A box solenoid valve used in a multi-box refrigeration system is operated by electro- magnetic action by what control device?

Correct Answer: Option D — box temperature actuated thermostat

Box solenoid valves in multi-box refrigeration plants are directly governed by dedicated box temperature thermostats. When the refrigerated space reaches setpoint, the thermostat de-energizes the solenoid to secure liquid refrigerant flow to that specific evaporator.