Vent Length Requirements - Viessmann Vitodens 100-W WB1A-24 Installation Instructions Manual

Vent Length Requirements

Maximum vent length with increasers
a
Table 16. Maximum vent length for
vertical installations (Vitodens 100-W)
Model
WB1A 8-24, 8-30
No.
*1
System 80/125
vent size
Max. 39.4 ft.
vent 12 m
length
*1
If used with increasers 60/100 to
80/125.
*2
If used with increasers 60/100 to
100/150
Minimum vent length
The minimum equivalent vertical vent
length for all models is 4 ft./1.2 m
(=length of vent termination).
(continued)
Coaxial increaser
for system 60/100 to 100/150
Coaxial increaser
for system 60/100 to 80/125
Vitodens 100-W, WB1A
Models 8-24, 8-30
*2
100/150
46 ft.
14 m
Vertical Vent Installation (Coaxial)
a
Coaxial increaser
for system 80/125 to 100/150
Vitodens 200-W, WB2
Models 6-24C, 6-24, 8-32
Table 17. Maximum vent length for
vertical installations (Vitodens 200-W)
Model WB2
No. 6-24C,
6-24
System 100/150
vent size
Max. 39.4 ft.
vent 12 m
length (a)
*1
If used with increasers 80/125 to
100/150.
WB2 8-32
*1 *1
100/150
33 ft.
10 m
31