Gastrodomus FG11 Bedienungsanleitung Seite 10

ventilation ducts, please consult the above standards, paying particular attention if there are other gas
appliances installed in the same room.
This appliance is classified as type A1 construction; this means that no direct connection is envisaged (by
chimney or junction) to the flue or to devices for discharging the by- products of combustion outside the place
where the appliance is installed; for these appliances, the comburent air can be supplied and the by-products
of combustion can be discharged in the same room. For this reason, the appliances should be installed
under efficient air extraction hoods that can remove the burnt gases and fumes produced when cooking
food, preventing the formation of substances that are bad for the health of the operators. Make sure that the
volume of air required for combustion isn't obstructed in any way by objects around or under the appliance.
Position the appliance on a perfectly level table and fix it solidly to the workbench with the two brackets (Fig.
3).
We recommend always keeping the appliance a distance of at least 5 cm from the side and rear walls and, if
this is not possible, protecting the walls with refractory sheets or fire-resistant materials.
Before turning the appliance on, remove the protective film covering the appliances exterior walls.
2.2 Connecting the appliance to the gas mains
Before you connect the appliance to the gas mains, check that the fixed part of the gas system is
conform to the prescriptions established in the above standards. In particular, check that the sections of the
pipes guarantee a supply of gas that is sufficient for all of the gas appliances installed in the room avoiding
excessive pressure drops. The pipes must be made of steel (with junctions made using white cast iron, or
galvanised steel fittings, or
couplings without seals or mastics or brazed joints).
Check that the gas bottle (if present) is positioned correctly and protected and that the visible pipes can
easily be inspected; if pipes have been installed in chases (in floors and walls), make sure that this work
has been done to a professional standard with reference points that make it possible to find the pipes.
Before installing the appliance make sure that it is set for the gas used. if this is not the case, consult
the paragraph "Adapting the appliance to other gases" or contact the technical service of the manufacturer.
The appliance must be connected using rigid fittings or flexible steel pipes that shouldn't put any stress on it.
These must be as short as possible and in any case no longer than 1 m.
Make sure that the connecting pipe doesn't pass near hot zones, that it isn't put under stress and
traction and doesn't come into contact with sharp objects, edges or other things that could damage the pipe.
Install a quick on/off valve between the gas mains and each single appliance, in a place where it is easy
to reach and turn. After you have installed the appliance, carry out a pressure test on the whole gas
circuit, using leak finder sprays or other non-corrosive foams (don't use naked flames to look for leaks).
2.3 Checking the gas mains pressure and the nominal heat input
The mains pressure is measured, with the appliance on, using a pressure gauge (for example a manometer).
Connect manometer E to the pressure outlet on gas fitting G after having removed the screw cap (Fig. 4)
and measure the pressure; if this is not between the min. and max. values indicated in the following table 1,
the appliance cannot be put into service. The gas company must be informed.
Table 1
TYPE OF GAS
Liquid Gas LPG G30/G31
Methane gas G20
Before measuring the nominal heat input, check that the right injector for the type of gas supplied by the
mains is installed and that the pressure is within the limits in the previous table. You control the heat input
using a counter and a chronometer. You have to measure the exact gas flow per unit of time, that is
consumed when the appliance is working at maximum power. This measurement should be compared to the
consumption data in technical table 4. A tolerance of ± 5 % is allowed for this capacity.
If you are measuring top deviations, you should carefully check the diameter and the quality of the injector
(for the absence of burs for example) and the pressure of the gas mains.
2.4 Adapting the appliance to other gases
The components for adapting the appliance to other gases are supplied with the same.
ATTENTION - The appliance should only be adapted by a professionally qualified technician. Only adapt the
appliance after you have turned the gas off with the on/off valve upstream and let the appliance cool.
autogenous welded joints) or
PRESSURE mbar
Nom. Min. Max.
28/37 20/25 35/45
20 17 25
copper pipes (with mechanical joints and
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