Instruction manual for installation and operation of automatic pellet burner “ERATO GP20+”
(Version :
02.02.2010 10:36
)
p.
14/50
3.2.
Specific design measures in order to increase the safety operation of
the burner
•
The ignition and the combustion process is monitored by microprocessor
control board;
•
The ignition process is monitored and in case that the fuel is not ignited
for some reason, after certain number of ignition trials, the operation of
the burner is stopped and alarm mode is indicated;
•
In case that fuel is consumed from the hopper, than after the defined
number of ignition trials the burner will go out in stop mode and alarm is
indicated as well;
•
The flexible hose, which connects the fuel transport auger with the main
unit, is transparent and is made of specific heat resistant material;
•
Information stickers are applied, indicating certain precautions measures
and correct operation of the unit;
•
The burner is equipped with safety elements, which are involved in back
fire protection system:
o
Free falling duct, which practically interrupts the fuel flow between
the transport auger and the main module. This duct is
approximately 250mm long. Beside that, the fuel auger is
connected to the main unit by a flexible hose, which does not
contain fuel. The grate of the burner is however charged with
controlled amount of fuel, which is utilized at controlled
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).
