
27
Injectors replacement
• Remove the pan supports.
• Remove the burner's caps and crowns.
• With a socket spanner 7 unscrew and remove the
injectors (Fig. 7), and replace them with the ones
required for the type of gas in use (see table 2).
• Reassemble the parts, following the same procedu-
re backwards.
• Replace the rating label (placed near the gas supply
pipe) with the relevant one for the new type of gas
supply. You can find this label in the package of the
injectors supplied with the appliance.
Should the feeding gas pressure be different or variable
compared with the required pressure, an appropriate
pressure adjuster must be fitted on the gas supply pipe,
in compliance with the rules in force.
Adjustment of minimum level
To adjust the minimum level of the burners, proceed as
follows:
• Light the burner.
• Turn the knob on the minimum position.
• Remove the knob.
• With a thin screwdriver, adjust the by-pass screw
(see Fig. 8). If changing from natural gas to liquid
gas, completely tighten clockwise the screw, until
a small regular flame is obtained. If changing from
liquid gas to natural gas unscrew about 1/4 turn the
by-pass screw, until a small regular flame is obtained.
• Finally check the flame does not go out when
quickly turning the knob from the maximum position
to the minimum position.
This procedure can easily be carried out, anyhow the hob
has been positioned or built in the working top.
Fig. 7
Burner Ø By-pass
in 1/100
of mm.
Triple crown 56
Rapid 40
Semi-rapid 32
Auxiliary 28
Table 1 : By-pass diameters
Table 2 : injectors
Fig. 8
Adaptation to different types of gas
""
""
"
""
""
"
By-pass screws
TYPE TYPE OF INJECTORS NOMINAL REDUCED NOMINAL NOMINAL
OF GAS BURNER MARKS POWER POWER POWER PRESSURE
1/100 mm INPUT k W mbar
KW m
3
/h g/h
Triple crown 146 4,0 1,20 0,381 -
Rapid 113 2,8 0,65 0,267 - 20
Semi-rapid 96 2,0 0,45 0,190 -
Auxiliary 70 1,0 0,33 0,095 -
Triple crown 98 4,0 1,20 - 288
Rapid 86 2,8 0,65 - 202 28-30/37
Semi-rapid 71 2,0 0,45 - 144
Auxiliary 50 1,0 0,33 - 72
NATURAL
GAS
LIQUID
GAS
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