wheelock AMT-241575, AMT-24MCW Service Manual

FIRE ALARM SYSTEMS

Description

WHEELOCK’S Series AMT Multiple Input Electronic
Appliances provide the industry with a ULC combination
audible/visual appliance that simplifies installation and
offers three (3) distinct prioritized audible signals from
three isolated inputs. Priority (1) will override all other
commands upon activation.

The AMT offers a choice of eight (8) self-prioritized sound
combinations for suppression releasing systems,
combination security and emergency evacuation
systems and high risk installations as well as many
other applications.

Each AMT Audible and AMT S trobe appliance has two
user selective sound output levels: Standard dBA and
High dBA. The AMT Audible provides 12VDC or 24VDC
operation, filtered or FWR. The AMT S trobe Appliances
operate at 24VDC and may be used with filtered or
unfiltered (FWR) input voltages. Separate supervised
sets of input terminals are available for each prioritized
input. Jumper plugs are provided to enable both tone
and strobe to operate simultaneously for all inputs.

The AMT Multitone S trobe Appliances are ULC Listed
under Standard CAN/ULC-S526-02 for V isual Signaling
Appliances and Standard CAN/ULC-S525-99 for Audible
Signaling Appliances and use a Xenon flashtube with
solid state circuitry enclosed in a rugged Lexan® lens
to provide maximum reliability for effective visible
signaling.

All models may be synchronized when used in
conjunction with the Wheelock SM or DSM Sync
Modules, with patented Sync Protocol.

Synchronization of the continuous horn tone provides
the temporal (Code 3) tone as mandated by NFP A-72
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 may overlap and not be distinctive. At
the same time, the strobes will also be synchronized.
This provides the ability to comply with ADA
recommendations concerning photosensitive epilepsy
and NFPA and UFC standards when installing tow or
more visual appliances within the field of view.

Tone Group Selection

INC.

Helping People Take Action

SERIES AMT AND AMT STROBE

MUL TITONE ELECTRONIC APPLIANCES

SERIES AMT

Features

• Approvals include: CAN/ULC-S526-02 for Visual Signaling
Appliances and Standard CAN/ULC-S525-99 for Audible
Signal Appliances

• Designed to meet or exceed NFPA/ANSI Standards and ADA
Accessibility Guidelines. Meets OSHA 29 Parts 1910.165

• Three separate prioritized inputs that will activate three
isolated signals

• All inputs are supervised

• Code-3 Horn and Tone meet ANSI/NFP A/ISO temporal p attern.

• Two power taps for High dBA and Standard dBA @ 10 feet

• AMT Strobe models available with 15/75 and 75 candela
ratings for independent or combination input activations

• AMT with strobe can flash independently or in unison with all
audible signals

• Selectable input voltage (12 or 24 VDC) for non-strobe
applications

• Polarized inputs for compatibility with standard reverse
polarity type supervision of circuit wiring by an alarm panel.

• Low cost installation via standard electrical boxes. Attractive
flush or surface mounting options

• No additional trimplate required for flush mounting. Fast
installation with In/Out screw terminals using #12 to #18 AWG

SM

Input Commands

Copyright 2005 Wheelock, Inc. All rights reserved.

Voltage
Selection

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General:

The Series AMT Multitone Strobe Appliances are ULC Listed under Standard CAN/ULC-S525-99 for Visual Signaling Appliances
and Standard CAN/ULC-S526-02 for Audible Signaling Appliances for Fire Alram Systems for indoor use with a temperature range
of 0°C to 49°C (32°F to 49°F). They are listed for indoor only use with the backboxes specified in these instructions (See Mounting
Options). The AMT Multitone Strobe signals use a Xenon flashtube with solid state circuitry enclosed in a rugged Lexan
provide maximum visibility and reliability for effective visible signaling.

NOTE: All CAUTIONS and WARNINGS are identified by the symbol . All warnings are printed in bold capital letters.
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
APPLICA TION, INSTALLA TION AND/OR OPERA TION OF THESE PRODUCTS IN AN EMERGENCY SITUATION, WHICH COULD
RESULT IN PROPERTY DAMAGE, SERIOUS INJURY OR DEA TH TO YOU AND/OR OTHERS.

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Add 25% more input current than shown in Table 1 when operating
the unit at maximum input voltage.

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Add average strobe current from Table 4 to average audible current
from Table 1 to obtain total average current for each unit, if the strobe
and audible are wired to operate in unison on a single circuit.

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
5 for sound selections). Sound output can be field set to provide either
HIGH (HI) dBA or STANDARD (STD) dBA sound output level.

All AMT Multitone Strobe models are designed for use with either
filtered or unfiltered Full-Wave-Rectified (FWR) input voltage. The AMT
Multitone Strobe Appliances have separate input terminals for alarm
tone activation and strobe activation. The 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). In the event that three simultaneous commands occur,
priority one will activate. If priority 2 + priority 3 exist, priority 2 will
activate.

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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 typical anechoic values shown in Table 2. Reverberant dBA is a minimum UL rating based on
sound power measurements in a reverberant test room.

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