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Which consequence results when water ingress compromises chiller insulation?

A)Lower Coefficient of Performance (COP)
B)Increased refrigerant subcooling margin
C)Reduced compressor volumetric efficiency
D)Decreased oil return rate

💡 Explanation

A compromised insulation layer introduces thermal bridging, increasing heat transfer. This raises the required heat rejection and reduces chiller efficiency via reduced Coefficient of Performance (COP) because overall chiller capacity degrades with compromised external Insulation rather than other internal refrigerant cycle issues.

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