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If using flexible metal tubes for connection to the gas supply, interpose an appropriate G 1/2" female nipple
(gas-tight thread) according to ISO 7-1 Standard and a G 1/2" male nipple (thread is not gas-tight) according
to ISO 228-1 Standard; interpose a suitable gas-tight gasket.
When the connection is completed, open the gas flow upstream of the appliance and, using a soapy solution
(never a free flame), check the perfect tightness of the connection.
7.2 Venting the combustion fumes
In relation to the venting of the combustion fumes, the appliance is of Type A1: i.e., it draws in the air required
for combustion from the room and discharges the fumes in the same environment.
Place particular attention to the volume of the room where the appliance is to be installed: this should be at
3
least 12 m
.
If the room has a smaller volume, it will be necessary to install the appliance directly under a suction hood,
and also to provide a combustion air intake with a free-flow cross section of al least 100 cm
7.3 Ignition
Press and turn the gas valve knob (51) counterclockwise to the position of the flame symbol, as shown in Fig.
B. While holding the knob pressed, push a few times the burner ignition button, marked with the star symbol
(53) to ignite the burner (piezoelectric ignition).
When the flame is lit, check through the relative hole (54), while keeping the gas knob pressed for 5-10 secon-
ds. After this period, if the flame does not remain lit, repeat the ignition operation again.
7.4 Changing the calibration
The appliance is prearranged to operate with the gas indicated in the relative settings tag attached to the
appliance. The information regarding the air setting, injector, rated and reduced heat flow are shown in Tables
1 and 2. The data that correspond with each model are indicated by the next-to-last character of the code for
the relative model. For example, the model code shown on the tag for the gas part characteristic 85-E-3-G
shows number 3 in the next-to-last digit.
In this case, refer to the data shown in Tables 1 and 2, respectively, in the column headed "3 Units".
If you wish to change the calibration of the appliance, proceed as follows:
Unscrew the primary air adjusting ring nut (55 - Fig. C) to expose the nozzle (56). Using the relative wrench,
unscrew the nozzle (56) and replace it with the proper one indicated in Table 2, checking that the diameter
marked on the same nozzle corresponds to the right diameter.
1° GRUPPO
0
2
1
1
53
51
Table 1 - Adjusting the primary air (Fig. C)
Gas
2 Units
GPL
L = 8 mm
(G30/G31)
Nat. gas
L = 4 mm
(G20)
Qn = Rated heat flow
Qnr = Reduced rated heat flow
2° GRUPPO
54
3 Units
4 Units
L = 10 mm L = 12 mm
L = 4 mm
L = 4 mm
Table 2 - Nozzle diameters in 100/mm
Gas
2 Units
GPL
40
(G30/G31)
Nat. gas
60X
(G20)
Qn (kW)
0,75
Qnr (kW)
N.A.
2
.
3 Units
4 Units
55
65
81X
90X
1,45
1,9
1,0
1,3
31
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