Question 113Refrigeration/AC - 1st Asst/Chief70% to pass
The thermostat controlling the operation of the solenoid valve to a refrigerated box evaporator senses what temperature?
AI Explanation
The correct answer is D) the refrigerated box temperature.
The thermostat controlling the solenoid valve to a refrigerated box evaporator senses the temperature inside the refrigerated box, not the temperature at the evaporator coil outlet, compressor discharge, or evaporator coil inlet. The thermostat's purpose is to maintain the desired temperature within the refrigerated box, so it needs to measure the actual box temperature to properly control the evaporator operation.
The other options are incorrect because they do not represent the temperature that the thermostat is monitoring to regulate the refrigeration system. The evaporator coil outlet, compressor discharge, and evaporator coil inlet temperatures are important for the overall system performance, but they are not the direct control point for the solenoid valve operation.
Related Questions
#111 A container unit's microprocessor-controlled temperature controller is set at -28.9 ° C, appropriate for a frozen cargo of ice cream. In this mode of operation, according to the illustrated temperature controller functional diagrams, what should be the operational status of the unit if the actual box temperature is -18.0 ° C? Illustration GS-RA-035 #112 Which of the following electrically operated refrigeration system valves would be most appropriate for use as a 2 position diverting hot gas bypass solenoid valve? Illustration GS-RA-19 #114 The sensing line for the low pressure cutout switch for a refrigeration system is typically connected at what location? #115 In a multi-evaporator refrigeration system, a solenoid valve is installed in the liquid line prior to what device? #116 Rather than design an infinite variety of thermostatic expansion valve sizes to accommodate different capacities for heat removal, some manufacturers use a few standard valve body sizes in conjunction with what other feature?