01795nas a2200181 4500008004100000050001500041245009300056210006900149260001200218300001200230490000800242520124800250100001801498700001701516700002001533700001301553856004701566 2007 eng d aLBNL-6097900aA Semi-automated Commissioning Tool for VAV Air Handling Units: Functional Test Analyzer0 aSemiautomated Commissioning Tool for VAV Air Handling Units Func c01/2007 a380-3910 v1133 a

A software tool that automates the analysis of functional tests for air-handling units is described. The tool compares the performance observed during manual tests with the performance predicted by simple models of the components under test that are configured using design information and catalog data. Significant differences between observed and expected performance indicate the presence of faults. Fault diagnosis is performed by analyzing the variation of these differences with operating point using expert rules and fuzzy inferencing.

The tool has a convenient user interface to facilitate manual entry of measurements made during a test. A graphical display compares the measured and expected performance, highlighting significant differences that indicate the presence of faults. The tool is designed to be used by commissioning providers conducting functional tests as part of either new building commissioning or retro-commissioning, as well as by building owners and operators conducting routine tests to check the performance of their HVAC systems. The paper describes the input data requirements of the tool, the software structure, the graphical interface, and summarizes the development and testing process used.

1 aHaves, Philip1 aKim, Moosung1 aNajafi, Massieh1 aXu, Peng uhttp://gaia.lbl.gov/btech/papers/60979.pdf02109nas a2200157 4500008004100000024001700041050001500058245005600073210005300129260002200182520161100204100001301815700001801828700001701846856008801863 2005 eng d aLBNL/PUB-933 aLBNL-5864800aA Semi-Automated Functional Test Data Analysis Tool0 aSemiAutomated Functional Test Data Analysis Tool aNew York City, NY3 a

The growing interest in commissioning is creating a demand that will increasingly be met by mechanical contractors and less experienced commissioning agents. They will need tools to help them perform commissioning effectively and efficiently. The widespread availability of standardized procedures, accessible in the field, will allow commissioning to be specified with greater certainty as to what will be delivered, enhancing the acceptance and credibility of commissioning. In response, a functional test data analysis tool is being developed to analyze the data collected during functional tests for air-handling units.

The functional test data analysis tool is designed to analyze test data, assess performance of the unit under test and identify the likely causes of the failure. The tool has a convenient user interface to facilitate manual entry of measurements made during a test. A graphical display shows the measured performance versus the expected performance, highlighting significant differences that indicate the unit is not able to pass the test. The tool is described as semi-automated because the measured data need to be entered manually, instead of being passed from the building control system automatically. However, the data analysis and visualization are fully automated. The tool is designed to be used by commissioning providers conducting functional tests as part of either new building commissioning or retro-commissioning, as well as building owners and operators interested in conducting routine tests periodically to check the performance of their HVAC systems.

1 aXu, Peng1 aHaves, Philip1 aKim, Moosung uhttps://simulationresearch.lbl.gov/publications/semi-automated-functional-test-data