On a modern refrigerated container unit employing suction modulation for the purposes of capacity control and capacity limitation, what happens when the applied voltage and current draw associated with the normally open (NO) suction modulation valve located in the suction line both increase?

Correct Answer: Option A — the valve will further close, raising evaporator pressure and lowering suction pressure

Increasing current and voltage to a normally open suction modulation valve energizes the actuator to restrict refrigerant flow, thereby throttling suction pressure downstream while elevating upstream evaporator pressure and temperature.