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Example RS 1300/EV with G20 natural gas:
Operation at maximum modulating output
Gas pressure at test point 1)(Fig. 23)
Pressure in combustion chamber
132 - 10
A pressure of 122 mbar, column 1, corresponds in Tab. J to an
output of 14300 kW.
This value serves as a rough guide; the effective output must be
measured at the gas meter.
To calculate the required gas pressure at test point 1)(Fig. 23),
set the maximum modulating output required from the burner op-
eration:
–
find the nearest output value in Tab. J for the burner in ques-
tion.
–
read, on the right (column 1), the pressure at the test point
1)(Fig. 23).
–
Add this value to the estimated pressure in combustion
chamber.
Example RS 1300/EV with natural gas G20:
Operation at maximum modulating output
Gas pressure at an output of 14300 kW
Pressure in combustion chamber
pressure required at test point 1)(Fig. 23).
5.11.5 Pilot - gas train connection
The burner is fitted with a dedicated gas train that is fixed to the
pipe coupling.
It should be connected to the main train downstream the fil-
ter or the pressure adjuster (depending on configuration).
Supply pressure 68 ÷ 500 mbar.
WARNING
5.11.6 Ignition pilot burner
For proper operation, adjust gas pressure (measured at pressure
test point 1)(Fig. 24) as follows:
Model
RS 1300/EV C01 FS1
RS 1600/EV C01 FS1
RS 2000/EV C01 FS1
Check pilot flame stability before starting up the
main burner.
WARNING
In the case of ignition problems check:
correct positioning of the ignition electrode;
the gas pressure, according to indications.
= 132 mbar
= 10 mbar
= 122 mbar
= 122 mbar
= 10 mbar
122 + 10
= 132 mbar
Gas
mbar
G20
26
G20
26
G20
26
Installation
3
Sm
/h
19
19
19
Tab. K
23
GB
2
1
20094557
20094558
Fig. 23
Fig. 24
20089633
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