Emerging Technologies: Packaged Rooftop Units: Automated Fault Detection and Diagnostics

By Michael Y. Feng, Ph.D., Associate Member ASHRAE; Kurt W. Roth, Ph.D., Associate Member ASHRAE; Detlef Westphalen, Ph.D., Member ASHRAE; and James Brodrick, Ph.D., Member ASHRAE ASHRAE / 2005 / 3 pages

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Packaged rooftop units (RTUs) account for about 60% of commercial building cooling energy consumption.1 Several studies found that more than half of all RTUs suffer from faults that result in inefficient operation, including improper refrigerant charge, insufficient evaporator airflow, faulty economizers, and fouled condensers and evaporators.

Citation: ASHRAE Journal, Vol. 47, No. 4

Product Code(s): D-24714

This product is related to: Emerging Technologies: HVAC Fault Detection