23
LEFT and RIGHT OVENS
Regulating of the oven
minimum
This needs to be done only for the
oven burner (the grill of the left oven
is a fixed capacity) by acting on the
thermostat.
Considering that in the minimum posi-
tion the flame must have a length of
about 4 mm and must remain lit even
with a brusque passage from the max-
imum position to that of minimum.
The flame adjustment is done in the
following way:
– Light the oven taking the knob to
max. position
(230
)
.
– remove the knob and by a thin screw-
driver (3 mm section - 100 mm long)
unscrew of about a half turn the
screw by-pass G, passing through
the front panel hole (fig. 3.16)
– fit the knob and let the oven heat for
10 minutes, then take the knob to
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 flame reaches 3-4 mm high.
N.B. For LPG the by-pass screw must
be fixed thoroughly.
Fig. 3.16
Flame correct
Flame faulty in
primary air
Flame with excess
primary air
G
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
