City Series CV72EPV
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65
installation
919-696
06.11.18
Used in conjunction with the 946-755 Vertical Flex kit for vertical installations
or for horizontal installations when using the power vent option only where a
maximum of two 946-756 may be used up to a maximum of 40 feet (12.19 m).
Only approved for power vent models for any horizontal termination.
1. Stretch out both inner 4" (100 mm) and outer 6 7/8" (175 mm) pipe up to
a maximum of 20 feet (6.1 m).
VERTICAL FLUE EXTENSION KIT (APPROVED MODELS)
HORIZONTAL POWER VENT KIT (CV72EPV, CB72EPV, CB40EPV, CV40EPV, & CC40EPV ONLY)
(PART # 946-756)
3 wall straps
flex adaptor
4" (100mm) inner pipe
20ft.
6-7/8" (175mm)
outer flex pipe
20ft
10 spring spacers
NO
TE
• Power vent model only - the flex adaptor included with this
kit is only required when joining two 946-756 flue extension
kits to a maximum of 40 feet (12.9 m). If only one 946-756
20 foot (6.1 m) kit is used, the flex adaptor is not required.
NO
TE
•
If an offset is necessary in the attic or floor joists it is important to sup
-
port the vent pipe every 3 feet to avoid excessive stress and sagging
of the vent pipe. Wall straps are provided (3 in total) for this purpose.
• Round/plumbers strapping may be used if further supports are required.
NO
TE
• The inner and outer pipes may be cut if only a short length is required.
2. Install spring spacers around 4" (100 mm) inner pipe as shown.
Slide outer flex pipe over and all the way down the 4" pipe.
3. Apply a bead of Mill-Pac around the perimeter of the 4" (100 mm) inner
collar of the flex adapter and slip the 4" (100 mm) inner flex pipe from the
Vertical termination kit over the flex adapter ensuring that the inner flex
pipe overlaps the collar by at least 1-3/8" (35 mm). Fasten with 3 screws.
4. Apply a bead of Mill-Pac around the perimeter of the 6-7/8" (175 mm)
outer collar of the flue adapter and slip it over the 6-7/8" (175 mm) outer
flex pipe from the vertical termination kit ensuring that the outer flex pipe
overlaps the collar by at least 1-3/8" (35mm). Fasten with the 3 screws.
5. Repeat steps to secure the other end of the flex adapter using the flex kit.
6. See vertical vent installation instructions or horizontal power vent installa-
tion instructions for installation of the complete vent system.
1
Vertical Flue Extension Kit (approved models)
Horizontal Power Vent Kit (CV72EPV, CB72EPV, CB40EPV, CV40EPV, & CC40EPV)
(Part # 946-756)
Summary of Contents for City CV72E Series
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