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  The separated pressure-bearing water heater is composed of solar collector, water tank and controller.Working principle:1.  When the discrepant temperature of the solar collector and water tank reaches the set value, the controller shall start the circulation pump automatically.2.  If the discrepant temperature of the collector and water tank does not reach the set value, the circulation pump shall be shut automatically.3.  The circulation pump makes the heat-conducting liquid circulate automatically.4.  The heat-conducting liquid transfers heat to water by heat exchanger in the water tank.5.  In case the temperature of the water tank does not reach maximum, then start the auxiliary heating device.Features:1.  Pipeline is made of all red copper and conducted by heat transfer medium liquid.2.  Water doesnt flow in the vacuum tubes, and if one of the tubes is broken, the water in the water tank would not leak out. The sol