5
5
GASES
The gases used for the operation of cooking appliances may be grouped by their char-
acteristics into two types:
Butane/Propane gas
(in cylinders)
Natural gas
The hob is ready and factory-set to run on the gas indicated on the characteristics
plate mounted on the appliance, and printed in the instructions manual
GB
IE
Connecting to gas mains:
II
Cat:
2H3+
The cooktop connection (fig. 5.1) is made up as follows:
1 nut "A"
1 elbow "C"
gaskets "F"
1 conical elbow "G"
Connection to the gas main must be performed by a qualified technician, in compliance
with the current laws in force.
Before connecting the appliance to the gas main, mount conical joint "G" (supplied with
the appliance) onto the elbow "C," upon which the washer "F" has been placed.
The gas inlet union can be turned in the direction required after the union elbow C -
nipple A connection has been slackened (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.
If using flexible metal pipes, make sure they are not squashed, and do not come
into contact with moving parts.
Any connection to fixed metal pipes must be done in such a way so as not to place
undue stress on the hob chassis.
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 DIFFER-
ENT 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.
GAS SECTION
G30/G31
G20
C
F
A
1/2" G (cylindrical)
F
C
F
F
B
(only for the
United Kingdom)
1/2" G
conical
Fig. 5.2
Fig. 5.1a
A
Fig. 5.1b
37