Linggo, Mayo 31, 2015

COP and operating time of day (running costs)

Just wondering if anyone can give me an idea of how much the coefficient of performance changes on a standard residential air conditioning unit based on the time of day (ie outdoor temperature) in which it is operated.

Essentially I want to know if it's worth while to delay turning the AC on in the afternoon and run the AC mostly at night (say 70-75 degrees external) as opposed to late afternoon (say 85-90 degrees).

I'm thinking of monitoring the compressor amperage to see what happens...

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