1. Top Vent - Horizontal Termination - (continued)
Two Elbows
WARNING**
Fire Risk.
•When using
installing first elbow.
•When using
•When using any other cap, a section of vertical pipe (12 inches minimum) MUST be installed prior to attaching a 90° elbow.
Note: There MUST be a 25% reduction in total H when using flex vent except when using the simple up and out installation (see Figure 7.3).
V1 Minimum** | H1 + H2 Maximum | ||
90 Elbow** | 1/2 ft. | 152 mm | |
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1/2 ft.** | 152 mm | 1 ft. | 305 mm |
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457 mm | 2 ft. | 610 mm | |
762 mm | 4 ft. | 1.2 m | |
1.1 m | 6 ft. | 1.8 m | |
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1.4 m | 14 ft. | 4.3 m | |
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H1 + H2 Max. =14 ft. (4.3 m)
V1 + H1 + H2 Max. = 40 ft. (12.2 m)
See Warning**
V1
H2 | H1 |
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INSTALLED
HORIZONTALLY
Figure 7.5
Heatilator • GDST3831I • | 27 |