Low Pressure Cutout (Lpco) Control - Manitowoc SD0302A Technician's Handbook
S series;
s300 series;
s420 series;
s450 series;
s500 series;
s850 series;
s1000 series;
s1200 series;
s1400w series;
s1400a series;
s1400n series;
s1800w series;
s1800a series;
s1800n series
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Also See for SD0302A:
- Technician's handbook (301 pages) ,
- Service manual (168 pages) ,
- Installation, use & care manual (68 pages)
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LOW PRESSURE CUTOUT (LPCO) CONTROL
(S3300 Only)
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..
Cut-Out
12 psig ±3
CHECK PROCEDURE
1. Connect manifold gauges at suction and
discharge access valves and verify refrigerant
pressure exceeds LPCO cut-in.
2. Isolate LPCO electrical leads, connect a
multimeter and read resistance.
Open = Replace Switch
Closed = Switch OK
Part Number 80-1479-3 7/10
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Specifications
Cut-In
35 psig ±3
167
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