Question 38Refrigeration & AC - QMED

70% to pass

Loss of refrigerant during the process of purging of air and non-condensable gases can be kept to a minimum by what action?

Apurging through the discharge service valve rather than the top of the condenser
Bpurging through the top of the receiver rather than the top of the condenser
Cpurging through a dehydrator
Dcracking the purge valve briefly and allowing the refrigerant to re-settle between purges
AI Explanation

The correct answer is D) cracking the purge valve briefly and allowing the refrigerant to re-settle between purges. This is the correct answer because briefly cracking the purge valve and allowing the refrigerant to re-settle between purges helps minimize the loss of refrigerant during the process of purging air and non-condensable gases. By allowing the refrigerant to re-settle, less refrigerant is expelled from the system during each purge cycle, reducing overall refrigerant loss. The other options are incorrect because they do not directly address the key factor of minimizing refrigerant loss during the purging process. Purging through different valves or components may help with the purging process, but do not specifically target the issue of refrigerant loss.

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