LG MULTIV III, Руководство по обслуживанию

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Copyright ©2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Functions
2.1 Oil Return/Defrost Control
2.2 Liquid Bypass Control
2.3 Subcooling EEV Control
Target : about 25°C
Subcooling EEV works with Fuzzy rules to keep the degree of subcooling at the outlet of subcooler during
simultaneous operation
The degree of subcooler = T outlet of subcooler – T inlet of subcooler
Open or Close Close Keep High pressure gas valve
Close
Open
60 Hz
Running Ending Starting Component
40 Hz Stop Inverter compressor
Open or Close Keep Low pressure gas valve
Close Open for 30s Balancing valve
Are whole indoor units
operating
cooling mode?
Solenoid valve open
for liquid bypass
(High pressure gas
→
Low pressure gas valve)
Indoor units operating
Yes
No
2. Special Control