It is the ratio of cooling delivered by a system, measured in BTUs, to the dollar cost of the electricity to run the system, as measured in watt-hours. This ratio is determined using specified federal test procedures. The higher the SEER, the more efficient the unit. The more efficient the unit, the lower the operating cost. Sensible Heat - Heat energy that causes a rise or fall in the temperature of a gas, liquid or solid when added or removed from that material.
Sensible heat changes the temperature by changing the speed at which the molecules move.
Single Package -A central air conditioner which combines both condenser and air handling capabilities in a single packaged unit. Split System - A central air conditioner consisting of two or more major components. This is the most common type of system installed in a home. Supercooled Liquid - Liquid refrigerant cooled below its saturation point. Subcooling - Creating a drop in temperature by removing sensible heat from a refrigerant liquid.