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22 | PRODUCT DATA
Single Zone High Efciency Standard Wall Mount Engineering Manual
Due to our policy of continuous product innovation, some specications may change without notication.
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LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
REFRIGERANT FLOW DIAGRAMS
Refrigerant Flow Diagram for LSN / LSU090, 120HSV5
Thermistor Description PCB Connector
TH1
Indoor air temperature thermistor
CN-TH1 (Indoor)
TH2
Evaporator inlet temperature thermistor
TH3
Evaporator middle temperature thermistor CN-TH3 (Indoor)
TH4
Evaporator outlet temperature thermistor
CN-TH2 (Indoor)
TH5
Water level sensor (optional)
TH6
Outdoor air temperature thermistor
C_PIPE/AIR (Outdoor)
TH7
Condensing temperature thermistor
TH8
Discharge pipe temperature thermistor D_PIPE (Outdoor)
Table 8: Single Zone High Efciency Wall Mount LSN/LSU090-120HSV5 Thermistor Details.
Field Piping
(Copper Tubing)
Field Pipin g
(Copper Tubing)
M
M
Heat
Exchanger
(Evaporator)
Heat
Exchanger
(Condenser)
Compressor
2-Way Valve
Valve
Reversing
Indoor Unit Outdoor Unit
: Cooling
: Heating
EEV
Th1
Th4
Th3
Th6
Th7
Th8
Liquid Side
Vapor Side
3-
Way Valve
Th5
Th2
Ø3/8 Inches
Ø1/4 Inches
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