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combustion are connected and only the charge period is changed by the
position of thermal capacity potentiometer position.
ATTENTION :
The thermal capacity potentiometer should not be in
any case positioned at the maximal value (i.e. in the red zone of the
scale) as this will result in set-point of thermal capacity of the burner,
exceeding its nominal load. The air flow rate, supplied by the fan, is
controlled by the adjustment of the position of the air control flap and
its lever, the position of the flap corresponds to the position of the
thermal capacity control potentiometer, considering its color scale;
When the set-point has been reached, defined by the external control
unit, the control signal will be set off and the START signal will go off
for nominal operation of the burner. The air supply fan will continue to
run for a certain (factory preset) period of time and the remaining fuel
will be incinerated and the remaining ash will be blown away by the air
flow;
When a new START signal has been sent to the burner, the above
described algorithm will be performed in a so called operation cycle;
In case that the START signal goes off (for any reason – room
thermostat for example, etc.) the burner will go into stand-by mode,
following the algorithm, described above;
In case that in stand-by mode the burner receives a START signal, the
control board will perform the above described algorithm in order to
initiate ignition and continue into nominal thermal capacity mode;
In case the first fuel dose is not ignited due to any reason, the control
board of the unit will automatically start new ignition procedure. The
total number of ignition trials is limited to 2 (factory preset value);
In case that during nominal operation the photosensor does not
recognize active combustion process, the initial fuel ignition procedure
is started automatically;
In case the total number of ignition trials has been exceeded, for
example when the fuel in the bunker has been consumed, the burner will
go into alarm mode and the
green
LED will light, indicating that
manual assistance and restart of the unit is required as well. After the
reason for alarm mode has been clarified and overcome, the burner
should be restarted by switching it OFF and back ON from the main
power supply. One can use the power supply of the main unit, which
supplies electrical power to the burner, however
