Heatilator • CD4236IFTR, CD4236IFTLR, CD4842IFTR, CD4842IFTLR Installation Manual • 2511-980 Rev. M
• 8/21
30
Rear Vent - Vertical Termination - (continued)
Three Elbows
Figure 4.26
Three Elbows
Figure 4.27
INSTALLED
HORIZONTALLY
H
3
H
1
H
2
V
1
V
2
V
1
H
2
H
1
H
1
H
2
H
3
V
1
Minimum
H
1
+ H
2
+ H
3
Maximum
*
*
*
8 ft.
2.4 m
6 ft.
1.8 m
*
*
*
9 ft.
2.7 m
7 ft.
2.1 m
*
*
*
10 ft.
3.1 m
8 ft.
2.4 m
V
1
+ H
1
+ H
2
+ H
3
= 40 ft. (12.2 m) Maximum
*No specific restrictions on this value EXCEPT
V
1
+ H
1
+ H
2
+ H
3
cannot exceed 40 ft. (12.2 m) Maximum
H
1
+ H
2
+ H
3
= 8 ft. (2.4 m) Maximum
H
1
Maximum
V
1
Minimum
H
2
H
1
+ H
2
Maximum
2 ft.
610 mm
6 in.
152 mm
2 ft.
610
mm
4 ft.
1.2 m
3 ft.
914 mm
1 ft.
305 mm
4 ft.
1.2 m
7 ft.
2.1 m
5 ft.
1.5 m
2 ft.
610 mm
6 ft.
1.8 m
11 ft.
3.4 m
7 ft.
2.1 m
3 ft.
914 mm
8 ft.
2.4 m
15 ft.
4.6 m
8 ft
2.4 m
4 ft.
1.2 m
10 ft.
3.1 m
18 ft.
5.5 m
H
1
= 8 ft (2.4 m) Max. V
1
+ V
2
+ H
1
+ H
2
= 40 ft (12.2 m) Max.
H
1
+ H
2
= 20 ft (6.1 m) Max.
