25
Fig. 8
Fig. 9
By pass screw
WARNING: Servicing shall only be
carried out by authorised personnel.
Substitution of the nozzles
- Remove the grills;
- Remove the caps and baffles from the
burners;
- With a tubular spanner no. 7 unscrew
and remove (fig. 8) the nozzles
substituting them with those
corresponding to the type of gas used
(see table on page 18);
- Remount the parts carrying out the
operations described in reverse. Upon
completion remove existing gas type
label and stick the relevant gas type label
near the gas supply pipe.
If the pressure of gas used is different (or
variable) from that foreseen an appropriate
pressure regulator should be installed on
the entry tube. In case pressure regulators
for U-LPG are used these should conform
to the regulations in force.
Regulation of the minimum
To regulate the minimum:
- bring the tap to the minimum flame
position.
- extract the knob.
- in case of conversion from natural gas
to U-LPG, tightly screw the by-pass
screw (Fig.9);
- when converting from U-LPG to natural
gas unscrew about ½ turn by-pass
screw, until a regular small flame is
reached.
Finally check that by quickly turning the
tap from the maximum position to the
minimum position the burner is not
extinguished; remount the parts carrying
out the operations described in reverse.
Adaptation to different types of gas
FO 0392
Tap
Burner
Ø By-pass
of tap
1/100 mm
Auxiliary
28
Semi-rapid
35
Rapid
45
Double crown
56
