3
First Orbit: SUCTION
Second Orbit: COMPRESSION
Third Orbit: DISCHARGE
Figure 1-2 Compression Process
1.3 Compressor Design Pressure
The compressor’s design pressure is shown in Table 1-1. The operating pressure in the system shall be lower
than compressor design pressure.
Table 1-1 Compressor Design Pressure
High Pressure Side MPa(G)/psig
1.4 Refrigerant Oil
To improve the reliability, the specified designed premium quality refrigerant oil is used in the compressor.
The refrigerant oil containing foam suppressor has the excellent thermal stability and high durability for
overload conditions.
1.4.1 Oil Type
Each type of refrigerant oil is specially designed for certain types of refrigerant and operating conditions, if
additional oil charge is added in the field, Only specified oil should be used.
Table 1-2 Type of Oil
1.4.2 Functions of Refrigerant Oil
1) Lubricate the moving parts to reduce mechanical friction.
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