Question 84Refrigeration/AC - Assistant Engineer70% to pass
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
AI Explanation
The correct answer is D.
When adding refrigerant as a vapor to the low side of the refrigeration system, the hose labeled "H" should be connected to the suction service valve service port, the hose labeled "J" should be connected to the vapor valve on the refrigerant cylinder, and the valve labeled "G" should be open. This allows the refrigerant vapor to flow from the cylinder into the low-pressure side of the system.
The other options are incorrect because they either have the hoses connected to the wrong ports or have the valve in the wrong position, which would not allow the refrigerant vapor to properly enter the system.
Related Questions
#82 What is the drive arrangement of refrigeration compressor shown in figure "B" of the illustration? Illustration GS-RA-41 #83 Which of the valves listed is normally closed when charging the refrigeration system through the high side? #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 #87 For the proper control of the air temperature in an air conditioning system using chilled water circulation, which of the listed conditions should remain constant regardless of load changes?