Assembling The Tubing System - NuTone VX1000C Installation Instructions Manual

ASSEMBLING THE TUBING SYSTEM

Once you have installed all your inlets, you can complete
the network of tubing that connects your inlets to the
power unit. This network consists of the following parts:
90° Elbows
the inlet lines to the branch lines.
Also used for making smooth 90°
turns in branch lines or trunk lines.
45° Elbows
tubing turn in branch or trunk lines.
90° Tees
lines to the trunk lines.
Stop Couplings
two lengths of tubing.
Flexible Tubing
obstacles or to make difficult S-turns
in branch lines. This tubing is
supplied in a 36" length; it is not the
same as the inlet flex tube.
PVC Tubing
of tubing used for inlet, branch and
trunk lines.
Use the tubing and fittings to run branch lines from the inlet
tubing to a main trunk line. Begin at the farthest inlet from
the power unit and work your way toward the power unit.
When you assemble sections with elbows and tees, make
sure the curve in the fitting is aligned so that the air flows
toward the power unit.
Assemble the entire network of tubing and fittings, making
sure every joint is accurately cut and aligned. Then, go back
and cement all the joints. You may run the wiring and make
the wiring connections after the network is assembled and
cemented, or you may make the wiring connections as you
assemble the network. Use the method that best suits your
needs.
– Used for connecting
– Used for a 45°
– Used to connect branch
– Used to join
– Used to bypass
– 8' straight sections
Beginning the Trunk Line
Start the inlet line which is farthest from the power unit.
Place 90° elbow onto a section of tubing and align it with the
inlet tubing at the height it will run across the attic joists.
Mark the inlet tubing where the elbow will join, allowing 5/8˝
for the tubing that inserts into the fitting collar.
Now, cut the inlet tubing at the marked line. Make sure the
cut is straight and even. Attach the elbow and check its fit.
Then, insert the first section of tubing into the other end of
the elbow.
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