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3.7
Firing rates
NOX < 30 ppm
NOX < 20 ppm
NOX < 9 ppm
Ignition
During operation, burner output varies between:
•
a MAXIMUM OUTPUT, which must not be greater than the
maximum limit given on the diagram,
•
and a MINIMUM OUTPUT, which must not be lower than the
minimum limit in the diagram.
Riello Burners
Model
CO
RX 180 S/PV
8.5~8.75
20062175
Technical description of the burner
NOx expected emissions on Natural Gas
(expressed in ppm@3% O
Sub 30
(%)
O
(%)
2
2
5.8~5.4
RX 180 S/PV
Input (MBtu/h)
NOTE:
The FIRING RATE value range has been obtained considering an
ambient temperature of 68 °F (20 °C), and an atmospheric pres-
sure of 394" WC.
The FIRING RATE areas given in Fig. 6 have been reduced by
10% with respect to the maximum range that can be reached.
)
2
Sub 20
CO
(%)
O
(%)
2
2
8.0~8.5
6.7~5.8
10
GB
20064447
Sub 9
CO
(%)
O
(%)
2
2
7.25~7.75
8.0~7.1
Fig. 4
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