11
20136130
GB
Technical description of the burner
4.8
Firing rates
The burner output is chosen from within the diagram area (Fig. 4)
and (Fig. 5).
WARNING
The firing rates (Fig. 4) and (Fig. 5) were obtained
at an ambient temperature of 20 °C, at a baromet-
ric pressure of 1013 mbar (about 0 m a.s.l.) and
with the combustion head regulated as indicated
on page 19.
WARNING
Only for BS4 model
To ensure operation with a burner output from 220
249 kW, remove the pre-cut soundproofing to
free the additional air input slots on the cover (see
A
Fig. 5).
S7025
Fig. 3
Thermal power
0
0,2
0,4
0,6
0,8
1,00
1,20
-0,2
1,40
1,60
1,80
15
20
25
30
35
40
45
50
55
-0,4
30
35
0,2
0,6
1,00
-0,4
1,40
40
45
50
55
60
65
70
75
80
85
90
95
1,80
2,20
-0,2
Fig. 4
kW
20141023
BS1
Thermal power
kW
20141031
BS2
Pre
ssure in th
e combustion
ch
amber –
mba
r
Pressure in the combustion
ch
amber –
mba
r
