Eev Control - LG Multi V Manual

1.3 EEV control

(1) EEV control
EEV operates with fuzzy control rules to keep the degree of super Heat(Superheat) (about 3°C(6°F)at the
evaporator outlet stable during heating mode
The degree of Superheat = Tsuction - Tevaporation
Tsuction : temperature at suction pipe sensor(°C/°F)
Tevaporation : evaporation temperature equivalent to low pressure(°C/°F)
(2) Subcooling EEV control(about 15°C(
Subcooling EEV works with fuzzy rules to keep the degree of Subcool at the outlet of subcooler during
cooling mode
The degree of Subcool = Tsubcool_out - Tevaporation
Tsubcool_out : temperatrue at outlet of subcooler(°C/°F)
Tevaporation : evaporation temperature equivalent to low pressure(°C/°F)
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°F))
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