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Problems and improvement methods of defrost of evaporator

Although the evaporator is very easy to use, in the process of use, the evaporator defrost electric heating tube burns out, and the water collecting tray heating chamber burns out. So I will introduce the problems of the evaporator equipment and analyze the problems. The root cause and propose corresponding improvement measures.
1.Evaporator often fails to defrost
The electric heating tube of the evaporator is very easy to burn out, and because the electric heating tube of the evaporator is composed of two sets connected in series with the heating tube, one of them is burned out, the line interruption cannot work normally, so the frost on the evaporator body cannot be melted.
2.The drip tray freezes
There is no electric heating tube inside the water collecting tray.Although the same electric heating wire as in the downpipe is provided, the power is very small, the quality is poor, and frequent failures occur.Because the low temperature and temperature reach below -18 ℃, the evaporator defrosts Later, the water entering the water collection pan will freeze again before it is released, and it cannot flow away through the downspout.
3.Ice blockage of downpipe
The downpipe electric heating wire is faulty. Because the downpipe electric heating wire is always in working condition, and its own poor quality, the downpipe electric heating wire has a high failure rate. Because the downspout was originally long, once its electric heating wire failed, in a low temperature environment, the water entering the downspout did not wait to flow away before it began to freeze again, and the defrosting could not be achieved normally.
improvement measures:
1. The main reason that the evaporator cannot defrost is because of the problem of the quality of electric heating, and the serial method is used. Therefore, we should use a heating tube with a rated voltage of 220v, and use a parallel method.
2. Re-customize the water collecting tray to ensure that the frosted water from the evaporator will not freeze again after reaching the water collecting tray.
3. Improve the shortening of the downspout, which is to make the downspout as short as possible. Add a water collection bucket under the water collection tray, and replace the new water collection bucket before the water in the water collection bucket is full.

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