COP of Heatpump based on outdoor air temperature

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Hi All, @MingboPeng
Do you know how to calculate the COP and SEER of the Air Source Heat pump for cooling and heating mode based on outdoor air temperature?
Heating/cooling Coil Performance Curves work based on what?
do you have any resources to explain these numbers and processes?
thank you for your help

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Hi @miladheirani

For heating:
COP_heating = Input Power (kW)/Heating Capacity (kW)

For cooling:
COP_cooling = Input Power (kW)/Cooling Capacity (kW)
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SEER= Total Electric Energy Input (Wh)/Total Cooling Output (Btu)
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SEER is usually for the cooling.

ASHRAE 90.1 provides guidelines for SEER and COP calculations and HVAC performance.