Temperature difference control collector cycle In the solar hot water heating system, there is a collector temperature detector and a water temperature sensor. After the heat collecting system absorbs the solar radiation, the temperature of the heat collecting tube rises. When the temperature of the collector and the temperature difference of the water temperature of the water tank are set to Δt, the detection system The command is given, and the circulating pump inputs the cold water in the central water heater into the collector, and the water is heated and then returned to the water tank, so that the water in the water tank reaches the set temperature. 2. Floor heating pipe circulation system Add a hot water circulation pump to control the floor heating pipeline circulation through the controller. When the water temperature reaches the set temperature, the floor heating circulating pump is automatically activated, so that the high temperature water is circulated indoors through the floor heating coil, so that the indoor temperature is continuously increased. When the water temperature of the water tank is lower than a certain set value, the floor heating pump is automatically stopped. Aluminium High Speed Spiral Door Dongguan HengTaichang Doors Co, Ltd. , https://www.dghtcdoor.com