This chapter contains information about abbreviations and symbolsfor HVAC&R engineers. Abbreviations are shortened forms of names andexpressions used in text, drawings, and computer programs. This chapter discussesconventional English-language abbreviations that may be different in otherlanguages. A letter symbol represents a quantity or a unit, not its name, andis independent of language. Because of this, use of a letter symbol ispreferred over abbreviations for unit or quantity terms. Letter symbolsnecessary for individual chapters are defined in the chapters where they occur.

Abbreviations for Text,Drawings, and Computer Programs
Letter Symbols
Dimensionless Numbers
Mathematical Symbols
Subscripts
Graphical Symbols forDrawings
Piping SystemIdentification
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