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Fault Diagnosis Using a P-H Chart (F3)

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Fault Diagnosis Using a P-H Chart (F3)

The first two Fundamental bulletins in the series (F1 and F2) introduced the Pressure Enthalpy Diagram. This bulletin considers how these charts can be used to diagnose faults and help improve the efficiency of installed refrigeration and air conditioning systems. Being able to read and interpret a pressure-enthalpy chart (also referred to as p-h chart/ diagram and as a Mollier diagram) is a key skill for diagnosing problems and maximising efficiency.

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Fault Diagnosis Using a P-H Chart (F3)

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