functioning of the electronics present in the appliance to be guaranteed.

Air humidity and ambient temperature specifications

Air humidity and ambient temperature

Air humidity	max. 93% RV at +25°C

Ambient temperature	Functional: 0 < T < 60°C

3.3.2Maximum floor load

Allow for the appliance's weight with respect to the maximum floor load; refer to the table.

Weight specifications related to maximum floor load

Weight of the appliance filled with water

BFC 80, BFC 100

940 kg

3.3.3Water composition

The appliance is intended for heating drinking water. The drinking water must comply with the regulations governing drinking water for human consumption. The table gives an overview of the specifications.

Water specifications

Water composition

Hardness	> 1.00 mmol/l:
(alkaline earth ions)	• German hardness> 5.6° dH
	• French hardness > 10.0° fH
	• English hardness > 7.0° eH

Conductivity	> 125 µS/cm

Acidity (pH value)	7.0 < pH value < 9.5

Note

If the water specifications deviate from those stated in the table, then the tank protection cannot be guaranteed (16 "Warranty (certificate)").

3.3.4Working clearances

For access to the appliance it is recommended that the following clearances are observed (see figure):

•AA: around the appliance's control column and cleaning openings: 100cm.

•BB: all sides of the appliance: 50cm.

Note

When installing the appliance, be aware that any leakage from the tank

and/or connections can cause damage to the immediate environment or floors below the level of the boiler room. If this is the case, then the appliance should be installed above a wastewater drain or in a suitable metal leak tray.

The leak tray must have an appropriate wastewater drain and must be at least 5cm deep with a length and width at least 5 m greater than the diameter of the appliance.

18	Instruction manual BFC

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A.O. Smith BFC -100 Air humidity and ambient temperature, Maximum floor load, Water composition, Working clearances

Contents

100 Your installer Liability Read this manual carefullyTrademarks More informationGis Table of contents Maintenance frequency Service programTroubleshooting 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 Gas valve Water temperature protectionPressure switch 4 FanVented installation Safety of the installationUnvented installation Flame probeEnvironmental InstallationPackaging ConditionsWater composition Air humidity and ambient temperatureMaximum floor load 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 Hot water side Water connections, VentedCold water side Circulation pipeWater connections, Unvented Gas connection Air supply and flue IntroductionRequirements for flue gas discharge materials C43 B23 C33 C13 C53 Type of appliance Description Concentric connectionsPractical example of concentric flue gas discharge 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 an extra error signal Alarm OUT Connecting a program-controlled pumpConnecting an extra on mode switch Tank on Checking the supply pressure and burner pressureProcedure to check pressures 11.1Gas data Gas dataFinalising Adjusting the pressure11.3 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 the appliance Filling unvented installationsFilling vented installations FillingDraining Draining Min Gis Controls Electronic controller ON/OFF switchControl panel Meaning of iconsPC connection Control panelOperating modes Error conditions Service condition Status of the applianceOperating modes Status of the appliance Error conditionsManual 13 Troubleshooting Menu 11 Main menu chapterService condition Manual 14 Maintenance frequencyGis Appliances heating cycle Open 3.5 Installation diagram the manual gas valveStarting and running Starting and running Appliances heating cycleStarting and running Electrically isolating the appliance Shut the appliance down for a brief period OFF modeShutting down Shutting the appliance down for a long periodShutting down Main menu Switching on the on modeSetting water temperature during on mode Notational convention for menu-related instructionsChanging the appliances standard week program Week program setting the switch- on timeStarting and stopping the week program Main menuWeek program setting the program- controlled pump Week program setting the switch- off timeWeek program setting the water temperature 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 Setting the display contrast Switching the pump on or offSetting the service interval Setting the display backlight timeTroubleshooting General errorsDisplayed errors Display is off Troubleshooting table for general errorsSymptom Cause Solution Remark Gas smell Start the appliance up 9 Starting and runningHot water supply Symptom Cause Solution Remark Water leakageExplosive ignition Insufficient or absentDisplayed errors S14 blocking error Code + Description Cause Solution Remark S12 blocking errorS13 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 Appliance Code + Description Cause Solution Remark F03 lock out errorMaintenance 15.2 Preparation for maintenance. If there is FlueCode + Description Cause Solution Remark F04 lock out error F05 lock out errorF08 lock out error Code + Description Cause Solution Remark F06 lock out errorF07 lock out error F09 lock out errorCode + Description Cause Solution Remark F10 lock out error F11 blocking errorC04 blocking error Code + Description Cause Solution Remark C02 lock out errorC03 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 Clean the burners Cleaning condensation water dischargeGas-side maintenance Finalizing maintenance Introduction Clean the orifices16.2 Tank warranty Warranty certificate16.1 General warranty Conditions for Installation and useWarranty certificate Appendices Week program cardBFC Electrical Diagram AppendicesTerminal Block Connections Appendices Tset Pump Week program cardPeriod Example PeriodPage Index 0308 Index