Manuale d’istruzione per l’installazione, la manutenzione e l’uso
Brasiere a gas ribaltabili BS80.G7 / BS8.G7
05.11.02
pagina
54
2.2.3. GAS CONNECTION PROCEDURES
The choice of the gas piping depends on the diameter required for the type of gas, appliance and
installation and should be performed in conformity with current regulations.
The gas feed plant can either be fixed or be disconnected; if flexible pipes are employed they must be
made from stainless material and not be affected by corrosion.
If sealing materials are used for connections, they must be certified and approved for the purpose.
The gas fitting is located on the lower right side of the appliance
Once the appliance has been connected, carry out a leakage test on all the fittings connecting the
appliance to the plant. It is advisable to use a leakage spray, otherwise treat the parts with a foam that
does not produce corrosion; no bubbles should develop. Carry out the leakage test also on the rapid cut-
off valve.
Warning! :
Flames are strictly prohibited for leakage tests!
2.3. CHECKING THE OPERATION OF THE GAS SYSTEM
Check that the appliance has been prepared (category and type of gas) equivalent to the family of gas
available on site. If not, it is necessary to convert the appliance to whatever is available. See the
paragraph “
Conversion to other types of gas
”.
The appliance must be used with the correct injectors for its thermal power rating (See table 3 in the
“
Technical data
”).
The operation of the appliance with its heating capacity depends on the inlet pressure and the calorific
power of the gas.
The pressure range (inlet pressure) within which the appliance is allowed to operated is stated of the
paragraph “
Technical Data
”.
The appliance shall not be operated out of the given pressure range.
If
pressure should differ from the figures stated in table 6b, advise the gas board or the company which has
installed the system.
Power rating with G30
The power rating is achieved by using the injectors
indicated in the table without any preliminary
regulation.
The possibility of operation depends on the supply
pressure available:
admitted
if inlet pressure is within the
range
20-35
and 25-45 mbar.
non admitted
if the pressure is
lower
than 20-25 mbar
or
higher than 35
-
45 mbar
.
Inform the installer and do not start operation
before the cause has been found and eliminated.
Power rating with G20
The power rating is achieved by using the injectors
indicated in the table without any preliminary regulation.
The possibility of operation depends on the supply
pressure available:
admitted
if supply pressure is within the
range
17 and 25 mbar
non admitted
if the pressure is
lower than 17
mbar or higher than 25 mbar.
Inform the installer and
do not start operation before the cause has been found
and eliminated.
-
The power rating for the maximum position is obtained in all the burners when the right injectors have
been installed. Compare the injectors installed with those indicated in table 2.
-
There is no the minimum power because the main burners work in ON/OFF.
-
Request the heat value to the gas supply board
and control the injectors according to the data indicated
in table 3.
