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List of AHU faults used in the analysis.
| No. | Abbreviation | Fault Type | Component | Sample Size |
|---|---|---|---|---|
| Fault 1 | FPES_M | Fan pressure sensor malfunction | Fan pressure sensor | 894 |
| Fault 2 | HR_NW | Heat recovery not working | Heat recovery | 1146 |
| Fault 3 | HCV_L | Heating coil valve leakage | Heating coil | 794 |
| Fault 4 | CCV_S | Cooling coil valve stuck | Cooling valve | 434 |
| Fault 5 | CCC_V | Closed cooling coil valve | Control | 768 |
| – | Normal | – | – | 20,925 |
