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2. Refrigerated oil management
2.1 The role of refrigeration oil in compressors
In SL series compressors, refrigeration oil has the following functions:
a. An oil film is formed between adjacent compression cavities and between the
compression cavities and the shell to reduce the leakage of refrigerant gas during the
compression process and improve the compressor efficiency.
b. An oil film is formed in the bearing to ensure the normal operation of the bearing.
c. Absorb and take away the compression heat generated by the refrigerant gas during
the compression process and the friction heat generated by the bearing during the mechanical
movement, so as to reduce the compressor discharge temperature.
d. Control of cooling capacity regulating slide valve.
2.2 SL compressor specified refrigeration oil
The refrigerant
Refrigeration Oils
( Refrigeration Lubricant)
Density
Flash Point
Table 2-1 Technical parameters of refrigeration oil ( Refrigeration Lubricant)
Note:
1) RFC only recognizes specified refrigeration oil;
2) The minimum starting oil temperature of the compressor is 30 ;
3) 6100 ( this item No is from company's order system), equals to AB100 refrigeration oil ( Refrigeration Lubricant);
4) 6170 ( this item No is from company's order system), equals to POE170 refrigeration oil ( Refrigeration Lubricant);
5) The detailed parameters of refrigeration oil ( Refrigeration Lubricant) on the Table 2-1 will vary with different
brands of refrigerants and lubricants
R22
6100 (AB100)
0.868
196
R404A/R507
6170 (POE170)
0.98
170
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