A.O. Smith BFC - 80, BFC -100 Symptom Cause Solution Remark Water leakage, Explosive ignition

Page 69

is

Symptom

Cause

Solution

Remark

 

 

 

 

Water leakage

Leakage from a water

Tighten the threaded connection

If the leak persists, consult your installation engineer

 

connection (threaded)

 

 

 

 

 

 

 

Condensate leakage

Check that the condensation water discharge is working properly.

 

 

 

Rectify if necessary

 

 

 

 

 

 

Leakage from another

Trace the leak

 

 

nearby water appliance

 

 

 

or pipe segment

 

 

 

 

 

 

 

Leakage from the

Consult the supplier and/or manufacturer

 

 

appliance's tank

 

 

 

 

 

 

Explosive ignition

Incorrect supply

Set the correct supply pressure and/or burner

If ignition is not improved, consult your installation engineer.

 

pressure and/or burner

pressure. (3.11 "Checking the supply pressure and burner

 

 

pressure

pressure")

 

 

 

 

 

 

Contaminated burner

Clean the burner(s) (15.4.2 "Clean the burner(s)")

 

 

 

 

 

 

Contaminated orifice

Clean the orifice(s) (15.4.3 "Clean the orifice(s)")

 

 

 

 

 

Hot water supply

Appliance is turned off

Start the appliance up (9 "Starting and running")

 

insufficient or absent

 

 

 

No supply voltage

1. Check if the isolator is ON.

See the BFC electrical diagram (17 "Appendices")

 

present

2. Check that there is power to the isolator.

If the error persists, consult your installation engineer.

 

 

 

 

 

3. Check whether the ON/OFF switch of the electronic controller is

 

 

 

ON (position I).

 

 

 

4. Check whether there is power to the electrical connector block.

 

 

 

5. The measured voltage must be 230 VAC (-15%, +10%).

 

 

 

 

 

 

Hot water supply is

Reduce hot water consumption and give the appliance time to heat

If there continues to be insufficient hot water, or none at all, consult

 

used up

up.

your installation engineer.

 

 

 

 

 

The controller is in OFF

Switch the controller to the ON mode (11.2 "Switching on the "ON

 

 

mode.

mode"")

 

 

 

 

 

 

Temperature (Tset) is

Adjust (11.3 "Setting the water temperature") temperature (Tset) to

 

 

set too low.

a higher value.

 

Instruction manual BFC

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Page 68 Page 70
Contents 100 Your installer Trademarks Read this manual carefullyLiability More informationGis Table of contents Troubleshooting Service programMaintenance 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 General working principle of the appliance Working principle of the applianceWater temperature protection TheGas valve Appliances heating cycle Protection for the applianceWorking principle of the appliance Pressure switch Water temperature protectionGas valve 4 FanUnvented installation Safety of the installationVented installation Flame probePackaging InstallationEnvironmental ConditionsMaximum floor load Air humidity and ambient temperatureWater composition Working clearancesTechnical specifications Dimensions of the appliance General and electrical specifications Dimen Description BFC SionUnit BFC Description II2H3P Unit BFC Natural gas Gas dataInstallation diagram Cold water side Water connections, VentedHot water side Circulation pipeWater connections, Unvented Gas connection Air supply and flue IntroductionRequirements for flue gas discharge materials C43 B23 C33 C13 C53 Practical example of concentric flue gas discharge Concentric connectionsType of appliance Description Appliance Diameter Maximum length Number BendsAppliance with concentric flue gas discharge material SpecificationsSubject Description Concentric wall flue terminal specifications C13Practical example of parallel flue gas discharge Parallel connectionsElectrical connection Preparation Connecting the mains voltagePreparation Connecting the mains voltage Isolating transformer10.2 Preparation Connecting an extra on mode switch Tank on Connecting a program-controlled pumpConnecting an extra error signal Alarm OUT Checking the supply pressure and burner pressure11.1 Procedure to check pressuresGas data 11.3 Adjusting the pressureFinalising Finish off 3.11.4 FinalisingConversion to a different gas category Orifice assemblyStart 9 Starting and running the appliance Conversion to a different gas categoryFilling Installation diagramFilling vented installations Filling unvented installationsFilling the appliance FillingDraining Draining Min Gis Control panel Electronic controller ON/OFF switchControls Meaning of iconsControl panel PC connectionOperating modes Error conditions Service condition Status of the applianceOperating modes Manual 13 Troubleshooting Error conditionsStatus of the appliance Menu 11 Main menu chapterManual 14 Maintenance frequency Service conditionGis Starting and running Open 3.5 Installation diagram the manual gas valveAppliances heating cycle Starting and running Appliances heating cycleStarting and running Shutting down Shut the appliance down for a brief period OFF modeElectrically isolating the appliance Shutting the appliance down for a long periodShutting down Setting water temperature during on mode Switching on the on modeMain menu Notational convention for menu-related instructionsStarting and stopping the week program Week program setting the switch- on timeChanging the appliances standard week program Main menuWeek program setting the water temperature Week program setting the switch- off timeWeek program setting the program- controlled pump Adding times to a week programDeleting times from a week program Pump 11.6.4 Week program setting the program-controlled pumpSetting the switch-on time Extra periodProgramming an extra period Setting menu language SettingsDisplaying appliance specifications Setting day and timeRelevant display appears Service program Setting the hysteresisDisplaying the error history Setting the service interval Switching the pump on or offSetting the display contrast Setting the display backlight timeTroubleshooting General errorsDisplayed errors Symptom Cause Solution Remark Gas smell Troubleshooting table for general errorsDisplay is off Start the appliance up 9 Starting and runningExplosive ignition Symptom Cause Solution Remark Water leakageHot water supply Insufficient or absentDisplayed errors S13 blocking error Code + Description Cause Solution Remark S12 blocking errorS14 blocking error S15 blocking errorCode + Description Cause Solution Remark F02 lock out error Check the values 2.4.5 Pressure switch Code + Description Cause Solution RemarkReplaced Maintenance 15.2 Preparation for maintenance. If there is Code + Description Cause Solution Remark F03 lock out errorAppliance FlueF05 lock out error Code + Description Cause Solution Remark F04 lock out errorF07 lock out error Code + Description Cause Solution Remark F06 lock out errorF08 lock out error F09 lock out errorF11 blocking error Code + Description Cause Solution Remark F10 lock out errorC03 blocking error Code + Description Cause Solution Remark C02 lock out errorC04 blocking error Selected applianceCode + Description Cause Solution Remark E01 blocking error E03 lock-out errorE04 lock-out error Interval Maintenance frequencyMaintenance frequency Introduction Preparation for maintenance Performing maintenancePerforming maintenance Water-side maintenance Introduction Descaling and cleaning the tankChecking the anodes Gas-side maintenance Finalizing maintenance Introduction Cleaning condensation water dischargeClean the burners Clean the orifices16.1 General warranty Warranty certificate16.2 Tank warranty Conditions for Installation and useWarranty certificate Week program card AppendicesAppendices BFC Electrical DiagramTerminal Block Connections Appendices Period Week program cardTset Pump Example PeriodPage Index Index 0308

BFC - 80, BFC -100 specifications

A.O. Smith is a renowned name in the water heater industry, and its BFC series, which includes the BFC-100 and BFC-80 models, exemplifies their commitment to innovation and efficiency. These units are designed to meet the demanding needs of both residential and commercial applications, providing reliable hot water solutions.

The A.O. Smith BFC-100 and BFC-80 are distinguished by their high capacity and robust design. The BFC-100 model boasts a capacity of 100 gallons, while the BFC-80 is ideal for those requiring 80 gallons. This makes them suitable for larger households or commercial establishments where hot water demand can be significant.

One of the primary features of these models is their advanced heating technology. Both units utilize a high-efficiency burner that ensures rapid heating and minimal energy consumption. This means users benefit from shorter wait times for hot water, reducing overall energy costs. The BFC series is also equipped with a special flame retention head that enhances combustion efficiency and prolongs the lifespan of the unit.

In terms of construction, the BFC-100 and BFC-80 models are built with high-quality materials that enhance durability and resistance to corrosion. The tanks are insulated with high-density foam, which improves energy retention and helps maintain water temperature for longer periods. This is crucial for conserving energy and minimizing heating costs.

Safety is a top priority for A.O. Smith, and the BFC series reflects this commitment. Each unit comes with a range of safety features, including a temperature and pressure relief valve that prevents overheating and excessive pressure buildup. Additionally, they are designed to meet strict industry standards, ensuring peace of mind for users.

Installation of both models is straightforward, with flexible venting options that accommodate various building layouts. Whether you are upgrading an existing water heating system or installing a new one, the BFC series is designed to integrate seamlessly.

In summary, the A.O. Smith BFC-100 and BFC-80 are excellent options for those seeking reliable, efficient, and durable water heating solutions. With their impressive capacity, advanced heating technology, robust construction, and safety features, these models stand out in the market and are sure to meet the hot water needs of any household or commercial space. Whether for residential use or in a business setting, A.O. Smith’s BFC series represents quality and innovation in hot water heating.
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