Additional Requirements For Cpvc Vent Pipe Material; Exhaust Vent Pipe Connection To Boiler - Viessmann Vitodens 200-W WB2B Series Installation Instructions Manual

Vitodens Rigid and Flex Venting Systems Installation
General Installation Information
Single Pipe Venting (Room Air Dependent)
(continued)

Additional requirements for CPVC vent pipe material

Use UL/ULC listed special plastic pipe (CPVC) for horizontal
(side wall) or vertical (roof) venting of the Vitodens boilers.
See table on page 62 and contact Viessmann to order.
Prior to installation, check that the correct single-pipe vent
parts have been ordered and supplied.
See table on page 62 for special starter adaptor and bird
screen models required for your installation.
Exhaust vent connection to boiler
The vent connection to the Vitodens boiler must be made
with CPVC starter adaptors (see table on page 62). The
starter adaptors are intended for a slip fit and slide into
the boiler adaptor with a gentle twisting motion.
For a vent pipe system, one wire mesh screen (bird screen)
must be ordered from Viessmann. These parts are
available in pre-cut diameters of 2 in., 3 in. and 4 in. (see
table on page 62).
WARNING
The use of vent material other than listed CPVC, positive
pressure vent pipe and fittings can cause property
damage, severe personal injury and/or loss of life.
Note: The Vitodens boiler has passed the zero inches
vent clearance to combustibles testing
requirements dictated by the Harmonized
Standard ANSI Z21.13. CSA 4.9. and therefore
is listed for zero clearance to combustibles when
vented with a single pipe special venting system.
The zero inches vent clearance to combustibles
for the Vitodens boiler supersedes the clearance
to combustibles listing that appears on the special
venting system label.
IMPORTANT
For exhaust vent pipe material:
Do not use any other vent material.
Do not use galvanized pipe, plastic pipe and/or chimney
liners of any kind.
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