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5608 741 - 04
Vitodens Rigid and Flex Venting Systems Installation
Direct Venting (Two-pipe System)
Component Parts of the PP(s) Venting System
(continued)
Always include vent termination length in calculations.
Legend
A
Air intake adaptor
B
Vent adaptor (if required) field supplied
C
Long vent length 3.3 ft. (1 m)
D
Short vent length 1.6 ft. (0.5 m)
E
2 pipe to coaxial adaptor (field supplied). Consult
Venting
Manual.
F
Vertical coaxial termination
G
Pipe support system
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).
IMPORTANT
WB1B 26, 35
WB2B 19, 26, 35
B2HA 19, 28, 35
B2HB 19, 26, 35
B2TA 19, 35
B2TB 19, 35