1. The T test button is a detection switch to check whether the leakage switch is working normally. When the device is powered on and you press the T test button, the leakage switch will trip, which means the switch is working. Normally ; If the switch does not trip, there is a leak. The switch is defective and needs to be repaired or replaced.
2. The reset button is used to reset after the faulty switch is triggered (turn on the power) when you press the experimental T button or there is a leak in the line.
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Precautions for using solar water heaters
1 The water stored in the solar water heater must be evacuated. regularly to avoid long-term buildup. The discharge cycle is determined by local water quality conditions. The rejectioncan be carried out in the morning because the sensor temperature is lower there.
2. If the weather is good for several consecutive days without using hot water, the water temperature will be relatively high. When using it, you should turn on the cold water first, then the hot water to avoid scalding.
3. Solar water heater pipes are often frozen in winter. If there are no cracks in the frozen pipes, there is no cause for concern. They will be able to function normally when the temperature increases.
4. If you need to thaw a frozen pipe, do not hit it, grill it over a fire, or use boiling water, otherwise the pipe may burst. You can use a towel to wrap the pipe, then slowly pour warm water or blow with a hair dryer to treat the pipe.
5. In order to avoid the formation of scale inside the vacuum tube of the solar water heater, it mustt be cleaned regularly, every 2 to 3 years.
6. For solar water heaters equipped with special instruments, pay attention to electricity and lightning protection, and be sure to unplug the plug of the electric heater when using it in a thunderstorm.
7. When using a solar water heater for the first time, you can turn on the faucet to drain the water so that any debris that may be stuck in the water line can be flushed out before use.
8. The surface of the solar water heater installed on the roof is easily contaminated by dust. Although it can be cleaned automatically on rainy days, it still needs to be cleaned regularly. the efficiency of heat collection.
9. The outlet end of the solar water heater faucet is usually equipped with a filter screen, which needs to be cleaned regularly to ensure smooth water flow.
10. Solar water heaters should be disinfected, inspected and cleaned every 2 to 3 years on average.
Analysis and solutions of solar water heater tripping failures:
1. The solar water heater leak protector is damaged and can be repaired or replaced;
< p>2. The leakage protection device of the solar water heater has been triggered by mistake. Just reset it and restart it.3. Solar heating tube and temperature sensitive switch probe conduct heat; directly through the metal. If the heat conduction is too fast or too high, incorrect action may cause tripping.
4. The leakage protection cap of the solar water heater is in poor contact with the bottom; socket, causing a false start due to overheating. This can be fixed by replacing socket
5. The heater leak protection sheet-solar water and temperature sensitive switch;If any of them fails, replace the temperature sensitive switch or leakage protection cap.
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Solar water heaters convert solar energy into thermal energy and heat water from low temperature to high temperature to meet the people's needs in life and hot water production. Solar water heaters are divided into vacuum tube solar water heaters and flat panel solar water heaters based on their structural shapes. Evacuated tube solar water heaters are the main ones, accounting for 95% of the domestic market share.
Home evacuated tube solar water heaters are composed of heat collecting tubes, water storage tanks, brackets and other related accessories. The conversion of solar energy into thermal energy is mainly based onr heat collecting tubes. The heat collecting tube uses the principle of hot water floating up and cold water flowing down to cause microcirculation of water to achieve the required hot water.
When the vacuum tube water heater absorbs heat, solar radiation passes through the outer tube of the vacuum tube, is absorbed by the heat collecting coating, and then transferred to the water in the tube along the wall of the inner tube. . After the water in the tube absorbs heat, its temperature increases and its density decreases and increases, forming an upward force and forming a thermosyphon system. As the hot water continues to rise and be stored in the upper part of the water storage tank, at the same time the lower temperature water is continuously replenished on the other side of the pipe and so Afterwards, the entire tank is filled. the water rises to a certain temperature.
Flat plate water heaters are generally split type water heaters. The fluid circulates naturally in the heat collecting plate due to the thermal siphon, and the heat radiated by solar radiation on the heat collecting plate is transferred to the water tank in a timely manner. The water tank uses a heat exchange (jacket or coil) transfers heat to cold water. Fluid can also flow through the pump to achieve heat transfer.