8
INSTALLATION IN NEW CONSTRUCTION (
CONT
'
D
)
INSTALLING THE TUBING
Use the following installation guidelines when installing tubing.
B
Start tubing installation at farthest inlet and work toward the
power
unit.
C
Tubing run to the power unit should be as straight as
possible.
D
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.
E
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.
F
Refer to figure at right. 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 connection to
each
inlet.
G
Cut a 2½" diameter hole in sole plate, header or stud
directly in line with opening of inlet bracket fitting. See figure
below for center line dimensions.
H
Refer to figure below. Measure length of tubing needed to
connect inlet to trunk line. Allow approximately 3⁄4" of tubing
for inserting into fittings.
I
Refer to figure at right. Cut tubing,
keeping cut square.
J
Refer to figure at right. Remove
burrs from both inside and outside
of
tubing.
K
Before cementing, pre-assemble section to inlet fitting,
check for proper length.
L
Refer to figure at right Apply PVC
cement (Model 379) to outside of
tubing. Coat tubing approximately 1"
back. Take care to keep cement
from inside of tube.
M
Refer to figure at right. Insert tubing
into fitting with a twisting motion to
evenly spread cement. Be sure
tubing is firmly seated in fitting.
N
If fittings have been attached to tubing at the end opposite the
inlet bracket, be sure alignment is proper before cement sets.
O
Refer to figure at right. Tape wire
to tubing to hold in place and insert
through hole in inlet bracket.
P
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.
SIDE MOUNTING
MODEL CF361 MOUNTING
2”
FACE MOUNTING
MODEL CF329 MOUNTING
FACE MOUNTING
2½” DIA. HOLE
THROUGH SOLE PLATE
AD0055A
1
13
/
16
”
1
13
/
16
”
2½” DIA. HOLE
THROUGH SOLE PLATE
1
13
/
16
”
2
3
/
8
”
1
13
/
16
”
AD0017A
INCLUDE FITTING RECESS
IN MEASUREMENT
TUBING MEASUREMENT
PVC TUBING
FITTING
3/4”
(19 mm)
FITTING
3/4”
(19 mm)
AO0012
AD0018
WARNING
!
When tubing is run through the wall stud, sole
plate, headers or else where 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.
AR0016
AR0017
AR0020
AE0040
