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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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Term Definition
lighting

natural or artificial illumination 

 
limit stat

controller designed to provide limit control.

 
limit stop

physical stop or device that prevents an operator from adjusting the set point of a controller beyond a maximum or minimum setting, often for safety 

 
linear regression


finding of a straight line that best fits the data points, commonly by use of the least-squares technique 

 
linear swell

percentage increase in the length of a test specimen, usually an elastomer, as a result of exposure to refrigerants or oils.

 
liner

enclosure forming the interior of the general refrigerated compartment or some freezer compartment(s). The complete liner comprises the compartment liner in the cabinet, the exposed breaker strip surfaces, and the door liner(s).

 

 
liquefaction

change of state to liquid; generally used instead of the term, condensation, in cases of substances ordinarily gaseous.

 

 
liquid


state of matter intermediate between crystalline substances and gases in which the volume of a substance, but not the shape, remains relatively constant
 
liquid cooler


heat exchanger designed to cool liquids.

 

 
liquid line


tube or pipe carrying the refrigerant liquid from the condenser or receiver of a refrigerating system to a pressure-reducing device
 





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