Installation
9
Prepare the liner assembly. Slide the
expanded end of the Tee body onto the liner
and tighten the draw band. Attach the Tee Cap
to the Tee Body in the same fashion. Do not
attach the Tee Snout at this time.
Note: DuraFlex SW
®
must be installed with the
arrow imprinted on the liner pointing AWAY
from the appliance! The rough side should face
towards the appliance.
Lower the liner into the chimney from the top
until the Tee reaches the thimble area. With
the draw band of the Tee Snout fully extended,
push the Snout through the thimble into the
chimney. Lower the liner and feed it through
the draw band of the Snout. Rotate the liner
until the Snout and Tee are aligned and tighten
the draw band securely.
In tight chimneys or chimneys with offsets,
it may be difcult to insert the liner with the
Tee attached. In such cases, feed a rope
through the hole of an appropriately sized VIC
Installation Cone, tie a knot in the end of the
rope and thread the Cone into the liner. Slide
the liner down the chimney until it reaches
the offset and the rope extends through the
thimble. Pull on the rope while a second
person at the top of the chimney pushes
downward and turns the liner clockwise.
When the liner reaches the thimble, remove
the installation Cone and install the fully
assembled Tee onto the liner.
Use when additional gas or oil appliances
need to be vented into the
(common vent), or it is used with an
ovalized liner instead of a round Tee section.
When a TO is installed into a round
, the liner must be at least one inch larger
in diameter than the diameter of the TO.
Cut an access hole into the masonry chimney
at the point where the TO is to be joined into
the liner. Use an appropriate diameter hole
saw (with pilot drill bit) and a reversible drill, to
make a pilot hole through the liner. Before the
main hole is cut, switch the drill into reverse
and press lightly but rmly against the liner to
cut the main hole. Remove the cutout portion
of the liner.
When cutting a TO into a DuraFlex SW
®
Liner, please read Tech Bulletin #1244.
Feed the TO’s draw band around the liner and
into the turnbuckle. Tighten the draw band.
Apply a bead of High Temp RTV Silicone
between the TO and liner.
Use the Tee Snout or TO to center the liner
within the chimney. Fill the space between the
Tee Snout or TO and the chimney structure
with masonry and mortar to form an airtight
seal. Silicone caulking may also be used for
this purpose.