A.O. Smith BFC - 80 Benutzerhandbuch

Instruction manual BFC

47

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Topics covered in this chapter:
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•

;

•

•

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<The entire appliance is controlled (and monitored) by 
the ThermoControl (electronic controller).The figure 
shows the electronic controller.

The control panel is completely menu-driven, and 
comprises:
•

a 4-line display with 20 characters per line;

•

6 pushbuttons for operating the appliance (below 
the display);

•

6 graphical symbols (above the display);

•

a connector for a service PC;

•

an ON/OFF switch.

The pushbuttons are divided into three groups:
•

Navigation buttons:
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Buttons for UP  , and DOWN  ;

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Enter: 

;

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Reset button: 

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the main menu

•

the service program

This chapter is specifically intended for the service 
and maintenance engineer and installation 
engineer.

In this manual, the display of the electronic controller 
is shown as in the figure, both with and without icons.

The table explains the meanings of the icons.

The ON/OFF switch of the electronic controller is used 
to switch the appliance ON and OFF. Note that in the 
OFF position the appliance remains electrically live, in 
order for the continuous pump to stay running.

After switching on, the text INTERNAL CHECK 
appears on the display for about 10 seconds. Themain 
menu

 then appears. If no selection 

is made in the main menu, the appliance automatically 
switches to the OFF mode

Note
To electrically isolate the appliance, you must use 

the isolator between the appliance and the mains 
power supply.

The use of these buttons is explained with the help of 
the figure that shows the main menu

The navigation buttons are:

n

min

0063

O

I

 »START OPERATION

^ CHANGE SETPOINT

È

Tset=70ÉC

Heat demand

Heat demand detected

Purge

Pre- and post-purge using 

fan

Pressure switch Pressure switch is closed
Glowing

(Pre)glow

Gas control

Gas control open/ignition

Flame detection Appliance operational

INTERNAL CHECK

a