Introduction The E series speakers and strobe speakers are UL Listed under Standard 1971 for General signaling devices for the hearing impaired and UL Standard 1480 for speaker appliances. Description These speakers and strobe speakers are manufactured by Wheelock for use with Johnson Controls systems.
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Johnson Controls is not responsible for devices that have been improperly installed, tested, or maintained by others. All models are UL Listed for indoor use with a temperature range of 32 to 120°F (0 to 49°C) with a maximum relative humidity of 85%.
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Equipment damage hazard. Although UL testing has verified these products function at 80% of their minimum rating and 110% of their maximum rating, Johnson Controls recommends that the voltage applied to these products be within their rated input voltage range. The application of improper voltage may result in degraded operation or damage to these products.
Light Distribution UL 1971 requires a polar light distribution pattern to enhance the likelihood of alerting hearing impaired individuals throughout an area. Figure 2 illustrates the way the standard measures light intensity, both horizontally and vertically. Tables 3 and 4 list the UL minimum requirements and the actual value of the light intensity of the strobe signal.
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Table 3: Horizontal Plane Light Distribution Horizontal 15 cd 15 cd* 30 cd 75 cd Angle Minimum Typical Typical Minimum Typical Minimum Typical Off the Axis Candela LSM* Candela Candela of the Strobe Required Required Required (in Degrees) UL 1971 UL 1971 UL 1971 15.0...
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Table 4: Vertical Plane Light Distribution Vertical 15 cd 15 cd* 30 cd 75 cd Angle Minimum Typical Typical Minimum Typical Minimum Typical Off the Axis of Candela Candela Candela the Strobe Required Required Required (in Degrees) UL 1971** UL 1971** UL 1971** 15.0 30.0...
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10 Notification Appliances—E Series Speakers and Strobe Speakers...
NFPA-72-National Fire Alarm Code and UL standards. Johnson Controls strongly recommends the intensity and flash rates of such strobes not exceed those levels established by applicable laws, standards, regulations, and guidelines. The number of installed strobes should not present a composite flash rate in the field of view which exceeds five hertz at the operating voltage of the strobes.
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CAUTION: Equipment Hazard. Do not use in potentially explosive atmospheres. Do not leave unused wires exposed. 12 Notification Appliances—E Series Speakers and Strobe Speakers...
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Johnson Controls also recommends that you use a 2-1/8 inch deep extension ring added to the 4 inch square backbox where possible to provide additional wiring room for easy installation.
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S tan dard 4 in ch S q uare x 1 -1 /2 in ch E xte nsio n Rin g D B B -R 4 in ch S q ua re x 2 -1 /8 in ch D ee p B ackb ox s tr_ A S trob e/E -7 0 S p eake r (2 ) N o.
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Mounting Option B S tandard 4 inch Sq uare x 1-1/2 inch E xtension R ing D B B-R 4 inch S qu are x 2-1/8 inch D eep B ackbox s tr_b S trob e/E -90 S peaker (2) N o. 8-32 Screws Figure 4: Flush Mounting (Option B) Table 7: Mounting Option B Conductor Limitations Extension Ring Depth...
Mounting Option C S B B -R S u rface B ackb ox w ith N o. 8 -3 2 an d N o. 6 -3 2 S crew s an d B ush ing str_h (2 ) N o. 8 -3 2 S crew s S tro be /E -7 0 S p ea ker Figure 5: Surface Mounting (Option C) This backbox is compatible with wiremold and conduit.
Use care and proper techniques when positioning the field wires in the backbox. Be sure Wiring to use the minimum required space and avoid undue stress on the product. This is Installation especially important for stiff, heavy gauge wires and wires with thick insulation or Guidelines sheathing.
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F rom P rec eding To N ext Stro be E n d- O f-L in e R esis tor Stro be F ire A lar m (E O LR ) C on tr ol P an el ( F AC P ) To N ext S pe ake r F rom P rec eding or E O L R...
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Peak Inrush The peak inrush current waveforms for the strobe of the E series strobe speakers are shown below (Figure 9). Circuit fuses, control devices for the NAC, and power supplies Current must be rated to handle this inrush. Current limitations will not prevent the startup unless the power supply current limiting is achieved by a fast reacting voltage fold-back circuit.
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Johnson Controls recommends that the sounder and signal strobe be used in combination to minimize risk. The signal strobe cannot operate from coded power supplies. Coded power supplies produce interrupted power.
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