Component Parts Of The Pp(S) Venting System; Vertical Pipe System - Viessmann Vitodens 200-W WB2B Series Installation Instructions Manual

Direct Venting (Two-pipe System)

Component Parts of the PP(s) Venting System

Vertical pipe system

IMPORTANT
For PP(s) systems, all exhaust vent and air intake piping
and elbows exposed outside, must be UV resistant
polypropylene (supplied by the vent manufacturer).
Always include vent termination length in calculations.
50
Vitodens Rigid and Flex Venting Systems Installation
Legend
A Combustion air intake
B Flue gas outlet
1 Boiler vent pipe adaptor
2 Double pipe adaptor
3 Air intake adaptor (PVC, CPVC, ABS)
4 PP(s) adaptor (WB2B 80, 105 and
B2HA 80, 88, 100, 112, 150 only with
M&G system).
5 90º elbows
6 Combustion air intake straight pipe
7 Straight vent pipe
8 Pipe support system
9 Bird screen
qP Wall strap with locking band at each joint,
as supplied by manufacturer.