VERTICAL TERMINATIONS (CONT.)
INSTALLATION INTO AN EXISTING MASONRY CHIMNEY (CONT.)
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. 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).
TOP ADAPTER
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.
FIG. 25
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