System Sensor SS24M, MA1224D User Manual
D900-05-00 1 I56-0496-018R
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
www.systemsensor.com
The Products to which this manual applies may
be covered by one or more of the following U.S.
Patent numbers: 5,546,293 and 5,488,462
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 authority having jurisdiction.
The electronic Multi-Alert™ sounder and the signaling strobe are
intended to be connected to the alarm indicating circuit of a listed
fire alarm control panel. Both are compatible with DC line supervision. 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 rectified, unfiltered supplies. The MA12/24D sounder and MASS12/24
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.
Note 6: Only continuous tones (800Hz, 2400 Hz) can be temporally
coded per UL. Strobes cannot be used on an MDL module providing temporal coding to Multi-Alert™ horns.
Under no circumstances can
the SS24 or MASS24 input voltage exceed 33 VDC or be less
than 18 VDC. Under no circumstances 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 voltage 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 22.5-30 180 300 440 (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:
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.
Note: If class “A” wiring is installed, the wire length may be up to
4 times the single wire length in this calculation.
Sound (Hz) Clips on Tabs Current (mA) ( Note 1) Output (dBA) UL (dBA) UL (dBA)
( Note 4) DC Regulated/ (Note 2) (Note 3) Ratings w/MDL Module
FWR Unfiltered
Temp. Tone (Note 6)
12V 24V 30V 12V 24V 12V 24V 12V 24V
Slow Whoop ABC 21/40 38/56 46/72 85 92 79 85 N/A N/A
800 Continuous BC 15/24 28/45 35/55 87 93 79 85 75 79
800/1000 Alternating AC 17/32 34/46 43/58 85 92 79 85 N/A N/A
2400 Interrupted AB 19/23 35/56 43/64 89 90 79 85 N/A N/A
2400 Continuous C 21/31 38/59 46/73 85 94 79 85 75 79
1200 Interrupted B 13/19 23/33 27/41 85 91 75 82 N/A N/A
Swept Frequency A 17/24 34/47 43/60 85 92 79 85 N/A N/A
Fast Warble NONE 15/27 30/47 38/59 85 92 79 85 N/A N/A
D900-05-00 2 I56-0496-018R
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 application 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 combination 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.
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.
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.
CAUTION
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
requirements 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”).
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.
Additional sounders may be needed to ensure sound output level
complies with NFPA requirements.
CAUTION
Limitations Of Sounder/Strobes
WARNING
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 provide 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 conditioners, 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 visually 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
epilepsy, 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 uninterrupted source of dc power in order to operate correctly. System Sensor
recommends that the sounder and signal strobe always be used in combination 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
200µS/div
1A/div
200µS/div
This in-rush current, as can be seen in Figure 1 for the 12V strobe, typically peaks at 3A and drops to nominal in 600
µS.
For the 24V strobe, as shown in Figure 2, the in-rush current typically
peaks at 7.0A, then drops to nominal in 800µS.
Please refer to insert for the Limitations of Fire Alarm Systems
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