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vertical flue extension kit (approved models)
VERTICAL FLUE EXTENSION KIT (APPROVED MODELS)
Horizontal power vent kit (CV72EPV only)
HORIZONTAL POWER VENT KIT (CV72EPV ONLY)
(part # 946-756)
(PART # 946-756)
20 foot Flex pipe Extension
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 2 946-756 may be used up to a maximum of 40 feet.
Only approved for model # CV72EPV power vent model for any horizontal
terminations.
1. Stretch out both inner 4" (100 mm) and outer 6 7/8" (175mm) pipe up to
a maximum of 20 feet.
Note :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" (100mm) inner
collar of the flex adapter and slip the 4" (100mm) 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" (35mm). Fasten with 3 screws.
4. Apply a bead of Mill Pac around the perimeter of the 6-7/8" (175mm) 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 instal-
lation instructions for installation of the complete vent system.
Note: 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.
All round/plumbers strapping may also be used if further supports are
required.
919-696
4" (100mm) inner pipe
20ft.
6-7/8" (175mm)
outer flex pipe
20ft
1
installation
10 spring spacers
flex adaptor
3 wall straps
Note:
CV72E Power vent model Only - The flex
adaptor which is included with this kit is only
required when joining two of the 946-756
flue extension kits to a maximum of 40 feet.
If only 1 - 946-756 20 foot kit is used the flex
adaptor is not required.
City Series CV72EPV |
49
06.11.18
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