Riello RS 70 - Gas Train and Pressure Specifications

20144609
20
GB
Installation
5.9.2 Gas train
Approved according to standard EN 676 and provided separately
from the burner.
To select the correct gas train model, refer to the supplied “Burn-
er-gas train combination” manual.
5.9.3 Gas train installation
The gas train must be connected to the gas connection 1)(Fig.
20), using the flange 2), the gasket 3) and the screws 4) supplied
with the burner.
The train can enter the burner from the right or left side, depend-
ing on which is the most convenient, see Fig. 20.
5.9.4 Gas pressure
Tab. G indicates the pressure drops of the combustion head and
gas butterfly valve, on the basis of the burner operating output.
Tab. G
The values shown in Tab. G refer to:
– Natural gas G 20 NCV 10 kWh/Sm
3
(8.6 Mcal/Sm
3
)
– Natural gas G 25 NCV 8.6 kWh/Sm
3
(7.4 Mcal/Sm
3
)
DANGER
Disconnect the electrical power using the main
switch.
Check that there are no gas leaks.
Pay attention when handling the train: danger of
crushing of limbs.
Make sure that the gas train is properly installed
by checking for any fuel leaks.
The operator must use the required equipment
during installation.
Fig. 20
D722
kW
1 p (mbar)
G 20 G 25
RS 70
465 4.4 6.9
515 5 7.9
565 5.9 9
615 6.7 10.3
665 7.6 11.7
715 8.7 13.2
765 9.7 14.9
814 10.7 16.7
RS 100
695 3.7 6.1
760 4.6 7.1
825 5.5 8.2
890 6.3 9.4
955 7.1 10.7
1020 8 12
1085 9.1 13.4
1163 10.1 15.2
RS 130
930 4.8 7.1
1010 5.6 8.4
1090 6.4 9.7
1170 7.3 10.9
1250 8.2 12.1
1330 9 13.3
1410 9.8 14.5
1512 10.6 15.9
WARNING
The heat output and gas pressure data in
the head refer to operation with gas but-
terfly valve fully open (90°).