
7
6074
GB
Technical description of the burner
3.2.2
Max. dimensions
-
approximate measurements
The maximum dimensions of the burner are given in (Fig. 2).
Bear in mind that inspection of the combustion head requires the
burner to be opened and the rear part drawn back on the guides.
The dimensions of the open burner are indicated by position
I
.
3.2.3
Standard equipment
2 -
Flexible hoses (L = 1350 mm)
2 -
Gaskets for flexible hoses
2 -
Nipples for flexible hoses
1 -
Thermal insulation screen
4 -
Extensions 13)(Fig. 1) for slide bars 12)(Fig. 1)
4 -
Screws to secure the burner flange to the boiler: M 16 x 40
1 -
Instruction booklet
1 -
Spare parts list
3.3
Firing rates
The RL 190 Model burners can work in two ways: one-stage and
two-stage.
1st stage DELIVERY
must be selected within area A of the ad-
jacent diagrams.
2nd 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.
3.3.1
Test boiler
The firing rates were set in relation to special test boilers in ac-
cordance with the methods defined in EN 267 standards.
Fig. 4 indicates the diameter and length of the test combustion
chamber.
Example:
delivery 65 kg/hour:
diameter = 60 cm; length = 2 m.
Whenever the burner is operated in a much smaller commercial-
ly-available combustion chamber, a preliminary test should be
performed.
Fig. 2
D1217
mm
A
B
C
D
E
F
G
H
I
RL 190
756
366
390
555
712
370
222
430
1166
combust
ion chamb
e
r pressure
Fig. 3
D1246
WARNING
The FIRING RATE area values have been ob-
tained considering a surrounding temperature of
20 °C, and an atmospheric pressure of 1000 mbar
(approx. 100 m above sea level) and with the
combustion head adjusted as shown on pag. 12.
D688
Fig. 4
comb
ustio
n
cha
m
ber
pre
s
sur
e
mba
r