Firing Rates; Test Boiler; Commercial Boilers - Riello RS5F Instrucciones De Instalación, Uso Y Mantenimiento

4.8

Firing rates

The firing rates have been defined in compliance with the
provisions of the EN 676 standard. The burner can be used for
operation with the combustion chamber featuring negative
pressure (up to - 2 mbar) according to the terms of approval
provided for in EN 746-2 for the whole unit complete with
equipment.
4.0
3.2
2.4
1.6
0.8
0
-0.4
-1.2
-2.0
150
D4458
130.000
4.9

Test boiler

The firing rate has been defined according to EN 676 standard.
4.9.1

Commercial boilers

The burner-boiler matching is assured if the boiler conforms to
EN 303 and the combustion chamber dimensions 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 consult the manufacturers.
20141167
Technical description of the burner
170 190 210
170.000
The firing rate value (Fig. 3) has been obtained
considering an ambient temperature of 20 °C, an
atmospheric pressure of 1013 mbar (approx. 0 m
a.s.l.), and with the combustion head adjusted as
ATTENTION
shown on page 17.
EN 676
EN 746-2
230 250 270
210.000 250.000
Thermal power
10 GB
290 310 330
290.000
350 kW
kcal/h
Fig. 3