Riello RS 55/E BLU - Page 31

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20068446
GB
Installation
Example with natural gas G 20:
Maximum output operation
Gas pressure at test point 1)(Fig. 27) = 10.4 mbar
Pressure in combustion chamber = 2.0 mbar
10.4 - 2.0 = 8.4 mbar
A maximum output of 500 kW shown in Tab. K corresponds to 8.4
mbar pressure, column 1.
This value serves as a rough guide; the effective output must be
measured at the gas meter.
To know
the required gas pressure at test point 1)(Fig. 27), set
the maximum output required from the burner operation, then:
– find the nearest output value in the Tab. K for the burner in
question.
– Read, on the right (column 1) the socket pressure 1)(Fig. 27).
– Add this value to the estimated pressure in the combustion
chamber.
Example with natural gas G 20:
Maximum output required: 500 kW
Gas pressure at output of 500 kW = 8.4 mbar
Pressure in combustion chamber = 2.0 mbar
8.4 + 2.0 = 10.4 mbar
gas pressure at test point 1)(Fig. 27).
2
1
Fig. 27
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