LG MULTI V M ARNU07GTU 4 Series Svc Manual page 18

Function
2.1.2 Oil return control on heating mode
MULTI V M
Component
Inverter compressor
Fan
Main EEV
Subcooling EEV
4way valve
Indoor Unit
Component
Fan
Thermo on unit EEV
Thermo off unit EEV
n Oil return operation time : 3 min for running step
n Starting condition:same as cooling mode
n Oil return process ends if compressor protection control starts
Starting
30Hz
OFF
300 pulse
Min. pulse
ON
Starting
Normal control
Normal control
60~100 pulse
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Running
Setting Value
Normal control
Max. pulse
Min. pulse
ON OFF ON
Running
Normal control
400~800 pulse
400~800 pulse
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Ending
40Hz
OFF
200 pulse
Min. pulse
ON
Ending
Normal control
1200 600
Normal Control
1200 600
60~100 pulse