Copyright 2005 Wheelock, Inc. All rights reserved.
P84234H
Sheet 1 of 4
273 Branchport Avenue
Long
Branch,
NJ
07740
Thank you for using our products.
(800) 631-2148 (USA)
(800)
397-5777
(CANADA)
INSTALLATION INSTRUCTIONS
www.wheelockinc.com
SERIES NS TWO 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 NS Horn Strobe Appliances require only 2-wires for operation of the horn and strobe appliance and provide a selectable continuous or Code 3 Horn
tone and continuous strobe when connected directly to a fire alarm control panel (FACP). They can also provide a synchronized Code 3 Horn tone and synchronized
strobe when used in conjunction with a Sync Module (SM), Dual Sync Module (DSM) or Wheelock power supplies. They are the ideal choice for applications where
the audible silence feature is required. The NS Appliances are UL Listed under Standard 1971 for Signaling Devices for the Hearing Impaired and UL Standard 464 for
Audible Signal Appliances. The 24V NS is also ULC Listed under Standard CAN/ULC-S526-02 for Visual Signaling Appliances and Standard CAN/ULC-S525-99 for
Audible Signaling Appliances for Fire Alarm Systems. 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 nounting plate (NSMP) that can be mounted to single-gang,
double-gang, 4” backbox, 100mm European backbox or SHBB surface backbox (See wiring and mounting information). These strobe models are Listed for
wall
mounting only
. The NS appliances uses a xenon flashtube with solid state circuitry enclosed in a polycarbonate lens to provide maximum visibility and reliability for
effective visible signaling.
Series NS Appliances can be field set for high (HI) or low (LO) dBA sound output.
These strobe models are designed for use with either filtered DC (VDC) or unfiltered full-wave-rectified (FWR) input voltage. All inputs are polarized for compatibility
with standard reverse polarity supervision of circuit wiring by a FACP.
NOTE:
The Code 3 temporal pattern (1/2 second on, 1/2 second off, 1/2 second on, 1/2 second off, 1/2 second on, 1-1/2 off and repeat) is specified by ANSI and
NFPA 72 for standard emergency evacuation signaling.
The Code 3 Horn should be used only for fire evacuation signaling and not for any other purpose.
NOTE
: All Canadian Installations should be in accordance with the Canadian Standard for the Installation of Fire Alarm Systems - CAN/ULC-S524-01 and Canadian
Electrical Code, Part 1. Final acceptance is subject to authorities having jurisdiction (AHJ).
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 and ULC Ratings
Strobe Candela
(cd)
Models
Regulated
Voltage
(VDC/VRMS)
Voltage Range Limit Per
UL 464 and UL 1971
(VDC/VRMS)
Voltage Range Per CAN/ULC-S526-02
And CAN/ULC-S525-99
(VDC/VRMS)
UL ULC
NS-241575W* 24
16.0-33.0
20.0-31.0
15 75
NS-121575W* 12
8.0-17.5 ------
15
--
* 1575W models are UL Listed for 15cd and meet 75cd on axis. NS-121575 is not ULC approved.
Table 2: dBA Sound Output for 24VDC Per UL and ULC
Description
Volume
Reverberant Per UL 464
Anechoic Per CAN/ULC-S525-99
16.0VDC
24.0VDC
33.0VDC
20.0VDC
24.0VDC
31.0VDC
Low
77
81
83
87
89
91
Continuous Horn
High
83
87
90
90
92
94
Low
72
76
79
87
89
91
Code 3 Horn
High
79
82
86
90
92
94
ULC Directional Characteristics: Rated output 92dBA (Unit set on high volume and 24VDC)
-3dBA: 60 degrees left, 40 degrees right -6dBA: 70 degrees left, 70 degrees right
Table 2A: dBA Sound Output for 12VDC Per UL
Description
Volume
Reverberant Per UL 464
8.0VDC
12.0VDC
17.5VDC
Low
72
76 80
Continuous Horn
High
78
83
86
Low
67
72 74
Code 3 Horn
High
75
79
82
1.
Strobes will produce 1 flash per second over the "Regulated Voltage" range.
2.
Anechoic dBA is measured on axis in a non-reflective (free field) test room using fast meter response. For peak dBA (measured with peak meter response), add
5dBA to anechoic values as shown in Table 2 &2A. Reverberant dBA is a minimum UL rating based on sound pressure measurements in a reverberant test room.
3.
All models are UL Listed for indoor use with a temperature range of +32
°
F to +120
°
F (0
°
C to +49
°
C) and maximum humidity of 93%
±
2% RH. The effect of
shipping and storage temperatures shall not adversely affect the performance of the appliance when it is stored in the original cartons and not subjected to misuse or
abuse.
