Bentone BG 700, Installation And Maintenance Instruction

Page: 22 / 44

22 Bentone BG700M,800M,950M
General
5.3 Funktion LFL1...
1. Operating switch ON, Thermostat ON, Gas pressure switch ON
(option), Air damper closed.
A control is made that the air pressure switch does not indicate fan
pressure. Then the burner motor starts.
2. Air damper motor opens.
The air damper motor opens the damper to full load. A control is made
that the air pressure switch indicates suficient fan pressure.
3. Air damper motor closes.
The air damper motor closes to low load . Then the ignition spark is
formed.
4. Main and safety valves open
The gas is ignited. The ionization electrode indicates a lame.
5. The safety time expires.
The ignition spark goes out. The safety time expires. If there is no lame
or if for some reason the lame disappears after this time limit, the
burner control locks out.
6. Operating position..
The burner is in operating position and can now change over to
full load if the operating switch and the thermostat for full load are
in positon ON. The burner can alternate between full and low load
depending on set temperature.
7. Stop
The operation of the burner can now be interrupted by means of the
operating switch or the thermostat.
The control locks out.
The red lamp in the control is lit. Restart the burner by pressing the reset
button.