FDNY Respiratory Medical Officer Practice Exam 2025 – Complete Test Prep

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What is a possible consequence of failing to maintain water treatment in a refrigerant system?

Decrease in the heat exchange efficiency

Increase in the condenser pressure

Failing to maintain water treatment in a refrigerant system can lead to an increase in the condenser pressure. This is because untreated water can become corrosive or lead to scale buildup within the cooling system. When scale accumulates, it obstructs the flow of refrigerant and water, which impairs the system's ability to efficiently transfer heat.

As the flow is restricted, the refrigerant cannot effectively absorb heat from the substance being cooled, causing the pressure in the condenser to rise. A higher condenser pressure indicates that the system is experiencing inefficiency and potential operational problems, such as overheating or increased energy costs.

Effective water treatment is essential because it helps prevent scale formation and corrosion, ensuring that the refrigerant system operates smoothly and maintains optimal performance, including proper heat exchange and stable pressure levels.

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Reduction in overall energy consumption

Saturation of the evaporator coil

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