Question 51Refrigeration/AC - QMED70% to pass
Which of the statements listed is applicable to the thermostatic expansion valve shown in the illustration? Illustration GS-RA-07
AI Explanation
The correct answer is B) The control bulb is located on the evaporator coil outlet.
The thermostatic expansion valve regulates the flow of refrigerant into the evaporator coil based on the temperature of the refrigerant at the evaporator outlet. The control bulb, which senses the temperature, is located on the evaporator coil outlet to monitor the superheat of the refrigerant. This allows the expansion valve to adjust the refrigerant flow to maintain the proper amount of superheat, ensuring efficient operation of the refrigeration system.
The other options are incorrect because:
A) The thermostatic expansion valve does not directly regulate the temperature of the refrigerated space.
C) The thermostatic expansion valve regulates superheat, not the solenoid valve.
D) The external equalizing pipe is connected to the evaporator coil outlet, not the liquid receiver.
Related Questions
#49 The "tare weight" of a refrigerant storage cylinder refers to what weight? #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 #52 In the multi-evaporator refrigeration system shown in the illustration, what is the proper name for the valve labeled "29"? Illustration GS-RA-12 #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?