Extron electronics SF 3C LP, SF 3CT L Setup Manual
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SF 3C LP and SF 3CT LP • Setup Guide
This setup guide contains installation information about the SF 3C LP and SF 3CT LP full range speakers. These speakers can be
installed by a single trade installation procedure or by a multi trade installation procedure. The entire assembly is plenum rated.
WARNING: Potential risk of severe injury. Installation and service must be performed by authorized personnel only.
AVERTISSEMENT : Risque potentiel de blessure grave ou de mort. L’installation et l’entretien doivent être effectués
par le personnel autorisé uniquement.
NOTE: Installation of conduit and conduit adapters must conform to all applicable building codes and local ordinances.
Installing the SF 3C LP or SF 3CT LP in
a Suspended Ceiling
For hard ceiling installations, see the SF 3C LP and
SF 3CT LP User Guide.
1. Remove power from all devices.
NOTE: If the grille is to be painted, see the user
guide for more information.
2. Cut a hole for the SF 3C LP or SF 3CT LP. Use the
provided cutout template to outline the hole to be cut in
the ceiling tile, as described below.
a. Remove the ceiling tile, and draw diagonal lines
across it from opposite corners to locate its center.
Mark the intersection where the lines cross.
b. Position the center hole of the cutout template
directly over the center of the tile, marked in
step2a.
c. Trace a circle on the ceiling tile around the cutout
template.
d. Cut out the circle traced in the ceiling tile.
e. Replace the ceiling tile in the ceiling.
3. Attach two V-rails and one C-ring above the hole cut
in step 2, as described below.
a. Assemble two V-rail half sections so that they
become one single piece by tting the tab of
one end into the slot of the other end. Open the
V-rail until it locks together, as shown. Repeat this
procedure for the other V-rail.
b. Remove a ceiling tile adjacent to the tile with the
hole.
c. Place both assembled V-rails on the cut ceiling tile
and position them equally on either side of the hole.
The ends of the V-rails go over the ceiling grid.
d. Position the C-ring assembly on the two V-rails so
that the C-ring is centered over the hole.
C-ring
-rail
e. Secure the C-ring to the V-rails using two screws.
4. Route the speaker wires through the ceiling tile hole.
5. Configure the terminal cover and captive screw
connector, as described below.
a. The terminal cover has one alternate hole available
covered by a knockout. This hole may be used for
loop out when using conduit. If this knockout needs
to be removed, do the following:
i. With the terminal cover still attached to the
speaker, place the tip of a at-head screwdriver
against the notch of the knockout.
ii. Lightly tap the screwdriver with a hammer to
remove the knockout.
1
SF 3C LP and SF 3CT LP • Setup Guide (Continued)
Wiring Multiple Speakers Using Loop-through
b. Loosen the two side terminal cover screws and
remove the cover.
Remove the
terminal cover.
Alternate
Knockout
c. Congure the terminal cover.
When not using conduit:
Route the speaker wires through the cable clamp.
When using conduit:
Remove the cable clamp and install the conduit into
the cover opening. Secure the conduit to the cover
with the locking nut and pull the speaker wires from
the conduit.
d. Strip 0.2 inches (5 mm) from the wire ends.
e. Use one of the following three methods to attach
the speaker wires to the captive screw connector
(depending on the conguration).
When a chain of speakers is wired this way, disconnecting
one speaker removes power from all downstream speakers.
(Red)
1
(Black)
(Red)
(Black)
Power Amplifier
+
–
–
IN
LOOP
IN
Speaker 1
+
LOOP
+
–
–
IN
LOOP
IN
Speaker 2
+
LOOP
Wiring Multiple Speakers in Parallel
When a chain of speakers is wired this way, disconnecting
one speaker does not remove power from the remaining
speakers in the chain.
2
(Red)
(Black)
(Red)
(Black)
(Red)
(Black)
Power Amplifier
+
–
–
IN
LOOP
IN
Speaker 1
+
LOOP
+
–
–
IN
LOOP
IN
Speaker 2
+
LOOP
Wiring a Single Speaker
(Red)
(Black)
3
Wire Gauge Table
Number of Wires per
Connection Point
Power Amplifier
+
–
–
IN
LOOP
IN
Speaker 1
+
LOOP
2
(Red)
(Black)
Maximum
Wire Gauge
1 12 AWG
2 16 AWG
4 18 AWG
Flexible Conduit Adapter
ATTENTION:
• Do not tin the wire leads before installing
into the connector. Tinned wires are not
as secure in the connector and could be
pulled out.
• Ne pas étamer les conducteurs avant de
les insérer dans le connecteur. Les câbles
étamés ne sont pas aussi bien xés dans
le connecteur et pourraient être retirés.
f. Insert the captive screw plug into the four-pole
receptacle of the speaker.
Using a cable clamp:
Using a conduit adapter:
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