Pag. 40 di 69
5 GAS UNIT
5.1 SIT 845 SIGMA GAS VALVE.
The gas valve mounted is a SIT 845 SIGMA valve fitted with two operators supplied at 220VCA that consent
or cut off the gas supply to the main burner. A low voltage (24V) modulator is mounted on the valve to
regulate the outgoing gas pressure of the valve according to the readings detected by the electronic P.C.B.
via the temperature probes. The modular is used for both natural and liquid gas. The valve is also fitted with
component NAC504 that has the function of powering both the main burner ignition transformer and valve.
The valve is prearranged to work with different types of gas without having to replace any part, but need only
to change the nozzle. The maximum inlet pressure with which the gas valve can work is 60mbar.
5.2 SOLENOID VALVE ELECTROPNIC CONNECTION DIAGRAM.
1 inlet pressure gauge
2 outlet pressure gauge
3 min power adjusting screw
4 max power adjusting nut
To Next Page
Loading...
