P83601 F
Sheet 1 of 11
273 Branchport Avenue
Long
Branch,
NJ
07740
Thank you for using our products.
(800) 631-2148
www.wheelockinc.com
INSTALLATION INSTRUCTIONS
SERIES NS4 FOUR WIRE APPLIANCES
(WALL MOUNT VERSIONS)
Use this product according to this instruction manual. Please keep this instruction manual for future reference.
GENERAL:
Wheelock’s Series NS4 Horn Strobe Appliances are designed to provide independent operation for the horn appliance, when the
strobe circuit is powered. They are the ideal choice for retrofit applications as well as new installations. The NS4 Appliances are UL
Listed under Standard 1971 for Signaling Devices for the Hearing Impaired and UL Standard 464 for Audible Signal Appliances. The
1575W candela wall mounted strobes are listed at 15 candela under UL Standard 1971 and meet 75 candela intensity on axis with low
current draw. They are listed for
indoor use only
and equipped with a NS Mounting Plate (NSMP) that can be mounted to single-
gang, double-gang, 4” backbox, 100mm European backbox or SHBB surface backbox (See Mounting Options). These appliances are
Listed for
wall mounting only
. The NS4 Appliances use a Xenon flashtube with solid state circuitry enclosed in a rugged Lexan
lens to provide maximum visibility and reliability for effective visible signaling.
The horn portion of the NS4 Appliances can be field set to provide either Continuous Horn or Code 3 Horn. The sound output can be
field set for High (HI) or Low (LO) dBA.
The NS4 Horn Strobe can also be used with a Sync Module (SM) or Dual Sync Module (DSM) to provide synchronized strobe and
synchronized Code 3 signal.
These strobe models are designed for use with either filtered DC (VDC) or unfiltered Full-Wave-Rectified (VRMS) input voltage.
All inputs are polarized for compatibility with standard reverse polarity supervision of circuit wiring by a FACP.
NOTE:
All
CAUTIONS
and
WARNINGS
are identified by the symbol
. All warnings are printed in bold capital letters
WARNING: PLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE USING THIS PRODUCT. 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 Ratings
Models Nominal Rated Strobe
Voltage
Voltage
Range
Candela
(VDC/VRMS)
(VDC/VRMS)
(cd)
NS4-2415W 24 20.0-31.0 15
NS4-241575W* 24 20.0-31.0
15
NS4-2430W 24 20.0-31.0 30
NS4-2475W 24 20.0-31.0 75
NS4-24110W 24 20.0-31.0 110
NS4-1215W 12 10.5-15.6 15
NS4-121575W* 12 10.5-15.6
15
* 1575W models are UL Listed for 15cd and meet 75cd on axis.
Copyright 1997, 1998 Wheelock, Inc. All rights reserved.
