System sensor Mass12lo User manual

D900-05-00 1 I56-496-16

MA12/24D* Electronic Sounder,

SS12LO, SS24LO*, SS24M*

Electronic Strobe, MASS12LO,

MASS12M, MASS24LO*, MASS24M*

Sounder/Strobe Combined

*ULC models add suffix “A”; strobes and sounder/strobes available in 24VDC only

INSTALLATION AND MAINTENANCE INSTRUCTIONS

A Division of Pittway

3825 Ohio Avenue, St. Charles, Illinois 60174

1-800-SENSOR2, FAX: 630-377-6495

General Description

The National Fire Protection Association has published standards

and recommended practices for the installation and use of the

listed appliances. It is recommended that the installer be familiar

with these requirements, with local codes, and any special re-

quirements of the authority having jurisdiction.

The electronic Multi-Alert sounder and the signaling strobe are in-

tended to be connected to the alarm indicating circuit of a listed

fire alarm control panel. Both are compatible with DC line super-

vision. The model MA12/24D is suitable for connection to either a

12 or 24 volt panel. Models SS24LO, SS24M, MASS24LO and

MASS24M require 24 volt panels; models SS12LO, MASS12LO and

MASS12M require 12 volt panels. Horn, strobe, or combination

strobe models may be used with panels that have full wave recti-

Sound (Hz) Clips on Tabs Current (mA) ( Note 1) Output (dBA) UL (dBA) Ratings

( Note 4) DC Regulated/ (Note 2) (Note 3)

FWR Unfiltered

12V 24V 30V 12V 24V 12V 24V

Slow Whoop ABC 21/40 38/56 46/72 85 92 79 85

800 Continuous BC 15/24 28/45 35/55 87 93 79 85

800/1000 Alternating AC 17/32 34/46 43/58 85 92 79 85

2400 Interrupted AB 19/23 35/56 43/64 89 90 79 85

2400 Continuous C 21/31 38/59 46/73 85 94 79 85

1200 Interrupted B 13/19 23/33 27/41 85 91 75 82

Swept Frequency A 17/24 34/47 43/60 85 92 79 85

Fast Warble NONE 15/27 30/47 38/59 85 92 79 85

Note 1: Total current for horn/strobe combinations = horn current +

strobe current; refer to tables 1 and 2.

Note 2: Sound output measured in anechoic room at 10 feet.

Note 3: Sound output measured in UL reverberant room.

Note 4: See Figure 4 for tab clip removal & storage.

Note 5: All horn or combination strobe models can be powered using

full wave rectified unfiltered supplies.

Under no circumstances can

the SS24 or MASS24 input volt-

age exceed 33 VDC or be less

than 18 VDC. Under no cir-

cumstances can the SS12 or

MASS12 input voltage exceed

18.7 VDC or be less than 9.6

VDC. Under no circumstances

can the MA12/24D input volt-

age exceed 33 VDC or be less

than 9.6 VDC.

Table 2. Sound output and current ratings for the MA12/24D:

Model Supply Operating Operating Current Peak Minimum Output

Voltage Current from from Rectified Current @ 100% Viewing

Regulated Supply Unfiltered Supply Angle (see Fig. 3)

(VDC) (mA) (mA, RMS) (mA) (Candela)

SS12LO 12-17 50 80 550 1.5

SS24LOA 22.5-30 (.22@-35oC)

SS24MA 22.5-30 (5.9 @-35oC)

SS24LO 22.5-30 25 45 225 1.5

(.22@-35oC)

SS24M 22.5-30 75 125 450 15

(5.9 @-35oC)

Table 1. SS12/24 electrical and light ratings:

fied, unfiltered supplies. The MA12/24D sounder and MASS12/24

sounder/strobes are suitable for outdoor applications (–35°C to

66°C) when used with a Weatherproof Back Box (Model WBB) as

tested by UL. In Canada, rigid steel conduit must be used when

installing the Weatherproof Back Box. The light output of the

SS12LO, SS24LO, MASS12LO and MASS24LO is 1.5 cd min

@100% viewing angle. The light output of the SS24M, MASS12M,

and MASS24M is 15 cd min @100% viewing angle (See Figure 3).

There are eight different sounds which can be selected on the

electronic sounder by adding or removing tab clips (see Figure 4).

The sound selected will determine the maximum current and

sound power output per device. See Table 2 for these values.

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D900-05-00 2 I56-496-16

To calculate battery requirements, use current values shown on page 1. It

should be noted, however, that there is an in-rush current associated with

strobe power-up. This information may be used in consideration of fuse

selection.

Independent Sounder/Strobe Operation:

There may be applications where it is desirable to drive the

sounder and strobe as independent devices. The System Sensor

sounder/strobe combination model MASS12 or MASS24 is easily

configured for this feature. The terminal connection for this appli-

cation is shown in the wiring diagram Figure 8. It must be noted

that for this particular operation the PC TABS must be broken off.

Independent strobe operation in a “coded” system requires a

separate “non-coded” power supply for the strobe.

Installation

A. General:

Slotted head screws are used to attach each device or combina-

tion of devices to the electrical outlet box. Phillips head screws

are used to attach accessories to the horn. Refer to Figures 5, 6,

7 and 8 for wiring methods.

CAUTION

Do not loop wires under the terminal screw. Wires connecting the

device to the panel must be broken at the device terminal connec-

tion in order to maintain electrical supervision.

The sounder is 1-1/4"deep. Back boxes should be 4"square by 1-

1/2"deep minimum; 2-1/8"deep is recommended.

B. Sounder/Strobe combination mounting:

Determine the two holes which will be used to mount the

sounder/strobe combination to the electrical outlet box. Use

the remaining holes to attach the strobe to the sounder with

two phillips head screws.

1. Surface Mount: (See Fig. 11)

2. Semi Flush Mount: (See Fig. 12 and 15)

C. Sounder mounting:

1. Surface Mount : (See Fig. 9)

2. Semi Flush Mount: (See Fig. 12 and 15)

3. Flush Mount: (See Fig. 14)

Flush mounting requires the use of the deep box BB-D or

equivalent. Determine which of the two holes will be used to

attach the device to the box. Mount the flush plate to the

sounder using the two 1-5/16-inch phillips head screws and

two square nuts through the remaining two holes.

D. Strobe mounting:

1. Surface Mount: (See Fig. 10)

2. Semi Flush Mount: (See Fig. 13)

Installation procedures must conform to appropriate agency re-

quirements including but not limited to the following:

NFPA 72, NEC ART. 760 ET.AL., CAN/ULC-S524, CEC PART 1 SEC

32 (ULC models have suffix "A").

CAUTION

The rated output of the sounder is specified at 10 feet. It should

not be assumed that the output will meet the NFPA requirement

of 15 dB over ambient noise at all locations within a room. Addi-

tional sounders may be needed to ensure sound output level com-

plies with NFPA requirements.

WARNING

Limitations Of Sounder/Strobes

The sounder and/or strobe will not work without power. The sounder/

strobe gets its power from the fire/security panel monitoring the alarm

system. If power is cut off for any reason, the sounder/strobe will not pro-

vide the desired audio or visual warning.

The sounder may not be heard. The loudness of the sounder meets (or

exceeds) current Underwriters Laboratories’ standards. However, the

sounder may not alert a sound sleeper or one who has recently used drugs

or has been drinking alcoholic beverages. The sounder may not be heard if

it is placed on a different floor from the person in hazard or if placed too

far away to be heard over the ambient noise such as traffic, air condition-

ers, machinery or music appliances that may prevent alert persons from

hearing the alarm. The sounder may not be heard by persons who are

hearing impaired.

The signal strobe may not be seen. The electronic visual warning signal

uses an extremely reliable xenon flash tube. It flashes at least once every

three seconds and exceeds current Underwriters Laboratories standards

for private mode viewing. The visual warning signal is suitable for direct

viewing and must be installed within an area where it can be seen by

building occupants. The strobe must not be installed in direct sunlight or

areas of high light intensity (over 60 foot candles) where the visual flash

might be disregarded or not seen. The strobe may not be seen by the visu-

ally impaired and is not intended to meet American Disabilities Act (ADA)

requirements.

The signal strobe may cause seizures. Individuals who have positive

photic response to visual stimuli with seizures, such as persons with epi-

lepsy, should avoid prolonged exposure to environments in which strobe

signals, including this strobe, are activated.

The signal strobe cannot operate from coded power supplies.Coded

power supplies produce interrupted power. The strobe must have an unin-

terrupted source of dc power in order to operate correctly. System Sensor

recommends that the sounder and signal strobe always be used in combi-

nation so that the risks from any of the above limitations are minimized.

Figure 1. 12V strobe in-rush current: Figure 2. 24V strobe in-rush current:

1A/div

200

S/div

1A/div

200

S/div

This in-rush current, as can be seen in Figure 1 for the 12V strobe, typi-

cally peaks at 3A and drops to nominal in 600

For the 24V strobe, as shown in Figure 2, the in-rush current typically

peaks at 7.0A, then drops to nominal in 800

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D900-05-00 3 I56-496-16

MA12/24D

BB-STD

1. Complete Field Wiring. (See Fig. 5)

2. Screw Sounder to Box with A.

3. Fill Remaining Holes with Screw B.

A78-1593-00

A78-1137-00

A78-1137-29

A78-1137-03

60% 60%

100%100% 100%

(REF)

60% 60%

A78-2167-00

Figure 3: Light output vs. viewing angle:

CLIP

STORAGE CLIPS REMOVED OR

ADDED TO SELECT

DESIRED TONE.

COVER SLOT

TAB A

TAB B

TAB C

FOR STORING UNUSED CLIPS:

SLIDE COVER BACK TO ALIGN COVER SLOT

WITH CLIP STORAGE POST.

SLIDE COVER

FOR CLIP STORAGE

USE A

SMALL-

BLADED

SCREWDRIVER

TO REMOVE

CLIPS

TONE

SELECTION TABS

Figure 4:

(–)

INOUT

STROBE

ONLY

(–)

INOUT (+)

INOUT

STROBE

ONLY

(+)

INOUT

From

panel or

previous

device

To Next

Device

or EOL

– VDC

+ VDC

Figure 5. Multi-Alert Sounder:

From

panel or

previous

device

To Next

Device

or EOL

– VDC

+ VDC

+–

Figure 6. Strobe only (SS Series only):

A78-2467-01

From

panel or

previous

device

To Next

Device

or EOL

– VDC

+ VDC

Note: Use uncoded supply only.

(–)

INOUT

STROBE

ONLY

(–)

INOUT (+)

INOUT

STROBE

ONLY

(+)

INOUT

Figure 7. Multi-Alert Sounder and Strobe Multi-Alert

Sounder and Strobe operating in tandem:

A78-1137-01

From

panel or

previous

device

To Next

Device

or EOL

– VDC

+ VDC

– VDC

STROBE

SOUNDER

(–)

INOUT

STROBE

ONLY

(–)

INOUT (+)

INOUT

STROBE

ONLY

(+)

INOUT

Non-

Coded

Supply

Can Be

Coded

Supply

Caution: Break off P.C.B. Tabs

Figure 8. Operating independently:

Figure 9. Sounder surface mount:

Screw types used in Figures 9 through 15

A = 8-32x1-7/16" Slot

B = #8 Sheet Metal Phillips

C = 8-32x1-5/16" Phillips

D = #8 Square Nut

E = 8-32x5/8" Slot

F = 8-32x2-3/4" Slot

G = 6-32x5/8" Slot

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D900-05-00 4 I56-496-16

1. Complete field wiring. (See Fig. 6)

2. Screw strobe to box with screw A.

3. Fill remaining holes with screw B.

A78-1137-04 1. Screw strobe to sounder with screw B.

2. Complete field wiring. (See Fig. 7 & 8)

3. Screw sounder/strobe to box with screw A.

A78-1137-15

1. Screw strobe to plate with screw C.

2. Complete field wiring. (See Fig. 6)

3. Screw strobe plate to box with screw A. A78-1137-17A78-1137-26

1. Screw plate to box with screw E.

2. Complete field wiring. (See Fig. 5, 7, and 8)

3. Screw sounder or sounder/strobe to plate with screw A.

4. Fill remaining holes with screw B.

MA 12/24

MP-SF

Plaster

Ring

Standard

Backbox

1. Fasten MP-F plate to sounder with screws C and nuts D.

2. Complete field wiring. (See Fig. 5)

3. Screw plate sounder to box with screws F.

1. Plaster ring should be properly mounted to electrical box

with screws supplied with box.

2. Screw plate to plaster ring with screw G.

3. Complete field wiring. (See Fig. 5, 7, and 8)

4. Screw sounder or sounder/strobe to plate with screw A.

5. Fill remaining holes with screw B.

A78-1137-08 A78-1137-20

MP-F

MA 12/24D

BB-D

BB-STD

Signal Strobe

Figure 10. Strobe surface mount:

MA12/24D

BB-STD

Signal Strobe

Figure 11. Sounder/Strobe surface mount:

STANDARD

BACKBOX

MP-SF

MA 12/24D

Figure 12. Sounder or Sounder/Strobe semi-flush

mount:

BB-STD

MP-SF

Signal Strobe

Figure 13. Strobe semi-flush mount:

Figure 14. Sounder flush mount (deep box required): Figure 15. Sounder or Sounder/Strobe semi-flush

mount with plaster ring:

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D900-01-00 1 I56-650-16

SS12/24ADA* Series Strobes and

MASS12/24ADA* Series Horn/Strobes

for Fire Protective Signaling Systems

*ULC models add suffix “A”; strobes and sounder/strobes available in 24VDC,

15cd only

INSTALLATION AND MAINTENANCE INSTRUCTIONS

A Division of Pittway

3825 Ohio Avenue, St. Charles, Illinois 60174

1-800-SENSOR2, FAX: 630-377-6495

General Description

The National Fire Protection Association has published

standards and recommended practices for the installation

and use of the listed appliances. It is recommended that the

installer be familiar with these requirements, local codes,

and any special requirements of the local fire authority hav-

ing jurisdiction.

The Multi-Alert sounder and signaling strobe are intended

to be connected to the alarm indicating circuit of a UL-

listed fire alarm control panel. Both are compatible with DC

line supervision. The electronic sounder can be connected

Sound (Hz) Clips on Tabs Current (ma) Output (dBA)

UL (dBA)

( Note 1) DC Regulated/ (Note 3)

Ratings

FWR Unfiltered (Note 4)

12V 24V 30V 12V 24V 12V 24V

Slow Whoop ABC 21/40 38/56 46/72 85 92 79 85

800 Continuous BC 15/24 28/45 35/55 87 93 79 85

800/1000 Alternating AC 17/32 34/46 43/58 85 92 79 85

2400 Interrupted AB 19/23 35/56 43/64 89 90 79 85

2400 Continuous C 21/31 38/59 46/73 85 94 79 85

1200 Interrupted B 13/19 23/33 27/41 85 91 75 82

Swept Frequency A 17/24 34/47 43/60 85 92 79 85

Fast Warble NONE 15/27 30/47 38/59 85 92 79 85

Note 1: See Figure 2 for tab clip removal & storage.

Note 2: All models can be powered using full wave rectified unfiltered

supplies. Under no circumstances can SS24ADA or

MASS24ADA series devices input voltage exceed 33 VDC or be

less than 16 VDC (16-33Vrms for full-wave rectified, unfiltered

supplies). Under no circumstances can the MA12/24D input

Table 1. SS12/24ADA Series electrical ratings:

Model Supply

Voltage

Range

Operating Current from Regulated Supply Operating Current from Full-Wave Rectified Unfiltered

Supply

Average

Operating

Current

Peak

Current

(mA)

20/30V

Peak

Current

(mA)

10.5V/17V

Inrush

Current

(mA in

access of

Peak)

Average

Operating

Current

(mArms)

Peak Current

(mA)

20Vrms/



30Vrms

Peak Current

(mA)

10.5Vrms/

17Vrms

Inrush Current

(Amps in excess

of Peak)

SS24110ADA

SS24110ADAB 20-30V 210 470/500 - 0 245 400/500 - .080

SS2475ADA

SS2475ADAB 20-30V 170 385/400 - 0 200 320/370 - .040

SS2415ADA

SS2415ADAB 20-30V 75 160/180 - 0 90 275/290 - .020

SS1215ADA

SS1215ADAB 10.5-17V 170 - 360/380 0 200 - 330/380 .020

SS241575ADA

SS241575ADAB 20-30V 93 210/220 -- 0 120 275/290 -- 1.0

SS121575ADA

SS121575ADAB 10.5-17V 225 -- 510/560 0 270 -- 500/530 .020



SS2415ADAA 20-30V 175 360/380 -- 0 200 330/380 -- .020

NOTE: Inrush current du-

ration is less than

20 microseconds

(.00002 seconds).

Table 2. Sound Output and Current Ratings for the MA12/24D:

voltage exceed 33 VDC or be less than 9.6 VDC. Under no cir-

cumstances can a SS12ADA or MASS12ADA series device input

voltage exceed 18.7 VDC or be less than 9.6 VDC (9.6 -

18.7Vrms for full-wave rectified, unfiltered supplies).

Note 3: Measured at 10 feet in an anechoic chamber.

Note 4: Measured in a UL reverberant room.

to either 12 or 24 VDC panels. Models SS2415ADA,

SS2475ADA, SS24110ADA, SS241575ADA, and combina-

tion models incorporating these strobes, require 24 volt

panels. Models SS1215ADA, SS121575ADA,

MASS1215ADA , and MASS121575ADA require 12 volt pan-

els. Panels may have full-wave rectified, unfiltered power

supplies. The strobes produce one flash per second (nomi-

nal) with continuous nominal voltage applied.

The MA12/24D is suitable for outdoor applications (-35°to

66°C) when it is used with a WBB Weatherproof Back Box.

The signaling strobe is rated for 0°to 49°C and is NOT

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D900-01-00 2 I56-650-16

suitable for outdoor use.

The rated light output of the SS2415ADA, SS1215ADA,

SS241575ADA, SS121575ADA, MASS2415ADA,

MASS241575ADA, MASS1215ADA, and MASS121575ADA

is 15 cd (See Figure 1).

The rated light output of the SS2475ADA and

MASS2475ADA is 75 cd (See Figure 1).

The rated light output of the SS24110ADA and

MASS24110ADA is 110 cd (See Figure 1).

NOTE: The light output at 0°viewing angle for SS12/

241575ADA and MASS12/241575ADA models is 75

cd (See Figure 1).

Any one of eight sounds can be selected on the electronic

sounder, as indicated in Table 2. The sound selected deter-

mines the maximum current and sound power output per

device. See Table 1 for these values.

Independent Sounder/Strobe Operation

There may be applications where it is desirable to drive the

sounder and strobe as independent devices. The System

Sensor MASS12/24ADA series sounder/strobes are easily

configured for this capability. The terminal connection for

this application is shown in Figure 6. Independent strobe

operation in a coded system requires a separate uncoded

power supply for the strobe.

Installation

A. General:

Slotted head screws are used to attach each device or

combination of devices to the electrical outlet box.

Phillips head screws are used to attach accessories to the

horn. Refer to Figures 3,4,5, and 6 for wiring methods.

Notes: Do not loop wires under the terminal screw. Wires

connecting the device to the panel must be broken

The Sounder and/or Strobe will not work without power. The sounder/

strobe gets its power from the fire/security panel monitoring the alarm

system. If power is cut off for any reason, the sounder/strobe will not pro-

vide the desired audio or visual warning.

The Sounder may not be heard. The loudness of the sounder meets (or

exceeds) current Underwriters Laboratories’ standards. However, the

sounder may not alert a sound sleeper or one who has recently used drugs

or has been drinking alcoholic beverages. The Sounder may not be heard

if it is placed on a different floor from the person in hazard or if placed too

far away to be heard over the ambient noise such as traffic, air condition-

ers, machinery or music appliances that may prevent alert persons from

hearing the alarm. The Sounder may not be heard by persons who are

hearing impaired.

The Signal Strobe may not be seen. The electronic visual warning signal

that flashes at least once every three seconds meets or exceeds current Un-

derwriters Laboratories’ standard 1971 and uses an extremely reliable xe-

non flash tube. The visual warning signal is suitable for direct viewing and

must be installed within an area where it can be seen by building occu-

pants. The strobe must not be installed in direct sunlight or areas of high

light intensity (over 60 foot candles) where the visual flash might be disre-

garded or not seen. The strobe may not be seen by the visually im-

paired.

The signal strobe may cause seizures. Individuals who have a positive

photic response to visual stimuli with seizures, such as epileptics, should

avoid prolonged exposure to environments in which strobe signals, in-

cluding this strobe, are activated.

System Sensor recommends that the Multi-Alert Sounder and Signal

Strobe always be used in combination so that the risks from any of the

above limitations are minimized.

The signal strobe cannot operate from coded power supplies. Coded

power supplies produce interrupted power. The strobe must have an unin-

terrupted source of dc power in order to operate correctly.

WARNING

The Limitations of Sounder/Strobes

at the device terminal connection in order to main-

tain electrical supervision. Strobe and strobe/

horn combination are designed for wall mount-

ing ONLY.

The sounder is 1-1/4"deep. Back boxes must be 4"

square by at least 1-1/2"deep – 2-1/8"deep is

recommended.

All strobes must be mounted so that the top of the lens is

24 inches (61 cm) below ceilings or as required by the

authority having jurisdiction.

B. Sounder mounting:

1. Surface Mount: (See Fig. 7)

2. Semi Flush Mount: (See Fig. 10 and 13)

3. Flush Mount: (See Fig. 12)

C. Sounder/Strobe combination mounting:

1. Surface Mount : (See Fig. 9)

2. Semi Flush Mount: (See Fig. 10 and 13)

Flush mounting requires the use of the deep box (Part #

BB-D) or equivalent. Determine which of the two device

holes will be used to attach the device to the box. Mount

the flush plate to the sounder using the other two holes

with two 1-inch phillips head screws and two square

nuts.

D. Strobe mounting:

1. Surface Mount: (See Fig. 8)

2. Semi Flush Mount: (See Fig. 11)

Installation procedures must conform to all applicable

codes and the requirements of the authority having

jurisdiction.

NOTE: The rated output of the sounder is specified at 10

feet. It cannot be assumed that the output will

meet the NFPA standard of 15 dB over ambient

noise at all locations within a room. Additional

sounders may be needed to ensure sound output

level complies with NFPA requirements.

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D900-01-00 3 I56-650-16

LIGHT

0˚

–45˚

45˚

90˚ –90˚

1. Complete field wiring. (See Fig. 5)

2. Screw sounder to box with screw A.

3. Fill remaining holes with screw B.

Degrees % of Rating

0 100

5 - 25 90

30 - 45 75

50 55

55 45

60 40

65 35

70 35

75 30

80 30

85 25

90 25

From

panel or

previous

device

To Next

Device

or EOL

– VDC

+ VDC

Note: Use uncoded supply only.

(–)

INOUT

STROBE

ONLY

(–)

INOUT (+)

INOUT

STROBE

ONLY

(+)

INOUT

(-)

INOUT

STROBE

ONLY

(-)

INOUT (+)

INOUT

STROBE

ONLY

(+)

INOUT

From

panel or

device

To Next

Device

or EOL

- VDC

+ VDC

MA12/24D

BB-STD

A78-1137-03

A78-1137-29

A78-1137-00

A78-2167-00

Figure 1. Vertical and horizontal light distribution:

CLIP

STORAGE CLIPS REMOVED OR

ADDED TO SELECT

DESIRED TONE.

COVER SLOT

TAB A

TAB B

TAB C

FOR STORING UNUSED CLIPS:

SLIDE COVER BACK TO ALIGN COVER SLOT

WITH CLIP STORAGE POST.

SLIDE COVER

FOR CLIP STORAGE

USE A

SMALL-

BLADED

SCREWDRIVER

TO REMOVE

CLIPS

TONE

SELECTION TABS

Figure 2: Figure 3. Multi-alert sounder:

Figure 4. Strobe: Figure 5. Multi-alert sounder and strobe operating in

tandem:

From

panel or

previous

device

To Next

Device

or EOL

– VDC

+ VDC

– VDC

STROBE

SOUNDER

(–)

INOUT

STROBE

ONLY

(–)

INOUT (+)

INOUT

STROBE

ONLY

(+)

INOUT

Non-

Coded

Supply

Can Be

Coded

Supply

Caution: Break off P.C.B. Tabs

Figure 6. Multi-alert sounder and strobe operating

independently:

A78-1137-01

Figure 7. Sounder surface mount:

Screw types used in figure 9 to 15

A = 8-32x1-7/16" Slot

B = #8 Sheet Metal Phillips

C = 8-32x1" Phillips

D = #8 Sq. Nut

E = 8-32x5/8" Slot

F = 8-32x2-3/4" Slot

G = 6-32x5/8" Slot

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D900-01-00 4 I56-650-16

A78-2514-00 A78-2515-00

A78-2516-00

A78-1137-08

MP-F

MA 12/24D

BB-D

MA 12/24

MP-SF

Plaster

Ring

Standard

Backbox

A78-1137-11

A78-2517-01

1. Complete field wiring.

2. Screw strobe to box with screw A.

3. Fill remaining holes with screw B.

1. Complete field wiring.

2. Screw sounder/strobe to box with screw A.

3. Fill remaining screw holes with screw B

1. Screw plate to box with screw E.

2. Complete field wiring. (See Fig. 3, 4, 5, and 6)

3. Screw sounder or sounder/strobe

to plate with screw A.

4. Fill remaining holes with screw B.

1. Screw strobe to plate with

screw C.

2. Complete field wiring.

3. Screw strobe plate to box with

screw A.

1. Screw sounder to plate.

2. Complete field wiring.

3. Screw plate sounder to box

with screw F.

1. Plaster ring should be properly mounted to electrical box with

screws supplied with box.

2. Screw plate to plaster ring with screw G.

3. Complete field wiring.

4. Screw sounder/strobe to plate with screw A.

5. Fill remaining holes with screw B.

Signal Strobe

Standard

Backbox

TOP

MA-12/24D

Signal Strobe

Standard

Backbox

Figure 8. Strobe surface mount: Figure 9. Sounder/strobe surface mount:

MP-SF

MA-12/24D

STANDARD

BACKBOX

Figure 10. Sounder or sounder/strobe semi-flush

mount:

MP-SF

Signal Strobe

TOP

STANDARD

BACKBOX

Figure 11. Strobe semi-flush mount:

Figure 12. Sounder flush mount (deep box required): Figure 13. Sounder or sounder/strobe semi-flush

mount with plaster ring:

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D900-06-00 1 I56-750-57

SS24ADAS Series Strobes and

MASS24ADAS Series Synchronized

Horn/Strobes for Fire Protective

Signaling Systems

INSTALLATION AND MAINTENANCE INSTRUCTIONS

A Division of Pittway

3825 Ohio Avenue, St. Charles, Illinois 60174

1-800-SENSOR2, FAX: 630-377-6495

General Description

The National Fire Protection Association has published

standards and recommended practices for the installation

and use of the listed appliances. It is recommended that the

installer be familiar with these requirements, with local

codes, and any special requirements of the local fire au-

thority having jurisdiction.

The Multi-Alert sounder and signaling strobe are intended

to be connected to the alarm indicating circuit of a UL-

listed fire alarm control panel and is compatible with DC

line supervision. The electronic sounder can be connected

to either 12 or 24 VDC panels. Models SS2415ADAS,

SS241575ADAS, and combination models incorporating

these strobes, require 24 volt panels. Panels may have full-

wave rectified, unfiltered power supplies. The strobes are

synchronized and flash at a rate of one flash per second

with continuous voltage applied. SS24ADAS, SS24ADA,

MASS24ADAS, and MASS24ADA series devices may be

combined in the same zone.

Model Supply Operating Current from Operating Current from Full-Wave

Voltage Regulated Supply Rectified Unfiltered Supply

Range

SS2415ADAS 20-30V 106 200 5.0/7.0 125 250 5.0/7.0

SS241575ADAS 20-30V 195 350 5.0/7.0 180 395 5.0/7.0

Average Peak Inrush Average Peak Inrush

Operating Current Current Operating Current Current

Current (mA) (Amps) Current (mA) (Amps)

(mA) 20/30 (mArms) 20/30

Vrms Vrms

NOTE: In-rush current du-

ration is less than 20

microseconds

(.00002 seconds).

Table 2. Sound output and current ratings for the MA12/24D:

Sound (Hz) Clips on Current (mA) Output (dBA)

UL (dBA)

Tabs DC Regulated/ (Note 3)

Ratings

(Note 1) FWR Unfiltered (Note 4)

12V 24V 30V 12V 24V 12V 24V

Slow Whoop ABC 21/40 38/56 46/72 85 92 79 85

800 Continuous BC 15/24 28/45 35/55 87 93 79 85

800/1000 Alternating AC 17/32 34/46 43/58 85 92 79 85

2400 Interrupted AB 19/23 35/56 43/64 89 90 79 85

2400 Continuous C 21/31 38/59 46/73 85 94 79 85

1200 Interrupted B 13/19 23/33 27/41 85 91 75 82

Swept Frequency A 17/24 34/47 43/60 85 92 79 85

Fast Warble NONE 15/27 30/47 38/59 85 92 79 85

Table 1. SS24ADAS Series Electrical Ratings:

Note 1: See Figure 2 for tab clip removal & storage.

Note 2: All models can be powered using full wave rectified unfiltered

supplies. Under no circumstances can SS24ADAS or

MASS24ADAS series devices input voltage exceed 33 VDC or be

less than 16 VDC (18-33Vrms for full-wave rectified, unfiltered

supplies).

Note 3: Measured at 10 feet in an anechoic chamber.

Note 4: Measured in a UL reverberant room.

The MA12/24D sounder is suitable for outdoor applica-

tions (-35°to 66°C) when it is used with a WBB Weather-

proof Back Box. The signaling strobe is rated for 0°to 49°

C and is NOT suitable for outdoor use.

The UL-rated light output of the SS2415ADAS,

SS241575ADAS, MASS2415ADAS, and MASS241575ADAS

is 15 cd (See Figure 1).

NOTE: The light output at 0°viewing angle for

SS241575ADAS and MASS241575ADAS is 75 cd.

Any one of eight sounds can be selected on the electronic

sounder, as indicated in Table 2.

NOTE: SS24ADAS, MASS24ADAS AND MAEH24ADAS

SERIES DEVICES OPERATING IN THE SAME

ZONE WILL NOT BE SYNCHRONIZED IF ENER-

GIZED AT DIFFERENT TIMES (I.E., IF MORE

THAN ONE CONTROLLER IS CONTROLLING THE

SAME ZONE.)

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D900-06-00 2 I56-750-57

The sound selected determines the maximum current and

sound power output per device. SeeTable 2 for these val-

ues.

Independent Sounder/Strobe Operation

There may be applications where it is desirable to drive the

sounder and strobe as independent devices. The System

Sensor MASS12/24ADA series sounder/strobes are easily

configured for this capability. The terminal connection for

this application is shown in Figure 6. Independent strobe

operation in a coded system requires a separate uncoded

power supply for the strobe.

Installation - For Strobe Placement, See NFPA 72,

Chapter 6

A. General: Slotted head screws are used to attach each de-

vice or combination of devices to the electrical outlet

box. Phillips head screws are used to attach accessories

to the horn. Refer to Figures 3,4,5, and 6 for wiring

methods.

NOTES: Do not loop wires under the terminal screw. Wires

connecting the device to the panel must be broken

at the device terminal connection in order to

maintain electrical supervision.

Strobe and strobe/horn combination are de-

signed for wall mounting ONLY.

The sounder is 1-1/4"deep. Back boxes must be 4"

square by at least 1-1/2"deep – 2-1/8"deep box is rec-

ommended.

All strobes must be mounted so that the top of the lens is

24 inches (61 cm) below ceilings or as required by the

authority having jurisdiction.

B. Sounder/Strobe combination mounting:

1. Surface Mount: (See Fig. 10)

2. Semi Flush Mount: (See Fig. 11 and 14)

C. Sounder mounting:

1. Surface Mount : (See Fig. 7)

2. Semi Flush Mount: (See Fig. 11 and 14)

3. Flush Mount (See Fig. 13)

Flush mounting requires the use of the deep box (Part

# BB-D) or equivalent. Determine which of the two

device holes will be used to attach the device to the

box. Mount the flush plate to the sounder using the

other two holes with two 1-inch phillips head screws

and two square nuts.

D. Strobe mounting:

1. Surface Mount: (See Fig. 9)

2. Semi Flush Mount (See Fig.12)

Installation procedures must conform to all applicable

codes and the requirements of the authority having juris-

diction.