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One 90-Degree Elbow
B
A
TO BOTTOM
OF UNIT
EXAMPLE VENT RUNS
INITIAL PIPE
LENGTH
(Feet)
1
2
3
4
NOTICE: Pipe straps must be used every 2 feet to secure venting.
Two 45-Degree Elbows
Installation requirements to replace the first 90-degree elbow with
two 45-degree elbows:
A
EXAMPLE VENT RUNS
INITIAL PIPE
LENGTH
(Feet)
1
2
3
4
Page 34
HORIZONTAL TERMINATION
INSTALLED
VERTICALLY
1'
MINIMUM
A-Vertical
B-Horizontal
(Feet)
(Feet)
15
12
6
6
7
9
8
12
Figure 62
B
A-Vertical
B-Horizontal
(Feet)
(Feet)
6
6
7
9
8
12
9
15
Figure 63
Two 90-Degree Elbows
NOTICE: Subtract 3 feet from the total horizontal
measurement for each 90-degree elbow installed
horizontally. Subtract 1-1/2 feet from the total horizontal
measurement for each 45-degree elbow installed horizontally.
B
EXAMPLE VENT RUNS
INITIAL PIPE
LENGTH
(Feet)
1
2
3
4
Three 90-Degree Elbows
A
TO BOTTOM
OF UNIT
B
EXAMPLE VENT RUNS
INITIAL PIPE
LENGTH
(Feet)
1
2
3
4
INSTALLED
HORIZONTALLY
MININUM
A
A-Vertical
B-Horizontal
(Feet)
(Feet)
5
Not Allowed
6
3
7
6
8
9
Figure 64
INSTALLED
VERTICALLY
INSTALLED
VERTICALLY
A-Vertical
B-Horizontal
(Feet)
(Feet)
5
Not Allowed
6
6
7
9
8
12
Figure 65
37606-4-0718
1'
1'
MININUM
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Troubleshooting
