Whelen ALPHA12S - Manual (Page 2)

Page 2
11 OHM
SPEAKER #1
WHITE GREY ORANGE BROWN BLACK RED
CHASSIS
GROUND
+12V
HORN
RELAY
VEHICLE
HORN
CUT
HERE
TO
HORN
RING
6 POSITION INPUT CONNECTOR
10 AMP FUSE
(CUSTOMER
SUPPLIED)
(+)
12VDC
Battery
(-)
Alpha™
Mounting the Alpha TM Series Siren Amplifier:
The Alpha siren, although technologically advanced, is simple to
install. An aftermarket center console is recommended for the
mounting location of the siren. This not only allows the driver to
reach the controls easily, but also keeps the unit safely out of
the path of the vehicle’s SRS air-bag. Follow the console
manufacturer’s instructions for mounting information. If a
console-type mount is not possible, the siren includes a bail
strap mounting kit for over or under dash mounting.
The following steps will guide you through the bail strap
installation process:
1. Select a mounting location for the Alpha siren, either on top
of, or below your vehicle’s dashboard.
2. Using the bail strap as a guide, drill two 1/8” holes and
secure the bail strap to the dashboard with two #10 x 1”
Phillips pan head sheet metal screws (user supplied). Refer
to Figure 1.
4. Insert the Alpha siren amplifier into the bail strap, as shown
in Figure 2. Please note that it will be necessary to spread
the bail strap arms slightly apart to accept the Alpha’s
carriage bolts into their mounting holes.
Fig. 1
Fig. 2
3. Slide the carriage bolts into the middle of the mounting
tracks on the siren amplifier and fit an external-tooth lock
washer onto each of the carriage bolts.
5. Place a lock washer and an acorn nut on each carriage bolt
and tighten with a 3/8” wrench. Do not over-tighten!
Wiring the Alpha TM Series Siren Amplifier
Connecting to power:
1. Extend the RED and BLACK wires through the firewall and
into the engine compartment.
2. Follow factory wiring harness towards the vehicle’s battery.
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 at
the battery to carry that load. DO NOT USE CIRCUIT BREAK-
ERS WITH THIS PRODUCT!
3. Connect the RED wire to one end of a user supplied, 10 amp
fuse block. Do not connect this unit to the battery yet!
4. Connect the BLACK wire directly to the NEGATIVE battery
terminal.
CAUTION
Loud siren noise can cause
hearing damage and/or loss.
Refer to OSHA Section 1910.95 prior
to putting ANY siren into service!
Wear
Protection!
ACTIVATION OF THIS
SIREN MAY DAMAGE
UNPROTECTED EARS!