Ingersoll-Rand Xe-145M, Pocket Manual

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ES-2) that open when the red E-
Stop button is pressed. Refer to the
electrical schematics for the correct
terminal location. ES-1 contact (red
wires) is located just after MCB3 in
the 115 VAC circuit and connects
to terminal P1-1
ES-2 contact (blue wires) is located in the 24 VDC logic
circuit at P3 7-8 for R-Series or P3 1-2 for RS-Series.
These contacts act in parallel to ensure power is
removed from the starter coils, solenoids, and
controller logic to cause the compressor to stop
immediately. The E-Stop will remain in the open
position until manually reset by pulling the red E-Stop
button forward.