Entering April, the hot heating period ends, and PEX Expansion Fittings in many people's homes are basically ignored, but when they are heated again, problems will arise. Blockage and lack of heat are trivial things. Once there is a "water overflowing golden mountain", if you don't say anything about it, you will also harm your neighbors and cause heavy losses. So, do you know how to maintain the geothermal and radiator to extend the service life after the heating period is over? Provide everyone with a maintenance "dry goods".

Cheats 1
After the supply is stopped, it is time to clean the geothermal
"Many people think that the cleaning of geothermal should be in the early stage of heating. In fact, the timing of cleaning is at the end of heating." After the supply is stopped, look for two water pipes, one connected to the faucet and the geothermal water inlet, and the other to connect the sewer and the geothermal return. . Then turn on the faucet to release the water, and close the valve after the discharged water turns from muddy water to clear water.
After the heating is stopped, the geothermal is cleaned to remove impurities during the heating season and prevent the accumulation of geothermal pipes and corrosion of the geothermal pipes. Keeping clean water in the pipeline is also helpful to prevent the aging of the pipeline.
In addition, when the heating is stopped, the problems found during heating should be solved in time. Aging or damaged parts should be replaced in time, and the heating effect of individual rooms should be found for reasons.

Cheats 2
Close the geothermal main valve after the heating is stopped
After the heating is stopped, the water in the geothermal pipeline will basically not circulate. But for the sake of safety, it is recommended to turn off the main valve, which can ensure that the domestic geothermal pipeline is separated from the central heating pipeline and avoid accidents. Turning off the main valve is the same as turning off the main water valve and gas at home during a long business trip.

Cheats 3
It’s not too late to overhaul after geothermal problems
At present, there are many professional geothermal maintenance companies on the market that can provide overhaul and maintenance of geothermal pipelines. In fact, if geothermal energy is not overhauled, it will not be overhauled, and it is not too late to overhaul after problems occur. Because geothermal heating is not like surface heating, the geothermal pipelines are all underground. As long as they are installed in accordance with the specifications during the construction design, there will generally be no problems. However, if there are problems such as water seepage or loose valves, they must be dealt with in time. General problems should be dealt with before the heating period. Before each heating period comes, there will be a water test and pressure test stage, which is a good opportunity for maintenance. One more thing to remind everyone is that filtering devices such as the filter screen of the indoor water separator, the sewage valve, and the filter screen in the corridor pipe well are generally cleaned once every 1-2 years to ensure the smoothness of the entire geothermal system.

Cheats 4
The water separator must be of good quality
The water separator is the main channel of the entire geothermal heat. It is recommended that you replace it when you stop heating. When possible, try to choose high-quality plumbing materials when installing geothermal. Especially the materials for concealed projects must not be cheap. If the quality of the diverter switch used is not good or other damages or malfunctions occur, very difficult problems will really arise.
Cheats 5
Old-fashioned cast iron radiator full of water maintenance
So how to maintain the radiator after heating? Liu Fei said, first of all, we need to determine what type of radiator we are using.
The maintenance methods of radiators of different materials are not the same. If it is an old-fashioned cast iron radiator, full water maintenance is required. Because the oxygen in the air will cause oxidation and corrosion to the iron radiator, full water can keep the oxygen content in the radiator low, reduce corrosion, and extend the service life; if it is a new type of radiator, such as a copper-aluminum composite radiator, it is not necessary Full water maintenance.
In general, no matter what kind of radiator, after stopping heating, you need to close the heating return valve, open the air release valve, and then close the water inlet valve after air is released.

Cheats 6
Check the radiator for leaks in time after the heating is turned off
After a heating period, the surface of the radiator and PEX Cold Expansion Fittings in the heating room will inevitably have dirt adhered to it. After the heating is turned off, wipe it with a clean cloth. It is strictly forbidden to use strong corrosive solution when wiping, nor to use sharp or sharp objects to scrape, so as not to damage the surface and bring hidden dangers.
After the heating period is over, the system will expand and contract when heated, and the old radiator should be checked for looseness and leakage at various joints and heating vent valves. The new radiator inspection is to check the air cushion. If there is a problem of water leakage or serious corrosion, you should contact the person in charge of the heating enterprise area or call the customer service hotline to achieve timely control and timely treatment.