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Top Vent - Vertical Termination - (continued)
Three Elbows
H
2
Figure 4.20
28
V
1
Elbow only
6 in.
152 mm
1 ft.
305 mm
2 ft.
610 mm
3 ft.
914 mm
4 ft.
1.2 m
H
+ H
= 20 ft. (6.1 m) Maximum
1
2
V
2
INSTALLED
HORIZONTALLY
Heatilator • CNXT4236IFT, CNXT4842IFT Installation Manual • 2515-980 Rev. R • 1/23
H
+ H
V
V
1
2
2
1 ft.
305 mm
*
2 ft.
610 mm
*
2 ft.
610 mm
*
4 ft.
1.2 m
*
9 ft.
2.7 m
*
18 ft.
5.5 m
*
V
+ V
1
2
H
1
+ V
Minimum
H
+ H
1
2
1
2
*
*
1 ft.
*
*
2 ft.
*
*
2 ft.
*
*
4 ft.
*
*
9 ft.
*
*
18 ft.
+ H
+ H
= 60 ft. (18.3 m) Maximum
1
2
V
1
Maximum
305 mm
610 mm
610 mm
1.2 m
2.7 m
5.5 m
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