4
ADAPTATION TO DIFFERENT TYPES OF GAS FOR COOKER
Before performing any maintenance operation, disconnect the appliance from the gas supply and electricity
network.
REPLACING THE NOZZLES TO OPERATE WITH ANOTHER TYPE OF GAS FOR COOKER:
Follow the instructions below to change the burner nozzles on the work surface:
1) Pull out the plug from the electric outlet to avoid any type of electric contact.
2) Remove the grids from the work surface (Fig. 14).
3) Remove the burners (Fig. 14).
4) Unscrew the nozzles using a 7 mm spanner, and replace them (Fig.15) with those needed for the new type of gas
according to what is indicated in Table 1
Follow the instructions below to change the oven burner nozzle:
1) Loosen the screw G and remove the oven level (Fig. 16).
2) Loosen the screw Vand pull out the burner from the support being careful not to damage the ignition plug and the
thermocouple (Fig. 17).
3) Unscrew the nozzle R(Fig. 17) 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: II2H3+
Burner Types of Gas Pressare Nozzle
Diameter Rater Capacity Reduced
Capacity by-pass Diameter
Mbar 1/100 mm. g/h l/h kw kcal/h kw Kcal/h 1/100 mm.
Natural G20 20 77 - 95 1 860 0,48 413 34
Auxiliary Butane G30 30 50 73 - 1 860 0,48 413 34
Propane G31 37 50 71 - 1 860 0,48 413 34
Natural G20 20 101 - 167 1,75 1505 0,6 516 36
Semi-Rapid Butane G30 30 66 127 - 1,75 1505 0,6 516 36
Propane G31 37 66 125 - 1,75 1505 0,6 516 36
Natural G20 20 129 - 286 3 2580 1,05 903 52
Rapid Butane G30 30 87 218 - 3 2580 1,05 903 52
Propane G31 37 87 214 - 3 2580 1,05 903 52
Natural G20 20 In 70 - 476 5 4300 0,48 413 In 34 reg.
Out 110 out 65 reg.
Dual Butane G30 30 In 46 334 - 4,6 3956 0,48 413 In 34
Out 69 out 65
Propane G31 37 In 46 328 - 4,6 3956 0,48 413 In 34
Out 69 out 65
Natural G20 20 150 - 429 4,5 3870 2 1720 70
Oven Butane G30 28 95 327 - 4,5 3870 2 1720 70
Propane G31 37 95 321 - 4,5 3870 2 1720 70
BURNER ADJUSTMENT
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. 18) 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. 19).
4) For the gas valve of dual burner the choke valve is located on the valve body (fig. 20) , the A screw adjust the outer
ring, the B screw adjust the inner ring.
5) 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 21) 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.