Operation Manual

41
Flame correct
Flame faulty in
primary air
Flame with exces s
primary air
LEFT and RIGHT OVENS:
REGULATING OF THE OVEN BURNER
MINIMUM
In the minimum position the ame must
have a length of about 4 mm and must
remain lit even with a brusque passage
from the maximum position to that of
minimum.
Left oven: to be effected only for the oven
burner (as the grill burner has an only xed
input).
The ame adjustment is done in the
following way:
• Light the oven taking the knob to
maximum position (
).
• Remove the knob and by a thin
screwdriver (3 mm section - 100 mm
long) unscrew of about a half turn the
screw by-pass “G”, passing through
the front panel hole (g. 10.12)
• Fit the knob and let the oven heat
for 10 minutes, then take the knob to
minimum position (130) allowing the
thermostat to work under by-pass.
• After further removal of the knob, stop
slowly the screw by-pass “G” (being
careful not to turn the knob rod) until
the ame reaches 3-4 mm high.
Normally for LPG, tighten up the
regulation screw.
Flame faulty
in primary
air
Flame
correct
Flame with
excess
primary air
long, yellow
and trembling
clear interior
blue cone
short and sharp
too blue interior
cone tending to
detach
CAUSE
air regulating
tube, too
closed
correct
distance of
the tube
air regulating
tube, too
open
G
Fig. 10.12