Notifier Wheelock NH Series Horns - Manual

dn-6601:a • 10/16/09 — Page 1 of 4
Wheelock NS/NH Series
NS Series Horn Strobes
NH Series Horns
Audio/Visual Devices
dn-6601:a • J-134
General
The Wheelock Series NS Horn Strobe Appliances are
designed for indoor, wall and ceiling mount applications.
The Series NH Horn and the horn portion of the Series NS
include a selectable continuous horn tone or temporal pattern
(Code 3) with selectable dBA settings of 90 or 95 dBA.
Strobe options include 15/75cd or Wheelock’s Multi-Candela
strobe with field selectable candela settings of 15/30/75/
110cd.
These versatile Horn Strobe Appliances may be synchronized
when used in conjunction with the Wheelock SM or DSM Sync
Modules or a Power Supply with the Wheelock patented Sync
Protocol. Additionally, the audible may be silenced while main-
taining strobe activation.
All models of the Series NS and NH are designed for maxi-
mum performance, reliability and cost-effectiveness while
meeting or exceeding the latest requirements of NFPA 72/
ANSI 117.1/UFC and UL Standards 1971 and 464 as well as
meeting ADA requirements concerning photosensitive epi-
lepsy.
Features
• Field selectable Candela settings 15/30/75/110cd (24 VDC
Multi-Candela models) or 15/75cd in 12 or 24 VDC.
• Selectable Continuous Horn or Temporal (Code 3).
• 2 selectable dBA settings of 90 and 95 dBA in both tones.
• 12 and 24 VDC models with UL “Regulated Voltage” using
filtered DC or unfiltered VRMS input voltage.
• ADA/NFPA/UFC/ANSI compliant.
• Complies with OSHA 29, Part 1910.165.
• NH Horn is selectable 12 or 24 VDC in 1 unit.
• Synchronize with Wheelock SM or DSM Sync Module or
the Power Supply with built-in Sync Protocol.
• Patent Pending Universal Mounting Plate for single-gang,
double-gang 4” (10.16c m) square, or 100 mm European
backboxes, or Wheelock’s SHBB shallow surface backbox.
• Fast installation with IN/OUT screw terminals using #12 to
#18 AWG wires.
General Notes
• Strobes are designed to flash at 1 flash per second mini-
mum over their “Regulated Voltage Range.” Note that NFPA
72 specifies a flash rate of 1 to 2 flashes per second and
ADA Guidelines specify a flash rate of 1 to 3 flashes per
second.
• All candela ratings represent minimum effective Strobe
intensity based on UL Standard 1971.
• Series NS Strobe products are listed under UL Standard
1971 for indoor use with a temperature range of 32°F to
120°F (0°C to 49°C) and maximum humidity of 93% (± 2%).
• Series NH Horns are listed under UL Standard 464 for audi-
ble signal appliances (indoor use only).
• “Regulated Voltage Range” is the newest terminology used
by UL to identify the voltage range. Prior to this change, UL
used the terminology “Listed Voltage Range.”
!
WARNING: PLEASE READ THESE
SPECIFICATIONS AND ASSOCIATED
INSTALLATION INSTRUCTIONS CAREFULLY
BEFORE USING, SPECIFYING OR APPLYING
THIS PRODUCT. FAILURE TO COMPLY WITH
ANY OF THESE INSTRUCTIONS, CAUTIONS
OR WARNINGS COULD RESULT IN PROPERTY
DAMAGE, AND SERIOUS INJURY OR DEATH .
Table 1: Ratings Per UL Standard 1971
Model
Input
Voltage
VDC
Regulated
Voltage
Range
VDC/FWR
Strobe
Candela
(CD)
NS-24MCW 24 16.0-33.0 15/30/75/110
NS-241575W 24 16.0-33.0 15 (75 on axis)
NS-121575W 12 8.0 - 17.5 15 (75 on axis)
NS-24MCC 24 16.0-33.0 15/30/75/95
NS-24MCCH 24 16.0-33.0 115/177
Table 2: dBA Ratings for Series NS/NH Horn
Description Volume
Reverberant
dBA
@ 10ft per UL
464
Anechoic dBA
@ 10ft
12VDC 24VDC 12VDC 24VDC
NS Horn Strobe NH Horn
Multi-Candela Indicator
(bottom of Strobe Lens)
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