Question 83Refrigeration/AC - Assistant Engineer70% to pass
Which of the valves listed is normally closed when charging the refrigeration system through the high side?
AI Explanation
The correct answer is A) Liquid line king valve.
When charging a refrigeration system through the high side, the liquid line king valve is normally closed. This allows the refrigerant to flow into the high-pressure side of the system, charging it with the necessary refrigerant. The other valves listed are not the correct choice - the dehydrator inlet valve, suction line valve, and thermal expansion valve serve different functions in the refrigeration system and are not involved in the charging process through the high side.
Related Questions
#81 A device used to hold open the refrigeration compressor suction valve during starting to reduce the compression load is called what? #82 What is the drive arrangement of refrigeration compressor shown in figure "B" of the illustration? Illustration GS-RA-41 #84 Using the device shown in the illustration, which of the following statements is true when adding refrigerant as a vapor to the low side of the refrigeration system? Illustration GS-RA-01 #85 When a refrigeration system is being topped off with a small amount of refrigerant through the low side with the compressor running, what should be done? #86 After the refrigerant has been recovered, leaks repaired if necessary, the system ideally should undergo a dehydration evacuation prior to recharging with refrigerant. As shown in the illustration, besides the vacuum pump suction manifold isolation valve being opened, what would be the proper valve positions to accomplish and prove the evacuation? Illustration GS-RA-51