20017633
4
GB
2.3
FIRING RATES
In the HELIS 2 GI1810 2A model type 918T1, in order to guaran-
tee the working with an output of 220 - 250 kW, remove the blank
deadening to free the supplementary slits of the air inlet on the
cover.
TEST BOILER
The firing rate has been defined according to EN 676 standard.
COMMERCIAL BOILERS
The burner-boiler matching is assured if the boiler conforms to EN 303
and the combustion chamber dimensions are similar to those shown in
the diagram EN 676.
For applications where the boiler does not conform to EN 303, or
where the combustion chamber is much smaller than the dimensions
given in EN 676, please consult the manufacturers.
Thermal power
Pres
sure
in t
h
e comb
ust
io
n
c
hambe
r – mbar
Thermal power
Pr
ess
ure
in th
e combu
s
tion
ch
amber
–
mb
ar
80,000
kW
kcal/h
2.4
0.8
0.4
0
D8953
50
60
70
80
90
100
1.2
1.6
2.0
40,000
50,000
60,000
70,000
2.8
40
30
30,000
50
100
150
200
250
0
0.8
1.6
2.4
3.2
4.0
250.000
200.000
100.000
50.000
kW
kcal/h
D8832
917T1
918T1
A
916T1
S7025
A
