EVI Air Source Heat Pump 1.-25 DC low temp, EVI design 2.Cop to ... and avoid any anfifreeze problem.2. 43°C ~-25°C wide range use. EVI air to water heat ... zero 5 °C , EVI technology importantly increase refrigerant flow of the main loop and outside evaporation enthalpy difference, ... ': aBigImageSrc } ); } )(); heat pump(evi air to water,low temp, -25 DC, split, CE, EN14511-2:2011, EN14511-2:2007, NFPAC ...