Table of Contents
Advertisement
Available languages
Available languages
84
Example:
V
= 1.5 FT (0.5m)
1
V
= 5 FT (1.5m)
2
V
= V
+ V
= 1.5FT (0.5m) + 5FT (1.5m) = 6.5 FT (2m)
T
1
2
H
= 1 FT (0.3m)
1
H
= 1 FT (0.3m)
2
H
= 10.75 FT (3.3m)
3
H
= H
+ H
+ H
R
1
2
H
= .03 (four 90° elbows + one 45° elbow - 90°)
O
= .03 (360° + 45° - 90°) = 6.75 FT (2.1m)
FR
H
= H
+ H
= 12.75FT (3.9m) + 6.75 FT (2.1m) = 19.5 FT (5.9m)
T
R
O
H
+ V
= 19.5FT (5.9m) + 6.5FT (2m) = 26FT (7.6m)
T
T
Formula 1:
H
< 3 V
T
T
3 V
= 3FT (0.9m) x 6.5FT (2m) = 19.5FT (5.9m)
T
19.5FT (5.9m) = 19.5FT (5.9m)
Formula 2:
H
+ V
< 35 FT (10.7m)
T
T
26FT (7.9m) < 35FT (10.7m)
Since both formulas are met, this vent configuration is acceptable.
W415-1351 / 09.02.14
= 1FT (0.3m) + 1FT (0.3m) + 10.75FT (3.3m) = 12.75 FT (3.9m)
3
90°
H
2
45°
V
1
H
1
90°
18.4_3A
V
2
90°
H
3
Advertisement
Chapters
Table of Contents
