The upper and lower limits of the solar water heater cycle are the maximum and minimum circulating water temperatures set during system design. According to relevant public information, when the water temperature reaches the upper limit of circulation, the circulation pump will automatically stop and stop sending water to the solar collector for heating. The upper and lower cycle limits of the solar water heater should be set according to the actual situation to ensure the normal operation, safety and reliability of the system. During the operation of the solar water heater, when the solar collector absorbs solar radiation, it transfers heat to the water in the water tank and increases the water temperature.
Requires installation of accessories.
1. Install a circulation pump between the two water tanks to pump hot water from the storage areaupper and transport it to the lower cold water storage area through pipes to form an alternating flow.
2. Install a thermostat on the top of the water tank. When the water temperature reaches a certain temperature, the circulation pump automatically begins to circulate hot water to the lower cold water storage area to ensure balanced water temperature throughout the water tank. water.
3. Install a valve between the upper and lower parts of the water tank. When the water level in the upper hot water storage area decreases, the valve automatically opens to circulate water from the lower cold water storage. Top hot water storage area to ensure that water into the water tank. Water levels are stable.