Riello RS 68/EV BLU Installation, Use And Maintenance Instructions page 31

To know the approximate output at which the burner is operating
at its maximum:
– Subtract the combustion chamber pressure from the gas
pressure measured at test point 1)(Fig. 27).
– Find, in the Tab. O relating to the burner concerned, column
1, the pressure value closest to the result you want.
– Read the corresponding output on the left.
Example with natural gas G 20 for RS 160/EV BLU:
Maximum output operation
Gas pressure at test point 1)(Fig. 27)
Pressure in combustion chamber
16.0 - 3.0
A maximum output of 1600 kW shown in Tab. O corresponds to
13.0 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. O 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 for RS 160/EV BLU:
Required burner maximum output operation: 1600 kW
Gas pressure at output of 1600 kW
Pressure in combustion chamber
13.0 + 3.0
pressure required at test point 1)(Fig. 27).
Installation
= 16.0 mbar
= 3.0 mbar
= 13.0 mbar
= 13.0 mbar
= 3.0 mbar
= 16.0 mbar
29 GB
S8716
Fig. 27
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