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Vertical Termination
127 mm x 203 mm Flueing - Vertical Flex Vent Kit (946-772)
Vertical Termination - 127 mmx 203 mm Flueing - Vertical Flex Kit (Part 946-772)
Must choose 1 of the following:
Part #
Description
946-772
Vertical Flex Kit 127 mm x 203 mm x 6.1 m
The roof flashing is not included with this kit and must be
purchased separately.
Vertical flex must still abide by the limitations set in the
vertical venting charts.
1.
Maintain the 38 mm clearance (air space) to combustibles when
passing through ceilings, walls, floors, enclosures, attic rafters or
other nearby combustibles. Do not pack air spaces with insulation.
Check venting sections for the maximum vertical rise of the venting
system and the maximum horizontal offset limitations.
Ensure that you maintain clearances around enclosures, walls,
below or above floors, floor joists, etc. Each appliance has different
clearance requirements (top,sides,bottom). See specific appliance
manual for details.
2.
Set the appliance in its desired position. Drop a plumb bob down
from the ceiling/floor joist to the position of the appliance flue exit
and mark the location where the vent will penetrate the ceiling.
Drill a small hole at this point. Next drop a plumb bob from the
roof to the hole previously drilled at the ceiling level and mark
the spot where the vent will penetrate the roof.
3.
Cut a hole in the roof centered on the small hole placed in the
roof in the previous steps. The hole should be a minimum of 279
mm. The hole may be round and or square.
4.
Slip the flashing under the shingles and line up flashing so it is
centered to the hole (shingles should overlap half of the flashing)
as per Diagram 1.
5. A ceiling firestop/firestop spacer must be installed when passing
through each floor or ceiling level. To install the ceiling firestop/
firestop spacer in a flat ceiling or floor joist cut a 279 mm square
hole. Frame the hole as show in Diagram 2 and install the ceiling
firestop. Slide the top attic insulation spacer onto the top of the attic
insulation shield/firestop - See Diagram 2a. Secure with 4 screws/
nails. If more than one is required, these can be purchased separately.
Note: The ceiling firestop/firestop spacer may be cut down to size if
this shield is too high for the application.
79
Diagram 2
920-380
Diagram 1 The upper half of the flashing
is installed under the roofing material
and not nailed down until the chim-
ney is installed. This allows for small
adjustments.
Diagram 1
Ceiling firestop
Termination Cap
Storm Collar
Roof support
Diagram 2a
6.
Determine the overall height of the chimney from the top of the
appliance to the underside of the vent. If required cut the flexible
inner and outer pipe to the desired length up to a maximum of 6.1
m.
7. Put a bead of Mill-Pac around the 127 mm collar on the appliance
and slide the inner flex pipe over the inner collar of the appliance
and secure with a minimum of 3 screws.
8. Install 127 mm spacers around 127 mm flex.
9.
Repeat Step 7 to install the outer pipe to the outer collar of the
appliance.
Note:
If an offset is necessary in the attic or floor joists it is
important to support the vent pipe every 914 mm 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.
10. Attach the rigid pipe section to the adaptor by using MillPac on
the inner/ outer pipe. Use 3 screws to secure outer pipe.
11. Secure inner flex pipe to pipe adaptor using Mill-Pac over the
adaptor. Slide the inner pipe over the flex to rigid adaptor and
secure with 3 screws.
12. Repeat Step 11 to secure outer flex.
Page 1
Flashing
Firestop spacer to prevent debris
from falling into the ceiling firestop
Ceiling firestop
Enclosure
Ceiling firestop
City Series ACV60E | 49
installation
03.10.21
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