Maximum Gas Pressure Switch - Riello RS 68/EV O2 ULX Installation, Use And Maintenance Instructions

Start-up, calibration and operation of the burner
5.5.2

Maximum gas pressure switch

Adjust the maximum gas pressure switch (Fig. 35) after making
all other burner adjustments with the maximum gas pressure
switch set to the end of the scale.
To calibrate the maximum gas pressure switch, open the tap and
then connect a pressure gauge to its pressure test point.
The maximum gas pressure switch must be regulated to a value
no higher than 30% of the measurement read on the gauge when
the burner is working at maximum output.
After making the adjustment, remove the pressure gauge and
close the tap.
37 GB
20205796