Viessmann Vitodens 100-W WB1B Series Installation Instructions Manual page 47

Rigid Venting Systems Installation Instructions
Vent and Air Intake Pipe Starter Adaptors - CPVC
Parallel vent pipe starter adaptors for WB2B 45, 60
Legend
A Air intake, max. insertion 2½ in. (64 mm)
B Viessmann parallel adaptor
C CPVC slip joint starter adaptor 80 mm to 3 in.
(Viessmann)
Fig. 42
Legend
a 3 in. (76 mm)
b 2¾ in. (70 mm)
c 7 in. (178 mm)
d approx. 9e in. (237 mm)
e 4¾ in. (120 mm)
Flue
Air
Direct Venting (Two-pipe System)
(continued)
Parallel vent pipe starter adaptors for WB2B 80, 105
Legend
A Air intake, max. insertion 2½ in. (64 mm)
B Viessmann parallel adaptor
C CPVC slip joint starter adaptor 110 mm to 4 in.
(Viessmann)
Fig. 43
Legend
a 4 in. (100 mm)
b 5d in. (130 mm)
c 9e in. (237 mm)
d approx.12 in. (305 mm)
e 5½ in. (140 mm)
Flue Air
47