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Wheelock ET Series User Manual

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P82483 E
Sheet 1 of 7
273 Branchport Avenue
Long Branch, N.J. 07740
(800) 631-2148 Thank you for using our products.
www.wheelockinc.com
INSTALLATION INSTRUCTIONS
SERIES ET SPEAKERS AND STROBE SPEAKERS
Use this product according to this instruction manual. Please keep this instruction manual for future reference.
GENERAL:
Wheelock's Series ET Speakers and Strobe Speakers are UL Listed under Standard 1971 for Signaling Devices for the Hearing Impaired
and UL Standard 1480 for Speaker Appliances. The LSM strobes are listed at 15 candela under UL Standard 1971 and meet 75 candela
intensity on axis with low current draw. The Series ET is designed for multiple power requirements with high dBA output at each power
tap. All ET models offer a choice of field selectable taps, 1/8 to 8 Watts for either 25.0VRMS or 70.0VRMS audio systems. The Series
ET design incorporates a high efficiency speaker for maximum output at minimum power across a frequency range of 400 to 4000Hz and
features a sealed back construction for extra protection and improved audibility. All inputs are compatible with standard reverse
polarity supervision of circuit wiring by a Fire Alarm Control Panel (FACP). Series ET Strobe Speakers incorporate a Xenon flashtube
with solid state circuitry enclosed in a rugged Lexan lens to provide maximum reliability for effective visible signaling. The Strobe
Speakers are available with a choice of four UL Listed strobe options: Series LS, LSM, MS and IS. All models are Listed for indoor use;
LS/MS/IS models are Listed for ceiling or wall mount and LSM models are Listed for wall mount only, with the backboxes specified in
these instructions (see Mounting Options).
NOTE: All CAUTIONS and WARNINGS are identified by the symbol
. All warnings are printed in bold capital letters.
WARNING: READ THESE INSTRUCTIONS CAREFULLY. FAILURE TO COMPLY WITH ANY OF THE FOLLOWING
INSTRUCTIONS, CAUTIONS AND WARNINGS COULD RESULT IN IMPROPER APPLICATION, INSTALLATION AND/OR
OPERATION OF THESE PRODUCTS IN AN EMERGENCY SITUATION, WHICH COULD RESULT IN PROPERTY DAMAGE AND
SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.
SPECIFICATIONS:
Table 1: UL Listed Models and Ratings
Model Speaker dBA at 10 Feet Strobe Voltage Strobe Mounting
(Rated Watts) (VDC) Candela Options
1/8 1/4 1/2 1 2 4 8 Min Nom Max (cd)
ET-1010 78 81 84 87 90 93 96 ---- ---- ---- ---- E,F,G,H
ET-1070 78 81 84 87 90 93 96 ---- ---- ---- ---- A,D
ET-1080 78 81 84 87 90 93 96 ---- ---- ---- ---- C,D
ET-1090 78 81 84 87 90 93 96 ---- ---- ---- ---- B
ET-1070-LS-24 78 81 84 87 90 93 96 20 24 31 15 A,D
ET-1070-LSM-24 78 81 84 87 90 93 96 20 24 31 15* A,D
ET-1070-MS-24 78 81 84 87 90 93 96 20 24 31 30 A,D
ET-1070-IS-24 78 81 84 87 90 93 96 20 24 31 75 A,D
ET-1080-LS-24 78 81 84 87 90 93 96 20 24 31 15 C,D
ET-1080-LSM-24 78 81 84 87 90 93 96 20 24 31 15* C,D
ET-1080-MS-24 78 81 84 87 90 93 96 20 24 31 30 C,D
ET-1080-IS-24 78 81 84 87 90 93 96 20 24 31 75 C,D
ET-1090-LS-24 78 81 84 87 90 93 96 20 24 31 15 B
ET-1090-MS-24 78 81 84 87 90 93 96 20 24 31 30 B
ET-1090-IS-24 78 81 84 87 90 93 96 20 24 31 75 B
*15cd models are UL Listed at 15cd and meet 75cd on axis.
Notes: 1. dBA is rated per UL Standard 1480 for Speaker Appliances. 2. Four (4) watt rating is only available with 70.0VRMS input.
Copyright 1993-1997 Wheelock, Inc. All rights reserved.
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Wheelock ET Series Specifications

General IconGeneral
Operating Temperature32°F to 120°F (0°C to 49°C)
Sound OutputUp to 99 dBA at 10 feet (3 m)
Operating Voltage24 VDC
Maximum Humidity95% non-condensing
Candela Options15, 30, 75, 110, 177
MountingSurface mount
ColorWhite
CompatibilityCompatible with fire alarm control panels
Voltage Range16-33 VDC/VAC
Flash Rate1 Hz (60 flashes per minute)
Housing MaterialHigh impact plastic

Summary

Installation Instructions

Product Overview and Features

Details Series ET Speakers/Strobes, UL listing, design, and features for hearing impaired and audio systems.

Model and Rating Specifications

Lists UL Listed Models and Ratings, including dBA, voltage, candela, and mounting options for Series ET.

Strobe Current Requirements

Current Ratings by Voltage and Model

Lists average, peak, and inrush current values for LS, MS, LSM, IS strobes across different DC and VFWR voltages.

Light Distribution Performance

Horizontal Plane Light Output

Presents candela values in the horizontal plane at various angles for 15cd, 30cd, and 75cd strobe models.

Vertical Plane Light Output

Presents candela values in the vertical plane at various angles for 15cd, 30cd, and 75cd strobe models.

Wiring and Grounding Guidelines

Speaker and Wattage Connections

Explains terminal connections for voltage and wattage selection based on Table 5 for Series ET products.

Electrical Grounding Procedures

Details grounding requirements for specific models using grounded backboxes and hardware.

Mounting Options and Hardware

Flush, Surface, and Semi-Flush Mounting

Illustrates flush, surface, and semi-flush mounting options with backbox, ring, and wire capacity details.

Weather Resistant and Conduit Mounting

Covers weather-resistant and concealed conduit mounting options with associated backbox and wiring considerations.

Mounting Procedures and Safety

Installation Best Practices

Provides guidance on backbox clearance, conduit entry, field wire management, and avoiding stress on the product.

Product Specific Mounting Notes

Notes on indoor/outdoor use for ET-1010, weather resistance, and wattage selection for sound output.

Strobe Installation Safety Warnings

Warns about potential photo-sensitive responses from multiple strobes and recommended flash rate compliance.

Product Warranty and Liability

Warranty Coverage and Exclusions

Specifies the three-year warranty, proper usage requirements, and exclusions for Wheelock products.

Limitation of Liability Terms

Outlines limitations on liability for claims, including incidental or consequential damages, and price limitations.

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