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Heatilator • CD4236IFTR, CD4236IFTLR, CD4842IFTR, CD4842IFTLR Installation Manual • 2511-980 Rev. M
• 8/21
Figure 4.13
Top Vent - Horizontal Termination - (continued)
Three Elbows
H
2
H
1
V
2
V
1
V
1
Min.
H
1
Max.
V
2
Min.
H
2
Max.
Elbow only
2 ft.
610 mm
0 in.
0 mm
1 ft.
305 mm
6 in.
152 mm
3 ft
914 mm
6 in.
152 mm
2 ft.
610 mm
1 ft.
305 mm
6 ft.
1.8 m
1 ft.
305 mm
6 ft.
1.8 m
2 ft.
610 mm
11 ft.*
3.4 m*
2 ft.
610 mm
10 ft.*
3.1 m*
3 ft.
914 mm
16 ft *
4.9 m*
3 ft.
914 mm
14 ft.*
4.3 m*
*H
1
+ H
2
= 20 ft. (6.1 m) Maximum V
1
+ V
2
+ H
1
+ H
2
= 40 ft. (12.2 m) Maximum
