This is a single tube series connection of radiator and a three-way natural loop connection. In order to prevent one radiator from stopping heating, it will affect the rest. In normal use, the valve on the riser is closed to ensure that hot water passes through the radiator. If the room temperature needs to be lowered, the middle riser can be opened correctly to reduce the hot water flowing into the radiator.
When this group of heaters fails and the room is vacant and needs to be closed, open the valve of the middle riser and close the water supply and return valve on the radiator, so that the heated water can be circulated from the riser to the next group of radiators.
Extended data:
The introduction of heating return pipe is as follows:
During the first heating operation, due to the pressure in the pipeline and the resistance of water, it is easy to generate air pressure, which leads to non-circulation, uneven supply and return water temperature, and should be discharged one by one. We should know that when the steel column is filled with water and heated in the pipeline, there will be a certain amount of gas, which may lead to "floor heating and water inflow". Open the exhaust valve and exhaust directly until the hot water is released.
Insufficient circulating power and water pressure, resulting in the heating is not hot. There will be some water pressure in the heating inlet pipe and return pipe. According to the water pressure, hot water circulates. If the water pressure is insufficient and hot water cannot flow into return pipe, there will be a phenomenon that return pipe is not hot.
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