What are the consequences of adding R32 air conditioning refrigerant without vacuuming

Air conditioner chargingRefrigerantsFailure to evacuate will cause air and water to accumulate in the pipes, resulting in the air conditioner not being cooled.

When the air conditioner is installed, there will be non-condensable gas in the system (the composition of the air has non-condensable gas), and this part of the gas will occupy the limited space in the closed refrigeration system, resulting in refrigerant.

changes in the amount of charge; At the same time, the moisture contained in the air is throttled.

The role of vacuuming.

Remove non-condensable gas in the system: the presence of non-condensable gas will increase the condensation pressure of the system and increase the exhaust temperature, which will affect the refrigeration effect; It may also lead to carbonization of the lubricating oil at high temperatures, endanger the normal operation of the compressor, and even burn out the compressor motor.

Remove the moisture in the system: moisture is the biggest killer in the refrigeration system, first of all, the interaction between lubricating oil and moisture will generate acid, which will corrode the system, and at the same time will cause the phenomenon of "copper plating" and damage the compressor; At the same time, moisture can cause expansion valves.

Ice forms in the valve port or capillary, causing "ice plugging".

The above content reference: Encyclopedia - vacuuming.

Difluoromethane freon refrigerant.

R22 and R32 refer to the type codes of the refrigerants used in air conditioners. For example, many years ago, the vast majority of air conditioners used R22 refrigerant, but now most air conditioners use R410A refrigerant, and only a few air conditioners use R32 refrigerant. R32 refrigerant is a flammable and explosive refrigerant, which itself has certain dangers, so it is not used much.

R32, chemical name difluoromethane, molecular formula CH2F2. It is a refrigerant that is not, non-toxic, flammable, but still safe. R410 is a new type of refrigerant, which is used to replace the new refrigerant, which is composed of two quasi-azeotropic mixtures, mainly composed of hydrogen, fluorine and carbon elements, and has the characteristics of stability, non-toxicity and superior performance.

At the same time, because it does not contain chlorine, it will not react with ozone and will not destroy the ozone layer. In addition, the performance of air conditioners with new refrigerants will also be improved. R410A is internationally recognized as the most suitable refrigerant to replace R22, and has been popularized in Europe, America, Japan and other countries.

R32 is a single-substance refrigerant. The two are not interchangeable.

The role of vacuuming.

Eliminate the non-condensable gas in the refrigeration system to avoid the compressor doing ineffective work on the non-condensable gas and generating a waste of energy.

Hazards of not vacuuming:

When the air conditioner is installed, there will be non-condensable gas in the system (the composition of the air has non-condensable gas), and this part of the gas will occupy the limited space in the closed refrigeration system, resulting in a change in the charge of the refrigerant; At the same time, the moisture contained in the air will freeze due to low temperature after passing through the throttling element, resulting in ice blockage and affecting the operation of the equipment. The current environmentally friendly refrigerants are all mixed refrigerants, which are non-condensing in the system.

The gas causes a change in the mixing ratio of the refrigerant, which affects the effect of the air conditioner.

R32 refrigerant is a high-pressure flammable refrigerant, which is mixed with oxygen under high pressure and is prone to accidents.

Evacuation can remove non-condensable gases from the system, improve the utilization rate of refrigerant and ensure the operation of the equipment.

In summary, air conditioners using R32 refrigerant must be vacuumed.

Summary. Air conditioning refrigerant R32** is still more difficult because it needs to have a certain concentration, a certain space and a fire at the same time. Usually, it is difficult for air conditioners to meet these three conditions at the same time during use.

The gas pipes at home are much more dangerous than this, and the key is to standardize their use and operation.

The vacuum of the R32 refrigerant air conditioner is not cleaned, will the operation occur?

Air conditioning refrigerant R32** is still more difficult because it needs to have a certain concentration, a certain space and a fire at the same time. Usually, it is difficult for air conditioners to meet these three conditions at the same time during use. The gas pipes at home are much more dangerous than this, and the key is to rent the sails in a regulated state with the use of the old man.

The emptying of the top of the high-pressure valve that I opened directly is not clean, and it won't be **.

There is a certain chance that it will happen, but it is not 100% possible. Therefore, when using R32 refrigerant, it is recommended to vacuum according to the specifications for the use of R32 refrigerant. The main reason is that R32 is a combustible refrigerant, and it will mix air under specific conditions after the air intake of the non-slip vacuum unit, such as in the case of an ignition source, which has potential safety hazards.

Or safety first.

Are you referring to the possibility of seeing an open fire from the outside?

That's right. Is it really a big space?

Outside. It's possible.

This kind of thing can't be said absolutely.

Vacuuming is required. In particular, inverter air conditioners using R32 refrigerant need to be vacuumed with vacuum pumps.

R32 and R410A are relatively close to each other in the key parameters of the operation of the air-conditioning system, only emptying with refrigerant, once the emptying operation is not standardized, too much residual air in the system pipeline will lead to frequent failures of the air-conditioning unit during use.

And R32 refrigerant is a flammable and explosive substance, which must be very standardized in the process of installation, dismantling, and maintenance to avoid danger.

Hello, dear, what should I do if the R32 refrigerant is not vacuumed, connect the charging hose of the air conditioner manifold valve to the filling port of the low-pressure valve, and close the high-low pressure valve tightly; 2. Connect the filling soft and bright eggplant pipe joint with the vacuum pump. 3. Fully open the low-pressure handle of the manifold valve and start the vacuum pump to evacuate. 4. Generally, one air conditioner is vacuumed for about 15 minutes, two air conditioners are vacuumed for about 20 minutes, and three air conditioners are vacuumed for about 30 minutes.

5. After checking the vacuum, open the liquid valve to release the air to balance the system pressure and prevent air from entering when the pipe is removed. 6. Tighten the bonnet of high and low pressure valves and the bonnet of the charging port.

Hello, I'm glad to answer for you, what to do if the R32 refrigerant is not vacuumed 1. Connect the charging hose of the air conditioner manifold valve to the filling port of the low-pressure valve, and close the high and low pressure valves tightly; 2. Connect the charging hose joint with the vacuum pump. 3. Fully open the low-pressure handle of the manifold valve and start the vacuum pump to evacuate. 4. Generally, one horse air conditioner is vacuumed for about 15 minutes, two horses air conditioner is vacuumed for about 20 minutes, and three air conditioners are vacuumed for about 30 minutes.

5. After checking the vacuum, open the liquid valve to release the air to balance the pressure of the big rotten system and prevent air from entering when dismantling the pipe, and then completely open the high and low pressure valve after removing the hose. 6. Tighten the bonnet of high and low pressure valves and the bonnet of the charging port.