P83600 K
Sheet 1 of 6
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 NH AUDIBLE APPLIANCES
Use this product according to this instruction manual. Please keep this instruction manual for future reference.
GENERAL:
Wheelock’s Series NH Audible Appliances provide a selectable continuous or Code 3 Horn tone when connected directly to the
Fire Alarm Control Panel (FACP). They can also provide a synchronized Code 3 Horn tone when used in conjunction with a Sync
Module (SM), Dual Sync Module (DSM) or the Power Supply (PS-12/24-8 UL ONLY). The NH Appliances are UL Listed under
Standard 464 for Audible Signal Appliances. The NH Appliances are also ULC Listed under Standard CAN/ULC-S525-99 for
Audible Signaling Devices for Fire Alarm Systems. They are listed for indoor use only
and equipped with a NH Mounting Plate
that can be mounted to single-gang, double-gang, 4” backbox, 100mm European backbox or SHBB surface backbox (See
Mounting Options).
Series NH Appliances can be field set for High (HI) or Low (LO) dBA sound output.
The NH 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: THE NH AUDIBLE APPLIANCE 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: 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.
WARNING: THE AUDIBLE HORN APPLIANCES MUST BE FIELD SET TO THE DESIRED TONE AND dBA
SOUND OUTPUT LEVEL BEFORE THEY ARE INSTALLED. THIS IS DONE BY PROPERLY INSERTING A
JUMPER PLUG IN ACCORDANCE WITH THESE INSTRUCTIONS. INCORRECT SETTINGS WILL RESULT IN
IMPROPER PERFORMANCE, WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR
DEATH TO YOU AND/OR OTHERS.
SPECIFICATIONS:
Table 1: UL/ULC Listed Models and Ratings
Model
UL Max RMS Current
(AMPS)
ULC Rated Average
Current (AMPS)
Regulated
Voltage
(VDC/VRMS)
UL
Voltage
ULC Voltage
CAN/ULC-S525-99
Lo Hi Lo Hi
NH-12/24 24 16.0-33.0VDC 20.0-31.0VDC 0.018 0.044 0.018 0.033
16.0-33.0VRMS 20.0-31.0VRMS 0.045 0.075 0.045 0.075
12 8.0-17.5VDC 10.5-15.6VDC 0.012 0.021 0.012 0.021
8.0-17.5VRMS 10.5-15.6VRMS 0.030 0.054 0.030 0.054
Copyright 2005 Wheelock, Inc. All rights reserved.
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