How to deflate the heating?

Manual exhaust valves are generally installed at the top of each radiator side. Manual exhaust needs to be gently rotated with a suitable tool until the gas is completely exhausted and the water flows out stably, before the exhaust valve can be closed. If the old radiator can neither drain nor exhaust, you can gently puncture the exhaust hole with a sewing needle, and you can exhaust normally when you hear the sound of exhaust.

2, floor heating exhaust steps

Close the heating main supply and return valve, close the regulating valves of each loop of the floor heating distribution manifold, and open the main return valve. First, open the upper and lower regulating valves of the first route on the distribution manifold, then open the exhaust valve to drain and exhaust, then close this valve after exhausting, and then open the next regulating valve. And so on, until the air in each path is exhausted and a steady stream of water flows out. It is recommended to prepare towels and put them at the exhaust valve to avoid hot water splashing. Open the water supply and return regulating valves and the main heating and water supply valves in the distribution manifold.

Close the heating main supply and return valve, close the regulating valves of each loop of the floor heating distribution manifold, and open the main return valve. First, open the upper and lower regulating valves of the first route on the distribution manifold, then open the exhaust valve to drain and exhaust, then close this valve after exhausting, and then open the next regulating valve. And so on, until the air in each path is exhausted and a steady stream of water flows out. It is recommended to prepare towels and put them at the exhaust valve to avoid hot water splashing. Open the water supply and return regulating valves and the main heating and water supply valves in the distribution manifold.

Extended data:

The heating in the bedroom beeps, like tapping the heating pipe with a thin wire.

Expert analysis: high heating temperature, unreasonable pipeline layout and stress on metal pipelines may all cause this situation. Generally speaking, domestic heating is buried in plastic pipes, which is not common, but sometimes this kind of "Dangdang" sound will be produced near the boiler. This kind of sound is caused by high working pressure, high temperature and thermal expansion of metal, but generally speaking, installing metal bellows at the outlet of boiler will not cause much problem.

References:

Qinyuan county people's government-correct exhaust method of heating equipment