3 safety modes of water heater you need to know
(Baonghean.vn) - Water heaters always have potential electrical risks, especially with direct water heaters. Therefore, a good water heater is not only durable but most importantly, it must always ensure absolute safety for the user. Below are the basic safety features of water heaters that you need to know.
1. Flow switch
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Flow switch (also known as flow control) is used to sense changes in flow in the pipe, playing a role in protecting the electrical system of the water heater. When the water pressure is too low, the flow switch will immediately cut off the power to ensure safety, avoiding unfortunate electrical incidents.
Water heaters of reputable brands on the market are mostly equipped with flow switches, giving users peace of mind when using the product.
2. Isolate the current
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Water heaters, especially direct water heaters, are often equipped by the manufacturer with a highly sensitive ELCB/ELB (only different in name) anti-leakage circuit breaker to limit electrical accidents inside the machine. When detecting a leaking current running in an electrical circuit, the ELCB or ELB will automatically cut off the power to prevent unfortunate accidents from happening. When you want to use the water heater again, you must turn the switch back on.
How to test the ELCB/ELB anti-shock device through two Test & Reset buttons: After installation, turn on the ELCB/ELB function, then press the Test button, then press Reset and let the machine test operation.
If after 5 - 8 seconds, the water in the faucet has heated up, it means the anti-shock device is still working properly. If the machine is turned off while in operation, it means the ELCB warns that the power source being used is unsafe. You should check immediately and absolutely do not turn the machine back on to continue using.
In addition, to minimize the risk of electric leakage, the water heater shell can be grounded. Then, the electric current will flow into the ground, effectively reducing the risk of electric shock.
3. Temperature sensor
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Direct water heaters operate on the principle of heating water with a heating wire and then sending water directly to the shower for you to use. Therefore, the product is always equipped with a temperature sensor system to ensure the water flow has a stable temperature maintained at 45 - 55 degrees Celsius depending on the machine's capacity, does not heat up suddenly, and prevents burns.
The temperature sensor usually comes with a relay. When the water heats up to the allowed threshold, the relay will automatically turn off and when it cools down, it will automatically turn on, ensuring user safety.
How to use water heater safely
- Install according to manufacturer's standards and recommendations:is extremely important, deciding the safety of the user. Many tragic accidents occur due to improper installation or many people ignore this step.
- Do not turn on the water heater 24/24h:Not only does it waste electricity, it also causes overloading, affecting the durability of the water heater. You should only turn on the heater 15-20 minutes before use, and when you start using it, you should turn off the power to the heater.
- Periodically check and clean (vacuum, flush):inside the tank after a period of use to avoid electric leakage and rust caused by sediment. Periodic cleaning of the water heater depends on the water source used. If the water source is clean, the cleaning period is 12 months; 6 months for water sources with high sediment.
- Do not use the water heater if an electrical leak is detected.In this case, customers need to immediately contact the product warranty department or professional installation team to fix the problem to avoid affecting the user's health and life.
