Firing Rate; Test Boiler; Commercial Boilers; Correlation Between Gas Pressure And Burner Output - Roca CRONO 4-G COMPACT Instrucciones De Instalación, Montaje Y Funcionamiento Para El Instalador

2.3 FIRING RATE

D4617

TEST BOILER

The firing rate has been defined according to EN 676 standard.

COMMERCIAL BOILERS

The burner-boiler matching is assured if the boiler is according to EN 303 and the combustion chamber dimen-
sions are similar to those shown in the diagram EN 676.For applications where the boiler is not according to EN
303, or where the combustion chamber dimensions differ from those shown in EN 676, please consult the man-
ufacturers.

CORRELATION BETWEEN GAS PRESSURE AND BURNER OUTPUT

To obtain the maximum output, a gas head pressure of 5 mbar is measured (M3, see chapter 3.4, page 6) with
the combustion chamber at 0 mbar using gas G20 with a net heat value of 9.45 kWh/m
D4207
3217
(as EN 676)
Thermal power
Thermal power
3 GB
kW
kcal/h
3 3
(8,127 kcal/m ).
kW
kcal/h