P82055 S
Sheet 3 of 4
MOUNTING PROCEDURES:
CAUTION: If sheated multiconductor cable or 3/4" conduit fittings are used, check that installed product has sufficient
clearance and wiring room prior to installing backboxes and conduit.
1. For weather resistant installation, use outdoor Mounting Option.
2. Do not exceed +130% of speaker rated voltage per UL 1480. Improper input voltage can damage speaker.
CAUTION: Always operate audio amplifiers and speakers within their specified ratings. Excessive input may distort sound
quality and may damage audio equipment. If distortion is heard, check for clipping of the audio appliance with an oscilloscope and
reduce the amplifier input level or gain level to eliminate any clipping.
3 Each doubling of rated Watts increases sound output by 3 dBA. 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.
4 All units are compatible with line supervision. Speakers block DC supervision voltage of either polarity.
5 Frequency range of speakers is 400-4000Hz.
6 INPUT TERMINALS: Each input terminal accepts (2) leads for in-out wiring of 12-22 AWG wire. Break wire run
to provide
electrical supervision. Do not loop wire around screw. Refer to wiring diagram.
7 HARDWARE: All mounting hardware is supplied with the unit. See Mounting Options.
8 Select largest backbox shown in Mounting Options where possible, to provide additional wiring room for easy installation.
9 Conduit entrance to backboxes should be selected to insure sufficient wiring clearance for installed equipment. When
extension rings are required, conduit should enter through backbox, not extension ring. Use Steel City #53151 1-1/2" deep or
#53171 2-1/8" deep extension rings or equal with same area cut out in back.
10 When using a weather-proof backbox, use threaded conduit entrance only. Do not use knockout entrance.
CAUTION: Always operate audio amplifiers and speakers within their specified ratings. Excessive input may distort sound
quality and may damage audio equipment. Do not exceed +130% of speaker input voltage per UL 1480. Improper input voltage
can damage speaker. If distortion is heard, check for clipping of the audio appliance with an oscilloscope and reduce the amplifier
input level or gain level to eliminate any clipping.
If this appliance is required to produce a distinctive three-pulse Temporal Pattern Fire Alarm Evacuation Signal (for total
evacuation) in accordance with NFPA 72, the appliance must be used with a Fire Alarm Control unit that can generate the temporal
pattern signal. Refer to manufacturer’s installation manual for details.
CAUTION: Check the installation instructions of the manufacturers of other equipment used in the system for any guidelines or
restrictions on wiring and/or locating Notification Appliance Circuits (NAC) and notification appliances. Some system
communication circuits and/or audio circuits, for example, may require special precautions to assure electrical noise immunity (e.g.
audio crosstalk).
ANY MATERIAL EXTRAPOLATED FROM THIS DOCUMENT OR FROM WHEELOCK MANUALS OR OTHER
DOCUMENTS DESCRIBING THE PRODUCT FOR USE IN PROMOTIONAL OR ADVERTISING CLAIMS, OR FOR
ANY OTHER USE, INCLUDING DESCRIPTION OF THE PRODUCT'S APPLICATION, OPERATION,
INSTALLATION AND TESTING IS USED AT THE SOLE RISK OF THE USER AND WHEELOCK WILL NOT HAVE
ANY LIABILITY FOR SUCH USE.
IMPORTANT: READ SEPARATE "GENERAL INFORMATION" SHEET FOR INFORMATION ON THE
PLACEMENT, LIMITATIONS, INSTALLATION, FINAL CHECKOUT, AND PERIODIC TESTING OF
NOTIFICATION APPLIANCES.
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General