... CCC, Keymark & CE approval Separated Pressurized Solar Water Heater, split solar water heater, solar water heater, ISO,CCC, Keymark & CE approval1, ... the building perfectlyIntelligent control and automatic operationAntifreeze: no water inside the tubes when it works, it can be ... still operate in the event of occasional tube breakages.System controller has the anti-freezing function, the temperature ...