Overall Dimensions; Firing Rate - Riello RL 42 BLU Installation, Use And Maintenance Instructions

4.4

Overall dimensions

The maximum dimensions of the burner are given in Fig. 1.
Bear in mind that inspection of the combustion head requires the
burner to be opened and the rear part withdrawn on the slide
bars.
D7461
mm
RL 42 BLU
4.5

Firing rate

The burners can work in two ways: one-stage and two-stage.
st
1 stage DELIVERY must be selected within area A of the adja-
cent diagrams.
nd
2 stage DELIVERY must be selected within area B.
This area provides the maximum delivery of the burner in relation
to the pressure in the combustion chamber.
The work point may be found by plotting a vertical line from the
desired delivery and a horizontal line from the pressure in the
combustion chamber.
The intersection of these two lines is the work point which must
lie within area B.
The firing rate area values have been obtained
considering a surrounding temperature of 20
°C, and an atmospheric pressure of 1000 mbar
WARNING (approx. 100 m above sea level) and with the
combustion head adjusted as shown on pag. 18.
20023224
Technical description of the burner
I
E
L
A B C
533 300 238
The maximum dimension of the burner, without casing, when
open is give by measurement I.
F
D E F
490 477 291-316
8 GB
A
B C
G H I
163 335 680 - 815
A
B
Fig. 1
L
60
Tab. C
D10340
Fig. 2