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5608 741 - 04
Vitodens Rigid and Flex Venting Systems Installation
Vent Length Requirements
(continued)
Maximum vent length with increasers
Maximum vent length for vertical installations (Vitodens
100-W)
Model No.
WB1B 26, 35
System vent size
80/125*
1
100/150*
2
110/160
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 100/150,110/160
Maximum vent length for vertical installations (Vitodens 200-W)
Model No.
WB2B 19, 26
WB2B 35
WB2B 45
WB2B 60
System
vent size
80/125
100/150
or 110/160
80/125
100/150
100/150
100/150
Max. vent
length “a”
ft. (m)
40 (12)*
1
52 (16)*
2
34 (10.5)*
1
49 (15)*
2
43 (13)*
3
33 (10)*
3
Minimum vent length
The minimum equivalent vertical vent length for all models
is 4 ft. (1.2 m) (=length of vent termination).
Vent length “a”
Coaxial increaser for systems
60/100 to 100/150
60/100 to 80/125
80/125 to 100/150, 110/160
Vitodens 100-W WB1B, Vitodens 200-W WB2B,
Vitodens 200-W B2HA, Vitodens 222-F B2TA
Legend
A
87º elbow
B
Vent pipe 3.3 ft. (1 m)
C
Vent pipe 1.6 ft. (0.5 m)
D
Vent termination
*
1
If used with increasers 60/100 to 80/125.
*
2
If used with increasers 100/150 or 110/160
*
3
If used with increasers 80/125 to 100/150 or 110/160
Model No.
B2TA 19, 35
B2TB 19, 35
B2HA 19, 28, 35
B2HB 19, 26, 35
B2HA 45
B2HB 45
B2HA 60
B2HB 57
System
vent size
80/125
100/150
or 110/160
80/125
100/150
100/150
100/150
Max. vent
length “a”
ft. (m)
40 (12)*
1
49 (15)*
2
40 (12)*
1
49 (15)*
2
43 (13)*
3
30 (9)*
3
Vertical Vent Installation (Coaxial)