What is the primary purpose of a purge unit on a CFC-11 chiller?

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The primary purpose of a purge unit on a CFC-11 chiller is to remove noncondensables from the system. Noncondensables, which can include air and other gases that do not condense under the operating conditions of the refrigeration cycle, can accumulate in a chiller, leading to inefficiencies and potential damage. These gases can cause an increase in the pressure of the system, decrease its cooling efficiency, and may even cause the compressor to work harder, resulting in increased energy consumption and possible failure.

By using a purge unit, the system effectively maintains a higher efficiency and operational reliability by actively eliminating these noncondensable gases, ensuring that the chiller can perform its intended function without unnecessary strain. This purging process is vital for maintaining optimal operating conditions and ensuring the longevity of the refrigeration equipment.

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