Whelen EPSL1 User Manual

®

ENGINEERING COMPANY INC.

51 Winthrop Road
Chester, Connecticut 06412-0684

Epsilon™ Siren Amplifier

Installation Guide:

Phone: [phone]
Fax: [phone]
Internet: www.whelen.com
Sales e-mail: [e-mail]
Canadian Sales e-mail: [e-mail]
Customer Service e-mail: [e-mail]

DANGER! Sirens produces extremely loud emergency warning tones! Exposure to these

tones without proper and adequate hearing protection, could cause ear damage and/or hearing
loss! The Occupational Safety & Health Administration (www.osha.gov) provides information
necessary to determine safe exposure times in Occupational Noise Exposure Section 1910.95.
Until you have determined the safe exposure times for your specific application, operators and
anyone else in the immediate vicinity should be required to wear an approved hearing protection
device. FAILURE TO FOLLOW THIS RECOMMENDATION COULD CAUSE HEARING LOSS!

Safety First

This document provides all the necessary information to allow your Whelen product to be properly and safely installed.
Before beginning the installation and/or operation of your new product, the installation technician and operator must
read this manual completely. Important information is contained herein that could prevent serious injury or damage.

• Proper installation of this product requires the installer to have a good understanding of automotive electronics,
systems and procedures.

• If mounting this product requires drilling holes, the installer MUST be sure that no vehicle components or other
vital parts could be damaged by the drilling process. Check both sides of the mounting surface before drilling
begins. Also de-burr any holes and remove any metal shards or remnants. Install grommets into all wire
passage holes.

• If this manual states that this product may be mounted with suction cups, magnets, tape or Velcro®, clean the
mounting surface with a 50/50 mix of isopropyl alcohol and water and dry thoroughly.

• Do not install this product or route any wires in the deployment area of your air bag. Equipment mounted or
located in the air bag deployment area will damage or reduce the effectiveness of the air bag, or become a
projectile that could cause serious personal injury or death. Refer to your vehicle owner’s manual for the air bag
deployment area. The User/Installer assumes full responsibility to determine proper mounting location, based
on providing ultimate safety to all passengers inside the vehicle.

• For this product to operate at optimum efficiency, a good electrical connection to chassis ground must be
made. The recommended procedure requires the product ground wire to be connected directly to the NEGATIVE
(-) battery post.

• If this product uses a remote device to activate or control this product, make sure this control is located in an
area that allows both the vehicle and the control to be operated safely in any driving condition. DO NOT
ATTEMPT TO ACTIVATE OR CONTROL THIS DEVICE IN A HAZARDOUS DRIVING SITUATION.

• It is recommended that these instructions be stored in a safe place and
referred to when performing maintenance and/or reinstallation of this
product.

• FAILURE TO FOLLOW THESE SAFETY PRECAUTIONS AND
INSTRUCTIONS COULD RESULT IN DAMAGE TO THE PRODUCT OR
VEHICLE AND/OR SERIOUS INJURY TO YOU AND YOUR PASSENGERS!

ACTIVATION OF THIS
SIREN MAY DAMAGE
UNPROTECTED EARS!

CAUTION

Loud siren noise can cause
hearing damage and/or loss.

Wear

Refer to OSHA Section 1910.95 prior

Protection!

to putting ANY siren into service!

Automotive: Sirens/Switches

For warranty information regarding this product, visit www.whelen.com/warranty

©2008 Whelen Engineering Company Inc.
Form No.14218 (101508)

Page 1

Congratulations on selecting the Epsilon™ Siren. This siren offers a unique and distinctive collection of features designed to allow the
user to customize the operation of this siren to suit their individual needs. Features include:

• Speaker diagnostic indicator

• 100 watts of output power

• Scan-Lock™ siren tone programming

• Hands-Free operation

• LED Backlighting

• 7 position rotary switch function selector

• Compact design

• Harmonically rich composite air horn tones

Mounting:

This siren is designed to be mounted directly onto the dash or other surface through
the use of a bail strap mounting bracket. The unit may also be mounted into your
vehicle’s console (if so equipped).

WARNING: Regardless of the style selected, be sure to observe the Air Bag
Warning on the cover of this manual.

WARNING: Mounting this unit will require drilling. It is absolutely necessary to
make sure that no other vehicle components could be damaged in the process.
Check both sides of the mounting surface before starting. If damage is likely,
select a different location.

Bail Strap Mount:

1. Position bail strap in selected mounting

location and drill mounting holes, then
secure the bail strap to the vehicle.

2. Secure the siren to the bail strap as shown.

Tighten the screws firmly.

®

Console Mount:

Console manufacturers offer mounting kits that include all the necessary hardware
and brackets required to mount this unit into their console. The console mount
brackets are secured onto the unit the same way as the bail bracket. Please refer to
the manual included with your console.

Microphone Clip:

A microphone clip is included. Secure with provided hardware.

WARNING: Refer to the Air Bag Warning before installing this clip.

Wiring:

Siren Input Connector - RED: Power - BLACK: Ground

WARNING: All customer supplied wires that connect to the positive terminal of
the battery must be sized to supply at least 125% of the maximum operating
current and FUSED
BREAKERS WITH THIS PRODUCT!

1. Extend the RED and BLACK wires

toward the vehicle battery. To pass
the RED and BLACK wires
through, you may have to drill a
hole in the firewall. Insert a grommet to protect the wires.

2. Route the RED and BLACK wires along the factory harness towards the battery
and install a fuse block (user supplied) on the end of the RED wire. Remove fuse

from fuse block before connecting any wires to battery.

3. Connect fuse block wire to POSITIVE terminal on battery. There must not be more

than 2 feet of wire between fuse block and battery. The wire between the fuse and
battery is “unprotected,” do not allow it to chafe and short to ground.

4. Connect the BLACK wire to the factory chassis ground.

YELLOW & BROWN - Speaker Wires

1. Route the YELLOW and BROWN wires toward vehicle siren speakers, along
factory wire harness and through firewall at the same point as the RED and
BLACK wires.

2. Connect the YELLOW wire to the POSITIVE terminal on the SPEAKER and the
BROWN wire to NEGATIVE connection on the speaker.

WHITE/GREEN - Horn Relay Wires:

1. Route WHITE/GREEN wire along factory wire harness and through firewall at the
same point as the RED and BLACK wires.

2. Route WHITE/GREEN wires to vehicle’s horn relay. If possible, follow the factory
wire harness to this relay.

3. Locate the wire that connects the vehicle horn to the horn relay.

4. Connect the WHITE/GREEN wire to the wire that runs from the horn relay to the

horn.

GREEN - Aux Override:

This wire is activated by switching it to ground (see page 3 for operation).

at the battery to carry that load. DO NOT USE CIRCUIT

TABLE 1

Current Draw

AMPS

Wire Gauge / AWG

20

22

5

3

Distance in Feet

18

16

14 12

7.51219.5

10

49

3110

• Title 13 compliant profiles

• Non-destructive short circuit protection.

• Horn ring control inputs

•PA Override

HORN

WIRING DIAGRAM

INPUT VOLTAGE
INPUT CURRENT
INPUT FUSE
SPEAKER IMPEDANCE
OPERATING TEMPERATURE
STORAGE TEMPERATURE
HUMIDITY
OUTPUT VOLTAGE
OUTPUT POWER

Unused Outlets:2-3-5-7-8-9-10

@ 15 VDC @ 11 OHMS 34 V RMS MAX.

@ 15 VDC @ 11 OHMS 105 WATTS MAX.

13-14&16Unused Outlets:

Rear view

of amplifier

12.8 VDC ±20%
8 AMPS MAX.

10 AMPS

11 OHMS MIN.

-30° C. TO +60° C.

-40° C. TO +70° C.

99% (NON CONDENSING)

10 Amp
Fuse

Scan-Lock™

16 Position
Outlet

TO HORN

BUTTON

RELAY

+12V

11

WHT/GRN

6

YELLOW

4

BROWN

GREEN

12

1

BLACK

RED15

1

0 AMP

FUSE

16 Position
Connector

Fuses & Fuse Blocks are customer supplied.

BATTERY

AUXILIARY
OVERRIDE
CONNECTION
(OPTIONAL)

CHASSIS
GROUND

Front Panel

POWER

MAN1

STDBY

MAN

SPKR

Power
Switch

Diagnostic
Indicator

Manual
Button

Power Switch

This switch has two positions. Down (Off) and Up (On). When this switch is off, siren
functions are disabled.

Rotary Switch

The Rotary Knob controls the siren functions of the Epsilon. There are 7 positions
that may be selected (see “Switch Operations”).

Volume Knob

The Volume Knob controls the volume of Public Address function. Volume is
increased by rotating the knob in a clockwise direction. Rotating the volume knob in a
counter-clockwise direction decreases the volume produced by these features. The
volume knob has no effect on siren tones.

MAN Button

The Manual button generates a variety of tones, depending on what position the
rotary knob is in (see “Switch Operations”).

Diagnostic Indicator:

While this siren is under normal use the diagnostic indicator is used to indicate fault
conditions with your siren system. The following table lists the type of fault and the
indicators response. If the indicator is on steady while a tone is in use, this implies
that there is no fault with the speaker output.

Fault Condition Diagnostic Indicators Response

Speaker Short Circuit: The speaker LED will be in a SingleFlash mode (the LED will
be on and off an equal amount of time) and siren tones won’t operate.

Speaker Undercurrent: Speaker LED will be off. All tones will continue to operate.

Microphone:

Whenever the siren is on, activating the microphone (pressing the switch on the side
of the mic.) will shut down any other siren functions and enable public address
operation regardless of the rotary switch position or any other switch or input.

MAN2

Rotary
Switch

HF

T1

T2

T3

VOL

Microphone
Volume

HORN

VEHICLE

100W

SPEAKER

Page 2