Riello GS20/M - HEATER Instrucciones Para La Instalación, Uso Y Mantenimiento página 6

TEST BOILER
The working field has been defined according to EN 676 standard.
COMMERCIAL BOILERS
The burner-boiler matching is assured if the boiler conforms to EN 303 and the combustion chamber dimen-
sions are similar to those shown in the diagram EN 676. For applications where the boiler does not conform to
EN 303, or where the combustion chamber is much smaller than the dimensions given in EN 676, please con-
sult the manufacturers.
CORRELATION BETWEEN GAS PRESSURE AND BURNER OUTPUT
To obtain the maximum output, a gas head pressure of 4.6 mbar, relatively to type 729T50, is measured with
the combustion chamber at 0 mbar using gas G20 with a net heat value of 10 kWh/Nm
729 T50
5
4
3
2
1
0
10 20
16.300
1960 D
7
6
5
4
3
2
1
0
40
30.000 50.000
2546001
30 40 50
34.400
60 80 100
70.000 90.000
60 70 80
51.600 68.800
120 140
110.000 130.000
4
GB
3
.
D6221
90 100 110
86.000
Thermal power
D6226
160 180 200
150.000 170.000
Thermal power
kW
kcal/h
kW
kcal/h