3 ms·
> There are quirks - the COP is different for lower temperatures, and becomes 1:1 at around 5F (-15C). It depends on the unit. Some (Mitsubishi FE12NA) have a
by throw0101a 6y ago
> There are quirks - the COP is different for lower temperatures, and becomes 1:1 at around 5F (-15C).
It depends on the unit. Some (Mitsubishi FE12NA) have a COP of 1.75 even at -10F / -20C. See Table 6:
* https://www.nrel.gov/docs/fy11osti/52175.pdf https://www.nrel.gov/docs/fy11osti/52175.pdf
- cgufus 6y agoThe used coolant mainly infleunces these numbers. check chart on: https://www.researchgate.net/figure/Coefficient-of-performance-COP-versus-evaporating-temperature-at-condensing-temperature_fig6_264859123 https://www.researchgate.net/figure/Coefficient-of-performan...