Bartscher Bain-Marie 288.301 Mode D'emploi page 31

REGULATIONS AND SUBSTITUTION FOR USING A
DIFFERENT GAS FROM THE TYPE PROVIDED FOR
Functioning with a different gas from the type provided for.
For changing to another type of gas it is necessary to substitute the nozzle in the main burners and
in the pilot burner, following the instructions given in the following paragraphs. The type of nozzle
to install can be found in tables 2-11. The nozzles for the main burner, marked with the relative
diameter in hundredths, and the ones for the pilot burner, marked with a number, can be found in a
transparent packet attached to the instruction booklet.
When the conversion is completed, check the tightness of the pipe fittings and also that the ignition
and functioning of both the pilot burner and main burner, at minimum and maximum, are correct. It
may be necessary to check the output (power).
Substituting the burner nozzle (fig. 8, 9, 10, pag. 4)
To change the burner nozzle, first of all take off the knobs (1), unscrew the cap nut (2) and remove
the outlet lever (3), then remove the control panel (4) by unscrewing the screws below it. Then
remove the buffer plate (6) fixed to the dividing panel by two cross head screws (5). After clearing
the work area, unscrew the screw (7) that controls the regulation of primary air, open the clamp (8)
completely, and unscrew the nozzle (5) from the nozzle support (6) with a spanner and substitute it
with the nozzle suitable for the type of gas to be used, shown from tables 2 to 11. Put back the
nozzle, tightening it well and proceed to regulate the primary air, as indicated in the next paragraph.
When all this has been done, put back the parts removed previously.
Regulating the primary air of the burner (fig. 8, pag. 4)
After having substituted the burner nozzle, the primary air must be regulated; to do this, loosen the
screw (7) which fixes the air regulation clamp (8), bring value X to the correct measurement,
referring from tables 2 to 11, tighten the screw (7) and check the accuracy of value X.
Substituting the By-Pass (fig. 8, 11, pag. 4)
To substitute the burner nozzle first of all remove the knobs (1), unscrew the cap nut (2) and
remove the drain lever (3), then remove the control panel (4) by unscrewing the screws under it.
When the work area has been cleared, unscrew the By-pass (9) with a screwdriver and substitute it
with the By-pass suitable for the type of gas to be used, shown from tables 2 to 11. Reassemble the
By-pass and tighten it well. Put back the control panel and the knobs.
Substituting the pilot burner nozzle (fig. 8, 12, pag. 4)
To substitute the burner nozzle, first of all remove the knobs (1), unscrew the cap nut (2) and
remove the drain lever (3), then remove the control panel (4) by unscrewing the screws under it, see
fig.8. When the work area has been cleared unscrew the pipe fitting (10) that holds the pilot gas
vent connector (11) and remove the nozzle (12); substitute it with a nozzle suitable for the type of
gas to be used, shown from tables 2 to 11. Reassemble the nozzle and the vent connector, tighten
the pipe fitting firmly, and then put back all the previously removed pieces.
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