Riello RS 1000/E BLU Installation, Use And Maintenance Instructions page 24

Example RS 1000/E BLU with G20 natural gas:
Maximum modulating output operation
Gas pressure at test point 1) (Fig. 22)
Pressure in combustion chamber
59.2 - 10
A pressure of 49.2 mbar, column 1, corresponds in Tab. K to an
output of 9000 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. 22),
set the maximum modulating output required from the burner op-
eration:
– find the nearest output value in Tab. K for the burner in ques-
tion.
– read, on the right (column 1), the pressure at the test point 1)
(Fig. 22).
– Add this value to the estimated pressure in the combustion
chamber.
Example RS 1000/E BLU with G20 natural gas:
Maximum modulating output operation
Gas pressure at an output of 9000 kW
Pressure in combustion chamber
49.2 + 10
Pressure required at test point 1) (Fig. 22).
20058360
Installation
= 59.2 mbar
= 10 mbar
= 49.2 mbar
= 49.2 mbar
= 10 mbar
= 59.2 mbar
22 GB
20061125
Fig. 22