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VERTICAL TERMINATIONS (CONT.)
INSTALLATION INTO AN EXISTING MASONRY CHIMNEY (CONT.)
FIG. 24
Step 7. If additional lengths of flex liner are needed
to span the chimney height, use a flex
coupler to connect the pieces of flex liner
together. Connect the flex to the coupler by
using four sheet metal screws for each side
(Figure 24).
Step 8. Secure the top adapter to the flashing. Use
three sheet metal screws through the side
of the top adapter into the flange on the
flashing (Figure 25). Twist lock the high wind
termination cap (SDV #991) on to the top
adapter.
Step 5. Connect the flex liner to the top adapter
using three sheet metal screws (see Figure
20).
Step 6. Feed the flex liner through the flashing into
the chimney. Carefully feed the flex liner
down the chimney to the bottom and out the
opening in the masonry wall, forming an
angle to line up the flex liner with the vent
opening on the appliance.
WARNING: Do not let the flex liner sag
below the level at which it will connect
to the appliance or connector. This could
allow hot gas to become trapped and
potentially become a fire hazard. The flex
liner path should always be sloped up
toward the termination cap.
FIG. 25
TOP ADAPTER