NOTE: The vent must not exceed a total length of 68 feet.
Any combination of rise and run may be used but must be
constrained to the boundaries of this chart. A total of 3 90°
elbows or combination of other elbows equalling 90° can be
used without reducing horizontal run. For each additional 90°
elbow, or an equal combination of elbows, reduce horizontal
vent run by 2 feet. Ensure vent pipe is properly supported.
* 74 1/4”
Figure 34: TC42D Horizontal run - rise chart.
** All dimensions are approximate. Both rise and run may vary with different
combinations of pipe.
24" PIPE
LENGTH
MINIMUM
A
Minimum rise
B
Pipe length
C
Maximum run
D
Pipe length
Max.
74 1/4”
1-24”
18"
1-12"
78 1/2”
1-12” 1-18"
75 3/4"
1-48" 1-12"
84 1/2”
1-24" 1-12”
11' 2"
2-48" 1-24"
90 1/2”
1-24” 1-18"
15' 10 1/2"
3-48" 1-24"
1-12"
98 1/4”
1-48”
20’ 10 1/2”
5-48"
For other rise/run combinations see chart below
**
21
TC42D 301015-48
5056.426D
Wall Termination Venting Chart
Содержание TC42
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