The flat-panel solar water heater is a device that absorbs solar radiation energy and transfers heat to the working medium. It is a special heat exchanger. The working medium in the collector exchanges heat with the distant sun.
So, what maintenance should we pay attention to for flat-panel solar power?
1. There are obstructions above and around the water heater or there is a lot of smoke and dust in the local air, and the surface of the collector is dusty. Treatment method: remove the occlusion or re-select the installation location. In areas with serious pollution, users should wipe the solar energy regularly.
2. The water supply valve is not closed tightly, and the tap water (cold water) pushes out the hot water in the water tank, causing the water temperature to drop. Treatment method: Repair or replace the water supply valve.
3. In order to ensure the normal use of the water heater, the safety valve needs to be maintained at least once a month to ensure the normal pressure relief of the safety valve. 4. The upper and lower water pipes are leaking. Treatment method: replace the pipeline valve or joint.
5. Regularly carry out system sewage to prevent pipeline blockage; and clean the water tank to ensure clean water quality. When the sewage is discharged, as long as the water inlet is normal, the sewage valve is opened, and the clean water flows out of the sewage valve.
6. For the flat-panel solar water heater, regularly remove the dust and dirt on the transparent cover of the solar collector, and keep the cover clean to ensure high light transmittance. The cleaning work should be carried out in the early morning or evening when the sunshine is not strong and the temperature is
low to prevent the transparent cover from being shattered by cold water. Pay attention to check whether the transparent cover is damaged, and replace it in time if it is damaged. 7. Inspect the pipes, valves, floating ball valves, solenoid valves, connecting hoses, etc. for leakage, if any, repair them in time.
8, to prevent stuffy sun. When the circulation system stops circulating, it is called stuffy sun. Stuffy sun will cause the internal temperature of the collector to rise, damage the coating, deform the insulation layer of the box, and break the glass. The reason for the stuffy sun may be the blockage of the circulation pipeline; in the natural circulation system, it may also be due to insufficient water supply of cold water, and the water level in the hot water tank is lower than the upper circulation pipe. In the forced circulation system, it may be because the circulation pump stops working. To.
9. Regularly clean the inner tank. When used for a long time, after the trace impurities and minerals contained in the water have been precipitated for a long time, if it is not cleaned regularly, it will affect the water quality and service life.
10. Regular inspection not less than once a year to carefully detect and eliminate safety performance and other potential hidden dangers.
11. When not in use for a long time, turn off the power supply and empty the water storage in the inner tank.
12. The water outlet must be opened when filling the water, and the air in the inner tank can be completely discharged before checking whether the water is full.
13. For all-weather hot water systems with auxiliary heat sources installed, the auxiliary heat source devices and heat exchangers should be checked regularly to see if they are working properly. As the auxiliary heat source is heated by an electric heating tube, make sure that the leakage protection device works reliably before use, otherwise it cannot be used.
14. When the temperature is lower than 0°C in winter, the water in the collector should be drained for the flat-plate system, and the forced circulation system with the function of the antifreeze control system is installed. water.
15. For your health, it is best not to eat the water in the solar water heater, because the water in the collector cannot be completely released, which is easy to breed bacteria. 16. How to prolong the service life: In order to prolong the service life of the solar water heater, users should pay attention to the fact that after the water heater is installed and fixed, non-professionals should not easily move or disassemble it to avoid damage to key components, and no debris should be placed around the water heater. In order to eliminate the hidden danger of hitting the vacuum tube, check the exhaust hole regularly to ensure that it is unblocked, so as not to swell or deflate the water tank. When cleaning the vacuum tube regularly, be careful not to damage the tip of the lower end of the vacuum tube. The solar water heater with auxiliary electric heating device should be specially Pay attention to the water to prevent dry burning without water. 17. Baoding flat-panel solar water heaters need to be cleaned, inspected, and disinfected every year and a half to two years. Users can ask a professional cleaning company to clean them. They can also do some disinfection work by themselves. For example, users can buy some chlorine-containing water heaters. Pour the disinfectant into the water inlet, let it soak for a period of time, and then release it, which can have a certain disinfection and sterilization effect.
18. It is strictly forbidden to operate the electrical parts with wet hands, cut off the power supply before bathing, it is strictly forbidden to use the leakage protection plug as a switch, and the electrical parts are strictly forbidden to be started frequently.
19. The control valves at all indoor hot and cold water mixing places must be hit with cold water or hot water when not in use to avoid the phenomenon of water stringing. 20. When pouring water into the bathtub, do not use the shower head to prevent the shower head from being scalded. When you are not at home for a long time, you must turn off the tap water and the main indoor power supply.