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38
Venting Arrangements for Horizontal Terminations
36
RIGID PIPE: MUST USE RIGID PIPE ADAPTOR 770-994 AND 946-606 PIPE REDUCER TO 4" X 6 5/8"
Note: Rigid pipe is approved for up to 72 feet.
34
FLEX VENT: MUST USE REDUCER 946-758 TO 4" X 6 5/8"
Note: Flex pipe is approved for up to 40 feet using 2 X 946-756-- 20 foot flex kits.
32
The gas power vent system is designed to allow the installation of a gas appliance when typical vent configurations (shown in this manual) are not possible.
Note: The CV72EPV comes with a 5"inner and 8"outer collar which must be reduced to 4" x 6 5/8" in all applications. Must be terminated horizontally. Verti-
30
cal terminations are not permitted.
28
2
4
6
8
10
0
40
26
38
36
24
34
32
22
30
28
26
20
24
22
18
20
18
16
16
14
14
12
10
72' overall length Max.
12
8
(shown with 5 - 90º elbows)
6
4
10
2
0
-2
-3 Ft. max.
-4
-6
-8
Vent Restrictor Position
-3 Ft. max.
No Vent Restrictor Required for the CV72EPV
2
4
0
12
14
16
18
20
22
24
26
28
72' overall length Max.
(shown with 5 - 90º elbows)
Restrictor – Fully Open
8
6
Shown with 2 elbows (negative run 72')
4
2
0
-2
-4
-6
-8
Set 0
Fully open
Factory Set
3 1 8 "
6
8
10
12
Horizontal (Feet)
30
32
34
36
38
40
42
44
46
72' run (no rise)
72' overall length Max.
(shown with 5 - 90º elbows)
Important: Minimum overall vent run must be 4 feet.
Maximum total vent length = 72' maximum of six - 90° elbows permitted.
One 90° elbow = two 45° elbows.
Maximum total negative vent length = 7'.
Note: Maximum length of 72 feet is based on overall length of combined chimney components.
14
16
18
20
48
50
52
54
56
58
60
62
64
City Series CV72EPV |
22
24
26
28
installation
72' overall length Max.
66
68
70
72
(shown with 5 - 90º elbow
Restrictor – Fully Ope
Sh
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