ESCO Air Conditioning Practice Exam

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When testing the efficiency of a water-cooled condenser, the refrigerant condensing temperature should be approximately _________ higher than the leaving water temperature.

10°F
20°F
30°F
40°F

The correct answer is: 10°F

When testing the efficiency of a water-cooled condenser, the refrigerant condensing temperature should be approximately 10°F higher than the leaving water temperature. This temperature difference ensures that the heat transfer process is efficient in the condenser. A larger temperature difference would indicate that the condenser is not effectively transferring heat from the refrigerant to the water, while a smaller temperature difference would suggest that the condenser may not be operating at its optimal efficiency. Therefore, a 10°F temperature difference is a common and appropriate value to ensure efficient operation of a water-cooled condenser.