Vermont Castings RAD- VTBB Installating And Operation Manual page 18

Radiance Direct Vent Gas Heater
12"
(305mm)
Max. Length
Fig. 25 Assemble the wall sleeve and firestop.
ZCS103
4. For CFM Vent Pipe only: If necessary, measure
Zero Clearance Sleeve
to determine the vertical length (X) of pipe required
& Firestop
from the adapter pipe to the wall cutout centerline,
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including a 2" overlap at the joint. (Fig. 26) use a
hacksaw or tin snips to trim the pipe as needed.
Fig. 26 Determine the vertical pipe length.
5. Install first the inner then the outer straight pipe
section(s), trimmed end down, to the point of the el-
bow. Drill 3 holes through each joint and fasten with
sheet metal screws.
6. Install the elbow using 3 sheet metal screws at each
joint.
7. Measure, and cut if needed, the appropriate length
of pipe section needed to make the connection
through the wall. Include a 2" overlap; i.e. from the
elbow to the outside wall face, about 2" or the dis-
tance required if installing a second 90° elbow. (Fig.
27)
8. Slip the wall plate and trim collar over the interior
end of the horizontal pipe and install into the wall
1818
Sleeve
#8 Sheet
Metal Screws
Firestop
ZCS103
X
RADIANCE
ST214a
measure vertical vent
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Fig. 27 Measure the horizontal length.
sleeve. Seal the joint inside the wall plate if needed
to keep cold air from being drawn into the home.
9. Connect the horizontal pipe to the elbow. Fasten the
wall plate to the pipe with three sheet metal screws.
Slide the trim collar up against the wall plate to cover
the screws. (Fig. 28)
10. For both CFM and DuraVent Systems: Install the
vent terminal. (Fig. 29) Apply high temperature seal-
ant one inch from the ends of the inner and outer
collars. Guide the inner and outer vent termination
collars into the adjacent pipes. Double check that
the vent pipes overlap the collars by 2". Fasten the
termination to the wall with the screws provided, and
caulk the joint with weatherproof sealant.
Wall
Sleeve
ST652
ST216
Fig. 28 Install the horizontal pipe and wall plate parts.
Seal Both Termi-
nal Ends
Caulk Plate Joint with
Weatherproof Sealant
Fig. 29 Install the vent terminal.
X
ST215
measure thru wall
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Wall Plate
ST216
install pipe thru wall
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ST217
install wall terminal
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ST215
Trim Collar
ST217
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