Viessmann Vitodens 200-W WB2B Series Installation Instructions Manual page 35

Vitodens Rigid and Flex Venting Systems Installation
Vent Requirements - Stainless Steel
Additional requirements for stainless steel vent pipe
material (continued)
Parallel adaptor for two-pipe system
Supplier Boiler Model
Viessmann WB2B 45, 60
B2HA 45, 60
B2HB 45, 57
WB2B 80, 105
B2HA 80, 88, 100, 112, 150
Parallel vent pipe starter adaptors for:
WB2B 45, 60
B2HA 45, 60, B2HB 45, 57
C
B
Legend
A Air intake, max. insertion 2½ in. (64 mm) (use sheet
metal screws to hold in place)
B Viessmann parallel adaptor
C Stainless steel slip joint vent starter adaptor
3 in. (76 mm)
b 2¾ in. (70 mm)
c 7 in. (178 mm)
d approx. 10¾ in. (271 mm)
e 4¾ in. (120 mm)
A
Air
Flue
Direct Venting (Two-pipe System)
(continued)
Ø in. (mm)
3 (76)
(See 'a' in illustration below)
4 (102)
(See 'a' in illustration below)
Parallel vent pipe starter adaptors for:
WB2B 80, 105
B2HA 80, 88, 100, 112, 150
C
B
Legend
A Air intake, max. insertion 2½ in. (64 mm) (use sheet
metal screws to hold in place)
B Viessmann parallel adaptor
C Stainless steel slip joint vent starter adaptor
4 in. (100 mm)
b 5d in. (130 mm)
c 9e in. (237 mm)
d 12 7 / in. (327 mm)
16
e 5½ in. (140 mm)
Quantity
A
Flue Air
1
1
35