Плоский нагреватель солнечные водонагревательные (последний продукт)

Our flat plate solar water heater : SEPARATED solar water heater system(SPFS) Includes heat pipe solar collector (or U pipe soalr collector),pressurized water tank ,working station and expansion vessel (for closed loop only) Working station would include pump,controller and alol the other asscessories .It's a complete package. Working principle 1.When the discrepant temperature of flat plate solar collector and water tand reaches or not reaches the set value,the controller shall start or shut the circulation pump automatiically 2.The circulation pump makes water circulate automatically 3.In case the temperature of the water tank does not reach Tmax ,then start the anxiliary heating device