CombiSteel 7478,0515 Manuel D'utilisation Et D'entretien page 11

2)Raplace the main burner nozzles with disered gas type nozzle according to nozzle daimeter chart.
Primary air
a
-adjustment of the diffuser for gas types
G20-20 mbar:a=15 mm
G30-30 mbar:a=12 mm
G31-37 mbar:a=12 mm
G20-25 mbar:a=7mm
G30-50 mbar:a=12 mm
Main
burner
nozzle
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