Liquid Back Control - LG ARUV Series Service Manual

Function

3.4 Liquid back control

Main unit on cooling mode
Discharge temperature
Tdis < Tc + 12˚C
Tdis > Tc + 16 ˚C
Sub unit on cooling mode
Discharge temperature
Tdis < Tc + 12˚C
Tdis > Tc + 16 ˚C
Main unit on heating mode
Discharge temperature
Tdis < Tc + 17˚C
Tdis > Tc + 18 ˚C
Sub unit on heating mode
Discharge temperature
Tdis < Tc + 17˚C
Tdis > Tc + 18 ˚C
The logic starts after 9 min. on heating mode and 4 min. on cooling mode from the compressor running.
Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Indoor unit 's EEV
SH increasing control
Normal SH control
Indoor unit's EEV
SH increasing control
Normal SH control
Outdoor unit 's EEV
SH increasing control
Normal SH control
Indoor unit's EEV
Normal operation
Normal operation
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LGE Internal Use Only