15
Figure 11. Venting with Two 90° Elbows
VENTING WITH TWO (2)
90° ELBOWS
V
H
H + H
1
1´ MIN. (305 mm)
2´ MAX. (610 mm)
5´ MAX. (1.52m)
2´ MIN. (610 mm)
4´ MAX. (1.22 m)
10´ MAX. (3.1m)
3´ MIN. (914 mm)
6´ MAX. (1.86 m)
15´ MAX. (4.65m)
4´ MIN. (1.22 m)
8´ MAX. (2.48 m)
20´ MAX. (6.2m)
V+H+H
1
= 40´ MAX. (12.4 m) H = 8´ MAX. (2.48 m) H+H
1
= 20´ MAX. (6.2m)
Figure 12. Venting with Two 90° Elbows
VENTING WITH TWO (2) 90
o
ELBOWS
V FT.
H + H
1
(FT.)
1' MIN. (305mm)
5´ MAX. (1.52m)
2' MIN. (610mm)
10´ MAX. (3.1m)
3' MIN. (914mm)
15´ MAX. (4.65m)
4' MIN. (1.22m)
20´ MAX. (6.2m)
V+H+H
1
= 40' MAX.(12.4m) H+H
1
= 20´ MAX. (6.2m)
V+V
1
+H
= 40' MAX.(12.4m)