Heatilator • NDV30-IFT, NDV33-IFT, NDV36-IFT, NDV36-IFT-NVR, NDV42-IFT Installation Manual • 2620-980 Rev. C • 8/20
32
Rear Vent - Vertical Termination - (continued)
Three Elbows
Figure 4.28
V
Total
=
6 ft. (1.83 m) min.
V
Total
= 60 ft (18.29 m) max.
H
1 =
0 min.
H
1 =
6 ft (1.83 m) max.
H
Total =
Maximum horizontal run is 100% of
vertical, but cannot exceed 26 ft (7.92 m).
H
1
V
1
H
2
V
2