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22
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•
The adjustment of the reduce
rate (simmer) must be undertaken
only with burners functioning on
natural gas while in the case of
burners functioning on L.P.G, the
screw must be locked down fully
(in clockwise direction).
• "Primary air adjustment" on hob
gas burners is unnecessary.
Taps
All gas taps are male cone type with only one
way of passage.
Adjustment of the "Reduced rate"
position as follows (fig. 19):
• Turn the burner on and place the knob on
the "Reduced rate" position (small flame).
• Remove the knob of the tap which is
attached by simply applying pressure to
the rod.
• Insert a small screwdriver
top shaft and turn the throttling screw
left or right until flame of the burner is
conveniently regulated to the low position.
• Check that the flame does not go out when
the knob is sharply switched from the "Full
on" to "Reduced rate" positions.
Attention! This operation can be
carried out also with the front panel
fitted, but
• N.B.: If you find some difficulties to reach
the adjustment screw, remove the front
panel unscrewing 3 fixing screws, which
are positioned in the inferior part of the
same and make to slip downwards.
Fig. 19
Gas information
To tighten some components, see the information
below:
Aluminium pipes to burners, valves,
thermostats:
15 Nm
Thermocouples to top burners cups: 3 Nm
Thermocouples to
Push-on connector: 20 Nm
Injectors: 4 Nm
1
into the
2
1
4 Nm
thermostats:
Conversions
Replacing the injectors
Our burners can be adapted to different
types of gas by simply installing the
injectors suitable for the gas you want to
use.
To change the injectors on the hob,
remove the burner cup and head and with
a 7 mm Ø socket spanner replace them
(fig. 20).
To help the installer, the table on
2
"TECHNICAL INFORMATION" section.
gives the burner nominal heat input,
injector diameter and operating pressure
of the different gas types.
After having replaced the injectors,
it will be necessary to proceed with
burner adjustment as explained in the
previous paragraphs. The technician
must replace any seals after the
adjustments have been made.
Fig. 20
Changing the flexible gas hose
In order to guarantee that the gas hose is
always in excellent condition we strongly
recommend changing it on the date you
will find printed on it.
Replacing the electrical components
• The rear protection will have to be
removed in order to change the
electrical heating elements, spit motor,
terminal board and power cable.
• If you have to change the power
cable (see the cross section
on table in the "TECHNICAL
INFORMATION" section), always
keep the earth wire longer than
the phase wires and, in addition,
follow all the instructions given
in the "Electrical connection"
paragraph.
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