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Copyright 2005 Wheelock, Inc.  All rights reserved.

 

 

 

      P84155 

M

 

Sheet 1 of 6 

 

 

273 

Branchport 

Avenue         

Thank you for using our products.

 

Long Branch, NJ  07740 
(800) 

 

631-2148 

(USA) 

         

 

 

 

INSTALLATION 

INSTRUCTIONS 

(800)  397-5777 (CANADA)             MULTITONE STROBE APPLIANCES 
www.wheelockinc.com  

 

 

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

 

GENERAL: 

The Multitone Strobe Appliances are UL Listed under Standard 1971 for Signaling Devices for the Hearing Impaired and UL Standard 464 for Audible Signal 
Appliances.  The 15cd model strobe is listed at 15 candela under UL Standard 1971 and meets 75 candela intensity on axis with low current draw. The 24MCW model 
strobe can provide 4 selectable candela settings (15, 30, 75, 110). The Multitone MT-241575W and MT-121575W Appliances are also 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.  The MT Strobes can provide a 
non-synchronized strobe appliance when connected directly to a fire alarm control panel (FACP), or provide a synchronized strobe appliance when used in conjunction 
with a Sync Module (SM), Dual Sync Module (DSM) or Wheelock power supplies.  All models in the MT Series are listed for 

wall mount only,

 with the backboxes 

specified in these instructions (See wiring and mounting information).  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/ULC Listed Models and Ratings 

UL Ratings 

ULC Ratings 

 

 

Model 

 

Regulated 

Voltage 

(VDC/VRMS) 

Voltage 

Range 

(VDC/VRMS) 

 Reverberant 

dBA  

At 10 Feet 

Voltage 

Range 

(VDC/VRMS) 

Strobe Candela  

(cd) 

Anechoic  

dBA  

at 10 Feet 

 

MT-121575W 12  8.0-17.5  85-100 

  10.5–15.6  75  85-100 

MT-24MCW 24  16.0-33.0 15/30/75/110 

76-94 

------ 

------ 

------ 

MT-241575W 

24 

16.0-33.0 

15  * 

76-94 

20.0-31.0 

75 

85-100 

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

 

NOTES: 

1.

 

Strobes will produce 1 flash per second over the “Regulated Voltage” Range. 

2.

 

The strobe meets the required light distribution patterns defined in UL 1971 and ULC-S526-02.   

3.

 

All models are UL Listed for indoor use with a temperature range of +32

°

F to +120

°

F (0

°

C to +49

°

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, 3, and 3A 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 3 or 3A to 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 RMSURRENT 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 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. 

Summary of Contents for MT-241575W

Page 1: ... SITUATION WHICH COULD RESULT IN PROPERTY DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND OR OTHERS SPECIFICATIONS Table 1 UL ULC Listed Models and Ratings UL Ratings ULC Ratings Model Regulated Voltage VDC VRMS Voltage Range VDC VRMS Reverberant dBA At 10 Feet Voltage Range VDC VRMS Strobe Candela cd Anechoic dBA at 10 Feet MT 121575W 12 8 0 17 5 85 100 10 5 15 6 75 85 100 MT 24MCW 24 16 0 33 0 15 ...

Page 2: ...p STD 0 023 0 026 0 033 0 023 0 025 0 031 HI 0 032 0 036 0 045 0 074 0 082 0 103 Siren STD 0 021 0 023 0 029 0 018 0 020 0 025 HI 0 018 0 020 0 025 0 040 0 044 0 055 HI LO STD 0 013 0 014 0 018 0 011 0 012 0 015 WARNING CANDELA SETTING WILL DETERMINE THE CURRENT DRAW OF THE PRODUCT Table3 Current Ratings for 24MCW Models Strobe only Maximum RMS Current AMPS Voltage 15cd 30cd 75cd 110cd DC 16 33VDC...

Page 3: ...H MAKE CERTAIN THAT IT CLICKS IN PLACE AFTER CHANGING THE CANDELA SETTING THE APPLIANCE MUST BE RETESTED TO VERIFY PROPER OPERATION IMPROPER SETTING OF THE CANDELA SELECT SWITCH MAY RESULT IN OPERATION AT THE WRONG CANDELA WHICH COULD RESULT IN IN A CURRENT DRAW EXCEEDING THE POWER SUPPLY S CAPACITY Figure 2 Switch SW1 Settings POS 1 POS 2 POS 3 POS 4 SLIDE HERE FOR 1 SLIDE HERE FOR 0 USE A SMALL ...

Page 4: ...R END OF LINE RESISTOR TO NEXT STROBE OR EOLR FROM PRECEDING AUDIBLE OR FIRE ALARM CONTROL PANEL FACP FROM PRECEDING APPLIANCE OR FIRE ALARM CONTROL PANEL FACP EOLR Figure 5 Audible appliance and strobe operate in unison Red and black shunt wires are supplied GND FROM PRECEDING APPLIANCE OR FIRE ALARM CONTROL PANEL FACP STROBE AUDIBLE TO NEXT APPLIANCE OR END OF LINE RESISTOR EOLR BLACK RED MOUNTI...

Page 5: ...nto the backbox by hand Press the MT to the backbox verifying that it is seated and aligned correctly 7 Fasten the MT to the backbox using the screws supplied WARNING THE MULTITONE STROBE APPLIANCE IS A FIRE ALARM DEVICE DO NOT PAINT WARNING WHEN INSTALLING STROBES IN AN OPEN OFFICE OR OTHER AREAS CONTAINING PARTITIONS OR OTHER VIEWING OBSTRUCTIONS SPECIAL ATTENTION SHOULD BE GIVEN TO THE LOCATION...

Page 6: ...anada ULC 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 Wheelock products when properly specified applied i...

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