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20 Installation (for qualified installers only)
Travis Industries 4050114 100-01149
Vertical T erminations with Two Vertical 90° Elbows
The termination must fall within the shaded area shown in the chart. Use the indicated restrictor position.
5 feet
10 feet
(min.)
15 feet
20 feet
25 feet
30 feet
0 feet
40' (max)
5 feet
10 feet
15 feet
0 feet
5 feet
10 feet
15 feet
20'(max)
15 feet
20 feet
25 feet
30 feet
0 feet
0 feet
NOTE:
Horizontal sections require a
1/4" rise every 12" of travel.
10 feet
(min.)
40' (max)
20'(max)
Restrictor
Position # 6
NOTE:
Restrictor positions
are based upon
lab tests. The
ideal restrictor
position may vary
slightly, especially
when the
termination is near
a demarkation line.
5 feet
Restrictor
Position # 5
35 feet 35 feet
NOTE:
• One horizontal elbow is allowed.
It may be a 45° or 90° elbow.
H1
This is considered a
vertical elbow
Horizontal length is calculated by
adding both lengths of horizontal run
(Horizontal Length = H1 + H2).
H1
H2
This is considered a
vertical elbow
This is considered a horizontal elbow because it
is between two horizontal sections.