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4.5
Preparing the boiler
4.5.1
Boring the boiler plate
Pierce the closing plate of the combustion chamber, as in Fig. 10.
The position of the threaded holes can be marked using the ther-
mal insulation screen supplied with the burner.
4.5.2
Head length
The length of the head must be selected according to the indica-
tions provided by the manufacturer of the boiler, and in any case it
must be greater than the thickness of the boiler door complete with
its fettling.
The burners cannot be used on flame inversion boil-
ers.
WARNING
It is possible to insert a protective device made of refractory mate-
rial between the combustion head and the boiler refractory.
This protective device must allow the blast tube to be taken out
(Fig. 11).
Installation
Do not insert the protection in line with the electrode
unit, as this would compromise its good operation.
WARNING
inch
RX 400 S/PV
RX 500 S/PV
19
GB
D3367
A
B
C
6
15
/
8
53
/
M8
16"
64"
15
53
6
/
8
/
M8
16"
64"
20056488
Fig. 10
D
E
3
15
/
2
11
/
16"
16"
15
11
3
/
2
/
16"
16"
Tab. L
Fig. 11
20051011
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