90
2.6 INSTALLATION OF SEPARATE
DUCTS ø 80 - ø 60
(fig. 7 - fig. 8)
The kit with dedicated pipes enables to
separate the exhaust fumes pipes from the
air suction pipes (fig. 7):
- The kit with dedicated ø 80 pipes, code.
8089912, includes a SUCTION DIAPH-
RAGM THAT IS NOT used for these
models. To be able to use the air tap, cut
its base with a tool (A) and assemble it
(B).
- The kits with dedicated ø 60 pipes, code
8089913, include a suction collar that
replaces the boiler collar (C).
It is now possible to insert an expansion or
bend in polypropylene without gaskets or
sealant.
The maximum overall length, resulting
from the sum of all the suction and
discharge pipes, is determined by the
load losses of the single connected acces-
sories and should not exceed 15 mm H2O
(ATTENTION: the total length of each pipe
should not exceed 50 m, even if the total
loss is below the maximum applicable
loss.)
See Table 1-1/a for information on the
load losses of single accessories and the
example of fig. 8 for information on how to
calculate load losses.
ATTENTION: Only the “25-30” versions
are supplied with steel diaphragm code
6028605 to be positioned on the fumes
Fig. 6
LIST OF ø 60/100 ACCESSORIES
1
Coaxial duct kit code 8096250
2a Extension L. 1000 code 8096150
2b Extension L. 500 code 8096151
3 Vertical extension L. 140 with coupling code 8086950
4a Additional 90° curve code 8095850
4b Additional 45° curve code 8095950
5 Tile for joint code 8091300
6 Terminal for roof exit L. 1285 code 8091205
IMPORTANT:
- The insertion of each additional 90° bend
with a diameter of 60/100 reduces the
available section by 1.5 meters.
- The insertion of each additional 90° bend
with a diameter of 80/125 reduces the
available section by 2 meters.
- Each additional 45° curve installed redu-
ces the available length by 1.0 metres.
- During assembly it is important to make
sure that the kit with axial pipes. (1) is
positioned horizontally.
NOTE
Before connecting accessories, it is always
advisable to lubricate the internal part of
the gaskets with silicon products. Avoid
using oils and greases.
Model Length of pipe Length of pipe
ø 60/100 ø 80/125
LH LH
Min Max Min Max
25 6 m 1.3 m 8 m 12 m 1.2 m 15 m
25 T 6 m 1.3 m 8 m 12 m 1.2 m 15 m
30 5 m 1.3 m 7 m 10 m 1.2 m 13 m
35 4 m 1.3 m 6 m 8 m 1.2 m 11 m
35 T 4 m 1.3 m 6 m 8 m 1.2 m 11 m
LIST OF ø 80/125 ACCESSORIES
1 Coaxial duct kit code 8096253
2a Extension L. 1000 code 8096171
2b Extension L. 500 code 8096170
3 Adapter for ø 80/125 code 8093150
4a Additional 90° curve code 8095870
4b Additional 45° curve code 8095970
5 Tile for joint code 8091300
6 Terminal for roof exit L. 1285 code 8091205
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