What should I do if the water pressure of a solar water heater is low? What are the maintenance tips for solar water heaters?

Solar water heaters generate heat through sunlight. If there is continuous high temperature weather, the water temperature will be too high. What should we do? Sometimes we may encounter the problem of low water pressure of solar water heaters due to high floors, which affects people's normal use. How can this be solved?

Contents of this article

1. What to do if the water pressure of the solar water heater is low

2. What are the maintenance tips for solar water heaters?

3. What should I pay attention to when using solar water heaters?

What to do if the water pressure of solar water heater is low

1. Install a booster pump outside the water tank: In order to increase the hot water pressure, a hot water booster pump can be added to the solar hot water pipe on the roof, which can solve the problem of hot water pressure.

2. Replace the thermostatic mixing valve: The principle of the thermostatic mixing valve is to use the characteristics of the temperature sensing element of the mixing outlet to push the valve core in the valve body to move, blocking or opening the cold and hot water inlets. Block the cold water and open the hot water at the same time. When the temperature adjustment knob is set to a certain temperature, no matter how the cold and hot water inlet temperatures and pressures change, the ratio of cold and hot water entering the outlet will also change, so that the outlet water temperature remains constant.

3. Lower the tap water pressure: Turn down the main valve of the indoor tap water to a level that does not affect the daily use of cold water. This will reduce the cold water pressure and balance the hot and cold water pressures. The hot water can also be adjusted through the mixing valve.

What are the maintenance tips for solar water heaters?

1. Regularly drain the system to avoid blockage of the pipeline due to scale or other impurities during use, which will affect the normal operation of the entire system. In addition, bacteria are easy to breed in the connecting pipes, so the air should be vented regularly during use.

2. Solar water heaters generate heat through sunlight. If there is continuous high temperature weather, the water temperature will be too high. Therefore, when using it, turn on the cold water first, and then slowly adjust the hot water to avoid the pipes being stimulated by high temperature and affecting the service life.

3. Check the usage of all pipes, valves and other accessories at regular intervals. If leakage is found, repair or replace new accessories in time to avoid affecting the use. However, because the system is relatively complicated, it is recommended to seek help from professionals.

4. Observe the container cover regularly. Once dust or other stains are found on it, clean it in time to ensure the light transmittance of the cover. At the same time, pay attention to the filter device to avoid scale accumulation so that the system can run more efficiently.

What should I pay attention to when using solar water heaters?

1. When taking a shower, if the water in the solar water heater has been used up and the person has not yet rinsed, you can use cold water. Using the principle that cold water sinks and hot water floats, the hot water in the vacuum tube can be pushed out and you can continue taking a shower. Using the above principle, if there is still some hot water in the solar water heater after taking a shower, you can use cold water for a while, and the hot water obtained can be used to wash one more person.

2. Decide the amount of water to be added according to the weather forecast, and you can get a relatively satisfactory water temperature. If it is sunny tomorrow, fill the water tank with water; if it is cloudy or overcast, fill half of the tank with water; if it rains, keep the original water and do not add cold water. After taking a shower at night, if there is still half of the hot water of nearly 70 degrees in the water tank of the water heater, in order to prevent excessive heat loss (the less water, the faster the heat loss), you should also decide the amount of water to be added according to the water temperature weather forecast. If it is sunny tomorrow, fill the water tank with water; if it is cloudy or rainy, fill 2/3 of the water.

3. Adjustment of hot and cold water: Steps for adjusting the water temperature of the water heater: first open the cold water valve, adjust the cold water flow appropriately, then open the hot water valve and adjust until the required bathing temperature is obtained. In addition, the amount of cold water can be determined based on experience according to weather conditions, and be careful not to point the nozzle towards the human body to avoid burns.

4. In order to extend the service life of the solar water heater, users should pay attention to the following during use: After the water heater is installed and fixed, non-professionals should not move or disassemble it easily to avoid damaging key components; no debris should be placed around the water heater to eliminate the hidden danger of hitting the vacuum tube; check the exhaust hole regularly to ensure that it is unobstructed to avoid swelling or deflation of the water tank; when cleaning the vacuum tube regularly, be careful not to damage the top of the lower end of the vacuum tube; solar water heaters with auxiliary electric heating devices should pay special attention to water supply to prevent dry burning without water.

5. When the temperature is not too low (5-7℃), after using water at night, if there is still hot water in the water tank, it is advisable to fill the solar water heater with water immediately to reduce the water temperature in the water tank and the heat loss that night, and make full use of the thermal energy. If the temperature is low, it is advisable to fill the water tomorrow morning to prevent the pipes at the water outlet of the water heater from freezing.