8
3.6.2 Replacing the pilot nozzle and adjusting its primary air
For each pilot burner, consult technical data on table 3, see Fig. 5 and proceed as follows
•
Access to the pilot burner after removing the cooking grids, the radiant elements, the drawers and
frontal or rear panels.
•
Remove the tightening cap “ B “, extract and change the pilot nozzle “ U “ with the one for the new
gas type.
•
Adjust correctly the pilot flame primary air by turning the ring nut “ G “
until the flame is stable and
according to pictures (50 % for G20 and G25 gases and 100% for liquid gas G30/G31).
•
Then replace all the components in the reverse order.
3.6.3 Adjusting the minimum rate on gas valve through the by-pass screw
The nozzle of the valve by-pass screw has a hole of 1,10 mm Ø and for the gas G30/G31 must be fully
screwed down. Procced in the same way for each burner. For the other gases G20 and G25, the by-
pass screw must be unscrewed for 1 complete round (turning the screw anti-clockwise) until a clear and
regular flame appears. To regulate the by-pass, turn on the burner to the minimum setting, remove the
handle grip of the valve and regulate the by-pass screw marked with “ A “ in the adjacent Figure 6.
Fig. 6_By-pass screw
B
G
P
U
T
C
B = Tightening cap
C = Sparking plug
G = Air ring nut
P = Pilot burner
U = Pilot nozzle
T = Thermocouple
Fig. 5_Pilot nozzle change
