We are going to check the different parts of this Bitzer 20 ton two-stage compressor A device is installed in the suction part CIC Two wires come out of it The first is related to the intermediate stage sensor which is related to the winding The second connection is under the suction door The oil return connection is from the oil separator On the other side, you can see the subcooler and the injection valve, which opens and closes in a pulsed manner - a function similar to the expansion valve. siteGlass Also see the power terminal, we checked the sensors together Compressor carter side You can see two connections, the upper one is for balancing or equalizing the gas in parallel compressors The lower connection is related to gas and oil balance, which is used in parallel compressors This bottom connection is used for oil charging You can see the heater sheath Oil filter and oil magnet screw are installed in this part Two other connections can be seen on the oil pump - three-way negative connection A path with needles - a path without needles You can monitor the oil pressure or connect it to the pressure switch by means of these two negative and positive ports On this side of the oil filler screw, you can see the oil site glass and thename plate The first two cylinder heads do the compression stage The gas is directed from these two cylinder heads to the suction crankcase Then the gas enters the cylinder head of the second stage The final compression is done in this third cylinder head Then to discharge Remember at the beginning of the video two sensors from CIC would go out The sensor is connected to the third cylinder head We have high pressure cylinders on these Medium pressure You can also use this connection You can see the middle cylinder head together with the first cylinder head Again the middle pressure or You are viewing the medium pressure We can use these two connections for liquid injection When we don't use equalizer, we can do injection In cases where the temperature of our evaporator is below30 degrees But it is a little different in the side cylinders that do the initial compression In this cylinder head, we have low pressure and medium pressure So there is no high pressure in this cylinder head If we need a low pressure connection, we use these two connections We observe the pressure Setting up and installing two-stage compressors is different I will try to address it in future videos
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Негізгі бет Bitzer 20 ton two-stage compressor components
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