18
VENTING WITH TWO (2) 90° ELBOWS
V
H
H + H
1
1´ MIN. (305 mm)
2´ MAX. (610 mm) 4´ MAX. (1.22 m)
2´ MIN. (610 mm)
4´ MAX. (1.22 m)
8´ MAX. (2.4 m)
3´ MIN. (914 mm)
6´ MAX. (1.86 m)
12´ MAX. (3.6 m)
4´ MIN. (1.22 m)
8´ MAX. (2.48 m)
16´ MAX. (4.8 m)
H = 8´ MAX.(2.48 m) H + H
1
= 16´ MAX.(4.8m)
V + H + H
1
= 40 (12.2m) MAX.
VENTING WITH TW0 (2) 90
°
ELBOWS
V (FT)
H + H
1
(FT)
1´ MIN. (305 mm)
2´ MAX. (610 mm)
2´ MIN. (610 mm)
4´ MAX. (1.22 m)
3´ MIN. (914 mm)
6´ MAX. (1.86 m)
4´ MIN. (1.22 m)
8´ MAX. (2.48 m)
H + H
1
= 8´ MAX. (2.48 m)
V + H + H
1
= 40 (12.2m) MAX.
Use D-Series
components only.
Figure 14. Venting with Two 90° Elbows