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You'll need to find a wrench and a hexagonal wrench (4mm or 5mm for air conditioners), and if you live in a building, you'll need to fasten a seat belt. Then follow the following steps: turn on the machine to cool it, use a wrench to remove the cap nut of the high and low pressure valve head of the air conditioner (that is, the nut of the two brass parts connected to the copper pipe on one side of the machine), close the valve of the high-pressure pipe with a hexagonal wrench (usually the one of the thin pipe, tighten it clockwise), wait for half a minute to a minute and then close another valve, and then immediately shut down and disconnect the power supply to disassemble.
Advice: Stay safe. It's best to ask a professional to do it)
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Turn the air conditioner on to cool down. After the air conditioning compressor is started, use the hexagon wrench to close the three-way valve of the thin pipe of the outer machine, count about 60 in mind, and then quickly close the three-way valve of the thick pipe and cut off the power. In this way, the fluoride is put away, you can fold the pipe and wire, if there is a small amount of gas in the pipe, it is not too important, if the air flow is still very large, then the fluoride is not put away, and it is good from one time.
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After the compressor works, pay attention to let the installer start the machine and run for a while! , and then close the valve of the connection port, as long as you remember, empty the air, an ordinary Phillips screwdriver is enough, when dismantling the indoor and outdoor connecting pipes, tell the installation master to add a little more refrigerant to the outdoor machine, and then connect the indoor and outdoor connecting pipes, hexagonal screwdriver, about a few minutes.
Two wrenches are required when the air conditioner is moving. When it is installed in a new place, the refrigerant (i.e. refrigerant) is immediately collected so that there are no problems. That way you won't leak.
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1. Turn on the power of the air conditioner, let the air conditioner be in a refrigerated state, and use an Allen wrench when the compressor is working.
Close the high-pressure side (thin pipe) valve to prevent the vapor fluorine from entering the indoor unit evaporator.
At the same time, the liquid fluorine in the evaporator is sucked back into the Li Chan condenser.
- That is, the outdoor unit, if the piping is too long, or there is an oil return bend, stay longer, listen to the sound of the compressor, when the compressor sound is dull, immediately close the low-pressure side (return pipe, thick pipe) valve, when the valve is closed, immediately disconnect the air conditioner power supply! Your air conditioner is over.
2. In winter, the air conditioner needs to deal with the refrigeration state when collecting fluoride, there are two ways to collect fluorine, one is to hit the refrigeration state, but because it is cold in winter, you need to hold the ring temperature probe with your hand and heat it. In this way, the refrigeration will be turned on in winter, and the other is to hit the heating mode, and then pull out the four-way valve of the external machine.
power supply. Either way, after the compressor starts, close the fine valve first, wait for 30 seconds, and then close the coarse valve, and the fluorine collection is completed.
3. Adjust the remote control to the refrigeration state and set the temperature to 18 degrees. Then press the light button four times in a row to enter the forced cooling state.
4. In the cold state: open the covers of the two connecting pipe valves of the outdoor unit with a wrench. With five hexagon wrenches, I put in the thin (high-pressure valve teasing) valve port and close the valve quickly, and after about 20 seconds, I close the thick valve (low pressure) and shut down and cut off the power.
In this way, the fluorine is received from the outside machine. In this way, the machine can be disassembled.
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1. Method: The fluoride collection method should be correct, open the lid of the two connecting pipe valves of the outdoor unit in a cold state, open it with a wrench, use 5 hexagonal wrenches, put it into the thin (high-pressure rental core valve) valve port, close the valve quickly, and close the thick valve (low pressure) after about 60 seconds, and then shut down the machine quickly and cut off the power, so that the fluorine will receive the external machine, so that the machine can be disassembled.
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Gree Variable Elimination Key Qin Frequency Air Conditioner Winter Refrigerant Harvesting Steps:
1. Turn on the machine first and let the air conditioner run in refrigeration mode for a while;
2. Use a wrench to open the copper cap of the high and low pressure globe valve of the outdoor unit, and there is an inner hexagonal copper valve core inside;
3. In the refrigeration state, first use the hexagon key to rotate the spool of the high-pressure globe valve inward and lock the spool;
4. After locking the high-pressure globe valve, wait for the unit to run for 2 minutes, and lock the valve core of the low-pressure globe valve;
5. Power off and turn off the unit;
6. According to the above steps, put the cold and bright disabling medium into the condenser pipeline.
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The methods of collecting refrigerant for air conditioners are:
1. Vacuum pumping method: connect the air conditioner cold sock collector to the air conditioning system, extract the refrigerant in the air conditioning system, and collect it into the collector.
2. Exhaust method: connect the air conditioning refrigerant collector to the air conditioning system, sell the refrigerant exhaust in the air conditioning system, and then collect it into the collector.
3. Suction method: connect the air conditioning refrigerant collector to the air conditioning system, use a suction pump to pump out the refrigerant in the air conditioning system, and then collect it into the collector.
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The collection of air conditioning refrigerant requires professional technology and equipment, if you do not have the relevant experience and tools, it is recommended not to try it yourself.
In the case of a slag line, special tools and equipment are required to collect the refrigerant from the air conditioner, such as vacuum pumps, refrigerant collection bottles, pressure gauges, etc. The following points need to be paid attention to when operating:
Turn off the power of the air conditioner and unplug it to avoid the risk of electric shock.
According to the model and specifications of the air conditioner, confirm the type and quantity of refrigerant that needs to be charged.
Use the pressure beam force meter to check the pressure and quantity of refrigerant inside the air conditioner and make sure it is within a safe range.
Connect the refrigerant** unit and the vacuum pump to pump the refrigerant from the system and store it in the refrigerant collection bottle.
Clean the radiator and filter inside the air conditioner and check whether the other parts are normal.
Add the right amount of new refrigerant according to the air conditioner's manufacturer's instructions and make sure the pressure and quantity in the system meet the standard requirements.
As receiving and adding refrigerant requires specialized skills and equipment, it is important to consult with a professional technician or a certified aircon maintenance company to ensure the safety and effectiveness of your operation.
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Ordinary household split air conditioner refrigerant** steps:
1. The air conditioner operates in open refrigeration mode, or the forced air conditioner runs in refrigeration mode;
2. Connect the refrigerant composite pressure gauge on the needle valve on the stop valve of the coarse tube outdoor unit of the curved Wuzi air conditioner;
3. Quickly close the shut-off valve of the thin pipe in the connecting pipe of the internal and external machine;
4. When the composite pressure gauge shows that the refrigerant gauge pressure is less than 0, quickly close the coarse pipe shut-off valve; Refrigerant ** completed.
**After the refrigerant is finished, remove the hose of the refrigerant composite pressure gauge and put the valve cap of the globe valve needle back; When the composite pressure gauge shows that the pressure of the low-pressure pipe is lower than 0, the refrigerant is completed.
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Dear, I'm glad to answer Changyuanqing for you! 1.First of all, the first step is to turn on the air conditioner and put it into refrigeration mode, because this fluoride is closely related to the refrigerant.
The air conditioner turns on the refrigeration grip mode 2Find a wrench to unscrew the nut of the valve of the air conditioner outdoor unit and unscrew the nut 3After the air conditioner turns on the refrigeration mode, find an Allen wrench to lock the high-pressure pipe valve of the air conditioner (the high-pressure valve is a thin tube, and the hexagon is locked clockwise) to prevent the refrigerant in the process of fluoride collection from running into the pipe again and locking the thin pipe 4
Observe the sound of the air conditioner compressor, close the low-pressure valve (the low-pressure valve is a large pipe, and the inner hexagon is locked clockwise) when the compressor operation sound changes significantly during the fluoride collection process, and the time varies according to the size of the air conditioner and the complexity of the system pipeline. Lock the thick pipe 5After unplugging the power supply of the air conditioner, you can remove the connection wires and copper pipes between the internal and external unitsNote:
The connecting pipe is copper, and it cannot be coiled into a dead bend, otherwise it will affect the flow of refrigerant, resulting in no cooling and heating. Secondly, the leakage is to wrap the head of the copper pipe and the connection port of the external machine with tape to prevent dust or other sand from entering the pipeline and causing blockage.
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Refrigerant is a substance that easily absorbs heat into a gas and easily exothermic into a liquid. In the early refrigeration plant, ammonia was used as cold coal, and when ammonia was pressurized, it was exothermic and turned into liquid; When a high-pressure liquid is depressurized and turns into a gas, it absorbs heat.
The refrigerant used in air conditioners commonly used in daily life is chlorofluorocarbons, but the chlorofluorocarbons used in the past can damage the ozone layer, and scientists have developed chlorofluorocarbons that do not destroy the ozone layer.
The ideal refrigerant is non-toxic, non-corrosive, non-corrosive to metals and non-metals, non-combustible, easy to detect when leaking, chemically stable, non-destructive to lubricating oil, has high permeability and high evaporation latent bush refers to rent heat, and is harmless to the environment.
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The refrigerant in an air conditioner is a chemical substance, usually a freon or other hydrofluorocarbon, also known as a refrigerant. This substance can carry a large amount of heat at low dispersion temperature, so it plays an important role in transmitting the heat of chongmu cultivation in air conditioning.
The working principle is that as the refrigerant passes through the air conditioner's evaporator, the surrounding hot air is drawn in and the refrigerant is liquefied. At this time, the refrigerant will absorb the heat energy in the air, thus turning it into a high-temperature and high-pressure gas, and then enter the condenser through the compressor, release the heat energy to the outside world, and then condense into a liquid state at low temperature and low pressure, and then re-enter the evaporator, and the cycle repeats.
The refrigerant used in air conditioning needs to have relatively high chemical stability, controllability, and the characteristics of not damaging the environment. However, some commonly used refrigerants, such as freon, have been proven to be destructive to the atmosphere and potential environmental risks, so countries have mobilized to ban freon and some commonly used chemicals within a certain period of time, and gradually promote low-carbon and environmentally friendly new alternative refrigerants, such as the widely used new refrigerant R410A, Volpe R32, etc.
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The refrigerant in air conditioners is a special substance used for cooling and heating, usually freon, hydrofluorocarbons or trifluoromethane. These substances have the characteristics of low boiling point and high heat of evaporation, and act as heat transfer medium in refrigeration systems.
The working principle of refrigerant in air conditioning is: the refrigerant at low temperature and low pressure is inhaled through the compressor, and pressurized and compressed into a state of high temperature and high pressure; Subsequently, in the condenser, the refrigerant in the high-temperature and high-pressure state releases heat to cool down and compress; Then, the cooled refrigerant enters the evaporator and exposes it to the low temperature environment in the room and expands to a low temperature and low pressure state, and the cycle is carried out.
The cooling or heating effect of the refrigerant during the circulation in the air conditioner mainly depends on the heat released or absorbed during its phase transition (i.e., the transformation between the liquid and the gaseous state).
It should be noted that because some refrigerants may cause damage to the environment, safe and legal methods should be used as far as possible when disposing of waste refrigerants, such as sending them to designated ** stations or handing them over to Li Suixi for disposal by professional companies.
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The refrigerant in the air conditioner is generally freon chemicals, and hail is also known as freon refrigerant, including R22, R134A, R410A, etc.
These bent sail refrigerants have good thermal conductivity, cyclic dross and chemical stability, which can effectively absorb and release heat, while also being reliable and environmentally friendly. However, it should be noted that since freons have a destructive effect on the ozone layer of the atmosphere, the use and disposal of refrigerants should comply with relevant environmental regulations.
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The refrigerant in the air conditioner, commonly known as [RefrigerantsIt is also a refrigerant used in air conditioning compressors。The working fluid that transmits heat energy in the main spring line of the compressor tube and produces a freezing effect. There are many types of refrigerants, such as freon, alkanes, ammonia, and carbon dioxide.
The most commonly used are the freons R12, R22, R502 and R134A.
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The refrigerant in air conditioning generally refers to freon (English name: freon) or hydrofluorocarbon (English name: HFC), which is a commonly used refrigerant used in the refrigeration process of air conditioners, refrigerators and other refrigeration equipment.
Among them, Freon is divided into R22, R134A, R404A and other types, while HFCs are divided into R32, R600A and other types. These refrigerants have the characteristics of good low-temperature refrigeration performance and poor heat conductivity, which can effectively absorb and release heat, so as to achieve refrigeration effect.
It is important to note that due to the destructive effect of refrigerants such as Freon on the ozone layer in the atmosphere, it has been gradually banned or restricted for use in the wilderness. Therefore, some new air conditioners and refrigerators have begun to use more environmentally friendly refrigerants, such as R290.
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The refrigerant in the air conditioner is the working substance used in the refrigeration cycle of the air conditioner, and its main role is to absorb and release heat.
Common air conditioners are:
1.R22: The earliest and most widely used refrigerant in the world, but it has been phased out due to its damaging effect on the ozone layer.
2.R410A: At present, the refrigerant used in the mainstream of household air conditioners has no ozone depletion potential, but has a high global warming potential.
3.R32: A new type of environmentally friendly refrigerant, with low global warming potential, but high liquefaction pressure, and certain safety hazards.
4.R290 (propane): the ultimate environmentally friendly natural refrigerant, the global warming potential is close to zero, but it is highly flammable and easy**, and there are certain hidden dangers in its use.
5.R744 (carbon dioxide): A natural refrigerant with no chemical synthesis and zero global warming potential, but a higher risk type than other commonly used refrigerants.
In addition to the commonly used refrigerants mentioned above, there are also newly developed refrigerants such as R1234YF for automotive air conditioners, which have higher safety and energy efficiency. In general, the current air conditioning refrigerant has the following characteristics:
1) R22 is gradually phased out, and R410A is the mainstream refrigerant;
2) The new generation of refrigerants is more environmentally friendly, but the liquefaction pressure and danger may be higher;
3) Ideal refrigerants are both efficient and environmentally friendly, but they still face technical and safety challenges;
4) The selection of air conditioning refrigerant is to comprehensively consider its energy efficiency, environmental protection, economy and safety of use.
At present, R32 and R290 are known as the most potential environmentally friendly refrigerants in the air conditioning industry, but their widespread use also requires air conditioning manufacturers to solve their problems in terms of safety. If refrigerant technology continues to advance, air conditioning may usher in a refrigerant revolution in the future.
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