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33
Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
GENERAL DATA
Refrigerant Piping Diagrams
Figure 5: High-Static Ducted BG/BR/BH, Low-Static Ducted L1/L2L3/B3/B4, and Vertical Air Handler NJ/NK Refrigerant Piping Diagram
Figure 6: High-Static Ducted B8 Refrigerant Piping Diagram
Cooling
Heating
Th1 = Thermistor, Return Air
Th2 = Thermistor, Pipe In
Th3 = Thermistor, Pipe Out
EEV = Electronic Expansion Valve
Heat Exchanger
Sirocco Fan
Th3
Th2
EEV
Filter
Filter
Th1
lndoor Unit
Refrigerant Pipes
to Outdoor Unit
Flare Nut
Liquid Line
Vapor
Line
Flare Nut
Heat Exchanger
Sirocco Fan
TH3
TH1
TH2
lndoor unit
EEV
Filter
Check
Valve
Solenoid Valve
Filter
Cooling
Heating
Th1 = Thermistor, Return Air
Th2 = Thermistor, Pipe In
Th3 = Thermistor, Pipe Out
EEV = Electronic Expansion Valve
Refrigerant Pipes
to Outdoor Unit
Flare Nut
Liquid Line
Vapor
Line
Flare Nut
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