34
TRANSFORMERS
10) REPLACING NOZZLES
The burners can be adapted to suited different
types of gas by fitting the nozzles that correspond to
the gas used. To do this, it is necessary to remove
the burner heads and use a straight key “B”, to
unscrew the nozzle “A” (see fig. 15) and replace it
with a nozzle corresponding to the gas used.
We advise you to block the nozzle tightly.
After making these replacements, the technician
must regulate the burners as described in
paragraph 9, seal any regulation or pre-
regulation organs and apply the label
corresponding to the new gas regulation carried
out on the appliance in place of that previously
applied. This label is contained in the spare
nozzle bag.
For the ease of the fitter, we have prepared a table
indicating the flow capacities, the heat capacities of
the burners, the diameter of the nozzles and the
working pressure for the various types of gas.
ARRANGEMENT OF THE BURNERS
GB/IE/OTHER MARKETS
FIG. 15
BURNERS
TYPE
OF GAS
WORKING
PRESSURE
mbar
HEAT
CAPACITY
NOZZLE
DIAMETER
1/100 mm
HEAT
CAPACITY (W)
No. DENOMINATION
g/h
l/h
Min.
Max.
1
DUAL total
G 30 - BUTANE
G 31 - PROPANE
G 20 - NATURAL
28 - 30
37
20
305
300
400
46 H2 + 2 x 66
46 H2 + 2 x 66
66 F1 + 2 x 100 Z
2700
2700
2900
4200
4200
4200
DUAL central
G 30 - BUTANE
G 31 - PROPANE
G 20 - NATURAL
28 - 30
37
20
65
64
86
46 H2
46 H2
66 F1
300
300
300
900
900
900
2
FAST
G 30 - BUTANE
G 31 - PROPANE
G 20 - NATURAL
28 - 30
37
20
204
200
267
83
83
117 Y
800
800
800
2800
2800
2800
3
SEMI-FAST
FRONT
G 30 - BUTANE
G 31 - PROPANE
G 20 - NATURAL
28 - 30
37
20
102
100
133
60
60
85 Y
550
550
550
1400
1400
1400
4
SEMI-FAST
BACK
G 30 - BUTANE
G 31 - PROPANE
G 20 - NATURAL
28 - 30
37
20
127
125
167
68
68
98 Z
550
550
550
1750
1750
1750
5
AUXILIARY
G 30 - BUTANE
G 31 - PROPANE
G 20 - NATURAL
28 - 30
37
20
73
71
95
51
51
75 X
450
450
450
1000
1000
1000
