Air Conditioning EER and COP
The air conditioning EER and COP numbers are a quick way of seeing how energy efficient an air conditioning unit is.
Choosing the correct size and type of heating or cooling system can have a huge impact on the household electricity and energy costs.
It is shown that heating and cooling costs account for an average of 30 to 40 percent of an average Australians household energy use.
An air conditioning EER and COP level can be used to determine how energy efficient an air conditioning unit is.
The COP value is a ratio that measures the energy efficiency of the HEATING performance.
The EER value is a ratio that measure the energy efficiency of the COOLING performance.
The COP is the Coefficient Of Performance.
This is a measurement of the amount of power input to a system compared to the power output by that same system.
The COP is therefore a measurement of efficiency; the higher the number, the more efficient the system is.
If we use an electric heater as an example, we can see that for each watt of power input (in electricity) we will get one watt of heat output. So, this heater would have an COP of 1.
An air conditioning unit transfers heat from one place to another with the help from a refrigerant and temperature and pressure variations.
During heating it will transfer unwanted cool air (from the room) to somewhere it is not needed (outside).
A 2.5Kw split system has a COP of about 5. This means that for every watt of energy used to run the air conditioning unit it will convert it into 5 watts of heat.
Usually the smaller the air conditioning unit is the higher the COP and EER ratio. Most air conditioning units have a COP of between 3.5 and 5kW.
The EER is the Energy Effiency Ratio.
This is the same as the heating ratio however it is used while the unit is cooling.
Usually the smaller the air conditioning unit is the higher the COP and EER ratio. Most air conditioning units have a COP of between 3 and 5kW.
Almost all new air conditioning units have the heating and cooling function. These units are called reverse cycle units.
Air conditioning units are by far the most energy efficient way to heat or cool an area.
An inverter air conditioning system, varies the speed of the compressor, delivering precise cooling or heating power as required. It is basically a variable speed motor.
This variable speed compressor makes them very energy efficient. The result is a powerful, quiet, precise, energy saving solution for your air conditioning needs.
The energy star rating is also an excellent way to check how efficient your air conditioning unit is.