Viessmann Vitodens 200-W WB2B Series Installation Instructions Manual page 49

Vitodens Rigid and Flex Venting Systems Installation
Vent Length Requirements
Equivalent vent length calculation example - CPVC system
(continued)
Exhaust/
Air intake
pipe fittings
Field
supplied
Vitodens 100-W WB1B 26, 35,
Vitodens 222-F B2TA 19, 35
Vitodens 222-F B2TB 19, 35
Vitodens 200-W WB2B 19, 26, 35
Vitodens 200-W B2HA 19, 28, 35
Vitodens 200-W B2HB 19, 26, 35
Exhaust/Air intake
pipe and fittings
field supplied
Vitodens 200-W WB2B 45, 60, 80, 105,
Vitodens 200-W B2HA 45, 60, 88, 100, 112, 150
Vitodens 200-W B2HB 45, 57
(continued)
A
a
b
Flue starter adaptor
Air intake starter adaptor
Boiler adaptor
A
Starter adaptor
Parallel adaptor
Boiler adaptor
Direct Venting (Two-pipe System)
Legend
A Support system
B Exhaust pipe termination with screen
C Combustion air intake with screen
a Equivalent vent length (exhaust)
b Equivalent vent length (air intake)
a
b
Legend
A Support system
B Exhaust pipe termination with screen
C Combustion air intake with screen
a Equivalent vent length (exhaust)
b Equivalent vent length (air intake)
Side wall
Caulk here
(exterior caulking)
B
Flue
C
Air
Side wall
Caulk here
Exterior caulking
B
Flue
C
Air
49