Owner's Manual

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CAUTION: All wiring installation must conform to local electrical codes.
Wiring in the ground (soil) must be in conduit. All wiring
installation must have a good, solid mechanical connection.
Protect all connections and/or splices against short circuits
using wire nuts or electrical tape.
7.0 TRIM OUT (INLET VALVES)
Do Not Cement inlet valves to the wall valve bracket. Valves require
replacement on occasion and if cemented to the duct system, they
cannot be removed or replaced.
8.0 VACUUM TUBING INSTALLATION EXISTING for CONSTRUCTION
8.1 Overhead Installation (Figure 8)
Two people are normally required to perform overhead installations.
Power Unit installation requirements are the same as in new
construction. Wall inlet valves should be limited to interior walls.
Exterior walls contain insulation and are not accessible from inside the
roof to drill holes for the vacuum duct. After marking each wall valve
location, check inside the roof area to see if a hole can be drilled in the
header tape for the tubing. Before drilling, check for electrical wiring. If
there are no obstructions, drill a hole in the header plate. It is possible
that you will hit a fire block about halfway down the wall. If this is the
case, you must use an extension drill and drill through the fire block.
Make sure your drill is straight up and down or you will come through
the side of the wall.
After holes are drilled, lower tubing from inside the roof to the wall
valve. Seldom is the roof high enough to use a single length of tubing.
As the tube is dropped down the wall to the valve location, several
short lengths of tubing should be cemented together with a coupling
(Part VM102).
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Figure 8
Figure 9
At the valve location,
drill a 1" diameter hole
in the wall. Using a
flashlight from the attic,
check for hole
alignment. Then cut a
rectangular hole 2 ½"
horizontal and 3 ½"
vertically from the
center of the 1"
diameter hole. This hole
will allow an adapter
(Part VM107) to make
contact with tubing
inside the wall.
CEMENT THE
ADAPTER TO THE TUBING. Secure the adapter to the mounting
bracket (Part VM142) with screws. After the mounting bracket is
attached to the adapter, the completed assembly inside the wall is
ready for the inlet valve (Part VM195). DO NOT CEMENT THE INLET
VALVE. Tighten the valve against the wall with screws to the mounting
bracket.
8.2 Under The Floor Installation
(Figure 9)
In homes with a pier and beam
foundation or basement, either
the overhead or an under the
floor installation can be made.
Sometimes under the floor
installation is easier in an existing
home, especially if the roof has a
low pitch and clearances in the
attic adds to the installation
problem. Under the floor
installation also eliminates the
risk of fire blocks in the wall.
Shorter risers are also utilized,
eliminating the longer tube drop
from the attic. Vacuum tubing
should be secured to floor joist
with perforated nailing strips or tube straps.