If water treatment is neglected in a refrigerant system, condenser pressure tends to rise.

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Prepare for the New York City Refrigeration License Exam I. Utilize flashcards, multiple-choice questions, and detailed explanations to boost your readiness. Ace your licensing exam!

Multiple Choice

If water treatment is neglected in a refrigerant system, condenser pressure tends to rise.

Explanation:
When water treatment is neglected, minerals and impurities form scale and fouling on condenser tubes, which lowers the heat transfer efficiency of the condenser. Because heat isn’t rejected as effectively, the refrigerant cannot condense as easily at the design operating conditions. To drive condensation with reduced heat rejection, the system ends up operating at a higher saturated condensing temperature, which translates to a higher condensing pressure. In short, fouling makes the condenser less effective at removing heat, so the head (condenser) pressure rises.

When water treatment is neglected, minerals and impurities form scale and fouling on condenser tubes, which lowers the heat transfer efficiency of the condenser. Because heat isn’t rejected as effectively, the refrigerant cannot condense as easily at the design operating conditions. To drive condensation with reduced heat rejection, the system ends up operating at a higher saturated condensing temperature, which translates to a higher condensing pressure. In short, fouling makes the condenser less effective at removing heat, so the head (condenser) pressure rises.

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