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Vertical Flex Extension Kit for North America
Part #946-769
Vertical Flex Extension Kit (Part # 946-769)
20 foot (6.1 m) flex pipe extension
Vertical Flex Extension Kit includes:
• 20 ft. flex pipe (inner & outer) with 10 spacers
• 3 wall straps
• Flex adaptor
• Hardware
Used in conjunction with the 946-772 Vertical Flex Vent Kit for verti-
cal installations.
1. Stretch out both inner 5" (127 mm) and outer 8" (203 mm) pipe
up to a maximum of 20 ft. (6.1 m).
The inner and outer pipes may be cut if only a
short length is required.
2. Install spring spacers around 5" (127 mm) inner pipe as shown.
Slide outer flex pipe over and all the way down the 5" (127 mm)
pipe.
3. Apply a bead of Mill Pac around the perimeter of the 5" (127
mm) inner collar of the flex adapter and slip the 5" (127 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 1.4" (35 mm). Fasten with 3 screws.
4. Apply a bead of Mill Pac around the perimeter of the 8" (203
mm) outer collar of the flue adapter and slip it over the 8" (203
mm) outer flex pipe from the vertical termination kit ensuring that
the outer flex pipe overlaps the collar by at least 1.4" (35 mm).
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 for installation of the
complete vent system.
If an offset is necessary in the attic or floor joists
it is important to support the vent pipe every 3 ft.
(0.91 m) 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
5" (127 mm) inner pipe - 20 ft. (6.1 m)
8" (203 mm)
outer flex pipe
20 ft. (6.10 m)
1
installation
10 spring spacers
Flex adaptor
3 wall straps
City Series CV60E-1 |
63
06.11.18
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