Question 166Refrigeration & AC - Assistant Engineer
70% to passThe pressure in the part of a high-pressure refrigeration system about to be opened for a non-major repair should be brought to what value?
A0 psig
B1 to 2 psig
C4 to 7 psig
D11 to 12 psig
AI Explanation
The correct answer is A) 0 psig. The pressure in the part of a high-pressure refrigeration system about to be opened for a non-major repair should be brought to 0 psig to ensure the system is fully depressurized before being opened. This is a safety requirement to prevent the sudden release of high-pressure refrigerant, which could cause injury. The other options are incorrect because they do not represent a fully depressurized system, which is the necessary condition for safely performing non-major repairs on a high-pressure refrigeration system.
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