Viessmann Vitodens 200-W WB2B Series Installation Instructions Manual page 59

Vitodens Rigid and Flex Venting Systems Installation
General Installation Information
Additional requirements for stainless steel vent pipe material (continued)
Coaxial increaser [min. stainless steel pipe diameter is 3 in. (76 mm)]
The PP(s) increaser is required for the following boiler models.
Supplier Boiler Model
Viessmann WB1B 26, 35, WB2B 19, 26, 35
B2TA 19, 35, B2HA 19, 28, 35,
B2TB 19, 35, B2HB 19, 26, 35
Boiler models Vitodens 100 WB1B 26, 35, Vitodens 200
WB2B 19, 26, 35, B2HA 19, 28, 35, B2HB 19, 26, 35,
B2TA 19, 35, B2TB 19, 35,
Legend
A Stainless steel slip joint vent starter adaptor
Coaxial combustion air inlet cover shown removed.
Legend
A Combustion air (requires 2 in. CPVC adaptor)
B Flue gas (requires 2 inc. CPVC adaptor)
Single Pipe Venting (Room Air Dependent)
(continued)
PP(s) increaser
(60 to 80 mm)
When utilizing the combustion air inlet seal A for Vitodens
100 series and 200 WB2B boilers (older models), remove
the plastic center section and leave the rubber seal in place.
for Vitodens 100 series and 200 WB2B boilers
When utilizing the combustion air inlet seal A for Vitodens
100 WB1B, 200 B2HA/B and 222 B2TA/B series boilers,
remove the inlet seal A, tear out center section and install
the remaining rubber seal back into the air inlet opening.
for Vitodens 100 series, 200 B2HA/B and 222 B2TA/B boilers
Legend
A Combustion air
B Flue gas
If using annular air gap, remove and discard air inlet cover
or use optional opening to the left or right.
Quantity
1
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