... , competitive price & good service 2,easyly installation, energy-saves Copper Coil Exchanger Split Pressure solar System Structure:The split solar water ... temperature of the solar collector and water tank reaches the set value, the controller shall start the circulation pump automatically. 3 ... ,250L, 300L,400L,500L6) Pressure: 0.6MPa (6 bar) Copper Coil Exchanger Split Pressure solar System