Why does the air conditioner add more and smaller, it will affect the cooling effect

Because the refrigerant is added, it affects the heat dissipation, and the refrigeration capacity is not enough. That is to say, the air conditioning system is compressed through the refrigerant inside, and the heat is removed by releasing expansion to achieve the effect of refrigeration. If the internal refrigerant is too small, the internal pressure will be too low and the heat taken away by the process of compression and release of work will be reduced, and the air conditioner will not be able to achieve the expected refrigeration effect; If there is too much refrigerant inside the air conditioning system, the energy required for the air conditioning compressor to compress the refrigerant will be greater, which increases the operation of the engine, and at the same time leads to excessive internal pressure in the pipeline and compressor and the compressor will work rough (obvious metal knocking sound inside the compressor), which will also reduce the refrigeration effect of the air conditioner and the service life of the compressor.

Therefore, the air-conditioning system must be filled in accordance with the amount of refrigerant and the refrigerant composition on the air-conditioning maintenance manual (some compressors have strict requirements for the composition of the refrigerant, and can only be filled with R134A refrigerant, and adding other refrigerants will produce internal abnormal noise).

The most popular thing is that it is easy to produce ice jam if you add more, and the refrigeration effect will deteriorate if you add less, so you should add it according to the standard.

The pressure of the air conditioning system is generally around the same time, with more large pipes of ice and less small tubes of frosting.

The pressure of the refrigerator system is generally around the limit, and there is more ice in the return air pipe, and less frost is not enough to run the refrigerator.

As for the amount of fluoride, it will affect the refrigeration effect.

The best point of normal air conditioning refrigeration is to use [refrigeration, slow plus slow release] to find, the operating pressure value of the air conditioning system is 4-5 catties is just a reference number, but also according to the ambient temperature at that time and the rated current specified on the nameplate of the air conditioner to match. It also has to run for twenty to thirty minutes as standard. If the refrigerant is too small, the refrigeration capacity is not enough, and the more refrigerant there is, the greater the operating pressure, the greater the current [power consumption], and the compressor will increase the current input under strong pressure.

However, it still cannot reach the standard speed, which will cause a great decrease in cooling capacity, an increase in power consumption, and even the compressor will overheat and shut down protection or seriously burn the compressor.

It will definitely affect the refrigerator refrigerant, and the most obvious phenomenon is that the return pipe is icy or frosted, which means that the refrigerant that should evaporate in the internal pipe of the refrigerator runs to the outside pipe to evaporate, absorbing not the heat inside the refrigerator, but the outside environment. This obviously affects the effect. Not to mention adding more, it will also cause excessive exhaust pressure of the press, poor condensation, high power consumption and other consequences.

There are several possibilities that are still not refrigerated after adding Freon:

1. Compressor failure.

The compressor malfunctions and stops running, which can also cause the refrigerator to not refrigerate.

1. Check whether the refrigerator is powered on.

Poor energizing will cause the return pipe pressure of the compression tube to be low, which will cause the compressor to not work and cause the refrigerator to not refrigerate.

Solution: Open the door of the refrigerator, the inner light can be on, indicating that the refrigerator has electricity; If the light is not on, check the total power supply first, then the refrigerator fuse, and finally check the contacts of the thermostat.

2. Check whether the compressor burns out.

Solution: Check whether the motor coil is burned out, and then check the starter, if the overheat protector is working, then let the compressor temperature drop after a while, and the compressor can be started.

Second, the problem of the thermostat.

1. Improper adjustment of the thermostat gear.

Solution: In summer, because the outdoor temperature is high, and the refrigerator will be opened frequently, so that the outside temperature can easily affect the temperature in the refrigerator. Therefore, we need to adjust the thermostat to a higher level, and try to minimize the frequency and frequency of opening the refrigerator.

2. The thermostat contacts are sintered.

Solution: After this happens, it means that the thermostat has failed, and it is not the gear of the adjustment that you see, so you only need to find a professional master to repair it.

Refrigerator common troubleshooting:

1. The refrigerator compressor does not start.

The refrigerator is not connected to the power supply or the compressor burns out, and the compressor cannot be started properly.

Solution: Open the refrigerator compartment to see if the internal light is on, if not, check whether the power supply is charged, check the refrigerator fuse, and check whether there is a problem with the contacts of the thermostat.

Check whether the compressor is burned out, first check whether the motor coil is burned out, and finally check the condition of the starter, if the overheating protector is working, wait for the compressor temperature to drop before starting.

2. The refrigerator does not stop.

The main reason for the failure of the refrigerator is that the mechanical thermostat leaks fluorine, or the temperature sensor cannot feel the temperature, and the control circuit board of the computer refrigerator fails.

3. Frost on the wall of the refrigerator.

In a high-temperature environment, the wall of the refrigerator of the mechanical temperature control refrigerator will be frosted, and the frost layer is thicker, resulting in the refrigerator not stopping, the main reason for this situation is that the temperature adjustment of the thermostat is too low, the storage position of the food in the box is wrong, the refrigerator opens the door too many times, and the refrigerator door seal is not well insulated.

Frost will form in the return pipe, which may cause a short circuit in the electrical appliance or increase the load on the press, affecting the life of the press.

will cause the compressor discharge pressure to be excessive. Increased energy consumption.

If too much refrigerant is added, it will cause the compressor to be overloaded, which will damage the compressor, the refrigeration is not good, the power consumption is also large, the evaporator frost is uneven, and the return pipe is frosted. Under normal circumstances, the return pipe should not be frosted, and the evaporator should be frosted evenly and completely. The specific impact of refrigerant plus more:

When operating at high humidity, the return air duct is prone to abnormal condensation. There may even be condensation on the casing of the reciprocating compressor, condensation on the gas and liquid separator of the rotary compressor, etc.

The compressor is overloaded, and in the event of an overload, the compressor will stop running after a while.

Increased power consumption. Compressors may end their life prematurely.

The pressure of the air conditioner is generally about 5MPa.

Refrigerant, the medium substance used to complete the energy conversion in various heat engines. These substances typically increase their power by a reversible phase transition, such as a gas-liquid phase change. Such as steam in a steam engine, refrigerant in a refrigerator, and so on.

When the general steam engine is working, the heat energy of the steam is released and converted into mechanical energy to generate the driving force; The refrigerant of the refrigerator is used to transfer heat from low temperatures to high temperatures.

Selection Principle:

It has no destructive effect on the human ecological environment. It does not destroy the ozone layer of the atmosphere and does not produce the greenhouse effect.

The critical temperature is high. It can be liquefied at room temperature or normal low temperature. It is desirable that the critical temperature is much higher than the ambient temperature in order to reduce the loss of refrigerant throttling and improve the circular economy.

Within the operating temperature range, there is an appropriate saturated vapor pressure, and the minimum evaporation pressure must not be lower than the atmospheric pressure, so as to avoid external air infiltration into the system; The condensing pressure should not be too high, otherwise it will cause the compressor to increase its power consumption, and require the system to have a high pressure-bearing capacity, which will increase the equipment cost.

When the steam engine is working, the heat energy of the steam is released and converted into mechanical energy to generate the prime mover, while the refrigerant of the refrigerator is used to transmit the heat from the low temperature to the high temperature.

When the air conditioner lacks fluorine, it affects the refrigeration effect, and the fluoride should be replenished in time, (R22). Use the liquid hose to connect the refrigerant cylinder valve at one end, and connect the liquid felling (with pressure gauge) at the other end, open the surface felling, and use the liquid filling hose at the other end to connect the thick pipe valve on the outdoor unit of the air conditioner with the liquid filling hose Liquid nozzle (with thimble valve core, also called self-sealing head, special adapter is tightened and automatically top unsealed valve, pay attention to the corresponding male and British transformer joints), at this time there is refrigerant gas in the pipe, loosen the cylinder valve joint to release some gas (exhaust air) and then tighten it. The air conditioner is set to refrigeration mode and starts running.

Invert the fluorine refrigerant cylinder, open the bottle valve, let the refrigerant be sucked into the air conditioning system from the low-pressure valve, control the liquid addition table, and do not add the liquid too quickly. After adding liquid, let the air conditioner run for a period of time, observe the temperature of its connecting pipe, the temperature of the thick pipe should be lower than that of the thin pipe, and a large amount of condensation is suitable for adding liquid. Of course, you can also check the current and other indicators.

Many people may find that when they turn on the air conditioner, they don't know why the air conditioner can't cool down. What is the reason why the air conditioner still can't cool down after using refrigerant? I think when a lot of people see this problem, they first feel that there is a lack of fluoride.

We need to add fluoride to the air conditioner. In fact, this is just one reason for the lack of refrigeration. Sometimes the addition of fluorine does not necessarily result in the air conditioner being able to cool properly.

At this point, we should take into account that the lack of cooling of the air conditioner is not due to the lack of fluoride, but may be due to other reasons. Let's take a look at why the air conditioner is refrigerant but still can't be cooled.

First of all, it could be because the fluorine we added does not match the air conditioner, or it can be because the amount of fluorine added is incorrect, such as the amount of fluorine is more or less. So, when the aircon is not cooling by adding fluoride, we need to eliminate the fact that the aircon is not cooling due to the improper addition of fluorine. Generally speaking, if our air conditioner is in.

If it hasn't been seen in three or five years, or has not been overly maintained, there is no need to add fluoride. Some air conditioners don't even need to add fluorine for more than a decade because the fluorine is sealed in the compressor and in general, the leakage is very slow.

Also, this problem could be because the air conditioner has not been washed for a long time and cannot be cooled. In addition to the lack of fluorine, the air conditioner will not cool down. If the air conditioner is used for a long time, we do not clean the air conditioner, and the filter inside the air conditioner will be too dirty.

This will also affect the quality and effectiveness of the air conditioner. If the air conditioner is not cleaned for a long time, it will breed bacteria and pollute the environment. It's easy to get sick in this situation.

The lack of power supply voltage causes the air conditioner to not cool down. If the refrigeration effect of the air conditioner is still not good after adding fluoride, it means that the air conditioner cannot be cooled due to lack of fluorine. At this point, we need to consider whether the air conditioner is not cooling due to insufficient mains voltage.

The normal starting voltage of the air conditioner is generally 220V. If the voltage doesn't reach that high, it will have an impact.

It may be that the freon is not enough, it may be that the filter screen of the internal unit is dirty, it may be that the condenser is dirty, or there may be a problem with the speed of the internal fan or the external fan, the power of the air conditioner is not enough, and the temperature outside is relatively high.

It may be due to the fact that the refrigeration system of the air conditioner has completely failed, or the air conditioner lacks fluorine, or it may be a problem with the quality of the air conditioner, or it may be that the air conditioner has been damaged, or there may be a problem with the exhaust air of the air conditioner.

It may be that the air conditioner is not refrigerated because it has not been cleaned for a long time, or the air conditioner is not refrigerated due to insufficient power supply voltage, or it may be that the air conditioner has been used for too long and has some faults.

If you add more refrigerant seeds, it may lead to the following problems:

1.The cooling effect of the air conditioner becomes worse: too much refrigerant of the air conditioner will make the cooling effect of the air conditioner worse, because the air conditioner needs more time to cool down too much refrigerant.

Therefore, it is recommended to add an appropriate amount of refrigerant according to the recommendations in the air conditioner's instruction manual, and do not add too much.

When the air conditioner is refrigerated, it will lead to the following possible results.

First of all, the cooling effect of the air conditioner will become more powerful. Refrigerant is the refrigerant of the air conditioner, and the increase in the amount of vertical matter added means that the air conditioner can provide stronger cooling under the same conditions. This will allow the indoor temperature to drop to the set target temperature more quickly, providing a more comfortable environment.

However, the addition of more refrigerants in air conditioners can also have negative effects. First of all, this will lead to an increase in the energy consumption of the air conditioner. Because more refrigerants are used, the air conditioner needs more energy to circulate it and cool the indoor air.

This will increase energy consumption and put more pressure on the environment.

In addition, the addition of refrigerant to the air conditioner may damage the air conditioning equipment. Excess refrigerant can cause an abnormal increase in pressure in the system, increasing the risk of refrigerant leakage. This will not only lead to instability in the air conditioning system, but will also increase the cost of repairs and refrigerant refrigerants.

Finally, using too much refrigerant can also have a negative impact on air quality. Chemicals such as hydrofluorocarbons (HFCs) are often found in refrigerants, and excessive releases can cause damage to the atmosphere, which in turn can contribute to global warming and climate change.

In summary, adding more refrigerant will bring stronger cooling effect, but it will also increase energy consumption, damage equipment, and have a negative impact on the environment. Therefore, when using the air conditioner, attention should be paid to adding refrigerant in an appropriate amount to avoid excessive use.

The amount of each air conditioner is different, and the air conditioner itself will be labeled with the amount of refrigerant, like how much refrigerant and how much fluorine is added. This won't work, you can let a professional teach you once, and it will be next time. The following describes the process of adding refrigerants.

First of all, turn on the air conditioner and adjust it to refrigeration. In this way, the external unit will be in normal working condition (open the panel of the indoor unit, remove the filter screen, and find that some of the evaporator has condensation or frost. In fact, it is due to the lack of refrigerant).

Open the small nut of the triangle valve connecting the outer machine and the pipe (not the one with the hexagon wire hole on the side of the oak eye, there is an inner hexagon wire on the side of the large and small pipes, which is used for collecting refrigerant when the air conditioner is moved.) I don't usually use it).

Connect it with a refrigerant hose (use a fluorine-filled hose to connect the refrigerant cylinder, repair the table, and the fluoride port to remove the air in the hose).

The pressure of the refrigerant to turn on is probably added.

After adding, screw on the nut and cover it.

Usually there is an inner hexagon screw wire on the side of the large and small pipes is used to collect refrigerants when the air conditioner is moved, and the normal refrigerants do not need to screw these two hexagonal screws, and there are individual hexagonal screws to be screwed on the hexagon screws of the big pipe (provided that the manufacturer does not have a thimble in the maintenance port of the air conditioner to screw, when encountering this air conditioner, the refrigerant connecting pipe is connected, and then the hexagonal screw wire in the large pipe can be added as long as it is twisted one or two times inward, and the small tube does not move, and then the connecting pipe of the refrigerant is dismantled after adding it. end