Learn how Fault Detection and Diagnostics (FDD) systems continuously monitor BMS data to automatically identify HVAC equipment faults, inefficiencies, and degraded performance — and how to implement FDD in commercial buildings.
Fault Detection and Diagnostics (FDD) is the automated identification of abnormal conditions (faults) in building systems and their root causes (diagnostics). FDD systems continuously analyze data from the BMS — sensor readings, equipment run statuses, control signals, energy consumption — and compare them against expected behavior to identify when equipment is malfunctioning or operating inefficiently.
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