Seasonal energy efficiency ratio (SEER) rates an air conditioner’s efficiency. The Air Conditioning, Heating, and Refrigeration Institute defined it in 2008.
A machine’s SEER rating is its cooling output in a typical cooling-season divided by its total energy input in the same timeframe. It is directly proportional to the energy efficiency of equipment. In America, it is calculated by dividing the British thermal unit (BTU) with the energy consumption in watt-hours. This is important in ensuring your equipment runs efficiently and effectively.

How Does SEER relate with EER and COP?

A cooling machine’s energy efficiency ratio (EER) is calculated by dividing the output cooling power (BTU) with its input electrical power (Wh) at a particular operation point. To calculate the EER, you should use 95F external temperature, the internal 80F temperature and the 50% relative humidity.

EER is associated with the coefficient of performance (COP).It’s common in thermodynamics whereby an air conditioners COP is a unit less than the EER. Also, EER uses several units as it is calculated by multiplying the BTU/h conversion factor by the COP.

Maximum SEER Rating

Some modern ductless air conditioners have SEER ratings 0f 33.also, other residential AC units have maximum SEER ratings of 75.However, a ground-source heat pump’s effective efficiency depends on the water source temperature.

Usually, hot regions have a higher ground temperature than cold places hence not being able to reach such high efficiencies. Also, ground heat pumps’ ARI rating enables them to function without reaching their maximum pump power. It reduces the SEER values to be below their highest efficiency. Moreover, there are varying technologies which permit EER and SEER ratings to increase. Some of them include inverters, DC motors, rotary compressors and variable speed drives.

Are you planning to purchase a new air conditioner? P & M Air Conditioning and Heating serve people living in Houston. We provide them with a variety of services including indoor air quality, heating and AC installation, comprehensive repair and maintenance services to enhance the comfort, efficiency, and lifespan of their equipment. Visit our Houston office for more information.

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May 1, 2018 3:24 am