Glossary of Applied Air HVAC Terminology

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
W
Watt, the SI unit of power. In electricity it is Volts x Amps.
WB
Wet Bulb
WC (Water Column)
Common measure of air pressure used in HVAC systems.
Wet-bulb Temperature
When a wet wick is placed over a standard thermometer and air is blown across the surface, the water evaporates and cools the thermometer below the dry-bulb temperature. This cooler temperature (called the wet-bulb temperature) depends on how much moisture is in the air.