... -40C,Solarkeymark Certificate,multi-function Specification of Speparate pressure solar water heater1)Solar collector passed EN12975,and get ... coil,double coils,single coil7)Use intelligent controller and Wilo brand Circulate pump8)System working pressure is 6bar9)can ... Tank capacity from 100L to 500LWorking principle of Split pressure solar water heatera) When the discrepant temperature of ...