A.O. Smith BFC - 60, BFC - 30 Connecting the mains voltage, Isolating transformer, Preparation

Page 34

3

Installation

is

 

In preparation, you must first remove the two plastic covers and the protective cap of the electrical section.

1.Undo the screws of the plastic covers.

2.Carefully remove the covers from the appliance. The electrical section is now visible.

3.Loosen the 2 screws (A) of the electrical section, and remove the protective cap (B) from the electrical section.

The connector block (C) is now visible.

Note

Consult the table for the connections and consult the electrical diagram for the electrical component connections.

Electrical connector block

Unus

Tank

Continuous

Program-

 

 

 

 

 

 

 

 

 

Mains

controlled

Alarm Off

Isolating transformer

ON

pump

voltage

ed

pump

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

primary

secondary

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

X1

X2

 

L

N

N

L

 

X1

X2

 

N

L

 

N

L

 

N

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1-4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.10.3Connecting the mains voltage

The appliance is supplied without a power cable and isolator.

Note

In order to receive electrical power, the appliance has to be connected to the mains power by means of a permanent electrical connection. A double-pole isolator with a contact gap of at least 3 mm must be fitted between this permanent connection and the appliance. The power cable must have cores of at least 3 x 1.0 mm2.

Warning

Leave the appliance isolated until you are ready to start it up.

1.Connect phase (L), neutral (N) and earth () of the power cable to terminals 22 through 24 of the connection block as indicated in the

table (3.10.2 "Preparation").

2.Fit the power cable in the strain relief.

3.Connect the power cable to the isolator.

4.If you have no more connections to make:

-Fit the cap on the electrical terminal block.

-Fit the plastic covers onto the appliance.

3.10.4Isolating transformer

An isolating transformer should be used if there is a case of 'floating neutral'.

1.Refer to fitting instructions provided with the isolating transformer. (Contact the supplier for details of the correct isolating transformer.)

2.Connect phase (L), neutral (N) and earth () to terminals 16 through 21 of the terminal block as stated in the table (3.10.2 "Preparation").

3.Fit the cables in the strain relief.

34

Instruction manual BFC

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Contents Installation User Your installer Liability Read this manual carefullyTrademarks More informationGis Table of contents Maintenance frequency Service programTroubleshooting Performing maintenanceAppendices Table of contents About the appliance IntroductionWhat to do if you smell gas Regulations Symbol Target group Target groups MaintenanceIntroduction Gis Document Overview of thisChapter Target groups Description General working principle of the appliance Safety of the installationWorking principle of the appliance Appliances heating cycleAppliances heating cycle Protection for the appliance Water temperature protection TheGas valvePressure switch Flame probe Working principle of the applianceGas valve Water temperature protectionPressure switch 4 FanVented installation Safety of the instal- lationUnvented installation Flame probeEnvironmental InstallationPackaging ConditionsWater composition Air humidity and ambient temperatureAppliance maximum floor load Working clearancesWorking clearances Dimensions of the appliance Technical specifica- tionsSion General and electrical specificationsDimen Description Unit BFCGas category 2H G20 20 mbar Gas dataDescription II2H3+ Unit General 3+Installation diagram Hot water side Water connections, UnventedCold water side Circulation pipeWater connections, Vented Air supply and flue Introduction Gas connectionRequirements 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 of 90º BendsSpecifications Appliance with concentric flue gas discharge materialConcentric wall flue terminal specifications C13 Specification DescriptionParallel connections Practical example of parallel flue gas outletPreparation Connecting the mains voltage Electrical connectionPreparation Isolating transformer Connecting the mains voltage10.2 Preparation Connecting an extra on mode switch Tank on Connecting continuous pumpConnecting a program-controlled pump Connecting an extra error signal Alarm OUTChecking the supply pressure and burner pressure 11.1Procedure to check pressures Gas data Adjusting the pressureFinalising Finish off 3.11.4 FinalisingOrifice assembly Conversion to a different gas categoryConversion to a different gas category Conversion of gas controlPage Conversion to a different gas category Installation 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 panelStatus of the appliance Operating modes Error conditions Service conditionOperating 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 modeNotational convention for menu-related instructions Starting and stopping the week program Setting water temperature during on modeWeek program Changing the appliances standard week programWeek program setting the switch- off time Week program setting the switch- on timeWeek program setting the water temperature Week program setting the program- controlled pump Adding times to a week programDeleting times from a week program Extra periodSetting the water temperature Setting the switch-on timeSetting the switch-off time Setting the program-controlled pumpSetting day and time SettingsSetting menu language Adjustable settingsDisplaying appliance specifications Setting the hysteresis Service programDisplaying the error history Setting the display contrast Switching the pump on or offSetting the service interval Setting the display backlight timeGeneral errors TroubleshootingDisplayed 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 absentTroubleshooting table for displayed errors Displayed 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 switchAppliance 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 applianceE03 lock-out error Code + Description Cause Solution Remark E01 blocking errorE04 lock-out error Page Maintenance frequency IntervalMaintenance frequency Performing maintenance Introduction Preparation for maintenancePerforming maintenance Water-side mainte- nance Introduction Descaling and cleaning the tankChecking the anodes Clean the orifices Cleaning condensation water dischargeClean the burners Cleaning the heat exchanger Finalizing mainte- nance16.2 Tank warranty Warranty certificate16.1 General warranty Conditions for Instal- lation and useWarranty certificate Electrical diagram AppendicesElectrical diagram AppendicesTerminal Block Connections Appendices Tset Pump Week program cardPeriod Example PeriodPage Index 0306 Index

BFC - 30, BFC - 60 specifications

A.O. Smith is a well-regarded name in the water heating industry, known for producing innovative and efficient water heaters. Among their renowned products are the BFC - 60 and BFC - 30 models, which have gained popularity for their performance and reliability.

The A.O. Smith BFC - 60 and BFC - 30 are both designed to meet the diverse needs of residential and commercial users. The BFC - 60 has a capacity of 60 gallons, making it ideal for larger households or commercial settings where hot water demand is high. Meanwhile, the BFC - 30, with its 30-gallon capacity, caters to smaller households or establishments with lower hot water requirements.

One of the standout features of both models is their advanced heating technology. They are equipped with a high-efficiency burner system, which enhances the heating process while minimizing energy consumption. This means that users experience quicker recovery times and can enjoy a steady supply of hot water without the long wait associated with traditional heaters. The BFC series is designed to save energy, aligning with modern demands for sustainability.

Another significant characteristic of these models is their durable construction. Made with high-quality materials, including glass-lined tanks, they are built to resist corrosion and extend the lifespan of the water heater. This durability contributes to fewer maintenance requirements, giving users peace of mind.

In terms of safety, A.O. Smith has incorporated numerous features into the BFC series. Both models come with safety valves and thermostat controls to ensure that water is heated to appropriate temperatures, reducing the risk of scalding and malfunction. Additionally, their design allows for easy installation and maintenance, making them a user-friendly option.

Another aspect that distinguishes the BFC series is its compact design. Both models have a space-saving profile, making them suitable for installation in various locations, including tight utility rooms or basements. This flexibility allows homeowners and businesses to maximize their space without sacrificing performance.

Overall, the A.O. Smith BFC - 60 and BFC - 30 are exemplary water heating solutions that combine efficiency, durability, and safety. With their advanced features and technologies, they are an excellent choice for anyone in need of reliable hot water, ensuring comfort and satisfaction for years to come.
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