VERSOL SOLAR DRAIN BACK SYSTEM
A drain-back solar water heating system is a type of solar water heating system that uses a special type of control called a Vsol controller to prevent freezing and overheating of the solar collector.
In this system, water is circulated through a solar collector to absorb the heat from the sun. However, when the sun is not shining or when the temperature drops below freezing, the controller shuts off the circulation pump and drains the water from the collector and the associated piping, back into a storage tank or a drain-back reservoir.
By draining the water from the collector and associated piping, this type of system prevents freezing and overheating, which can cause damage to the collector and the piping system. In addition, the drain-back system allows for better heat transfer and efficiency, as the collector is not filled with water, which can absorb some of the heat.
Overall, drain-back solar water heating systems are a reliable and efficient way to provide hot water for homes and businesses, while also reducing energy costs and greenhouse gas emissions.
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