Is The Old Window Machine Not Cool Anymore? Before Adding Fluoride For Cleaning, Check The Price And Reasons.

As the weather gets hotter day by day, it would be really worrying if the old-fashioned window air conditioner at home suddenly stops cooling.

The first reaction of many friends is that it is time to add fluoride, but they are not very clear about the specific operation method and do not know how much it will cost.

In fact, adding fluoride to window air conditioners is not as mysterious as you imagine. Today I will share this complete method with you in detail. After reading this, you will be able to have a certain understanding of it.

How much does it cost to add fluoride to a window air conditioner?

When it comes to fluoridation, what everyone is most concerned about is definitely the price.

The cost of adding fluoride to window air conditioners is not fixed, it mainly depends on the type used refrigerant .

Most of the old-fashioned window machines use R22, which is what we usually call Freon. For a 1.5-horsepower window machine, the cost is between 60 and 100 yuan. For a 2-horse window machine, the cost is 100 to 150 yuan. For a 3-horse window machine, the cost is 150 to 200 yuan. For a window machine of 5 or more horses, you have to start from 200 yuan.

Nowadays, the newer inverter window machines use R134a. This fluorine-free refrigerant is much more expensive, roughly three to five times that of R22.

It should be made clear that these prices are only a reference given by the market. Different regions and different masters will have different charges. The fees for home visits and maintenance fees sometimes have to be calculated separately.

Window air conditioner is not cooling, don’t rush to add fluoride yet

After realizing that the air conditioner cannot cool down, many people's first reaction is that it is lacking fluorine. In fact, this is not necessarily the reason.

Let’s first look at the external factors. The room area is too large, the air conditioner has insufficient horsepower, and the cooling effect is naturally poor; the air conditioner is installed in an inappropriate location, the ventilation pipe is too long or bent too much, and the heat exchange efficiency is low, which will also lead to lack of cooling; another situation is that the outdoor temperature is too high. When it exceeds 43 degrees, most air conditioners have difficulty transferring indoor heat to the outside.

After eliminating these, let’s look at the problem of the air conditioner itself.

If a new machine you just bought is not cooling, you may have to wonder if there is a quality problem with the machine itself.

If an older machine that has been used for several years produces significantly more noise and vibration than before, the possibility of compressor aging is higher.

Indeed, the most common situation is that the refrigerant leaks or the refrigerant amount is insufficient. Only at this time should fluoridation be considered.

Add fluoride to the window air conditioner step by step

If the inspection finds obvious traces of oil on the refrigeration pipeline, it can basically be determined that there is a leak.

When getting started, the required preparations are not complicated. Prepare a one-way valve, or a three-way maintenance valve, a fluorine bottle, a vacuum pump that can extract air, and a scale, etc. Then you can start the corresponding operation process.

First, cut off a small section of the filter process pipe, then insert the one-way valve into the remaining process pipe to a depth of about one centimeter, and then weld it firmly.

You can even choose a copper tube with a diameter of four millimeters and a length of about 200 millimeters, insert one end of it into the process pipe and weld it, and weld the other end with the connecting copper pipe of the three-way maintenance valve.

The second step is to find the leakage on the refrigeration pipeline. After the repair welding is properly handled, start the compressor and vacuum pump simultaneously, causing the air in the pipeline to circulate and be pumped out at the same time, thus speeding up the vacuuming rate.

The third step is to connect the fluorine bottle to the three-way maintenance valve, and remember to drain all the air in the connecting pipe first.

When the air conditioner is shut down, place the fluorine bottle upside down to perform the liquid fluoridation operation. At the same time, use a bench scale to weigh it.

When the weight of the fluorine bottle drops is equal to the amount of fluoride specified by this air conditioner, immediately close the valve of the fluorine bottle and never add too much.

In liquid form, fluoride is added through the filter process tube at a very fast speed. Normally, it takes about three minutes to add fluoride to the predetermined amount.

Several key reminders during fluoridation operations

There are several areas where special attention should be paid to the entire fluoridation process.

First, make sure the air conditioner is powered off before operation. Safety always comes first.

Second, when welding process pipes, the action should be quick and precise to prevent surrounding parts from being burned due to being in a high temperature state for a long time.

First, the step of vacuuming cannot be omitted. Second, once there is residual air in the pipeline, third, it will not only affect the refrigeration effect, but fourth, the compressor may also be damaged.

First, the amount of fluoride needs to be strictly controlled. Second, if too much fluoride is added, it will cause a decrease in refrigeration efficiency. Third, it may even cause liquid slugging, which will cause damage to the compressor.

If you are not familiar with welding operations, or do not have the corresponding tools and materials, it is recommended to find a professional repairman to perform the work. Although it will cost more, it is safer.

How to reduce Freon loss in daily use

Rather than waiting until it stops cooling and then worrying, it is better to pay more attention to maintenance.

The condenser in a window air conditioner is very easy to accumulate dust, and the evaporator is also easy to accumulate dust. If the dust is too thick, it will affect heat dissipation and heat absorption, which will indirectly increase the workload of the refrigerant.

It is recommended that whenever summer comes before use, the casing of the air conditioner should be disassembled, and then use a soft brush or vacuum cleaner to clean the dust on the fins.

In addition, the drainage pipe of the air conditioner must be ensured to be smooth, because water soaking the pipe joints for a long time can easily accelerate corrosion and leakage.

Every year, when turning on the machine, pay attention to whether the cooling effect has significantly deteriorated. If you feel that it is not as cool as before, you can ask a master to check the pressure at home in advance. Small leaks can be discovered earlier and repair welding can be carried out earlier, so as to avoid overhauling after all Freon leaks.

Adding fluoride to window air conditioners is actually not difficult once you understand the principles and steps.

The key is to first determine whether the malfunction is caused by a lack of fluorine, and don’t add it blindly.

During daily use, paying more attention to keeping it clean and observing can effectively extend the service life of the air conditioner and save a lot of maintenance costs.

If you encounter a situation that you cannot handle yourself, seek professional help as soon as possible. Safety must always be your top priority.