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4.1.2
Two pipe system
This type of venting allows for exhaust flue and intake flue to be separated from each other. Fresh air may be drawn in at a different
site from where the flue terminal is located.
The splitting kit consists of a adaptor (100/80) and of an intake air vent adaptor.
For the air duct adaptor fit the screws and seals previously removed from the cap.
The 90° bend allows flue-air venting to connect to the boiler
regardless of direction as it can be rotated by 360°. It can
moreover be used as a supplementary bend to be coupled with
the duct or with a 45° bend.
0.82 ft / 0.25 m
45° bend
1.64 ft / 0.50 m
90° bend
Separated horizontal flue terminals installation options
The maximum length of the intake vent (L 1) cannot exceed 49.20 ft / 15.00 m.
(L1 + L2) max = 196.80 ft / 60.00 m
WARNING
Ensure a minimum downward slope of 0.79 in for every
3.28 ft of exhaust vent length (2.00 cm toward the boiler
per each meter for North America).
Separated flue terminals
Installation options
L max = 49.20 ft / 15.00 m
I
L max = 49.20 ft / 15.00 m
L
L max = 45.92 ft / 14.00 m
M
7703473 (02-12/19)
4.33 in
4.72 in
4.33 in
110.00 mm 120.00 mm
110.00 mm
9.37 in
238.00 mm
15.75 in
400.00 mm
L
L
20
4.88 in
124.00 mm
11.77 in
299.00 mm
L
I
L
M
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