Question 9Refrigeration/AC - 1st Asst/Chief70% to pass
In a refrigeration system, the valve shown in the illustration is used for what purpose? Illustration GS-RA-14
AI Explanation
The correct answer is D) head pressure regulating valve.
The valve shown in the illustration is used to regulate the head pressure in the refrigeration system. The head pressure is the pressure on the high-pressure side of the refrigeration cycle, which is maintained by the compressor. The head pressure regulating valve helps to control this pressure to ensure efficient operation of the system.
The other answer choices are incorrect because:
A) A thermostatic expansion valve is used to control the flow of refrigerant into the evaporator, not the head pressure.
B) A suction pressure regulating valve is used to control the pressure on the low-pressure side of the system, not the head pressure.
C) An evaporator pressure regulating valve is also used to control the low-pressure side, not the high-pressure side.
Related Questions
#7 As shown in the illustrated refrigeration system piping schematic diagram with the various accessories and controls and equipped with an air-cooled condenser with high side pressure controls, what statement is true concerning the fan cycling control pressure switch? Illustration GS-RA-39 #8 What would be an indication that the vegetable box back pressure regulator is set too low? #10 The set point adjustment of the device shown in the illustration is made by rotating what component? Illustration GS-RA-14 #11 If it is necessary to increase the operating head pressure of the refrigeration system using the device shown in the illustration, what should be done? Illustration GS-RA-14 #12 An arrow stamped on the valve body of a water regulating valve indicates which of the following?