LG ARNU423B8A4 - Refrigerant Flow Diagrams

VAH | 165
Vertical / Horizontal Air Handler
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Refrigerant Flow Diagram
Figure 42: NJ, NK Frame Refrigerant Flow Diagram.
NJ, NK Frames
Table 123: NJ, NK Frame Refrigerant Pipe Connection Port Diameters.
Model Liquid (inch) Vapor (inch)
NJ Frames
ARNU123NJA4
1/4 Brazed 1/2 Brazed
ARNU183NJA4
ARNU243NJA4
3/8 Brazed 5/8 Brazed
ARNU303NJA4
ARNU363NJA4
NK Frames
ARNU423NKA4
3/8 Brazed 5/8 Brazed
ARNU483NKA4
ARNU543NKA4
Thermistor Description
TH1 Return air thermistor
TH2 Pipe in thermistor
TH3 Pipe out thermistor
Table 124: NJ, NK Frame Thermistors.
VERTICAL / HORIZONTAL AIR HANDLER
Heat Exchanger
Sirroco Fan
lndoor unit
EEV
Heating
Cooling
Filter
Filter
TH3
TH2
TH1