38745-4-0319
Page 28
HORIZONTAL TERMINATION
One 90° Elbow
A
TO BOTTOM
OF UNIT
B
INSTALLED
VERTICALLY
1’
MINIMUM
EXAMPLE vENT RUNS
INITIAL PIPE
LENGTH
(In Inches)
A-vertical
(In Feet)
b-Horizontal
(In Feet)
12
5
2
24
6
6
36
7
9
48
8
12
Figure 56
NOTE
: Pipe straps must be used every 2 feet to secure venting.
Two 45° Elbows
Installation requirements to replace the first 90° elbow with two
45° elbows:
B
A
EXAMPLE vENT RUNS
INITIAL PIPE
LENGTH
(In Inches)
A-vertical
(In Feet)
b-Horizontal
(In Feet)
12
6
6
24
7
9
36
8
12
48
9
15
Figure 57
GeNeRIC moDeL SHoWN
Two 90° Elbows
NOTE
: Subtract 3 feet from the total horizontal measurement for
each 90° elbow installed horizontally. Subtract 1-1/2 feet from the
total horizontal measurement for each 45° elbow installed hori
-
zontally.
1’
MININUM
INSTALLED
HORIZONTALLY
B
A
EXAMPLE vENT RUNS
INITIAL PIPE
LENGTH
(In Inches)
A-vertical
(In Feet)
b-Horizontal
(In Feet)
12
5
Not Allowed
24
6
3
36
7
6
48
8
9
Figure 58
Three 90° Elbows
1’
MININUM
B
INSTALLED
VERTICALLY
INSTALLED
VERTICALLY
A
TO BOTTOM
OF UNIT
EXAMPLE vENT RUNS
INITIAL PIPE
LENGTH
(In Inches)
A-vertical
(In Feet)
b-Horizontal
(In Feet)
12
5
Not Allowed
24
6
6
36
7
9
48
8
12
Figure 59
GeNeRIC moDeL SHoWN
