Technical data

38
GB
5938 034 01
C
AIR-BREAK
O
KO
6. GAS CONNECTION
6.1 WARNINGS
• Make sure the appliance is set up for the type of gas with
which it will be supplied, if it is not, follow the instructions in
chapter 7 "Conversion to a different gas type".
• The gas inlet connector is yellow in colour.
• Before installing consult your local gas utility company to check
the compatibility between the available supply and the
consumption of the appliance.
• Before hooking up the appliance to the gas pipeline remove the
plastic protective plug from the gas connector.
• Fit a rapid gas shut-off cock upline from the appliance in an
easily accessible position.
• On completion of installation, use soapy water to check gas
connections for leaks.
• It is not possible to adjust the combustion air ventilation
capacity.
• If the appliance is hooked up to a supply with a different gas type
with respect to the factory setting, after making the necessary
changes check that it is working correctly (see heading 8 "Operation
Check").
6.2 NOMINAL HEAT OUTPUT
For data concerning the nominal heat output refer to "Technical
Data" in Table 1.
This parameter is determined by the pressure of the gas supply and
the diameter of the gas valve diaphragm (nozzle).
The appliance nominal heat output must always be checked (by the
authorised installer or by the gas utility company), both in the case
of new installations and conversion to a different gas type or
following maintenance work.
It is strictly prohibited to make changes to the nominal heat
output.
6.3 CHECKING THE SUPPLY PRESSURE (Fig. 2a)
The gas supply pressure must be measured upline from the gas
shut-off cock with the appliance operating (following conversion
operations in the event of a different type of gas supply), using a
pressure gauge with minimum resolution of 0.1 mbar and
proceeding as outlined below:
1) Remove the left hand side panel to gain access to the gas valve;
2) Loosen sealing screw "C" from the gas valve pressure test point
and connect the pressure gauge hose in its place;
3) Open the gas shut-off cock;
4) Start a mixed cooking cycle (see "Instructions for use") in
such a way that all the burners can be lit;
5) Check that the pressure reading is within the values given in
the following table:
GAS TYPE PRESSURE (MBAR)
Nom. Min. Max.
G20 natural gas
G31 L.P.G.
20 17 25
37 25 45
for Japan
G20 natural gas
G31 L.P.G.
13 10 25
25 20 33
PRESSURE (KPa)
for AUSTRALIA
Natural gas
L.P.G.
If the values are not within the values shown in the table the
appliance will not function.
In this case inform your gas utility company of the problem;
6) Once you have measured the supply pressure stop the cooking
cycle and close the gas shut-off cock.
7) Disconnect the pressure gauge and carefully refit and tighten
sealing screw "C";
8) Refit the previously removed side panel.
7. CONVERSION TO A DIFFERENT GAS TYPE
Warning: Conversion to a different type of gas
the appliance is factory set for a specific gas type as specified
on the stickers affixed to the packing and to the appliance. To
convert the appliance for use with a different gas type adhere
strictly to the procedure outlined below.
7.1 ACCESS TO COMPONENTS
• Remove the appliance left hand side panel.
7.2 REPLACING THE BURNER-BLOWER REDUCER
(PLATE)
(Fig. 2b)
The reducer (plate) must be replaced for gas G30 and G31
(LPG) only in some models as specified in the TABLE 2 (following
pages). The diameter of the middle hole of the reducer is given
in mm.
• Unscrew the 2 nuts “F” fixing plate “L” to burner “H”.
• Unscrew the 4 nuts “F” fixing blower “G” to burner “H”.
• Replace plate “L” (including the 2 gaskets “M”) with the plate
for gas G30 and G31 (LPG)
• Insert the 2 pins “L1” of plate “L” in the 2 slots “H1” and retighten
the 2 nuts “P” (with corresponding washers).
• Retighten the 4 nuts “F” (with corresponding washers).
7.3 REPLACEMENT OF THE GAS VALVE DIAPHRAGM
(NOZZLE) (Fig. 2a)
• Unscrew the hex nut of connector "A" with the relative seal "A1"
and replace diaphragm "B" (nozzle) with the specific component
in relation to the type of gas to be used for relative burner
(convector or boiler) and the model of oven in question (see Table
2 - following pages). The diaphragm (nozzle) diameter shown in
hundredths of a millimetre is marked on the body of the diaphragm
(e.g. diameter 3.5 mm, marking: 350)
• Fully tighten connecting hex nut "A" with the relative seal "A1".
• Repeat the above operations for the other valves (if present)
and proceed with the indications specified in the next heading.
7.3.1 PARAMETER ADJUSTMENT
• Change the electronic card parameters relevant to the burner
fan control as indicated in the SERVICE MANUAL (not supplied).
7.4 GAS VALVE ADJUSTMENT (Fig. 2a)
Note: the adjustments described below must be performed
exclusively by a technician authorised by the manufacturer.
To adjust the pressure (negative) of the gas valve, adapting it to a
different type of gas with respect to the factory set type, proceed as
follows:
Nom. Min. Max.
1 - -
2.75 - -