12
NOTE:
The performance curve is a diagram that represents the burner performance in the type approval phase or in the laboratory
tests, but does not represent the regulation range of the machine. On this diagram the maximum output point is usually reached by adj-
suting the combustion head to its “MAX” position (see paragraph “Adjusting the combustion head”); the minimum output point is rea-
ched setting the combustion head to its “MIN” position. During the first ignition, the combustion head is set in order to find a
compromise between the burner output and the generator specifications, that is why the minimum output may be different from the Per-
formance curve minimum.
Low NOx burners
BACK PRESSURE
IN
CCOMBUSTION CHAM
BER
mbar
NGX280
kW
BACK PRESSURE IN
CCOMBUSTION CHAM
BER
mbar
NGX350
kW
NGX400
kW
0
1
2
3
4
5
6
40
80
120
160
200
0
1
2
3
4
5
6
7
50
100
150
200
250
300
0
1
2
3
4
5
6
7
8
9
50
100
150
200
250
300
350
400