Instructions / Assembly

Drilling the Access Holes
Once you are certain that you’ve located the center of
the wall directly above the inlet location, use a 2 ½” hole
saw to cut the access hole through the wall plate
or header and into the wall cavity. (A 1⁄2” drill is
recommended.) Carefully remove the drill from the hole.
Now, use a flashlight to inspect the wall cavity through
the access hole. Make sure no hidden obstacles will
interfere with the tube installation. (If this inspection
reveals an obstacle, find a new inlet location.) Repeat
this procedure in your attic or basement until your access
holes are drilled.
Assembling the Inlet Tubing
Once you’ve drilled the access holes, you assemble the
inlet tubing and insert it into the wall cavity. Refer to
“Working With Plastic Tubing” on pages 5-6 before you
begin to assemble the inlet lines.
Select a section of plastic tubing and an 8” section of the
flexible inlet tubing. Apply cement to the outside of the
plastic tubing and to the inside of the flexible tubing. Join
the two pieces together and allow 5 minutes for them to dry.
Cut a piece of low voltage wire which is long enough for
the complete inlet line, allowing 6” for connections to the
inlet wall plate. Secure the wire to the tubing with
electrical tape.
Tuck the 6” wire lead
inside the flexible
tubing so that it will not
snag inside the wall.
If space permits, you
can assemble the
entire inlet line by
joining two sections of
tubing with a stop
coupling before dropping
the assembly into the access hole. (Remember to only
glue the outside of the tubing when joining two pieces of
PVC tubing.) Oftentimes, tight attic spaces require you to
begin your drop and then join the second section of
tubing. Of course, the order of assembly, and the length
of tubing required depend on your attic space and your
wall height.
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