47 Maintain Tips to Keep Solar Water Heater’s Longer Service Life

Solar water heater is now a very popular way to obtain hot water. How to extend solar water heater service life? Here are the tips:

1. When taking a bath, if the water in the solar water heater is used up, can feed cold water for a few minutes. Using the principle of cold water sinking and hot water floating, push out the water in the vacuum tube and then take a bath.

2. After taking a bath in the evening, if half of the water tank of the water heater still has hot water at nearly 70 ℃, in order to prevent excessive heat loss (the less the water, the faster the heat loss), the amount of water should also be determined according to the weather forecast; The next day is sunny, it is full of water; On rainy days, 2 / 3 of the water is used.

3. There are obstructions above and around the water heater, or there is much smoke and dust in the local air, and there is much dust on the surface of the collector. Treatment method: remove the shelter or re select the installation position. In areas with serious pollution, users should wipe the collector tube regularly.

4. The water supply valve is not tightly closed, and the tap water (cold water) pushes out the hot water in the water tank, resulting in the decrease of water temperature. Treatment method: repair or replace the water supply valve.

5. Insufficient tap water pressure. Treatment method: add a fully automatic suction pump.

6. In order to ensure the normal use of the water heater, the safety valve shall be maintained at least once a month to ensure the normal pressure relief of the safety valve.

7. The upper and lower water pipes are leaking. Treatment method: replace the pipeline valve or connector.

8. Conduct system blowdown regularly to prevent pipeline blockage; The water tank shall be cleaned to ensure that the water quality is clean. During blowdown, as long as the normal water inflow is ensured, open the blowdown valve and the clean water flows out of the blowdown valve.

9. For the flat plate solar water heater, regularly remove the dust and dirt on the transparent cover plate of the solar collector, and keep the cover plate clean to ensure high light transmittance. The cleaning shall be carried out in the morning or evening when the sunshine is not strong and the temperature is low, so as to prevent the transparent cover plate from being broken by cold water. Pay attention to check whether the transparent cover plate is damaged. If it is damaged, it shall be replaced in time.

10. For the vacuum tube solar water heater, the vacuum degree of the vacuum tube or whether the inner glass tube is broken shall be often checked. When the barium titanium getter of the real empty tube turns black, it indicates that the vacuum degree has decreased and the collector tube needs to be replaced.

11. Patrol and check all pipelines, valves, ball float valves, solenoid valves and connecting rubber pipes for leakage, and repair them in time if any.

12. Prevent dull sun exposure. When the circulation system stops circulating, it is called airtight drying. Airtight drying will increase the internal temperature of the collector, damage the coating, deform the box insulation layer, break the glass, etc. The cause of stuffy drying may be the blockage of circulating pipeline; In the natural circulation system, it may also be caused by insufficient cold water supply and the water level in the hot water tank is lower than the upper circulation pipe; In the forced circulation system, it may be caused by the stop of the circulating pump.

13. The water temperature of vacuum tube water heater can reach 70 ℃ ~ 90 ℃, and the maximum temperature of flat plate water heater can reach 60 ℃ ~ 70 ℃. During bathing, cold and hot water shall be adjusted, first cold water and then hot water to avoid scalding.

14. The inner tank shall be cleaned regularly. During long-term use, the effluent quality and service life will be affected if it is not cleaned regularly after the trace impurities and minerals contained in the water have been precipitated for a long time.

15. Conduct regular inspection at least once a year to carefully detect and eliminate safety performance and other potential hazards.

16. When not in use for a long time, turn off the power supply and drain the water stored in the tank.

17. When filling water, the water outlet must be opened and the air in the inner tank can be completely discharged before checking whether the water is full.

18. For the all-weather hot water system installed with auxiliary heat source, regularly check whether the auxiliary heat source device and heat exchanger work normally. The auxiliary heat source is heated by electric heating tube. Before use, ensure that the leakage protection device works reliably, otherwise it cannot be used.

19. When the temperature is lower than 0 ℃ in winter, the water in the collector shall be drained for the flat plate system; If the forced circulation system with the function of anti freezing control system is installed, it is only necessary to start the anti freezing system without emptying the water in the system.

20. For your health, you’d better not eat the water in the solar water heater, because the water in the collector can’t be completely discharged, which is easy to breed bacteria.

21. When taking a bath, if the water in the solar water heater has been used up and the person has not been washed clean, you can use cold water for a few minutes. Using the principle of cold water sinking and hot water floating, push out the hot water in the vacuum tube and then take a bath. If there is still a little hot water in the solar water heater after taking a bath, cold water can be used for a few minutes, and one more person can wash the hot water.

22. How to prolong the service life: in order to prolong the service life of solar water heater, users should pay attention to: after the water heater is installed and fixed, non professionals should not easily move or unload it, so as not to damage key components; Sundries shall not be placed around the water heater to eliminate the hidden danger of impacting the vacuum pipe; Regularly check the exhaust hole to ensure that it is unblocked to avoid expanding or shrinking the water tank; When cleaning the vacuum tube regularly, be careful not to damage the tip at the lower end of the vacuum tube; For solar water heaters with auxiliary electric heating devices, special attention shall be paid to water filling to prevent dry burning without water.

23. During piping construction, there may be dust or oil smell in the water transmission pipe. When it is used for the first time, loosen the faucet and remove sundries first.

24. The clean outlet at the lower end of the collector shall be regularly discharged according to the water quality. The drainage time can be selected when the collector is low in the morning.

25. There is a filter screen device at the outlet end of the faucet, and the scale and sundries in the water pipe will gather in this screen. It should be removed and cleaned regularly to increase the water flow and flow out smoothly.

26. The solar water heater needs to be cleaned, inspected and disinfected every half to two years. Users can ask a professional cleaning company to clean it. At ordinary times, they can also do some disinfection work by themselves. For example, users can buy some disinfectants containing chlorine, pour them into the water inlet, soak them for a period of time, and then release them, which can have a certain disinfection and sterilization effect.

27. Solar water heaters are installed outdoors, so the water heater and roof should be installed firmly to resist the invasion of strong wind.

28. In winter in the north, the water heater pipeline must be insulated and antifreezed to prevent freezing crack of the water pipe.

29. It is strictly prohibited to operate the electrical part with wet hands. Before bathing, cut off the power supply of saide thermal auxiliary system and antifreeze belt. It is strictly prohibited to use the leakage protection plug as a switch. It is strictly prohibited to start the electrical part frequently.

30. The water heater shall be designed and installed by the manufacturer or professional installation team.

31. When the water level of the water heater is lower than 2 water levels, the auxiliary heating system cannot be used to prevent dry burning of the auxiliary heating system. Most water tanks are designed as non pressure bearing structure. The overflow port and exhaust port on the top of the water tank must not be blocked, otherwise the water tank will be broken due to excessive water pressure of the water tank. If the pressure of tap water is too high, turn down the valve when filling water, otherwise the water tank will burst because it is too late to discharge water.

32. The air drying temperature of the vacuum tube can reach more than 200 ℃. Water cannot be added for the first time or when it is impossible to determine whether there is water in the tube; Do not add water in the hot sun, otherwise the glass tube will be broken. It is best to add water in the morning or at night or after blocking the collector for an hour.

33. Cut off the power supply before emptying.

34. When there is no hot water in the water tank during bathing, you can first add cold water to the solar water tank for 10 minutes. Using the principle of cold water sinking and hot water floating, you can push out the hot water in the vacuum tube and continue bathing. In the same way, if there is still a little hot water in the solar water heater after bathing, you can add water for a few minutes, and the hot water can wash one more person.

35. For users who rely on the overflow chute to sense that the water is full, open the valve to drain some water after the water is full in winter, which can prevent freezing and blocking the exhaust port.

36. When the antifreeze belt cannot be used due to power failure, the water valve can be opened slightly to drip water, which can have a certain antifreeze effect.

37. The water filling time of the empty tank of the water heater shall be four hours before sunrise or after sunset (six hours in summer). It is strictly prohibited to fill water in the sun or during the day.

38. When bathing, first open the cold water valve to adjust the cold water flow, and then open the hot water valve to adjust until the required bathing temperature is obtained. Pay attention not to face people when adjusting the water temperature to avoid scalding.

39. When the temperature is lower than 0 ℃ for a long time, keep the antifreeze belt powered on. When the temperature is higher than 0 ℃, cut off the power supply to prevent fire caused by out of control heat balance. Before using the antifreeze belt, check whether the indoor socket is powered.

40. The choice of bathing time shall avoid the peak water use as far as possible, and other toilets and kitchens shall not use hot and cold water to avoid sudden cold and heat during bathing.

41. In case of any problem, contact the special maintenance station or the company’s after-sales service in time. Do not change or call a private mobile phone without permission.

42. The control valves at all indoor cold and hot water mixing places must be hit with cold water or hot water when not in use to avoid water leakage.

43. The vacuum pipe of the water heater is easy to accumulate dust, which affects the use. You can wipe it on the roof in winter or when there is a lot of dust (under the condition of ensuring absolute safety).

44. If hot water is found in the cold water pipeline, it shall be reported for repair in time to prevent burning the cold water pipeline.

45. When discharging water to the bathtub (bathtub), do not use the shower head to prevent scalding the shower head; When you are away from home for a long time, you must turn off the tap water and the main indoor power supply; (ensure that the water heater can be filled with water when the water and electricity are turned off).

46. When the indoor temperature is lower than 0 ℃, vent the water in the pipeline and keep the drain valve open to prevent freezing damage to the pipeline and indoor copper fittings.

47. It is forbidden to use the solar water heater in Thunderstorm and windy weather, and fill the water tank with water to increase its self weight. And cut off the power supply of the electrical part.

Post time: Nov-10-2021