Manual
13
2
. The installer should cut the pipe to the required
lengths and deburr the inside and outside of both
e
nds.
3. The installer should chamfer the outside of the pipe
ends to allow even distribution of cement when joining.
4. The installer should dry assemble the vent and com-
bustion air piping prior to assembling any joints to
ensure proper fit.
5. The pipe ends and fittings should be cleaned and
dried thoroughly prior to assembly of the joint.
6. When assembling a joint the installer should:
a. Handle fitting and pipes carefully to prevent con-
tamination of surfaces
b. Apply a liberal amount of primer to both surfaces
- the end of the pipe and the insert socket of the
fitting.
c. Apply a light uniform coating of approved
cement to both surfaces - the end of the pipe
and the insert socket of the fitting, while the
primer is still wet.
d. A second coat of approved cement should be
applied to the mating surfaces. The installer
should avoid, however, using too much cement
on the socket of the fitting to prevent a buildup
of cement on the inside.
e. With the cement still wet, the pipe end should be
inserted into the socket of the fitting and twisted
1/4 of a full turn. Ensure the pipe end is insert-
ed fully into the socket of the fitting.
f. Any excess cement should be wiped clean from
the joint. Inspect the joint to ensure a smooth
bead of cement is noticed around the entire joint
seam.
7. The installer should use perforated metal strap
hangers or equivalent pipe hangers to support the
piping. The hangers should be spaced at least
every 5 feet of horizontal or vertical run of piping. A
support should be placed near the boiler and where
the vent turns vertical.
8
. The vent and combustion air piping should be
sloped continuously from the termination back to the
b
oiler with at least 1/4 inch drop per foot of run. Do
not allow any sags in the run of piping.
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9. Maintain a minimum clearance of 1/4 inch between
the vent pipe and all materials, combustible or non-
combustible. The installer must seal any wall, floor or
ceiling penetrations as per local code requirements.
10. The vent piping does not require any insulation. The
installer may opt to insulate the vent piping in those
portions of the piping that pass through unheated
spaces such as crawl spaces or attics. In these
areas the installer may apply fiberglass insulation to
the outside of the vent pipe.
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NOTICE
WARNING
BEST PRACTICE
Installing Vent Termination Kit
"