5.11.6 Pilot - Gas Train Connection - Riello DB 12 SM C03 TC FS1 FB A0 Installation, Use And Maintenance Instructions

To calculate the required gas pressure at test point 1) (Fig. 20),
set the maximum modulating output required from the burner op-
eration:
– find the nearest output value in Tab. I for the burner in ques-
tion.
– read, on the right (column 1), the pressure at the test point 1)
(Fig. 20).
– Add this value to the estimated pressure in combustion
chamber.
Example with natural gas G20:
Operation at maximum modulating output
Gas pressure at an output of 10000 kW
Pressure in combustion chamber
85.6 + 10
pressure required at test point 1)(Fig. 20).

5.11.6 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
Installation
= 85.6 mbar
= 10 mbar
= 95.6 mbar
21 GB 20119882