Glossary of Heating, Ventilation and Air Conditioning Terms

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Temperature

The measure of the intensity of heat that a substance possesses.


Thermostat

A temperature sensitive switch for controlling the operation of cooling and heating.


Thermostatic Expansion Valve

An automatic valve that feeds refrigerant  to the evaporator coil. The amount of refrigerant fed to the coil is based on the line temperature leaving the coil. This is the preferred method to feed refrigerant to the coil as it is more accurate than an orifice or flo-rator commonly used. This is commonly call the TXV.


Ton

A unit of measure for cooling capacity. One ton = 12,000 BTUs per hour.


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