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Heatilator • NDV30-IFT, NDV33-IFT, NDV36-IFT, NDV36-IFT-NVR, NDV42-IFT Installation Manual • 2620-980 Rev. C • 8/20
Figure 4.13
One Elbow
Top Vent - Horizontal Termination
H
1
V
1
V
1
Minimum
H
Maximum
NDV30-IFT
NDV33-IFT
NDV36-IFT
NDV36-IFT-NVR
H
1
Maximum
NDV42-IFT
0*
0*
24 in.
610 mm
18 in.
457 mm
4 in.
102 mm
4 ft.
1.22 m
4 ft.
1.22 m
6 in.
152 mm
6 ft.
1.83 m
6 ft.
1.83 m
12 in.
305 mm
11 ft.
3.35 m
11 ft.
3.35 m
18 in.
457 mm
18 ft.
5.49 m
18 ft.
5.49 m
24 in.
610 mm
25 ft.
7.62 m
25 ft.
7.62 m
V
1
+ H
1
= 50 ft. (15.24 m) Maximum
* You may install the elbow directly on top of the appliance (DVP only).
NOTE:
A minimum venting scenario consists of a 90 degree elbow
off the top of the appliance with a DVP-TRAP2 horizontal termination
cap.