Ariston GENUS PREMIUM EVO 24

Training manual ALTEAS & GENUS ONE
Page. 49 of 88
6.6 BERTELLI SGV GAS VALVE
The gas valve mounted is a BERTELLI SGV , fitted with two operators supplied at 24 VDC.
The gas valve is composed by 2 safety operators: the first is an ON / OFF solenoid class B, the second one
is used as safety operator class C that is used to drive the “balanced pressure valve” that adjust the outlet
gas flow, from min to the max rate, according to the modulation current supplied by the electronic board. This
second operator provides also to stabilize the outlet gas pressure.
No mechanical adjustments are required.
The valve is prearranged to work with different types of gas without having to replace any part. The
maximum inlet pressure is 65mbar.
CAPTION
1
Gas inlet ¾’
2
Inlet pressure test point
3
Solenoid EV1 ( ON/OFF safety
valve)
4
Solenoid EV2 (safety valve and
gas modulation)
5
Balanced pressure regulator
6
Proportional pressure regulator
7
Outlet pressure test point
8
Gas outlet ¾’
9
Electrical connection
10
Fixing holes
1
4
2
3
1 – 3 : EV1  27Ω  6,5 Vdc
2 – 4 : EV2  60Ω  8÷11 Vdc