Top Vent Config. W Vertical Termination; Top Vent Configuration With Vertical Termination; Travis Industries - Travis Industries 21 TRV Installation Manual

2 8

Top Vent Configuration with Vertical Termination

•
The termination must fall within the shaded area shown in the chart. Use the indicated restrictor and
diffuser positions.
•
Up to four elbows (45° or 90°) may be used.
•
Only one horizontal elbow may be used (see illustration at the bottom of the page).
•
May use 8" or 6-5/8" diameter vent (see page for 24 details).
Restrictor Position # 3
Diffuser Position # 1 (stock)
This is considered a horizontal
elbow (it does not matter
whether it turns right or left).
It may be a 90° or 45° elbow.
© Travis Industries
Installation
40' (max)
35 feet
Restrictor Position # 2
30 feet
Diffuser Position # 1 (stock)
25 feet
NOTE:
Two 45° elbows
may be used.
20 feet
Restrictor Position # 1 (stock)
15 feet
Diffuser Position # 1 (stock)
10 feet
6' (min)
5 feet
0 feet
(for qualified installers only)
40' (max)
NOTE:
Restrictor positions are
based upon lab tests.
The ideal restrictor
position may vary
slightly, especially when
35 feet
the termination is near a
demarkation line.
30 feet
25 feet
20 feet
15 feet
10 feet
6' (min)
5 feet
0 feet
H2
Horizontal length is calculated by adding
both lengths of horizontal run
(Horizontal Length = H1 + H2).
H1
4080207
NOTE:
One 45° or 90° elbow may
be used between horizontal
sections. Horizontal length
is caculated by adding each
horizontal run together.
NOTE:
Horizontal sections require a
1/4" rise every 12" of travel.
This is considered a
vertical elbow
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