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4.10.4 New Installation of Duravent PPS
Concentric System
The FT boiler has separate Combustion Air and Vent
connections. Using the Parts Kits indicated in Table 7,
the FT boiler can be connected with a Polypropylene
Concentric Vent System for horizontal and vertical
venting applications. Note that the entire venting
system must slope back to the boiler 3/8" per foot for
proper drainage of condensate. Do NOT allow any
sags in the venting system.
For a vertical venting system, locate the FT Boiler as
close as possible to the chosen vent location
overhead, on the roof. The selection of the location for
the roof termination must follow the guidelines of
Section 4.9 Vent / Air Termination, Page 22.
For a horizontal venting system, locate the FT Boiler
as close as possible to the chosen vent site near the
outside wall of the building. This location must
consider the 12” height above grade and/or maximum
anticipated snow line and its proximity to windows,
doors and sources of incoming air, etc. Reference
Section 4.6 Locations for Vent Pipe Terminator,
Page 18.
Venting Assembly Process:
Determine the routing of the venting system and
measure the required horizontal and vertical runs.
Keep in mind that telescoping pieces may be required
as most piping sections can not be trimmed to length.
Hangers and supports must be used every 4 ft so that
the venting system slopes down back to the FT boiler
by 3/8" per ft and no sags can be present in the
venting system.Start the installation by installing the
FT3002 Stub Out Kit directly in the FT Boiler
Combustion Air and Vent connectors..
The 2 PP pieces of the FT3002 kit can be reduced in
length, make sure to cut the exact same length from
each piece, not to exceed 6-1/2". Assemble the parts
in the following order:
1)
Insert a stainless steel to PP adaptor, (#4), into
each of the FT boiler sockets and ensure that they
bottom out in the sockets. Moisten the seals on the
sockets to make the
insertion easier and to
avoid damaging the seals.
Tighten the clamps on
boiler vent connectors.
2)
Insert item 820019072,
(#3), 17.75” Straight
Length, plain end through
the top of the, (#1),
Concentric Adapter. Do not
connect it to the FT
Boiler at this point.
3)
Insert item 820001613,
(#2), 12” Straight Length,
into the stainless steel to
PP adapter on the
Combustion Air socket and
tighten the clamp.
4)
Place the Concentric
Adaptor, (#1), on top of the
12” pipe and align it so that
the 17.75” PP pipe is
aligned with the Vent
socket on the FT Boiler.
ITEM
NUMBER
QUANTITY PART
NUMBER
Description
1 1 820014497 Concentric Adaptor 80/80 - 80/125
2 1 820001613 3˝ Diameter PP 12˝ Pipe Length
3 1 820019072 3˝ Diameter PP 17.750˝ Pipe Length
4 2 810004167 3˝ Diameter 3˝ PVC Male to 3˝ PP
5 1 810004128 3˝ Diameter PVC Adaptor Clamp
Stub-out Kit FT3002
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