Efficiency key to Toyesi Heat Pumps.
Toyesi heat pumps are built to have an average COP of 5 between 15C to 18C ambient conditions.
Some companies use EER, SEER or HSPF as references for heat pumps or chillers. Although useful as a guide these values are based around the use of BTUs rather than kW as their energy rating systems.
For Estimation Purposes.
COP = Energy out (kW) / Energy used (kW)
SEER = EER ÷ 0.9
SEER = COP x 3.792
EER = COP x 3.413
HSPF = COP x 3.792
Brief Term Explanation:
COP ~ Coefficient of Performance – Usually used in heating, but can be used in cooling applications.
EER ~ Energy Efficiency Ratio – Usually only used in cooling applications
SEER ~ Seasonal Energy Efficiency Ratio – This is used as a typical seasonal performance in a given location. So SEER values are usually only project based values.
HSPF ~ Heating Seasonal Performance Factor ~ basically the same as SEER but for heating only. So HSPF values are usually only project based values.
a COP of 5 is equivalent to an EER of 17, a HSPF or SEER of around 19