Lennox ELDV-45NE Installation Instructions Manual page 19
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HORIZONTAL VENT FIGURES/TABLES
(continued)
H 1
Square termination (SV4.5HT-2) shown.
See Table 3 on page 18 as an aid in venting component
selection for a particular range of exterior wall thicknesses.
Figure 30
- Top Vent - TWO 90 DEGREE ELBOWS
H 1
**Wall Firestop/Spacer
(SV4.5HF)
Square termination (SV4.5HT-2) shown.
See Table 3 on page 18 as an aid in venting component selection for a particular range of exterior wall thicknesses.
Figure 31
- Top Vent - THREE 90 DEGREE ELBOWS
*Wall Firestop/Spacer
(SV4.5HF)
H
*Wall Firestop/Spacer
(SV4.5HF)
Min. One Foot Vent
Section Required
**Ceiling
Firestop/Spacer
(SV4.5VF)
Firestop/Spacer
(SV4.5VF)
H
V 1
**Wall Firestop/Spacer
(SV4.5HF)
Min. One Foot Vent
Section Required
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
*Ceiling
V
T
A
B
V
M
i
i n
m
u
m
e f
t e
(
m
)
2
(
. 0
0 6
) 1
3
(
. 0
1 9
) 4
V
4
1 (
2 .
) 2
5
(
. 1
2 5
) 4
6
(
. 1
2 7
) 9
7
(
. 2
3 1
) 4
V
+
H
=
0 4
f
e e
H
=
0 2
e f
t e
Note: Install second restrictor in
any run having more than 8 ft. of
vertical rise.
T
A
B
V
M
i
i n
m
u
m
e f
t e
(
m
)
2
(
. 0
0 6
) 1
3
(
. 0
1 9
) 4
4
1 (
2 .
) 2
5
(
. 1
2 5
) 4
6
(
. 1
2 7
) 9
7
(
. 2
3 1
) 4
V
+
H
=
0 4
f
e e
H
=
0 2
e f
t e
Note: Install second restrictor in
any run having more than 8 ft. of
vertical rise.
E L
D
H
M
a
i x
m
u
m
e f
t e
(
m
)
3
1
4 /
(
. 0
9 9
) 1
7
5 .
(
. 2
8 2
) 6
0 1
3
4 /
(
. 3
7 2
) 6
4 1
(
. 4
6 2
) 7
7 1
1
4 /
(
. 5
5 2
) 8
0 2
(
. 6
) 2
( t
2 1
4 .
m
)
M
a
. x
6 (
2 .
m
)
M
a
. x
E L
E
H
M
a
i x
m
u
m
e f
t e
(
m
)
3
1
4 /
(
. 0
9 9
) 1
7
5 .
(
. 2
8 2
) 6
0 1
3
4 /
(
. 3
7 2
) 6
4 1
(
. 4
6 2
) 7
7 1
1
4 /
(
. 5
5 2
) 8
0 2
(
. 6
) 2
( t
2 1
4 .
m
)
M
a
. x
6 (
2 .
m
)
M
a
. x
19
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