With the continuous development of science and technology, frequency conversion air conditioning is also updated year by year. From the old air conditioning, it has developed into the most popular frequency conversion air conditioning. One of the characteristics of frequency conversion air conditioning is to save electricity. The power consumption of a night is only one tenth of that of ordinary air conditioning. After several years of use, the cost is very low. Frequency conversion air conditioning is also needed after fluoride pressure to better use, then how to fluoride frequency conversion air conditioning? What about pressure? Next, take a look at the introduction of Xiaobian for you.
Frequency conversion air conditioning fluorination pressure:
The scale on the table is the pressure, through the pressure display can know the compressor exhaust pressure (high pressure) and intake pressure (low pressure), judge whether the operation of the system is normal, such as system blockage, refrigerant leakage and other failures. The table should have MPa(mpa), bar(bar) are commonly used domestic pressure units, 0.1MPa=1bar= 1kg/square centimeter, kg/square centimeter – this unit is not the national legal unit of measurement, is not marked on the table, but we still use more verbally, Take the commonly used R22 refrigerant as an example. According to the different ambient temperature, the low pressure is generally 3^6bar and the high pressure is generally 10^25bar when the refrigeration system is working normally.
Fluorination method:
Prerequisites:
1. When fluorinating frequency conversion air conditioning, we must ensure that this air conditioning meets the conditions of its use and the corresponding installation standards.
2, the need to fluoridated air conditioning its control system and work execution elements must be normal, at the same time its piping system has effectively eliminated the air, moisture, blocking, leakage, at the same time the air conditioning screen and internal and external heat exchange elements should be clean, while ensuring good ventilation.
3. The tools and materials used for air conditioning maintenance must be qualified.
4. When fluorinating air conditioning, it is necessary to operate in accordance with strict fluorinating process.
Frequency conversion air conditioning fluorination method
When the frequency conversion air conditioning is actually repaired, the accuracy requirement of the amount of fluorine in the air conditioning is very high. For the air conditioning fluoridation, we can use the following methods:
Quantitative fluoridation: the use of quantitative fluoridation, that is, in the three-way cut-off valve process port connected to the three-way valve, pressure gauge, fluorinated hose or vacuum pump. After fluoride vacuuming, fluoride is added slowly. At the same time, it is necessary to use more accurate measuring tools such as platform scale to weigh. When the reduction of refrigerant in the fluorine bottle is equal to the standard amount of fluoride on the air conditioning plate, the valve of the fluorine bottle should be closed, and the fluorine work is completed.
Current measurement: Current measurement is mainly to set the air conditioner to refrigeration or heating under the high-speed wind state, so that the air conditioner can operate. In the low pressure on the cut-off valve process out, while fluoride while observing the change of the clamp ammeter, until close to the rated working current value on the air conditioning nameplate, and then close the fluorine bottle valve, then let the air conditioning continue to run for a certain time, until in the state of refrigeration room temperature reached 27℃, heating state reached 20℃, In consideration of outdoor air temperature, grid voltage and other factors to fine-tune the amount of fluoride to reach the rated current value.
Through the introduction of Xiaobian, you should have a certain understanding of the method of frequency conversion air conditioning fluoridation pressure, so that you can not please professional air conditioning fluoridation pressure master home service, you can do it yourself, so that you can save a large amount of cost, it can be said to be killing two birds with one stone ah. Although the price of frequency conversion air conditioning is much more expensive than ordinary air conditioning, its daily use cost is very low, so consider that you buy frequency conversion air conditioning is still more cost-effective than buying ordinary air conditioning.
