Integrated control and fault detection of HVAC equipment
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United States of America Patent
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-
May 1, 2001
Grant Date -
N/A
app pub date -
Aug 5, 1999
filing date -
Aug 5, 1999
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Fault detection is implemented on a finite state machine controller for an air handling system. The method employs data, regarding the system performance in the current state and upon a transition occurring, to determine whether a fault condition exists. The fault detection may be based on saturation of the system control or on a comparison of actual performance to a mathematical model of the air handling system. As a consequence, the control does not have to be in steady-state operation to perform fault detection.
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