Installing The Tubing - NuTone VX1000C Installation Instructions Manual

INSTALLING THE TUBING

Use the following installation guidelines when installing
tubing.
1. Start tubing installation at farthest inlet and work
toward the power unit.
2. Tubing run to the power unit should be as straight as
possible.
3. When assembling sections with elbows and tees,
make sure the curve in the fitting is aligned so that
the air flows toward the power unit.
4. Branch lines should always join the trunk line from
above or from the same level. Never join a branch
line from an angle below the trunk line.
5. Refer to Figure 25 page (9). Run low voltage wiring
(Model 376UL) and secure wiring to tubing as tubing
is installed. Model CF380 Pipe Support can be used
to support long runs of tubing (position near joists)
and to clip wire along tubing. Secure tubing to joists
or studs. Leave approximately 6" of wire for connec-
tion to each inlet.
6. Cut a 2 1⁄2" diameter hole in sole plate, header or stud
directly in line with opening of inlet bracket fitting.
Note
Figure 13 for center line dimensions.
7. Refer to Figure 14. Measure length of tubing needed
to connect inlet to trunk line. Allow approximately
3⁄4" of tubing for inserting into fittings.
8. Refer to Figure 15. Cut tubing, keeping cut square.
9. Refer to Figure 16. Remove burrs from both inside
and outside of tubing.
1 0 . Before cementing, pre-assemble section to inlet fit-
ting, check for proper length.
11 . Refer to Figure 17. Apply PVC cement (Model 379)
to outside of tubing. Coat tubing approximately 1"
back. Take care to keep cement from inside of tube.
1 2 . Refer to Figure 18. Insert tubing into fitting with a
twisting motion to evenly spread cement. Be sure
tubing is firmly seated in fitting.
1 3 . If fittings have been attached to tubing at the end
opposite the inlet bracket, be sure alignment is prop-
er before cement sets.
1 4 . Refer to Figure 19. Tape wire to tubing to hold in
place and insert through hole in inlet bracket.
1 5 . Connect each inlet line and branch line into main
trunk line. Complete low voltage wiring as main trunk
line is continued back to power unit.
Caution:
When tubing is run through the wall stud, sole
plate, headers - or anywhere that building materials will be
attached - place a nail plate (Model 378) over that area (on
both sides if necessary) to prevent nails from piercing tubing.
FIGURE 13
FIGURE 15
FIGURE 17
FIGURE 19
8
FIGURE 14
FIGURE 16
FIGURE 18