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Metasys ET Series Manual

Speakers and strobe speakers
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ET Series Speakers and Strobe Speakers
Introduction
General Description
Installation Procedures
Mounting
Wiring Installation Guidelines
Limitations
© 1995 Johnson Controls, Inc.
Code No. LIT-408195
Fire Initiating Devices and Notification Appliances Technical Manual 408
Notification Appliances Section
Technical Bulletin
Issue Date 1095
Page
3
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10
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24
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Summary of Contents for Metasys ET Series

  • Page 1 Fire Initiating Devices and Notification Appliances Technical Manual 408 Notification Appliances Section Technical Bulletin Issue Date 1095 ET Series Speakers and Strobe Speakers Introduction Page General Description Installation Procedures Mounting Wiring Installation Guidelines Limitations © 1995 Johnson Controls, Inc. Code No. LIT-408195...
  • Page 2 2 Notification Appliances—ET Series Speakers and Strobe Speakers...

  • Page 3: General Description

    These speakers and strobe speakers are manufactured by Wheelock for use with Johnson Controls systems. The ET series 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 VRMS or 70 VRMS audio systems.
  • Page 4 Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Consult the dealer or an experienced radio/TV technician for help. 4 Notification Appliances—ET Series Speakers and Strobe Speakers...
  • Page 5 To verify that the signaling device is operating at rated voltages, determine the voltage drop caused by the resistance of the Notification Appliance Circuit (NAC) wiring. Then, subtract this voltage from both the maximum and minimum power supply and battery voltages. Table 1: ET Series Speakers and Strobe Speakers Specifications Speaker Strobe Model...
  • Page 6 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. 6 Notification Appliances—ET Series Speakers and Strobe Speakers...
  • Page 7 R ated D eg ree s L ig ht Ou tp u t 1 0 0 5-2 5 -4 5 3 0 -45 L ight Wall lightdis.drw Figure 2: Light Distribution Comparison Notification Appliances—ET Series Speakers and Strobe Speakers 7...
  • Page 8 26.3 10.5 26.3 22.5 22.5 18.8 18.8 * The 15 cd models are listed at 15 cd and meet the Americans with Disabilities Act (ADA) requirement of 75 cd on the axis. 8 Notification Appliances—ET Series Speakers and Strobe Speakers...
  • Page 9 75 cd on the axis. Wall/Ceiling Mounting Table 5: Flashes per Second Across the Rated Voltage Range Models Volts Note: ADA guidelines presently specify a flash rate of one to three flashes per second. Notification Appliances—ET Series Speakers and Strobe Speakers 9...

  • Page 10: Installation Procedures

    Refer to Figures 3 through 10 when installing units. Refer to Table 1 for the correct Mounting mounting option to use for each model. Order plates and backboxes separately. Special plates and backboxes are indicated in the illustrations and described in Table 14. 10 Notification Appliances—ET Series Speakers and Strobe Speakers...
  • Page 11 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. Notification Appliances—ET Series Speakers and Strobe Speakers 11...
  • Page 12 CAUTION: Equipment damage hazard. Check the installation instructions of the manufacturers of other equipment used in the system for any guidelines or restrictions on wiring and/or locating signaling circuits and signaling devices. 12 Notification Appliances—ET Series Speakers and Strobe Speakers...
  • Page 13 (2 ) N o. 8-3 2 S crew s Figure 3: Flush Mounting (Option A) Table 6: Mounting Option A Conductor Limitations Extension Ring Depth AWG 18 AWG 16 AWG 14 AWG 12 1-1/2 In. 2-1/8 In. Notification Appliances—ET Series Speakers and Strobe Speakers 13...
  • Page 14 (2 ) N o. 8-3 2 S crews Figure 4: Flush Mounting (Option B) Table 7: Mounting Option B Conductor Limitations Extension Ring Depth AWG 18 AWG 16 AWG 14 AWG 12 1-1/2 Inches 2-1/8 Inches 14 Notification Appliances—ET Series Speakers and Strobe Speakers...
  • Page 15 (2 ) N o. 8 -3 2 S crew s Figure 5: Flush Mounting (Option C) Table 8: Mounting Option C Conductor Limitations Extension Ring Depth AWG 18 AWG 16 AWG 14 AWG 12 1-1/2 Inches 2-1/8 Inches Notification Appliances—ET Series Speakers and Strobe Speakers 15...
  • Page 16 4 inch octagon, or round boxes. For in-out wiring use a separate conduit entrance and exit, if necessary, to comply with NEC limits on maximum conductors in conduit. Table 9: Mounting Option D Conductor Limitations AWG 18 AWG 16 AWG 14 AWG 12 Maximum Conductors 16 Notification Appliances—ET Series Speakers and Strobe Speakers...
  • Page 17 (2 ) N o. 1 0 -32 S crew s (2) N o. 8 -32 S crews Figure 7: Semi-Flush Mounting (Option E) Table 10: Mounting Option E Conductor Limitations AWG 18 AWG 16 AWG 14 AWG 12 Maximum Conductors Notification Appliances—ET Series Speakers and Strobe Speakers 17...
  • Page 18 Use threaded conduit entrance when using a weather resistant backbox. Do not use the knockout entrance. Table 11: Mounting Option F Conductor Limitations AWG 18 AWG 16 AWG 14 AWG 12 Maximum Conductors 18 Notification Appliances—ET Series Speakers and Strobe Speakers...
  • Page 19 (2 ) N o. 1 0-32 S crews (2 ) N o. 8-3 2 Screw s Figure 9: Surface Mounting (Option G) Table 12: Mounting Option G Conductor Limitations AWG 18 AWG 16 AWG 14 AWG 12 Maximum Conductors Notification Appliances—ET Series Speakers and Strobe Speakers 19...
  • Page 20 4-1/8 in. x 4-1/8 in. x 2 in. Weather Resistant Backbox SFP-R 6 in. x 6 in. x 1/4 in. Semi-flush Plate AP-R 6 in. x 6 in. x 1/4 in. Adapter Plate 20 Notification Appliances—ET Series Speakers and Strobe Speakers...

  • Page 21: Wiring Installation Guidelines

    2 5 V 7 0 .7V eboard Figure 11: ET Series Strobe Speaker Circuit Board Layout Select the voltage and power requirements by connecting the jumper wire to the appropriate fast-on connector. Use Table 15 to determine the proper terminal for your voltage and wattage requirements.
  • Page 22 3 E T S eries S trobe S peaker T erm inal S trip Figure 12: ET Series Strobe Speaker Wiring Diagram Each input terminal accepts two leads for in-out wiring of No. 12 to 18 AWG wire.
  • Page 23 Peak Inrush The peak inrush current waveforms for the strobe of the ET series strobe speakers are shown below (Figure 14). 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.
  • Page 24 Johnson Controls recommends that the ET series audible and signal strobe be used in combination to minimize risk.
  • Page 25 Notes Notification Appliances—ET Series Speakers and Strobe Speakers 25...
  • Page 26 Notes 26 Notification Appliances—ET Series Speakers and Strobe Speakers...
  • Page 27 Notes Controls Group FAN 408 507 E. Michigan Street Fire Initiating Devices and Notification Appliances Technical Manual P.O. Box 423 Printed in U.S.A. Milwaukee, WI 53201 Notification Appliances—ET Series Speakers and Strobe Speakers 27...

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