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a) Replacement of main burner nozzle
•
In order to obtain access to the nozzles brackets remove the cast iron grates,
burners covers, burners bodies, and dripping trays.
•
Unscrew the fixing bolt for the primary air adjustment.
•
Replace the removed nozzle with the one designed for a given gas type (nozzle
data are in Table 2 “Properties of nozzles and burners” on page 35).
•
Modify all burners according to the above instructions.
b) Replacement of ignition burner nozzle
•
Use 11 mm wrench to unscrew the closing bolt of the ignition burner.
•
Use the flat screwdriver to remove the ignition burner nozzle.
•
Replace the removed nozzle with the one designed for a given gas type and
make required adjustments (nozzle data are in Table 2 “Properties of nozzles
and burners” on page 35).
•
Modify all ignition burners according to the above instructions.
c) Setting of primary air
•
Adjust the primary air according to Table 2 “Properties of nozzles and
burners” on page 35).
•
When the primary air is adjusted correctly the flame is stable, so there will be no
interruptions when the burner is cold or back burning when the burner is hot.
d) Ignition burner adjustment
•
Adjust the ignition burner and see if the flame is correct and covers the
thermal element. If not, see if correct nozzles are installed (Table 2
“Properties of nozzles and burners” on page 35).
