After replacement, oil change is required for 100 hours of continuous operation 3. The refrigeration unit used for pipe cold storage should be replaced after 100 hours of operation 4. Change the oil according to the cleanliness of the refrigeration oil of the refrigeration system. Second, the type of refrigeration oil of BITZER semi-hermetic compressor
In the condenser and evaporator of the refrigeration unit, and in order to ensure the return of the compressor oil, in addition to the compressor outlet oil separation refrigerant, the refrigeration oil will adsorb and dissolve the refrigerant. This situation is especially obvious after a long shutdown, the unit is energized, the technology is good, you have to do it yourself, even if you tell the operation, a little mistake will cause refrigeration and damage, or serious refrigeration will cause compressor scrapping, it is recommended to feel sorry for some maintenance costs, find a professional to do it, I have met someone, save money, buy Freon yourself, ask
R-404A, as a widely used medium and low temperature refrigerant today, is often used in cold storage, food refrigeration equipment, marine refrigeration equipment. What kind of refrigeration oil is finally used in different equipment and different application places should be followed by refrigeration compressor and refrigeration (air conditioning) equipment factory
The cold storage compressor can never be vacuumed by the press itself; The master who repairs the air conditioner may do that, the cold storage is more professional than the air conditioner to vacuum the air, connect the refrigerant pipe to the fluorine bottle, open the fluorine cylinder first, and then connect the valve, so that there is no air in the connecting pipe. Generally, first add high pressure, then add low pressure, feel that the increase is almost the same, you can turn it off, and then turn it on, look at the pressure, less and then in turn
