GLENTEK Inc. 208 Standard Street, El Segundo, California 90245, U.S.A. (310) 322-3026
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GA45-71PR2/76PR2/81PR2/82PR2 MANUAL
CHAPTER FIVE: INSTALLATION PROCEDURE
5.1 MOUNTING:
The installation diagrams in Appendix B show the bolt hole mounting pattern to support the amplifier. The
mounting holes will accept 1/4 inch dia. bolts. The base material is cadmiurn plated, .060-inch-thick steel.
THE MOUNTING BOLTS SHOULD PROVIDE AN ELECTRICAL GROUND
FOR THE CHASSIS TO MINIMIZE SHOCK HAZARD.
The surface that the amplifier package will be mounted on must be able to support its
weight, but does not
need to provide “cold plate” cooling for the amplifier. A standard muffin fan is mounted on the baseplate to cool
the amplifier.
It is IMPORTANT to allow a minimum of three inches between both the fan side and the module side
(opposite fans) of the amplifier baseplate and the cabinet wall.
The distance between the other two sides and top of the amplifier and the cabinet walls are not critical.
However, some space should be provided for wire routing and terminal strip access.
The amplifier package should be mounted in a clean, dry enclosure with a maximum ambient temperature
of 122
0
F (50°C). To ensure maximum reliability, keep the amplifier cabinet cool and free from dust, oil and other
contaminates.
NEVER INSTALL THE AMPLIFIER PACKAGE IN ANY LOCATION WHERE
FLAMMABLE OR EXPLOSIVE VAPORS ARE PRESENT
5.2 WIRING SIZE AND PROPER TECHNIQUE:
Please refer to Appendix B, GA45xxPR2 installation diagrams. These installation diagrams show the neces-
sary external connections to ensure proper amplifier operation.
Glentek recommends that your wiring be in accordance with all national and local codes that are applicable
to your system. Wire size must be sufficient to accommodate the maximum continuous current that will be run
through it.
Recommended wire sizes for the amplifier are as follows:
GA4571PR2 GA4576PR2 GA4581PR2 GA4582PR2
MOTOR ARMATURE:
10AWG 8AWG 6AWG 4AWG
AC POWER INPUT (from
secondary of power transformer): 12AWG 10AWG 8AWG 6AWG
120 VAC FOR FANS: 16 AWG
SIGNAL INPUT: 22 AWG shielded twisted-pair
TACHOMETER INPUT: 22 AWG shielded twisted-pair. Terminate shield at amplifier end only, to
Tachometer Common, TB201 terminal-strip.
When wiring to-and-from the drive cabinet, it is considered good technique to route the power lines (16
AWG and larger) along different paths than the signal and tachometer lines. This minimizes the amount of stray
noise pick-up that is injected into the amplifier.
