Ambient Temperature: Temperature of the
surroundings, usually atmospheric air
Ampere (Amp): Unit of electrical current measurement
British Thermal Unit: A Unit of thermal energy defined as the amount
of heat required to raise the temperature of one pound of water one
Fahrenheit degree
Celsius Scale: A temperature scale based upon water freezing at 0ºC
and boiling at 100ºC
Change of Phase: The transition from or to solid, liquid and vapor
states
Condense: Change phase from vapor to liquid
Conditioned Space: The volume (generally air) being cooled or heated
Conduction: The transfer of heat through a solid as a result of a
temperature difference
Convection: The transfer of heat through the motion of a fluid
Delta-T: Short-hand for the "difference in temperature"
Delta-P: Short-hand for the "difference in pressure"
Dew Point: The temperature at which atmospheric water vapor will
condense to liquid
