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Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Installation Manual • 2628-980 Rev. C • 8/20
30
Rear Vent - Vertical Termination - (continued)
Three Elbows
Figure 4.29
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 can- not exceed 18 ft (5.49 m).
H
1
V
1
H
2
V
2