Description Of Working; Control Box Specifications - baltur TBL 45P Manual De Instrucciones

DESCRIPTION OF WORKING

N.B.
It is not advisable to have too large a burner for the boiler for heating and
for hot water as the burner may work for long periods with a single flame,
making the boiler work at lower than required output; as a result of this
the combustion products (fumes) emerge at too low a temperature (at
about 180° C in the case of heavy oil and 130° C with light oil), causing
soot to build up at the flue. In addition, when the boiler is working at
lower output than that indicated in the technical data, it is likely that
acidic condensate and soot will form in the boiler with the result that it
will quickly corrode and get clogged up. When the two-flame burner is
installed on a hot water boiler for heating use, it must be connected so
that it works normally with both flames, completely stopping without
passing to the first flame when the preset temperature is reached. So
E
that it works in this way, do not install the second flame's thermostat, and
make a direct bridge connection between the equipment's terminals.
N
In this way only the burner's capacity to switch on at low rate is used
for a gentle ignition, which is essential for boilers with a pressurised
G
combustion chamber and also very useful for normal boilers with
L
depression combustion chamber.
The boiler's start - stop is subject to the usual running or safety
I
thermostats.
Switch off the master switch and the I/O switch on the DACA version's
S
electrical panel (see 0002935510). if the thermostats are closed,
H
the voltage reaches the command and control equipment which
starts it working. The fan motor and the ignition transformer are then
switched on. The motor turns the fan that carries out an air wash of
the combustion chamber and at the same time of the fuel pump that
cause circulation in the ducts that expels any gas bubbles through the
return valve. This pre-wash stage ends with the opening of the safety
solenoid valves and the first flame, which allows the fuel at a pressure
of 12 bar to get to the first flame's nozzle and from this to enter the
combustion chamber finely atomised. As soon as the vaporized fuel
leaves the nozzle it is lit by the charge between the electrodes on the
start of the motor. During the first flame ignition the combustion air is
determined by the position in which the the hydraulic control jack is
set (see 0002935420). If the air adjustment servo motor is used (see
0002935210).
If the flame appears normally, with the safety time set by the electrical
equipment passed, this switches on the solenoid valve (closed at rest)
of the second flame (if the air adjustment servo motor is used, see
0002935210). The opening of the 2nd flame allows the light oil, at a
pressure of 12 bar, to reach the 2nd nozzle and, at the same time, the
control piston for the combustion air adjuster moves down to open the
adjuster further. The travel distance of the piston can be registered
with the screw with locking nut, the burner is thus working at full rate.
From when the flame appears in the combustion chamber the burner
is controlled by the photoelectric cell and the thermostats.
Control box and
relativ programmer
GR2

Control box specifications

Safety time Preventilation and
in seconds washing time
5 20
34 / 89
0006081349_200802
The control equipment follows the program and switches the ignition
transformer off. When the temperature or the pressure in the boiler
reaches that set by the thermostat or pressure switch, the latter stops
the burner. Subsequently, when the temperature or the pressure falls
below the closing level of that of the thermostat or pressure switch, the
burner is switched back on again. If, for any reason, during the working
of the burner the flame is lost, after just one second the photoelectric cell
reacts to cut off the power supply from that relay to automatically switch
off the solenoid valves which intercepts the nozzles flow. The switch
on stage is thus repeated and, if the flame ignites again normally, the
burner starts working again normally, if not (if the flame is irregular or fails
to light completely) the equipment goes automatically into lock-out. If
the program is interrupted (due to a power supply failure, manual action
or the intervention of the thermostat, etc.) during the pre-wash stage,
the programmer returns to its starting position and will automatically
repeat the whole of the burner ignition sequence.
Note:
It is clear from the above that the choice of nozzles, depending on
the total capacity (2 nozzles working) desired, must be made taking
into account the capacity corresponding to the working pressure of
12 bar using light oil. It is of course possible to vary within wide limits
the relationship between the first and the second flames by replacing
the nozzles.
Post-starting
in seconds
5
`time between
1st e 2nd flame
5