• 58 •
G20 20,0 +/- 1 1,5 +/- 0,03 8,4 +/- 0,2
G25 25,0 +/- 1,3 2,25 +/- 0,05 12,3 +/- 0,2
G31 NA NA NA
2,90 kΩ 1,69 kΩ
BALTIC-IOM-0412-E / Service manual
MODULATING GAS BURNERS
Low heat injection pressure checks
• switch the control to low heat
• check and adjust if necessary the outlet pressure to 1,5 mbar
minimum (G20) (or 2.25 mbar for G25)
• after the adjustment of the low heat, re-verify the high heat
• re-position the stoppers and close the pressure ports.
Valve electrical control
Pressure adjustments table for each type of gas (mbar)
Category
Supply
pressure
Low heat
injection
mini.
High heat
injection
• after the adjustment of the low heat, re-verify the high heat
• re-position the stoppers and close the pressure ports.
• check these values with an ohmmeter.