3.1
typical venting installation
30"
(76.2cm)
minimum
base of
air collar
SINGLE-SIDED
LV38-1
D
40"
special vent installation (periscope termination)
Use the 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 12" (30.5cm) above grade. The maximum
allowable vent length is 10' (3m).
30"
(76.2cm)
minimum
base of air collar
SINGLE-SIDED
LV38-1
D
40"
18"
(45.7cm)
maximum
LV38-1 & LV50-2: 30" (76.2cm) min
LV62 & LV74: 48" (121.9cm) min
62 3/4"
(159.4cm)
minimum plus rise
LV50-2
46 1/2"
12"
(30.5cm)
minimum
to grade
LV38-1 & LV50-2: 30" (76.2cm) min
LV62 & LV74: 48" (121.9cm) min
base of air collar
LV50-2
46 1/2"
venting requirements
base of
air collar
LV62
52 1/2"
SEE-THRU
LV62
N/A
D
LV38-1 & LV50-2: 62 3/4" (76.2cm)
min plus rise
LV62 & LV74: 80 3/4" (205.1cm)
min plus rise
SEE-THRU
LV74
58 1/2"
D
LV74
N/A
W415-1709 / A / 07.27.17
EN
12"
(30.5cm)
minimum
to grade
15