Calculating COP on a mini split?
Saw on another post Akos mentioned you can calculate a rough COP number on your mini split with the below forumula. I know many people on here have electricity monitors on their splits and with just a thermometer and the fan cfm off your submittal sheet its pretty easy. I have been recording my return and supply temperatures on both my units as well as electricity consumption.
Its currently 50 degrees here and my unit is running at a COP of 8.
CFM on low 250 off the fan data
Delta t of 20
Drawing 200 watts.
From Akos post
COP=(RatedCFMofHead*deltaT*1.08/3412) / CompressorPower
Does that look correct? Has anyone else calculated their COP.
I attached screenshots of my live data.
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