Code 3 Remote Compact Siren User Manual

INSTALLATION
& OPERATION

MANUAL

3920/25

SIREN

MODEL 3920/25

REMOTE COMPACT SIREN

Contents:

Introduction .............................................................. 2

Standard Features..................................................... 2

Unpacking & Pre-Installation ....................................... 3

Installation & Mounting ............................................... 3

Wiring ..................................................................... 4

Speaker Connections ............................................... 5

Operation ................................................................ 5

Specifications ........................................................... 6

Maintenance ............................................................ 7

Troubleshooting ........................................................ 7

Parts List (Replacement Parts / Exploded View) .............. 8

Notes ..................................................................9-11

Warranty ................................................................12

IMPORTANT:

Read all instructions and warnings before installing and using.

INSTALLER: This manual must be delivered to the end user of this equipment.

Introduction

!

The Code 3® Model 3920 siren produces three distinct tones, "Wail", "Yelp"and "Hyper-Yelp". In addition, the siren
produces a momentary "Air Horn" tone. The siren features one remote input for selection/control of the siren tones
and "Air Horn" as well as Output Short Circuit Protection.

Sirens are an integral part of an effective audio/visual emergency warning system. However, sirens are only
short range secondary warning devices. The use of a siren does not insure that all drivers can or will observe
or react to an emergency warning signal, particularly at long distances or when either vehicle is traveling at a

WARNING!

SIREN PRODUCTS:

high rate of speed. Sirens should only be used in a combination with effective warning lights and never relied
upon as a sole warning signal. Never take the right of way for granted. It is your responsibility to be sure you
can proceed safely before entering an intersection, driving against traffic, or responding at a high rate of speed.
The effectiveness of this warning device is highly dependent upon correct mounting and wiring. Read and
follow the manufacturers instructions before installing or using this device. The vehicle operator should check
the equipment daily to insure that all features of the device operate correctly.
To be effective, sirens must produce high sound levels that potentially can inflict hearing damage. Installers
should be warned to wear hearing protection, clear bystanders from the area and not to operate the siren
indoors during testing. Vehicle operators and occupants should assess their exposure to siren noise and
determine what steps, such as consultation with professionals or use of hearing protection should be imple­mented to protect their hearing.
This equipment is intended for use by authorized personnel only. It is the user’s responsibility to understand
and obey all laws regarding emergency warning devices. The user should check all applicable city, state and
federal laws and regulations.
Code 3, Inc., assumes no liability for any loss resulting from the use of this warning device.
Proper installation is vital to the performance of the siren and the safe operation of the emergency vehicle. It is
important to recognize that the operator of the emergency vehicle is under psychological and physiological
stress caused by the emergency situation. The siren system should be installed in such a manner as to: A)
Not reduce the acoustical performance of the system, B) Limit as much as practical the noise level in the
passenger compartment of the vehicle, C) Place the controls within convenient reach of the operator so that he
can operate the system without losing eye contact with the roadway.
Emergency warning devices often require high electrical voltages and/or currents. Properly protect and use
caution around live electrical connections. Grounding or shorting of electrical connections can cause high
current arcing, which can cause personal injury and/or severe vehicle damage, including fire.
PROPER INSTALLATION COMBINED WITH OPERATOR TRAINING IN THE PROPER USE OF EMER­GENCY WARNING DEVICES IS ESSENTIAL TO INSURE THE SAFETY OF EMERGENCY PERSONNEL
AND THE PUBLIC.

Standard Features

The 3920 Remote siren provides the following features:

Tones: Wail, Yelp, HyperYelp and Air Horn
Remote Siren Switching - The siren accepts a ground (earth) signal, from the vehicle's horn switch (or other

user supplied switch), and remotely activates the siren as described under the operation section.

2

Unpacking & Pre-installation

!

After unpacking your 3920 siren, carefully inspect the unit and associated parts for any damage that may have occurred
in transit. Report any damage to the carrier immediately.

Installation & Mounting

The 3920 siren is designed to be remotely mounted in a cool dry location such as under a seat or in the trunk. The siren may
not be mounted in any location where it will be exposed to high heat or moisture. The 3920 siren is controlled by either proper
connection to the vehicle Horn Ring switch and/or by use of the optional remote switch panel. Ease of operation and
convenience to the operator should be prime consideration when mounting the siren and controls. Figure 1 shows the switch
panel.

All devices should be mounted in accordance with the manufacturer's instructions and
securely fastened to vehicle elements of sufficient strength to withstand the forces applied to
the device.
Ease of operation and convenience to the operator should be the prime consideration when
mounting the siren and controls. Adjust the mounting angle to allow maximum operator

WARNING!

visibility.
Do not mount the Control Head Module in a location that will obstruct the drivers view.
Mount the microphone clip in a convenient location to allow the operator easy access.
Devices should be mounted only in locations that conform to their SAE identification code as
described in SAE Standard J1849. For example, electronics designed for interior mounting
should not be placed underhood, etc.
Controls should be placed within convenient reach* of the driver or if intended for two person
operation the driver and/or passenger. In some vehicles, multiple control switches
and/or using methods such as "horn ring transfer" which utilizes the vehicle horn switch to
toggle between siren tones may be necessary for convenient operation from two positions.
*

Convenient reach is defined as the ability of the operator of the siren systems to manipulate
the controls from his normal driving/riding position without excessive movement way from the
seat back or loss of eye contact with the roadway.

SCROLL
SWITCH

SIREN OFF

14AWG YEL

TO

-REMOTE (W7)

14AWG BLK

GROUND

(EARTH)

14AWG RED

SIREN POWER

14AWG RED
IGNITION
SWITCHED
+12VDC

FIGURE 1

3

SWITCH