Question 4Refrigeration & AC - QMED
70% to passIn a refrigeration system that is not protected by a water failure switch, if the cooling water to the condenser fails, what will be the result for protective purposes?
Athe king valve will open
Bthe box temperature solenoid valve will close initiating a pump down
Cthe compressor will shut down by the action of the high-pressure cutout switch
Dthe expansion valve will close due to high superheat
AI Explanation
The correct answer is C) the compressor will shut down by the action of the high-pressure cutout switch. In a refrigeration system without a water failure switch, if the cooling water to the condenser fails, the pressure in the condenser will rise rapidly. This high pressure will trip the high-pressure cutout switch, which is a safety device designed to shut down the compressor to prevent damage from the excessive pressure. The other options are incorrect because they do not accurately describe the protective actions that would occur in this scenario.
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