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Heat & Glo • ST-550TM-IPI • 2142-900 Rev. B • 11/0828
Figure 7.6
1. Top Vent - Horizontal Termination - (continued)
Three Elbows
V
1
Minimum H
1
+ H
2
Maximum V
2
V
1
+ V
2
Min.
1 ft.** 305 mm 1 ft. 305 mm * *
2 ft.** 610 mm 2 ft. 610 mm * *
3 ft.** 915 mm 4 ft. 1.2 m * *
4 ft. 1.2 m 6 ft. 1.8 m * *
5 ft. 1.5 m 14 ft. 4.3 m * *
H
1
+ H
2
Max. =14 ft. (4.3 m)
V
1
+ V
2
+ H
1
+ H
2
Max. = 40 ft. (12.2 m)
*No specifi c restrictions on this value
EXCEPT V
1
+ V
2
+ H cannot exceed 40 ft. (12.2 m)
See Warning Below**
H
2
H
1
V
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).
Note: A section of vertical pipe (12 inches minimum)
MUST be installed prior to attaching a 90° elbow.
WARNING**
Fire Risk.
• When using SLP-HRC-SS and SLP-HRC-ZC-SS
termination caps on top vented fi replaces, a two
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.