Instruction Manual

Page 2 of 6
Using the hardware supplied, the Controller may be mounted in various locations in the vehicle: below the dash, on the tunnel, etc. The
controller can also be mounted with a magnetic mounting kit (sold seperately). Ease of operation and convenience to the operator should be
the prime consideration when mounting the siren and controls. The amplier may be mounted at an appropriate location within the vehicle,
and the 12ft extension cord can be used to couple the hand-held controller to the amplier.
Installation and Mounting
Wiring Instructions
WARNING!
All devices should be mounted in accordance with the manufacturer’s instructions and securely fastened to vehicle elements of
su󰀩cient 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 visibility. Do not mount the
Hand-Held Controller in a location that will obstruct the drivers view. Mount the Hand-Held Controller mounting base in a convenient location
to allow the operator easy access. Devices should be mounted only in locations that conform to their SAE identication 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 dened as the ability of the operator of the siren system to manipulate the controls from their normal driving/riding
position without excessive movement away from the seat back or loss of eye contact with the roadway.
The H3 Covert amplier is not waterproof. It must be mounted in a location that is sheltered from rain, snow, standing water, etc. It must be
also installed in an adequately ventilated area. Do not install near heater ducts or under the vehicle’s hood. Using the mounting holes on the
amplier as a template, scribe four drill position marks at the mounting locations. Be sure that both sides of the mounting surface are clear of
parts that may be damaged. The siren accessory kit with mounting hardware supplied provides the user with a choice of mounting hardware.
Secure the H3 Covert amplier to the mounting surface, using the mounting hardware, including lock washers.
The connection between the H3 Covert amplier box and the Handheld Controller or the Input Wire Box is a RJ45 connector.
Notes:
1. Larger wires and tight connections will provide longer service life for components. For high current wires it is highly recommended
that terminal blocks or soldered connections be used with shrink tubing to protect the connections. Do not use insulation displacement
connectors (e.g., 3M Scotchlock type connectors).
2. Route wiring using grommets and sealant when passing through compartment walls. Minimize the number of splices to reduce voltage
drop. All wiring should conform to the minimum wire size and other recommendations of the manufacturer and be protected from moving
parts and hot surfaces. Looms, grommets, cable ties, and similar installation hardware should be used to anchor and protect all wiring.
3. Fuses or circuit breakers should be located as close to the power takeo󰀨 points as possible and properly sized to protect the wiring and
devices.
4. Particular attention should be paid to the location and method of making electrical connections and splices to protect these points from
corrosion and loss of conductivity.
5. Ground termination should only be made to substantial chassis components, preferably directly to the vehicle battery.
6. Circuit breakers are very sensitive to high temperatures and will “false trip” when mounted in hot environments or operated close to their
capacity.
(Reference Figures 1 and 2)
1. Disconnect the cable on the negative end of the battery before performing installation. Do not connect the H3 Covert system to vehicle
battery until all other electrical connections are made and mounting of all components is complete. Verify the polarities of the cable
and ensure that no short circuits exist before connecting to the battery terminals. If routing the extension cable requires drilling a hole
in sheet metal or other material, drill a 5/8″ hole in the material and install a 5/8″ grommet (not supplied) to protect the cable.
2. User-supplied 12-gauge red and black wires are required for positive (+12V) and negative (NEG) connections. User-supplied 18-gauge
wires are required for the speaker connections.
3. Attach the Handheld Controller or Input Wire Box to the amplier using the provided RJ45 cable. If the amplier is remotely mounted,
use the included 12’ extension cord and coupler.
4. To install the positive and negative power wires, strip 1/4” of insulation from the end of the wires, insert the red wire into the terminal
block position labeled +12V, and the black wire into the terminal block position labeled NEG, and tighten the screws. The “+12V”
position may be connected either directly to a +12V source (such as a battery), or through a switch (such as an ignition switch).
5. Speaker – the siren is designed to operate with one 11-ohm impedance speaker (100W). Speakers are not included as part of the siren.
Any 11-ohm 100W speakers for use with emergency vehicle may be considered to use. To meet SAE J1849, only approved speakers
must be used.
Connection of a 58 watt speaker to the siren amplier will
cause the speaker to burn out, and will void the speaker
warranty!