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Airtight gas convectors
3.5 Gas line connection
SYSTEMA S.p.A.
The gas line connection must be made with respect to the regulations in force.
a) The device cannot withstand pressures of higher than 40 mbar (0,04 bar) without risking
the breakage of the gas valve membrane.
b) Always use ball valves and flexible joints for gas when connecting the devices.
c) Gas supply line pressure adjustment: all the devices are tested and calibrated at the
Manufacturer’s factory for their respective operating pressures (see the data provided in
the table).
In order to check burner pressure (Methane gas), use the pressure tap (4) at the valve outlet
point (See Draw ) after first removing the closing screw; whenever the burner pressure
values do not correspond, calibration must be performed (with the burner in operation) by
using the pressure adjustment screw (9) until the nominal value is reached.
For LPG gas (Butane-Propane), the gas valve pressure regulator must be disabled by
screwing the pressure adjustment screw (9) all the way down. The gas supply pressure can
be checked by using the pressure tap (5) at the valve inlet point (with the burner in operation);
whenever the gas supply pressure values do not correspond, calibration must be performed
(with the burner in operation) by using the pressure regulator positioned upstream from the
device.
After these pressure adjustment operations have been completed, remember to close the
pressure taps located on the gas safety valve using the respective screws.
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Rev. 05IT0112-1