Question 52Refrigeration/AC - QMED70% to pass
In the multi-evaporator refrigeration system shown in the illustration, what is the proper name for the valve labeled "29"? Illustration GS-RA-12
AI Explanation
The correct answer is C) chill box thermostatic expansion valve.
The valve labeled "29" in the illustration GS-RA-12 is the thermostatic expansion valve for the chill box evaporator in a multi-evaporator refrigeration system. The thermostatic expansion valve controls the flow of refrigerant into the chill box evaporator based on the temperature in the chill box, ensuring proper cooling.
The other options are incorrect because: A) a freeze box would have a separate thermostatic expansion valve, B) a pressure regulating valve controls pressure, not temperature, and D) a solenoid valve is an on/off valve, not a metering valve like the thermostatic expansion valve.
Related Questions
#50 Which of the following illustrated thermal expansion valves would be appropriate to use on an evaporator coil with a 2 psi pressure drop, where externally adjustable superheat and a replaceable power element are both desired? Illustration GS-RA-06 #51 Which of the statements listed is applicable to the thermostatic expansion valve shown in the illustration? Illustration GS-RA-07 #53 What is one function of the thermal expansion valve used in a refrigeration system? #54 A thermal expansion valve installed in a refrigeration system is controlled by the action of what device? #55 When the sensing bulb of a thermostatic expansion valve is charged with a fluid different from the charge used in the system, what name of the charge is associated with the power element?