ERD-8 QUAM NICHOLS, ERD-8 Datasheet - Page 2

• Manufacturer Part Number: ERD-8
• Description: BACK BOX, BACK BOX, STEEL, WHITE
• Manufacturer: QUAM NICHOLS

Specifications of ERD-8

• Enclosure Type: Back Box
• Enclosure Material: Steel
• Body Color: White
• External Height - Imperial: 4.5"
• External Width - Imperial: 12.31"
• External Height: 4.5"
• External Width: 12.31"
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ERD8 Series Back Can (UL Listed UUMW) intended for use with QUAM SSB-x Tile Bridge
INTENDED USE:
All versions: Indoor environment, COMPLETE ASSEMBLY AS
SHOWN mounted parallel to floor plane in a 24” wide,
suspended ceiling tile grid; mount height 18’ or less above
floor plane.
Program material: Signal tones, voice and music.
“ Material and construction permits use
1. Preparation:
© 2011 Quam-Nichols Company Quam-Nichols reserves the right to make changes and/or improvements to its products at any time and without notice.
where ceiling plenum is part of the air
handling system”
UL Listed 1480
City of Chicago
- Cut 8-1/2” square hole in the tile using tile bridge as a
- Bend up 4x horseshoe tabs on tile bridge
- Position tile bridge on TOP of tile, legs like:
- Install speaker /baffle on opposite of ceiling tile and
Bend 8x locator tabs around tile in opening
template.
(Refer to specific tile bridge instructions for details)
fasten to tile bridge/tile assembly with 4x #8-32 screws
provided with speaker/baffle assembly.
8Ω
Approved
QUAM Model TBLU
Brown
Blue
Red
Orange
Green
White
Gray
Violet
BLACK ( Common )
0.32W @ 25V or 2.5W @ 70.7V
0.63W @ 25V or
I N S T A L L A T I O N
1.25W @ 25V only
2.5W @ 25V only
234 East Marquette Road
Chicago, IL 60637
Phone: (800) NEED NOW
5W @ 25V only
SNAP-IN TIE OFF STRAPS (2)
only 0.32W @ 70.7V
only 0.63W @ 70.7V
only 1.25W @ 70.7V
(800) 633 - 3669
HORSESHOE TAB (4)
BACKBOX
V
5W @ 70.7V
BRIDGE
Fax: (888) NEED NOW
I N S T R U C T I O N S
3. Installation in grid:
2. Termination:
- Chose entry point to back can and knock out either 1/2”
- Install UL Listed metallic enclosure entry fitting into
- Feed supply cable through whip to connector.
- If transformer on assembly is listed as TBLU, install per
- Insulate all unused taps from each other, the enclosure
- Orient back can over tile bridge, lining up slots with the
- With pliers, twist tabs 1/2 turn, securing back can to
- Tie-off using straps on back can as required
NOTE! AHJ/ local codes may require tie-down to grid.
Create a hole in the T-bar next to the end of the tile bridge
rails; securing with wire through the hole in the end of
the rail.
NOTE! AHJ/ local codes may require tie-off to structure.
(888) 633 - 3669
or 3/4” as required
back can knockout to receive plenum cable or plenum
Whip.
wiring diagram below. For other QUAM transformers,
go to
and electrical ground.
ERD8U Back Can Only: Snap in 2x tie-off tabs as shown
in illustration at left.
4x horseshoe tabs.
bridge assembly.
www.QuamSpeakers.com / Resources/ Wiring
ALL COMPONENTS
and ASSEMBLED
U.L. COMPLIANT
MUST BE USED
as shown to be
11-3.24
6 4 8 5