How good is the air conditioning dehumidification

How good is the air conditioning dehumidification 1. Active setting of air conditioning dehumidification temperature Nowadays, the temperature of some air conditioners is set actively by the manufacturer during dehumidification. Under the dehumidification method of this type of air conditioner, the control circuit will first check the room temperature, and then set the operating temperature policy value. The setting value of the factory plan is usually the policy value of the operation arrival It is 2 degrees lower than the room temperature. If the setting is too high, the dehumidification effect is not significant. In order to prevent overheating and lowering the room temperature during dehumidification, this set value is usually judged. At this time, we do not need to set the temperature, just open the air conditioning dehumidification function. 2. Manual setting of air conditioning dehumidification temperature   As for the air conditioner that needs to set its own dehumidification temperature, there is no special question in this category. According to the experience of wide netizens, it is most suitable to set the temperature at 4 degrees lower than room temperature. For example, if your cooling temperature is set at 27 degrees, then the dehumidification temperature is set at 23 degrees.   Using air conditioning to dehumidify attention We should be careful when using the dehumidification method of the air conditioner. Assuming that the outdoor temperature is high and the air is very monotonous, do not open the dehumidification method for a long time to prevent damage to the compressor. Usually, the outdoor temperature is higher than 40 degrees. Normally the refrigeration method works. Only in the evening when the temperature is relatively low and the humidity is high, the dehumidification method can be adjusted properly to reach the effect of dispatching the temperature and humidity of the room. How many degrees of air conditioner dehumidification temperature is open? Normally, most air conditioner dehumidification methods are active methods. We do not need to set it by ourselves; assuming that we need to set it by ourselves, it is appropriate to set it at 4 degrees lower than room temperature. However, assuming that long-term use of air conditioning and dehumidification methods will harm the air conditioning compressor, it is usually 1-2 hours at a time.

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What are the causes of air conditioning trip

06/20/2020

What are the causes of air conditioning trip

What are the causes of air conditioning trip 1. The contradiction between the rated current of the air conditioner and the current carrying capacity of the wire.   Here are two formulas involved:   ①The rated current of air conditioner I=P÷U ÷power factor, the power remains unchanged, the smaller the voltage, the greater the current required.   ② The current carrying capacity of the wire I=U÷R, the voltage is proportional to the current.    So when the power supply voltage is normal, we must consider the line voltage drop. The longer the line, the greater the resistance, the greater the voltage drop, and the smaller the output current at the end. However, because the power of the load remains unchanged, the voltage becomes smaller, and the current that needs to be output will be larger. At this time, the wire is forced to overload, and the time will cause heating, and eventually cause the tripping of the open circuit.    Some friends said that the heat of the wire will not cause the tripping of the circuit breaker. In fact, the manufacturer of the air switch has made it clear in the relevant manuals that the heat of the wire will cause the air switch to trip. Because the wire heats up, the crimp terminal will also heat up, and the resistance will become larger and larger. The larger the resistance, the greater the current consumption, and the hotter it will be, a vicious cycle.    2. Leakage   During the daily maintenance work, we will encounter the situation that the air circuit trips due to the leakage of electricity. At least I have not experienced it once or twice. Regardless of the leakage of the neutral line or the leakage of the live line, a long time will cause the circuit breaker to trip.   Why does the electric leakage cause the MCB to trip? There are two situations.    ① Good grounding. At the beginning, the leakage current was not large, and as time went by, the leakage current became larger and larger, and eventually evolved into a short circuit to ground, unable to close.   ②There is no ground wire. If the equipment is not connected to the protective ground, when the wire leaks to the equipment, it is equivalent to adding a large shunt resistance. Like this problem, if the air conditioner does not have a ground wire, when the wire leaks to the air conditioner, the air conditioner is a very large shunt resistor and will consume a lot of current. Eventually, the wire will heat up or trip open.   How to determine whether the trip caused by the above two aspects can be done with a clamp ammeter.    ① Measure the voltage at the input and output to see if there is a significant change in voltage drop.   ②Measure whether the output current exceeds the standard.    So my suggestion is: first measure the supply voltage to see if it is within the allowable fluctuation range. Then measure the current to see if it exceeds the rated ampacity of the wire. Finally, check the data one by one according to the measured data to find out the reason.

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