When testing a water cooled condenser, what is the maximum allowable difference between the refrigerant condensing temperature and the leaving water temperature?

The maximum allowable difference between the refrigerant condensing temperature and the leaving water temperature is significant for ensuring efficient operation of a water-cooled condenser. A difference of around 10°F indicates that the condenser can maintain effective heat transfer between the refrigerant and the water.

This temperature difference is crucial because if it becomes too large, it may indicate that the condenser is not performing optimally, which could lead to reduced efficiency, potential overheating, or even mechanical failure. A well-designed system typically aims for a temperature differential in the range of 10°F, which balances the need for effective cooling with system constraints.

Understanding this limit helps technicians ensure proper setup and maintenance of the cooling system, preventing issues that could arise from excessive temperature differences, such as increased energy consumption or installation of oversized equipment. Therefore, the correct choice reflects industry standards for maintaining optimal performance and reliability in water-cooled condensers.