Riello RS 34/E MZ Installation, Use And Maintenance Instructions page 30

Example with natural gas G 20 for RS 44/E MZ:
Maximum output operation
Gas pressure at test point 1)(Fig. 27)
Pressure in combustion chamber
12.8 - 2.0
A maximum output of 400 kW shown in Tab. K corresponds to
10.8 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 for RS 44/E MZ:
Maximum output required: 400 kW
Gas pressure at output of 400 kW
Pressure in combustion chamber
10.8 + 2.0
gas pressure at test point 1)(Fig. 27).
20068131
Installation
= 12.8 mbar
= 2.0 mbar
= 10.8 mbar
= 10.8 mbar
= 2.0 mbar
= 12.8 mbar
28 GB
S8738
1
2
Fig. 27