Federal Signal Corporation SST3-MV User manual

MODEL SST3-MV
INSTALLATION INSTRUCTIONS FOR FEDERAL MODEL SST3-MV
SELECTABLE SIRENTONE-MULTI VOLT

INSTALLATION INSTRUCTIONS
FOR
FEDERAL MODEL SST3-MV
SELECTABLE SIRENTONE-MULTI VOLT
A. GENERAL.
The Federal Model SST3-MV is a solid-state signalling device that can be used for general
purpose signalling. Any one of three distinctive signalling tones may be selected by dry contact
closure at the appropriate connections of J4. The tone can easily be changed if the signalling
requirements change. The Model SST3-MV can be installed either indoors or outdoors.
B. SPECIFICATIONS.
Operating Voltage 120/240VAC 50-60Hz, 24VDC
Operating current Voltage Current
120VAC 210MA
240VAC 120MA
24VDC 600MA
Sound Output dB(A) @ 10' dB(A)
on Axis UL Rating
Wail 109.5 100
Yelp 111 100
Horn 107 94
Weight (approx.) 4.4 lbs. (2.173Kg)
Dimensions (HWD) 14.5" x 12" x 9"
C. UNPACKING.
After unpacking the unit, examine it carefully for damage that may have occurred in transit. If
the equipment has been damaged, file a claim immediately with the carrier, stating the extent of
the damage. Before proceeding, ensure that the parts listed in the KIT CONTENTS LIST have
been supplied.
D. KIT CONTENTS LIST.
Qty. Description Part Number
1 Adapter K8476121A-04
1 Gasket, Adapter K8476122A
1 Connector Plug, 4-Position K140340B
1 Connector Plug, Tone Selector K140389A-04
E. INSTALLATION.
SAFETY MESSAGE TO INSTALLERS
People’s lives depend on safe installation of our products. It is important to follow all
instructions shipped with the products. This device is to be installed by a trained electrician who is
thoroughly familiar with the National Electrical Code and will follow the NEC Guidelines as well as
local codes.
The selection of the mounting location for the device, its controls and the routing of the wiring is to
be accomplished under the direction of the Facilities Engineer and the Safety engineer. In addition,
listed below are some other important safety instructions and
precautions you should follow:
• Read and understand all instructions before installing or operating this equipment.
• Do not connect this unit to the system when power is on.

• Optimum sound distribution will be severely reduced if any objects are in front of the speaker.
You should ensure that the front of the speaker is clear of any obstructions.
• All effective warning speakers produce loud sounds which may cause, in certain situations,
permanent hearing loss. You should take appropriate precautions such as wearing hearing
protection.
• All effective warning speakers produce loud sounds, which may cause, in certain situations,
permanent hearing loss. The device should be installed far enough away from potential listeners
to limit their exposure while still maintaining its effectiveness. The OSHA Code of Federal
Regulations 1910.95 Noise Standard provides guidelines which may be used regarding
permissible noise exposure levels.
• After installation, ensure that all bolts and threaded joints are tightened.
• Establish a procedure to routinely check the sound system for proper activation and operation.
• Provide a copy of these instructions to the Safety Engineer, operator(s) and maintenance
personnel.
• File these instructions in a safe place and refer to them when maintaining and/or reinstalling the
device.
Failure to follow all safety precautions and instructions may result in property damage,
serious injury, or death to you or others.
The Model SST3-MV can be attached to any relatively flat surface or to a variety of electrical
wall boxes. A four position plug is supplied for electrical power connection. In addition, two #8-32
x 3-1/4" slotted machine screws are included to attach the unit to a four-inch square electrical
box. After the mounting method and location have been selected, follow the procedure in the
appropriate paragraph of this section. The speaker portion of SST3-MV is not shown in the
installation figures for clarity. The speaker and its base assembly provides three degrees of
freedom, allowing the horn to be oriented for any coverage pattern desired. Adjustment is
accomplished with hand tightened nuts which require minimal torque to maintain horn position.
When mounted outdoors, ensure that the rain guard on the swivel base is oriented to protect the
speaker wire openings from falling rain.
CAUTION
Always provide sufficient support of the mounting boxes used to mount the horn.
Failure to do so may result in property damage, serious injury or death to you or others.
1. Weatherproof Mounting in WB Box.
a. See figure 1. Insert the two #8-32 x 3-1/4" slotted pan head screws into the SST3-MV base
at opposite corners.
b. Install the adapter gasket in the adapter, and place the adapter with installed gasket over
the screws inserted in step a.
c. Secure the SST3-MV base/adapter assembly in the WB with the pan head screws as shown
in figure 1.
2. Wall Mounting.
Wall mounting the SST3-MV in an NB or NBL box is accomplished using the adapter, adapter
gasket, and the #8-32 x 3-1/4" pan head screws as shown in figure 2.
a. See figure 2. Insert the two #8-32 x 3-1/4" slotted round head screws into the SST3-MV
base at opposite corners.
b. Install the adapter gasket in the adapter, and place the adapter with installed gasket over
the screws inserted in step a.
c. Secure the SST3-MV base/adapter assembly in the NB or NBL box with the pan head
screws as shown in figure 2.
-2-

3. Surface Mounting.
Surface mounting the SST3-MV in an NB or NBL box is accomplished using the adapter,
adapter gasket, and the #8-32 x 3-1/4" pan head screws. Use figure 2 as guide.
a. See figure 2. Insert the two #8-32 x 3-1/4" slotted pan head screws into the SST3-MV base
at opposite corners.
b. Install the adapter gasket in the adapter, and place the adapter with installed gasket over
the screws inserted in step a.
c. Secure the SST3-MV base/adapter assembly in the NB or NBL box with the pan head
screws as shown in figure 2.
4. Concealed Conduit Mounting.
The concealed conduit mounting method is shown in the figure 3. This mounting method is
recommended when an existing junction box or handy box will not accommodate the Model
SST3-MV. In order to accomplish this type of mounting, a Federal Model NBL Outlet Box and
an adapter plate are required. A pair of 6-32 and 8-32 flat head screws are included with the
concealed mounting kit to secure the plate to the existing box. Two 10-32 x 1/4" round head
screws are supplied to attach the NBL box to the plate. An insulated bushing is also supplied
to protect electrical leads passing through the center knockout of the NBL box.
F. POWER CONNECTIONS.
Make sure that the AC power is off.
When the unit is to be operated from an AC source, set the voltage selector switch SW1 to the
desired source voltage.
CAUTION
Use only 12 to 18 AWG wire for power connection. Strip no more than 0.25-inch of wire
insulation from the ends of the power leads.
Connect the AC power leads to the 120/240VAC terminals of the four position connector plug
supplied with the unit by inserting the stripped ends of the wire into the connector as far as they
can travel. Make sure supply lead insulation is flush with connector. If stranded wire is used, be
sure that there are no loose strands outside the connector plug that could touch the adjacent lead
and cause a short circuit. Plug the connector into the receptacle provided on the printed circuit
board.
For 24VDC operation, remove the jumper and connect the positive lead to the (+) terminal and
negative lead to the (-) terminal of the four position connector as shown in figure 4.
Choose either AC or DC power operation. Do not try to operate the unit by connecting both AC
and DC power sources at the same time.
G. TONE ACTIVATION WIRING.
1. Remote Tone Activation Connection.
Make sure that AC or 24VDC operating power to the unit is off.
The remote tone activation can be accomplished by applying a dry contact closure at J4 plug
(see figure 1) between GND terminal and one of the tone (WAIL, YELP, HORN) terminals.
Use #18AWG shielded twisted pair wires, strip no more than 0.25-inch of wire insulation from
the ends of leads to connect remotely located tone activating dry contact terminals between
GND and WAIL, YELP or HORN terminal of four position connector plug supplied with unit.
Make sure the lead insulation is flush with connector. If stranded wire is used, be sure that
there are no loose strands outside the connector plug that could touch adjacent lead and cause
a short. Plug the connector into the receptacle J4 on the printed circuit board.
The selected tone will play when unit is powered up and remote activation contacts are closed.
For proper operation of the remote activating circuit the total loop (resistance of GND wire
plus resistance of tone terminal wire plus the dry contact resistance) resistance of the circuit
should not exceed 1000 ohms.
-3-

Connecting a dry set of contacts for each of three tones, any one tone can be activated by
closing the appropriate contact. When contact closures are applied to all tone terminals
simultaneously, HORN tone will override the other two tones. If contact closures are applied
to HORN and any other tone HORN tone will override the other tone. If contact closures are
applied to WAIL and YELP, the WAIL tone will override the YELP tone.
2. Wiring for Single Tone Activation at Power-Up.
Make sure that AC or 24VDC operating power to the unit is off.
The unit can be operated by switching operating power (AC or 24VDC) ON to the unit if a
permanent short wire jumper is installed between GND and the desired tone terminal of the
four-position connector plug instead of dry contact closure.
Connect a short (1" long) #22 AWG wire between GND and the desired tone terminal of the
four position remote tone activation terminal connector plug supplied with the unit. Plug the
connector into the J4 receptacle (see figure 1) on the printed circuit board. Switching ON the
operating power will now activate the unit.
H. SERVICE.
SAFETY MESSAGE TO MAINTENANCE PERSONNEL
• Read and understand all instructions before performing any maintenance
to this unit.
• To reduce the risk of electrical shock or ignition of hazardous atmospheres, do not perform
maintenance/service on this device when circuits are energized.
• Optimum sound distribution will be reduced if speaker becomes clogged with a foreign
substance. Periodic checks should be performed to ensure foreign substances are not packed
into the speaker.
• Any maintenance to the unit MUST be performed by a trained electrician in accordance with
NEC Guidelines and local codes.
• Never alter the unit in any manner. Safety in hazardous locations may be endangered if
additional openings or alterations are made in units specifically designed for use in these
locations.
• The nameplate, which may contain cautionary or other information of importance to
maintenance personnel, should not be obscured if exterior of housings used in hazardous
locations are painted.
Failure to follow all safety precautions and instructions may result in property damage,
serious injury, or death to you or others.
The Federal factory will service your equipment or provide technical assistance with any
problems that cannot be handled locally.
Any units returned to Federal Signal for service, inspection or repair must be accompanied by a
Return Material Authorization. This R.M.A. can be obtained from your local Distributor or
Manufacturer’s Representative.
At that time a brief explanation of the service requested, or the nature of the malfunctions,
should be provided.
I. REPLACEMENT PARTS.
Description Part Number
Board Assy, SST3-MV K2001177
Connector Plug, 4-position K140340
Connector Plug, Tone Selector K140389A-04
-4-

ADAPTER GASKET
8-32 x 3-1/4"
SCREWS(2)
ADAPTER
ASSEMBLED DETAIL
SST3-MV
BASE
ASSEMBLY
WB GASKET
(REF.)
WB GASKET
ADAPTER
GASKET
SST3-MV
WB
ADAPTER
(SECTIONAL VIEW)
290A4032-01
1
ADAPTER GASKET
8-32 x 3-1/4"
SCREWS(2)
ADAPTER
SST3-MV
BASE
ASSEMBLY
NB, OR NBL BOX
GASKET
ASSEMBLED DETAILSST3-MV
NB OR
NBL
ADAPTER
(SECTIONAL VIEW) WALL
290A4032-02
2
-5-

3
8-32 x 3-1/4"
SCREWS(2)
ADAPTER
SST3-MV
BASE
ASSEMBLY
NB, OR NBL BOX
GASKET
ASSEMBLED DETAIL
SST3-MV
NBL
CC
ADAPTER
(SECTIONAL VIEW)
290A4032-0
3
290A4032-04
TONE SELECTOR CONNECTOR, J4
AC VOLTAGE SELECTOR SWITCH, SW1
POWER CONNECTOR PLUG, J3
SW1
120V
JUMPER
24VDC
120/240
240V
J3
SW1
J3
SSTX-MV
PRINTED CIRCUIT BOARD
+
-
FOR HORN TONE
FOR WAIL TONE
FOR YELP TONE
HORN GND
J4
WAIL GND
J4
YELP GND
J4
WAIL
HORN
YELP
GND
J4
4
2561620A
REV. A 300
Printed in U.S.A.