Manitowoc CVD1375 Especificaciones descargar pdf (Pagina 175)

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Low Pressure Cutout (LPCO) Control

FUNCTION

Energizes and de-energizes the contactor coil 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 at the condensing unit.

2. Set ICE/OFF/CLEAN switch to OFF.

3. The liquid line solenoid valve will de-energize and

the suction pressure will begin to decrease. The

low-pressure control will open at the listed

specification.

4. Use the manifold gauge set to increase suction

pressure. Feed refrigerant from the high side

access valve to the low side access valve. Add

refrigerant in small increments to allow the low side

pressure to be monitored. The low pressure control

will close at the listed specification.

Replace the LPCO control if it:

1. Will not close at the specified setpoint.

2. Does not open at the specified setpoint.

Specifications

Cut-Out Cut-In

7 psig ±3 22 psig ±3

1 2 ... 170 171 172 173 174 175 176 177 178 179 180 ... 203 204

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