19
3) Unscrew the nozzle
R
(Fig. 10) using a 7 mm spanner and replace it with the nozzle needed for the new type of gas
according to what is indicated in Table 1.
Follow the instructions below to change the grill burner nozzle:
1) Loosen the screw
A
and pull out the burner from the support being careful not to damage the ignition plug and the
thermocouple (Fig. 11).
2) Unscrew the nozzle
C
(Fig.11) using a 7 mm spanner and replace it with the nozzle needed for the new type of gas
according to what is indicated in Table 1.
WARNING: After completing the above-mentioned replacements, the technician must adjust the burners, as
described in the paragraph below, seal any adjustment and pre-adjustment devices and apply the label on the
appliance, to replace the existing one, corresponding to the new gas adjustment. This label is contained in the
spare nozzle bag.
TABLE N°1: Adaption to various types of gas
APPLIANCE CATEGORY:
II
2H3+
Burner
Types of Gas
Pressure Nozzles
Rater Capacity
Reduce
Diameter
by-pass
Diameter
Capacity
mbar
1/100mm.
g/h
l/h
kW
kcal/h
kW
kcal/h
1/100 mm.
Natural G20
20
72
-
95
1
860
0,48
413
34
Auxiliary Butane G30
28-30
50
73
-
1
860
0,48
413
34
Propane G31
37
50
71
-
1
860
0,48
413
34
Natural G20
20
97
-
167
1,75
1505
0,6
516
36
Semi-Rapid Butane G30
28-30
65
127
-
1,75
1505
0,6
516
36
Propane G31
37
65
125
-
1,75
1505
0,6
516
36
Natural G20
20
115
-
286
3
2580
1,05
903
52
Rapid
Butane G30
28-30
85
218
-
3
2580
1,05
903
52
Propane G31
37
85
214
-
3
2580
1,05
903
52
Natural G20
20
131
-
334
3,5
3010
1,8
1548
65
Double Ring Butane G30
28-30
95
254
-
3,5
3010
1,8
1548
65
Propane G31
37
95
250
-
3,5
3010
1,8
1548
65
Oven
Natural G20
20
135
-
334
3,5
3010
1,05
903
48
Butane G30
28-30
90
254
-
3,5
3010
1,05
903
48
Propane G31
37
90
250
-
3,5
3010
1,05
903
48
Natural G20
20
125
-
286
3
2580
-
-
NO
Grill
Butane G30
28-30
85
218
-
3
2580
-
-
NO
Propane G31
37
85
214
-
3
2580
-
-
NO
BURNER ADJUSTMENT
Grill burner adjustment
: to adjust the grill burner loosen screw
P
and adjust the position
X
of the Venturi cone (Fig. 11-
12) according to the measurements indicated in table 4.
TABLE N°4: Burner primary air regulation (indicative)
Type of gas
BURNER GRILL (mm)
Natural
G20
13
Butane
G30
13
Propane G31
13
2) Burner "MINIMUM" adjustment:
Work surface burner adjustment
: follow the instructions below to adjust the work surface burner minimum:
1) Light the burner and set the knob to the MINIMUM position (small flame).
2) Remove the knob of the valve that is press fit on the rod of that valve.
3) If the cooker is not equipped with safety valves on the surface burners, insert a small slotted screwdriver into the hole
on the valve rod (Fig. 13) and turn the choke screw to the right or left until the burner flame is adjusted to minimum. If the
cooker is equipped with safety valves, the choke valve is not located in the rod hole, but on the valve body (see fig. 14).
4) Make sure that the flame does not go out when switching quickly from the MAXIMUM to the MINIMUM position.
Oven burner adjustment
: follow the instructions below to adjust the minimum:
1) Light the burner setting the knob to the MAXIMUM position.
2) Close the oven door and operate the oven for at least 10 minutes.
3) Set the knob to the MINIMUM position (corresponding to 120°) and then remove it.
4) With a slotted screwdriver turn the choking screw (see figure 15) and, while observing the flame at the same time
through the cooker porthole, evaluate the consistency of the flame so it remains on when switching quickly from the
MINIMUM to the MAXIMUM position.
WARNING: The above-mentioned adjustment should be made only with methane gas burners, while for those
operating with liquid gas the screw must be locked at the end in a clockwise direction. The grill
burner always operates at maximum and therefore no minimum adjustment is required.
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