What is the method of charging refrigerant car air conditioning? _

Cars are now the necessary means of transportation, travel is more convenient, on the one hand, on the other hand is to travel felt comfortable, so now the summer arrived, is of common used in air conditioning, if the refrigerant inside is not enough, did not get the desired effect, small make up today to introduce you to the car air conditioning as the supplying what is method? And see it together. Automotive air conditioning as: supplying step 1. From the low voltage refrigeration and air-conditioning and cry when added to 0. 35 - 0. 55 mpa can again observe air conditioning refrigeration effect. If you can measure high voltage cannot be more than 2. 2Mpa。 2. When the air conditioning stopped from fluoridated add refrigerant everything. When the system pressure reaches 0. 8 - 0. 9 for appropriate 3 mpa. Run to let air conditioning refrigeration 30 minutes do careful inspection. Measuring pressure measuring low pressure to zero. 35 - 0. 55Mpa。 If high plus much if less and less. High pressure may have more than 2. 2Mpa. Listen to the voice if sound too depressing can also be added fluoride if sound too little quantity is not enough. Measuring temperature suction tube cooler has condensation temperature of exhaust condenser temperature at 80 degrees at about 55 degrees compressor suction tube cold dew in the exhaust pipe hot evaporator temperature than the ambient temperature of about 15 degrees. Test the working current total current close to the rated current if the current is too large, plus much if the current is too little and too little. This requires a system and circuit under the condition of normal test for compressor working current has much to do with the compressor suction pressure suction pressure high current is large inspiratory pressure bottom current is small if the system is blocked so the working current of the compressor is very bottom and the voice of the compressor is not normal. Automobile air conditioning as: supplying filling after detection is added when the correct way to refill must slowly to let air conditioning running 10 minutes after add pressure and current unavoidably again by several times as a standard and not to the time of the pressure and current that may have been added. Winter to add fluoride can disconnect four-way valve when the coil can also make indoor thermal head to open refrigeration can refrigeration temperature is reached. Sometimes also can let air conditioning dehumidification in the mode of it is not very tall to the requirement of temperature a try air-conditioning normally open after a period of time was cold wind blow to the body and can quickly reach the set temperature outdoor compressor can work for a while like a refrigerator to stop for a moment that would suggest that is normal. Otherwise it may need to everything. 2 measure thermometer was used to measure the indoor machine of the inlet and outlet temperature difference is explained in more than 8 ℃ as normal the bigger the temperature difference air conditioning work, the more thoroughly up to about 15 ℃. The difference of less than 8 ℃ may need to add everything refrigerants. Three look at boot after more than ten minutes to open the indoor machine panel should see evaporator copper tube wear full uniform on the part of the heat exchange plates is full of condensed water so less for normal high air humidity and vice. If half half no is likely to be short of refrigerant. Such as local frost or ice are not normal. Automotive air conditioning as: supplying air does not discharge adverse consequences of 1. Refrigerant charging quantity is insufficient, because the existence of the air natural part to take up space, don't smoke air filling directly, is likely to be completed before the refrigerant charging when the system pressure is too high, the rest of the refrigerant can't add to the air conditioning. 2. Extra air in the system can reduce air conditioning power, refrigeration effect. Because part of the compression is no refrigeration effect of air, this leads to increased engine load. So please before charging refrigerant in the operation of the vacuum. Ended here small make up today's introduction, the above is the small make up an introduction about the car air conditioning refrigerant filling method, hope that the introduction of small make up can help to you, then you should also pay more attention to the car maintenance, more regular maintenance of their own cars, can prolong automobile use oh, maintain the car together.

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