7
TYPICAL VENT INSTALLATIONS
FIGURE 2a
FIGURE 2b
REAR EXIT
16”
MINIMUM
35 FT MAXIMUM
3 FT MINIMUM
20" MAXIMUM
26 3/8" MINIMUM PLUS RISE*
TOP EXIT
FIGURE 3a
16”
MINIMUM
35 FT MAXIMUM
3 FT MINIMUM
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| 24" MAXIMUM | FIGURE 3b | |||||||
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10"
MINIMUM
43 1/8" MINIMUM PLUS RISE*
33 1/8"
* Refer to "Venting"
section.
SPECIAL VENT INSTALLATIONS
PERISCOPE TERMINATION
Use the GD201 periscope kit to locate the air termination above grade. The periscope must be installed so that when final grading is completed, the bottom air slot is located a minimum of 12" above grade. The maximum allowable vent length is 10 ft.
FIGURE 4a |
| FIGURE 4b |
| 12” | 12” |
| MINIMUM | |
| MINIMUM | |
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24” |
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MINIMUM | 24” |
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| MINIMUM |
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CORNER TERMINATION
The maximum vent length for a corner installation is 20" of horizontal run, in addition to the 45° offset. In this case zero rise is acceptable when using rigid. See FIGURE 5a. Flexible venting must maintain a 6" rise. See FIGURE 5b.
FIGURE 5a |
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| FIGURE 5b | |||
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| 20” MAXIMUM |
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| 6” RISE | |
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| MINIMUM | |
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MAXIMUM 10FT VENT LENGTH
TOP EXIT INSTALLATION | REAR EXIT INSTALLATION | |
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