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6.4
Operating position
The burner is designed to work only in
positions 1 and 4 (Fig. 10).
Installation 1 is preferable, as it is the only
one that allows the maintenance operations
ATTENTION
as described in this manual.
The installation 4 permits the operation but
makes the maintenance and inspection
operations of the combustion head more
difficult.
Any other position could compromise the
correct operation of the appliance.
The installation 5 is prohibited for safety
reasons.
DANGER
6.5
Boiler plate
Pierce the closing plate of the combustion chamber, as in
(Fig. 11). The position of the threaded holes can be marked using
the thermal insulation screen supplied with the burner.
For the combustion head protrusion follow the indications
provided by the boiler manufacturer.
MODEL
PRESS 300 P/G
PRESS 450 P/G
NOTE:
For boilers with front smoke box provide a suitable
protection made of refractory material on the part of the
head protruding in the combustion chamber.
6.6
Blast tube length
The length of the blast tube must be selected according to the
indications 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.
MODEL
PRESS 300 P/G TC
PRESS 300 P/G TL
PRESS 450 P/G TC
PRESS 450 P/G TL
20170350
L
O
260
300
310
340
MIN
MAX
250
400
380
530
270
420
400
550
Installation
1
20172679
N
M18
M20
Tab. F
Tab. G
16
GB
2
3
4
L
N
5
Fig. 10
20172683
Fig. 11
20172681
MIN
MAX
Fig. 12
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