P83984 E
Sheet 1 of 9
273 Branchport Avenue
Long
Branch,
NJ
07740
Thank you for using our products.
(800)
631-2148
(US)
INSTALLATION INSTRUCTIONS
(800) 397-5777 (CANADA)
SERIES NS4-MCW MULTI-CANDELA FOUR WIRE APPLIANCE
www.wheelockinc.com
(WALL MOUNT VERSION)
Use this product according to this instruction manual. Please keep this instruction manual for future reference.
GENERAL:
Wheelock’s Series NS4-MCW Multi-Candela Horn Strobe provides four selectable candela settings (15, 30, 75, 110). The NS4-
MCW allows for independent operation of the strobe circuit and the horn circuit. It is the ideal choice for retrofit applications as well
as new installations. The NS4-MCW Appliance is UL Listed under Standard 1971 for Signaling Devices for the Hearing Impaired
and UL Standard 464 for Audible Signal Appliances. The NS4-MCW is also ULC Listed under Standard CAN/ULC-S526-M87 for
Visual Signaling Appliances and Standard CAN/ULC-S525-99 for Audible Signaling Appliances for Fire Alarm Systems. It is listed
for
indoor use only
and equipped with an 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). This strobe model is Listed for
wall mounting only
.
The NS-MCW Appliance uses 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-MCW Appliance 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-MCW Horn Strobe can also be used with a Sync Module (SM), Dual Sync Module (DSM) or Power Supply (PS-12/24-8) to
provide synchronized strobe and synchronized Code 3 signal.
This strobe model is 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: THE NS HORN STROBE IS A "FIRE ALARM DEVICE - DO NOT PAINT."
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.
WARNING: READ THESE INSTRUCTIONS CAREFULLY. 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: Ratings Per UL and ULC
Regulated
Strobe
Settings Voltage
Candela
(VDC/VRMS)
Voltage Range Limit
Per UL 1971
(VDC/VRMS)
Voltage Range Per
CAN/ULC-S526-M87
(VDC/VRMS) (cd)
NS4-24MCW 24 16.0-33.0
20.0-33.0
15/30/75/110
Table 2: dBA Sound Output for 24VDC
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 33 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
NOTES:
1. The Strobe 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. Reverberant dBA is a minimum UL rating based on sound pressure measurements in a
reverberant test room. 3. This model is UL Listed for indoor use with a temperature range of +32oF to +120oF (0oC to +49oC) and
maximum humidity of 93% RH
±
2%.
NOTE: THE MAXIMUM WIRE IMPEDANCE BETWEEN STROBES SHALL NOT EXCEED 35 OHMS. THE MAXIMUM NUMBER
OR STROBES ON A SINGLE NOTIFICATION APPLIANCE CIRCUIT SHALL NOT EXCEED 47.
Copyright 2001 Wheelock, Inc. All rights reserved.
