wheelock ET70WP-2475W INSTALLATION INSTRUCTIONS

273 Branchport Avenue Thank you for using our products.
Long Branch, NJ 07740
[phone]

www.cooperwheelock.com INSTALLATION INSTRUCTIONS

SERIES ET70WP-2475W LOW PROFILE WEATHERPROOF SPEAKER STROBE APPLIANCE

WITH AMBER, BLUE, RED AND GREEN LENS

Use this product according to this instruction manual. Please keep this instruction manual for future reference.

GENERAL:

Series ET70WP-2475W Low Profile Speaker Strobe are for indoor/outdoor use. For outdoor applications the ET70WP-2475W must be wall
mounted to a Weatherproof Backbox (IOB). They are designed for multiple power requirements with high dBA output at each power tap.
This model offers a choice of field selectable taps, 1/8W to 8W for either 25.0VRMS or 70.0VRMS audio systems. The Low Profile design
incorporates a high efficiency speaker for maximum output at minimum power across a frequency range of 400Hz to 4000Hz, and features a
sealed back construction for extra protection and improved audibility. The Low Profile Speaker Strobes can provide a non-synchronized
strobe appliance when connected directly to a Fire Alarm Control Panel (FACP), or provide a synchronized strobe appliance when used in
conjunction with a Sync Module (SM), Dual Sync Module (DSM), or Wheelock’s Power Supplies. The Strobes use a Xenon flashtube with
solid state circuitry enclosed in a rugged Lexan® lens to provide maximum visibility and reliability for effective visible signaling.

NOTE: “Lexan” is a registered trademark of General Electric Company.
NOTE: All CAUTIONS and WARNINGS are identified by the symbol

. All warnings are printed in bold capital letters.

WARNING: THE ET70WP-2475W APPLIANCE IS A "FIRE ALARM DEVICE - DO NOT PAINT."

WARNING: PLEASE 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: Models and Ratings

Speaker Strobe

Model Color

Lens

Voltage

(VRMS)

Reverberant dBA at 10 Feet

(Rated Watts)

Regulated

Voltage

(VDC/VRMS)

Regulated
Voltage Range
(VDC/VRMS)

1/8 1/4 1/2 1 2 4 8

Strobe

Candela

(cd)

25°C -35°C
ET70WPA-2475W Amber 25/70 77 80 83 86 88 91 93 24 16-33.0 135 56
ET70WPB-2475W Blue 25/70 77 80 83 86 88 91 93 24 16-33.0 54 22
ET70WPG-2475W Green 25/70 77 80 83 86 88 91 93 24 16-33.0 81 33
ET70WPR-2475W Red 25/70 77 80 83 86 88 91 93 24 16-33.0 36 15

NOTES:

1. Strobes will produce 1 flash per second over the "Regulated Voltage" range.

2. All models are for indoor and outdoor use with a temperature range of -31°F to +150°F (-35°C to +66°C) and maximum humidity of
95% RH.

NOTE: THE MAXIMUM WIRE IMPEDENCE BETWEEN STROBES SHALL NOT EXCEED 35 OHMS. THE MAXIMUM
NUMBER OF STROBES ON A SINGLE NOTIFICATION APPLIANCE CIRCUIT SHALL NOT EXCEED 47.

WARNING: THESE APPLIANCES WERE TESTED TO THE OPERATING VOLTAGE LIMITS OF 16-33 VOLTS USING
FILTERED (DC) OR UNFILTERED FULL-WAVE-RECTIFIED (FWR). DO NOT APPLY 80% AND 110% OF THESE VOLTAGE
VALUES FOR SYSTEM OPERATION.

WARNING: CHECK THE MINIMUM AND MAXIMUM OUTPUT OF THE POWER SUPPLY AND STANDBY BATTERY
AND SUBTRACT THE VOLTAGE DROP FROM THE CIRCUIT WIRING RESISTANCE TO DETERMINE THE APPLIED
VOLTAGE TO THE STROBES.

Copyright 2007 Cooper Wheelock, Inc. All rights reserved.

P84646 D

Sheet 1 of 5

Table 2: Strobe Current Ratings (AMPS)

Voltage Maximum RMS Current
DC 16-33VDC 0.138
FWR 16-33VRMS 0.222

WARNING: MAKE SURE THAT THE TOTAL RMS CURRENT REQUIRED BY ALL APPLIANCES THAT ARE
CONNECTED TO THE SYSTEM’S PRIMARY AND SECONDARY POWER SOURCES, NAC CIRCUITS, SM, DSM SYNC
MODULES OR COOPER WHEELOCKS POWER SUPPLIES DO NOT EXCEED THE POWER SOURCES’ RATED CAPACITY
OR THE CURRENT RATINGS OF ANY FUSES ON THE CIRCUITS TO WHICH THESE APPLIANCES ARE WIRED.
OVERLOADING POWER SOURCES OR EXCEEDING FUSE RATINGS COULD RESULT IN LOSS OF POWER AND FAILURE
TO ALERT OCCUPANTS DURING AN EMERGENCY, WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS
INJURY OR DEATH TO YOU AND/OR OTHERS.

When calculating the total currents: Use Table 2 to determine the highest value of “RMS Current” for an individual strobe (across the
expected operating voltage range of the strobe), then multiply these values by the total number of strobes; be sure to add the currents for any
other appliances, including audible signaling appliances, powered by the same source and include any required safety factors.

If the peak current exceeds the power supplies’ peak capacity, the output voltage provided by the power supplies may drop below the listed
voltage range of the appliances connected to the supply and the voltage may not recover in some types of power supplies. For example, an
auxiliary power supply that lacks filtering at its output stage (either via lack of capacitance and/or lack of battery backup across the output)
may exhibit this characteristic.

CAUTION: Strobes are not designed to be used on coded systems in which the applied voltage is cycled on and off.

LIGHT DISTRIBUTION:

A7

A4

A2

A1

A6

A5

A3

Model Rated

Candela

A1 A2 A3 A4 A5 A6/A7
ET70WPA-2475W 56 135 12 12 11 11 6
ET70WPB-2475W 22 54 4.8 4.8 4.5 4.5 1.8
ET70WPG-2475W 33 81 7.2 7.2 6.7 6.7 3.6
ET70WPR-2475W 15 36 3.2 3.2 3.0 3.0 1.6

WIRING INFORMATION:

1. Field selectable input terminals are provided on each unit. The following wattage selections are available: 1/8W, 1/4W, 1/2W, 1W, 2W,
4W, and 8W. Frequency range of speakers is 400-4000Hz.

2. A 10µF blocking capacitor for DC supervision of audio lines by the FACP is factory wired in series with the speaker input.

Table 3: Candela at Various Angles

FROM PRECEDING SPEAKER

OR FIRE ALARM

CONTROL PANEL (FACP)

FROM PRECEDING STROBE

APPLIANCE OR SYNC MODULE

Figure 1:

+ STROBE - COM+

TO NEXT SPEAKER
OR END OR LINE RESISTOR
(EOLR)

TO NEXT APPLIANCE
OR EOLR

Figure 2:

1. The Low Profile Series ET70WP-2475W Speaker
Strobe model has in-out wiring terminals that accept
two #12 to #18 American Wire Gauge (AWG) wires at
each screw terminal. Strip leads 3/8 inches and connect
to screw terminals.

2. Break all in-out wire runs on supervised circuits to
assure integrity of circuit supervision as shown in Figure

2. The polarity shown in the wiring diagrams is for
operation of the appliances.

* Refer to Sync Module instruction sheets SM (P83123), DSM (P83177)

or Wheelock’s Power Supplies for additional information.

WARNING: THE SPEAKER STROBE APPLIANCE MUST BE FIELD SET TO THE DESIRED dBA SOUND OUTPUT
LEVEL BEFORE IT IS INSTALLED. THIS IS DONE BY PROPERLY INSERTING JUMPER PLUGS IN ACCORDANCE WITH
THESE INSTRUCTIONS. INCORRECT SETTINGS WILL RESULT IN IMPROPER PERFORMANCE, WHICH COULD
RESULT IN PROPERTY DAMAGE AND ERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.

Figure 3: Jumper plug is used to select tap settings which = dBA loudness. Figure 4: Tap Settings (Factory setting is 70V @ 1/2W (H))

P84646 D

Sheet 2 of 5