A.O. Smith BFM - 100 Maximum floor load, Water composition, Working clearances, Installation

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3.3.2

3.3.3

Installation

is

 

Maximum floor load

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

Weight of the appliance filled with water

BFM 30

BFM 50

BFM 80

BFM 100

BFM 120

 

 

 

 

 

539 kg

543 kg

548 kg

573 kg

573 kg

 

 

 

 

 

Water 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 (13 "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.

Above the appliance (room to replace the anodes):

-100cm if using fixed anodes, or

-50cm if using flexible anodes.

If the available clearance is less than 100cm, flexible magnesium anodes may be ordered.

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, 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 5cm greater than the diameter of the appliance.

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Instruction manual BFM

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Contents Page Page Liability Read this manual carefullyTrademarks More informationGis Table of contents Warranty certificate TroubleshootingPerforming maintenance Electrical diagramIntroduction About the applianceWhat to do if you smell gas Regulations Maintenance Forms of notation Target groups Symbol Target groupIntroduction Overview of this DocumentChapter Target groups Description Gis Working principle of the appliance General workingPrinciple Appliance Working principle of the appliance Appliances heating cycle Protection for the appliance Flame probe Water temperature protectionPressure switch Protection DescriptionVented installation Safety of the instal- lationUnvented installation 3 T&P valveGis Air humidity and ambient temperature InstallationAir humidity and ambient temperature PackagingWater composition InstallationMaximum floor load Working clearancesTechnical specifica- tions Dimensions of the appliance Plan and elevation of the applianceBFM100 BFM120 Ion General and electrical specificationsDimens Description UnitNatural gas G20 20 mbar Gas dataDescription Unit LP gas data G30 30 mbar butaneInstallation diagram Installation diagramRecirculation pipe Water connections, VentedCold water side Hot water sideSee C in the installation diagram 3.5 Installation diagram Circulation pipe Water connections, UnventedCirculation pipe Gas connectionInstalling chimney flue components for BFM 30, 50 Air supply and flue IntroductionConcentric wall flue terminal BFM Subject DescriptionConcentric roof flue terminal BFM 30, 50 C33 concentric roof flue terminal specifications BFM 30, 50 Installing chimney flue components for BFM 100Concentric wall flue terminal BFM100 C13 concentric wall flue terminal specifications BFM 100 M2000 MDV SCCConcentric roof flue terminal BFM 100 11 C33 concentric roof flue terminal specifications BFM 100 Electrical connectionConnecting the mains power Mains power Fan Alarm OffChecking the supply pressure and burner pressure Gas control for BFM 30 throughGas control for BFM BFM 30, 50, 80 BFMConversion to a different gas category ConversionOrifice replacement Conversion to a different gas categoryPage Conversion to a different gas category Filling Filling Draining Draining unvented installations DrainingDraining vented installations Gis Explanation of icons ON/OFF switchControl panel Control thermostatBurner control reset button Control panelError conditions Status of the applianceOperating modes Status of the appliance Starting and running Starting the applianceAppliances heating cycle Starting and running Isolating the appliance from the mains Shutting down the appliance for a brief period OFF modeShutting down Shutting the appliance down for a long periodShutting down Troubleshooting Control thermostat 7.5 Control thermostatWater leakage Troubleshooting general errorsSymptom Cause Solution Remark Gas smell Explosive ignitionTroubleshooting insufficient hot water Symptom Cause Solution Remark Insufficient hot waterTroubleshooting No hot water Symptom Cause Solution Remark CyclePage Performing maintenance Introduction Preparation for maintenanceWater-side mainte- nance 12.3.1 Descaling and cleaning the tankPerforming maintenance Checking the anodesIMD-0235 R2 Gas-side mainte- nance 12.4.1 Clean the burnersClean the orifices Checking the flue baffles Finalising mainte- nance13.2 Tank warranty Warranty certificate13.1 General warranty Conditions for Instal- lation and useWarranty certificate Electrical diagram BFM Electrical Diagram Electrical diagramOptional Components Electrical diagram Index 0306 Index