Question 107Refrigeration & AC - 1st Asst/Chief
70% to passA box solenoid valve used in a multi-box refrigeration system is operated by electromagnetic action by what control device?
Aevaporator outlet temperature actuated thermostat
Bbox temperature actuated thermostat
Cdischarge pressure actuated pressure switch
Dsuction pressure actuated pressure switch
AI Explanation
The correct answer is B) box temperature actuated thermostat. The box temperature actuated thermostat is the control device that operates the box solenoid valve in a multi-box refrigeration system. This thermostat monitors the temperature inside the refrigerated box and opens or closes the solenoid valve to maintain the desired temperature setpoint. The other options are incorrect because they do not directly control the box solenoid valve. The evaporator outlet temperature (A), discharge pressure (C), and suction pressure (D) are not directly tied to the box temperature and would not be the primary control device for the box solenoid valve.
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