Atlas IED VT-152UCN, VTF152UCN User Manual

FEATURES

• Patented Emergency Loudspeakers Available in 8-Ohm, 70.7V, and 25V Versions

• Units Meet or Exceed UL Standard 1480 for Fire Protective Signaling Systems when Used
with Compatible Control Equipment

• Durable, Die-Cast, Water-Sealed Housings Withstand Vandalism, Vermin, Moisture, Corrosion,
and Vibration

• Easy and Low Cost Installation Via Standard E.O. Boxes

• Choose from Surface or Recessed Models in Red or Neutral Gray Finish

• All Models Produce High Level Output, Optimum Intelligibility, and Effective Dispersion

• Ideal for Reliable Voice/Tone Signaling in Public Area Emergency Communications and
Heavy-Duty Industrial Applications

APPLICATIONS

Employ patented, UL Listed Voice/Tone™ audible signaling devices in protective warning and
intercom systems, for public area emergency communications, and as communication system
loudspeakers in multi-occupancy and extended space areas (i.e., high-rise residences, public
buildings, healthcare and educational facilities, shopping areas, athletic clubs, transportation
terminals). All units are suitable for stationary or mobile use, indoors or outdoors. High-power,
15-watt models are ideal for use in commercial and heavy-duty industrial applications.

When used with compatible control equipment, VT/VTF Series comply with UL Standard 1480
(Speakers for Fire Protective Signaling Systems) and California State Fire Marshal (Title 19).
Models with special modifications to meet New York City MEA (Calendar no. 57-74-SA) and UL
Canada are also available as standard product. Contact factory for proper model designation
and price.

GENERAL DESCRIPTION

Through proven performance, patented VT/VTF Series have earned worldwide acclaim for
service reliability. These cost-effective units offer compact size, functional flexibility, optimum
intelligibility, effective sound distribution, and high-level output. All models contain a high­efficiency compression driver with maximum acoustic conversion efficiency. (A quality which
reduces number of units needed to attain specified sound pressure levels and provides sub­stantial savings in amplification-power requirements and labor costs.) Die-cast, water-sealed
construction withstands vandalism, vermin, moisture, corrosion, and vibration during indoor
or outdoor use. Selection includes a basic 8-ohm version and 70.7 or 25-volt transformer
models with DC blocking capacitor (C) where noted. All models terminate via barrier strips.
VT Series models are surface-mount units; VTF Series are flush-mount units for recessed
installation. VT Series mounts standard 4" E.O. Boxes; VTF Series mount 4" or 4

11

⁄16

" SQ
backboxes and require model AR or MR adapter rings respectively (order separately)
Optional mounting accessories are offered including: indoor and outdoor enclosures, a
bi-directional housing, adapter plates and rings. Suffix model with color: Red (R) or Neutral
Gray (N). Ex: VT-157UCS.

Specifications subject to change without notice

© 2001 Atlas Sound LP Printed in U.S.A. 000501 SL6-1439

315

SIX

1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. / TELEPHONE: [phone] / FAX [phone]

UL LISTED

VOICE/TONE™ EMERGENCY LOUDSPEAKERS

VT/VTF Series

VT Series

VTF Series

Specifications subject to change without notice

© 2001 Atlas Sound LP Printed in U.S.A. 000501 SL6-1439

1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. / TELEPHONE: [phone] / FAX [phone]

SE

SI

TVTA

VTC

SFP

FP

AR

MR

VT / VTF SERIES ACCESSORIES (ORDER SEPARATELY)

ENCLOSURES

Model SE. Surface-mounting exterior backbox provides weatherproof installation for VT Series

loudspeakers. Unit is tapped for 1⁄2" conduit and includes a weatherproof gasket. Dimensions:
41⁄4" SQ x 2" D (108 x 51mm). Weight is .75 lbs (.35 kg). Housing is die-cast zinc finished in a
durable epoxy. Suffix model with color designation: Red (R) or Neutral Gray (N).

Model SI. Surface-mounting indoor backbox for SVT Series models mounts to any single or
double-gang backbox for concealed conduit applications. CRS unit includes

1

⁄2" conduit knock-

outs (three on each side; five on rear). Epoxy-finished surface. Dimensions: 4" SQ x 1

1

⁄2" D
(102 x 38mm). Weight is .7 lbs (.3 kg). Suffix model with color designation: Red (R) or Neutral
Gray (N).

Model TVT A. Twin housing for bi-directional mounting of two independently powered VT
Series models. Unit is recommended for wall or ceiling installation in corridors and walkways.
Each unit includes 2

3

⁄4" D (70mm) housing with base and adapter plate for parallel mounting to
any 4" SQ or single-gang electrical backbox for distortion-free, bi-directional projection. Weight
is 1.5 lbs (.7 kg). Suffix model with color designation: Red (R) or Neutral Gray (N).

BAFFLE COVER

Model VTC. Baffle cover converts Model TVTA (above) into a uni-directional unit for single

loudspeaker installations. Die-cast zinc construction is finished in baked epoxy and is identical
to the VT Series loudspeaker housing. Dimensions: 41⁄4" SQ x 17⁄8" D (108mm x 48mm). Weight
is .5 lbs (.2 kg). Suffix model with color designation: Red (R) or Neutral Gray (N).

ADAPTER PLATES

Model SFP. Semi-flush adapter plate mounts behind VT Series to cover any recessed 4" SQ x

11⁄2" D (102mm x 38mm) outlet box. CRS wall plate is stamped and painted. Dimensions: 6" SQ x

7

⁄32" D (152mm x 6mm). Weight is .5 lbs (.2 kg). Suffix model with color designation: Red (R) or

Neutral Gray (N).
Model FP. Flush adapter plate for VTF Series loudspeakers allows recessed mounting to stan-

dard 4

11

⁄16

" (119mm) backboxes. Unit is also suited to mount solid exterior or hollow interior wall
surfaces where a backbox is not required. Weight is .4 lbs (.18 kg). Unit is of CRS stamped
construction; not painted.

ADAPTER RINGS

Model AR. Adapter ring for recessed mounting of VTF Series units. Welded steel collar is

4" SQ x 2" D (103mm x 51mm) to provide necessary extension for any 4" SQ x 21⁄8" D
(102mm x 54mm) E.O. box. Weight is .6 lbs. (.27 kg). When assembled, the unit is 31⁄16"
deep and will fit in a standard 4" stud wall. Assembly includes four “S” clips. Finished in
neutral gray.

Model MR. Overlapping extension ring is equipped with clips for recessed mounting of VTF
Series models. Welded steel collar is 4

11

⁄16" SQ (I.D.) x 2" D (119mm x 51mm) to provide exten-
sion for any 411⁄16" SQ (O.D.) x 21⁄8" D (119mm x 54mm) backbox. When assembled, the unit is
31⁄16" deep and will fit in a standard 4" stud wall. Assembly includes four “S” clips. Weight is .7
lbs (.3 kg). Finished in neutral gray.

Specifications subject to change without notice

© 2001 Atlas Sound LP Printed in U.S.A. 000501 SL6-1439

317

SIX

1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. / TELEPHONE: [phone] / FAX [phone]

Specifications subject to change without notice

ARCHITECT AND ENGINEER SPECIFICATIONS

Dispersion

Freq. Angle

(Hz) Q Di (Degrees)

1000 1.83 2.61 360
2000 3.09 4.91 190
4000 4.54 6.57 125

VT/VTF Series. Audible signalling device shall be Atlas Sound Model
VT-____ (surface mount) or VTF-____ (flush-recessed mount). Con­tinuous power rating shall be ____ (15, 8, 4, 2, 1, 1/2, 1/4 watts) at
rated power. Frequency response shall be 600 to 5500 Hz (± 5dB).
Sensitivity shall be 96.9dB (at 1 watt, 1 meter). Sound pressure level
shall be ______ at a distance of _______ (see Sound Level
Reference Index). Dispersion shall be greater than 190° (-6dB point,
1 and 2 kHz octave bands). Model shall be water/moisture sealed and
constructed of die-cast zinc. Unit shall operate within the temperature

range of 150°F (66°C) to -30°F (-35°C). VT Series shall be installed
in_____ (a standard 4" SQ E.O. Box, Atlas Sound Model SFP semi­flush plate, Model SE surface exterior backbox, or Models TVTA and
VTC bi-directional housing and baffle cover). VTF Series shall be
installed in a standard ______(4" or 4-11/16" SQ) backbox using
Atlas Sound Model______ (AR, MR) overlapping extension ring.
Dimensions shall be: VT Series, 4-1/4" SQ. x 3-1/4" D (108 x 83mm);
VTF Series, 6" SQ. x 3-1/4" D (152 x 83mm). Finish shall be red or
neutral gray.

VT/VTF LOUDSPEAKER SPECIFICATIONS

POWER T APS FREQ. DIMENSIONS / CAP ACIT OR

MODEL TRANSFORMER (WATTS) RESP. DISPERSION SENSITIVITY WEIGHT (C)
VT(F)-158U * 15 (8 Ohms) 96.9dB VT Series: N.A.
VT(F)-157UC 70.7 V 15, 8, 4, 2 600 Hz - > 190° (1 watt, 1 meter)

4-1/4" SQ x 3-1/4" D (108 x 83mm)

5 mfd.

VT(F)-152UC 25 V 15, 8 ,4 , 2 5500 Hz (- 6dB pt., 3.2 Lbs. (1.5 kg) 5 mfd.
VT(F)-27UC 70.7 V 2,1 (± 5dB) 1 and 2 kHz UL: 90dB ** VTF Series: 1 mfd.
VT(F)-22UC 25V 2,1 octave (1 watt, 10 feet)

6" SQ x 3-1/4" D (152 x 83mm)

1 mfd.

VT(F)-17UC 70.7 1, 1/2, 1/4 bands) 3.2 Lbs. (1.5 kg) 1 mfd.

* Without transformer, 8-ohm impedance. ** 3dB increment rating.

SOUND LEVEL REFERENCE INDEX FOR VT AND VTF SERIES LOUDSPEAKERS

(BASED ON UL RATING OF 90dB AT 1 WATT, 10 FEET)

DISTANCE 15-W INPUT 8-W INPUT 4-W INPUT 2-W INPUT 1-W INPUT 1/2-W INPUT 1/4-W INPUT
10' (3.0 m) 102.0dB 99.0dB 96.0dB 93.0dB 90.0dB 87.0dB 84.0dB
20' (6.1 m) 96.0dB 93.0dB 90.0dB 87.0dB 84.0dB 81.0dB 78.0dB
30' (9.1 m) 92.5dB 89.5dB 86.5dB 83.5dB 80.5dB 77.5dB 74.5dB
40' (12.2 m) 90.0dB 87.0dB 84.0dB 81.0dB 78.0dB 75.0dB 72.0dB
50' (15.2 m) 87.7dB 84.7dB 81.7dB 78.7dB 75.7dB 72.7dB 69.7dB

VT / VTF SERIES FREQUENCY RESPONSE

VT / VTF SERIES Harmonic Distortion

( 1 watt @ 1 meter )

VT / VTF SERIES

Polars Are Normalized to Zero on Axis

Specifications subject to change without notice

© 2001 Atlas Sound LP Printed in U.S.A. 000501 SL6-1439

1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A. / TELEPHONE: [phone] / FAX [phone]

VTF SERIES

UL LISTED

VOICE/TONE™

EMERGENCY

LOUDSPEAKER

INSTALLATION

SEMI-FLUSH PLATE (SFP)

ADAPTER RING (AR)

BI-DIRECTIONAL HOUSING (TVTA)
/ BAFFLE COVER (VTC)

VT Series with Model SE for
weatherproof installations.

WEATHERPROOF MOUNTING

SEMI­RECESSED
MOUNTING

VT Series with Model SFP installed
to any recessed 4" SQ x 2-1/8" D backbox*.

RECESSED
MOUNTING
OPTION

VTF Series with
standard 4" SQ x
2-1/8" D backbox*
& Model Adapter
Ring (AR).

( * Backboxes by others.)

BI-DIRECTIONAL MOUNTING

Two independently powered VTunits installed into Model
TVTA. Mounts to any 4" SQ or single gang E.O. Box* for
ceiling or wall installations. (To build a uni-directional unit
for single loudspeaker installations, use a VT loudspeak­er on one end and a VTC baffle cover on the other.)

SURFACE OR CONCEALED

CONDUIT MOUNTING

VT Series with Model SI backbox.

Surface Interior

Backbox (SI)

* AStandard 2-1/8" D backbox assem­bled with overlapping extension ring
(AR) is 3-11/16" Deep.

Do not use these five knockouts for
connecting conduit (will interfere with
the loudspeaker).

Do not use these five knockouts for connect­ing conduit (will interfere with the loudspeaker)

* Astandard 2-1/8" D backbox assembled with overlapping extension ring (MR) is 3-11/16" D

.

SURFACE EXTERIOR BACKBOX (SE)

VT/VTF SERIES

UL WIRING REQUIREMENTS

NOTE: To conform with UL1480 requirements,

wires must be connected to appropriate termi­nals as shown in the wiring diagram
Do NOT use looped wire under terminals.
Break wire run to provide for supervision of
connection.

VT SERIES UL LISTED

VOICE/TONE™ EMERGENCY

LOUDSPEAKER INSTALLATION

( * Backboxes by others )

VT/VTF-17U

VT/VTF-17UC

70V Line Xfmr

VT/VTF-27U

VT/VTF-27UC

70V Line Xfmr

VT/VTF-22U

VT/VTF-22UC

25V Line Xfmr

VT/VTF-157U

VT/VTF-157UC 70V

70 V Line Xfmr

VT/VTF-152U

VT/VTF-152UC

25V Line Xfmr

VT

MODELS

WITH 3, 4,

OR 5

POSITION

TERMINAL

STRIP

Mounting
Screw

VT/VTF

MODELS

WITH 2

POSITION

TERMINAL

STRIP

.

.060

dB

Term Color Watt Rating

*

1 Wht Com -
2 Red 2 90
3 Gry 4 93
4 Brn 8 96
5 Grn 15 99

dB

Term Color Watt Rating

*

1 Wht Com -
2 Red 2 90
3 Gry 4 93
4 Brn 8 96
5 Grn 15 99

dB

Term Color Watt Rating

*

1 Red Com -
2 Blu 1 90
3 Wht 2 93

dB

Term Color Watt Rating

*

1 Red Com -
2 Blu 1 87
3 Wht 2 90

dB

Term Color Watt Rating

*

1 Red Com -
2 Blu 1/4 84
3 Yel 1/2 87
4 Wht 1 90

VT/VTF-158U

8 ohms

dB

Term Color Watt Rating

*

1 Blk Com -
2 Yel 15 96

* UL 3dB Increment Rating

VTF Series with
Model FP
mounted to solid
exterior
(or hollow interi­or) wall where
backbox is not
required.

FP Mounting Plate

Dimensions

RECESSED MOUNTING OPTIONS

FLUSH MOUNTING PLATE (FP) / ADAPTER RING (MR)

MR

Ext. Ring

Dimensions

VTF Series with standard 4-11/16" SQ x 2-1/8" D backbox* and
overlapping extension ring (MR). Flush plate (FP) required for loud­speaker alignment.

3-11/16"
Together

3-11/16"
Together