Wheelock NS-24MCW-FR, NS-24MCWFW, NH-12-R, NH-24-R, NH-12-W Product Information Manual

FIRE ALARM SYSTEMS

Description

The Series NS Horn Strobe Appliances will satisfy virtually
all requirements for indoor, wall mount applications.

The Series NH Horn and the horn portion of the Series NS
includes a selectable continuous horn tone or temporal
pattern (Code 3) with selectable dBA settings of 90 or 95
dBA.

Helping People Take Action

SERIES NS

SINGLE & MULTI-CANDELA

HORN STROBE APPLIANCES

SERIES NH HORNS

Series NH

Series NS

INC.

SM

Strobe options include Wheelock’s p atented Multi-Candela
strobe with field selectable candela settings of: 15, 30, 75
or 110cd.

These versatile Horn Strobe Appliances may be
synchronized when used in conjunction with the Wheelock
SM or DSM Sync Module(s). Additionally, the audible
may be silenced while maintaining strobe activation.

All models of the Series NS are designed for maximum
performance, reliability and cost effectiveness while
meeting or exceeding the latest requirements of
CAN/ULC-S526-02 for Visual Signaling Appliances and
CAN/ULC-S525-99 for Audible Signaling Appliances.

Wheelock’s patented 2-Wire Series NS Horn S trobes and
Series NH Horns offer more features with less current draw .

Your Choice

• NS models are available in 2-Wire, 24 VDC

• NS models are available with Wheelock’s patented
Multi-Candela Strobe that offers field select able
candela settings of: 15, 30, 75 or 1 10 cd

Multi-Candela Indicator

(bottom of Strobe Lens)

Features

• Approvals include: CAN/ULC-S526-02 for Visual
Signaling Appliances and CAN/ULC-S525-99 for
Audible Signaling Appliances

• ADA/NFP A/ANSI compliant

• Meets OSHA 29 Part 1910.165

• Field Selectable Candela Settings: 15, 30, 75 or
1 10 cd. (Multi-Candela models)

• Selectable Continuous Horn or T emporal (Code 3)

• 2 Selectable dBA settings of 90 and 95 dBA in
both tones

• Patented Universal Mounting Plate

• Filtered DC or unfiltered VRMS input voltage

• Wall Mount

• Synchronize with Wheelock SM or DSM Sync
Module(s)

• Fast installation with IN/OUT screw terminals
using #12 to #18 A WG wires

• Backward compatible with other Wheelock

Appliances

Copyright 2005 Wheelock Inc. All rights reserved.

2

NOTE: All CAUTIONS and WARNINGS are identified by the symbol . All warnings are printed in bold capital letters.

W ARNING: PLEASE READ THESE SPECIFICATIONS AND ASSOCIA TED INST ALLATION INSTRUCTIONS CAREFULLY BEFORE USING, SPECIFYING

OR APPLYING THIS PRODUCT. FAILURE TO COMPLY WITH ANY OF THESE INSTRUCTIONS, CAUTIONS OR WARNINGS COULD RESULT IN IMPROPER
APPLICATION, INST ALLATION AND/OR OPERATION OF THESE PRODUCTS IN AN EMERGENCY SITUA TION, WHICH COULD RESUL T IN PROPERTY
DAMAGE, AND SERIOUS INJURY OR DEA TH TO YOU AND/OR OTHERS.

WARNING: FOR ULC VERSIONS THESE APPLIANCES WERE TESTED TO THE OPERA TING VOL T AGE OF 20.0 - 31.0 VOL TS FOR 24V MODELS

AND 10.5 - 15.6 VDC FOR 12 V MODELS USING FILTERED (DC) OR UNFILTERED FULL-WA VE RECTIFIED (FWR). APPL Y 80% AND 1 10% OF
THESE VOL TAGE V ALUES FOR SYSTEM OPERA TIONS.

General Notes:

• Strobes are designed to flash at 1 flash per second minimum over their Voltage Range.

• All candela ratings represent minimum effective Strobe intensity.

• Series NS Strobe products are listed for indoor use with a temperature range of 0°C to 49°C (32°F to 120°F)
and maximum humidity of 93% (± 2%).

• Series NH horns are listed for audible signal appliances (Indoor use only).

• 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.

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WARNING: CONT ACT WHEELOCK FOR THE CURRENT INST ALLA TION INSTRUCTIONS (P83983) SERIES NS-24MCW , (P84030) SERIES

NS 24 VDC SINGLE CANDELA MODELS, (P83984) SERIES NH (P83600) AND “GENERAL INFORMA TION” SHEET (P82380) ON THESE
PRODUCTS. THESE DOCUMENTS UNDERGO PERIODIC CHANGES. IT IS IMPORTANT THAT YOU HA VE CURRENT INFORMA TION ON THESE
PRODUCTS. THESE MATERIALS CONT AIN IMPORT ANT INFORMATION THA T SHOULD BE READ PRIOR TO SPECIFYING OR INST ALLING
THESE PRODUCTS, INCLUDING:

• TOTAL CURRENT REQUIRED BY ALL APPLIANCES CONNECTED TO SYSTEM SECONDARY POWER SOURCES.

• FUSE RATINGS ON NOTIFICATION APPLIANCE CIRCUITS TO HANDLE PEAK CURRENTS FROM ALL APPLIANCES ON THOSE

CIRCUITS.

• COMPOSITE FLASH RATE FROM MUL TIPLE STROBES WITHIN A PERSON’S FIELD OF VIEW.

• ADDING, REPLACING OR CHANGING APPLIANCES OR CHANGING CANDELA SETTINGS WILL EFFECT CURRENT DRA W.

RECALCULATE CURRENT DRA W T O INSURE THAT THE T OT AL A VERAGE CURRENT AND T OTAL PEAK REQUIRED BY ALL
APPLIANCES DO NOT EXCEED THE RATED CAP ACITY OF THE POWER SOURCES OR FUSES.

• THE VOLTAGE APPLIED TO THESE PRODUCTS MUST BE WITHIN THEIR “REGULA TED VOL T AGE RANGE”.

• INSTALLATION OF 1 10 CANDELA STROBE PRODUCTS IN SLEEPING AREAS.

• INSTALLATION IN OFFICE AREAS AND OTHER SPECIFICA TION AND INST ALLA TION ISSUES.

• THESE APPLIANCES ARE NOT DESIGNED TO BE USED ON CODED SYSTEMS IN WHICH THE APPLIED VOL T AGE IS CYCLED ON AND OFF.

• FAILURE TO COMPL Y WITH THE INST ALLA TION INSTRUCTIONS OR GENERAL INFORMA TION SHEETS COULD RESUL T IN IMPROPER

INST ALLATION, APPLICA TION, AND/OR OPERA TION OF THESE PRODUCTS IN AN EMERGENCY SITUA TION, WHICH COULD RESUL T
IN PROPERTY DAMAGE AND SERIOUS INJUR Y OR DEA TH TO YOU AND/OR OTHERS.

• CONDUCTOR SIZE (AWG), LENGTH AND AMP ACITY SHOULD BE TAKEN INTO CONSIDERA TION PRIOR T O DESIGN AND

INSTALLA TION OF THESE PRODUCTS, P ARTICULARLY IN RETROFIT INST ALLA TIONS.

Wiring Diagrams

#

NS APPLIANCE NON-SYNCHRONIZED

FROM

PRECEDING

APPLIANCE

+

-

OR FACP

+

Appliance

NS AND NH APPLIANCES SYNCHRONIZED WITH DSM MODULE DUAL
CLASS “A” NAC CIRCUIT WITH NO AUDIBLE SILENCE FEA TURE

-

+

-

F
A
C
P

+

-

+

-

SIGNAL
CIRCUIT OUT

SIGNAL
CIRCUIT RETURN

TO NEXT

APPLIANCE

OR EOLR

DUAL SYNC MODULE

SYNC

+

-

SYNC
OUT1

+

IN1

+

MINUS1

+

AUDIBLE

AUDIBLE

-

OUT2

+

IN2

+

MINUS2

NS APPLIANCE SYNCHRONIZED WITH SM MODULE SINGLE
CLASS “B” NAC CIRCUIT WITH AUDIBLE SILENCE FEA TURE

SM

+

F

A
C
P

+ -

APPLIANCE

Strobe

NAC

Circuit

Audible

NAC

Circuit

-

+ -

APPLIANCE

STROBE
STROBE

+

Audible

EOLR

-

Audible

NS NH

NOTE: NS/NH must be set on Code 3 horn tone to achieve synchronized temporal (Code 3) tone. Refer to
installation instruction (P83983, P83600 respectively).

#

For detail using SM or DSM Sync Module refer to Data Sheet S3000C or Installation Instructions P83123 for SM and P83177 for

DSM.
Wheelock products must be used within their published specifications and must be PROPERLY specified, applied, installed,

operated, maintained and operationally tested in accordance with their installation instructions at the time of installation and
at least twice a year or more often and in accordance with local, state and federal codes, regulations and laws. Specification,
application, installation, operation, maintenance and testing must be performed by qualified personnel for proper operation in
accordance with all of the latest National Fire Protection Association (NFPA), Underwriters’ Laboratories (UL), National
Electrical Code (NEC), Occupational Safety and Health Administration (OSHA), Canadian Standard for the Installation of Fire
Alarm Systems - CAN/ULC-S524-01 and Canadian Electrical Code, Part 1, local, state, county, province, district, federal and
other applicable building and fire standards, guidelines, regulations, laws and codes including, but not limited to, all appendi­ces and amendments and the requirements of the local authority having jurisdiction (AHJ).

4

ARCHITECTS AND ENGINEERS SPECIFICATIONS

The audible/visual notification appliances shall be Wheelock Series NS Horn Strobe appliances and Series NH Horn appliances or
approved equals. The Series NS appliances shall meet and be

CAN/ULC-S526-02 for Visual Signaling Appliances and CAN/ULC-S525-99 for Audible Signaling Appliances. The Series NH

Horn shall be ULC Listed under Standard CAN/ULC-S525-99 for Audible Signaling Appliances. The horn strobe shall be listed for
indoor use and shall meet the requirements of FCC Part 15 Class B. All inputs shall be compatible with standard reverse polarity
supervision of circuit wiring by the Fire Alarm Control Panel (FACP).

The audible portion of the appliance shall have a minimum of two (2) field selectable settings for dBA levels and shall
have a choice of continuous or temporal (Code 3) audible outputs.

The strobe portion of the appliance shall produce a flash rate of one (1) flash per second over the Voltage Range and
shall incorporate a Xenon flashtube enclosed in a rugged Lexan® lens. The Series NS shall be of low current design. Where wall
mount, Multi-Candela appliances are specified, the strobe intensity shall have four (4) field selectable settings and shall be rated for:
15, 30, 75 or 110 candela. The selector switch for selecting the candela setting shall be tamper resistant and not accessible from the
front of the appliance.

When synchronization is required, the appliance shall be compatible with Wheelock’s SM or DSM Sync Module(s). The strobes shall
not drift out of synchronization at any time during operation. If the sync module fails to operate, (i.e., contacts remain closed), the
strobes shall revert to a non-synchronized flash-rate. The appliance shall also be designed so that the audible signal may be
silenced while maintaining strobe activation.

The Series NS Horn Strobes shall incorporate a Patented Universal Mounting Plate that shall allow mounting to a
single-gang, double-gang, 4-inch square, 100mm European type backboxes, or the SHBB Surface Backbox. If required, an NATP
(Notification Appliance Trimplate) shall be provided.

All notification appliances shall be backward compatible.

NOTE: Due to continuous development of our products, specifications and offerings are subject to change without notice in
accordance with Wheelock Inc. standard terms and conditions.

ULC Listed under Standard

SPECIFICATION & ORDERING INFORMATION

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Distributed By:

National Sales Office

Canada 800-397-5777

E-Mail: [e-mail]

http://www.wheelockinc.com

273 Branchport A venue • Long Branch, NJ 07740 • TEL: [phone] • FAX: [phone]

5

S2100C 02/05