“…Outlier detection, PCA 25 Zhao et al [211] Chiller Virtual sensor Virtual fouling monitor sensors 26 Li et al [212] Chiller Sensor fault NA 27 Yan et al [213] AHU Sensor fault NA 28 Wang et al [214] VAV terminal Sensor fault NA 29 Yan et al [215] Chiller Feature selection from available sensors Feature selection with back-tracing sequential forward feature selection 30 Sun et al [216] Chiller Sensor data analysis/mining, sensor fault Data fusion 31 Hu et al [217] Chiller Sensor data analysis/mining, sensor fault Sensitivity of chiller sensor fault detection-based on PCA 32 Dey and Dong [218] AHU Sensor fault NA 33 Yang et al [219] AHU Sensor fault NA 34 Padilla and Choiniere [220] AHU Sensor fault NA 35 Kim et al [221] IAQ Sensor fault validation, PCA on sensor Sensor validation 36 Li et al [222] AHU Feature selection from available sensors NA 37 Kim and Braun [223] Chiller Virtual sensor NA 38 Shahnazari et al [224] VAV terminal Sensor fault, sensor data analysis/mining Sensor-fault-tolerant control 39 Wang et al [225] Chiller Feature selection from available sensors NA 40 Li et al [226] Outdoor unit of VRF Additional and built-in/existing sensors, sensor data analysis/mining Data mining using only built-in/existing sensors 41 Fernandez et al [227] AHU Sensor fault NA 42 Karami and Wang [228] Chiller Feature selection from available sensors, sensor fault NA Najafi [229] AHU Additional and built-in/existing sensor Sensor network architectures not necessarily designed solely for diagnostic purposes 44 Dey et al [230] HVAC terminal unit Sensor layout/location Impact of lacking sensor location 45 Kim and Braun [231] Chiller Virtual sensor NA 46 Pourarian et al [232] FCU Sensor fault FDD algorithm adap...…”