Riello RS 1300/EV BLU, Installation, Use And Maintenance Instructions

Page: 25 / 56

23 20089637 GB
Installation
Example RS 1300/EV BLU FS1 with natural gas G20:
Operation at maximum modulating output
Gas pressure at test point 1)(Fig. 23)
= 102 mbar
Pressure in combustion chamber = 10 mbar
102 - 10 = 92 mbar
A pressure of 92 mbar, column 1, corresponds in Tab. J to an out-
put of 12200 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. 23),
set the maximum modulating output required from the burner op-
eration:
–
find the nearest output value in Tab. J for the burner in ques-
tion.
– Read, on the right (column 1), the pressure at the test point
1) (Fig. 23).
– Add this value to the estimated pressure in combustion
chamber.
Example RS 1300/EV BLU FS1 with natural gas G20:
Operation at maximum modulating output
Gas pressure at an output of 12200 kW
= 92 mbar
Pressure in combustion chamber = 10 mbar
92 + 10 = 102 mbar
pressure required at test point 1)(Fig. 23).
5.11.5 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).
5.11.6 Ignition pilot burner
For proper operation, adjust gas pressure (measured at pressure
test point 1)(Fig. 24) as follows:
Tab. K
In the case of ignition problems check:

correct positioning of the ignition electrode;

the gas pressure, according to indications.
WARNING
Supply pressure 68 ÷ 500 mbar.
Model Gas mbar Sm 3 /h
RS 1300/EV BLU FS1 G20 26 19
RS 1600/EV BLU FS1 G20 26 19
RS 2000/EV BLU FS1 G20 26 19
WARNING
Check pilot flame stability before starting up the
main burner.
WARNING
The data of thermal output and combustion
head gas pressure are related to full open (90°)
gas butterfly valve.
Fig. 23
1
2
20128346
Fig. 24
20128347