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SEP 2005
5.10
FUSE PROTECTION
AC power fuse protection for the GC Controller is provided by a single fuse, located on the
Controller's Terminal Board for Field Wiring (TB). AC power surge protection is also provided by
two Metal Oxide Varistors (MOVs).
SERIOUS PERSONAL INJURY OR DEATH POSSIBLE
Before attempting to examine or replace the Controller's fuse, disconnect AC power
from the Controller.
Failure to observe all safety precautions could result in serious injury or death.
To locate and replace the Controller's fuse, note the following:
Figure 5-9. AC Fuse Holder on the GC Controller Terminal Board, Lower Left Corner
Fuse Location - Inside small black holder by lower left corner of the GC Controller TB, by label
"F1" (see Figure 5-9). Spare fuses are in a small box attached to the GC Controller.
Fuse Size and Capacity - 5 x 20 millimeters (mm), 2 amperes @ 250 volts AC, "slo-blo".
Fuse Replacement - Pull fuse holder by its handle away from board, then open.
5-48
MODEL 1000
MAINTENANCE
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Troubleshooting
