Heatilator • GDST3831I • 2127-900 Rev. N • 6/15
30
Figure 7.9
Two Elbows
Three Elbows
Figure 7.10
V
1
Minimum
H Maximum
V
2
V
1
+ V
2
Min.
90 Elbow
1-1/2 ft.
457 mm
*
*
1/2 ft.
152 mm
2 ft.
610 mm
*
*
1-1/2 ft.
457 mm
3 ft.
914 mm
*
*
2-1/2 ft.
762 mm
5 ft.
1.5 m
*
*
3-1/2 ft.
1.1 m
7 ft.
2.1 m
*
*
4-1/2 ft.
1.4 m
15 ft.
4.6 m
*
*
H Max. =15 ft. (4.6 m)
* No speci
fi
c restrictions on this value EXCEPT V
1
+ V
2
+ H
1
cannot exceed 40 ft. (12.2 m)
V
1
Minimum
H
1
+ H
2
Maximum
V
2
V
1
+ V
2
Min.
90 Elbow
1/2 ft.
152 mm
*
*
1/2 ft.
152 mm
1 ft.
305 mm
*
*
1-1/2 ft.
457 mm
2 ft.
610 mm
*
*
2-1/2 ft.
762 mm
4 ft.
1.2 m
*
*
3-1/2 ft.
1.1 m
6 ft.
1.8 m
*
*
4-1/2 ft.
1.4 m
14 ft.
4.3 m
*
*
H
1
+ H
2
MAX. =14 ft. (4.6 m)
* No speci
fi
c restrictions on this value EXCEPT V
1
+ V
2
+ H
1
+ H
2
cannot exceed 40 ft. (12.2 m)
H
1
V
2
V
1
INSTALLED
HORIZONTALLY
H
1
H
2
V
2
V
1