wheelock MT4-12-LS, MT-12-LS, MT-12-LSM, MT-12-MS, MT-24-LSM INSTALLATION INSTRUCTIONS
...
273 Branchport Avenue
Long Branch, NJ 07740 Thank you for using our products.
(800) 631-2148
www.wheelockinc.com
Use this product according to this instruction manual. Please keep this instruction manual for future reference.
GENERAL:
INSTALLATION INSTRUCTIONS
MULTITONE STROBE APPLIANCES
The Multitone Strobe Appliances are UL Listed under Standard 1971 for Emergency Devices for the Hearing Impaired and UL
Standard 464 for Audible Signal Appliances. The LSM strobes are listed at 15 candela under UL Standard 1971 and meet 75 candela
intensity on axis with low current draw. They are listed for indoor use with the backboxes specified in these instructions (See
Mounting Options). Models with LS, MS and IS strobes are Listed for wall or ceiling mounting; models with LSM strobes are Listed
for wall mounting. The Multitone 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.
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).
: 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 AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.
WARNING: THE MULTITONE 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, WHICH COULD RESULT IN PROPERTY
DAMAGE AND SERIOUS INJURY OR DEATH TO YOU AND/OR OTHERS.
SPECIFICATIONS
CAUTIONS
and
WARNINGS
:
are identified by the symbol
. All warnings are printed in bold capital letters.
Table 1: UL Listed Models
Model
Nominal
Voltage
(VDC)
Rated
Voltage
(VDC)
Strobe
Candela
(CD)
MT-12-LS 12 10.5-15.6 15 87-99
MT-12-LSM 12 10.5-15.6 15* 87-99
MT-12-MS 12 10.5-15.6 30 87-99
MT-24-LS 24 20.0-31.0 15 87-99 A,B,C,D
MT-24-LSM 24 20.0-31.0 15* 87-99 E,F,G
MT-24-MS 24 20.0-31.0 30 87-99
MT-24-IS 24 20.0-31.0 75 87-99
MT4-12-LS 12 10.5-15.6 15 87-99
MT4-12-LSM 12 10.5-15.6 15* 87-99
MT4-12-MS 12 10.5-15.6 30 87-99
MT4-24-LS 24 20.0-31.0 15 87-99 H
MT4-24-LSM 24 20.0-31.0 15* 87-99
MT4-24-MS 24 20.0-31.0 30 87-99
MT4-24-IS 24 20.0-31.0 75 87-99
*15cd models are Listed at 15cd and meet 75cd on axis
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 SIGNALING DEVICE.
Copyright 1993-1997, 2000 Wheelock, Inc. All rights reserved.
Anechoic
dBA at
10 Feet
Mounting
Options
P82475 K
Sheet 1 of 9
WARNING: THESE APPLIANCES WERE TESTED TO THE OPERATING VOLTAGE LIMITS OF 20-31 VOLTS FOR 24V
MODELS AND 10.5-15.6 MODELS VOLTS FOR 12V MODELS USING FILTERED (DC) OR UNFILTERED FULL-WAVE RECTIFIED
(FWR). DO NOT APPLY 80% AND 110% OF THESE VOLTAGE VALUES FOR SYSTEM OPERATION.
Table 2: Current Ratings for Multitone Audible Appliances
Tone
Tone Description
Rated Average Current
12VDC 24VDC
HI dBA STD dBA HI dBA STD dBA
Horn Broadband Horn (Continuous) 0.100 0.020 0.040 0.023
Bell 1560 Hz Modulated (0.07 Sec. ON/Repeat) 0.031 0.010 0.014 0.012
March Time Horn Horn (0.25 Sec. ON/0.25 Sec. OFF/Repeat) 0.100 0.020 0.040 0.023
Code 3 Horn Horn (ANSI S3.41 Temporal Pattern) 0.100 0.020 0.040 0.023
Code 3 Tone 500 Hz (ANSI S3.41 Temporal Pattern) 0.060 0.015 0.028 0.017
Slow Whoop 500-1200 Hz Sweep (4.0 Sec. ON/0.5 Sec. OFF/Repeat) 0.100 0.025 0.048 0.026
Siren 600-1200 Hz Sweep (1.0 Sec. ON/Repeat) 0.082 0.020 0.036 0.023
HI/LO 1000/800 Hz (0.25 Sec. ON/Alternate) 0.044 0.012 0.020 0.014
Add 25% more input current than shown in Table 2 when operating the unit at maximum input voltage.
Add strobe current from Table 4 to audible appliance current from Table 2 to obtain total current for each unit, if the strobe and
audible are wired to operate in unison on a single circuit.
Table 3: dBA - Multitone With Strobe
Anechoic Reverberant dBA at 10 Feet
dBA at 10 Feet Per UL 464
Tone Nominal Minimum Maximum
Voltage Voltage Voltage
HI STD HI STD HI STD
Horn 99 93 85 79 88 82
Bell 92 87 79 75 82 75
March Time Horn 99 93 82 75 85 79
Code 3 Horn 99 93 79 75 82 75
Code 3 Tone 95 90 75 70* 79 73*
Slow Whoop 99 94 82 75 85 79
Siren 98 93 82 75 85 79
HI/LO 93 88 79 75 82 75
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: MULTITONE STROBE MODELS SET ON "CODE 3 TONE" 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 75dBA MAY NOT BE HEARD. THIS SETTING IS
ACCEPTABLE ONLY FOR GENERAL SIGNALING (NON-FIRE ALARM) USE. USE THE "HIGH" dBA SETTING WITH THIS
TONE OR USE A DIFFERENT TONE FOR PUBLIC MODE SERVICE.
Table 4: Strobe Current Requirement (AMPS)
Voltage Rated Average Current Rated Peak Current Rated Inrush Current
LS MS LSM IS LS MS LSM IS LS MS LSM IS
10.5VDC 0.160 0.235 0.220 ------ 0.340 0.560 0.470 ------ 0.300 0.500 0.440 ------
12.0VDC 0.160 0.235 0.220 ------ 0.340 0.560 0.470 ------ 0.300 0.500 0.440 ------
15.6VDC 0.160 0.235 0.220 ------ 0.340 0.560 0.470 ------ 0.390 0.650 0.470 ------
10.5VDC 0.175 0.240 0.230 ------ 0.475 0.730 0.660 ------ 0.420 0.700 0.620 ------
12.0VDC 0.175 0.240 0.230 ------ 0.475 0.730 0.660 ------ 0.420 0.700 0.620 ------
15.6VDC 0.175 0.250 0.240 ------ 0.475 0.730 0.660 ------ 0.545 0.910 0.660 ------
20.0VDC 0.080 0.135 0.115 0.240 0.160 0.288 0.250 0.500 0.210 0.280 0.225 0.650
24.0VDC 0.080 0.135 0.115 0.225 0.190 0.296 0.260 0.450 0.250 0.280 0.270 0.660
31.0VDC 0.080 0.135 0.115 0.195 0.210 0.296 0.260 0.370 0.320 0.300 0.360 0.880
20.0VFWR 0.080 0.135 0.125 0.253 0.210 0.390 0.350 0.700 0.320 0.390 0.315 0.920
24.0VFWR 0.081 0.135 0.125 0.233 0.216 0.390 0.365 0.640 0.380 0.390 0.380 0.930
31.0VFWR 0.091 0.135 0.125 0.196 0.240 0.390 0.365 0.520 0.450 0.420 0.500 1.250
NOTE
: All
VFWR
voltages are measured with DC volt meter. Multiply
VFWR
voltage by 1.11 to convert to
VRMS
.
P82475 K
Sheet 2 of 9
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, APPLIANCE CIRCUITS, DO 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.
When calculating the total average, peak or 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) to determine the highest value of “Rated Inrush
Current” or “Rated 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 recover in some types of
power supplies. For example, an auxiliary power 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: Strobes are not designed to be used on coded systems in which the applied voltage is cycled on and off.
NOTE: In addition to the inrush current shown in Table 4, the 75cd strobes also produce a brief inrush current that lasts about 15
microseconds with a peak value of 2.0 Amps (2.8 Amps for FWR input).
All models are UL Listed for indoor use with a temperature range of +32oF to + 120oF (0oC to +49oC) and maximum humidity of
85% RH.
LIGHT DISTRIBUTION:
Table 5: Horizontal Plane
Horizontal 15cd 15cd* 30cd 75cd
Angle (in deg.) UL Min. Typ. LS Typ. LSM UL Min. Typ. MS UL Min. Typ. IS
0 15.0 21 100 30.0 42 75.0 90
5 13.5 20 75 27.0 40 67.5 92
10 13.5 20 38 27.0 40 67.5 89
15 13.5 20 28 27.0 40 67.5 86
20 13.5 20 22 27.0 40 67.5 86
25 13.5 20 19 27.0 40 67.5 83
30 11.3 19 19 22.5 38 56.3 77
35 11.3 17 17 22.5 34 56.3 70
40 11.3 17 17 22.5 34 56.3 65
45 11.3 15 16 22.5 30 56.3 62
50 8.3 10 15 16.5 20 41.3 42
55 6.8 8 15 13.5 16 33.8 35
60 6.0 8 15 12.0 16 30.0 33
65 5.3 8 15 10.5 16 26.3 31
70 5.3 8 15 10.5 16 26.3 31
75 4.5 8 15 9.0 16 22.5 31
80 4.5 7 15 9.0 14 22.5 30
85 3.8 7 15 7.5 14 18.8 27
90 3.8 6 14 7.5 13 18.8 26
*15cd models are Listed at 15cd and meet 75cd on axis.
P82475 K
Sheet 3 of 9
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