Table of Contents
Advertisement
Top Vent - Horizontal Termination - (continued)
Three Elbows
Figure 4.15
2. Top Vent - Vertical Termination
No Elbow
6 ft (1.8 m) min.
60 ft (18.29 m) max.
Figure 4.16
Heatilator • NNXT33-IFT, NNXT33L-IFT, NNXT36-IFT, NNXT36L-IFT Installation Manual • 2628-980 Rev. C • 8/20
Elbows Installed Vertically
H
V
2
2
V
min.
V
+V
1
1
25 ft.
12 in.
305 mm
(DVP)
V
+ V
+ H
+ H
= 44 ft. (13.41 m) Maximum
1
2
1
2
V
H
1
1
Install Top Vent Flue Visor - No Elbow Configura-
tions
•
Remove the refractory retainer from one of the side
refractories.
Figure 4.17 Remove Refractory Retainer
max.
H
+H
max.
2
1
2
7.62 m
19 ft.
(DVP)
Remove lower
refractory retainer
5.79 m
23
Advertisement
Table of Contents
