Use Of The Burner - baltur GI 1000 Serie Mode D'emploi

12) As soon as the burner is ignited at low flame (main flame valve open and modulator on minimum) make a visual
inspection of the strength and appearance of the flame, making any corrections required (adjust the gas or air
regulator screws on the modulating disk). The next step is to take a meter reading of the volume of gas put
through the burner (see the "Meter Reading" section). If necessary, a further correction in the gas flow may be
made as described above. Once fuel and air flow are satisfactorily regulated, a check must be made on combustion
characteristics, using the appropriate instruments. If the air/gas ratio is correct the level of carbon dioxide (CO
per unit of fuel put through should be approximately - in the case of natural gas - 8% at minimum burner output,
rising to an optimum 10% at maximum output. We recommend that the value of 10% should not be exceeded, as
operation in too limited an excess of air can give rise to unacceptable carbon monoxide (CO) levels (due to
variations in atmospheric pressure, or dust deposits in the air lines). It is essential to verify, using the appropriate
instrument, that the percentage of CO in flue gases does not exceed the maximum permissible level of 0,1%.
13) After having regulated gas throughput for the minimum flame setting, set the modulation switches to "MAN"
(manual) and "MAX" (maximum).
14) The modulating servo-motor will now start up. wait until the modulator disk has moved through an angle of about
12° (corresponding to the space occupied by three screws) and then interrupt modulation by turning the switch
back to "O". Make a visual check on the flame and if necessary regulate gas and air throughput rates using the
regulator screws on the modulator disk. This procedure must be repeated throughout the whole modulation
travel of the disk, making adjustments in air and gas throughput at 12° intervals. It is important to check that the
gas and air flows rates rise gradually and that maximum rates are obtained at the end of the modulation range.
This conditions is essential to ensure that the modulation provides smooth and gradual increase or decrease in
burner output. If necessary, change the position of the screws controlling fuel throughput to obtain this result.
15) At this point, with the burner providing the maximum heat output required by the boiler, check combustion
using the appropriate instruments and, if necessary, modify the previous setting made solely on the basis of
visual inspection. (CO
16) It is very important to carry out an instrument assisted check on combustion and modify, where necessary, the
initial visual setting, this must also be effected in a series of intermediate positions of the modulation range.
17) Now check that the modulation system is operating correctly by turning the AUT - O - MAN switch to "AUT" and
the MIN - O - MAX switch to "O". With this setting the modulation function will cut in automatically only in
response to requests from the boiler detector. Under normal conditions there will be no need to alter the
internal adjustment of the RWF 40 controller; in case this should become necessary, however, instructions
have been included under a separate heading in this manual.
18) Check that the flame supervision device (UV photocell) is operating correctly by sliding it out of its seat on the
burner and checking that the burner effectively locks out.
19) Check that the boiler thermostats or pressurestats are operating correctly they must cause the boiler to shut
down when they cut in.

USE OF THE BURNER

The burner operates fully automatically: it is activated by closing the main switch and the control board switch.
Burner operations are controlled by commend and control devices, as described in the chapter "Description of
Operations". The "shut down" position is a safety position automatically taken up by the burner when a particular
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 check that there are no defects in the heating plant.
The length of time that the burner rests in the "shut down" position is without limit.
To unblock the control box, press the appropriate pushbutton. "Shut down" can be caused by transitory flows (a
little water in the fuel, air in the pipes, etc.); in these cases, if unblocked, the burner will start up normally.
When, however, 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.
SERVICING
The burners do not require particular servicing, it is good practice, however, that authorized personell performs the
following operations, at least at the end of the heating season:
1) Clean to photocell
2) For gas burners, periodically check that the gas filter is clean.
3) Clean the combustion head by dismantling the blast pipe into its component parts. Take care during reassembly
that the ignition electrode is correctly positioned, checking that the spark jumps only between the electrode
and the central drilled pilot flame disk.
max. = 10% which corresponds to an O
2
value of about 3% - CO max. = 0,1%).
2
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