Service Manual 207
Function
2.1.3 Compressor stage during oil return control
■ Compressor stage at normal oil return state
2 unit combination : 60Hz + stage 2
3 unit combination : 60Hz + stage 3
4 unit combination : 60Hz + stage 4
■ High pressure limit
■ Low pressure limit
* Low pressure limit under –10˚C= normal limit pressure – 26kPa
2.1.3 Compressor stage during oil return control
Compressor stage at normal oil return state
< 2441 kPa Normal oil return
Emergncy Control2441kPa ~ 2657 kPa
Pressure range Compressor stage
Pressure range Compressor stage
36kPa ~ 52kPa
Normal oil return
Emergncy Control
> 101 kPa
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