ACV Prestige CPVC, User Manual

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Installation Requirements
Vent and Combustion Air Piping Installation Guidelines
PVC/CPVC Vent System
1. The installer should install the vent / combustion air
piping working from the boiler to the piping termination.
The piping should not exceed the lengths given in
Table 8 page 8 for either the vent or combustion air.
2. The installer should cut the pipe to the required
length and deburr the inside and outside of both
ends.
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 system
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 fittings and pipes carefully to prevent
contamination 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 hang-
ers or equivalent pipe hangers suitable for plastic pipe
to support the piping. The hangers must be spaced
at a maximum of every 5 feet [1.5 m] of horizontal
and vertical run of piping. A support must be placed
at the boiler and at every change in direction vertical
or horizontal (i.e elbow). Do not penetrate any part of
the piping or vent system with fastener.
Pipe hangers should not be tightly clamped to pipe
to allow for thermal expansion/contraction move-
ment. Pipe clamps or hangers should not contain
any sharp edges which can damage the pipe
8. The vent and combustion air piping should be sloped
continuously from the termination back to the boiler
with at least 1/4” drop per foot [6 mm/30 cm] of run.
Do not allow any sags in the run of piping.
Do not pitch the vent or combustion air piping down-
ward away from the boiler. Potential condensate
damage to the building exterior or to the surround-
ing landscape and/or potential risks of icing and
blockage of the vent piping could occur.
9. Maintain a minimum clearance of 1/4” [6 mm]
between the vent pipe and all materials, combustible
or non-combustible for 3” and 4” PVC/CPVC vents or
1” [2.5 cm] for 2” PVC/CPVC vents. The installer must
seal any wall, floor or ceiling penetrations as per local
code requirements.
It is recommended that the installer uses the same
number of elbows and length of piping on the vent-
ing and the combustion air inlet systems.
Covering PVC/CPVC or Polypropylene vent pipe and
fittings with thermal insulation is prohibited.
Polypropylene or Stainless Steel Vent Systems
When using Polypropylene or Stainless Steel Vent
refer to vent manufacture’s installation instructions,
supplied with the vent for proper installation.
Covering Polypropylene vent pipe and fittings with
thermal insulation is prohibited.
WARNING
NOTICE
NOTICE
NOTICE
BEST PRACTICE
NOTICE