Boiler Vent Connections - Viessmann Vitodens 100-W WB1B Series Installation Instructions Manual

Rigid Venting Systems Installation Instructions
General Installation Information

Boiler vent connections

Boiler models Vitodens 100-W WB1B 26, 35 and
Vitodens 200-W WB2B 19, 26, 35
For double-pipe installations the combustion
air inlet cover must be in place.
Fig. 1
Fig. 3 Boiler models Vitodens 200-W WB2B 45, 60 and
WB2B 80, 105
(continued)
Remove and discard combustion air inlet cover
when installing coaxial vent pipe system.
Fig. 2 Single or double-pipe installation (see Fig. 1)
Legend
A Combustion air (requires 2 in. CPVC adaptor)
B Flue gas (requires 2 in. CPVC adaptor)
Legend
A Combustion air
B Flue gas
Coaxial vent pipe system (see Fig. 2 and 3)
General Information
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