wheelock NS-24MCW, NH Service 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.

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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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