Wheelock AS Series Audible Strobe
Devices & AH Series Audible Devices
Description
Wheelock’s patented 2-wire AS Series Audible
Strobe Applicances and AH Series Audible Devices
offer more features with low current draw.
Strobe options for wall mount models include 15/
75cd or Wheelock’s patented MCW multi-candela
wall strobes with field selectrable candela settings
of 15/30/75/110cd.
Features
• ADA/NFPA/UFC/ANSI Compliant
•
AS Series Audible Strobe
Devices are available in wall
and ceiling-mount models:
•
Wall mount models offered
are available with Field
Selectrable Candela Settings of
15/30/75/110cd or 15/75cd
(single candela model)
•
Ceiling mount models
offered
are available with field
selectrable candela settings of
15/30/75/95cd
• Selectable Continous Horn or
Temporal (Code 3)
• 3 Selectable dBA settings (99,
95 and 90 dBA) in both tones
•
Patented 2-Wire Audible
Strobe Appliance
• Patented Universal Mounting
Plate
• Weatherproof models are
available for outdoor use
• Strobes produce 1 flash per
second over the regulated voltage
range
• 12 and 24 VDC models with wide
UL “Regulated Voltage Range”
using filtered DC or unfiltered
FWR input voltage
• Synchronize with Wheelock SM,
DSM or power supply with built-
in Wheelock sync protocol
• Fast installation with IN/OUT
screw terminals using #12 and
#18 AWG wires
AS Audible
Strobe
Ceiling mount models incorporate Wheelock’s pat-
ented MCC multi-candela ceiling strobe with field
selectrable intensities of 15/30/75/95cd.
The audible provides a selectable choice of either
a continous horn or temporal pattern (Code 3) when
constant voltage from a Fire Alarm Panel (FACP) is
applied. Each tone has 3 dBA settings to choose
from.
When used with the Wheelock Series SM or DSM
Sync Module or with a power supply with the
Wheelock sync protocol, synchronization of the
continous horn tone provides the temporal (code 3)
tone (mandated by NFPA 72) simultaneously for all
audible appliances. This ensurses a distinct tem-
poral (code 3) pattern when 2 or more audibles are
AH Audible
within hearing distance. If not synchronized the tem-
poral sound could overlap and not be distinctive. At
the same time the strobes will be synchronized.
This provides the ability to comply with ADA guide-
lines concerning photosensitive epilepsy and the NFPA standards when install-
ing 2 or more visual appliances within the field of view all of this plus the ability to
silence the audible is achieved using only 2 wire.
Listings
Listings and approvals below
apply to the basic Wheelock AS
Series Audible Strobe Devices
and AH Series Audible Devices.
In some cases, certain modules
may not be listed by certain
approval agencies, or listing may
be in process. Consult factory for
latest listing status.
• UL Listed: file E5946.
• ULC Listed: file CS356.
• MEA approved: file 152-92-E.
• CSFM approved: file 7125-
0785:131
General Notes
• Strobes are designed to flash once per second minimum over the Regulated
Voltage Range. Note that NFPA-72 (1999) specifies a flash rate of 1 to 2
flashes per second and ADA Guildelines specify a flash rate of 1 to 3 flashes
per second.
• All candela ratings represent minimum effective Strobe intensity based on UL
Standard 1971.
• AS Series Strobe products are listed under UL Standard 1971 for indoor use
with a temperature range of 32° F to 120° F (O° C to 49° C) and maximum
humidity of 93% (+ 2%)
• AH-24 Series horns are listed under UL Standard 464 for audible signal
appliances (indoor use only).
• AH-24WP Series audible appliances are listed under UL Standard 464 for
indoor/outdoor use with a temperature range of -31° F to 150° F (-35° C to 66°
C) and maximum humidity of 95%.
•
“Regulated Voltage Range” is the newest terminology used by UL to
identify the voltage range. Prior this change, UL used the terminology
“Listed Voltage Range”.
AS Series & AH Series
CS-2231 06/01/04
Page 1 of 4
Engineer’s Specifications
• The notification appliances shall be Wheelock’s patented AS Series Audible Strobe
and AH Series Audible Horn devices, and when synchronization is required, compan-
ion SM and DSM Sync Modules, or approved equivalents. AS Series devices and SM
and DSM Sync Modules shall be listed under UL Standard 1971 (Emergency Devices
for the Hearing Impaired for Indoor Fire Protection Service). AH Series Audible Horn
shall be listed under Standard 464 (Fire Protective Signaling). AS, AH, SM, and DSM
devices shall be certified to meet FCC Part 15, Class B.
• The devices shall be designed for two-wire operation and shall provide either a
continuous or temporal (Code 3) tone when constant voltage from a Notification Ap-
pliance Circuit (NACs) of the Fire Alarm Control Panel (FACP) is applied; or synchro-
nized temporal (Code 3) horn and synchronized strobe when used in conjunction with
the SM or DSM Sync Modules.
• The AS Series shall be designed so that the audible signal may be silenced while
maintaining strobe activation (when used with the SM or DSM Sync Modules). The
SM and DSM Sync Modules shall incorporate two inputs from Notification Appliance
Circuits (NACs) for power connection from the Fire Alarm Control Panel (FACP): one
for the strobe circuit (NAC), and one for the audible circuit (NAC). A single two-wire
output shall control both the audible and visual appliances. Upon activation of the
audible silence function of the FACP, the audible signal shall be silenced while main-
taining strobe activation.
• Sound output at 10 feet (3.048 m) shall be field-selectable for 90, 95, or 99 dBA
anechoic for both continuous or temporal (Code 3) tone. The AS Series shall provide
listed strobe intensities of 15, 15/75, 30, 75, and 110 candela for wall-mount and/or
75 or 100 candela for ceiling-mount applications; with a flash rate of one flash per
second minimum across the listed voltage range. The strobe shall incorporate a
Xenon® flashtube enclosed in a rugged LEXAN® lens. The maximum allowable
current at 24 VDC shall be 87 mA @ 15 cd, 102 mA @ 15/75 cd, 120 mA @ 30 cd, 177
mA @ 75 cd, and 202 mA @ 110 cd. All devices shall incorporate a reduced inrush
circuit design. The strobe shall have a horizontal plane.
• The Sync Module shall be designed and available in two versions: the
SM-12/24,
for control of a single Class “B” NAC circuit; and a dual-output version, the
DSM-12/
24,
for control of either a single Class “A” or two Class “B” NAC circuits. The DSM
dual-circuit version shall provide the additional capability of “daisy-chaining,” i.e., the
ability to interconnect multiple DSM’s for synchronous horn and strobe operation on
multiple NAC circuits. DSM-12/24 interconnection capability shall be for a maximum
of 20 modules (40 Class “B” NAC circuits or 20 Class “A” NAC circuits). Rated aver-
age current requirement for the SM-12/24 shall be 0.014 amperes @ 12 VDC and
0.025 amperes @ 24 VDC; the DSM-12/24 shall be 0.020 amperes @ 12 VDC and
0.038 amperes @ 24 VDC. The SM Sync Module shall be capable of handling a three-
ampere load at 12 or 24 VDC. The DSM Sync Modules shall be capable of handling
a load of three amperes
per circuit
in the Class “B” mode, and three amperes
per
module
in the Class “A” mode at 12 or 24 VDC.
• SM or DSM Sync Modules and AS Audible Strobes shall be designed as a
system
for continuous activation of the strobes should the Sync Module contacts fail in the
passive state (i.e., contacts remain closed). In this default mode, the strobes shall
revert to a non-synchronized default flash rate.
• AS/AH Series devices shall be designed for operation at 12 or 24 VDC, over their
respective listed voltage ranges of 10.5 to 15.6 VDC; and 20.0 to 31.0 VDC. The units
shall be designed for operation on filtered DC, or unfiltered V
RMS
. Rated average current
for AS Series devices shall depend upon voltage and strobe intensity; current shall be
as low as 0.058 amperes for 24 VDC versions and 0.145 amperes for 12 VDC ver-
sions. Rated average current for AH Series devices (volume set at high-dB output)
shall be 0.041 amperes for 24 VDC versions and 0.113 amperes for 12 VDC versions.
• All versions shall be polarized for DC supervision and shall incorporate screw ter-
minals for in/out field wiring of size #18 AWG (0.75 mm²) to #12 AWG (3.25 mm²).
• AS/AH shall incorporate a patented Universal Mounting Plate which shall allow
mounting to single-gang, double-gang, 4" (10.16 cm) square, 100 mm European
backboxes or Wheelock’s SHBB surface backbox. No additional trim plate shall be
required for flush mounting.
• Dimensions for AS/AH appliances shall be 4.625" (11.7475 cm) square by 1.5" (3.81
cm) deep.
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, appli-
cation, installation, operation, maintenance, and testing must be performed by qualified person-
nel 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), 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).
C O N TA C T
WHEELOCK
FOR “IN-
STALLATION
INSTRUCTIONS”
(Wheelock P83509 [AS], P83641
[AH-WP], and P83519 [AH]) AND “GEN-
ERAL INFORMATION” SHEET (Wheelock
P82380) ON THESE PRODUCTS. THESE
MATERIALS UNDERGO PERIODIC
CHANGES. IT IS IMPORTANT THAT YOU
HAVE CURRENT INFORMATION ON
THESE PRODUCTS. THESE MATERIALS
CONTAIN IMPORTANT INFORMATION
THATSHOULDBEREADPRIORTOSPECI-
FYING OR INSTALLING THESE PROD-
UCTS, INCLUDING:
•
TOTAL CURRENT REQUIRED BY ALL
DEVICES CONNECTED TO SYSTEM PRI-
MARY AND SECONDARY POWER
SOURCES.
•
FUSE RATINGS ON NAC CIRCUITS TO
HANDLE PEAK CURRENTS FROM ALL
DEVICES ON THOSE CIRCUITS.
•
COMPOSITE FLASH RATE FROM MUL-
TIPLE STROBES WITHIN A PERSON’S
FIELD OF VIEW.
•
VOLTAGE APPLIED: THE VOLTAGE AP-
PLIED TO THESE PRODUCTS MUST BE
WITHIN THEIR RATED INPUT VOLTAGE
RANGE.
•
INSTALLATION OF 110 CANDELA
STROBE PRODUCTS IN SLEEPING AR-
EAS.
•
INSTALLATION IN OFFICE AREAS AND
OTHER SPECIFICATION AND INSTALLA-
TION ISSUES.
•
Note: USE AS/AH ONLY ON CIRCUITS
WITH CONTINUOUSLYAPPLIED OPER-
ATING VOLTAGE. DO NOT USE AS SE-
RIES ON CODED OR INTERRUPTED NAC
CIRCUITS IN WHICH THE APPLIED
VOLTAGE IS CYCLED ON AND OFF, AS
THE STROBE MAY NOT FLASH.
•
CONDUCTOR SPECIFICATIONS: CON-
DUCTOR SIZE (AWG), LENGTH AND
AMPACITY SHOULD BE TAKEN INTO
CONSIDERATION PRIOR TO DESIGN
AND INSTALLATION OF THESE PROD-
UCTS, PARTICULARLY IN RETROFIT IN-
STALLATIONS.
•
FAILURE TO COMPLY WITH THE INSTAL-
LATION INSTRUCTIONS OR GENERAL
INFORMATION SHEETS COULD RESULT
IN IMPROPER INSTALLATION, APPLICA-
TION, AND/OR OPERATION OF THESE
PRODUCTS IN AN EMERGENCY SITUA-
Page 2 of 4
AS Series & AH Series
CS-2231 06/01/04
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