Which of the following statements describes the proper operation of a three-way solenoid trip/dump valve on a two stage flash-type evaporator?

Correct Answer: Option A — The valve normally requires a manual reset.

Flash-type evaporators utilize a solenoid-operated dump valve to prevent contaminated distillate from entering the storage tanks. Per standard marine engineering practices, these safety devices are designed to fail-safe by diverting flow to the bilge upon a trip. A manual reset is required to ensure operator intervention after a contamination event.