Hello! Sorry for the inconvenience.
The electric heater junction box has three terminals arranged side by side, corresponding to the live wire L, the ground wire PE and the neutral wire N from left to right. Use special three-core wires to connect them accordingly (red --- live wire, yellow --- ground wire, blue --- neutral wire).
(For example, the two-core wire connected to the customer's home appliance heater should not have a ground wire. In this case, leakage protection can be connected but it does not will play no role in leakage protection. The presence or absence of a ground wire is related to the user's home. Generally, there are no ground wires in rural areas. old buildings.) Two ground wires are connected from the electric heater and water tank liner to the same terminal, then unified to the center terminal of the boxe junction.
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How to use the solar leak protection cap
1. Leakage protector of solar water heater is damaged; 2. The leakage protector of the solar water heater trips incorrectly; heating tube and temperature sensitive switch The probe conducts heat directly through the metal. If the heat conduction is too fast ou too high, it will cause incorrect action and cause tripping. 4. The leakage protection cap of the solar water heater has a temperature sensor. poor contact with bottom plug, causing false start due to overheating; 5. The leakage protection cap of the solar water heater. One of the temperature sensitive switches is defective. Suggested Solutions: 1. You can call the manufacturer to contact professional maintenance workers to repair or replace it. 2. Restart after reset. 3. If the heating tube and temperature-sensitive switching probe conduct heat directly through the metal, malfunction may occur due to excessive heat conduction and result in sudden tripping. Then pull the temperature sensitive switch probe about 40mm from the bottom of the blind tube to cut off the power, setsz the multimeter to the resistance range of the maximum range of 7 M ohms, then connect the two meters to any power line. terminate outside the heating tube; if it's cold. If the state insulation resistance is less than 7M ohms, replace the heating tube. If the insulation performance of the heating tube decreases, it will only appear after a period of use. Since the insulation resistance value is unstable, when the leakage current exceeds a certain value, the leakage protection cap will act immediately to cause sudden tripping. Then replace the heating tube. If a leak occurs due to insufficient creepage distance between live components and the chassis, check for wire-to-metal contact in each connection line. 4. The problem can be solved by replacing the plug. 5. Replace the temperature sensitive switch or capon protection against leaks.
The solar water heater leakage protection plug is an electrical outlet specially used to prevent leakage. Electric water heaters also use plugs with the same function. This plug must be installed when installing a solar water heater. of course, other installations The plug can also heat up normally. For safety reasons, I recommend using a leak protection plug. The three wires are: the top one is connected to the ground wire, and the bottom one is connected to the ground wire. The left side (L) is the live wire and the right side (N) is the neutral wire . Please check if your outlet is configured like this! Thank you!