Non-condensables influence on high-side pressure when using a recovery device?

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Multiple Choice

Non-condensables influence on high-side pressure when using a recovery device?

Explanation:
Non-condensables raise high-side pressure by hindering heat transfer in the condenser. When gases like air or nitrogen are present with the refrigerant, they don’t condense and sit in the condenser, making condensation less efficient. The condenser must reject more heat to condense the vapor, so the condensing pressure goes up, and the compressor then pushes against this higher head pressure, increasing the high-side pressure. So the correct idea is that the high-side pressure increases.

Non-condensables raise high-side pressure by hindering heat transfer in the condenser. When gases like air or nitrogen are present with the refrigerant, they don’t condense and sit in the condenser, making condensation less efficient. The condenser must reject more heat to condense the vapor, so the condensing pressure goes up, and the compressor then pushes against this higher head pressure, increasing the high-side pressure. So the correct idea is that the high-side pressure increases.

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