PNNL

Abstract

This paper provides a summary of automated fault detection and diagnostics (AFFD) studies published since 2004 that are relevant to the commercial buildings sector. This review updates a previous one conducted in 2004 and published in 2005, and it categorizes AFDD approaches into three groups. The examples of AFDD in the primary category are selectively reviewed to identify various approaches that are suitable for building systems and to understand the strengths and weaknesses of the approaches. The distribution of studies based on each AFDD method and heating, ventilation, and air-conditioning (HVAC) system is also described. The commercially available AFDD products and services are identified and compared. Researchers and industries can use this paper as a guideline for selecting an appropriate AFDD method.