USSC
9
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE
VENTING TABLES
V
T
TABLE A
TABLE A
V = 40' Max.
T
H
V
T
TABLE B
H
V
H
V
1
V
T
1
TABLE C
TABLE C
V
H
H+H
V
Min.
Max.
Max.
Max.
1
2
2
39
2
4
4
38
3
6
6
37
4
8
8
36
5
8
10
35
6
8
12
34
7
8
14
33
8
8
16
32
9
8
16
31
V = V+V = 40' Max.
H = 8' Max.
1
1
1
T
TABLE E
H = 12" Min.
H = 24" Max.
TABLE F
V
H
H+H
Min.
Max.
Max.
1
2
2
2
4
4
3
6
6
4
8
8
5
8
10
6
8
12
7
8
14
8
8
16
9
8
16
V = 20' Max.
H = 8' Max.
H = H+H = 16' Max.
1
T
1
H
TABLE D
TABLE D
H = 12" Min.
H = 24" Max.
TABLE B
V
H
Min.
Max.
1
2
2
4
3
6
4
8
5
8
V = 40 Max.
H = 8' Max.
T
T
H
TABLE E
TOP VIEW
H
H
1
V
H
T
TABLE F-1
H
H
1
V
H
T
TABLE F-2
(variation with
3 elbows)