Current Based HVAC Systems Air Filter Diagnostics and Monitoring

  title={Current Based HVAC Systems Air Filter Diagnostics and Monitoring},
  author={Fadi Alsaleem and Michael R Munroe and Mostafa RAFAIE},
This paper addresses the use of continuous indoor motor current to detect filter blockage in HVAC system. A commonly known phenomenon exists in the loading of a typical indoor motor blower that results in a power consumption decrease and hence less current draw for PSC motor, and power and currant draw increase for constant torque motor. Testing using Akaike information criterion (AIC), classification and regression tree (CART) models, and using both fixed radius basis function and linear basis… CONTINUE READING