16
Installation info
fig.6
fig. 7
Diaphragm
Ø 42 mm
Fitting of the diaphragm Ø 42
2.2.7 - SMOKE EVACUATION Ø 80
WITH AIR SUCTION
FLANGE - Type B22
(see par. 2.2.6)
Note: For evacuation system with 80 mm dia.
and a lenght between
0.5 m
and
4 m
, it
is necessary to introduce a diaphragm
of 42 mm dia. supplied with the boiler in
the plastic bag, into the fan outlet adap-
tor (see fig. 6).
The maximum allowed length for a smo-
ke pipe of 80 mm dia. i
s 20 m
, included
a wide radium curve and one smoke ter-
minal.
For this type of installation the chim-
ney has to serve just one boiler, i.e. the
boiler must have its indipendent smo-
ke duct.
WARNING:
For the installation where there
is a freezing risk it is suggested
to insulate the smoke duct 80
mm dia. on all its length, both in
case it discharges from a verti-
cal wall or in a chimney.
WARNING: For the smoke ou-
tlet configuration (see fig.
6-7) it is necessary to clo-
se the holes of air entry ''1-
2'' with the provided for
closing covers and the
gaskets delivered with the
boiler.
Closing cover with
gasket in
neoprene
Closing cover with
gasket in
neoprene
Closing cover with
gasket in
neoprene
Closing cover with
gasket in
neoprene
