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controlled amount of fuel, which is utilized at the combustion
process and possibility of back fire is strongly reduced;
o
Sensor of “back fire” alarm thermo-probe, which is positioned on
the fuel delivery pipe of the main unit, activates at surface
temperature levels above 90 – 95
o
C. In case of alarm thermo-probe
activation, the main unit and the fuel transport auger are stopped
and switched to alarm mode. This mode is indicated by appropriate
signals of the LEDs on the control board of the main unit.
The
alarm mode is not automatically deactivated and needs manual
restarting. The cause of the alarm situation should be clarified and
precaution measures should be taken before restarting the burner
(performed by switching OFF and back ON the main power supply
of the burner);
o
Reversible liquid crystal thermo sticker, which shows the operating
temperature in the zone around the sticker, considered as
characteristic for the condition of the burner and the heating system
in total. In indirectly indicates the need for ash deposition cleaning
of the heating appliance as well as the chimney;
