61
10.1 - Coaxial
system
The boiler is not supplied with the
fi tting needed for connecting a coaxial
vent/combustion air system. A special
kit must be ordered to connect the
boiler with the Coaxial polypropylene
vent. Figure 51 shows how to install
the Coaxial fi tting above the boiler:
WARNING!!! Carefully follow
installation steps below, for the
coaxial pipe assembly (elbows and
extensions), as illustrated in fi gure
52. it is necessary to properly
insert the internal and external
pipe and mechanically secure
them by using a stainless steel self
tapping screw. Improper venting
can result in excessive levels of
carbon monoxide or a fi re, which
can result in severe personal injury
or death!
In particular:
1. slip-fi t the extension “1” and “2”
(see fi gure 52) together;
2. drill a suitable hole “3” with a drill
“4” (see fi gure 52) in a position
where the two pipes “1” and “2” are
overlapped;
3. insert a suitable stainless steel self
tapping screw “5” and tight it with a
screwdriver “6”
It is recommended that wall sleeve
be used when installing the coaxial
system through an exterior wall.
This will allow the system to be
easily slipped out for access during
routine maintenance.
Horizontal coaxial systems must
always be pitched by at least 1/4 in/
ft,
(21 mm/m)
towards the boiler.
The Coaxial system should extend
out of the wall to the dimensions
shown in fi gure 54.
Figure 51 - Installation of the coaxial fi tting
Figure 52 - Secure fi xing extensions and elbows together
10 - INSTALLATION - Coaxial venting system
B = Connection fl ange
C = Fixing feet
D = Fixing screw
F = Coaxial vertical adaptor
Содержание Peerless Combi 160
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