Installation guide

Vertical Vent Installation (Coaxial)
32
Vent Length Requirements (continued)
Maximum vent length w ith increasers
Table 17. Maximum vent length for vertical installations
(Vitodens 100-W)
Model No.
WB1B 10-26, 10-35
System vent
size
80/125
*1
100/150
*2
Max. vent
length “a”
ft.
m
98
30
118
36
*1
If used with increasers 60/100 to 80/125.
*2
If used with increasers 60/100 to 100/150
Table 18. Maximum vent length for vertical installations
(Vitodens 200-W)
Model No.
WB2B
9-19, 9-26
WB2B
9-35
WB2B
17-45
WB2B
17-60
System
vent size
80/
125
*1
100/
150
*2
80/
125
*1
100/
150
*2
100/
150
*3
100/
150
*3
Max. vent
length “a”
ft.
m
39.4
12
52
16
34
10.5
49
15
43
13
33
10
*1
If used with increasers 60/100 to 80/125.
*2
If used with increasers 60/100 to 100/150
*3
If used with increasers 80/125 to 100/150
87º elbow
Vent pipe (3.3 ft./1 m)
Vent pipe (1.6 ft./0.5 m)
Vent termination
Minimum vent length
The minimum equivalent vertical vent
length for all models is 4 ft./1.2 m
(=length of vent termination).
5368 815 v2.0 b
a
Fig. 28
Vent length “a”
Coaxial increaser for systems
60/100 to 100/150,
60/100 to 80/125 and
80/125 to 100/150
Vitodens 100-W, WB1B and
Vitodens 200-W, WB2B