4.4
Firing rates (Fig. 3)
Technical description of the burner
D1218
Fig. 3
9
GB
During operation, burner output varies between:
MINIMUM OUTPUT: area A;
MAXIMUM OUTPUT: area B (and C for model RL 130/M).
Graphs (Fig. 3):
Horizontal axis
: Burner output
Vertical axis
: Combustion chamber pressure
The work point may be found by plotting a vertical line from the
desired delivery and a horizontal line from the pressure in the
combustion chamber. The intersection of these two lines is the
work point which must lie within area A, for MIN output, and within
area B, for MAX output.
In order to utilize also area C (RL 130/M) it is necessary to per-
form the calibration of the combustion head as explained on
page 11.
The FIRING RATE area values have been ob-
tained considering a surrounding temperature of
20 °C, and an atmospheric pressure of 1000 mbar
(approx. 100 m above sea level) and with the
WARNING
combustion head adjusted as shown on page 13.
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