3.3
SPECIAL VENT INSTALLATIONS
3.3.1 PERISCOPE TERMINATION
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" above grade. The maximum allowable
vent length is 10'.
24" MINIMUM
3.3.2 CORNER TERMINATION
The maximum vent length for a corner installation is 24".
12" MIN. TO
GRADE
2 4 "
CORNER INSTALLATION
29" MINIMUM
30 1/2"
M
I M U
M A X
I S E
0 " R
13
12" MIN.
TO GRADE
9.4
W415-0788 / B / 11.03.10