Clean up of air-conditioner system

the cooler used for a long time, series will appear oil plug or dirty plugging, etc. So these problems, what should we do? Below and take a look at the commercial freezer price, freezers series how to discharge of oil. Refrigerant can dissolve each other with lubricating oil and lubricating oil will accompany the refrigerant flow. But the refrigerant solubility with the kinds of lubricating oil and temperature change. In higher temperature place both fully dissolved, not easy to form the oil film and the pipe wall heat transfer. But in the low temperature evaporator, the air-conditioner refrigerant dissolved in oil, can make the evaporation temperature increased, also can appear statified phenomenon. When there is enough space in the evaporator, lubricating oil may as refrigerant evaporation and accumulating in the evaporator pipe. So, on the one hand, affect the pipe heat transfer, on the other hand, due to the accumulated in the evaporator pipe lubricating oil accounted for part of the space, the effect with the decrease of the refrigerant evaporation cooling, lead to bad air-conditioner refrigeration. Therefore, in the maintenance of air-conditioner, if found the drip or refrigeration evaporator, the discharge of oil should be used. So what methods of air-conditioner series oil discharge? 1. Use of compressed gas discharge of oil: ( 1) Release the refrigerant of three-way valve on technology of pipe welding at the same time, and the compressor muffler welding head welding, torsional compressor suction mouth closed. ( 2) Through the three-way valve to the refrigeration system into 0. 8 mpa pressure of nitrogen, due to the muffler has been welding, so should have kept the pressure gauge the pressure value. ( 3) With his fingers back into the trachea mouth, when feel fingers have pressure, suddenly let go of, the system of nitrogen, at the same time bring the product oil in the evaporator also came out. Repeated many times, until he had destroyed oil product line. 2, using the compressor high pressure gas discharge of oil: the muffler welding after open, not closed compressor back to port. Start the compressor, with his fingers back into the trachea mouths are first, when the finger could not suddenly let go, when gas gushing out of the product oil. It needs no nitrogen, but using compressor produced by high pressure gas discharge of oil. In order to better the low part of the product oil net, can be used in a refrigeration system contaminated with mild cleaning method. The evaporator injection after a certain amount of carbon tetrachloride, from the capillary into the high-pressure nitrogen gas. Still stuck with his fingers back into the trachea, suddenly let go, when stress will drip discharge with four nitride carbon and nitrogen. Repeatedly, until the product oil and carbon tetrachloride blowing off. The condenser section, there is no need for oil discharge processing. These are in the maintenance of air-conditioner, snow can use oil discharge method, we also can have a try, but professional problem, or to find like the snow of air-conditioner manufacturer to operate better.
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