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Project Info COMPLETE Project Title

Residential Quality Maintenance Unitary Air Conditioner Fault Detection & Diagnostics

Project Number ET11PGE5261 Organization PG&E End-use HVAC Sector Residential Project Year(s) 2011 - 2012
Description
Quality Maintenance (QM) of residential heating ventilation and air-conditioning (HVAC) systems is defined by ANSI/ACCA Standard 4 (ACCA4) . To implement the standard, a technician needs to take measurements and do the analysis necessary to perform fault detection and diagnostics (FDD). In support of QM, a multiple metric / multiple fault (MMMF) protocol is set forth. The required accuracies of instruments used to make measurements to calculate refrigeration system performance metrics are established. These were used to choose a commercially-available software tool for development into a native software technician tool that runs on popular mobile smart devices such as phones and tablets.
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