30
GAS SECTION
5
5
GAS CONNECTIONS
Make sure that the hob is adapted to function with the type of gas supply available (see
label). If not, refer to the section headed “Adapting the appliance to function with diffe-
rent types of gas”.
GASES
The gases used for the operation of cooking appliances may be grouped by their cha-
racteristics into two types:
✓
Butane/Propane gas (in cylinders)
G30/G31
✓
Natural gas
G20
Connecting to gas mains:
✓
Cat:
II
2H3+
Cooktop connection:
Type 1 connection
(fig. 5.1a)
or
Type 2 connection
(fig. 5.1b)
✓
nut “A”
✓
nut “A”
✓
cylindrical elbow “C”
✓
conical elbow “C”
✓
conical adaptor “G”
✓
gasket “F”
✓
gaskets “F”
Connection to the gas main must be performed by a qualified technician, in compliance
with the current laws in force.
Type 1 connection: Before connecting the appliance to the gas main, mount conical
adaptor “G” (supplied with appliance) onto the elbow “C,” upon which the washer “F”
has been placed.
To maintain the thickness of 3 cm, the hob is fitted with a channel to contain the
connection pipe.
The gas inlet union can be turned in the direction required after the union elbow “C”
- nut “A” connection has been slackened (Fig. 5.2).
Never put it in the horizontal or vertical position.
GB
Fig. 5.2
IMPORTANT:
✓
Never turn union “C” using force without first slackening nut A.
✓
Gaskets “F” (Fig. 5.1) guarantee the seal of the gas connection.
Replace them whenever they are even slightly deformed or imperfect.
✓
Any connection to fixed metal pipes must be done in such a way so as not to place
undue stress on the hob chassis.
✓
If using flexible metal pipes, make sure they are not squashed, and do not come
into contact with moving parts.
✓
Any flexible pipes must be so installed as to be easily inspected along their whole
length. They must be changed before the expiry date (printed on the pipe itself)
and not exceed 2 metres in length.
✓
After connecting to the gas mains, check that the couplings are correctly sealed,
using soapy solution, but never a naked flame.
ADAPTING THE APPLIANCE TO FUNCTION WITH DIFFE-
RENT TYPES OF GAS
If a gas different from that indicated on the label is used, adapt the cooktop to this new func-
tion.
Every cooking hob is provided with a set of injectors for the various types of gas.
Injectors not supplied can be obtained from the After-Sales Service.
Select the injectors to be replaced according to the TABLE FOR THE CHOICE OF
THE INJECTORS.
The nozzle diameters, expressed in hundredths of a millimetre, are marked on the
body of each injector.
1/2" G
conical
Fig. 5.1a
F
C
A
G
F
1/2" G
conical
Fig. 5.1b
F
C
A
Type 1 connection
Type 2 connection
