In general, solar water heaters should be cleaned after one year of use. After that, they can be cleaned about once every three months.
Cleaning steps:
1. First, drain the water from the water heater to the 'interior.
2. Remove all vacuum tubes, use a long wooden stick, and tie a ball of cotton fabric with cotton rope to one end. The size of the cotton ball should be slightly larger than the inner diameter. of the vacuum tube, but not too big, just feel a little resistance, slowly pass it through the vacuum tube, rotate it, then rotate it. The vacuum tube should be filled with water. Finally, simply rinse it with clean water. Note that if there is not much scale, it is not necessary to clean it frequently, because when disassembling the pipe, the sealing ring is easily damaged, so check it carefully before facility. If it is damagedee, replace the sealing ring with a new one. one to make sure there is no water leak.
3. Open the water inlet of the solar water heater.
4. Add the solar water heater descaling agent to the water storage tank.
5. Automatic heating cycle for 20-30 minutes, so that the descaling agent solution comes into full contact with all parts.
6. Open the drain port and drain the cleaning fluid.
7. Fill the water tank with water, then circulate it for two minutes.
8. Drain the circulating water, clean and descale.
Detailed information:
Daily maintenance
1. When installing a solar water heater, there may be a smell of dust or oil in the water pipe when using it. the first time you can first open the robine. Get rid of the clutter.
2. The water stored in the solar water heater should be discharged regularly depending on local water quality conditions. Drain time can be selected in the morning when the sensor temperature is lower.
3. The surface of the solar water heater should be wiped regularly depending on the amount of dust in the area. It can be cleaned when it rains. It is possible to keep the surface of the water heater clean.
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higher thermal collection efficiency.
4. When hot water is not used for several consecutive sunny days, the hot water temperature will be very high. When using the solar water heater, please turn on the cold water first, then turn on the cold water. hot water to avoid burns.
5. There is usually a filter device at the outlet end of the faucet. Scale and debris in the water line builds upmulate on this screen. It should be removed and cleaned regularly to increase water flow. smooth exit.
6. In winter, it is very common for pipes to freeze. If it turns out that the pipe has frozen but is not yet cracked, it can usually be cleaned automatically after the temperature rises. You can also use a hair dryer to blow on the water line, or wrap a towel around the water line and then slowly pour warm water over it. Do not cook it on fire, hit the water pipe, or scald it with boiling water, because. this will cause the pipe to burst. Multiple freeze blockages can easily cause pipes to freeze and crack. Pipe insulation measures must therefore be reinforced.
7. Solar water heaters should be cleaned, inspected and disinfected on average every two to three years. Users can alsodo it themselves.Carry out disinfection work. For example, you can buy a disinfectant containing chlorine and pour it into the water inlet, soak it for a while, and then release it, which can achieve a certain disinfection effect.
8. Solar water heaters need to be cleaned inside the vacuum tube every two to three years on average to prevent scale from forming inside the vacuum tube and affecting the heat absorption effect.
9. If the solar water heater is equipped with a special instrument, please pay attention to lightning and electricity protection. Do not take a shower and unplug the electric heater during thunder.
References:
How to clean the solar water heater
1. Remove it. solar vacuum tube, vpour appropriate amount of white vinegar and soak for 10 minutes, then use a brush to pull back and forth to remove the remaining scale, and simply pass clean water on both sides. But be sure to handle it with care, as vacuum tubes are very fragile.
2. If it is inconvenient to remove the vacuum tube, you can open the water inlet of the solar water heater and pour white vinegar into the storage tank. water. Allow the water heater to circulate automatically for 20 to 30 minutes to allow the white vinegar to fully contact all parts, then open the drain and drain the white vinegar that cleaned the scale. Finally, fill the water tank with water and circulate it again for 2 minutes, then drain the circulating water.
3. Buy a special solar descaler, mix it with water in a ratio of 1:10, prepare a neat solution.cleaning and add it to the water tank. If the water heater in the house has not been cleaned for a long time, you can also pour the original solution directly into it and let it soak for 5 to 15 minutes to disintegrate the scale. Let it cycle automatically for 20 to 30 minutes, then drain the cleaning fluid directly from the drain. .Turn on the water supply, fill it with water then circulate it for two minutes, then drain it and that's it.
To clean the solar water heater, you need to remove the hose, drain the water and then rinse.
1. When cleaning the solar water heater, first slowly remove all the sealing rings, then disassemble the solar tubes one by one. During this step, make sure to wear gloves to avoid scratches. your hands.
2. After removing the hose, you will find that a lot of water will flow out of the hose. Empty the water from the solar pipe.
3. Lors disassembly of solar pipes, especially those that have rusted for a long time, it is more laborious. Be sure to remove them carefully and slowly. force to avoid scratches.
4. After draining the water from the solar pipeline, rinse it with clean water. Because the solar pipeline water consists of sewage and dirt, we need to flush it again with a large amount of clean water. .
5. After rinsing for a while, dip some detergent diluent on the top of the solar pipe, then install it into the solar pipe. If you succeed, just rinse it with clean water at this time.
Methods to reduce scale in solar water heaters:
1. The hot water in the bucket should be refilled in time after use in summer, which can reduce the temperature of the water in the bucket.
2. Use hot water as much as possible in summer, then fill it with wateru tap in time to lower the water temperature in the bucket.
3. Cover the glass tube with a sunscreen net to reduce sun exposure.
4. Install a water temperature gauge to easily check the water temperature and water level in the bucket. Try to keep the water temperature in the bucket below 80 degrees, preferably between 60 and 70 degrees, so that there is no scale.