wheelock AS-24MCC, AS-24MCW, AH-12, AS-121575, AS-24MCCH Service Manual

Series AS Audible Strobe Appliances and Series AH Auddibles

THE CITY OF
NEW YORK

DEPARTMENT OF BUILDINGS

U

L

®

SERIES AS

Description

The Wheelock patented 2-wire Series AS Audible Strobe
Appliances and Series AH Audibles offer more features with
low current draw.

Strobe options for wall mount models include 1575cd or the
Wheelock patented MCW multi-candela wall strobes with field
selectable candela settings of 15/30/75/110cd, or the high
intensity MCWH strobe with field selectable 135/185cd.

Ceiling mount models incorporate Wheelock’s patented MCC
multi-candela ceiling strobe with field selectable intensities of
15/30/75/95cd or the high intensity MCCH strobe with field
selectable 115/177cd.

The audibl e pro vides a sel ecta ble choi ce of either a
co n tinuo u s horn or temp o ral patt e rn (Cod e 3) when
co nstan t volta ge fro m 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 Wheelock PS-24-8MC Power Supplies with Patented
Sync Protocol, synchronization of the continuous horn tone
provides the temporal (code 3) tone (mandated by NFPA 72)
simultaneously for all audible appliances. This ensures a
distinct temporal (code 3) pattern when 2 or more audibles
are within hearing distance. If not synchronized the temporal
sound could overlap and not be distinctive. At the same time
the strobes will be synchronized. This provides the ability to
comply with ADA guidelines concerning photosensitive epilepsy
and the NFPA standards when installing 2 or more visual
appliances within the field of view all of this plus the ability to
silence the audible is achieved by using only 2 wire.

SERIES AH

Features

• Approvals include: UL Standard 1971, UL Standard 464
New York City (MEA), California State Fire Marshal (CSFM),
Factory Mutual (FM), and Chicago (BFP). See approvals by
model in Specifications and Ordering Information

• ADA/NFPA/UFC/ANSI Compliant

• Wall mount models are available with Field Selectable

Candela Settings of 15/30/75/110cd or 135/185cd (Multi-
Candela models) or 1575cd (single candela model)

• Ceiling mount models are available with field selectable
candela settings of 15/30/75/95cd or 115/177cd (multi-candela
ceiling models)

• Selectable Continuous 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

• The strobes can be synchronized using Wheelock’s sync
modules or power supplies with built in sync protocol

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

E5946
S5391

151-92-E

For Weatherproof Series AS, See Datasheet S9004

7125-0785:131

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

WARNING: PLEASE READ THESE SPECIFICATIONS AND ASSOCIATED INSTALLATION INSTRUCTIONS CAREFULLY BEFORE USING, SPECIFYING OR

APPLYING THIS PRODUCT. VISIT WWW.COOPERWHEELOCK.COM OR CONTACT COOPER WHEELOCK FOR THE CURRENT INSTALLATION INSTRUCTIONS.
FAILURE TO COMPLY WITH ANY OF THESE INSTRUCTIONS, CAUTIONS OR 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.

General Notes:

• Strobes are designed to flash at 1 flash per second minimum 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 audible 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”.

Table 1: Ratings Per UL 1971

Model

Number

Input

Voltage

VDC

Regulated

Voltage Range

VDC/FWR

Strobe

Candela (cd)

AS-24MCW 24 16.0 - 33.0 15/30/75/110

AS-24MCCH 24 16.0 - 33.0 115/177

AS-241575W 24 16.0 - 33.0 15 (75 on Axis)

AS-121575W 12 8.0 – 17.5 15 (75 on Axis)

AS-24MCC 24 16.0 - 33.0 15/30/75/95

AS-24MCWH 24 16.0 - 33.0 135/185

ASWP-2475W 24 16.0 - 33.0 75 @ -31°F

Table 3: Average RMS Current

Audible Wall Mount Audible Strobe Models Ceiling Mount Audible Strobe Models

24 VDC Models

High (99)

dBA

Med (95)

dBA

24 vdc 0.062 0.100 0.080 0.102 0.150 0.194 0.250 0.320 0.088 0.114 0.165 0.205 0.250 0.320

UL max* 0.080 0.121 0.088 0.125 0.200 0.267 0.355 0.480 0.095 0.138 0.221 0.285 0.355 0.480

24 vdc 0.033 0.080 0.060 0.084 0.132 0.173 0.230 0.305 0.066 0.092 0.145 0.186 0.230 0.305

UL max* 0.043 0.107 0.074 0.110 0.190 0.253 0.340 0.465 0.080 0.122 0.201 0.269 0.340 0.465

AH-24 AS-241575W AS-24MCW AS-24MCWH AS-24MCC AS-24MCCH

1575cd 15cd 30cd 75cd 110cd 135cd 185cd 15cd 30cd 75cd 95cd 115cd 177cd

Table 2: dBA Ratings for 12 VDC and 24 VDC Series
AS/AH 12 and 24 VDC Audible

Description Volume

Reverberant

dBA

Per UL 464

@ 10 ft.

Anechoic

dBA

@ 10 ft.

High 91 99

Continuous

Horn

Medium 88 95

Low 83 90

High 87 99

Code 3 Horn

Medium 84 95

Low 79 90

Low (90)

dBA

12 VDC Models

High (99)

dBA

Med (95)

dBA

Low (90)

dBA

24 vdc 0.017 0.072 0.052 0.076 0.121 0.158 0.220 0.295 0.056 0.082 0.132 0.173 0.220 0.295

UL max* 0.021 0.100 0.068 0.105 0.182 0.245 0.335 0.460 0.074 0.113 0.198 0.263 0.335 0.460

Wall Mount

Audible

AH-12 AS-121575W

12 vdc 0.163 0.260

UL max* 0.192 0.320

12 vdc 0.076 0.195

UL max* 0.108 0.275

Audible

Strobe

Table 4: Average Current* (AMPS) For Series ASWP

Voltage

High dBA

Setting

(99) dBA

Medium dBA

Setting

(95) dBA

Low dBA

(90) dBA

#

Setting

24.0 VDC 0.128 0.105 0.098

UL Max* 0.168 0.155 0.150

* RMS current ratings are per UL average RMS method. UL max current
rating is the maximum RMS current within the listed voltage range (16-33v

12 vdc 0.039 0.175

UL max* 0.058 0.265

for 24v units). For strobes the UL max current is usually at the minimum
listed voltage (16v for 24v units). For audibles the max current is usually
at the maximum listed voltage (33v for 24v units). For unfiltered FWR
ratings, see installation instructions.