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Glossary

 

The terms and definitions included in this glossary were taken from "ASHRAE Terminology of Heating, Ventilation, Air Conditioning & Refrigeration".
To access the complete glossary please visit ASHRAE's Bookstore.


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overshoot


1. condition in a control system where the controlled variable exceeds the desired set point as a result of approaching that set point too quickly.

2. amount of the overtravel of an indicator beyond its final steady deflection when a new constant value of the measured quantity is suddenly applied to the instrument.

3. excursion of the controlled variable beyond the differential or proportional band 

 





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