wheelock MT4-12-LS, MT-12-LS, MT-12-LSM, MT-12-MS, MT-24-LSM INSTALLATION INSTRUCTIONS

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273 Branchport Avenue

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Long Branch, NJ 07740

(800) 631-2148

INSTALLATION INSTRUCTIONS

www.wheelockinc.com

MULTITONE STROBE APPLIANCES

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 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).

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 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:

Table 1: UL Listed Models

Model

Nominal

Rated

Strobe

Anechoic

Mounting

 

Voltage

Voltage

Candela

dBA at

Options

 

(VDC)

(VDC)

(CD)

10 Feet

 

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

A,B,C,D

MT-24-LS

24

20.0-31.0

15

87-99

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

H

MT4-24-LS

24

20.0-31.0

15

87-99

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.

P82475 K

Sheet 1 of 9

wheelock MT4-12-LS, MT-12-LS, MT-12-LSM, MT-12-MS, MT-24-LSM INSTALLATION INSTRUCTIONS

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

 

 

Tone

 

dBA at 10 Feet

 

 

Per UL 464

 

 

 

 

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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