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USE OF THE BURNER
E
The burner operates fully automatically; it is activated by closing
N
the main switch and the control box switch. Burner operations are
controlled by command and monitoring devices, as described in the
G
Chapter "Description of Operation". The "shut down" position is a
safety position automatically taken up by the burner when a particular
L
part of the burner or of the system is inefficient. Therefore, it is good
practice, before unblocking the burner and starting it up again, to
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check that there are no defects in the heating plant.
S
The length of time that the burner rests in the "shut down" position
is without limit.
H
To unblock the control box, press the appropriate push-button. "Shut
down" can be caused by transitory flaws (a little water in the fuel,
air in the pipes, etc.); in these cases, if unblocked, the burner will
start up normally. When, however, the shutdowns occur repeatedly
(3 or 4 times), do not persist in trying to unblock the burner, first
check that there is fuel in the tank and then call the local service to
repair the defect.
MAINTENANCE
The burner does not require special maintenance, but it is good
practice to perform the following operations at the end of the heating
season:
1)
Remove and wash thoroughly with solvents (petrol, trichlo-
roethylene, oil) the filters, the nozzle, the turbolator disk and
the ignition electrodes. Avoid cleaning the nozzle with metal
instruments (use wood or plastic).
2)
Clean the photoresistant cell.
3)
Have the boiler cleaned and, if necessary, also the chimney.
Note: The nozzle or nozzles should be replaced at least
!
once every heating season. It may be necessary to
do this more often.
DESCRIPTION OF OPERATION OF TWO-FLAME
BURNERS
The two-flame burner always starts up with a reduced (1st flame)
fuel and air output and, after a few seconds, switches to functioning
with a full fuel and air output (2nd flame).
Insertion of the 2nd flame is subject to the consent of the control
box and of the control device (pressure switch or thermostat). When
the burner is operating at full rating, it remains in this position until
reaching the value at which the pressure or temperature has been
set on the control device (pressure switch or thermostat). The control
device trips and disconnects the 2nd flame (fuel and air) when the
value at which it has been set is reached. The burner remains
operating with the 1st flame only.
Normally, the 1st flame alone is not sufficient to maintain the desired
pressure or temperature value and therefore it will decrease until
it reaches the value at which the control device of the 2nd flame
(pressure switch or thermostat) re-connects the total air and fuel
output.
All manuals and user guides at all-guides.com
The burner comes to a complete standstill when, with only the 1st
flame inserted, the pressure or temperature reaches the tripping
point of the control device (pressure switch or thermostat).
The burner starts up again automatically when the pressure or
temperature falls below the value at which the pressure switch or
thermostat has been set.
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