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Adapting the hob for Different Types of Gas
To adapt the hob to a different type of gas than that for which
it was designed, (see the sticker under the hob or on the
packaging), the burner nozzles must be changed, as follows:
•
Remove the pan supports and slide the burners out of the
cooktop.
•
Unscrew the nozzles using a 7mm socket wrench and
replace them with those for the new type of gas. (See
table 1, "Burner and Nozzle Specifications").
•
Reassemble the parts following the instructions in reverse
order.
•
On completing the operation, replace the old rating label
with the one showing the new type of gas; the sticker is
available from our Service Centre.
If the gas pressure is different than that prescribed, a pressure
regulator must be installed at the source, in compliance with
national standards governing the use of piped gas regulators.
Regulation of Air Supply to the Burner
The burners do not need a primary air regulator.
Minimum Regulation
•
Turn the gas valve to minimum.
•
Remove the knob and turn the regulator screw (positioned
Characteristic of the burners and nozzles
Table 1
Burner
Diameter
(mm)
Fast (R)
100
Semi Fast (S)
75
Auxiliary (A)
55
Triple Crown (TC)
100
Supply
Pressures
*
At 15°C and 1013 mbar-dry gas
**
Propane P.C.S. = 50.37 MJ/kg.
***
Butane P.C.S. = 49.47 MJ/kg.
Natural P.C.S. = 37.78 MJ/m
Thermal power
kW (p.c.s.*)
Nomin.
Ridot.
3,00
0,70
1,90
0,40
1,00
0,40
2,50
0,80
Nominal (mbar)
Minimum (mbar)
Maximum (mbar)
3
either on the side of the top or inside the shaft) clockwise
until the flame becomes small but regular.
N.B.: In the case of liquid gas, the regulation screw must be
fully screwed in (clockwise).
•
Make sure that, when the knob is turned rapidly from high
to low, the flame does not go out.
•
In the event of a malfunction on appliances with the
security device (thermocouple) when the gas supply is
set at minimum, increase the minimum supply levels using
the regulator screw.
Once the adjustment has been made, apply sealing wax, or
a suitable substitute, to the old seals on the by-pass.
Liquid Gas
By-Pass
Nozzle
1/100
1/100
(mm)
(mm)
41
86
218
30
70
138
30
50
48
83
182
28-30
9
Natural Gas
Flow*
Nozzle
g/h
1/100
***
**
(mm)
214
116
136
106
73
71
79
179
124
37
20
25
35
45
Flow*
l/h
286
181
95
238
20
17
25
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