Installation guide

Vertical Vent Installation (Coaxial)
28
Component Installation Guide (continued)
Coaxial vent termination installation
Fig. 21 Coaxial vent termination
Øb
Øa
A
A
B
B
d
c
e
f
g
Combust air intake
Flu gas outlet
Table 14. Ceiling opening information
Vent system Opening Ø
60/100 4¼”/108 mm
80/125 5¼“/133 mm
100/150 6
3
/
8
”/160 mm
Vertical vent termination installation
The vertical vent termination must not
be shortened outside the roof,
otherwise the overall length will be
shorter than required.
1. Install the vent termination for
sloped or flat roof collars in
accordance with the manufacturer’s
instructions.
2. The vent termination should be
placed from above on the sloped or
flat roof collar.
3. Connect vent pipe from below.
Dimensions vent system
Boiler model
a
(in / mm)
b
(in / mm)
c
(in / mm)
d
(in / mm)
e
(in / mm)
f
(in / mm)
g
(in / mm)
WB1B 26, 35
WB2B 9-19;
9-26, 9-35
2.4 / 60 4 / 100 0.4 / 10 1.6 / 40 23 / 585 18.1 / 460 50.4 / 1280
17-45, 17-60 3/80 5 / 125 0.4 / 10 2.2 / 57 18.7 / 476 22.8 / 580 53.3 / 1354
30-80, 30-105 4 / 100 6 / 150 0.4 / 10 2.6 / 67 31.3 / 795 22.8 / 580 68.3 / 1735
5368 815 v2.0 b
IMPORTANT