wheelock AMT-24-SLM, AMT-24-SL INSTALLATION INSTRUCTIONS

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www.wheelockinc.com INSTALLATION INSTRUCTIONS

SERIES AMT MULTITONE SYNCHRONIZED (SYNC) STROBE APPLIANCES

GENERAL:

The AMT Multitone Synchronized (Sync) Strobe Appliances are UL Listed under Standard 1971 for Emergency Appliances for the
Hearing Impaired and UL Standard 464 for SL Audible Signal Appliances. They are listed for indoor use only

with the backboxes
specified in these instructions (See Mounting Options). Models with SL Sync Strobes are Listed for wall or ceiling mounting; models
with SLM Sync Strobes are Listed for wall mounting. The SLM strobes are listed at 15 candela under UL Standard 1971 and meet 75
candela intensity on axis with low current draw. The AMT Multitone Sync Strobe Appliances use a xenon flashtube with solid state

circuitry enclosed in a rugged Lexan lens to provide maximum visibility and reliability for effective visible signaling.

Wheelock's AMT Appliances are unique multitone alarm signals with separate input terminals for each sound. They are the ideal
choice for suppression systems and emergency signaling systems where distinctive multiple alarm conditions are required. Eight
groups of three self-prioritized sound outputs are provided with separate electrically isolated input terminals for each sound (see Table
2 and Table 7 for sound selections). Sound output can be field set to provide either HIGH (HI) dBA or STANDARD (STD) dBA
sound output level.

AMT Multitone Sync Strobe Appliances are designed to work with Wheelock’s Sync Control Module (SCM-24 Series) to provide
synchronized flashes when the signal are activated.

All AMT Multitone Sync Strobe models are designed for use with either filtered or unfiltered Full-Wave-Rectified (FWR) input
voltage. The AMT Multitone Sync Strobe Appliances have separate input terminals for alarm tone activation and sync strobe
activation. The sync strobes can be easily field programmed to operate independently or in unison with all of the audible alarms. All
inputs are polarized for compatibility with standard reverse polarity supervision of circuit wiring by a Fire Alarm Control Panel
(FACP).

: All

NOTE

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, SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.

WARNING: THE AMT MULTITONE SYNC STROBE APPLIANCES MUST BE FIELD SET TO THE DESIRED dBA SOUND
OUTPUT LEVEL AND ALARM TONE BEFORE THEY ARE INSTALLED. THIS IS DONE BY PROPERLY INSERTING A JUMPER
PLUG AND ADJUSTING A FOUR POSITION SWITCH IN ACCORDANCE WITH THESE INSTRUCTIONS. INCORRECT
SETTINGS WILL RESULT IN IMPROPER PERFORMANCE AND MAY DAMAGE THE PRODUCT.

SPECIFICATIONS:

CAUTIONS

and

WARNINGS

are identified by the symbol

Table 1: UL Listed Models

Model

Nominal

Voltage

(VDC)

Rated

Voltage

(VDC)

Sync Strobe

Candela

(CD)

Mounting

Options

AMT-24-SL 24 20-31 15 A,B,C,D
AMT-24-SLM 24 20-31 15* E,F,G

*15cd models are Listed at 15cd and meet 75cd on axis

NOTE: THE MAXIMUM WIRE IMPEDANCE BETWEEN STROBES SHALL NOT EXCEED 35 OHMS. THE MAXIMUM NUMBER
OF STROBES ON A SINGLE NOTIFICATION APPLIANCE CIRCUIT SHALL NOT EXCEED 31.

. All warnings are printed in bold capital letters.

WARNING: THESE APPLIANCES WERE TESTED TO
THE OPERATING VOLTAGE LIMITS OF 20-31 VOLTS
USING FILTERED (DC) OR UNFILTERED FULL-WAVE
RECTIFIED (FWR). DO NOT APPLY 80% AND 110% OF
THESE VOLTAGE VALUES FOR SYSTEM OPERATION.

Check the minimum and maximum output of the power

supply and standby battery and subtract the voltage drop
from the circuit wiring resistance to determine the applied

voltage to the signaling appliance.

Copyright 1995, 2000 Wheelock, Inc. All rights reserved.

Table 2: Current Ratings for AMT Multitone Audible Appliances

Rated Average

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Tone Tone Description Current (Amps)

24 VDC

HI dBA STD dBA
Horn Broadband Horn (Continuous) 0.040 0.023
Bell 1560 Hz Modulated (0.07 Sec. ON/Repeat) 0.016 0.012
March Time Horn Horn (0.25 Sec. ON/0.25 Sec. OFF/Repeat) 0.040 0.023
Code 3 Horn Horn (ANSI S3.41 Temporal Pattern) 0.040 0.023
Code 3 Tone 500 Hz (ANSI S3.41 Temporal Pattern) 0.028 0.017
Slow Whoop 500-1200Hz Sweep (4.0 Sec. ON/0.5 Sec. OFF/Repeat) 0.048 0.026
Siren 600-1200Hz Sweep (1.0 Sec. ON/Repeat) 0.036 0.023
HI/LO 1000/800 Hz (0.25 Sec. ON/Alternate) 0.020 0.015
Vibrating Chime 700Hz (1.0 Sec. Decay/Repeat) 0.017 0.012

Add 25% more input current than shown in Table 2 when operating the unit at maximum input voltage.

Add sync strobe current from Table 4 to audible signal current from Table 2 to obtain total current for each unit, if the sync strobe and
audible are wired to operate in unison on a single circuit.

Table 3: dBA for AMT Multitone with Sync Strobe

Anechoic Reverberant
dBA @ 10' dBA @ 10' Per UL 464

Tone Nominal Minimum Nominal

Voltage Voltage Voltage
HI STD HI STD HI ST

D
Horn 98 92 82 79 85 82
Bell 91 86 79 75 82 75
March Time

98 92 82 75 85 79
Horn
Code 3 Horn 98 92 82 75 82 79
Code 3 Tone 94 89 82 79 85 79
Slow Whoop 98 93 79 75 82 75
Siren 97 92 79 73* 79 75
HI/LO 92 87 79 75 82 75
Vibrating

88 82 75 70* 79 73*
Chimes

Anechoic dBA is measured on-axis in a non-reflective (free
field) test room using fast meter response. For peak dBA
(measured with peak meter response), add 5 dBA to anechoic
values shown in Table 3. Reverberant dBA is a minimum UL
rating based on sound power measurements in a reverberant test
room.

WARNING: AMT MULTITONE SYNC STROBE MODELS

SET ON "SIREN AND VIBRATING CHIME TONES" WITH
STANDARD dBA DO NOT MEET THE 75 dBA MINIMUM UL
REVERBERANT SOUND LEVEL REQUIRED FOR PUBLIC
MODE FIRE PROTECTION SERVICE (NOTED BY * IN TABLE

3). MODELS WITH SETTINGS WHICH PRODUCE LESS
THAN 75 dBA MAY NOT BE HEARD. THIS SETTING IS
ACCEPTABLE ONLY FOR GENERAL SIGNALING (NON­FIRE ALARM) USE. USE THE "HIGH" dBA SETTING WITH
THIS TONE OR USE A DIFFERENT TONE FOR PUBLIC
MODE SERVICE.

Table 4: Sync Strobe Current Requirements (AMPS)

Rated Average Current Rated Peak Current Rated Inrush Current

Voltage SL SLM SL SLM SL SLM
20VDC .096 .138 .192 .310 .252 .252
24VDC .096 .138 .228 .320 .300 .300
31VDC .096 .138 .252 .320 .384 .384

20VFWR .105 .150 .252 .435 .384 .384
24VFWR .100 .150 .260 .450 .456 .456
31VFWR .096 .152 .288 .450 .540 .540

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WARNING: MAKE SURE THAT THE TOTAL AVERAGE CURRENT, TOTAL PEAK CURRENT AND TOTAL INRUSH
CURRENT REQUIRED BY ALL APPLIANCES THAT ARE CONNECTED TO THE SYSTEM'S PRIMARY AND SECONDARY
POWER SOURCES, SIGNALING CIRCUITS, SM, DSM SYNC MODULES AND PS-12/24-8 DO NOT EXCEED THE POWER
SOURCES' RATED CAPACITY OR THE CURRENT RATINGS OF ANY FUSES ON THE CIRCUITS TO WHICH THESE
APPPLIANCES ARE WIRED. OVERLOADING POWER SOURCES OR EXCEEDING FUSE RATINGS COULD RESULT IN LOSS
OF POWER AND FAILURE TO ALERT OCCUPANTS DURING AN EMERGENCY, WHICH COULD RESULT IN PROPERTY
DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.

When calculating the total average, peak and inrush currents: Use Table 4 to determine the highest value of "Rated Average Current"
for an individual strobe (across the expected operating voltage range of the strobe), determine the highest value of "Rated Inrush
Current" or "Tated Peak Current" (whichever is higher) of an individual strobe (across the expected voltage range of the strobe), then
multiply these values by the total number of strobes; be sure to add the currents for any other appliances, including audible signaling
appliances, powered by the same source and include any required safety factors.

If the inrush current or peak current exceeds the power supplies' inrush capacity, the output voltage provided by the power supplies
may drop below the listed voltage range of the appliances connected to the supply and the voltage may not recove in some types of
power supplies. For example, an auxiliary opower supply that lacks filtering at its output stage (either via lack of capacitance and/or
lack of battery backup across the output) may exhibit this characteristic.

CAUTION

WARNING: THE SYNC STROBES ARE DESIGNED TO FLASH AS SPECIFIED WITH CONTINUOUS (NON-CODED) APPLIED
VOLTAGE. THE SYNC STROBES MAY NOT FLASH IF USED IN CODED SYSTEMS.

: Strobes are not designed to be used on coded systems in which the applied voltage is cycled on and off.

All models are UL Listed for indoor use only with a temperature range of +32oF to +120oF (0oC to +49oC) and maximum humidity
of 85% RH.

CAUTION

: If Multitone Strobe Appliances are operated within 15 inches of a person’s ear, they can produce a sound pressure
level that exceeds the maximum 120 dBA permitted by ADA and OSHA rules. Exposure to such sound levels can result in damage to
a person’s hearing.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital appliance, pursuant to Part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

1) Reorient or relocate the receiving antenna, 2) Increase the separation between the equipment and receiver, 3) Connect the
equipment into an outlet on a circuit different from that to which the receiver is connected, and 4) Consult the dealer or an
experienced radio/TV technician for help.

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