COP 03
COP 03 :
An abbreviation for coefficient of performance, a measure of the efficiency of heat pumps, air conditioners, refrigerators, and freezers. The COP is the ratio of the useful energy output of the system (the amount of heat energy added to or removed from the building) divided by the electric energy input when the unit is operating in a steady-state test condition. Typical values are in the range 2-4. (The energy "output" exceeds the input, because the system only uses the input energy to move heat energy, not to create it.) Heat pumps have a higher COP for heating than for cooling, because the compressor's input energy produces heat energy that can be used in heating but must be dissipated outdoors for cooling. For air conditioners, the COP equals the energy efficiency ratio (EER) divided by 3.412
