City Series CST60E
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installation-power vent
Vertical Inline Power Vent Terminations - Flex Pipe (Part # 946-755)
Diagram 1; The upper half of the flashing is
installed under the roofing material and not
nailed down until the chimney is installed.
This allows for small adjustments.
1.
Maintain the 1-½” (38 mm) clearance (air space) to combustibles when
passing through ceilings, walls, floors, enclosures, attic rafters, or other
combustibles. Do not pack air spaces with insulation. Check venting
sections of this manual for the maximum vertical rise of the venting system
and the maximum horizontal offset limitations.
Ensure that you maintain clearances around enclosures and walls, and
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.
6
.
Determine the overall height of the chimney from the top of the appliance
to the underside of the inline power vent. If required, cut the flexible inner
and outer pipe to the desired length, up to a maximum of 20 feet (3.7 m).
7. Put a bead of Mill-Pac around the 4" (102 mm) collar on the appliance and
slide the inner flex pipe over the inner collar of the appliance and secure
with a minimum of three screws.
8. Install 4" (102 mm) spacers around 4" (102 mm) flex.
9. Repeat Step 7 to install the outer pipe to the outer collar of the appliance.
10. Repeat Step 7 to secure 4" (102 mm) flex to inline power vent. Repeat
steps to attach outer collar to inline power vent.
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 10-¼ inches. The hole
may be round and or square.
4.
Slip the flashing under the shingles and line it up so it is centered on the
hole. Shingles should overlap half of the flashing, as per Diagram 1.
60
-1/4
Ceiling firestop
Diagram 2
Diagram 2a
Enclosure
Ceiling firestop
Flashing
Termination Cap
Storm Collar
Roof support
Ceiling firestop
Firestop spacer to prevent debris from
falling into the ceiling firestop
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 10- ¼ inch square hole. Frame the hole as
show in Diagram 2 and install the ceiling firestop. Slide the top attic insula-
tion spacer onto the top of the attic insulation shield/firestop (see Diagram
2a). Secure with four screws/nails. If more than one is required, these can
be purchased separately.
Must choose 1 of the following:
Part # Description
46DVA-F12
Flashing 7/12 - 12/12
46DVA-F6
Flashing 0/12-6/12
46DVA-FF
Flat Roof Flashing
11. Determine the overall height of the chimney from the top side of the inline
power vent to the underside of the flashing. If required, cut the flexible inner
and outer pipe to the desired length.
12. Put a bead of Mill-Pac around the inner pipe adaptor (supplied with the
inline power vent) and attach the inner pipe adaptor to the inner collar of
the inline power vent (see Diagram 3, next page).
13. Put a bead of Mill-Pac around the other end of the inner pipe adaptor and
slide the 4" (102 mm) flex over it; secure with three screws.
14. Install 4" (102 mm) spacers around 4" (102 mm) flex.
15. Put a bead of Mill-Pac around the outer collar of the inline power vent and
slide outer pipe over the inline power vent; secure with 3 screws.
16. Attach the rigid pipe section to the flex-to-rigid adaptor using Mill-Pac on
the inner/outer pipe. Use three screws to secure outer pipe.
17. Use Mill-Pac to secure the inner flex pipe to the pipe adaptor. Slide the
inner pipe over the flex-to-rigid adaptor and secure with three screws.
18. Repeat Step 17 to secure outer flex.
NO
TE
• The ceiling firestop/firestop spacer may be cut down to size if it
is too high for the application.
NO
TE
• If an offset is necessary in the attic or floor joists it is important to
support the vent pipe every 3 feet (914 mm) to avoid excessive
stress and sagging of the vent pipe. Wall straps (3 in total) are
provided for this purpose. All round/plumbers strapping may also
be used if further supports are required.
IMPOR
TANT
• For the CB60EPV/CV60EPV/CV72EPV/CB72EPV/CST60E
models, you must purchase the 946-758 reducer for the
top of the appliance. It must be attached to the inner and
outer flue collar of the applilance prior to installation.
• The roof flashing is not included with this kit and must
be purchased separately.
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