Orion HCCA3000.1DSPLX Manual page 12

PLANNING & INSTALLING
Before beginning the installation, consider the following:
If you plan to expand your system by adding other components
sometime in the future, ensure the adequate space is left, and
cooling requirement are met.
Are your components matched? The peak power rating of your speakers
must be equal or greater than the amplif ier. They also must be 2-8
Ohms impedance for the multi-channel Class A/B or Class H amplif iers
and 1-8 ohms impedance for the Class-D Mono-Block amplif ier's.
Mounting Your Amplif ier
The mounting position of your amplifier will have a greater affect on its
ability to dissipate the heat generated during normal operation. This
amplifier has ample heat sink dissipation, and is designed with a thermal
shutdown circuit (for heat protection). DO NOT enclose the amplifier in a
small box or cover it so that air is not able to circulate freely.
Temperature in car trunks have been measured as high as 155 F in
the summer time. As the thermal shut down point for the amplif ier
is 185 F, it is easy to see that it must be mounted in an area that
provides for maximum cooling capability. To achieve maximum
advantage of convection air flow in an enclosed trunk, mount the
amplif ier in a horizontal position.
Cooling requirements are considerably relaxed when mounting inside
the passenger compartment since the passenger compartment
will not allow temperatures to reach a critical point. Floor mounting
under the seat is usually satisfactory as long as there is at least one
inch of clearance above the amplif ier's heat sink for ventilation.
1. Select a suitable location that is convenient for mounting,
is accessible for wiring, and has ample room for air circulation
and cooling.
2. Use the amplif ier as a template to mark the mounting holes.
remove the amplif ier and drill holes. Remove the amplif ier
and drill holes. Use extreme caution, inspect underneath
surface before drilling.
3. Mount the amplif ier using the screws provided.
Caution: Before connecting any wires to the amplif ier, disconnect
the ground lead f rom the battery. Leave the ground lead
disconnected until you are done wiring the amplif ier
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