Is the vacuum pumping of inverter air conditioner a high pressure pipe or a low pressure pipe?

Low-pressure pipes. - Is the air conditioner malfunctioning? With my 7 years of experience in repairing air conditioners, I will tell you how to solve these faults, which should save you a lot of detours.

First: When the air conditioner fails, you can go to the [air conditioner failure** network] to inquire, down to the brand and model of the air conditioner.

When encountering a failure of the air conditioner, we must strictly follow the scientific procedures, and do not act blindly and disassemble at will when the situation is unclear, the fault is unclear, and there are countless in the heart. The consequence of this often amplifies existing faults, increases operating costs, shortens the normal service life of equipment, and leads to early scrapping of equipment.

The air conditioner is not refrigerated or does not refrigerate.

This problem is most common, and the lack of fluorine in air conditioners is the key.

When the machine is turned on, first touch the trachea and judge it by the temperature.

If it is cold, the speed of the fan may be low.

The inner tube scales and dust are cleaned or replaced.

If the inner tube is not considered cool, the thick tube may be flattened.

The return air temperature is not cool, and then touch the intake air to judge.

The air intake is cold and frosty, and fluoride is added to try again.

If the frost slowly disperses, it is a good decision to lack fluoride.

It is not difficult to see the aging of the press, and the lack of exhaust is the key.

Four-way gas is also commonly judged by fluoride collection.

High-pressure scales must be seen to be dirty, and they will be slow to refrigerate.

If you still don't understand, it is recommended that you go to the [Air Conditioning Fault **Net] basic knowledge area and take a look at the maintenance cases to get started.

I hope you get better and better, and the new year will be smooth, all your wishes will come true, you will be healthy, and your family will be happy.

- Finally, I wish you all the best in your work, fix the air conditioner as soon as possible, and live happily ———

- If you think it's good, please click on the answer, give a good review, and wish you a better life———

Vacuuming, exhaust air are low-pressure tubes

The refrigerant in the automobile air conditioning system will fail after a long time, and the refrigerant needs to be replaced, so the air conditioner needs to be vacuumed.

What is the difference between high-pressure pipe and low-pressure pipe (**)?

1. The pipe of the high-pressure pipeline is relatively thin, usually the dust cover is red, and there is a high-pressure mark "H" on the refueling nozzle of the pipeline. High-pressure pipes are generally used to detect the pressure of the air conditioner, and high-pressure pipes can also be used to add refrigerant when the air conditioning compressor is not working.

2. The pipeline of the low-pressure pipe is thicker, usually the dust cover is blue, and there is a bottom pressure mark "L" on the gas nozzle of the pipeline. Generally, it is best to use low-pressure pipelines to add refrigerant. If the air conditioner is turned on, the high-voltage switch must be turned off to prevent accidents, and the refrigerant must be gaseous when adding.

Method of adding refrigerant:

1. Buy the type of refrigerant that needs to be added, and prepare the required tools, such as high and low pressure pipes, pressure gauges, etc.

2. Connect the high and low pressure pipes to the car interface, and then connect the vacuum machine.

3. It is best to pump both sides of high and low pressure when vacuuming, so that the effect is faster and better.

4. If the liquid refrigerant is added, it needs to be added from the high-pressure pipe, and the low-pressure manual switch cannot be opened, nor can the compressor of the air conditioner be started, otherwise it will cause the risk of the refrigerant tank bursting.

5. When adding refrigerant with gas, it needs to be added at low pressure, and the refrigerant filling tank cannot be turned upside down, and the high-pressure pipe switch cannot be opened, otherwise there is a risk of bursting the refrigerant tank.

Air conditioner low-pressure pipes and high-pressure pipes can be distinguished by the following aspects:

1.Pipe color: In general, the color of low-pressure pipes is thick black or thick silver, while the color of high-pressure pipes is slender red or elongated blue.

2.Pipe location: The low-pressure pipeline is generally located between the indoor unit and the outdoor unit, while the high-pressure pipeline is located between the outdoor unit and the indoor unit.

3.Pipe pressure: The pressure of low-pressure pipes is generally in between, while the pressures of high-pressure pipes are in between.

4.Pipeline use: Low-pressure pipelines are mainly used for the evaporation and heat absorption of refrigerants, while high-pressure pipelines are mainly used for the compression and heat release of refrigerants.

It should be noted that different brands and models of air conditioners may have different pipe colors and positions, so it is necessary to judge the specific situation when distinguishing.