W415-2183 / B / 02.10.17
12
EN
Use the periscope kit to locate the air termination above grade. The periscope must be installed so that
when fi nal grading is completed, the bottom air slot is located a minimum 12” (30.5cm) above grade.
The maximum allowable vent length is 10’ (3.1m).
9.4B
3.3 SPECIAL VENT INSTALLATIONS
3.3.1 PERISCOPE TERMINATION
20" (50.8cm)
MAXIMUM
30”
MINIMUM
12”
MINIMUM
INSTALLATION D’UNE ÉVACUA-
TION SUR LE DESSUS
INSTALLATION D’UNE ÉVACUA-
TION À L’ARRIÈRE
30”
MINIMUM
12”
MINIMUM
COURSE MAXIMALE DE 10 PI
6" (152mm) MINIMUM
D’ÉLÉVATION
20” MAXIMUM
30”
MINIMUM
12”
MINIMUM
TOP EXIT INSTALLATION
REAR EXIT INSTALLATION
30”
MINIMUM
12”
MINIMUM
MAXIMUM 10FT VENT LENGTH
6” RISE
MINIMUM
20” MAXIMUM
3.3.2 CORNER TERMINATION
The maximum vent length for a corner installation is 20" (50.8cm) of horizontal run, in addition to the 45° off-
set. In this case zero rise is acceptable. See illustrations below. It is recommended to maintain a 6" (152mm)
rise (as illustrated).
12"
(30.5cm) MIN
TO GRADE
24"
(61cm)
MINIMUM
12"
(30.5cm)
MIN TO
GRADE
35 1/2"
(90.2cm)
24" (61cm)
MINIMUM
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