Installation
Installation of the MC 2500 requires careful
thought about three important factors. They are: the
electrical power to operate the unit, the weight, and
the heat generated when the MC 2500 is operating.
The MC 2500 draws 15 amperes when operated at
full power when amplifying music or speech. Do not
use ordinary extension cords. If an extension is used
then it must be heavy duty and 14 ga. or heavier.
Plug the AC power cord directly into a wall outlet.
Make certain that the AC power outlet has at least
15 amperes capacity. Do not plug the MC 2500 into
an auxiliary AC power outlet on a preamplifer or
other source equipment. If remote power operation
is required, an external relay arrangement must be
made.
The weight of the instrument is 129 pounds. Make
certain that the structure on which it is to be
mounted can support that weight.
Adequate ventilation extends the trouble-free life
of electronic instruments. It is generally found that
each 10° centigrade (18°F) rise in temperature
reduces the life of electrical insulation by one half.
Adequate ventilation is an inexpensive and effective
means of preventing insulation breakdown that
results from unnecessarily high operating tempera-
tures. The direct benefit of adequate ventilation is
longer, trouble-free life. The heat generated in the
operation of the MC 2500 is exhausted from the unit
by two temperature controlled low noise, long life
fans.
Cooling input air is drawn into the MC 2500
through the ventilation holes on the sides and bot-
tom of the amplifier. The air passes over the
transformers, output transistor heat sinks; and, is
blown out the back of the instrument by the fans. It
is recommended that at least 2 inches of clear space
be provided on each side and bottom.
To permit the fans to operate best, provide at least
5 inches of space at the rear of the instrument. A
source for input air and a means to exhaust the
heated air is necessary so that the heated air does
not recirculate through the MC 2500.
RACK INSTALLATION
The MC 2500 may be mounted in a standard 19"
rack by removing the aluminum side rails. When rack
mounted, the MC 2500 requires 10½ inches of panel
space. Allow two inches in front of the panel for the
knobs. A depth of 17 inches plus ventilation space is
required.
The MC 2500 can be slide mounted in a rack.
Tapped weld-nuts and internal structure bracing has
been added to both sides of the MC 2500 for use with
Model CTS-116 side mounted slide assemblies
manufactured by
General Devices Co.
Chassis-Trak Div.
525 S. Webster Ave.
Indianapolis, IN 46219
-2-
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