A.O. Smith BFC - 30, BFC - 60 service manual Starting and running, Appliances heating cycle

Models: BFC - 30 BFC - 60

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9 Starting and running

9.1Introduction

Topics covered in this chapter, in sequence:

Starting and running.

The appliance's heating cycle.

9.2Starting and running

Start the appliance as follows:

1. Fill the appliance (5 "Filling").

2.Open (3.5 "Installation diagram") the manual gas valve.

3.Switch on the power to the appliance using the isolator between the appliance and the power supply.

4.Switch the electronic controller ON by setting the ON/OFF switch to position I.

a

»START OPERATION ^ CHANGE SETPOINT

ÈTset=65ÉC

6.Confirm the START OPERATION by pressing .

The appliance is now in "ON mode". If there is a heat demand, the appliance will run through the heating cycle (9.3 "The appliance's heating cycle").

If the heating cycle is not run, there is no heat demand; if this is the case, Tset will probably need to be set (11.4 "Setting the water temperature").

n

 

min

 

 

0063

O

I

 

IMD-0423 R0

The display will now show INTERNAL CHECK for about 10 seconds and go to the main menu.

a

INTERNAL CHECK

a

MENU »OFF ^ ON

ÈWEEK PROGRAM

5.Press the blue arrow once () to position the

cursor in front of ON and press . The display shown in the figure will appear.

9.3The appliance's heating cycle

The appliance's heating cycle is activated as soon as the measured water temperature (Tnet) falls below the threshold value (Tset). This threshold value depends on the currently selected appliance operating mode. For example, if the appliance is in "OFF mode" (frost protection), then this value is 5°C. If the appliance is in "ON mode", then this threshold value is selectable, for example, 65°C.

The heating cycle runs in turn through the following states:

1.HEAT DEMAND;

2.PRE-PURGE;

3.PRESSURE SWITCH;

4.PRE-GLOW;

5.IGNITION;

6.RUNNING;

7.POST-PURGE.

The complete cycle is explained in the following example, which assumes the appliance is in the basic mode ON.

Note

The same heating cycle applies to the other operating modes.

Instruction manual BFC

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A.O. Smith BFC - 30, BFC - 60 service manual Starting and running Appliances heating cycle

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.