Disadvantages of the installation of electric water heaters
For our families who use electric water heaters, buying an instant electric water heater should be a good choice. The instant electric water heater can achieve the effect of instant heat, and there is no need to wait for time. Praise, today we will lead you into the instant electric water heater to understand the shortcomings of the instant electric water heater and the precautions during installation.
Although instant electric water heaters have the characteristics of small footprint, fast water output, environmental protection and energy saving, but high power, it is difficult for ordinary household electric meters to accept. The power of the instant electric water heater is above 4 ~ 6kW, and the current is 18 ~ 27A, which exceeds the current of 15A accepted by most residences in China.
Compared with traditional water heaters, fast electric water heaters are more environmentally friendly and economical than gas water heaters. They are more convenient, energy-saving and more convenient than water storage electric water heaters. But instant electric water heaters also have shortcomings. What are their shortcomings?
The following are the shortcomings of instant electric water heater
First, the maximum power is high and the line request is high. In order to ensure that it can reach the effect of opening and heating when the weather is very cold, the instantaneous electric water heater will use the maximum power, usually at least 6KW or more, and when the weather is hot, use a smaller power, but the request for the power cord Correspondingly, it must be at least 4mm2. And such power and lines are mostly unacceptable with respect to the current of the circuit 15A of ordinary Chinese Duting old buildings.The newly built residences after 1999 have far met the application requirements.
Second, the device condition is high, request the user's home electric meter to be more than 20A, the air switch is 32A, the common request is to have an independent line, plus ordinary households' refrigerators, air conditioners and other high-power household appliances, At least 30A electric meter. However, these high-power appliances just happened to be used in anti-season applications with water heaters. This is also a bottleneck currently affecting the rapid improvement of thermal electric water heaters in China.
Third, the influence of the north-south climate or special requests for higher water temperatures. China has a wide area, and the temperature difference between the north and the south is very large. In the northern area, the temperature of the water pipe in the winter is low. If you want to reach a constant temperature bath, the flow rate of the outlet of the electric hot water heater is smaller than normal. Low, it is difficult to wash it in the shower. This requires the use of high-power models.
Key points for construction and installation of instant electric water heater:
1. Location of the device: ensure that the wall can receive twice the amount of hot water that is filled with water, and the fixture is strong; ensure that the water heater has room for maintenance.
2. Water pipe connection: a pressure relief valve is connected to the water heater inlet (blue blocking cap), and the hot water pipe should be connected from the water outlet (red blocking cap). Raw material tape should be used at the pipeline interface to avoid water leakage, and the safety valve cannot be screwed too tightly to prevent damage. If the water pressure of the inlet pipe is close to the relief value of the safety valve, a pressure relief valve should be installed on the inlet pipe away from the water heater.
3. Power supply: Make sure that the water heater is firmly grounded. The socket used must be firmly grounded.
4. Water filling: After all the pipes are connected, turn on the faucet or valve, then turn on the hot water to fill the water heater, and discharge the air until the hot water faucet flows out, indicating that the water is full. Turn off the hot water faucet and check all the joints for leaks. If there is water leakage, empty the water tank, repair the leakage connection, and refill the water heater.
Matters needing attention for installation of instant electric water heater:
1. The instant electric water heater must be debugged by professional qualified personnel, and a standard power cord must be connected.
2. The instant electric water heater must have a vertical device, first connect the water circuit, and then connect the circuit.
3. When tightening the water inlet connector, do not use too much pressure to avoid damaging the water heater.
4. When cleaning the machine, be sure to turn off the power; when the machine is turned on, it should be prevented from spraying directly to the body. Do not hang bath towels, clothes, etc. on the machine.
5. Regularly descale the shower and filter screen, and remove stolen goods.
6. In the icy area in winter, when not in use for a long time, the inside of the machine should be emptied to prevent freezing; if it is frozen, it cannot be powered on.
7. It is strictly forbidden to overload the watt-hour meters and wires; if the power cord is damaged, you must contact the designated maintenance point to replace it.
8. Please follow the instructions to clear common problems, or suspend the use and contact the local customer service department, do not dismantle and repair without authorization, so as not to expand the risk of attack.
9. The rated current of the power cord, household wire, watt-hour meter, switch, etc., the rated power should be greater than the rated current or rated power of the water heater.
Relevant information about the shortcomings of the instant electric water heater is introduced here for everyone, I hope this article is helpful to everyone. If you still do n’t understand something, you can leave a comment below, we will answer it as soon as possible.
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