27
Heatilator • GDST3831I • 2127-900 Rev. N • 6/15
Figure 7.5
Two Elbows
V
1
Minimum**
H
1
+ H
2
Maximum
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. (4.3 m)
V
1
+ H
1
+ H
2
Max. = 40 ft. (12.2 m)
See Warning**
1. Top Vent - Horizontal Termination
- (continued)
INSTALLED
HORIZONTALLY
H
1
H
2
V
1
Note
: There MUST be a 25%
reduction in total H when using
fl
ex vent except when using the
simple up and out installation
(see Figure 7.3).
WARNING**
Fire Risk.
• When using SLP-HRC-SS and SLP-HRC-ZC-SS
termination caps on top vented
fi
replaces, a one
foot minimum vertical vent section is required before
installing
fi
rst elbow
.
• When using DVP-TB1 termination cap on top vented
fi
replaces, a three foot minimum vertical vent section
is required before installing
fi
rst elbow.
• When using any other cap, a section of vertical pipe (12 inches
minimum) MUST be installed prior to attaching a 90° elbow.
