Partial Defrost - LG MULTI V IV ARNU07GTU 2 Series Service Manual

2.3 Partial Defrost

Partial defrost operation divides heat exchanger with upper and parts that gives a chance to make the defrost
separately in order to proceed the heating performance continuously. Each cycle component operates as follow-
ing table during partial defrost operation.
Outdoor Unit
Component
Inv Compressor
FAN
Main EEV
Subcooling EEV
4way valve
Indoor Unit
Component
Fan
Thermo on unit EEV
n Ending condition
1) Upper defrost ending condition over setting temperature.
2) Low defrost ending condition over setting temperature.
3) Max. 12 minutes
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Only for training and service purposes
(ARUN***LTE4 ONLY)
Starting
Normal control
Normal control
Normal control
Normal control
Starting
ON(Setting)
Normal control
Running
Setting Value
Low pressure control
Normal control
Normal control
ON ON
Running
ON(Low)
Normal control
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Function
Ending
Normal control
Normal control
Normal control
Normal control
ON
Ending
ON(Setting)
Normal control
LGE Internal Use Only