Compressor Stage During Oil Return Control - LG multi V PLUS Service Manual

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
Pressure range
2441 kPa ~ 2657 kPa
< 2441 kPa
Low pressure limit
Pressure range
> 101 kPa
36kPa ~ 52kPa
* 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
Component
Inv Compressor
Sub unit 's
compressor
Fan
Main LEV
4 way valve
Subcooling LEV
Hot gas bypass
valve
Compressor stage
Emergncy Control
Normal oil return
Compressor stage
Normal oil return
Emergncy Control
Starting
30 Hz
All off
High pressure
0 Hz
Full open
On off
min.
On
Running
60 Hz
On
High pressure
control
Full open Base pulse
Off
min.
On
Function
Ending
30 Hz
Off
control
On
min.
On
Service Manual 207