Lowell UNIHORN LUH-15TI - Manual

Model: LUH-15TI (for intercom use)
INSTRUCTIONS: UNIHORN ® LUH-15TI
©2010 Lowell Manufacturing Company, 100 Integram Dr., Pacific MO 63069. Phone–800.325.9660 Fax—
636.257.6606. Lowell makes every effort to provide accurate information while reserving the right to change
specifications and/or improve manufacturing methods without notification. (lowellmfg.com)
No. i-201
(rev. 02.15.11)
pg. 1 of 2
The UNIHORN ® (model LUH-15TI for intercom use) is designed to mount
indoors or outdoors in either recessed or surface-mount applications. It can
be mounted with or without the trim ring and press-fit grille (included). In-
stallation should conform to all Federal, state and local codes and should
only be made by qualified service personnel.
Note: The LUH-15TI is designed for use in a talkback intercom system
and DOES NOT include a DC blocking capacitor that would be required
for speaker line supervision in a life safety system. See model LUH-15T
for life safety use.
UNIHORN ® Carton Includes: (1 ea.)
• Aluminum re-entrant horn with 70V/25V transformer (LUH-15TI)
• Aluminum trim ring: 9.6" dia. with 7.25" center cutout.
• Press-fit aluminum grille.
Tools Needed: (not included)
• Screwdrivers and tools for electrical connections.
Optional Accessories: (order separately)
Transformer settings on
horn can be adjusted
front or rear.
Trim ring ships with horn. It
can be discarded for installations
that do not use the press-fit
aluminum grille.
Press-fit
aluminum grille.
Inside diameter of trim
ring (7.25") can be used
as a cutout template.
Installation Methods / Accessories: the UNIHORN ® can be mounted with or without the trim ring and press-fit grille. In addition, the horn features
standard screw holes that will fit the optional LUH-VRG vandal-resistant grille or any standard 8" (screw-type) speaker grille. The LUH-VRG installs
with spanner-head screws and screwdriver. Standard grilles screw-mount to the UNIHORN ® and fit various backboxes. See individual product spec
sheets for more information on standard 8" speaker grilles and backboxes.
Installation Method Grille Backbox / Trim Plate T-bridge
Open Installation No grille N/A N/A
Press-fit aluminum grille* N/A N/A
LUH-VRG vandal-resistant grille* N/A N/A
Drywall Press-fit aluminum grille No backbox N/A
LUH-VRG vandal-resistant grille No backbox N/A
Lay-in Tile Ceiling Press-fit aluminum grille No backbox LUH-TBAR**
LUH-VRG vandal-resistant grille No backbox LUH-TBAR**
Masonry Press-fit aluminum grille LUH-BOX (recessed) + LUH-TP trim plate N/A
LUH-VRG vandal-resistant grille LUH-BOX (recessed) + LUH-TP trim plate N/A
Surface-mount Press-fit aluminum grille LUH-BOX (surface) N/A
LUH-VRG vandal-resistant grille LUH-BOX (surface) N/A
*Tighten dog ears to hold trim ring in place. **T-bridge is recommended for acoustic tile ceilings.
Surface-mount: 10.5" sq. x 4"D stainless steel
backbox surface-mounts to wall. Horn with trim ring
clamps to box (ring covers unused screw holes).
Grille press-fits to horn assembly.
Surface-mount
LUH-BOX
to wall.
Clamp horn with
trim ring to box.
Lay-in Tile Ceiling or Drywall: horn with trim
ring clamps to ceiling (tile bridge is recommended
for acoustic tile). Grille press-fits to horn assem-
bly. No visible screws.
Masonry: 10.5" sq. x 4"D stainless steel backbox
mounts into masonry wall. LUH-TP trim plate screws to
backbox. Horn with trim ring clamps to trim plate (trim
ring covers screws). Grille press-fits to horn assembly.
Recess-mount
LUH-BOX to
masonry wall.
Screw LUH-TP trim
plate to backbox.
Clamp horn with
trim ring to plate.
Press-fit
grille to horn.
Press-fit grille to horn.
Clamp horn with trim
ring to ceiling.
LUH-VRG:
cast-aluminum
vandal-resistant
grille (9.6" dia.)
LUH-TP:
trim plate
(11.5" sq.)
LUH-BOX:
stainless steel
backbox (10.5"
sq. x 4"D)
Press-fit
grille to horn.
HRP832: spanner-
head screwdriver
for use with 8-32
spanner screws.
LUH-TBAR:
tile bridge