Duraseal Flex - DuraVent DuraSeal DS Manual

DURASEAL FLEX

*IMPORTANT NOTE
When installing DuraSeal Flex, the direction of exhaust flow is always from the ap-
pliance. There is an arrow printed on each section of liner and component that will
point in the direction of the exhaust gas. If the inner liner is installed correctly the
proper direction can be determined by running your fingernails up the inside wall of
the liner. If the direction is correct, your nails will catch at the seams of the inner
wall. If it is incorrect, your nails will slide smoothly across the inner surface.
Attaching adapters to DURASEAL FLEX liner
1- The adapter without the latches is the Female Flex Adapter and designed for the
top of the flex liner. The Adapter with the latches and the black Viton O-ring is
the Male Flex Adapter and is designed for the bottom of the flex liner. If cutting
the liner on the field is required, make sure the cut is square.
2- Make a mark on both ends of liner at 1 5/8" from each end. (Figure 12a) That
mark will act as a reference point when the adapters are fully seated onto the flex
liner. (Figure 12b)
3- To be sure everything is right before putting the sealant between both tubes, do a
dry fit test by pushing the liner into the adapter until it reach the bottom between
the inner tube and the outer tube, then remove it. (Figure 13)
4- Add the sealant S-650 in the channel of the Male Flex Adapter. Put enough sealant
so the channel gap is evenly covered all around. (Figure 14)
5- Push the adapter on the liner (the inner tube fits inside the liner and the outer tube
fits outside the liner) all the way in. (Figure 15)
6- Push the little natches. (Figure 16)
7- Repeat steps 3 through 6 for the other end with the female flex adapter or the flex
to flex adapter.
8- Before installation, cure for a minimum of 24 hours or follow the cure time called
out by the silicone manufacturer.
1 5/8"
1 5/8"
Figure 12a - DuraSeal Flex liner
14
1 5/8 min
1 7/8 MAX
Figure 12b - Flex Adapter small cut / catch
Figure 13 - Flex Adapter dry fit test
apply sealant
Figure 14 - Flex Adapter apply sealant
Small cut / catch