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VENTING WITH THREE (3) 90° ELBOWS
V (FT.)
1' MIN. (305mm)
2' MIN. (610mm)
3' MIN. (914mm)
4' MIN. (1.22m)
NOTE: H + H
= 17' MAX. (5.1m)
1
V + V
+ H + H
1
V
1
H
1
VENTING WITH THREE (3) 90° ELBOWS
V (FT.)
1' MIN. (305mm)
2' MIN. (610mm)
3' MIN. (914mm)
4' MIN. (1.22m)
NOTE: V + V
+ H + H
= 37' MAX. (11.3m)
1
1
Figure 15. Venting with three 90° elbows
H (FT.)
3' MAX. (914mm)
6' MAX. (1.86m)
9' MAX. (2.7m)
12' MAX. (3.6m)
17' MAX. (5.1m)
= 37' MAX. (11.3m)
1
H
1
H + H
(FT.)
1
3' MAX. (914m)
6' MAX. (1.86m)
9' MAX. (2.7m)
12' MAX. (3.6m)
17' MAX. (5.1m)
H
21
H
V
1
V
V
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