Owner's Manual
10
NOTE: The control board comes equipped with a built-in surge
protector which MAY prevent damage to the controller board in the
event of a nearby lightning strike or a surge in the power lines. For the
surge protector to function, and as a general precaution, the operator
must be properly grounded. The third wire for the ground must be
installed .
ADDITIONAL LIGHTNING PROTECTION
For those areas where a high probability of ground lightning strikes
exists (Florida, Georgia, etc.), additional lightning protection should be
installed. Although it may not be possible to protect against all strikes,
additional protection will substantially reduce the occurrence of
lightning damage. Allstar’s lightning data indicates that the most
strikes enter the operator through the power lines. Effective protection
requires that the surge current from the lightning strike be shunted to
ground. This must be done without raising the potential of the circuitry
in the operator, with respect to ground, to the levels that will damage
the solid state circuitry. Lightning strikes generate enormous currents
for very short periods of time. Unfortunately, the period of time is long
enough to damage solid state components and many times, other
components. The key to success is a very low resistance path from the
surge protector to ground for these currents in addition to a surge
protector that will act fast enough to protect the solid state circuitry.
Several manufacturers offer suitable surge protectors.
WARNING!
TO REDUCE THE RISK OF DAMAGE DUE TO
LIGHTNING, ENSURE A SOLID GROUND FROM THE
GROUND WIRE IN THE SERVICE ENTRANCE 2 x 4
HANDY BOX TO THE ELECTRICAL SERVICE GROUND
OR TO A EARTH GROUND STAKE NEAR THE LEADER
IMPROPER WIRING COULD CAUSE
ELECTROCUTION OR DAMAGE TO CIRCUITRY.
FOLLOW LOCAL BUILDING AND ELECTRICAL
WARNING!
C
: INSTALLING THE OPERATOR
Figure 11: Terminal Strip
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