Lennox Elite ELDV-35NM Installation Instructions Manual page 22
Eldv direct-vent elite series
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- Installation instructions manual (40 pages) ,
- Installation instructions manual (28 pages)
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HORIZONTAL VENT FIGURES / TABLES (CONTINUED)
Typical termination shown.
H 1
Wall Firestop/Spacer
(SV4.5HF)
See Table 9 on Page 20 as an aid in venting component selection
for a particular range of exterior wall thicknesses.
Figure 33
- Top Vent - THREE 90 DEGREE ELBOWS
22
When using Secure Flex
use Firestop/Spacer
SF4.5VF.
When using Secure
Flex, use Firestop/Spacer
SF4.5HF.
Firestop/Spacer
V 1
Wall Firestop/Spacer
(SV4.5HF)
Min. One Foot Vent
Section Required
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
TM,
Ceiling
(SV4.5VF)
H
V
T
A
B
E L
E
V
M
i
i n
m
u
m
H
M
a
i x
e f
t e
(
m
)
e f
t e
*
(
. 0
0 6
) 1
3
1
4 /
(
3
(
. 0
1 9
) 4
7
(
4
1 (
2 .
) 2
0 1
1
2 /
5
(
. 1
2 5
) 4
4 1
(
6
(
. 1
2 7
) 9
7 1
1
2 /
7
(
. 2
3 1
) 4
0 2
V
+
H
=
0 4
f
e e
( t
2 1
4 .
m
H
=
0 2
e f
t e
6 (
2 .
m
)
M
Example: If 20 feet total (H+H
) horizontal vent
1
run is needed, then 4 feet minimum of (V) vertical
vent will be required.
This table shows a 1(V) to 5(H) ratio. For every 1
foot of (V) vertical, you are allowed 5 feet of (H+
H
) horizontal run, up to a maximum horizontal
1
run of 20 feet.
An elbow is acceptable as 1 foot of vertical
rise.
Note: Install a second restrictor in any run
having more than 8 ft. of vertical rise.
m
u
m
(
m
)
. 0
9 9
) 1
. 2
3 1
) 4
(
. 3
) 2
. 4
6 2
) 7
5 (
3 .
) 3
(
. 6
) 2
)
M
a
. x
a
. x
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