LG MULTI V ARUN072BTE4 User Manual

Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
11
Outdoor Unit Functions
SPECIAL CONTROLS
Oil Return Control
Oil Return Control
Oil return operation recovers any oil that has accumulated in the piping and returns it to the compressor. Each component operates as shown
in the tables below during oil return.
Table 2: Outdoor Unit Oil Return Control in Cooling Mode.
Component Start During Oil Return Operation Stop
Inverter Compressor 30Hz Set Value 30Hz
Fan Normal Control Normal Control Normal Control
Main EEV
Upper: Minimum Pulse
Lower: Maximum Pulse
Upper: Minimum Pulse
Lower: Maximum Pulse
Upper: Normal Control
Lower: Normal Control
Subcooling EEV Minimum Pulse 20 Pulse 80 Pulse
Four-Way Valve Off Off Off
Table 3: Indoor Unit Oil Return Control in Cooling Mode.
Component Start During Oil Return Operation Stop
Fan Normal Control Off Normal Control
Thermo On Unit EEV Normal Control Normal control Normal Control
Thermo Off Unit EEV 40 Pulse 400 Pulse 40 Pulse
Oil Return Signal Off On Off
• Start: Oil return operation begins when the oil sensor measures low oil levels.
• Oil Return Operation will run for three (3) minutes.
• Stop: Oil Return Operation will end if / when compressor protection control starts.
Oil Return Control in Cooling Mode
Table 4: Outdoor Unit Oil Return Control in Heating Mode.
Component Start During Oil Return Operation Stop
Inverter Compressor 30Hz Set Value 40Hz
Fan Normal Control Normal Control Normal Control
Main EEV
Upper: Minimum Pulse
Lower: Maximum Pulse
Upper: Minimum Pulse
Lower: Maximum Pulse
Upper: Normal Control
Lower: Normal Control
Subcooling EEV Minimum Pulse 20 Pulse 80 Pulse
Four-Way Valve On Off On
Oil Return Control in Heating Mode
Table 5: Indoor Unit Oil Return Control in Heating Mode.
Component Start During Oil Return Operation Stop
Fan Normal Control Off Normal Control
Thermo On Unit EEV Normal Control 400~800 Pulse Normal Control
Thermo Off Unit EEV 80~130 Pulse 400~800 Pulse 80~130 Pulse
• Start: Oil Return Operation begins when the oil sensor measures low oil levels.
• Oil Return Operation will run for three (3) minutes.
• Stop: Oil Return Operation will end if / when compressor protection control starts.

LG MULTI V ARUN072BTE4 Specifications

General

Brand	LG
Model	MULTI V ARUN072BTE4
Category	Heat Pump
Language	English