EVI Air Source Heat Pump 1.-25 DC low temp, EVI design 2.Cop to 4.8, 410A 3. House ... house heating and cooling.Goldsun uses the most advanced low Temp Enhanced Vapour Injection compressor technology and have successfully produced the ... .init( { 'aImgSrc': aBigImageSrc } ); } )(); heat pump(evi air to water,low temp, -25 DC, split, CE, EN14511-2:2011, EN14511-2:2007 ...