LG ARNU763B8A4 - Refrigerant Flow Diagrams

30 | HIGH STATIC
MULTI V Ducted Indoor Unit Engineering Manual
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DUCTED HIGH STATIC
Refrigerant Flow Diagram
Figure 11: BH, M2, M3 Unit Refrigerant Flow Diagram.
BH, M2, M3 Units
Heat Exchanger
Sirocco Fan
TH3
TH1
TH2
lndoor unit
EEV
Heating
Cooling
Filter
Filter
Table 15: BH, M2, M3 Unit Refrigerant Pipe Connection Port Diameters.
Model Liquid (inch) Vapor (inch)
BH Units
ARNU073BHA4
1/4 Flare 1/2 Flare
ARNU093BHA4
ARNU123BHA4
ARNU153BHA4
ARNU183BHA4
ARNU243BHA4 3/8 Flare 5/8 Flare
M2 Units
ARNU073M2A4 1/4 Flare 1/2 Flare
ARNU093M2A4 1/4 Flare 1/2 Flare
ARNU123M2A4
1/4 Flare 1/2 Flare
ARNU153M2A4 1/4 Flare 1/2 Flare
ARNU183M2A4 1/4 Flare 1/2 Flare
ARNU243M2A4 3/8 Flare 5/8 Flare
ARNU283M2A4 3/8 Flare 5/8 Flare
ARNU363M2A4 3/8 Flare 5/8 Flare
ARNU423M2A4 3/8 Flare 5/8 Flare
M3 Units
ARNU283M3A4
3/8 Flare 5/8 Flare
ARNU363M3A4
ARNU423M3A4
ARNU483M3A4
ARNU543M3A4
Thermistor Description
TH1 Return air thermistor
TH2 Pipe in thermistor
TH3 Pipe out thermistor
Table 16: BH, M2, M3 Frame Thermistors.