Installing Inlet Tubing - NuTone VX1000C Installation Instructions Manual

Installing the Inlet Tubing
When your planning is complete, you will have to deter-
mine where all the inlets and the power unit will be locat-
ed. You have also mapped out the location of your trunk
line and found the access you need to run vertical tubing
from one level of your house to another level, You should
have acquainted yourself with the methods of joining
plastic tubing and acquired the tools you'll need to install
your NuTone Central Vacuum System. Now, you can
begin installation.
The first step to install the inlet tubing which connects the
wall inlets to the branch lines. As explained before, the
inlet lines run inside interior walls. You will find access to
these walls through your attic or basement. Briefly, you
want to find the exact location in the wall, drill an access
hole through the wall plate or header, and insert the tub-
ing into the wall cavity.
This part of your installation requires close observation
and careful measurements. Take your time and make
sure you accurately line up your access holes with the
locations you've chosen for your wall inlets.
Locating Attic Access Holes
Drill the access holes directly above the inlet location. To
accurately locate the access hole, you must find the
space between wall studs where the inlet is to be located.
Observe the are around the inlet location. Look for refer-
ences you might be able to find in the attic: electrical
wiring, ductwork, doorways, etc. Measure and note the
distance from these references to the inlet location.
Enter the attic and find the inlet wall. Have a helper
downstairs knock on the top of the wall right above the
inlet location; locate the general area by following the
sound. Most likely, you will have to clear away insulation.
Ask your helper to continue knocking until you locate the
area between wall studs directly above the inlet location.
Next, measure the thickness of the wall. Mark the exact
center of the wall where you will drill the access hole.
Remember that the access hole must be placed exactly
in the center of the wall.
Locating Basement Access Holes
To locate access holes in the basement, remove the toe
molding or baseboard at the base of the inlet wall.
Carefully loosen the molding or baseboard by inserting
the blade of a putty knife behind it. Force another putty
knife between the first knife and the baseboard or wall.
Gently hammer a cold chisel between the two knife
blades, prying the loosened molding away from the
baseboard or the baseboard away from the wall.
Directly below the inlet location, drill a 1/16" reference
hole through the floor into the basement. (If you're drilling
through carpet, use an awl to slightly open the weave.
This will keep the carpet from wrapping itself around the
drill bit.) Insert a piece of scrap wire or a clothes hanger
into the reference hole so you can easily find the hole in
the basement.
Once you've found the location in the partition wall, you
must center the access hole in the middle of the wall.
Measure half the thickness of the wall and mark the
center of the wall where you will drill the access hole.
If you cannot see the plate, you can determine this meas-
urement from upstairs. At the nearest doorway, measure
the thickness of the wall, including the baseboard.
In the basement measure a distance equal to half
the thickness of the wall, using the reference hole as a
starting point.
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