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INSTALLATION AND SERVICE  INSTRUCTIONS FOR STREAMLINE  LP4 SOUNDER

 SAFETY MESSAGE TO INSTALLERS

People’s lives depend on your safe installation of our products. It is important to read, understand 

and follow all instructions shipped with this product.
Selection of mounting location for this device, its controls and routing of wiring should be made by 

the Facilities Engineer and the Safety Engineer. Listed below are other important safety instructions 

and precautions you should follow.
•  This unit must be installed and maintained by a qualified electrician in accordance with National 

and local Electrical Codes, under the direction of the authority having jurisdiction.

•  Do not connect this unit to system wiring when circuits are energized.
•  For optimum sound distribution do not install this device where objects would block the front of 

the sounder.

•  All effective warning horns produce loud sounds which, in certain circumstances, may cause 

permanent hearing loss. Take appropriate precautions such as wearing hearing protection. Recom-

mendations in OSHA Sound Level Standard (29 CFR 1910) should not be exceeded.

•  After installation, be sure that all threaded joint are securely tightened.
•  After installation and completion of initial systems test, a program for periodic testing of this 

device must be established. 

•  After installation and completion of initial system test, provide a copy of this instruction sheet to 

all personnel responsible for operation, periodic testing and maintenance of this equipment.

Failure to follow all safety precautions and instructions may result in property damage, serious 

injury, or death.

I. GENERAL.

The Federal Signal Model LP4 sounder provides an audible signal when activated by a remotely 

located control panel. The sounder is a polarized device rated at 9–28 Vdc. The sounder is suitable 

for indoor/outdoor use. The LP4 can provide one of 32 different tones by setting the dip switches, 

located on the inside of the unit. A second or alternative tone can be activated by connecting a 

third wire to the negative supply. The LP4 also provides an adjustable volume control. The sound 

output levels, typical current consumption, and tone variations are shown in Table 1.

Electrical Details:

Termination: 

Screw terminals for 23 AWG to 13 AWG conductors.

Voltage Range: 

9–28 Vdc

Starting Current: 

30 mA for 2 ms

Starting Time: 

1.5 ms

Running Current: 

Varied according to tone selected. See Table 1.

Monitoring: 

Polarizing diode

Mechanical Details:

Diameter: 

3.66" (93 mm)

Overall Depth: 

Shallow: 2.48" (63 mm)

 

Deep:      4.13" (105 mm)

IP Rating: 

Shallow: IP54          Deep:  IP65

Temp. range: 

–13° F to 158° F (–25 °C to 70 °C)

Case Material: 

ABS plastic body

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