Combustion Chamber Pressure; Gas Train - Riello RS 250/M Installation, Use And Maintenance Instructions

GAS PRESSURE - OUTPUT
Pressure measured at the coupling (5)(fig.2) with combustion chamber at 0 mbar and burner in 2nd stage oper-
ation.
If the combustion chamber is pressurized, the required gas-pressure is that shown on the diagram plus the pres-
surization value.
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
1100
1200

COMBUSTION CHAMBER PRESSURE

The same as for natural gas.

GAS TRAIN

The same as for natural gas. The table below reports the minimum pressure required before the filter, pressure
loss at the combustion head included, to have the maximum output with combustion chamber pressure at 0
mbar.
For the max pressure allowed by the gas valve approval, see the burner instruction or the gas train instruction.
kW
1250
1500
1750
2000
2250
2500
2700
2916218
1300 1500
1600 1800
1400
Pressure loss
Pressure loss
at gas butterfly
at comb. head
valve
(mbar)
(mbar)
7.5 2.9
11.5 4.2
15.5 5.7
19.5 7.5
24.3 9.4
29.1 11.7
34.1 13.6
LPG Kit
1700 1900 2100
2200 2400
2000
Output
Pressure loss of gas train (mbar)
3970221 3970222
3970225 3970226
5.8
7.2
8.7
10.4
12.9
15.4
17.4
4
GB
D3850
2300 2500 Mcal/h
2600 2800 kW
3970223
3970227
4.7 3.7
5.4 4
6.3 4.4
7.3 4.8
8.6 5.3
10 5.9
11.1 6.3