Filter
Top Products
12
W415-0153 / B / 06.10.10
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’.
9.7
3.3 SPECIAL VENT INSTALLATIONS
57" MINIMUM
12"
MIN. TO
GRADE
12"
MIN. TO
GRADE
29" MINIMUM
26 3/4"
3.3.1 PERISCOPE TERMINATION
20 FT
MAX
26 3/4"