Working principle: 1)When the discrepant of the solar collector and water tank reaches the set value, the controller shall start the circulation pump automatically. 2)The circulation pump makes heat-conducing liquid circulate automatically. 3)The heat-conducting liquid transfers heat to water by heat ehchanger in the water tank. 4)In case the temperature of the water tank dose not reach T max, then start the auxiliary heating device 5)If discrepant temperature of the collector and the water tank does not reach teh set value, the circulation pump shall be shut automatically,
Certificate:
Working principle: 1)When the discrepant of the solar collector and water tank reaches the set value, the controller shall start the circulation pump automatically. 2)The circulation pump makes heat-conducing liquid circulate automatically. 3)The heat-conducting liquid transfers heat to water by heat ehchanger in the water tank. 4)In case the temperature of the water tank dose not reach T max, then start the auxiliary heating device 5)If discrepant temperature of the collector and the water tank does not reach teh set value, the circulation pump shall be shut automatically,
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