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4.7
Overall dimensions
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burner to be opened and the rear part withdrawn on the slide
bars.
mm
A
RLS 68/M MX
691
RLS 120/M MX
733
Blast tube: short-long
(1)
4.8
Firing rates
During operation, burner output varies between:
–
a MAXIMUM OUTPUT
–
a MINIMUM OUTPUT which must not be lower than the min-
imum limit in the diagram.
Model
RLS 68/M MX
RLS 120/M MX
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
WARNING
above sea level), and with the combustion head
adjusted as shown on page 27.
4.8.1
Modulation ratio
The modulation ratio, determined using test boilers according to
standard (EN 676 for gas, EN 267 for gas oil), is:
–
3 : 1 (gas);
–
2 : 1 (gas oil).
In case of gas operation the burner can be used with a different
modulation ratio depending on the application - contact the man-
ufacturer for further information.
Technical description of the burner
B
C
D
E
296
395
555
840
338
395
555
840
kW
200
300
The maximum dimension of the burner when open, without cas-
ing, is give in measurement I.
D1176
F
G
H
(1)
260-395
189
430
260-395
189
430
RLS 68/M MX
Tab. H
RLS 120/M MX
11
GB
I
L
M
(1)
1161-1300
214
134
1161-1300
214
134
Fig. 2
N
O
221
2"
221
2"
Tab. G
D3129
Fig. 3
20034985
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