Air conditioning refrigerant amount of filling the concrete implementation method have those?

How to add refrigerant air conditioning, and there are those who add refrigerant, found that a lack of will know how to add air conditioning refrigerant, after about the concrete operation process, etc. 1. Air conditioning refrigerant a weight measuring step: when the air conditioning filling freon, indispensable is to first of all, we need to prepare a small platform scale, why do we need to prepare a small platform scale, we look down the refrigerant cylinders first put into a container, we are then injected below 40 ℃ warm water in the container or boiled water can also be, mainly is suitable for low pressure filling refrigerant steam air conditioner, we want the above before you operate the air conditioning down before filling the cylinder, the weight of the warm water and containers, pay attention to the container in the process of filling the pointer to the change, and then when the reduction of refrigerant in the cylinder is equal to the filling quantity of need can stop filling, may also directly without weighing cylinders, with warm water and the way of air conditioning refrigerant adding have wide acceptance in the market, at present the common refrigerant is * add methods. 2. Air conditioning refrigerant pressure measurement in step 2: answer the refrigerant step 1 we will first to air conditioning refrigerant temperature and pressure of saturated vapor is one-to-one correspondence relationship, if you have to live the evaporation temperature of air conditioning refrigerant can find out the corresponding evaporating pressure. Then we just want to see the air pressure gauge pressure value by the high and low pressure gauge display. This place we can according to the installed on the detector system pressure gauge pressure value can judge whether the refrigerant filling quantity should be suitable. Then, according to display system we adopt is high, the low pressure gauge or compound pressure gauge testing fluorine filling in the refrigeration system, if the air conditioning equipment to detect high pressure unit pressure values conform to the scope of the said that refrigerant filling amount is right, if the air conditioning system to detect low pressure all low indicates filling the quantity is not enough, then we can to air conditioning in add some refrigerants, until the display is normal. 3. Air conditioning refrigerant step three temperature measurement: we are pay attention to add air conditioning refrigerant must use semiconductor thermometer, main effect is to measure the liquid evaporator set of import and export, export and so on each point temperature, then the root torque measurement problem to determine how the refrigerant filling quantity. Generally in the measurement of the specific location is the temperature difference between two points in the evaporator of the import and export about 2 degrees all belong to normal phenomenon if wasn't up to specification is not normal, we can eradicate temperature gap to empty to add refrigerant, pay attention to when adding also not much, also not much, you can try to more. 4. Air conditioning refrigerant step four working current measurement: the fourth way is to use pliers type current meter to measure the working current of air conditioning, it is worth noting that when the air conditioning refrigeration, 35 ℃ environment temperature is normal, as measured by the working current of the higher the working temperature, the use of air conditioning current relatively increases accordingly, temperature, the lower current decrease accordingly. In the normal, two cooling fan, according to the working condition of air conditioner test under the condition of current value.

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