250 Part Number Preliminary 6/11
LOW PRESSURE CUTOUT (LPCO) CONTROL
FUNCTION
Signals the control board to energize and de-energize
the ice machine when suction pressure rises above or
falls below setpoint.
The LPCO control is closed at pressures above
setpoint and opens at pressures below setpoint.
CHECK PROCEDURE
1. Connect manifold gauges at suction and
discharge access valves and verify refrigerant
pressure exceeds LPCO cut-in.
2. Navigate to LPCO input on display
• Press the Menu button.
• Scroll down to Service and press right arrow.
• Scroll down to Diagnostics and press right arrow
• Scroll down to Inputs and press right arrow to
display LPCO reading
3. LPCO display indicates
A. Open = Replace Switch
B. Closed = Switch OK
Specifications
Cut-Out Cut-In
12 psig ±3 35 psig ±3
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