Bosch MTWPB-2475W-NW, MTWPA-2475W-NW, MTWP-2475W-FR, MTWP-2475C-FR Installation Manual

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Long Branch, NJ 07740 Thank you for using our products.
[phone] (USA)
[phone] (CANADA) INSTALLATION INSTRUCTIONS
www.wheelockinc.com MULTITONE STROBE WEATHERPROOF APPLIANCES

Use this product according to this instruction manual. Please keep this instruction manual for future reference.

GENERAL:

The Multitone Strobe Weatherproof Appliances are UL Listed under Standard 1638 (Visual Signaling Appliances) for indoor/outdoor use, Fire Protective Service and
UL Standard 464 for Audible Signal Appliances. The MTWP Appliance is ULC Listed under Standard CAN/ULC-S526-02 for Visual Signaling and under Standard
CAN/ULC-S525-99 for Audible Signal Devices for Fire Alarm Systems. An outdoor backbox is required for outdoor installation. The Multitone Strobe Appliances use
a xenon flashtube with solid state circuitry enclosed in a polycarbonate lens to provide maximum visibility and reliability for effective visible signaling.

Multitone Strobe Appliances can be field set to produce any one of eight commonly used alarm tones. Sound output can be field set to provide either HIGH (HI) dBA
or STANDARD (STD) dBA sound output level.

All Multitone Strobe models are designed for use with either filtered DC or unfiltered full-wave-rectified (FWR) input voltage. The Multitone Strobe Appliances have
separate input terminals for alarm tone activation and strobe activation. Shunt wires are provided to operate both the alarm tone and the strobe simultaneously on a
single input circuit (See Wiring Diagram). All inputs are polarized for compatibility with standard reverse polarity supervision of circuit wiring by a fire alarm control
panel (FACP).

NOTE: All Canadian installations should be in accordance with the Canadian Standard for the Installation of Fire Alarm Systems, CAN/ULC-S524-01 and the
Canadian Electrical Code, Part 1. Final acceptance is subject to authorities having jurisdiction (AHJ).

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

SPECIFICATIONS:

Table 1: UL Listed Models and Ratings

Model

Regulated

Voltage

(VDC/VRMS)

Rated

Voltage

(VDC/VRMS)

Rated Strobe Candela

(cd)

At 25° C At –35° C

Reverberant

Dba

at 10 Feet

MTWP-2475W 24 16.0-33.0 180 75 76-94
MTWP-2475C 24 16.0-33.0 180 75 76-94

Table 1A: ULC Listed Models and Ratings

Model

Regulated

Voltage

(VDC/VRMS)

Rated

Voltage

(VDC/VRMS)

Rated Strobe

Candela

(cd)

Anechoic

dBA at 10

Feet

MTWP-2475W 24 20-31.0 180 85-100
MTWP-2475C 24 20-31.0 180 85-100

NOTES:

1. Strobes will produce 1 flash per second over the "Regulated Voltage" range.

2. All models are UL and ULC Listed for indoor and outdoor use with a temperature range of UL -31°F to +150°F (-35°C to +66°C) ULC -40°F
to +150°F (-40°C to +66°C) and maximum humidity of 93% ±2% RH.

WARNING: THESE APPLIANCES WERE TESTED TO THE REGULATED VOLTAGE LIMITS OF 16.0-33.0 VOLTS FOR 24V MODELS AND 8.0-

17.5 VOLTS FOR 12V MODELS USING FILTERED DC OR UNFILTERED FULL-WAVE-RECTIFIED VOLTAGE. DO NOT APPLY VOLTAGE
OUTSIDE OF THIS RANGE.

WARNING: 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 STROBES. THE MAXIMUM
WIRE IMPEDENCE BETWEEN STROBES SHALL NOT EXCEED 35 OHMS.

CAUTION: These notification appliances are UL Listed as “Regulated”. They are intended to be used with FACPs whose notification circuits are UL Listed as

“Regulated.” These appliances shall not be used on UL Listed “Special Application” notification circuits unless the appliances are identified to be compatible in the
installation instructions of the FACP or unless the FACP is identified to be compatible in this instruction manual.

Use Tables 2, 2A, and 2B to determine the highest value of “Rated Current” for an individual Multitone Strobe (across the expected operating voltage range of the
Multitone Strobe). Add strobe current from Table 2B audible appliance current from Table 2 and 2A to obtain total current for each unit, if the strobe and audible are
wired to operate in unison on a single circuit. 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.

NOTE: The maximum number of strobes on a single notification appliance circuit shall not exceed 50.

WARNING: MAKE SURE THAT THE TOTAL RATED CURRENT REQUIRED BY ALL APPLIANCES THAT ARE CONNECTED TO THE
SYSTEM’S PRIMARY AND SECONDARY POWER SOURCES, APPLIANCE CIRCUITS, SM, DSM SYNC MODULES AND WHEELOCK POWER
SUPPLIES DOES NOT EXCEED THE POWER SOURCES’ RATED CAPACITY OR THE CURRENT RATINGS OF ANY FUSES ON THE CIRCUITS
TO WHICH THESE APPLIANCES ARE WIRED. OVERLOADING POWER SOURCES OR EXCEEDING FUSE RATINGS COULD RESULT IN LOSS

Copyright 2005 Wheelock, Inc. All rights reserved. P84150 H

Sheet 1 of 6

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.

Table 2: UL Current Ratings for Multitone only (AMPS)

Tone Tone

Description 16-33VDC 16-33VRMS
HI

Horn Broadband Horn (Continuous) 0.084 0.038 0.087 0.045
Bell 1560 Hz Modulated (0.07 Sec. ON/Repeat) 0.053 0.024 0.051 0.028
March Time Horn (0.25 Sec. ON/0.25 Sec. OFF/Repeat) 0.062 0.027 0.087 0.045
Code 3 Horn Horn (ANSI S3.41 Temporal Pattern) 0.051 0.027 0.087 0.045
Code 3 Tone 500 Hz (ANSI S3.41 Temporal Pattern) 0.052 0.025 0.056 0.029
Slow Whoop 500-1200Hz Sweep (4.0 Sec. ON/0.5 Sec. OFF/Repeat) 0.098 0.035 0.092 0.042
Siren 600-1200Hz Sweep (1.0 Sec. ON/Repeat) 0.088 0.036 0.092 0.040
HI/LO 1000/800 Hz (0.25 Sec. ON/Alternate) 0.057 0.025 0.058 0.032

Table 2A: ULC Current Ratings for 24VDC Multitone only (AMPS)

Tone

Horn

Bell

March Time

Code 3 Horn

Code 3 Tone

Slow Whoop

Siren

HI/LO

AUDIBILITY RATINGS:

Tone

Horn

Bell

March Time

Code 3 Horn

Code 3 Tone

Slow Whoop

Siren

HI/LO

ULC Directional Characteristics:

At a voltage range of 20.0-31.0VDC. -3 dBA: 48 degrees left, 41 degrees right -6 dBA: 50 degrees left, 58 degrees right.

HI/LO

Volume

HI 89 92 94 97 99 100

STD 84 87 90 91 93 94

HI 83 86 88 90 92 93

STD 76 80 83 85 87 88

HI 86 89 91 97 99 100

STD 80 84 87 91 93 94

HI 85 88 90 97 99 100

STD 79 83 86 91 93 94

HI 81 85 86 93 95 96

STD 76 80 82 88 90 91

HI 87 90 92 97 99 100

STD 81 85 87 92 94 95

HI 86 89 92 96 98 99

STD 81 84 87 91 93 94

HI 83 86 89 91 93 94

STD 77 81 84 86 88 89

HI/LO

Volume

HI 0.036 0.040 0.050

STD 0.021 0.023 0.029

HI 0.013 0.014 0.018

STD 0.011 0.012 0.015

HI 0.036 0.040 0.050

STD 0.021 0.023 0.029

HI 0.036 0.040 0.050

STD 0.021 0.023 0.029

HI 0.025 0.028 0.035

STD 0.015 0.017 0.021

HI 0.043 0.048 0.060

STD 0.023 0.026 0.033

HI 0.032 0.036 0.045

STD 0.021 0.023 0.029

HI 0.018 0.020 0.025

STD 0.013 0.014 0.018

Table 2B: Current Ratings for Strobe only (AMPS)

Voltage 75cd
DC 16-33VDC 0.138
FWR 16-33VRMS 0.222

UL 24VDC dBA Reverberant Ratings

Per UL 464 at 10 Feet

16V 24V 33V 20V 24V 31V

20VDC 24VDC 31VDC

Maximum RMS Current

Table 3: dBA Ratings

DC

Maximum RMS Current

(AMPS)

dBA

ULC 24VDC dBA Anechoic Ratings

Per CAN/ULC S525-99 at 10 Feet

STD
dBA

HI

dBA

STD
dBA

P84150 H

Sheet 2 of 6